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[209.132.180.131]) by mx.google.com with ESMTPS id a61si21525012pla.235.2017.05.23.11.26.31 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2017 11:26:31 -0700 (PDT) Received-SPF: pass (google.com: domain of libc-alpha-return-79665-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79665-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79665-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=wbkWJiRX08LiLwZt8+Z0UnlSiOgvW8x Ex7k2DT+GvioOyW5guozIM77ucYLFSu1p8p7z16fbheoj8RTR7hVqO41/43ZZVND Iv9z/ccAZuv06mUdJL6w49p4qHuM5JtR4jTPinjlAsFZlv0+1ZWvWpYA6lkjuYTS N/772Y+Dnys8= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; s=default; bh=bZteQhoa/+jaITvBns7cs+e33LE=; b=dsDgg vcPNUFZYfNp3I+1KU6I+If10K4NcEzgELfnfbUs7rHgFu2l1FtlO1LqHIeEl+tCP kNgJxoNqhIZiflJgVnw2IEu4g6FXPOir6emX6+mUX2nPic15gc3XuVcquKGZkdVM tbxXCqGseXzM6Sqbw8S+xHbfJdW4vFFXljbRMo= Received: (qmail 71860 invoked by alias); 23 May 2017 18:26:12 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 71753 invoked by uid 89); 23 May 2017 18:26:11 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.6 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_LOW, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: mail-qt0-f179.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=49t8VtcV9wEy6we0oOCdNr+qapOIIhWBB9Pfsto+0nE=; b=lEiUW2swciqsyjVXNJRweTc8xFX7O4xqm1EhBfnFvNkc1yge+GtDoDazOwh1dExZyk cAMXVDlueMTtkkaZiDfMtiAlIv5SfBnI0wXnoipmQ/dLErN+mOGNuLd8ixPxodq50JKG a+Cd0OeRdSOhAlLl2CeGAyMgskOpPUFGny1LZZMzQBB5m95crBbv77AGDlH74XjAuXSb 3W223NsN/Ya2M/pZRgZ+SDHgF7JW319YUl2GHmdfcpn0bfXQeVCcY4GWm6iMaQgVUk73 QisjVSszHo+EMYJp8lOXRFCL2ITKpRJcOF1wNz5qp1IEwYgIL0DeqIXztE+FcocL9+pz klVw== X-Gm-Message-State: AODbwcDOfFoNYLp2+T9aL6x+g8X+HUlICS7K2a0CisP6WStAJT+a8Yi8 q0vmPx65xL/pnv5nK6/z9Q== X-Received: by 10.200.33.232 with SMTP id 37mr31692562qtz.189.1495563969802; Tue, 23 May 2017 11:26:09 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Cc: Adhemerval Zanella Subject: [PATCH 1/5] Fix {INLINE,INTERNAL}_SYSCALL macros for x32 Date: Tue, 23 May 2017 15:25:56 -0300 Message-Id: <1495563960-669-2-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> References: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> From: Adhemerval Zanella The problem for x32 is the {INTERNAL,INLINE}_SYSCALL C macros explicit cast the arguments to 'long int', thus passing as 32 bits arguments that should be passed to 64 bits. Previous x32 implementation uses the auto-generated syscalls from assembly macros (syscalls.list), so the {INTERNAL,INLINE}_SYSCALL macros are never used with 64 bit argument in x32 (which are internally broken for this ILP). To fix it I used a strategy similar to MIPS64n32 (although both ABI differs for some syscalls on how top pass 64-bits arguments) where argument types for kernel call are defined using GCC extension 'typeof' with a arithmetic operation. This allows 64-bits arguments to be defined while 32-bits argument will still passed as 32-bits. I also cleanup the {INLINE,INTERNAL}_SYSCALL definition by defining 'inline_syscallX' instead of constructing the argument passing using macros (it adds some readability) and removed the ununsed INTERNAL_SYSCALL_NCS_TYPES define (since the patch idea is exactly to avoid requiric explicit types passing). Tested on x86_64 and x32. * sysdeps/unix/sysv/linux/x86_64/sysdep.h (INTERNAL_SYSCALL_NCS_TYPES): Remove define. (LOAD_ARGS_0): Likewise. (LOAD_ARGS_1): Likewise. (LOAD_ARGS_2): Likewise. (LOAD_ARGS_3): Likewise. (LOAD_ARGS_4): Likewise. (LOAD_ARGS_5): Likewise. (LOAD_ARGS_6): Likewise. (LOAD_REGS_0): Likewise. (LOAD_REGS_1): Likewise. (LOAD_REGS_2): Likewise. (LOAD_REGS_3): Likewise. (LOAD_REGS_4): Likewise. (LOAD_REGS_5): Likewise. (LOAD_REGS_6): Likewise. (ASM_ARGS_0): Likewise. (ASM_ARGS_1): Likewise. (ASM_ARGS_2): Likewise. (ASM_ARGS_3): Likewise. (ASM_ARGS_4): Likewise. (ASM_ARGS_5): Likewise. (ASM_ARGS_6): Likewise. (LOAD_ARGS_TYPES_1): Likewise. (LOAD_ARGS_TYPES_2): Likewise. (LOAD_ARGS_TYPES_3): Likewise. (LOAD_ARGS_TYPES_4): Likewise. (LOAD_ARGS_TYPES_5): Likewise. (LOAD_ARGS_TYPES_6): Likewise. (LOAD_REGS_TYPES_1): Likewise. (LOAD_REGS_TYPES_2): Likewise. (LOAD_REGS_TYPES_3): Likewise. (LOAD_REGS_TYPES_4): Likewise. (LOAD_REGS_TYPES_5): Likewise. (LOAD_REGS_TYPES_6): Likewise. (TYPEFY): New define. (ARGIFY): Likewise. (internal_syscall0): Likewise. (internal_syscall1): Likewise. (internal_syscall2): Likewise. (internal_syscall3): Likewise. (internal_syscall4): Likewise. (internal_syscall5): Likewise. (internal_syscall6): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/times.c (INTERNAL_SYSCALL_NCS): Remove define. (internal_syscall1): Add define. --- ChangeLog | 50 ++++++ sysdeps/unix/sysv/linux/x86_64/sysdep.h | 251 ++++++++++++++++------------- sysdeps/unix/sysv/linux/x86_64/x32/times.c | 24 +-- 3 files changed, 205 insertions(+), 120 deletions(-) -- 2.7.4 diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/sysdeps/unix/sysv/linux/x86_64/sysdep.h index 7b8bd79..6d0a6f4 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sysdep.h +++ b/sysdeps/unix/sysv/linux/x86_64/sysdep.h @@ -221,33 +221,148 @@ /* Registers clobbered by syscall. */ # define REGISTERS_CLOBBERED_BY_SYSCALL "cc", "r11", "cx" -# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ - ({ \ - unsigned long int resultvar; \ - LOAD_ARGS_##nr (args) \ - LOAD_REGS_##nr \ - asm volatile ( \ - "syscall\n\t" \ - : "=a" (resultvar) \ - : "0" (name) ASM_ARGS_##nr : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ - (long int) resultvar; }) -# undef INTERNAL_SYSCALL -# define INTERNAL_SYSCALL(name, err, nr, args...) \ - INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args) - -# define INTERNAL_SYSCALL_NCS_TYPES(name, err, nr, args...) \ - ({ \ - unsigned long int resultvar; \ - LOAD_ARGS_TYPES_##nr (args) \ - LOAD_REGS_TYPES_##nr (args) \ - asm volatile ( \ - "syscall\n\t" \ - : "=a" (resultvar) \ - : "0" (name) ASM_ARGS_##nr : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ - (long int) resultvar; }) -# undef INTERNAL_SYSCALL_TYPES -# define INTERNAL_SYSCALL_TYPES(name, err, nr, args...) \ - INTERNAL_SYSCALL_NCS_TYPES (__NR_##name, err, nr, ##args) +/* Create a variable 'name' based on type 'X' to avoid explicit types. + This is mainly used set use 64-bits arguments in x32. */ +#define TYPEFY(X, name) __typeof__ ((X) - (X)) name +/* Explicit cast the argument to avoid integer from pointer warning on + x32. */ +#define ARGIFY(X) ((__typeof__ ((X) - (X))) (X)) + +#undef INTERNAL_SYSCALL +#define INTERNAL_SYSCALL(name, err, nr, args...) \ + internal_syscall##nr (SYS_ify (name), err, args) + +#undef INTERNAL_SYSCALL_NCS +#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \ + internal_syscall##nr (number, err, args) + +#undef internal_syscall0 +#define internal_syscall0(number, err, dummy...) \ +({ \ + unsigned long int resultvar; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) + +#undef internal_syscall1 +#define internal_syscall1(number, err, arg1) \ +({ \ + unsigned long int resultvar; \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) + +#undef internal_syscall2 +#define internal_syscall2(number, err, arg1, arg2) \ +({ \ + unsigned long int resultvar; \ + TYPEFY (arg2, __arg2) = ARGIFY (arg2); \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg2, _a2) asm ("rsi") = __arg2; \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1), "r" (_a2) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) + +#undef internal_syscall3 +#define internal_syscall3(number, err, arg1, arg2, arg3) \ +({ \ + unsigned long int resultvar; \ + TYPEFY (arg3, __arg3) = ARGIFY (arg3); \ + TYPEFY (arg2, __arg2) = ARGIFY (arg2); \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg3, _a3) asm ("rdx") = __arg3; \ + register TYPEFY (arg2, _a2) asm ("rsi") = __arg2; \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1), "r" (_a2), "r" (_a3) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) + +#undef internal_syscall4 +#define internal_syscall4(number, err, arg1, arg2, arg3, arg4) \ +({ \ + unsigned long int resultvar; \ + TYPEFY (arg4, __arg4) = ARGIFY (arg4); \ + TYPEFY (arg3, __arg3) = ARGIFY (arg3); \ + TYPEFY (arg2, __arg2) = ARGIFY (arg2); \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg4, _a4) asm ("r10") = __arg4; \ + register TYPEFY (arg3, _a3) asm ("rdx") = __arg3; \ + register TYPEFY (arg2, _a2) asm ("rsi") = __arg2; \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1), "r" (_a2), "r" (_a3), "r" (_a4) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) + +#undef internal_syscall5 +#define internal_syscall5(number, err, arg1, arg2, arg3, arg4, arg5) \ +({ \ + unsigned long int resultvar; \ + TYPEFY (arg5, __arg5) = ARGIFY (arg5); \ + TYPEFY (arg4, __arg4) = ARGIFY (arg4); \ + TYPEFY (arg3, __arg3) = ARGIFY (arg3); \ + TYPEFY (arg2, __arg2) = ARGIFY (arg2); \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg5, _a5) asm ("r8") = __arg5; \ + register TYPEFY (arg4, _a4) asm ("r10") = __arg4; \ + register TYPEFY (arg3, _a3) asm ("rdx") = __arg3; \ + register TYPEFY (arg2, _a2) asm ("rsi") = __arg2; \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1), "r" (_a2), "r" (_a3), "r" (_a4), \ + "r" (_a5) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) + +#undef internal_syscall6 +#define internal_syscall6(number, err, arg1, arg2, arg3, arg4, arg5, arg6) \ +({ \ + unsigned long int resultvar; \ + TYPEFY (arg6, __arg6) = ARGIFY (arg6); \ + TYPEFY (arg5, __arg5) = ARGIFY (arg5); \ + TYPEFY (arg4, __arg4) = ARGIFY (arg4); \ + TYPEFY (arg3, __arg3) = ARGIFY (arg3); \ + TYPEFY (arg2, __arg2) = ARGIFY (arg2); \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg6, _a6) asm ("r9") = __arg6; \ + register TYPEFY (arg5, _a5) asm ("r8") = __arg5; \ + register TYPEFY (arg4, _a4) asm ("r10") = __arg4; \ + register TYPEFY (arg3, _a3) asm ("rdx") = __arg3; \ + register TYPEFY (arg2, _a2) asm ("rsi") = __arg2; \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1), "r" (_a2), "r" (_a3), "r" (_a4), \ + "r" (_a5), "r" (_a6) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long int) resultvar; \ +}) # undef INTERNAL_SYSCALL_ERROR_P # define INTERNAL_SYSCALL_ERROR_P(val, err) \ @@ -261,88 +376,6 @@ # define HAVE_GETTIMEOFDAY_VSYSCALL 1 # define HAVE_GETCPU_VSYSCALL 1 -# define LOAD_ARGS_0() -# define LOAD_REGS_0 -# define ASM_ARGS_0 - -# define LOAD_ARGS_TYPES_1(t1, a1) \ - t1 __arg1 = (t1) (a1); \ - LOAD_ARGS_0 () -# define LOAD_REGS_TYPES_1(t1, a1) \ - register t1 _a1 asm ("rdi") = __arg1; \ - LOAD_REGS_0 -# define ASM_ARGS_1 ASM_ARGS_0, "r" (_a1) -# define LOAD_ARGS_1(a1) \ - LOAD_ARGS_TYPES_1 (long int, a1) -# define LOAD_REGS_1 \ - LOAD_REGS_TYPES_1 (long int, a1) - -# define LOAD_ARGS_TYPES_2(t1, a1, t2, a2) \ - t2 __arg2 = (t2) (a2); \ - LOAD_ARGS_TYPES_1 (t1, a1) -# define LOAD_REGS_TYPES_2(t1, a1, t2, a2) \ - register t2 _a2 asm ("rsi") = __arg2; \ - LOAD_REGS_TYPES_1(t1, a1) -# define ASM_ARGS_2 ASM_ARGS_1, "r" (_a2) -# define LOAD_ARGS_2(a1, a2) \ - LOAD_ARGS_TYPES_2 (long int, a1, long int, a2) -# define LOAD_REGS_2 \ - LOAD_REGS_TYPES_2 (long int, a1, long int, a2) - -# define LOAD_ARGS_TYPES_3(t1, a1, t2, a2, t3, a3) \ - t3 __arg3 = (t3) (a3); \ - LOAD_ARGS_TYPES_2 (t1, a1, t2, a2) -# define LOAD_REGS_TYPES_3(t1, a1, t2, a2, t3, a3) \ - register t3 _a3 asm ("rdx") = __arg3; \ - LOAD_REGS_TYPES_2(t1, a1, t2, a2) -# define ASM_ARGS_3 ASM_ARGS_2, "r" (_a3) -# define LOAD_ARGS_3(a1, a2, a3) \ - LOAD_ARGS_TYPES_3 (long int, a1, long int, a2, long int, a3) -# define LOAD_REGS_3 \ - LOAD_REGS_TYPES_3 (long int, a1, long int, a2, long int, a3) - -# define LOAD_ARGS_TYPES_4(t1, a1, t2, a2, t3, a3, t4, a4) \ - t4 __arg4 = (t4) (a4); \ - LOAD_ARGS_TYPES_3 (t1, a1, t2, a2, t3, a3) -# define LOAD_REGS_TYPES_4(t1, a1, t2, a2, t3, a3, t4, a4) \ - register t4 _a4 asm ("r10") = __arg4; \ - LOAD_REGS_TYPES_3(t1, a2, t2, a2, t3, a3) -# define ASM_ARGS_4 ASM_ARGS_3, "r" (_a4) -# define LOAD_ARGS_4(a1, a2, a3, a4) \ - LOAD_ARGS_TYPES_4 (long int, a1, long int, a2, long int, a3, \ - long int, a4) -# define LOAD_REGS_4 \ - LOAD_REGS_TYPES_4 (long int, a1, long int, a2, long int, a3, \ - long int, a4) - -# define LOAD_ARGS_TYPES_5(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ - t5 __arg5 = (t5) (a5); \ - LOAD_ARGS_TYPES_4 (t1, a1, t2, a2, t3, a3, t4, a4) -# define LOAD_REGS_TYPES_5(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) \ - register t5 _a5 asm ("r8") = __arg5; \ - LOAD_REGS_TYPES_4 (t1, a1, t2, a2, t3, a3, t4, a4) -# define ASM_ARGS_5 ASM_ARGS_4, "r" (_a5) -# define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ - LOAD_ARGS_TYPES_5 (long int, a1, long int, a2, long int, a3, \ - long int, a4, long int, a5) -# define LOAD_REGS_5 \ - LOAD_REGS_TYPES_5 (long int, a1, long int, a2, long int, a3, \ - long int, a4, long int, a5) - -# define LOAD_ARGS_TYPES_6(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ - t6 __arg6 = (t6) (a6); \ - LOAD_ARGS_TYPES_5 (t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) -# define LOAD_REGS_TYPES_6(t1, a1, t2, a2, t3, a3, t4, a4, t5, a5, t6, a6) \ - register t6 _a6 asm ("r9") = __arg6; \ - LOAD_REGS_TYPES_5 (t1, a1, t2, a2, t3, a3, t4, a4, t5, a5) -# define ASM_ARGS_6 ASM_ARGS_5, "r" (_a6) -# define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ - LOAD_ARGS_TYPES_6 (long int, a1, long int, a2, long int, a3, \ - long int, a4, long int, a5, long int, a6) -# define LOAD_REGS_6 \ - LOAD_REGS_TYPES_6 (long int, a1, long int, a2, long int, a3, \ - long int, a4, long int, a5, long int, a6) - #endif /* __ASSEMBLER__ */ diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/times.c b/sysdeps/unix/sysv/linux/x86_64/x32/times.c index d56106e..8763047 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/times.c +++ b/sysdeps/unix/sysv/linux/x86_64/x32/times.c @@ -19,17 +19,19 @@ #include /* Linux times system call returns 64-bit integer. */ -#undef INTERNAL_SYSCALL_NCS -#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ - ({ \ - unsigned long long int resultvar; \ - LOAD_ARGS_##nr (args) \ - LOAD_REGS_##nr \ - asm volatile ( \ - "syscall\n\t" \ - : "=a" (resultvar) \ - : "0" (name) ASM_ARGS_##nr : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ - (long long int) resultvar; }) +#undef internal_syscall1 +#define internal_syscall1(number, err, arg1) \ +({ \ + unsigned long long int resultvar; \ + TYPEFY (arg1, __arg1) = ARGIFY (arg1); \ + register TYPEFY (arg1, _a1) asm ("rdi") = __arg1; \ + asm volatile ( \ + "syscall\n\t" \ + : "=a" (resultvar) \ + : "0" (number), "r" (_a1) \ + : "memory", REGISTERS_CLOBBERED_BY_SYSCALL); \ + (long long int) resultvar; \ +}) #undef INTERNAL_SYSCALL_ERROR_P #define INTERNAL_SYSCALL_ERROR_P(val, err) \ From patchwork Tue May 23 18:25:57 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 100384 Delivered-To: patch@linaro.org Received: by 10.140.96.100 with SMTP id j91csp448575qge; Tue, 23 May 2017 11:26:43 -0700 (PDT) X-Received: by 10.98.35.17 with SMTP id j17mr33849889pfj.133.1495564003001; 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[209.132.180.131]) by mx.google.com with ESMTPS id 3si21396539plz.125.2017.05.23.11.26.42 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2017 11:26:42 -0700 (PDT) Received-SPF: pass (google.com: domain of libc-alpha-return-79666-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79666-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79666-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=BS6rOR6a3NwAJQJTDifuZ/TzC/rMFBO GRWRq0mxbQArSTlm9G7IKTmjAK/FCfh5983N2jL5cLRWYuFEjbc6BDVixbu33BfM bXTMkXTJ/x7eMGVueM8hz1J81KgJbvbeSQX9TY3PTdchGK0BnPPJeVV/lHgBVUzh BlFHIIewv84E= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=ASyvZwCjU15Ek20wwoMasLKA648=; b=xSHri BcuNgDj1Yhx7uUVngvJuBw4nftgx+pAv38mw1s06r8f6aYQ9eQQchx7SBqczR94g V7iZ9QN5WEEEK1+Rk60B2VE0NjrIuT9Mq4dst1CA5XwRnN4LojAszrI8toCc4eaB WAmtg0K5910dY5MolgEK5moslD1SfVoqRnVHjc= Received: (qmail 71911 invoked by alias); 23 May 2017 18:26:12 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 71812 invoked by uid 89); 23 May 2017 18:26:11 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.9 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy=Strong X-HELO: mail-qk0-f172.