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Tue, 29 Sep 2015 22:16:22 +0000 From: Yury Norov To: , , , , , Subject: [PATCH v5 07/23] arm64:ilp32: share signal structures between ILP32 and LP64 ABIs Date: Wed, 30 Sep 2015 01:14:04 +0300 Message-ID: <1443564860-31208-8-git-send-email-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1443564860-31208-1-git-send-email-ynorov@caviumnetworks.com> References: <1443564860-31208-1-git-send-email-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [91.78.158.8] X-ClientProxiedBy: HE1PR03CA0034.eurprd03.prod.outlook.com (25.163.170.172) To CO2PR07MB618.namprd07.prod.outlook.com (10.141.228.149) X-Microsoft-Exchange-Diagnostics: 1; CO2PR07MB618; 2:PFAsyLRdUz7W8EDhdS4ARMLHqYJThu/+Mk0VmCSF2yWTBDYNpH99oXymLdurgTUL3T3te/ioynnC+4bNE78eOw+7PK/ZaS38PQThXCZYG3oK6pZR050anTVzn7oh8vzRQhXZTVzyoyxu68kg7Q/8IRU+51NV8bByUh/P4pnnVI8=; 3:8GxiS+MFlkByms0+FtyPe2BbDOQ/zYlFHuqlp27mgFuGXJE9T8L7bvY7jTsnlZokq+1fg9Zlzsz5NURODp0ZXyoBTwBlIw5CbfSNNlQPlM+ZmzAzmQJyKKzK66KrI/VbXqe7+bD6BFJ5ls7sC5ZcxA==; 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X-Original-Sender: patch@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.215.46 as permitted sender) smtp.mailfrom=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 From: Andrew Pinski Defines the macros which allow the signal structures to be the same between ILP32 and LP64. Signed-off-by: Philipp Tomsich Signed-off-by: Christoph Muellner Signed-off-by: Yury Norov diff --git a/arch/arm64/include/uapi/asm/siginfo.h b/arch/arm64/include/uapi/asm/siginfo.h index 5a74a08..1a6aa32 100644 --- a/arch/arm64/include/uapi/asm/siginfo.h +++ b/arch/arm64/include/uapi/asm/siginfo.h @@ -1,5 +1,6 @@ /* * Copyright (C) 2012 ARM Ltd. + * Copyright (C) 2014 Cavium Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -18,6 +19,26 @@ #define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +#ifdef __ILP32__ +# ifdef __AARCH64EB__ +# define __SIGINFO_INNER(type, field) \ + int __pad#field; \ + type field +# else +# define __SIGINFO_INNER(type, field) \ + type field; \ + int __pad#field +# endif + +# undef __SIGINFO_VOIDPOINTER +# define __SIGINFO_VOIDPOINTER(field) \ + __SIGINFO_INNER(void __user*, field) +# undef __SIGINFO_BAND + +# define __SIGINFO_BAND(field) \ + __SIGINFO_INNER(long, field) +#endif + #include #endif diff --git a/arch/arm64/include/uapi/asm/signal.h b/arch/arm64/include/uapi/asm/signal.h index 8d1e723..d90d53b 100644 --- a/arch/arm64/include/uapi/asm/signal.h +++ b/arch/arm64/include/uapi/asm/signal.h @@ -19,6 +19,38 @@ /* Required for AArch32 compatibility. */ #define SA_RESTORER 0x04000000 +/* For ILP32, sigset should be the same size fields as LP64 so use + unsigned long long. */ +#ifdef __ILP32__ +#define __SIGSET_INNER_TYPE __extension__ unsigned long long +#define _NSIG_BPW 64 + +# ifdef __AARCH64EB__ +# define __SIGNAL_INNER(type, field) \ + __extension__ struct { \ + int __pad_##field; \ + type field; \ + } __attribute__((aligned(8))) +# else +# define __SIGNAL_INNER(type, field) \ + __extension__ struct { \ + type field; \ + int __pad_##field; \ + } __attribute__((aligned(8))) +# endif + +# define __SIGACTION_HANDLER(field) \ + __SIGNAL_INNER(__sighandler_t, field) + + +#define __SIGACTION_FLAGS(field) \ + __extension__ unsigned long long field + +#define __SIGACTION_RESTORER(field) \ + __SIGNAL_INNER(__sigrestore_t, field) + +#endif + #include #endif diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h index 1e35520..be640a9 100644 --- a/include/uapi/asm-generic/siginfo.h +++ b/include/uapi/asm-generic/siginfo.h @@ -4,9 +4,17 @@ #include #include +#ifndef __SIGINFO_VOIDPOINTER +#define __SIGINFO_VOIDPOINTER(field) void __user *field +#endif + +#ifndef __SIGINFO_BAND +#define __SIGINFO_BAND(field) __ARCH_SI_BAND_T field +#endif + typedef union sigval { int sival_int; - void __user *sival_ptr; + __SIGINFO_VOIDPOINTER(sival_ptr); } sigval_t; /* @@ -86,7 +94,7 @@ typedef struct siginfo { /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ struct { - void __user *_addr; /* faulting insn/memory ref. */ + __SIGINFO_VOIDPOINTER(_addr); /* faulting insn/memory ref. */ #ifdef __ARCH_SI_TRAPNO int _trapno; /* TRAP # which caused the signal */ #endif @@ -99,13 +107,13 @@ typedef struct siginfo { /* SIGPOLL */ struct { - __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */ + __SIGINFO_BAND(_band); /* POLL_IN, POLL_OUT, POLL_MSG */ int _fd; } _sigpoll; /* SIGSYS */ struct { - void __user *_call_addr; /* calling user insn */ + __SIGINFO_VOIDPOINTER(_call_addr); /* calling user insn */ int _syscall; /* triggering system call number */ unsigned int _arch; /* AUDIT_ARCH_* of syscall */ } _sigsys; @@ -290,6 +298,7 @@ typedef struct sigevent { int _pad[SIGEV_PAD_SIZE]; int _tid; + /* Note these two are handled only in userspace */ struct { void (*_function)(sigval_t); void *_attribute; /* really pthread_attr_t */ diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h index 9df61f1..c4ce238 100644 --- a/include/uapi/asm-generic/signal.h +++ b/include/uapi/asm-generic/signal.h @@ -4,7 +4,9 @@ #include #define _NSIG 64 +#ifndef _NSIG_BPW #define _NSIG_BPW __BITS_PER_LONG +#endif #define _NSIG_WORDS (_NSIG / _NSIG_BPW) #define SIGHUP 1 @@ -83,9 +85,13 @@ #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 +#ifndef __SIGSET_INNER_TYPE +#define __SIGSET_INNER_TYPE unsigned long +#endif + #ifndef __ASSEMBLY__ typedef struct { - unsigned long sig[_NSIG_WORDS]; + __SIGSET_INNER_TYPE sig[_NSIG_WORDS]; } sigset_t; /* not actually used, but required for linux/syscalls.h */ @@ -98,11 +104,24 @@ typedef unsigned long old_sigset_t; #endif #ifndef __KERNEL__ + +#ifndef __SIGACTION_HANDLER +#define __SIGACTION_HANDLER(field) __sighandler_t field +#endif + +#ifndef __SIGACTION_FLAGS +#define __SIGACTION_FLAGS(field) unsigned long field +#endif + +#ifndef __SIGACTION_RESTORER +#define __SIGACTION_RESTORER(field) __sigrestore_t field +#endif + struct sigaction { - __sighandler_t sa_handler; - unsigned long sa_flags; + __SIGACTION_HANDLER(sa_handler); + __SIGACTION_FLAGS(sa_flags); #ifdef SA_RESTORER - __sigrestore_t sa_restorer; + __SIGACTION_RESTORER(sa_restorer); #endif sigset_t sa_mask; /* mask last for extensibility */ };