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=cUGmKuv+3LoHzmWHY5wrb8dmtu+ve44CH8yQsayVti8=; b=f+Ve83VWCRU/+GOIxEQ+IVjCH+EMp5NTOVXGHSQhl0lJ7pdP/IUp3Mu6c0sr4LstiS +1+HlsjmCSQt+lBJ9JVtd34ea4De8K0bioHJ/ZuNSHoxbFvZSFukTPinXMK+eFWX8dlH 4kt3GlHio+YHdoyb9UGoKf3fZSGeplEoYiU5FI4jy/3Bod74ECPX8rPfjs2dzsJsT1a1 /8lYo+Q6noyQ7vGtGh9TKqQuCYSGjkjZxMjRcjFtvHzD9Cwt+6IFKRNhXYicFUtxNeO9 PTNXTdUhBFAGoGGFS9X8DpOcLDWKJUNBSgTQGH1Gh9nDJHTzc5Gdkbualo4pVNhnO+av huDw== X-Gm-Message-State: AODbwcB2sI8v0Q1+R79bnvNfm5QjQBDuXSTM2twdBKOrU9jGjTbyLf+3 tIhJC8ZY6QOd7MOMRyIq7Q== X-Received: by 10.55.114.2 with SMTP id n2mr30235622qkc.157.1495563971180; Tue, 23 May 2017 11:26:11 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 2/5] Remove p{read, write}{v} and fallocate from x86 auto-generation list Date: Tue, 23 May 2017 15:25:57 -0300 Message-Id: <1495563960-669-3-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> References: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> With {INLINE,INTERNAL}_SYSCALL macros fixed for 64-bits arguments on x32, we can remove the p{read,write}{v} from auto-generation list. Tested on x86_64 and x32. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (pread64): Remove. (preadv64): Likewise. (pwrite64(: Likewise. (pwritev64): Likewise. --- ChangeLog | 5 +++++ sysdeps/unix/sysv/linux/x86_64/syscalls.list | 4 ---- sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list | 1 - 3 files changed, 5 insertions(+), 5 deletions(-) -- 2.7.4 diff --git a/sysdeps/unix/sysv/linux/x86_64/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/syscalls.list index 889193b..d46524e 100644 --- a/sysdeps/unix/sysv/linux/x86_64/syscalls.list +++ b/sysdeps/unix/sysv/linux/x86_64/syscalls.list @@ -2,10 +2,6 @@ arch_prctl EXTRA arch_prctl i:ii __arch_prctl arch_prctl modify_ldt EXTRA modify_ldt i:ipi __modify_ldt modify_ldt -pread64 - pread64 Ci:ipii __libc_pread __libc_pread64 __pread64 pread64 __pread pread -preadv64 - preadv Ci:ipii preadv64 preadv -pwrite64 - pwrite64 Ci:ipii __libc_pwrite __libc_pwrite64 __pwrite64 pwrite64 __pwrite pwrite -pwritev64 - pwritev Ci:ipii pwritev64 pwritev syscall_clock_gettime EXTRA clock_gettime Ei:ip __syscall_clock_gettime diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list index a41c8ac..b44f6f9 100644 --- a/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list +++ b/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list @@ -1,6 +1,5 @@ # File name Caller Syscall name # args Strong name Weak names -fallocate - fallocate Ci:iiii fallocate fallocate64 gettimeofday - gettimeofday:__vdso_gettimeofday@LINUX_2.6 i:pP __gettimeofday gettimeofday personality EXTRA personality Ei:i __personality personality posix_fadvise64 - fadvise64 Vi:iiii posix_fadvise posix_fadvise64 From patchwork Tue May 23 18:25:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 100385 Delivered-To: patch@linaro.org Received: by 10.140.96.100 with SMTP id j91csp448630qge; Tue, 23 May 2017 11:26:51 -0700 (PDT) X-Received: by 10.99.97.83 with SMTP id v80mr34649724pgb.94.1495564011731; Tue, 23 May 2017 11:26:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1495564011; cv=none; d=google.com; s=arc-20160816; b=OMUTlrAMvykhFW3csEgZSau+9Uj3ppXnJETLQZZ6pnkpeJMg7H4wtAThD5/uW2moUH qmrdg/8+r7JhrAwnmlKY5gRHTgdvG6ewAlGVMAVXWAFbQeEZVuy4sM11BMY+DjLTK4vO wEvsX3kklxDty7AZVfmFGNF7Cm4oLHRpEsKvibMGvWwoux26v5R/HlZVz8CWoet5hD5R 4gvzb1dL+5RMpcoQANwjn/AEtEmS011cRuCrF5fT5AzWkZMl0J0QR/XcbxCXDVgz8NQn 9mqh5hDcb9KfJZzIA9qQ3whE6NkSHif5Gjw7dyNNecaokPqLBZQ1YJiD2SQvgrlrI0yJ eOuw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:to:from:delivered-to :sender:list-help:list-post:list-archive:list-subscribe :list-unsubscribe:list-id:precedence:mailing-list:dkim-signature :domainkey-signature:arc-authentication-results; bh=9ahv5ottJ1RhSm0LDEY9jnHsYUyAGwpTYv0mWF4Qt98=; b=cZY8pg29n63eTj/Qs8yKm2YrnQkTqFLh7EXxBd8nSyo+XRl6mPWCDdiTo0kbLnUixm BDzXcJK9z3QlUiAgqabqsi9nii6dyF2UZ9nXTZ18mN2hMSI3CBNYMXdUu28TYySFGQC5 iB77xtmIMmmKGsfYiah3zYAgC6h6nshODrlxJFQo1nYO5yY+gBbU6AJ84dNUaewXj4Tr GLeMcVG3i29eCGUKP/Az+ILoi2KWT6XtNGXmRqGT3vfwKP46WkXUzHN6A1ixqCHPmy5S d7IBvAfA7v5GGqI/cDbCDbyDvB1BGfBIDAWOdqkD2aodI5D/qimPsbtoOcOg2BFW2SbL 7NqQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79667-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79667-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from sourceware.org (server1.sourceware.org. [209.132.180.131]) by mx.google.com with ESMTPS id d8si21996137pgn.60.2017.05.23.11.26.51 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2017 11:26:51 -0700 (PDT) Received-SPF: pass (google.com: domain of libc-alpha-return-79667-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79667-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79667-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=KlY671fCGdG9UTcSJniYIoZTK0RBGaX eD7d8PKNYK4qYVU1dyRAUE97Qt0A78sq+MMQeQjDyVe22uem+Pgo78uYeySkL+2y TfyBnGh0FKfNpbeisGHNbwDRIOELQUVl7MMv03PG85deXQqgqowysNJH0huWGFjI dCjxoxWinMr8= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=TM05xcrHBiyvzwrnuMqXFgAGToQ=; b=QpoSA 21sW0hW4kR0JXYkXSZMx6HnTdv313pP5rGuu+wb8IbiHEhhwbtCg/DSF+IWiKXro zwdif+Iq2/o+gMwIhgC16qSIJpU+AiqcY7KujkeIXiux4sNDioPDx/5jQ5Mo5TwU vwQN0QqeNDABZE3h+Q5mqPJx39VOF30QJP0Rng= Received: (qmail 72270 invoked by alias); 23 May 2017 18:26:14 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 72019 invoked by uid 89); 23 May 2017 18:26:12 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.9 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy=iii X-HELO: mail-qt0-f170.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=9ahv5ottJ1RhSm0LDEY9jnHsYUyAGwpTYv0mWF4Qt98=; b=CZ9Zhepy6MbamEUv6cX5VBjhrebFQRtVCLBmZWsVRU80P/ubgA0zUWzJJ6XIhsDYb2 NCl3CHUZIO9OEgOdJCzld7AcodaY7MYZblxWInJOn0cK+kjMT06DGFaxvOPru7bnWwTE 4Lc9CoEfmftQqMDg4lj41lzzOMzMSPY2mT2fdBKonb+AaXYvc8pTtXj+Vt8vSX27ZHrq V2Fm1IaiRyU3U3Tl/Ms4CkTgnVpDnrL/EahR7ac+0CAcoeFNYxzLiHDoiEd9TPgjusg0 z6YlCORNDjbnbYYhc6Ed3nEe2RAY4chNt6JsOIR00tpDd9oIoPQejUbwZnXqN7gJAagp VdgA== X-Gm-Message-State: AODbwcDstHKEYs+Hf60YRp/WcHff4tqFptSy8I8xMQeWjRg/Uk0PO7Oo E58s2TiVcl/9C64xrCNBiA== X-Received: by 10.200.44.41 with SMTP id d38mr28166611qta.182.1495563972626; Tue, 23 May 2017 11:26:12 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 3/5] linux: Consolidate sync_file_range implementation Date: Tue, 23 May 2017 15:25:58 -0300 Message-Id: <1495563960-669-4-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> References: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> This patch consolidates Linux sync_file_range at default sysdeps/unix/sysv/linux/sync_file_range.c implementation. It also moves the rules flags from generic io/Makefile to Linux one due the fact it is a Linux-only symbol. Checked on i686-linux-gnu and x86_64-linux-gnu. * io/Makefile (CFLAGS-sync_file_range.c): Remove rule. * sysdeps/unix/sysv/linux/Makefile (CFLAGS-sync_file_range.c): New rule. * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Remove sync_file_range. --- ChangeLog | 6 ++++++ io/Makefile | 1 - sysdeps/unix/sysv/linux/Makefile | 1 + sysdeps/unix/sysv/linux/wordsize-64/syscalls.list | 1 - 4 files changed, 7 insertions(+), 2 deletions(-) -- 2.7.4 diff --git a/io/Makefile b/io/Makefile index 16365e5..2f26bf5 100644 --- a/io/Makefile +++ b/io/Makefile @@ -99,7 +99,6 @@ CFLAGS-posix_fallocate.c = -fexceptions CFLAGS-posix_fallocate64.c = -fexceptions CFLAGS-fallocate.c = -fexceptions CFLAGS-fallocate64.c = -fexceptions -CFLAGS-sync_file_range.c = -fexceptions CFLAGS-read.c = -fexceptions CFLAGS-write.c = -fexceptions diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 99b3f9d..1a170c2 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -25,6 +25,7 @@ CFLAGS-tee.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-vmsplice.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-splice.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-open_by_handle_at.c = -fexceptions -fasynchronous-unwind-tables +CFLAGS-sync_file_range.c = -fexceptions -fasynchronous-unwind-tables CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=(0x80000000-sysconf(_SC_PAGESIZE))" # Note that bits/mman-linux.h is listed here though the file lives in the diff --git a/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list b/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list index 5c78677..4bb7ebf 100644 --- a/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list +++ b/sysdeps/unix/sysv/linux/wordsize-64/syscalls.list @@ -4,7 +4,6 @@ fstatfs - fstatfs i:ip __fstatfs fstatfs fstatfs64 __fstatfs64 statfs - statfs i:sp __statfs statfs statfs64 readahead - readahead i:iii __readahead readahead sendfile - sendfile i:iipi sendfile sendfile64 -sync_file_range - sync_file_range Ci:iiii sync_file_range prlimit EXTRA prlimit64 i:iipp prlimit prlimit64 fanotify_mark EXTRA fanotify_mark i:iiiis fanotify_mark From patchwork Tue May 23 18:25:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 100386 Delivered-To: patch@linaro.org Received: by 10.140.96.100 with SMTP id j91csp448688qge; Tue, 23 May 2017 11:27:01 -0700 (PDT) X-Received: by 10.84.164.193 with SMTP id l1mr23600303plg.154.1495564020982; Tue, 23 May 2017 11:27:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1495564020; cv=none; d=google.com; s=arc-20160816; b=0ekbTebyULg4iHUIJpdNfIcUux8y70vfTdu/oT7FXxNnSm19575IFcdAwu/Y9pdQXs G2xH4zXz0UbW/IQd0R0IWwdVq+5kBx+sY6OvypuvqWEv6oDB61RhSNouBpdkHcaND9hp zIL+D3nmUiDmuJPEIpOmjFUcJuUYOtb8blk3OIEONyMjVtsT/kmR8AVnCrY+zfnvgl+5 ZxX9lz3DNWQhYRhoiIA43gI/N/eOZr6YqgOoKtbs/sBRVQuv/B/XDHxEUIhlibJOvWOS 8u6v6DoXWK7KAhksGQpSA7Pfq428POfMWOf3++Dv7WsrJvrwHWPE1pCiS5rLVuYL6wqp l+kw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:to:from:delivered-to :sender:list-help:list-post:list-archive:list-subscribe :list-unsubscribe:list-id:precedence:mailing-list:dkim-signature :domainkey-signature:arc-authentication-results; bh=TnWB13JVuNyhpKIuFMBJeCMLPTSLtJqbJRsEUSsGQWo=; b=w9eSbE6h83WIuJ7uYpj9ABGUIUHRJbArJaeWIc1z4WmbwkfnnazTbG14RZgFS3744L MGWBs9QrUP2eMlcxPucX+rkSdzbs5R3OTZO3ctw5CYcNU0rrseGAWN8OhVWX3pPd4Sb+ FUBoJ0mKCVZOKScodvpSTSekR1/vXim/Qc3LrkO/4mtTSSSk7o3zUILzj7EUllOfPxKd 5YcF8897bhVpt3Uo+w7bBjr/KD941QSojhwPYFo+SNDj1pRsP7YQNiCMO1QXNtLrDD9u fTIoPz11p7wQDC/NSy19GdgPsrir/GlFYPyrrXlqT7/b2cRHNSTrgnom4IWeGY+pEgXm Z0uw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79668-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79668-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from sourceware.org (server1.sourceware.org. [209.132.180.131]) by mx.google.com with ESMTPS id z79si22099847pfj.3.2017.05.23.11.27.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2017 11:27:00 -0700 (PDT) Received-SPF: pass (google.com: domain of libc-alpha-return-79668-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79668-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79668-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=hdW4wL1ZGBW221/O1k1HTyThIhkm8dg RlFAhCkdk/UdRSBJAKdLpstzCtF2zi4m1DiOYTM8vqE/4wzcch4UwBYMQc7j6N22 DG2Cg6qEHI3Hr/zEkGrHJitB6DHiOMsS5R/yImNHaOwCzBKvEXgW4HYp5PZxv2pK d5ZFJpdGqc4s= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=4W4Sc0vHhMjIhNuGPlxUxiJl2QE=; b=P3sok O99gwYqZtoaULkPWmpI9th3WYUmB6cG+kkUgDIRODlwjFlQuO3DL5ZhPZ8FbU9vl Th1k0H1nS2+Xj/JD15pWelce/Uzy95sVhkyrxjq4Fw1C0RIwVjTkqwTHUGG/rCAA VJrX9+vYKRUf9uJVAW7qr/FMvfuTXWwznVl1IA= Received: (qmail 72793 invoked by alias); 23 May 2017 18:26:18 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 72606 invoked by uid 89); 23 May 2017 18:26:17 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.9 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy=fex, 1531 X-HELO: mail-qk0-f177.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=TnWB13JVuNyhpKIuFMBJeCMLPTSLtJqbJRsEUSsGQWo=; b=WfgWIIj5aS8+fK5IjLB3pOwaiiePeW2J0IaBT8vRfdQjyWWIhgFbOh7f36O2+0AwfN HQRih7irAXDB0iGq2rGhxiQ0/kfdeyJ79g7FIVheG/Jl+5yuWRqydBway/w5/KxQqRW4 HGs5Iup+CQqMTxvbFjiDfT7hQnk/wO6lW14oJ9NP0cCSBOXzgFt+Qw3LReGlP8UhN1Ma UDV762ECSPeW9058NLtt+oGVPgxljvhfhCXFOGGDxeERhl1fajRvk7QpriFZTxVVR6Hq 61Pl9QC2sZ4wuDuGfIkjgQ1Q1McKGxQiiv5IGJKfAYv65rkYUpVpGcriAuAVlg6rFv8m 8ehw== X-Gm-Message-State: AODbwcAqN3k613KTHwFOvuVf6+TW056cYESBnlALuZkjEW7irNbaKzvo fAOebJF6K7yVphO5aBNHjw== X-Received: by 10.55.111.198 with SMTP id k189mr29290214qkc.160.1495563974083; Tue, 23 May 2017 11:26:14 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 4/5] Consolidate Linux fcntl implementation Date: Tue, 23 May 2017 15:25:59 -0300 Message-Id: <1495563960-669-5-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> References: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> This patch consolidates the fcntl Linux syscall generation on sysdeps/unix/sysv/linux/fcntl.c. It basically removes all the architecture define implementations. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. I also did a sanity check with fcntl tests from LTP to check for possible issue on the aforementioned architectures. * sysdeps/unix/sysv/linux/arm/fcntl.c: Remove file. * sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/hppa/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/m68k/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/sh/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/fcntl.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Refactor to use default implementation. --- ChangeLog | 16 ++++ sysdeps/unix/sysv/linux/arm/fcntl.c | 1 - sysdeps/unix/sysv/linux/fcntl.c | 52 ++++++------- .../unix/sysv/linux/generic/wordsize-32/fcntl.c | 86 ---------------------- sysdeps/unix/sysv/linux/hppa/fcntl.c | 1 - sysdeps/unix/sysv/linux/i386/fcntl.c | 61 --------------- sysdeps/unix/sysv/linux/m68k/fcntl.c | 1 - sysdeps/unix/sysv/linux/microblaze/fcntl.c | 1 - sysdeps/unix/sysv/linux/mips/mips32/fcntl.c | 1 - sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c | 1 - sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c | 1 - sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c | 49 ++---------- sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c | 1 - sysdeps/unix/sysv/linux/sh/fcntl.c | 1 - sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c | 1 - 15 files changed, 50 insertions(+), 224 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/arm/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/hppa/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/i386/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/m68k/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/microblaze/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/mips/mips32/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/sh/fcntl.c delete mode 100644 sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c -- 2.7.4 diff --git a/ChangeLog b/ChangeLog index 2928e25..bb5d320 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,21 @@ 2017-05-23 Adhemerval Zanella + * sysdeps/unix/sysv/linux/arm/fcntl.c: Remove file. + * sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/hppa/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/m68k/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/microblaze/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/mips/mips32/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/sh/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c: Likewise. + * sysdeps/unix/sysv/linux/fcntl.c: New file. + * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Refactor to + use default implementation. + * io/Makefile (CFLAGS-sync_file_range.c): Remove rule. * sysdeps/unix/sysv/linux/Makefile (CFLAGS-sync_file_range.c): New rule. diff --git a/sysdeps/unix/sysv/linux/arm/fcntl.c b/sysdeps/unix/sysv/linux/arm/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/arm/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/fcntl.c b/sysdeps/unix/sysv/linux/fcntl.c index 02f3252..76e846c 100644 --- a/sysdeps/unix/sysv/linux/fcntl.c +++ b/sysdeps/unix/sysv/linux/fcntl.c @@ -15,31 +15,36 @@ License along with the GNU C Library; if not, see . */ -#include -#include -#include /* Must come before . */ #include #include +#include +#include -#include +#ifndef __NR_fcntl64 +# define __NR_fcntl64 __NR_fcntl +#endif +#ifndef FCNTL_ADJUST_CMD +# define FCNTL_ADJUST_CMD(__cmd) __cmd +#endif static int -do_fcntl (int fd, int cmd, void *arg) +fcntl_common (int fd, int cmd, void *arg) { - if (cmd != F_GETOWN) - return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg); - - INTERNAL_SYSCALL_DECL (err); - struct f_owner_ex fex; - int res = INTERNAL_SYSCALL (fcntl, err, 3, fd, F_GETOWN_EX, &fex); - if (!INTERNAL_SYSCALL_ERROR_P (res, err)) - return fex.type == F_OWNER_GID ? -fex.pid : fex.pid; - - return INLINE_SYSCALL_ERROR_RETURN_VALUE (INTERNAL_SYSCALL_ERRNO (res, + if (cmd == F_GETOWN) + { + INTERNAL_SYSCALL_DECL (err); + struct f_owner_ex fex; + int res = INTERNAL_SYSCALL_CALL (fcntl64, err, fd, F_GETOWN_EX, &fex); + if (!INTERNAL_SYSCALL_ERROR_P (res, err)) + return fex.type == F_OWNER_GID ? -fex.pid : fex.pid; + + return INLINE_SYSCALL_ERROR_RETURN_VALUE (INTERNAL_SYSCALL_ERRNO (res, err)); -} + } + return INLINE_SYSCALL_CALL (fcntl64, fd, cmd, (void *) arg); +} #ifndef NO_CANCELLATION int @@ -52,11 +57,10 @@ __fcntl_nocancel (int fd, int cmd, ...) arg = va_arg (ap, void *); va_end (ap); - return do_fcntl (fd, cmd, arg); + return fcntl_common (fd, cmd, arg); } #endif - int __libc_fcntl (int fd, int cmd, ...) { @@ -67,16 +71,12 @@ __libc_fcntl (int fd, int cmd, ...) arg = va_arg (ap, void *); va_end (ap); - if (SINGLE_THREAD_P || cmd != F_SETLKW) - return do_fcntl (fd, cmd, arg); - - int oldtype = LIBC_CANCEL_ASYNC (); - - int result = do_fcntl (fd, cmd, arg); + cmd = FCNTL_ADJUST_CMD (cmd); - LIBC_CANCEL_RESET (oldtype); + if (cmd == F_SETLKW || cmd == F_SETLKW64) + return SYSCALL_CANCEL (fcntl64, fd, cmd, (void *) arg); - return result; + return fcntl_common (fd, cmd, arg); } libc_hidden_def (__libc_fcntl) diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c deleted file mode 100644 index 20399f9..0000000 --- a/sysdeps/unix/sysv/linux/generic/wordsize-32/fcntl.c +++ /dev/null @@ -1,86 +0,0 @@ -/* Copyright (C) 2011-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf , 2011. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#include -#include -#include /* Must come before . */ -#include -#include - -#include - - -static int -do_fcntl (int fd, int cmd, void *arg) -{ - if (cmd != F_GETOWN) - return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg); - - INTERNAL_SYSCALL_DECL (err); - struct f_owner_ex fex; - int res = INTERNAL_SYSCALL (fcntl64, err, 3, fd, F_GETOWN_EX, &fex); - if (!INTERNAL_SYSCALL_ERROR_P (res, err)) - return fex.type == F_OWNER_GID ? -fex.pid : fex.pid; - - __set_errno (INTERNAL_SYSCALL_ERRNO (res, err)); - return -1; -} - - -#ifndef NO_CANCELLATION -int -__fcntl_nocancel (int fd, int cmd, ...) -{ - va_list ap; - void *arg; - - va_start (ap, cmd); - arg = va_arg (ap, void *); - va_end (ap); - - return do_fcntl (fd, cmd, arg); -} -#endif - - -int -__libc_fcntl (int fd, int cmd, ...) -{ - va_list ap; - void *arg; - - va_start (ap, cmd); - arg = va_arg (ap, void *); - va_end (ap); - - if (SINGLE_THREAD_P || cmd != F_SETLKW) - return do_fcntl (fd, cmd, arg); - - int oldtype = LIBC_CANCEL_ASYNC (); - - int result = do_fcntl (fd, cmd, arg); - - LIBC_CANCEL_RESET (oldtype); - - return result; -} -libc_hidden_def (__libc_fcntl) - -weak_alias (__libc_fcntl, __fcntl) -libc_hidden_weak (__fcntl) -weak_alias (__libc_fcntl, fcntl) diff --git a/sysdeps/unix/sysv/linux/hppa/fcntl.c b/sysdeps/unix/sysv/linux/hppa/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/hppa/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/i386/fcntl.c b/sysdeps/unix/sysv/linux/i386/fcntl.c deleted file mode 100644 index b0a5783..0000000 --- a/sysdeps/unix/sysv/linux/i386/fcntl.c +++ /dev/null @@ -1,61 +0,0 @@ -/* Copyright (C) 2000-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#include /* Must come before . */ -#include -#include - -#include - -#ifndef NO_CANCELLATION -int -__fcntl_nocancel (int fd, int cmd, ...) -{ - va_list ap; - void *arg; - - va_start (ap, cmd); - arg = va_arg (ap, void *); - va_end (ap); - - return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg); -} -#endif /* NO_CANCELLATION */ - - -int -__libc_fcntl (int fd, int cmd, ...) -{ - va_list ap; - void *arg; - - va_start (ap, cmd); - arg = va_arg (ap, void *); - va_end (ap); - - if ((cmd != F_SETLKW) && (cmd != F_SETLKW64)) - return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg); - - return SYSCALL_CANCEL (fcntl64, fd, cmd, arg); -} -libc_hidden_def (__libc_fcntl) - -weak_alias (__libc_fcntl, __fcntl) -libc_hidden_weak (__fcntl) -weak_alias (__libc_fcntl, fcntl) diff --git a/sysdeps/unix/sysv/linux/m68k/fcntl.c b/sysdeps/unix/sysv/linux/m68k/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/m68k/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/microblaze/fcntl.c b/sysdeps/unix/sysv/linux/microblaze/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/microblaze/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fcntl.c b/sysdeps/unix/sysv/linux/mips/mips32/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/mips/mips32/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c b/sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c b/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c index 85ae8a2..d382d08 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c @@ -15,51 +15,18 @@ License along with the GNU C Library; if not, see . */ -#include -#include -#include /* Must come before . */ +#include #include -#include -#include - - -#ifndef NO_CANCELLATION -int -__fcntl_nocancel (int fd, int cmd, ...) +static inline int +__libc_fcntl_adjust_cmd (int cmd) { - va_list ap; - void *arg; - - va_start (ap, cmd); - arg = va_arg (ap, void *); - va_end (ap); - - return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg); -} -#endif - - -int -__libc_fcntl (int fd, int cmd, ...) -{ - va_list ap; - void *arg; - - va_start (ap, cmd); - arg = va_arg (ap, void *); - va_end (ap); - if (cmd >= F_GETLK64 && cmd <= F_SETLKW64) cmd -= F_GETLK64 - F_GETLK; - - if (cmd != F_SETLKW) - return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg); - - return SYSCALL_CANCEL (fcntl, fd, cmd, arg); + return cmd; } -libc_hidden_def (__libc_fcntl) -weak_alias (__libc_fcntl, __fcntl) -libc_hidden_weak (__fcntl) -weak_alias (__libc_fcntl, fcntl) +#define FCNTL_ADJUST_CMD(__cmd) \ + __libc_fcntl_adjust_cmd (__cmd) + +#include diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c b/sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/s390/s390-32/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/sh/fcntl.c b/sysdeps/unix/sysv/linux/sh/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/sh/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c b/sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c deleted file mode 100644 index ea951bc..0000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/fcntl.c +++ /dev/null @@ -1 +0,0 @@ -#include From patchwork Tue May 23 18:26:00 2017 Content-Type: text/plain; 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[209.132.180.131]) by mx.google.com with ESMTPS id u69si21289212pgb.168.2017.05.23.11.27.17 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 May 2017 11:27:17 -0700 (PDT) Received-SPF: pass (google.com: domain of libc-alpha-return-79669-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) client-ip=209.132.180.131; Authentication-Results: mx.google.com; dkim=pass header.i=@sourceware.org; spf=pass (google.com: domain of libc-alpha-return-79669-patch=linaro.org@sourceware.org designates 209.132.180.131 as permitted sender) smtp.mailfrom=libc-alpha-return-79669-patch=linaro.org@sourceware.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=cpwTQDvTPEdXkc0B5KvVx21BIj1fHWI Mqx7rqmSf1bq+h3TSf8s6NHENUcTnzaMuWvA2DOoVWZkfJR2XfAjraHAmUouN5GV yaIeF7+5dkLtRrbL4p6C4574f8/X3npKIJyFIw0PhlsLyIbgz6gGuTR0Ko0wK9T0 mOCVz9xHahs4= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=pq62OPveD8xUnVXA4R9sRtb2fpQ=; b=I6uBP H3+7nw4tm4bJVlbw4iyHyHc8HgEX3GmBkphmoSuol+qosgYRfMFvxvC919sWuL4T PUW7g95lDPPDekomXSiIgN0upnPbHtAzlugZa0FzA+hsGmU+fp6JPVGTklxHPx6x SI7SZbULqI46aICE+kPHUkQ6h3OXTFdcwRLrcQ= Received: (qmail 74975 invoked by alias); 23 May 2017 18:26:38 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 74853 invoked by uid 89); 23 May 2017 18:26:38 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.9 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy=ear, Gas, rich, twelve X-HELO: mail-qk0-f179.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=6YfK7CDoOwf3Wq21icDRUYZbxPxSu+SmaauAclxxHJ8=; b=WlCphTS8/8ptSk5Bng8aDSExvGEG13G84WOIaAaCUK+ruC6LSIlErbXAKSusRdwhIO tuGK7+KoA//APUNlSG2uhQKcxFd0AFoc670O7RuGSw4n76BPa7Jvdjq2IqILqwoB+YFW IeiHAEZoZklMqIiUMcnY4SaotjS46otWLcg3EqAaIAkviRersNgGFNM639g576JRpEbM rFTHd4ZD3QYzyi56V2OFdt7D6m2+hkszt0U8+/PIpyYAayX20mF/53rS8KX0tdySyzEO V2WuXb8+u/VhdUvwlQErDIM7D8cIFHsbC81XzzQnNF3UQOzMLRLWxiN53CNfEzrO9pET CMLw== X-Gm-Message-State: AODbwcCFCBZOfUGfBLHRTlumppBcjA0iI5FOdoHLcCfwNNI31KEBKuce a9fDHEOoJYuXXLxP5kFBxA== X-Received: by 10.55.198.197 with SMTP id s66mr29770139qkl.179.1495563976419; Tue, 23 May 2017 11:26:16 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 5/5] Remove cancellation support for syscall generation Date: Tue, 23 May 2017 15:26:00 -0300 Message-Id: <1495563960-669-6-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> References: <1495563960-669-1-git-send-email-adhemerval.zanella@linaro.org> This patch removes the cancellation mark from the auto-generation syscall script. Now all the cancellable syscalls are done throught C code using the SYSCALL_CANCEL macro. It simplifies the assembly required to each architecture port, since the SYSCALL_CANCEL uses the already defined INLINE_SYSCALL macros, and allows a more straigh fix on cancellation machanism (since no more specific assembly fixes will be required). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/make-syscalls.sh: Remove cancellable tagging for syscall definitions. * sysdeps/unix/syscall-template.S (SYSCALL_CANCELLABLE): Remove definition. * sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (__local_enable_asynccancel): Likewise. [IS_IN (libpthread)] (__local_disable_asynccancel): Likewise. [IS_IN (libc)] (__local_enable_asynccancel): Likewise. [IS_IN (libc)] (__local_enable_asynccancel): Likewise. [IS_IN (librt)] (__local_disable_asynccancel): Likewise. [IS_IN (librt)] (__local_disable_asynccancel): Likewise. (CENABLE): Likewise. (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/arm/sysdep-cancel.h (PSEUDO): Remove defintion. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/mips/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Remove file. * sysdeps/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: New file. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/sh/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Remove file. * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: New file. * sysdeps/unix/sysv/linux/tile/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h (PSEUDO): Remove definition. (PSEUDO_END): Likewise. [IS_IN (libpthread)] (CENABLE): Likewise. [IS_IN (libpthread)] (CDISABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (libc)] (CENABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [IS_IN (librt)] (CDISABLE): Likewise. [__ASSEMBLER__] (SINGLE_THREAD_P): Likewise. --- ChangeLog | 173 ++++++++++++++ sysdeps/unix/make-syscalls.sh | 4 - sysdeps/unix/syscall-template.S | 7 +- sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h | 87 +------ sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h | 131 +---------- sysdeps/unix/sysv/linux/arm/sysdep-cancel.h | 197 +--------------- sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h | 236 +------------------ sysdeps/unix/sysv/linux/i386/sysdep-cancel.h | 119 +--------- sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h | 194 +--------------- sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h | 108 +-------- sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h | 116 +--------- .../unix/sysv/linux/mips/mips64/sysdep-cancel.h | 249 --------------------- sysdeps/unix/sysv/linux/mips/sysdep-cancel.h | 159 +------------ sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h | 110 +-------- .../sysv/linux/powerpc/powerpc32/sysdep-cancel.h | 118 ---------- .../sysv/linux/powerpc/powerpc64/sysdep-cancel.h | 147 ------------ sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h | 38 ++++ .../unix/sysv/linux/s390/s390-32/sysdep-cancel.h | 105 +-------- .../unix/sysv/linux/s390/s390-64/sysdep-cancel.h | 109 +-------- sysdeps/unix/sysv/linux/sh/sysdep-cancel.h | 136 +---------- .../unix/sysv/linux/sparc/sparc32/sysdep-cancel.h | 111 --------- .../unix/sysv/linux/sparc/sparc64/sysdep-cancel.h | 109 --------- sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h | 38 ++++ sysdeps/unix/sysv/linux/tile/sysdep-cancel.h | 123 +--------- sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h | 62 +---- 25 files changed, 305 insertions(+), 2681 deletions(-) delete mode 100644 sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h create mode 100644 sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h delete mode 100644 sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h create mode 100644 sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h -- 2.7.4 diff --git a/sysdeps/unix/make-syscalls.sh b/sysdeps/unix/make-syscalls.sh index 123553c..042cfac 100644 --- a/sysdeps/unix/make-syscalls.sh +++ b/sysdeps/unix/make-syscalls.sh @@ -12,7 +12,6 @@ # # Syscall Signature Prefixes: # -# C: cancellable (i.e., this syscall is a cancellation point) # E: errno and return value are not set by the call # V: errno is not set, but errno or zero (success) is returned from the call # @@ -171,11 +170,9 @@ while read file srcfile caller syscall args strong weak; do ;; esac - cancellable=0 noerrno=0 errval=0 case $args in - C*) cancellable=1; args=`echo $args | sed 's/C:\?//'`;; E*) noerrno=1; args=`echo $args | sed 's/E:\?//'`;; V*) errval=1; args=`echo $args | sed 's/V:\?//'`;; esac @@ -258,7 +255,6 @@ while read file srcfile caller syscall args strong weak; do (echo '#define SYSCALL_NAME $syscall'; \\ echo '#define SYSCALL_NARGS $nargs'; \\ echo '#define SYSCALL_SYMBOL $strong'; \\ - echo '#define SYSCALL_CANCELLABLE $cancellable'; \\ echo '#define SYSCALL_NOERRNO $noerrno'; \\ echo '#define SYSCALL_ERRVAL $errval'; \\ echo '#include '; \\" diff --git a/sysdeps/unix/syscall-template.S b/sysdeps/unix/syscall-template.S index 4993ff5..d4584a9 100644 --- a/sysdeps/unix/syscall-template.S +++ b/sysdeps/unix/syscall-template.S @@ -27,7 +27,6 @@ SYSCALL_NAME syscall name SYSCALL_NARGS number of arguments this call takes SYSCALL_SYMBOL primary symbol name - SYSCALL_CANCELLABLE 1 if the call is a cancelation point SYSCALL_NOERRNO 1 to define a no-errno version (see below) SYSCALL_ERRVAL 1 to define an error-value version (see below) @@ -41,11 +40,7 @@ instructions long and the untrained eye might not distinguish them from some compiled code that inexplicably lacks source line information. */ -#if SYSCALL_CANCELLABLE -# include -#else -# include -#endif +#include /* This indirection is needed so that SYMBOL gets macro-expanded. */ #define syscall_hidden_def(SYMBOL) hidden_def (SYMBOL) diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h index 4be2259..d39b6a2 100644 --- a/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h @@ -24,102 +24,23 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ -ENTRY (__##syscall_name##_nocancel); \ -.Lpseudo_nocancel: \ - DO_CALL (syscall_name, args); \ -.Lpseudo_finish: \ - cmn x0, 4095; \ - b.cs .Lsyscall_error; \ - .subsection 2; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ -ENTRY (name); \ - SINGLE_THREAD_P(16); \ - cbz w16, .Lpseudo_nocancel; \ - /* Setup common stack frame no matter the number of args. \ - Also save the first arg, since it's basically free. */ \ - stp x30, x0, [sp, -64]!; \ - cfi_adjust_cfa_offset (64); \ - cfi_rel_offset (x30, 0); \ - DOCARGS_##args; /* save syscall args around CENABLE. */ \ - CENABLE; \ - mov x16, x0; /* save mask around syscall. */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL (syscall_name, args); \ - str x0, [sp, 8]; /* save result around CDISABLE. */ \ - mov x0, x16; /* restore mask for CDISABLE. */ \ - CDISABLE; \ - /* Break down the stack frame, restoring result at once. */ \ - ldp x30, x0, [sp], 64; \ - cfi_adjust_cfa_offset (-64); \ - cfi_restore (x30); \ - b .Lpseudo_finish; \ - cfi_endproc; \ - .size name, .-name; \ - .previous - -# undef PSEUDO_END -# define PSEUDO_END(name) \ - SYSCALL_ERROR_HANDLER; \ - cfi_endproc - -# define DOCARGS_0 -# define DOCARGS_1 -# define DOCARGS_2 str x1, [sp, 16] -# define DOCARGS_3 stp x1, x2, [sp, 16] -# define DOCARGS_4 DOCARGS_3; str x3, [sp, 32] -# define DOCARGS_5 DOCARGS_3; stp x3, x4, [sp, 32] -# define DOCARGS_6 DOCARGS_5; str x5, [sp, 48] - -# define UNDOCARGS_0 -# define UNDOCARGS_1 ldr x0, [sp, 8] -# define UNDOCARGS_2 ldp x0, x1, [sp, 8] -# define UNDOCARGS_3 UNDOCARGS_1; ldp x1, x2, [sp, 16] -# define UNDOCARGS_4 UNDOCARGS_2; ldp x2, x3, [sp, 24] -# define UNDOCARGS_5 UNDOCARGS_3; ldp x3, x4, [sp, 32] -# define UNDOCARGS_6 UNDOCARGS_4; ldp x4, x5, [sp, 40] - # if IS_IN (libpthread) -# define CENABLE bl __pthread_enable_asynccancel -# define CDISABLE bl __pthread_disable_asynccancel # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) -# define CENABLE bl __libc_enable_asynccancel -# define CDISABLE bl __libc_disable_asynccancel # define __local_multiple_threads __libc_multiple_threads -# elif IS_IN (librt) -# define CENABLE bl __librt_enable_asynccancel -# define CDISABLE bl __librt_disable_asynccancel -# else -# error Unsupported library # endif # if IS_IN (libpthread) || IS_IN (libc) -# ifndef __ASSEMBLER__ extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P(R) \ - adrp x##R, __local_multiple_threads; \ - ldr w##R, [x##R, :lo12:__local_multiple_threads] -# endif +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) # else /* There is no __local_multiple_threads for librt, so use the TCB. */ -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(R) \ - mrs x##R, tpidr_el0; \ - sub x##R, x##R, PTHREAD_SIZEOF; \ - ldr w##R, [x##R, PTHREAD_MULTIPLE_THREADS_OFFSET] -# endif # endif -#elif !defined __ASSEMBLER__ +#else /* For rtld, et cetera. */ # define SINGLE_THREAD_P 1 @@ -127,8 +48,6 @@ extern int __local_multiple_threads attribute_hidden; #endif -#ifndef __ASSEMBLER__ # define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h b/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h index 66d6962..366cf31 100644 --- a/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h @@ -17,147 +17,24 @@ #include #include -#ifndef __ASSEMBLER__ -# include -#endif +#include #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -/* ??? Assumes that nothing comes between PSEUDO and PSEUDO_END - besides "ret". */ - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .globl __##syscall_name##_nocancel; \ - .type __##syscall_name##_nocancel, @function; \ - .usepv __##syscall_name##_nocancel, std; \ - .align 4; \ - cfi_startproc; \ -__LABEL(__##syscall_name##_nocancel) \ - ldgp gp, 0(pv); \ - PSEUDO_PROF; \ -__LABEL($pseudo_nocancel) \ - PSEUDO_PREPARE_ARGS; \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; \ - bne a3, SYSCALL_ERROR_LABEL; \ -__LABEL($pseudo_ret) \ - .subsection 2; \ - .size __##syscall_name##_nocancel, .-__##syscall_name##_nocancel; \ - .globl name; \ - .type name, @function; \ - .usepv name, std; \ - .align 4; \ - cfi_startproc; \ -__LABEL(name) \ - ldgp gp, 0(pv); \ - PSEUDO_PROF; \ - SINGLE_THREAD_P(t0); \ - beq t0, $pseudo_nocancel; \ - subq sp, 64, sp; \ - cfi_def_cfa_offset(64); \ - stq ra, 0(sp); \ - cfi_offset(ra, -64); \ - SAVE_ARGS_##args; \ - CENABLE; \ - LOAD_ARGS_##args; \ - /* Save the CENABLE return value in RA. That register \ - is preserved across syscall and the real return \ - address is saved on the stack. */ \ - mov v0, ra; \ - lda v0, SYS_ify(syscall_name); \ - call_pal PAL_callsys; \ - stq v0, 8(sp); \ - mov ra, a0; \ - bne a3, $multi_error; \ - CDISABLE; \ - ldq ra, 0(sp); \ - ldq v0, 8(sp); \ - addq sp, 64, sp; \ - cfi_remember_state; \ - cfi_restore(ra); \ - cfi_def_cfa_offset(0); \ - ret; \ - cfi_restore_state; \ -__LABEL($multi_error) \ - CDISABLE; \ - ldq ra, 0(sp); \ - ldq v0, 8(sp); \ - addq sp, 64, sp; \ - cfi_restore(ra); \ - cfi_def_cfa_offset(0); \ - SYSCALL_ERROR_FALLTHRU; \ - SYSCALL_ERROR_HANDLER; \ - cfi_endproc; \ - .previous - -# undef PSEUDO_END -# define PSEUDO_END(sym) \ - cfi_endproc; \ - .subsection 2; \ - .size sym, .-sym - -# define SAVE_ARGS_0 /* Nothing. */ -# define SAVE_ARGS_1 SAVE_ARGS_0; stq a0, 8(sp) -# define SAVE_ARGS_2 SAVE_ARGS_1; stq a1, 16(sp) -# define SAVE_ARGS_3 SAVE_ARGS_2; stq a2, 24(sp) -# define SAVE_ARGS_4 SAVE_ARGS_3; stq a3, 32(sp) -# define SAVE_ARGS_5 SAVE_ARGS_4; stq a4, 40(sp) -# define SAVE_ARGS_6 SAVE_ARGS_5; stq a5, 48(sp) - -# define LOAD_ARGS_0 /* Nothing. */ -# define LOAD_ARGS_1 LOAD_ARGS_0; ldq a0, 8(sp) -# define LOAD_ARGS_2 LOAD_ARGS_1; ldq a1, 16(sp) -# define LOAD_ARGS_3 LOAD_ARGS_2; ldq a2, 24(sp) -# define LOAD_ARGS_4 LOAD_ARGS_3; ldq a3, 32(sp) -# define LOAD_ARGS_5 LOAD_ARGS_4; ldq a4, 40(sp) -# define LOAD_ARGS_6 LOAD_ARGS_5; ldq a5, 48(sp) - # if IS_IN (libpthread) -# define __local_enable_asynccancel __pthread_enable_asynccancel -# define __local_disable_asynccancel __pthread_disable_asynccancel # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) -# define __local_enable_asynccancel __libc_enable_asynccancel -# define __local_disable_asynccancel __libc_disable_asynccancel # define __local_multiple_threads __libc_multiple_threads -# elif IS_IN (librt) -# define __local_enable_asynccancel __librt_enable_asynccancel -# define __local_disable_asynccancel __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -# ifdef PIC -# define CENABLE bsr ra, __local_enable_asynccancel !samegp -# define CDISABLE bsr ra, __local_disable_asynccancel !samegp -# else -# define CENABLE jsr ra, __local_enable_asynccancel; ldgp ra, 0(gp) -# define CDISABLE jsr ra, __local_disable_asynccancel; ldgp ra, 0(gp) # endif # if IS_IN (libpthread) || IS_IN (libc) -# ifndef __ASSEMBLER__ extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (__local_multiple_threads == 0, 1) -# elif defined(PIC) -# define SINGLE_THREAD_P(reg) ldl reg, __local_multiple_threads(gp) !gprel -# else -# define SINGLE_THREAD_P(reg) \ - ldah reg, __local_multiple_threads(gp) !gprelhigh; \ - ldl reg, __local_multiple_threads(reg) !gprellow -# endif # else -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - call_pal PAL_rduniq; \ - ldl reg, MULTIPLE_THREADS_OFFSET($0) -# endif # endif #else @@ -167,8 +44,6 @@ extern int __local_multiple_threads attribute_hidden; #endif -#ifndef __ASSEMBLER__ # define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h b/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h index de12acf..738e749 100644 --- a/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h @@ -23,210 +23,23 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -/* NOTE: We do mark syscalls with unwind annotations, for the benefit of - cancellation; but they're really only accurate at the point of the - syscall. The ARM unwind directives are not rich enough without adding - a custom personality function. */ - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (__##syscall_name##_nocancel); \ - CFI_SECTIONS; \ - DO_CALL (syscall_name, args); \ - cmn r0, $4096; \ - PSEUDO_RET; \ - END (__##syscall_name##_nocancel); \ - ENTRY (name); \ - SINGLE_THREAD_P; \ - DOARGS_##args; \ - bne .Lpseudo_cancel; \ - cfi_remember_state; \ - ldr r7, =SYS_ify (syscall_name); \ - swi 0x0; \ - UNDOARGS_##args; \ - cmn r0, $4096; \ - PSEUDO_RET; \ - cfi_restore_state; \ - .Lpseudo_cancel: \ - .fnstart; /* matched by the .fnend in UNDOARGS below. */ \ - DOCARGS_##args; /* save syscall args etc. around CENABLE. */ \ - CENABLE; \ - mov ip, r0; /* put mask in safe place. */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - ldr r7, =SYS_ify (syscall_name); \ - swi 0x0; /* do the call. */ \ - mov r7, r0; /* save syscall return value. */ \ - mov r0, ip; /* get mask back. */ \ - CDISABLE; \ - mov r0, r7; /* retrieve return value. */ \ - RESTORE_LR_##args; \ - UNDOARGS_##args; \ - cmn r0, $4096 - -/* DOARGS pushes eight bytes on the stack for five arguments, twelve bytes for - six arguments, and four bytes for fewer. In order to preserve doubleword - alignment, sometimes we must save an extra register. */ - -# define RESTART_UNWIND \ - .fnend; \ - .fnstart; \ - .save {r7}; \ - .save {lr} - -# define DOCARGS_0 \ - .save {r7}; \ - push {lr}; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (lr, 0); \ - .save {lr} -# define UNDOCARGS_0 -# define RESTORE_LR_0 \ - pop {lr}; \ - cfi_adjust_cfa_offset (-4); \ - cfi_restore (lr) - -# define DOCARGS_1 \ - .save {r7}; \ - push {r0, r1, lr}; \ - cfi_adjust_cfa_offset (12); \ - cfi_rel_offset (lr, 8); \ - .save {lr}; \ - .pad #8 -# define UNDOCARGS_1 \ - ldr r0, [sp], #8; \ - cfi_adjust_cfa_offset (-8); \ - RESTART_UNWIND -# define RESTORE_LR_1 \ - RESTORE_LR_0 - -# define DOCARGS_2 \ - .save {r7}; \ - push {r0, r1, lr}; \ - cfi_adjust_cfa_offset (12); \ - cfi_rel_offset (lr, 8); \ - .save {lr}; \ - .pad #8 -# define UNDOCARGS_2 \ - pop {r0, r1}; \ - cfi_adjust_cfa_offset (-8); \ - RESTART_UNWIND -# define RESTORE_LR_2 \ - RESTORE_LR_0 - -# define DOCARGS_3 \ - .save {r7}; \ - push {r0, r1, r2, r3, lr}; \ - cfi_adjust_cfa_offset (20); \ - cfi_rel_offset (lr, 16); \ - .save {lr}; \ - .pad #16 -# define UNDOCARGS_3 \ - pop {r0, r1, r2, r3}; \ - cfi_adjust_cfa_offset (-16); \ - RESTART_UNWIND -# define RESTORE_LR_3 \ - RESTORE_LR_0 - -# define DOCARGS_4 \ - .save {r7}; \ - push {r0, r1, r2, r3, lr}; \ - cfi_adjust_cfa_offset (20); \ - cfi_rel_offset (lr, 16); \ - .save {lr}; \ - .pad #16 -# define UNDOCARGS_4 \ - pop {r0, r1, r2, r3}; \ - cfi_adjust_cfa_offset (-16); \ - RESTART_UNWIND -# define RESTORE_LR_4 \ - RESTORE_LR_0 - -/* r4 is only stmfd'ed for correct stack alignment. */ -# define DOCARGS_5 \ - .save {r4, r7}; \ - push {r0, r1, r2, r3, r4, lr}; \ - cfi_adjust_cfa_offset (24); \ - cfi_rel_offset (lr, 20); \ - .save {lr}; \ - .pad #20 -# define UNDOCARGS_5 \ - pop {r0, r1, r2, r3}; \ - cfi_adjust_cfa_offset (-16); \ - .fnend; \ - .fnstart; \ - .save {r4, r7}; \ - .save {lr}; \ - .pad #4 -# define RESTORE_LR_5 \ - pop {r4, lr}; \ - cfi_adjust_cfa_offset (-8); \ - /* r4 will be marked as restored later. */ \ - cfi_restore (lr) - -# define DOCARGS_6 \ - .save {r4, r5, r7}; \ - push {r0, r1, r2, r3, lr}; \ - cfi_adjust_cfa_offset (20); \ - cfi_rel_offset (lr, 16); \ - .save {lr}; \ - .pad #16 -# define UNDOCARGS_6 \ - pop {r0, r1, r2, r3}; \ - cfi_adjust_cfa_offset (-16); \ - .fnend; \ - .fnstart; \ - .save {r4, r5, r7}; \ - .save {lr}; -# define RESTORE_LR_6 \ - RESTORE_LR_0 - # if IS_IN (libpthread) -# define CENABLE bl PLTJMP(__pthread_enable_asynccancel) -# define CDISABLE bl PLTJMP(__pthread_disable_asynccancel) # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) -# define CENABLE bl PLTJMP(__libc_enable_asynccancel) -# define CDISABLE bl PLTJMP(__libc_disable_asynccancel) # define __local_multiple_threads __libc_multiple_threads -# elif IS_IN (librt) -# define CENABLE bl PLTJMP(__librt_enable_asynccancel) -# define CDISABLE bl PLTJMP(__librt_disable_asynccancel) -# else -# error Unsupported library # endif # if IS_IN (libpthread) || IS_IN (libc) -# ifndef __ASSEMBLER__ extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - LDST_PCREL(ldr, ip, ip, __local_multiple_threads); \ - teq ip, #0 -# endif +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) # else /* There is no __local_multiple_threads for librt, so use the TCB. */ -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - push {r0, lr}; \ - cfi_adjust_cfa_offset (8); \ - cfi_rel_offset (lr, 4); \ - GET_TLS (lr); \ - NEGOFF_ADJ_BASE (r0, MULTIPLE_THREADS_OFFSET); \ - ldr ip, NEGOFF_OFF1 (r0, MULTIPLE_THREADS_OFFSET); \ - pop {r0, lr}; \ - cfi_adjust_cfa_offset (-8); \ - cfi_restore (lr); \ - teq ip, #0 -# endif # endif -#elif !defined __ASSEMBLER__ +#else /* For rtld, et cetera. */ # define SINGLE_THREAD_P 1 @@ -234,8 +47,6 @@ extern int __local_multiple_threads attribute_hidden; #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h index 5ea2972..a6189a7 100644 --- a/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h @@ -23,226 +23,6 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# ifndef NO_ERROR -# define NO_ERROR -0x1000 -# endif - -/* The syscall cancellation mechanism requires userspace - assistance, the following code does roughly this: - - do arguments (read arg5 and arg6 to registers) - setup frame - - check if there are threads, yes jump to pseudo_cancel - - unthreaded: - syscall - check syscall return (jump to pre_end) - set errno - set return to -1 - (jump to pre_end) - - pseudo_cancel: - cenable - syscall - cdisable - check syscall return (jump to pre_end) - set errno - set return to -1 - - pre_end - restore stack - - It is expected that 'ret' and 'END' macros will - append an 'undo arguments' and 'return' to the - this PSEUDO macro. */ - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - ENTRY (__##syscall_name##_nocancel) \ - DOARGS_##args ASM_LINE_SEP \ - stwm TREG, 64(%sp) ASM_LINE_SEP \ - .cfi_offset TREG, 0 ASM_LINE_SEP \ - .cfi_adjust_cfa_offset 64 ASM_LINE_SEP \ - stw %sp, -4(%sp) ASM_LINE_SEP \ - .cfi_offset 30, -4 ASM_LINE_SEP \ - stw %r19, -32(%sp) ASM_LINE_SEP \ - .cfi_offset 19, -32 ASM_LINE_SEP \ - /* Save r19 */ ASM_LINE_SEP \ - SAVE_PIC(TREG) ASM_LINE_SEP \ - /* Do syscall, delay loads # */ ASM_LINE_SEP \ - ble 0x100(%sr2,%r0) ASM_LINE_SEP \ - ldi SYS_ify (syscall_name), %r20 /* delay */ ASM_LINE_SEP \ - ldi NO_ERROR,%r1 ASM_LINE_SEP \ - cmpb,>>=,n %r1,%ret0,L(pre_nc_end) ASM_LINE_SEP \ - /* Restore r19 from TREG */ ASM_LINE_SEP \ - LOAD_PIC(TREG) /* delay */ ASM_LINE_SEP \ - SYSCALL_ERROR_HANDLER ASM_LINE_SEP \ - /* Use TREG for temp storage */ ASM_LINE_SEP \ - copy %ret0, TREG /* delay */ ASM_LINE_SEP \ - /* OPTIMIZE: Don't reload r19 */ ASM_LINE_SEP \ - /* do a -1*syscall_ret0 */ ASM_LINE_SEP \ - sub %r0, TREG, TREG ASM_LINE_SEP \ - /* Store into errno location */ ASM_LINE_SEP \ - stw TREG, 0(%sr0,%ret0) ASM_LINE_SEP \ - /* return -1 as error */ ASM_LINE_SEP \ - ldi -1, %ret0 ASM_LINE_SEP \ -L(pre_nc_end): ASM_LINE_SEP \ - /* No need to LOAD_PIC */ ASM_LINE_SEP \ - /* Undo frame */ ASM_LINE_SEP \ - ldwm -64(%sp),TREG ASM_LINE_SEP \ - .cfi_adjust_cfa_offset -64 ASM_LINE_SEP \ - /* Restore rp before exit */ ASM_LINE_SEP \ - ldw -20(%sp), %rp ASM_LINE_SEP \ - .cfi_restore 2 ASM_LINE_SEP \ - ret ASM_LINE_SEP \ - END(__##syscall_name##_nocancel) ASM_LINE_SEP \ - /**********************************************/ASM_LINE_SEP \ - ENTRY (name) \ - DOARGS_##args ASM_LINE_SEP \ - stwm TREG, 64(%sp) ASM_LINE_SEP \ - .cfi_adjust_cfa_offset 64 ASM_LINE_SEP \ - stw %sp, -4(%sp) ASM_LINE_SEP \ - .cfi_offset 30, -4 ASM_LINE_SEP \ - stw %r19, -32(%sp) ASM_LINE_SEP \ - .cfi_offset 19, -32 ASM_LINE_SEP \ - /* Done setting up frame, continue... */ ASM_LINE_SEP \ - SINGLE_THREAD_P ASM_LINE_SEP \ - cmpib,<>,n 0,%ret0,L(pseudo_cancel) ASM_LINE_SEP \ -L(unthreaded): ASM_LINE_SEP \ - /* Save r19 */ ASM_LINE_SEP \ - SAVE_PIC(TREG) ASM_LINE_SEP \ - /* Do syscall, delay loads # */ ASM_LINE_SEP \ - ble 0x100(%sr2,%r0) ASM_LINE_SEP \ - ldi SYS_ify (syscall_name), %r20 /* delay */ ASM_LINE_SEP \ - ldi NO_ERROR,%r1 ASM_LINE_SEP \ - cmpb,>>=,n %r1,%ret0,L(pre_end) ASM_LINE_SEP \ - /* Restore r19 from TREG */ ASM_LINE_SEP \ - LOAD_PIC(TREG) /* delay */ ASM_LINE_SEP \ - SYSCALL_ERROR_HANDLER ASM_LINE_SEP \ - /* Use TREG for temp storage */ ASM_LINE_SEP \ - copy %ret0, TREG /* delay */ ASM_LINE_SEP \ - /* OPTIMIZE: Don't reload r19 */ ASM_LINE_SEP \ - /* do a -1*syscall_ret0 */ ASM_LINE_SEP \ - sub %r0, TREG, TREG ASM_LINE_SEP \ - /* Store into errno location */ ASM_LINE_SEP \ - stw TREG, 0(%sr0,%ret0) ASM_LINE_SEP \ - b L(pre_end) ASM_LINE_SEP \ - /* return -1 as error */ ASM_LINE_SEP \ - ldi -1, %ret0 /* delay */ ASM_LINE_SEP \ -L(pseudo_cancel): ASM_LINE_SEP \ - PUSHARGS_##args /* Save args */ ASM_LINE_SEP \ - /* Save r19 into TREG */ ASM_LINE_SEP \ - CENABLE /* FUNC CALL */ ASM_LINE_SEP \ - SAVE_PIC(TREG) /* delay */ ASM_LINE_SEP \ - /* restore syscall args */ ASM_LINE_SEP \ - POPARGS_##args ASM_LINE_SEP \ - /* save mask from cenable (use stub rp slot) */ ASM_LINE_SEP \ - stw %ret0, -24(%sp) ASM_LINE_SEP \ - /* ... SYSCALL ... */ ASM_LINE_SEP \ - ble 0x100(%sr2,%r0) ASM_LINE_SEP \ - ldi SYS_ify (syscall_name), %r20 /* delay */ ASM_LINE_SEP \ - /* ............... */ ASM_LINE_SEP \ - LOAD_PIC(TREG) ASM_LINE_SEP \ - /* pass mask as arg0 to cdisable */ ASM_LINE_SEP \ - ldw -24(%sp), %r26 ASM_LINE_SEP \ - CDISABLE ASM_LINE_SEP \ - stw %ret0, -24(%sp) /* delay */ ASM_LINE_SEP \ - /* Restore syscall return */ ASM_LINE_SEP \ - ldw -24(%sp), %ret0 ASM_LINE_SEP \ - /* compare error */ ASM_LINE_SEP \ - ldi NO_ERROR,%r1 ASM_LINE_SEP \ - /* branch if no error */ ASM_LINE_SEP \ - cmpb,>>=,n %r1,%ret0,L(pre_end) ASM_LINE_SEP \ - LOAD_PIC(TREG) /* cond. nullify */ ASM_LINE_SEP \ - copy %ret0, TREG /* save syscall return */ ASM_LINE_SEP \ - SYSCALL_ERROR_HANDLER ASM_LINE_SEP \ - /* make syscall res value positive */ ASM_LINE_SEP \ - sub %r0, TREG, TREG /* delay */ ASM_LINE_SEP \ - /* No need to LOAD_PIC */ ASM_LINE_SEP \ - /* store into errno location */ ASM_LINE_SEP \ - stw TREG, 0(%sr0,%ret0) ASM_LINE_SEP \ - /* return -1 */ ASM_LINE_SEP \ - ldi -1, %ret0 ASM_LINE_SEP \ -L(pre_end): ASM_LINE_SEP \ - /* No need to LOAD_PIC */ ASM_LINE_SEP \ - /* Undo frame */ ASM_LINE_SEP \ - ldwm -64(%sp),TREG ASM_LINE_SEP \ - .cfi_adjust_cfa_offset -64 ASM_LINE_SEP \ - /* Restore rp before exit */ ASM_LINE_SEP \ - ldw -20(%sp), %rp ASM_LINE_SEP \ - .cfi_restore 2 ASM_LINE_SEP - -/* Save arguments into our frame */ -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 stw %r26, -36(%sr0,%sp) ASM_LINE_SEP \ - .cfi_offset 26, -36 ASM_LINE_SEP -# define PUSHARGS_2 PUSHARGS_1 stw %r25, -40(%sr0,%sp) ASM_LINE_SEP \ - .cfi_offset 25, -40 ASM_LINE_SEP -# define PUSHARGS_3 PUSHARGS_2 stw %r24, -44(%sr0,%sp) ASM_LINE_SEP \ - .cfi_offset 24, -44 ASM_LINE_SEP -# define PUSHARGS_4 PUSHARGS_3 stw %r23, -48(%sr0,%sp) ASM_LINE_SEP \ - .cfi_offset 23, -48 ASM_LINE_SEP -# define PUSHARGS_5 PUSHARGS_4 stw %r22, -52(%sr0,%sp) ASM_LINE_SEP \ - .cfi_offset 22, -52 ASM_LINE_SEP -# define PUSHARGS_6 PUSHARGS_5 stw %r21, -56(%sr0,%sp) ASM_LINE_SEP \ - .cfi_offset 21, -56 ASM_LINE_SEP - -/* Bring them back from the stack */ -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 ldw -36(%sr0,%sp), %r26 ASM_LINE_SEP \ - .cfi_restore 26 ASM_LINE_SEP -# define POPARGS_2 POPARGS_1 ldw -40(%sr0,%sp), %r25 ASM_LINE_SEP \ - .cfi_restore 25 ASM_LINE_SEP -# define POPARGS_3 POPARGS_2 ldw -44(%sr0,%sp), %r24 ASM_LINE_SEP \ - .cfi_restore 24 ASM_LINE_SEP -# define POPARGS_4 POPARGS_3 ldw -48(%sr0,%sp), %r23 ASM_LINE_SEP \ - .cfi_restore 23 ASM_LINE_SEP -# define POPARGS_5 POPARGS_4 ldw -52(%sr0,%sp), %r22 ASM_LINE_SEP \ - .cfi_restore 22 ASM_LINE_SEP -# define POPARGS_6 POPARGS_5 ldw -56(%sr0,%sp), %r21 ASM_LINE_SEP \ - .cfi_restore 21 ASM_LINE_SEP - -# if IS_IN (libpthread) -# ifdef PIC -# define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP -# else -# define CENABLE .import __pthread_enable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __pthread_disable_asynccancel,code ASM_LINE_SEP \ - bl __pthread_disable_asynccancel,%r2 ASM_LINE_SEP -# endif -# elif IS_IN (libc) -# ifdef PIC -# define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \ - bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __libc_disable_asynccancel,code ASM_LINE_SEP \ - bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP -# else -# define CENABLE .import __libc_enable_asynccancel,code ASM_LINE_SEP \ - bl __libc_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __libc_disable_asynccancel,code ASM_LINE_SEP \ - bl __libc_disable_asynccancel,%r2 ASM_LINE_SEP -# endif -# elif IS_IN (librt) -# ifdef PIC -# define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \ - bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \ - bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP -# else -# define CENABLE .import __librt_enable_asynccancel,code ASM_LINE_SEP \ - bl __librt_enable_asynccancel,%r2 ASM_LINE_SEP -# define CDISABLE .import __librt_disable_asynccancel,code ASM_LINE_SEP \ - bl __librt_disable_asynccancel,%r2 ASM_LINE_SEP -# endif -# else -# error Unsupported library -# endif - # if IS_IN (libpthread) # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) @@ -253,17 +33,11 @@ L(pre_end): ASM_LINE_SEP \ # error Unsupported library # endif -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -/* Read the value of header.multiple_threads from the thread pointer */ -# define SINGLE_THREAD_P \ - mfctl %cr27, %ret0 ASM_LINE_SEP \ - ldw MULTIPLE_THREADS_THREAD_OFFSET(%sr0,%ret0),%ret0 ASM_LINE_SEP -# endif -#elif !defined __ASSEMBLER__ + +#else /* This code should never be used but we define it anyhow. */ # define SINGLE_THREAD_P (1) @@ -272,8 +46,6 @@ L(pre_end): ASM_LINE_SEP \ #endif /* IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) */ -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h index ebf6019..34e2b6f 100644 --- a/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h @@ -24,130 +24,17 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - cmpl $0, %gs:MULTIPLE_THREADS_OFFSET; \ - jne L(pseudo_cancel); \ - .type __##syscall_name##_nocancel,@function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - DO_CALL (syscall_name, args); \ - cmpl $-4095, %eax; \ - jae SYSCALL_ERROR_LABEL; \ - ret; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - L(pseudo_cancel): \ - CENABLE \ - SAVE_OLDTYPE_##args \ - PUSHCARGS_##args \ - DOCARGS_##args \ - movl $SYS_ify (syscall_name), %eax; \ - ENTER_KERNEL; \ - POPCARGS_##args; \ - POPSTATE_##args \ - cmpl $-4095, %eax; \ - jae SYSCALL_ERROR_LABEL - -# define SAVE_OLDTYPE_0 movl %eax, %ecx; -# define SAVE_OLDTYPE_1 SAVE_OLDTYPE_0 -# define SAVE_OLDTYPE_2 pushl %eax; cfi_adjust_cfa_offset (4); -# define SAVE_OLDTYPE_3 SAVE_OLDTYPE_2 -# define SAVE_OLDTYPE_4 SAVE_OLDTYPE_2 -# define SAVE_OLDTYPE_5 SAVE_OLDTYPE_2 -# define SAVE_OLDTYPE_6 SAVE_OLDTYPE_2 - -# define PUSHCARGS_0 /* No arguments to push. */ -# define DOCARGS_0 /* No arguments to frob. */ -# define POPCARGS_0 /* No arguments to pop. */ -# define _PUSHCARGS_0 /* No arguments to push. */ -# define _POPCARGS_0 /* No arguments to pop. */ - -# define PUSHCARGS_1 movl %ebx, %edx; cfi_register (ebx, edx); PUSHCARGS_0 -# define DOCARGS_1 _DOARGS_1 (4) -# define POPCARGS_1 POPCARGS_0; movl %edx, %ebx; cfi_restore (ebx); -# define _PUSHCARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (ebx, 0); _PUSHCARGS_0 -# define _POPCARGS_1 _POPCARGS_0; popl %ebx; \ - cfi_adjust_cfa_offset (-4); cfi_restore (ebx); - -# define PUSHCARGS_2 PUSHCARGS_1 -# define DOCARGS_2 _DOARGS_2 (12) -# define POPCARGS_2 POPCARGS_1 -# define _PUSHCARGS_2 _PUSHCARGS_1 -# define _POPCARGS_2 _POPCARGS_1 - -# define PUSHCARGS_3 _PUSHCARGS_2 -# define DOCARGS_3 _DOARGS_3 (20) -# define POPCARGS_3 _POPCARGS_3 -# define _PUSHCARGS_3 _PUSHCARGS_2 -# define _POPCARGS_3 _POPCARGS_2 - -# define PUSHCARGS_4 _PUSHCARGS_4 -# define DOCARGS_4 _DOARGS_4 (28) -# define POPCARGS_4 _POPCARGS_4 -# define _PUSHCARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (esi, 0); _PUSHCARGS_3 -# define _POPCARGS_4 _POPCARGS_3; popl %esi; \ - cfi_adjust_cfa_offset (-4); cfi_restore (esi); - -# define PUSHCARGS_5 _PUSHCARGS_5 -# define DOCARGS_5 _DOARGS_5 (36) -# define POPCARGS_5 _POPCARGS_5 -# define _PUSHCARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (edi, 0); _PUSHCARGS_4 -# define _POPCARGS_5 _POPCARGS_4; popl %edi; \ - cfi_adjust_cfa_offset (-4); cfi_restore (edi); - -# define PUSHCARGS_6 _PUSHCARGS_6 -# define DOCARGS_6 _DOARGS_6 (44) -# define POPCARGS_6 _POPCARGS_6 -# define _PUSHCARGS_6 pushl %ebp; cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (ebp, 0); _PUSHCARGS_5 -# define _POPCARGS_6 _POPCARGS_5; popl %ebp; \ - cfi_adjust_cfa_offset (-4); cfi_restore (ebp); - -# if IS_IN (libpthread) -# define CENABLE call __pthread_enable_asynccancel; -# define CDISABLE call __pthread_disable_asynccancel -# elif IS_IN (libc) -# define CENABLE call __libc_enable_asynccancel; -# define CDISABLE call __libc_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE call __librt_enable_asynccancel; -# define CDISABLE call __librt_disable_asynccancel -# else -# error Unsupported library -# endif -# define POPSTATE_0 \ - pushl %eax; cfi_adjust_cfa_offset (4); movl %ecx, %eax; \ - CDISABLE; popl %eax; cfi_adjust_cfa_offset (-4); -# define POPSTATE_1 POPSTATE_0 -# define POPSTATE_2 xchgl (%esp), %eax; CDISABLE; popl %eax; \ - cfi_adjust_cfa_offset (-4); -# define POPSTATE_3 POPSTATE_2 -# define POPSTATE_4 POPSTATE_3 -# define POPSTATE_5 POPSTATE_4 -# define POPSTATE_6 POPSTATE_5 - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET -# endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h index 7c7f619..96d04de 100644 --- a/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h @@ -23,201 +23,13 @@ #endif #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -# undef PSEUDO - -# if IS_IN (libc) -# define SYSDEP_CANCEL_ERRNO __libc_errno -# else -# define SYSDEP_CANCEL_ERRNO errno -# endif -# define SYSDEP_CANCEL_ERROR(args) \ -.section .gnu.linkonce.t.__syscall_error_##args, "ax"; \ - .align 32; \ - .proc __syscall_error_##args; \ - .global __syscall_error_##args; \ - .hidden __syscall_error_##args; \ - .size __syscall_error_##args, 64; \ -__syscall_error_##args: \ - .prologue; \ - .regstk args, 5, args, 0; \ - .save ar.pfs, loc0; \ - .save rp, loc1; \ - .body; \ - addl loc4 = @ltoff(@tprel(SYSDEP_CANCEL_ERRNO)), gp;; \ - ld8 loc4 = [loc4]; \ - mov rp = loc1;; \ - mov r8 = -1; \ - add loc4 = loc4, r13;; \ - st4 [loc4] = loc3; \ - mov ar.pfs = loc0 - -# ifndef USE_DL_SYSINFO - -# define PSEUDO(name, syscall_name, args) \ -.text; \ -ENTRY (name) \ - adds r14 = MULTIPLE_THREADS_OFFSET, r13;; \ - ld4 r14 = [r14]; \ - mov r15 = SYS_ify(syscall_name);; \ - cmp4.ne p6, p7 = 0, r14; \ -(p6) br.cond.spnt .Lpseudo_cancel;; \ - break __BREAK_SYSCALL;; \ - cmp.eq p6,p0=-1,r10; \ -(p6) br.cond.spnt.few __syscall_error; \ - ret;; \ - .endp name; \ - .proc __GC_##name; \ - .globl __GC_##name; \ - .hidden __GC_##name; \ -__GC_##name: \ -.Lpseudo_cancel: \ - .prologue; \ - .regstk args, 5, args, 0; \ - .save ar.pfs, loc0; \ - alloc loc0 = ar.pfs, args, 5, args, 0; \ - .save rp, loc1; \ - mov loc1 = rp;; \ - .body; \ - CENABLE;; \ - mov loc2 = r8; \ - COPY_ARGS_##args \ - mov r15 = SYS_ify(syscall_name); \ - break __BREAK_SYSCALL;; \ - mov loc3 = r8; \ - mov loc4 = r10; \ - mov out0 = loc2; \ - CDISABLE;; \ - cmp.eq p6,p0=-1,loc4; \ -(p6) br.cond.spnt.few __syscall_error_##args; \ - mov r8 = loc3; \ - mov rp = loc1; \ - mov ar.pfs = loc0; \ -.Lpseudo_end: \ - ret; \ - .endp __GC_##name; \ - SYSDEP_CANCEL_ERROR(args) - -# else /* USE_DL_SYSINFO */ - -# define PSEUDO(name, syscall_name, args) \ -.text; \ -ENTRY (name) \ - .prologue; \ - adds r2 = SYSINFO_OFFSET, r13; \ - adds r14 = MULTIPLE_THREADS_OFFSET, r13; \ - .save ar.pfs, r11; \ - mov r11 = ar.pfs;; \ - .body; \ - ld4 r14 = [r14]; \ - ld8 r2 = [r2]; \ - mov r15 = SYS_ify(syscall_name);; \ - cmp4.ne p6, p7 = 0, r14; \ - mov b7 = r2; \ -(p6) br.cond.spnt .Lpseudo_cancel; \ - br.call.sptk.many b6 = b7;; \ - mov ar.pfs = r11; \ - cmp.eq p6,p0 = -1, r10; \ -(p6) br.cond.spnt.few __syscall_error; \ - ret;; \ - .endp name; \ - \ - .proc __##syscall_name##_nocancel; \ - .globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - .prologue; \ - adds r2 = SYSINFO_OFFSET, r13; \ - .save ar.pfs, r11; \ - mov r11 = ar.pfs;; \ - .body; \ - ld8 r2 = [r2]; \ - mov r15 = SYS_ify(syscall_name);; \ - mov b7 = r2; \ - br.call.sptk.many b6 = b7;; \ - mov ar.pfs = r11; \ - cmp.eq p6,p0 = -1, r10; \ -(p6) br.cond.spnt.few __syscall_error; \ - ret;; \ - .endp __##syscall_name##_nocancel; \ - \ - .proc __GC_##name; \ - .globl __GC_##name; \ - .hidden __GC_##name; \ -__GC_##name: \ -.Lpseudo_cancel: \ - .prologue; \ - .regstk args, 5, args, 0; \ - .save ar.pfs, loc0; \ - alloc loc0 = ar.pfs, args, 5, args, 0; \ - adds loc4 = SYSINFO_OFFSET, r13; \ - .save rp, loc1; \ - mov loc1 = rp;; \ - .body; \ - ld8 loc4 = [loc4]; \ - CENABLE;; \ - mov loc2 = r8; \ - mov b7 = loc4; \ - COPY_ARGS_##args \ - mov r15 = SYS_ify(syscall_name); \ - br.call.sptk.many b6 = b7;; \ - mov loc3 = r8; \ - mov loc4 = r10; \ - mov out0 = loc2; \ - CDISABLE;; \ - cmp.eq p6,p0=-1,loc4; \ -(p6) br.cond.spnt.few __syscall_error_##args; \ - mov r8 = loc3; \ - mov rp = loc1; \ - mov ar.pfs = loc0; \ -.Lpseudo_end: \ - ret; \ - .endp __GC_##name; \ - SYSDEP_CANCEL_ERROR(args) - -# endif /* USE_DL_SYSINFO */ - -# undef PSEUDO_END -# define PSEUDO_END(name) .endp - -# if IS_IN (libpthread) -# define CENABLE br.call.sptk.many b0 = __pthread_enable_asynccancel -# define CDISABLE br.call.sptk.many b0 = __pthread_disable_asynccancel -# elif IS_IN (libc) -# define CENABLE br.call.sptk.many b0 = __libc_enable_asynccancel -# define CDISABLE br.call.sptk.many b0 = __libc_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE br.call.sptk.many b0 = __librt_enable_asynccancel -# define CDISABLE br.call.sptk.many b0 = __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -# define COPY_ARGS_0 /* Nothing */ -# define COPY_ARGS_1 COPY_ARGS_0 mov out0 = in0; -# define COPY_ARGS_2 COPY_ARGS_1 mov out1 = in1; -# define COPY_ARGS_3 COPY_ARGS_2 mov out2 = in2; -# define COPY_ARGS_4 COPY_ARGS_3 mov out3 = in3; -# define COPY_ARGS_5 COPY_ARGS_4 mov out4 = in4; -# define COPY_ARGS_6 COPY_ARGS_5 mov out5 = in5; -# define COPY_ARGS_7 COPY_ARGS_6 mov out6 = in6; - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14 -# endif - -#elif !defined __ASSEMBLER__ - +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 - #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h b/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h index 9bc9e13..1603c5f 100644 --- a/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h @@ -18,121 +18,21 @@ #include #include -#ifndef __ASSEMBLER__ -# include -#endif +#include #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - jne .Lpseudo_cancel; \ - .type __##syscall_name##_nocancel,@function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - DO_CALL (syscall_name, args); \ - cmp.l &-4095, %d0; \ - jcc SYSCALL_ERROR_LABEL; \ - rts; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - .Lpseudo_cancel: \ - CENABLE; \ - DOCARGS_##args \ - move.l %d0, -(%sp); /* Save result of CENABLE. */ \ - cfi_adjust_cfa_offset (4); \ - move.l &SYS_ify (syscall_name), %d0; \ - trap &0; \ - move.l %d0, %d2; \ - CDISABLE; \ - addq.l &4, %sp; /* Remove result of CENABLE from the stack. */ \ - cfi_adjust_cfa_offset (-4); \ - move.l %d2, %d0; \ - UNDOCARGS_##args \ - cmp.l &-4095, %d0; \ - jcc SYSCALL_ERROR_LABEL - -/* Note: we use D2 to save syscall's return value as D0 will be clobbered in - CDISABLE. */ -# define DOCARGS_0 move.l %d2, -(%sp); \ - cfi_adjust_cfa_offset (4); cfi_rel_offset (%d2, 0); -# define UNDOCARGS_0 move.l (%sp)+, %d2; \ - cfi_adjust_cfa_offset (-4); cfi_restore (%d2); - -# define DOCARGS_1 _DOCARGS_1 (4); DOCARGS_0 -# define _DOCARGS_1(n) move.l n(%sp), %d1; -# define UNDOCARGS_1 UNDOCARGS_0 - -# define DOCARGS_2 _DOCARGS_2 (8) -# define _DOCARGS_2(n) DOCARGS_0 move.l n+4(%sp), %d2; _DOCARGS_1 (n) -# define UNDOCARGS_2 UNDOCARGS_0 - -# define DOCARGS_3 _DOCARGS_3 (12) -# define _DOCARGS_3(n) move.l %d3, -(%sp); \ - cfi_adjust_cfa_offset (4); cfi_rel_offset (%d3, 0); \ - move.l n+4(%sp), %d3; _DOCARGS_2 (n) -# define UNDOCARGS_3 UNDOCARGS_2 move.l (%sp)+, %d3; \ - cfi_adjust_cfa_offset (-4); cfi_restore (%d3); - -# define DOCARGS_4 _DOCARGS_4 (16) -# define _DOCARGS_4(n) move.l %d4, -(%sp); \ - cfi_adjust_cfa_offset (4); cfi_rel_offset (%d4, 0); \ - move.l n+4(%sp), %d4; _DOCARGS_3 (n) -# define UNDOCARGS_4 UNDOCARGS_3 move.l (%sp)+, %d4; \ - cfi_adjust_cfa_offset (-4); cfi_restore (%d4); - -# define DOCARGS_5 _DOCARGS_5 (20) -# define _DOCARGS_5(n) move.l %d5, -(%sp); \ - cfi_adjust_cfa_offset (4); cfi_rel_offset (%d5, 0); \ - move.l n+4(%sp), %d5; _DOCARGS_4 (n) -# define UNDOCARGS_5 UNDOCARGS_4 move.l (%sp)+, %d5; \ - cfi_adjust_cfa_offset (-4); cfi_restore (%d5); - -# define DOCARGS_6 _DOCARGS_6 (24) -# define _DOCARGS_6(n) move.l n(%sp), %a0; _DOCARGS_5 (n-4) -# define UNDOCARGS_6 UNDOCARGS_5 - -# ifdef PIC -# define PSEUDO_JMP(sym) jbsr sym ## @PLTPC -# else -# define PSEUDO_JMP(sym) jbsr sym -# endif - -# if IS_IN (libpthread) -# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel) -# elif IS_IN (libc) -# define CENABLE PSEUDO_JMP (__libc_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__libc_disable_asynccancel) -# elif IS_IN (librt) -# define CENABLE PSEUDO_JMP (__librt_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__librt_disable_asynccancel) -# else -# error Unsupported library -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - PSEUDO_JMP (__m68k_read_tp); \ - tst.l MULTIPLE_THREADS_OFFSET(%a0) -# endif - -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION (1) #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, \ 1) -#endif diff --git a/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h b/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h index dbcc2b2..7fe030b 100644 --- a/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h @@ -23,136 +23,28 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# if !IS_IN (librt) || !defined(PIC) -# define AC_STACK_SIZE 16 /* space for r15, async_cancel arg and 2 temp words */ -# define AC_SET_GOT /* empty */ -# define AC_RESTORE_GOT /* empty */ -# else -# define AC_STACK_SIZE 20 /* extra 4 bytes for r20 */ -# define AC_SET_GOT \ - swi r20, r1, AC_STACK_SIZE-4; \ - mfs r20, rpc; \ - addik r20, r20, _GLOBAL_OFFSET_TABLE_+8; -# define AC_RESTORE_GOT \ - lwi r20, r1, AC_STACK_SIZE-4; -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P(r12); \ - bnei r12, L(pseudo_cancel); \ - .globl __##syscall_name##_nocancel; \ - .type __##syscall_name##_nocancel,@function; \ -__##syscall_name##_nocancel: \ - DO_CALL (syscall_name, args); \ - addik r4, r0, -4095; \ - cmpu r4, r4, r3; \ - bgei r4, SYSCALL_ERROR_LABEL; \ - rtsd r15, 8; \ - nop; \ - .size __##syscall_name##_nocancel, .-__##syscall_name##_nocancel; \ -L(pseudo_cancel): \ - addik r1, r1, -AC_STACK_SIZE; \ - swi r15, r1, 0; \ - AC_SET_GOT \ - DOCARGS_##args \ - CENABLE; \ - swi r3, r1, 8; \ - UNDOCARGS_##args \ - DO_CALL (syscall_name, args); \ - swi r3, r1, 12; \ - lwi r5, r1, 8; \ - CDISABLE; \ - lwi r3, r1, 12; \ - lwi r15, r1, 0; \ - AC_RESTORE_GOT \ - addik r1, r1, AC_STACK_SIZE; \ - addik r4, r0, -4095; \ - cmpu r4, r4, r3; \ - bgei r4, SYSCALL_ERROR_LABEL; \ - rtsd r15, 8; \ - nop; - -/* - * Macros to save/restore syscall arguments across CENABLE - * The arguments are saved into the caller's stack (original r1 + 4) - */ - -# define DOCARGS_0 -# define DOCARGS_1 swi r5, r1, AC_STACK_SIZE + 4; -# define DOCARGS_2 swi r6, r1, AC_STACK_SIZE + 8; DOCARGS_1 -# define DOCARGS_3 swi r7, r1, AC_STACK_SIZE + 12; DOCARGS_2 -# define DOCARGS_4 swi r8, r1, AC_STACK_SIZE + 16; DOCARGS_3 -# define DOCARGS_5 swi r9, r1, AC_STACK_SIZE + 20; DOCARGS_4 -# define DOCARGS_6 swi r10, r1, AC_STACK_SIZE + 24; DOCARGS_5 - -# define UNDOCARGS_0 -# define UNDOCARGS_1 lwi r5, r1, AC_STACK_SIZE + 4; -# define UNDOCARGS_2 UNDOCARGS_1 lwi r6, r1, AC_STACK_SIZE + 8; -# define UNDOCARGS_3 UNDOCARGS_2 lwi r7, r1, AC_STACK_SIZE + 12; -# define UNDOCARGS_4 UNDOCARGS_3 lwi r8, r1, AC_STACK_SIZE + 16; -# define UNDOCARGS_5 UNDOCARGS_4 lwi r9, r1, AC_STACK_SIZE + 20; -# define UNDOCARGS_6 UNDOCARGS_5 lwi r10, r1, AC_STACK_SIZE + 24; - -# ifdef PIC -# define PSEUDO_JMP(sym) brlid r15, sym##@PLTPC; addk r0, r0, r0 -# else -# define PSEUDO_JMP(sym) brlid r15, sym; addk r0, r0, r0 -# endif - # if IS_IN (libpthread) -# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel) # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) -# define CENABLE PSEUDO_JMP (__libc_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__libc_disable_asynccancel) # define __local_multiple_threads __libc_multiple_threads -# elif IS_IN (librt) -# define CENABLE PSEUDO_JMP (__librt_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__librt_disable_asynccancel) -# else -# error Unsupported library # endif - # if IS_IN (libpthread) || IS_IN (libc) -# ifndef __ASSEMBLER__ extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# else -# if !defined PIC -# define SINGLE_THREAD_P(reg) lwi reg, r0, __local_multiple_threads; -# else -# define SINGLE_THREAD_P(reg) \ - mfs reg, rpc; \ - addik reg, reg, _GLOBAL_OFFSET_TABLE_+8; \ - lwi reg, reg, __local_multiple_threads@GOT; \ - lwi reg, reg, 0; -# endif -# endif +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) # else -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - lwi reg, r0, MULTIPLE_THREADS_OFFSET(reg) -# endif # endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION (1) #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h deleted file mode 100644 index 0ed3e3d..0000000 --- a/sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h +++ /dev/null @@ -1,249 +0,0 @@ -/* Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library. If not, see - . */ - -#include -#include -#include -#ifndef __ASSEMBLER__ -# include -#endif -#include - -/* Gas will put the initial save of $gp into the CIE, because it appears to - happen before any instructions. So we use cfi_same_value instead of - cfi_restore. */ - -#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -#ifdef __PIC__ -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .align 2; \ - L(pseudo_start): \ - cfi_startproc; \ - cfi_adjust_cfa_offset (STKSPACE); \ - cfi_rel_offset (gp, STKOFF_GP); \ - 99: PTR_LA t9,__syscall_error; \ - /* manual cpreturn */ \ - REG_L gp, STKOFF_GP(sp); \ - cfi_same_value (gp); \ - RESTORESTK; \ - jr t9; \ - .type __##syscall_name##_nocancel, @function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - SAVESTK; \ - .cpsetup t9, STKOFF_GP, __##syscall_name##_nocancel; \ - cfi_rel_offset (gp, STKOFF_GP); \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - /* manual cpreturn */ \ - REG_L gp, STKOFF_GP(sp); \ - cfi_same_value (gp); \ - RESTORESTK; \ - ret; \ - cfi_endproc; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - ENTRY (name) \ - SAVESTK; \ - .cpsetup t9, STKOFF_GP, name; \ - cfi_rel_offset (gp, STKOFF_GP); \ - SINGLE_THREAD_P(v1); \ - bne zero, v1, L(pseudo_cancel); \ - .set noreorder; \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - .set reorder; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - /* manual cpreturn */ \ - REG_L gp, STKOFF_GP(sp); \ - cfi_same_value (gp); \ - RESTORESTK; \ - ret; \ - L(pseudo_cancel): \ - cfi_adjust_cfa_offset (STKSPACE); \ - cfi_rel_offset (gp, STKOFF_GP); \ - REG_S ra, STKOFF_RA(sp); \ - cfi_rel_offset (ra, STKOFF_RA); \ - PUSHARGS_##args; /* save syscall args */ \ - CENABLE; \ - REG_S v0, STKOFF_SVMSK(sp); /* save mask */ \ - POPARGS_##args; /* restore syscall args */ \ - .set noreorder; \ - li v0, SYS_ify (syscall_name); \ - syscall; \ - .set reorder; \ - REG_S v0, STKOFF_SC_V0(sp); /* save syscall result */ \ - REG_S a3, STKOFF_SC_ERR(sp); /* save syscall error flag */ \ - REG_L a0, STKOFF_SVMSK(sp); /* pass mask as arg1 */ \ - CDISABLE; \ - REG_L a3, STKOFF_SC_ERR(sp); /* restore syscall error flag */ \ - REG_L ra, STKOFF_RA(sp); /* restore return address */ \ - REG_L v0, STKOFF_SC_V0(sp); /* restore syscall result */ \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - /* manual cpreturn */ \ - REG_L gp, STKOFF_GP(sp); \ - cfi_same_value (gp); \ - RESTORESTK; \ - L(pseudo_end): -#else -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .align 2; \ - L(pseudo_start): \ - cfi_startproc; \ - cfi_adjust_cfa_offset (STKSPACE); \ - 99: RESTORESTK; \ - j __syscall_error; \ - .type __##syscall_name##_nocancel, @function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - SAVESTK; \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - RESTORESTK; \ - ret; \ - cfi_endproc; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - ENTRY (name) \ - SAVESTK; \ - SINGLE_THREAD_P(v1); \ - bne zero, v1, L(pseudo_cancel); \ - .set noreorder; \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - .set reorder; \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - RESTORESTK; \ - ret; \ - L(pseudo_cancel): \ - cfi_adjust_cfa_offset (STKSPACE); \ - REG_S ra, STKOFF_RA(sp); \ - cfi_rel_offset (ra, STKOFF_RA); \ - PUSHARGS_##args; /* save syscall args */ \ - CENABLE; \ - REG_S v0, STKOFF_SVMSK(sp); /* save mask */ \ - POPARGS_##args; /* restore syscall args */ \ - .set noreorder; \ - li v0, SYS_ify (syscall_name); \ - syscall; \ - .set reorder; \ - REG_S v0, STKOFF_SC_V0(sp); /* save syscall result */ \ - REG_S a3, STKOFF_SC_ERR(sp); /* save syscall error flag */ \ - REG_L a0, STKOFF_SVMSK(sp); /* pass mask as arg1 */ \ - CDISABLE; \ - REG_L a3, STKOFF_SC_ERR(sp); /* restore syscall error flag */ \ - REG_L ra, STKOFF_RA(sp); /* restore return address */ \ - REG_L v0, STKOFF_SC_V0(sp); /* restore syscall result */ \ - bne a3, zero, SYSCALL_ERROR_LABEL; \ - RESTORESTK; \ - L(pseudo_end): -#endif - -# undef PSEUDO_END -# define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym - -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 REG_S a0, STKOFF_A0(sp); cfi_rel_offset (a0, STKOFF_A0); -# define PUSHARGS_2 PUSHARGS_1 REG_S a1, STKOFF_A1(sp); cfi_rel_offset (a1, STKOFF_A1); -# define PUSHARGS_3 PUSHARGS_2 REG_S a2, STKOFF_A2(sp); cfi_rel_offset (a2, STKOFF_A2); -# define PUSHARGS_4 PUSHARGS_3 REG_S a3, STKOFF_A3(sp); cfi_rel_offset (a3, STKOFF_A3); -# define PUSHARGS_5 PUSHARGS_4 REG_S a4, STKOFF_A4(sp); cfi_rel_offset (a3, STKOFF_A4); -# define PUSHARGS_6 PUSHARGS_5 REG_S a5, STKOFF_A5(sp); cfi_rel_offset (a3, STKOFF_A5); - -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 REG_L a0, STKOFF_A0(sp); -# define POPARGS_2 POPARGS_1 REG_L a1, STKOFF_A1(sp); -# define POPARGS_3 POPARGS_2 REG_L a2, STKOFF_A2(sp); -# define POPARGS_4 POPARGS_3 REG_L a3, STKOFF_A3(sp); -# define POPARGS_5 POPARGS_4 REG_L a4, STKOFF_A4(sp); -# define POPARGS_6 POPARGS_5 REG_L a5, STKOFF_A5(sp); - -/* Save an even number of slots. Should be 0 if an even number of slots - are used below, or SZREG if an odd number are used. */ -# ifdef __PIC__ -# define STK_PAD SZREG -# else -# define STK_PAD 0 -# endif - -/* Place values that we are more likely to use later in this sequence, i.e. - closer to the SP at function entry. If you do that, the are more - likely to already be in your d-cache. */ -# define STKOFF_A5 (STK_PAD) -# define STKOFF_A4 (STKOFF_A5 + SZREG) -# define STKOFF_A3 (STKOFF_A4 + SZREG) -# define STKOFF_A2 (STKOFF_A3 + SZREG) /* MT and more args. */ -# define STKOFF_A1 (STKOFF_A2 + SZREG) /* MT and 2 args. */ -# define STKOFF_A0 (STKOFF_A1 + SZREG) /* MT and 1 arg. */ -# define STKOFF_RA (STKOFF_A0 + SZREG) /* Used if MT. */ -# define STKOFF_SC_V0 (STKOFF_RA + SZREG) /* Used if MT. */ -# define STKOFF_SC_ERR (STKOFF_SC_V0 + SZREG) /* Used if MT. */ -# define STKOFF_SVMSK (STKOFF_SC_ERR + SZREG) /* Used if MT. */ - -# ifdef __PIC__ -# define STKOFF_GP (STKOFF_SVMSK + SZREG) /* Always used. */ -# define STKSPACE (STKOFF_GP + SZREG) -# else -# define STKSPACE (STKOFF_SVMSK + SZREG) -# endif - -# define SAVESTK PTR_SUBU sp, STKSPACE; cfi_adjust_cfa_offset(STKSPACE) -# define RESTORESTK PTR_ADDU sp, STKSPACE; cfi_adjust_cfa_offset(-STKSPACE) - -# ifdef __PIC__ -# define PSEUDO_JMP(sym) PTR_LA t9, sym; jalr t9 -# else -# define PSEUDO_JMP(sym) jal sym -# endif - -# if IS_IN (libpthread) -# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel) -# elif IS_IN (librt) -# define CENABLE PSEUDO_JMP (__librt_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__librt_disable_asynccancel) -# else -# define CENABLE PSEUDO_JMP (__libc_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__libc_disable_asynccancel) -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) \ - == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - READ_THREAD_POINTER(reg); \ - lw reg, MULTIPLE_THREADS_OFFSET(reg) -#endif - -#elif !defined __ASSEMBLER__ - -# define SINGLE_THREAD_P 1 -# define NO_CANCELLATION 1 - -#endif - -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h b/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h index 0e45f00..fe9a3fc 100644 --- a/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/mips/sysdep-cancel.h @@ -18,173 +18,22 @@ #include #include #include -#ifndef __ASSEMBLER__ -# include -#endif +#include #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# ifdef __PIC__ -# define PSEUDO_CPLOAD .cpload t9; -# define PSEUDO_ERRJMP la t9, __syscall_error; jr t9; -# define PSEUDO_SAVEGP sw gp, 32(sp); cfi_rel_offset (gp, 32); -# define PSEUDO_LOADGP lw gp, 32(sp); -# else -# define PSEUDO_CPLOAD -# define PSEUDO_ERRJMP j __syscall_error; -# define PSEUDO_SAVEGP -# define PSEUDO_LOADGP -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .align 2; \ - .set nomips16; \ - L(pseudo_start): \ - cfi_startproc; \ - 99: PSEUDO_ERRJMP \ - .type __##syscall_name##_nocancel, @function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - .set noreorder; \ - PSEUDO_CPLOAD \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - .set reorder; \ - bne a3, zero, 99b; \ - ret; \ - cfi_endproc; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - ENTRY (name) \ - .set noreorder; \ - PSEUDO_CPLOAD \ - .set reorder; \ - SINGLE_THREAD_P(v1); \ - bne zero, v1, L(pseudo_cancel); \ - .set noreorder; \ - li v0, SYS_ify(syscall_name); \ - syscall; \ - .set reorder; \ - bne a3, zero, 99b; \ - ret; \ - L(pseudo_cancel): \ - SAVESTK_##args; \ - sw ra, 28(sp); \ - cfi_rel_offset (ra, 28); \ - PSEUDO_SAVEGP \ - PUSHARGS_##args; /* save syscall args */ \ - CENABLE; \ - PSEUDO_LOADGP \ - sw v0, 44(sp); /* save mask */ \ - POPARGS_##args; /* restore syscall args */ \ - .set noreorder; \ - li v0, SYS_ify (syscall_name); \ - syscall; \ - .set reorder; \ - sw v0, 36(sp); /* save syscall result */ \ - sw a3, 40(sp); /* save syscall error flag */ \ - lw a0, 44(sp); /* pass mask as arg1 */ \ - CDISABLE; \ - PSEUDO_LOADGP \ - lw v0, 36(sp); /* restore syscall result */ \ - lw a3, 40(sp); /* restore syscall error flag */ \ - lw ra, 28(sp); /* restore return address */ \ - .set noreorder; \ - bne a3, zero, 99b; \ - RESTORESTK; \ - L(pseudo_end): \ - .set reorder; - -# undef PSEUDO_END -# define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym - -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 sw a0, 0(sp); cfi_rel_offset (a0, 0); -# define PUSHARGS_2 PUSHARGS_1 sw a1, 4(sp); cfi_rel_offset (a1, 4); -# define PUSHARGS_3 PUSHARGS_2 sw a2, 8(sp); cfi_rel_offset (a2, 8); -# define PUSHARGS_4 PUSHARGS_3 sw a3, 12(sp); cfi_rel_offset (a3, 12); -# define PUSHARGS_5 PUSHARGS_4 /* handled by SAVESTK_## */ -# define PUSHARGS_6 PUSHARGS_5 -# define PUSHARGS_7 PUSHARGS_6 - -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 lw a0, 0(sp); -# define POPARGS_2 POPARGS_1 lw a1, 4(sp); -# define POPARGS_3 POPARGS_2 lw a2, 8(sp); -# define POPARGS_4 POPARGS_3 lw a3, 12(sp); -# define POPARGS_5 POPARGS_4 /* args already in new stackframe */ -# define POPARGS_6 POPARGS_5 -# define POPARGS_7 POPARGS_6 - - -# define STKSPACE 48 -# define SAVESTK_0 subu sp, STKSPACE; cfi_adjust_cfa_offset(STKSPACE) -# define SAVESTK_1 SAVESTK_0 -# define SAVESTK_2 SAVESTK_1 -# define SAVESTK_3 SAVESTK_2 -# define SAVESTK_4 SAVESTK_3 -# define SAVESTK_5 lw t0, 16(sp); \ - SAVESTK_0; \ - sw t0, 16(sp) - -# define SAVESTK_6 lw t0, 16(sp); \ - lw t1, 20(sp); \ - SAVESTK_0; \ - sw t0, 16(sp); \ - sw t1, 20(sp) - -# define SAVESTK_7 lw t0, 16(sp); \ - lw t1, 20(sp); \ - lw t2, 24(sp); \ - SAVESTK_0; \ - sw t0, 16(sp); \ - sw t1, 20(sp); \ - sw t2, 24(sp) - -# define RESTORESTK addu sp, STKSPACE; cfi_adjust_cfa_offset(-STKSPACE) - - -# ifdef __PIC__ -/* We use jalr rather than jal. This means that the assembler will not - automatically restore $gp (in case libc has multiple GOTs) so we must - do it manually - which we have to do anyway since we don't use .cprestore. - It also shuts up the assembler warning about not using .cprestore. */ -# define PSEUDO_JMP(sym) la t9, sym; jalr t9; -# else -# define PSEUDO_JMP(sym) jal sym; -# endif - -# if IS_IN (libpthread) -# define CENABLE PSEUDO_JMP (__pthread_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__pthread_disable_asynccancel) -# elif IS_IN (librt) -# define CENABLE PSEUDO_JMP (__librt_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__librt_disable_asynccancel) -# else -# define CENABLE PSEUDO_JMP (__libc_enable_asynccancel) -# define CDISABLE PSEUDO_JMP (__libc_disable_asynccancel) -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) \ == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - READ_THREAD_POINTER(reg); \ - lw reg, MULTIPLE_THREADS_OFFSET(reg) -#endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P 1 # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h b/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h index 47b92d9..7647363 100644 --- a/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h @@ -18,124 +18,22 @@ #include #include -#ifndef __ASSEMBLER__ -# include -#endif +#include #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .type __##syscall_name##_nocancel, @function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - cfi_startproc; \ - DO_CALL (syscall_name, args); \ - bne r7, zero, SYSCALL_ERROR_LABEL; \ - ret; \ - cfi_endproc; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - ENTRY (name) \ - SINGLE_THREAD_P(r2); \ - bne r2, zero, pseudo_cancel; \ - DO_CALL (syscall_name, args); \ - bne r7, zero, SYSCALL_ERROR_LABEL; \ - ret; \ - pseudo_cancel: \ - SAVESTK_##args; /* save syscall args and adjust stack */ \ - SAVEREG(ra, 0); /* save return address */ \ - SAVEREG(r22, 4); /* save GOT pointer */ \ - nextpc r22; \ -1: movhi r2, %hiadj(_gp_got - 1b); \ - addi r2, r2, %lo(_gp_got - 1b); \ - add r22, r22, r2; \ - CENABLE; \ - callr r3; \ - stw r2, 8(sp); /* save mask */ \ - LOADARGS_##args; \ - movi r2, SYS_ify(syscall_name); \ - trap; \ - stw r2, 12(sp); /* save syscall result */ \ - stw r7, 16(sp); /* save syscall error flag */ \ - ldw r4, 8(sp); /* pass mask as argument 1 */ \ - CDISABLE; \ - callr r3; \ - ldw r7, 16(sp); /* restore syscall error flag */ \ - ldw r2, 12(sp); /* restore syscall result */ \ - ldw ra, 0(sp); /* restore return address */ \ - ldw r22, 4(sp); /* restore GOT pointer */ \ - RESTORESTK_##args; \ - bne r7, zero, SYSCALL_ERROR_LABEL; - - -# undef PSEUDO_END -# define PSEUDO_END(sym) \ - SYSCALL_ERROR_HANDLER \ - END (sym) - -#define SAVEREG(REG, LOC) stw REG, LOC(sp); cfi_rel_offset (REG, LOC) -#define SAVESTK(X) subi sp, sp, X; cfi_adjust_cfa_offset(X) -#define SAVESTK_0 SAVESTK(20) -#define SAVEARG_1 SAVEREG(r4, 20) -#define SAVESTK_1 SAVESTK(24); SAVEARG_1 -#define SAVEARG_2 SAVEREG(r5, 24); SAVEARG_1 -#define SAVESTK_2 SAVESTK(28); SAVEARG_2 -#define SAVEARG_3 SAVEREG(r6, 28); SAVEARG_2 -#define SAVESTK_3 SAVESTK(32); SAVEARG_3 -#define SAVEARG_4 SAVEREG(r7, 32); SAVEARG_3 -#define SAVESTK_4 SAVESTK(36); SAVEARG_4 -#define SAVESTK_5 SAVESTK_4 -#define SAVESTK_6 SAVESTK_5 - -#define LOADARGS_0 -#define LOADARGS_1 ldw r4, 20(sp) -#define LOADARGS_2 LOADARGS_1; ldw r5, 24(sp) -#define LOADARGS_3 LOADARGS_2; ldw r6, 28(sp) -#define LOADARGS_4 LOADARGS_3; ldw r7, 32(sp) -#define LOADARGS_5 LOADARGS_4; ldw r8, 36(sp) -#define LOADARGS_6 LOADARGS_5; ldw r9, 40(sp) - -#define RESTORESTK(X) addi sp, sp, X; cfi_adjust_cfa_offset(-X) -#define RESTORESTK_0 RESTORESTK(20) -#define RESTORESTK_1 RESTORESTK(24) -#define RESTORESTK_2 RESTORESTK(28) -#define RESTORESTK_3 RESTORESTK(32) -#define RESTORESTK_4 RESTORESTK(36) -#define RESTORESTK_5 RESTORESTK(36) -#define RESTORESTK_6 RESTORESTK(36) - -# if IS_IN (libpthread) -# define CENABLE ldw r3, %call(__pthread_enable_asynccancel)(r22) -# define CDISABLE ldw r3, %call(__pthread_disable_asynccancel)(r22) -# elif IS_IN (librt) -# define CENABLE ldw r3, %call(__librt_enable_asynccancel)(r22) -# define CDISABLE ldw r3, %call(__librt_disable_asynccancel)(r22) -# elif IS_IN (libc) -# define CENABLE ldw r3, %call(__libc_enable_asynccancel)(r22) -# define CDISABLE ldw r3, %call(__libc_disable_asynccancel)(r22) -# else -# error Unsupported library -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) \ == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ldw reg, MULTIPLE_THREADS_OFFSET(r23) -#endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P 1 # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h deleted file mode 100644 index 35d3f05..0000000 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h +++ /dev/null @@ -1,118 +0,0 @@ -/* Cancellable system call stubs. Linux/PowerPC version. - Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Franz Sirl , 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#ifndef __ASSEMBLER__ -# include -#endif - -#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - bne- .Lpseudo_cancel; \ - .type __##syscall_name##_nocancel,@function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - DO_CALL (SYS_ify (syscall_name)); \ - PSEUDO_RET; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - .Lpseudo_cancel: \ - stwu 1,-48(1); \ - cfi_adjust_cfa_offset (48); \ - mflr 9; \ - stw 9,52(1); \ - cfi_offset (lr, 4); \ - DOCARGS_##args; /* save syscall args around CENABLE. */ \ - CENABLE; \ - stw 3,16(1); /* store CENABLE return value (MASK). */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL (SYS_ify (syscall_name)); \ - mfcr 0; /* save CR/R3 around CDISABLE. */ \ - stw 3,8(1); \ - stw 0,12(1); \ - lwz 3,16(1); /* pass MASK to CDISABLE. */ \ - CDISABLE; \ - lwz 4,52(1); \ - lwz 0,12(1); /* restore CR/R3. */ \ - lwz 3,8(1); \ - mtlr 4; \ - mtcr 0; \ - addi 1,1,48; - -# define DOCARGS_0 -# define UNDOCARGS_0 - -# define DOCARGS_1 stw 3,20(1); DOCARGS_0 -# define UNDOCARGS_1 lwz 3,20(1); UNDOCARGS_0 - -# define DOCARGS_2 stw 4,24(1); DOCARGS_1 -# define UNDOCARGS_2 lwz 4,24(1); UNDOCARGS_1 - -# define DOCARGS_3 stw 5,28(1); DOCARGS_2 -# define UNDOCARGS_3 lwz 5,28(1); UNDOCARGS_2 - -# define DOCARGS_4 stw 6,32(1); DOCARGS_3 -# define UNDOCARGS_4 lwz 6,32(1); UNDOCARGS_3 - -# define DOCARGS_5 stw 7,36(1); DOCARGS_4 -# define UNDOCARGS_5 lwz 7,36(1); UNDOCARGS_4 - -# define DOCARGS_6 stw 8,40(1); DOCARGS_5 -# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5 - -# if IS_IN (libpthread) -# define CENABLE bl __pthread_enable_asynccancel@local -# define CDISABLE bl __pthread_disable_asynccancel@local -# elif IS_IN (libc) -# define CENABLE bl __libc_enable_asynccancel@local -# define CDISABLE bl __libc_disable_asynccancel@local -# elif IS_IN (librt) -# define CENABLE bl __librt_enable_asynccancel@local -# define CDISABLE bl __librt_disable_asynccancel@local -# else -# error Unsupported library -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - lwz 10,MULTIPLE_THREADS_OFFSET(2); \ - cmpwi 10,0 -# endif - -#elif !defined __ASSEMBLER__ - -# define SINGLE_THREAD_P (1) -# define NO_CANCELLATION 1 - -#endif - -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h deleted file mode 100644 index cad13da..0000000 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h +++ /dev/null @@ -1,147 +0,0 @@ -/* Cancellable system call stubs. Linux/PowerPC64 version. - Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Franz Sirl , 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#ifndef __ASSEMBLER__ -# include -#endif - -#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -# define DASHDASHPFX(str) __##str - -#if _CALL_ELF == 2 -#define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16+48) -#define CANCEL_PARM_SAVE (FRAME_MIN_SIZE+16) -#else -#define CANCEL_FRAMESIZE (FRAME_MIN_SIZE+16) -#define CANCEL_PARM_SAVE (CANCEL_FRAMESIZE+FRAME_PARM_SAVE) -#endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .section ".text"; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - bne- .Lpseudo_cancel; \ - .type DASHDASHPFX(syscall_name##_nocancel),@function; \ - .globl DASHDASHPFX(syscall_name##_nocancel); \ - DASHDASHPFX(syscall_name##_nocancel): \ - DO_CALL (SYS_ify (syscall_name)); \ - PSEUDO_RET; \ - .size DASHDASHPFX(syscall_name##_nocancel),.-DASHDASHPFX(syscall_name##_nocancel); \ - .Lpseudo_cancel: \ - stdu 1,-CANCEL_FRAMESIZE(1); \ - cfi_adjust_cfa_offset (CANCEL_FRAMESIZE); \ - mflr 9; \ - std 9,CANCEL_FRAMESIZE+FRAME_LR_SAVE(1); \ - cfi_offset (lr, FRAME_LR_SAVE); \ - DOCARGS_##args; /* save syscall args around CENABLE. */ \ - CENABLE; \ - std 3,FRAME_MIN_SIZE(1); /* store CENABLE return value (MASK). */ \ - UNDOCARGS_##args; /* restore syscall args. */ \ - DO_CALL (SYS_ify (syscall_name)); \ - mfcr 0; /* save CR/R3 around CDISABLE. */ \ - std 3,FRAME_MIN_SIZE+8(1); \ - std 0,CANCEL_FRAMESIZE+FRAME_CR_SAVE(1); \ - cfi_offset (cr, FRAME_CR_SAVE); \ - ld 3,FRAME_MIN_SIZE(1); /* pass MASK to CDISABLE. */ \ - CDISABLE; \ - ld 9,CANCEL_FRAMESIZE+FRAME_LR_SAVE(1); \ - ld 0,CANCEL_FRAMESIZE+FRAME_CR_SAVE(1); /* restore CR/R3. */ \ - ld 3,FRAME_MIN_SIZE+8(1); \ - mtlr 9; \ - mtcr 0; \ - addi 1,1,CANCEL_FRAMESIZE; \ - cfi_adjust_cfa_offset (-CANCEL_FRAMESIZE); \ - cfi_restore (lr); \ - cfi_restore (cr) - -# define DOCARGS_0 -# define UNDOCARGS_0 - -# define DOCARGS_1 std 3,CANCEL_PARM_SAVE(1); DOCARGS_0 -# define UNDOCARGS_1 ld 3,CANCEL_PARM_SAVE(1); UNDOCARGS_0 - -# define DOCARGS_2 std 4,CANCEL_PARM_SAVE+8(1); DOCARGS_1 -# define UNDOCARGS_2 ld 4,CANCEL_PARM_SAVE+8(1); UNDOCARGS_1 - -# define DOCARGS_3 std 5,CANCEL_PARM_SAVE+16(1); DOCARGS_2 -# define UNDOCARGS_3 ld 5,CANCEL_PARM_SAVE+16(1); UNDOCARGS_2 - -# define DOCARGS_4 std 6,CANCEL_PARM_SAVE+24(1); DOCARGS_3 -# define UNDOCARGS_4 ld 6,CANCEL_PARM_SAVE+24(1); UNDOCARGS_3 - -# define DOCARGS_5 std 7,CANCEL_PARM_SAVE+32(1); DOCARGS_4 -# define UNDOCARGS_5 ld 7,CANCEL_PARM_SAVE+32(1); UNDOCARGS_4 - -# define DOCARGS_6 std 8,CANCEL_PARM_SAVE+40(1); DOCARGS_5 -# define UNDOCARGS_6 ld 8,CANCEL_PARM_SAVE+40(1); UNDOCARGS_5 - -# if IS_IN (libpthread) -# ifdef SHARED -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) -# else -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel); nop -# endif -# elif IS_IN (libc) -# ifdef SHARED -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) -# else -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel); nop -# endif -# elif IS_IN (librt) -# ifdef SHARED -# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel) -# else -# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel); nop -# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel); nop -# endif -# else -# error Unsupported library -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - lwz 10,MULTIPLE_THREADS_OFFSET(13); \ - cmpwi 10,0 -# endif - -#elif !defined __ASSEMBLER__ - -# define SINGLE_THREAD_P (1) -# define NO_CANCELLATION 1 - -#endif - -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h b/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h new file mode 100644 index 0000000..85af880 --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h @@ -0,0 +1,38 @@ +/* Cancellable system call stubs. Linux/PowerPC version. + Copyright (C) 2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include + +#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) + +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) + +#else + +# define SINGLE_THREAD_P (1) +# define NO_CANCELLATION 1 + +#endif + +#define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h index b1e80bc..82763b7 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h @@ -24,116 +24,17 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -L(pseudo_cancel): \ - cfi_startproc; \ - STM_##args \ - stm %r12,%r15,48(%r15); \ - cfi_offset (%r15, -36); \ - cfi_offset (%r14, -40); \ - cfi_offset (%r13, -44); \ - cfi_offset (%r12, -48); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - cfi_adjust_cfa_offset (96); \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r1,1f-0b(%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - .if SYS_ify (syscall_name) < 256; \ - svc SYS_ify (syscall_name); \ - .else; \ - lhi %r1,SYS_ify (syscall_name); \ - svc 0; \ - .endif; \ - LR7_##args \ - l %r1,2f-0b(%r13); \ - lr %r12,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r12; \ - lm %r12,%r15,48+96(%r15); \ - cfi_endproc; \ - j L(pseudo_check); \ -1: .long CENABLE-0b; \ -2: .long CDISABLE-0b; \ -ENTRY(name) \ - SINGLE_THREAD_P(%r1) \ - jne L(pseudo_cancel); \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lhi %r4,-4095; \ - clr %r2,%r4; \ - jnl SYSCALL_ERROR_LABEL; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ -L(pseudo_end): - -# if IS_IN (libpthread) -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# elif IS_IN (libc) -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE __librt_enable_asynccancel -# define CDISABLE __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -#define STM_0 /* Nothing */ -#define STM_1 st %r2,8(%r15); -#define STM_2 stm %r2,%r3,8(%r15); -#define STM_3 stm %r2,%r4,8(%r15); -#define STM_4 stm %r2,%r5,8(%r15); -#define STM_5 stm %r2,%r5,8(%r15); -#define STM_6 stm %r2,%r7,8(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 l %r2,8+96(%r15); -#define LM_2 lm %r2,%r3,8+96(%r15); -#define LM_3 lm %r2,%r4,8+96(%r15); -#define LM_4 lm %r2,%r5,8+96(%r15); -#define LM_5 lm %r2,%r5,8+96(%r15); -#define LM_6 lm %r2,%r5,8+96(%r15); \ - cfi_offset (%r7, -68); \ - l %r7,96+96(%r15); - -#define LR7_0 /* Nothing */ -#define LR7_1 /* Nothing */ -#define LR7_2 /* Nothing */ -#define LR7_3 /* Nothing */ -#define LR7_4 /* Nothing */ -#define LR7_5 /* Nothing */ -#define LR7_6 l %r7,28+96(%r15); \ - cfi_restore (%r7); - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ear reg,%a0; \ - icm reg,15,MULTIPLE_THREADS_OFFSET(reg); -# endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h index 9b2c546..952d2af 100644 --- a/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h @@ -18,135 +18,36 @@ #include #include -#ifndef __ASSEMBLER__ -# include -#endif +#include #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -L(pseudo_cancel): \ - cfi_startproc; \ - STM_##args \ - stmg %r13,%r15,104(%r15); \ - cfi_offset (%r15,-40); \ - cfi_offset (%r14,-48); \ - cfi_offset (%r13,-56); \ - lgr %r14,%r15; \ - aghi %r15,-160; \ - cfi_adjust_cfa_offset (160); \ - stg %r14,0(%r15); \ - brasl %r14,CENABLE; \ - lgr %r0,%r2; \ - LM_##args \ - .if SYS_ify (syscall_name) < 256; \ - svc SYS_ify (syscall_name); \ - .else; \ - lghi %r1,SYS_ify (syscall_name); \ - svc 0; \ - .endif; \ - LR7_##args \ - lgr %r13,%r2; \ - lgr %r2,%r0; \ - brasl %r14,CDISABLE; \ - lgr %r2,%r13; \ - lmg %r13,%r15,104+160(%r15); \ - cfi_endproc; \ - j L(pseudo_check); \ -ENTRY(name) \ - SINGLE_THREAD_P \ - jne L(pseudo_cancel); \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lghi %r4,-4095; \ - clgr %r2,%r4; \ - jgnl SYSCALL_ERROR_LABEL; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ -L(pseudo_end): - # if IS_IN (libpthread) -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel # define __local_multiple_threads __libc_multiple_threads -# elif IS_IN (librt) -# define CENABLE __librt_enable_asynccancel -# define CDISABLE __librt_disable_asynccancel -# else -# error Unsupported library # endif -#define STM_0 /* Nothing */ -#define STM_1 stg %r2,16(%r15); -#define STM_2 stmg %r2,%r3,16(%r15); -#define STM_3 stmg %r2,%r4,16(%r15); -#define STM_4 stmg %r2,%r5,16(%r15); -#define STM_5 stmg %r2,%r5,16(%r15); -#define STM_6 stmg %r2,%r7,16(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 lg %r2,16+160(%r15); -#define LM_2 lmg %r2,%r3,16+160(%r15); -#define LM_3 lmg %r2,%r4,16+160(%r15); -#define LM_4 lmg %r2,%r5,16+160(%r15); -#define LM_5 lmg %r2,%r5,16+160(%r15); -#define LM_6 lmg %r2,%r5,16+160(%r15); \ - cfi_offset (%r7, -104); \ - lg %r7,160+160(%r15); - -#define LR7_0 /* Nothing */ -#define LR7_1 /* Nothing */ -#define LR7_2 /* Nothing */ -#define LR7_3 /* Nothing */ -#define LR7_4 /* Nothing */ -#define LR7_5 /* Nothing */ -#define LR7_6 lg %r7,56+160(%r15); \ - cfi_restore (%r7); - # if IS_IN (libpthread) || IS_IN (libc) -# ifndef __ASSEMBLER__ extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - larl %r1,__local_multiple_threads; \ - icm %r0,15,0(%r1); -# endif # else -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - ear %r1,%a0; \ - sllg %r1,%r1,32; \ - ear %r1,%a1; \ - icm %r1,15,MULTIPLE_THREADS_OFFSET(%r1); -# endif # endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h b/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h index 5645cad..1ea501b 100644 --- a/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h @@ -23,147 +23,17 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -# define _IMM12 #-12 -# define _IMM16 #-16 -# define _IMP16 #16 -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name); \ - .Lpseudo_start: \ - SINGLE_THREAD_P; \ - bf .Lpseudo_cancel; \ - .type __##syscall_name##_nocancel,@function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - DO_CALL (syscall_name, args); \ - mov r0,r1; \ - mov _IMM12,r2; \ - shad r2,r1; \ - not r1,r1; \ - tst r1,r1; \ - bt .Lsyscall_error; \ - bra .Lpseudo_end; \ - nop; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - .Lpseudo_cancel: \ - sts.l pr,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (pr, 0); \ - add _IMM16,r15; \ - cfi_adjust_cfa_offset (16); \ - SAVE_ARGS_##args; \ - CENABLE; \ - LOAD_ARGS_##args; \ - add _IMP16,r15; \ - cfi_adjust_cfa_offset (-16); \ - lds.l @r15+,pr; \ - cfi_adjust_cfa_offset (-4); \ - cfi_restore (pr); \ - DO_CALL(syscall_name, args); \ - SYSCALL_INST_PAD; \ - sts.l pr,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (pr, 0); \ - mov.l r0,@-r15; \ - cfi_adjust_cfa_offset (4); \ - cfi_rel_offset (r0, 0); \ - CDISABLE; \ - mov.l @r15+,r0; \ - cfi_adjust_cfa_offset (-4); \ - cfi_restore (r0); \ - lds.l @r15+,pr; \ - cfi_adjust_cfa_offset (-4); \ - cfi_restore (pr); \ - mov r0,r1; \ - mov _IMM12,r2; \ - shad r2,r1; \ - not r1,r1; \ - tst r1,r1; \ - bf .Lpseudo_end; \ - .Lsyscall_error: \ - SYSCALL_ERROR_HANDLER; \ - .Lpseudo_end: - -# undef PSEUDO_END -# define PSEUDO_END(sym) \ - END (sym) - -# define SAVE_ARGS_0 /* Nothing. */ -# define SAVE_ARGS_1 SAVE_ARGS_0; mov.l r4,@(0,r15); cfi_offset (r4,-4) -# define SAVE_ARGS_2 SAVE_ARGS_1; mov.l r5,@(4,r15); cfi_offset (r5,-8) -# define SAVE_ARGS_3 SAVE_ARGS_2; mov.l r6,@(8,r15); cfi_offset (r6,-12) -# define SAVE_ARGS_4 SAVE_ARGS_3; mov.l r7,@(12,r15); cfi_offset (r7,-16) -# define SAVE_ARGS_5 SAVE_ARGS_4 -# define SAVE_ARGS_6 SAVE_ARGS_5 - -# define LOAD_ARGS_0 /* Nothing. */ -# define LOAD_ARGS_1 LOAD_ARGS_0; mov.l @(0,r15),r4; cfi_restore (r4) -# define LOAD_ARGS_2 LOAD_ARGS_1; mov.l @(4,r15),r5; cfi_restore (r5) -# define LOAD_ARGS_3 LOAD_ARGS_2; mov.l @(8,r15),r6; cfi_restore (r6) -# define LOAD_ARGS_4 LOAD_ARGS_3; mov.l @(12,r15),r7; cfi_restore (r7) -# define LOAD_ARGS_5 LOAD_ARGS_4 -# define LOAD_ARGS_6 LOAD_ARGS_5 - -# if IS_IN (libpthread) -# define __local_enable_asynccancel __pthread_enable_asynccancel -# define __local_disable_asynccancel __pthread_disable_asynccancel -# elif IS_IN (libc) -# define __local_enable_asynccancel __libc_enable_asynccancel -# define __local_disable_asynccancel __libc_disable_asynccancel -# elif IS_IN (librt) -# define __local_enable_asynccancel __librt_enable_asynccancel -# define __local_disable_asynccancel __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -# define CENABLE \ - mov.l 1f,r0; \ - bsrf r0; \ - nop; \ - 0: bra 2f; \ - mov r0,r2; \ - .align 2; \ - 1: .long __local_enable_asynccancel - 0b; \ - 2: - -# define CDISABLE \ - mov.l 1f,r0; \ - bsrf r0; \ - mov r2,r4; \ - 0: bra 2f; \ - nop; \ - .align 2; \ - 1: .long __local_disable_asynccancel - 0b; \ - 2: - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - stc gbr,r0; \ - mov.w 0f,r1; \ - sub r1,r0; \ - mov.l @(MULTIPLE_THREADS_OFFSET,r0),r0; \ - bra 1f; \ - tst r0,r0; \ - 0: .word TLS_PRE_TCB_SIZE; \ - 1: - -# endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h deleted file mode 100644 index c513212..0000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h +++ /dev/null @@ -1,111 +0,0 @@ -/* Copyright (C) 2002-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#ifndef __ASSEMBLER__ -# include -#endif - -#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - .globl __syscall_error; \ -ENTRY(name) \ - ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\ - cmp %g1, 0; \ - bne 1f; \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x10; \ - bcc 8f; \ - mov %o7, %g1; \ - call __syscall_error; \ - mov %g1, %o7; \ -8: jmpl %o7 + 8, %g0; \ - nop; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\ -1: save %sp, -96, %sp; \ - cfi_def_cfa_register(%fp); \ - cfi_window_save; \ - cfi_register(%o7, %i7); \ - CENABLE; \ - nop; \ - mov %o0, %l0; \ - COPY_ARGS_##args \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x10; \ - bcc 1f; \ - mov %o0, %l1; \ - CDISABLE; \ - mov %l0, %o0; \ - call __syscall_error; \ - mov %l1, %o0; \ - b 2f; \ - mov -1, %l1; \ -1: CDISABLE; \ - mov %l0, %o0; \ -2: jmpl %i7 + 8, %g0; \ - restore %g0, %l1, %o0; - - -# if IS_IN (libpthread) -# define CENABLE call __pthread_enable_asynccancel -# define CDISABLE call __pthread_disable_asynccancel -# elif IS_IN (libc) -# define CENABLE call __libc_enable_asynccancel -# define CDISABLE call __libc_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE call __librt_enable_asynccancel -# define CDISABLE call __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -#define COPY_ARGS_0 /* Nothing */ -#define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; -#define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; -#define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; -#define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; -#define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; -#define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 -# endif - -#elif !defined __ASSEMBLER__ - -# define SINGLE_THREAD_P (1) -# define NO_CANCELLATION 1 - -#endif - -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h deleted file mode 100644 index 45fbd73..0000000 --- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h +++ /dev/null @@ -1,109 +0,0 @@ -/* Copyright (C) 2002-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include -#include -#ifndef __ASSEMBLER__ -# include -#endif - -#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - .globl __syscall_error; \ -ENTRY(name) \ - ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\ - brnz,pn %g1, 1f; \ -.type __##syscall_name##_nocancel,@function; \ -.globl __##syscall_name##_nocancel; \ -__##syscall_name##_nocancel: \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x6d; \ - bcc,pt %xcc, 8f; \ - mov %o7, %g1; \ - call __syscall_error; \ - mov %g1, %o7; \ -8: jmpl %o7 + 8, %g0; \ - nop; \ -.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\ -1: save %sp, -192, %sp; \ - cfi_def_cfa_register(%fp); \ - cfi_window_save; \ - cfi_register(%o7, %i7); \ - CENABLE; \ - nop; \ - mov %o0, %l0; \ - COPY_ARGS_##args \ - mov SYS_ify(syscall_name), %g1; \ - ta 0x6d; \ - bcc,pt %xcc, 1f; \ - mov %o0, %l1; \ - CDISABLE; \ - mov %l0, %o0; \ - call __syscall_error; \ - mov %l1, %o0; \ - ba,pt %xcc, 2f; \ - mov -1, %l1; \ -1: CDISABLE; \ - mov %l0, %o0; \ -2: jmpl %i7 + 8, %g0; \ - restore %g0, %l1, %o0; - -# if IS_IN (libpthread) -# define CENABLE call __pthread_enable_asynccancel -# define CDISABLE call __pthread_disable_asynccancel -# elif IS_IN (libc) -# define CENABLE call __libc_enable_asynccancel -# define CDISABLE call __libc_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE call __librt_enable_asynccancel -# define CDISABLE call __librt_disable_asynccancel -# else -# error Unsupported library -# endif - -#define COPY_ARGS_0 /* Nothing */ -#define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; -#define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; -#define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; -#define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; -#define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; -#define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 -# endif - -#elif !defined __ASSEMBLER__ - -# define SINGLE_THREAD_P (1) -# define NO_CANCELLATION 1 - -#endif - -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h b/sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h new file mode 100644 index 0000000..61bfa33 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h @@ -0,0 +1,38 @@ +/* Copyright (C) 2002-2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek , 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include + +#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) + +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) + +#else + +# define SINGLE_THREAD_P (1) +# define NO_CANCELLATION 1 + +#endif + +#define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) diff --git a/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h b/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h index 092a90c..c8994db 100644 --- a/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/tile/sysdep-cancel.h @@ -18,137 +18,22 @@ #include #include -#ifndef __ASSEMBLER__ -# include -#endif +#include #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -/* Allow hacking in some extra code if desired. */ -#ifndef PSEUDO_EXTRA -#define PSEUDO_EXTRA -#endif - -#undef PSEUDO -#define PSEUDO(name, syscall_name, args) \ - ENTRY(__##syscall_name##_nocancel); \ - PSEUDO_EXTRA \ - moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name); \ - swint1; \ - BNEZ r1, 0f; \ - jrp lr; \ - END(__##syscall_name##_nocancel); \ - ENTRY (name) \ - SINGLE_THREAD_P(r11); \ - BEQZ r11, L(pseudo_cancel); \ - PSEUDO_EXTRA \ - moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name); \ - swint1; \ - BNEZ r1, 0f; \ - jrp lr; \ - L(pseudo_cancel): \ - { \ - move r11, sp; \ - ST sp, lr; \ - ADDI_PTR sp, sp, -STKSPACE; \ - }; \ - cfi_offset (lr, 0); \ - cfi_def_cfa_offset (STKSPACE); \ - { \ - ADDI_PTR r12, sp, REGSIZE; \ - ADDI_PTR r13, sp, 2 * REGSIZE; /* set up for PUSHARGS_0 */ \ - }; \ - ST r12, r11; \ - PUSHARGS_##args /* save syscall args */ \ - CENABLE; \ - ADDI_PTR r12, sp, 10 * REGSIZE; \ - { \ - ST r12, r0; /* save mask */ \ - ADDI_PTR r13, sp, 2 * REGSIZE; /* set up for POPARGS_0 */ \ - }; \ - POPARGS_##args /* restore syscall args */ \ - PSEUDO_EXTRA \ - moveli TREG_SYSCALL_NR_NAME, SYS_ify(syscall_name); \ - swint1; \ - ADDI_PTR r12, sp, 12 * REGSIZE; \ - { \ - ST r12, r1; /* save syscall result */ \ - ADDI_PTR r12, sp, 11 * REGSIZE; \ - }; \ - { \ - ST r12, r0; \ - ADDI_PTR r13, sp, 10 * REGSIZE; \ - }; \ - LD r0, r13; /* pass mask as arg1 */ \ - CDISABLE; \ - { \ - ADDI_PTR lr, sp, STKSPACE; \ - ADDI_PTR r0, sp, 11 * REGSIZE; \ - }; \ - { \ - LD r0, r0; \ - ADDI_PTR r1, sp, 12 * REGSIZE; \ - }; \ - LD r1, r1; \ - { \ - LD lr, lr; \ - ADDI_PTR sp, sp, STKSPACE; \ - }; \ - cfi_def_cfa_offset (0); \ - BNEZ r1, 0f - -# define PUSHARGS_0 /* nothing to do */ -# define PUSHARGS_1 PUSHARGS_0 { ADDI_PTR r14, sp, 3 * REGSIZE; ST r13, r0 }; -# define PUSHARGS_2 PUSHARGS_1 { ADDI_PTR r13, sp, 4 * REGSIZE; ST r14, r1 }; -# define PUSHARGS_3 PUSHARGS_2 { ADDI_PTR r14, sp, 5 * REGSIZE; ST r13, r2 }; -# define PUSHARGS_4 PUSHARGS_3 { ADDI_PTR r13, sp, 6 * REGSIZE; ST r14, r3 }; -# define PUSHARGS_5 PUSHARGS_4 { ADDI_PTR r14, sp, 7 * REGSIZE; ST r13, r4 }; -# define PUSHARGS_6 PUSHARGS_5 { ADDI_PTR r13, sp, 8 * REGSIZE; ST r14, r5 }; -# define PUSHARGS_7 PUSHARGS_6 { ADDI_PTR r14, sp, 9 * REGSIZE; ST r13, r6 }; - -# define POPARGS_0 /* nothing to do */ -# define POPARGS_1 POPARGS_0 { ADDI_PTR r14, sp, 3 * REGSIZE; LD r0, r13 }; -# define POPARGS_2 POPARGS_1 { ADDI_PTR r13, sp, 4 * REGSIZE; LD r1, r14 }; -# define POPARGS_3 POPARGS_2 { ADDI_PTR r14, sp, 5 * REGSIZE; LD r2, r13 }; -# define POPARGS_4 POPARGS_3 { ADDI_PTR r13, sp, 6 * REGSIZE; LD r3, r14 }; -# define POPARGS_5 POPARGS_4 { ADDI_PTR r14, sp, 7 * REGSIZE; LD r4, r13 }; -# define POPARGS_6 POPARGS_5 { ADDI_PTR r13, sp, 8 * REGSIZE; LD r5, r14 }; -# define POPARGS_7 POPARGS_6 { ADDI_PTR r14, sp, 9 * REGSIZE; LD r6, r13 }; - -# define STKSPACE (13 * REGSIZE) - -# if IS_IN (libpthread) -# define CENABLE jal __pthread_enable_asynccancel -# define CDISABLE jal __pthread_disable_asynccancel -# elif IS_IN (librt) -# define CENABLE jal __librt_enable_asynccancel -# define CDISABLE jal __librt_disable_asynccancel -# else -# define CENABLE jal __libc_enable_asynccancel -# define CDISABLE jal __libc_disable_asynccancel -# endif - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) \ == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ADDLI_PTR reg, tp, MULTIPLE_THREADS_OFFSET; \ - LD reg, reg; \ - CMPEQI reg, reg, 0 -#endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P 1 # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif diff --git a/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h b/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h index 6598010..0979bde 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h +++ b/sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h @@ -24,86 +24,32 @@ #if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt) -/* The code to disable cancellation depends on the fact that the called - functions are special. They don't modify registers other than %rax - and %r11 if they return. Therefore we don't have to preserve other - registers around these calls. */ -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ - ENTRY (name) \ - SINGLE_THREAD_P; \ - jne L(pseudo_cancel); \ - .type __##syscall_name##_nocancel,@function; \ - .globl __##syscall_name##_nocancel; \ - __##syscall_name##_nocancel: \ - DO_CALL (syscall_name, args); \ - cmpq $-4095, %rax; \ - jae SYSCALL_ERROR_LABEL; \ - ret; \ - .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ - L(pseudo_cancel): \ - /* We always have to align the stack before calling a function. */ \ - subq $8, %rsp; cfi_adjust_cfa_offset (8); \ - CENABLE \ - /* The return value from CENABLE is argument for CDISABLE. */ \ - movq %rax, (%rsp); \ - DO_CALL (syscall_name, args); \ - movq (%rsp), %rdi; \ - /* Save %rax since it's the error code from the syscall. */ \ - movq %rax, %rdx; \ - CDISABLE \ - movq %rdx, %rax; \ - addq $8,%rsp; cfi_adjust_cfa_offset (-8); \ - cmpq $-4095, %rax; \ - jae SYSCALL_ERROR_LABEL - - # if IS_IN (libpthread) -# define CENABLE call __pthread_enable_asynccancel; -# define CDISABLE call __pthread_disable_asynccancel; # define __local_multiple_threads __pthread_multiple_threads # elif IS_IN (libc) -# define CENABLE call __libc_enable_asynccancel; -# define CDISABLE call __libc_disable_asynccancel; # define __local_multiple_threads __libc_multiple_threads # elif IS_IN (librt) -# define CENABLE call __librt_enable_asynccancel; -# define CDISABLE call __librt_disable_asynccancel; # else # error Unsupported library # endif # if IS_IN (libpthread) || IS_IN (libc) -# ifndef __ASSEMBLER__ extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads(%rip) -# endif - # else - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P cmpl $0, %fs:MULTIPLE_THREADS_OFFSET -# endif - # endif -#elif !defined __ASSEMBLER__ +#else # define SINGLE_THREAD_P (1) # define NO_CANCELLATION 1 #endif -#ifndef __ASSEMBLER__ -# define RTLD_SINGLE_THREAD_P \ +#define RTLD_SINGLE_THREAD_P \ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ header.multiple_threads) == 0, 1) -#endif