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Mon, 17 May 2021 14:15:00 -0400 Received: from quad ([82.142.31.78]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.183]) with ESMTPSA (Nemesis) id 1Mgf8s-1lH42w0rS0-00h2rK; Mon, 17 May 2021 20:14:42 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Subject: [PULL 31/59] linux-user/sparc: Implement sparc64 rt signals Date: Mon, 17 May 2021 20:13:56 +0200 Message-Id: <20210517181424.8093-32-laurent@vivier.eu> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210517181424.8093-1-laurent@vivier.eu> References: <20210517181424.8093-1-laurent@vivier.eu> MIME-Version: 1.0 X-Provags-ID: V03:K1:zFsJ3/YCp0xRqELRTZRHyklHQ0T+8cRIL1iMtDqRm6bzMdls9wf eQ3f9R78SjN4+FUBw45CUSsu28RvhE9SmR/meK61KS1dreHb2qEzZqDmNZOSw2weeCU+Os6 Xq3xeEye0exybe2GjP7DRAGPH0deEfJQab9qRK18gE5t4NGT3Qaxb0/DjHzFOJDPmnWv6ka GS4iEwlOkI9AEcbuQigGw== X-UI-Out-Filterresults: notjunk:1; V03:K0:PJfrkfkM2og=:tPiZ4ov72aMrTDI53v9UGQ GlItALMKorweOUSFYZ6RtxLkGaP3mgBQ3I62NNigPlRSKvZnA7Qs3ScfQWeg2ynTAWVhTwQXl daO9tYLAIup5ib/cJV9ge5/l4xhbvlRZh+W/YxJuQL/cZh1GcF/o2dLzmkvOVUxL+uN27q2J7 uf6urT8t6224gVmkECB8uujFfSlKWhGDhEu2Bs4YjA1w5Y+jmZv+OzzjhBc/7cseEJtdUFeye V5h6nd6tfa0m3TEnUXnf6qbwBo9ZM+qSIb7stJftUnoEY+V3KyjiUvjoe7H/Rzh8l/k0EX149 z80LErIhv6aEIQlK4bma5aQmuNnER4WMKXRspQf/hl5rOHXS8bztjfsgXkUijxfbGiXSoCeI4 zOxFQTKDOssT69MhnrWFHaHSEi4ehMno32BVTcG0SvrJAmiWws/w33nNNLB/lM7+gOYtIguF3 +QiR8jmHSoUivy9ud6HG5Ty8eVQautPAQk2jN6BG4AP94mlFIhVftcJzkgH82JHq2FkTdJMQz xHPSRdTsFAkCa7jSjwA7LE= Received-SPF: none client-ip=212.227.17.24; envelope-from=laurent@vivier.eu; helo=mout.kundenserver.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Richard Henderson , Laurent Vivier Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson Signed-off-by: Richard Henderson Message-Id: <20210426025334.1168495-25-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier --- linux-user/sparc/signal.c | 27 ++++++++++++++++++++++++++- linux-user/sparc/target_signal.h | 2 ++ 2 files changed, 28 insertions(+), 1 deletion(-) -- 2.31.1 diff --git a/linux-user/sparc/signal.c b/linux-user/sparc/signal.c index 362993da0281..0cc3db5570e8 100644 --- a/linux-user/sparc/signal.c +++ b/linux-user/sparc/signal.c @@ -61,6 +61,7 @@ struct target_siginfo_fpu { #endif }; +#ifdef TARGET_ARCH_HAS_SETUP_FRAME struct target_signal_frame { struct target_stackf ss; struct target_pt_regs regs; @@ -71,16 +72,23 @@ struct target_signal_frame { abi_ulong extra_size; /* Should be 0 */ abi_ulong rwin_save; }; +#endif struct target_rt_signal_frame { struct target_stackf ss; target_siginfo_t info; struct target_pt_regs regs; +#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32) + abi_ulong fpu_save; + target_stack_t stack; + target_sigset_t mask; +#else target_sigset_t mask; abi_ulong fpu_save; uint32_t insns[2]; target_stack_t stack; abi_ulong extra_size; /* Should be 0 */ +#endif abi_ulong rwin_save; }; @@ -232,6 +240,7 @@ static void restore_fpu(struct target_siginfo_fpu *fpu, CPUSPARCState *env) #endif } +#ifdef TARGET_ARCH_HAS_SETUP_FRAME void setup_frame(int sig, struct target_sigaction *ka, target_sigset_t *set, CPUSPARCState *env) { @@ -291,6 +300,7 @@ void setup_frame(int sig, struct target_sigaction *ka, } unlock_user(sf, sf_addr, sf_size); } +#endif /* TARGET_ARCH_HAS_SETUP_FRAME */ void setup_rt_frame(int sig, struct target_sigaction *ka, target_siginfo_t *info, @@ -322,21 +332,28 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, tswap_sigset(&sf->mask, set); target_save_altstack(&sf->stack, env); +#ifdef TARGET_ABI32 __put_user(0, &sf->extra_size); +#endif /* 3. signal handler back-trampoline and parameters */ - env->regwptr[WREG_SP] = sf_addr; + env->regwptr[WREG_SP] = sf_addr - TARGET_STACK_BIAS; env->regwptr[WREG_O0] = sig; env->regwptr[WREG_O1] = sf_addr + offsetof(struct target_rt_signal_frame, info); +#ifdef TARGET_ABI32 env->regwptr[WREG_O2] = sf_addr + offsetof(struct target_rt_signal_frame, regs); +#else + env->regwptr[WREG_O2] = env->regwptr[WREG_O1]; +#endif /* 4. signal handler */ env->pc = ka->_sa_handler; env->npc = env->pc + 4; /* 5. return to kernel instructions */ +#ifdef TARGET_ABI32 if (ka->ka_restorer) { env->regwptr[WREG_O7] = ka->ka_restorer; } else { @@ -348,11 +365,16 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, /* t 0x10 */ __put_user(0x91d02010u, &sf->insns[1]); } +#else + env->regwptr[WREG_O7] = ka->ka_restorer; +#endif + unlock_user(sf, sf_addr, sf_size); } long do_sigreturn(CPUSPARCState *env) { +#ifdef TARGET_ARCH_HAS_SETUP_FRAME abi_ulong sf_addr; struct target_signal_frame *sf = NULL; abi_ulong pc, npc, ptr; @@ -416,6 +438,9 @@ long do_sigreturn(CPUSPARCState *env) unlock_user_struct(sf, sf_addr, 0); force_sig(TARGET_SIGSEGV); return -TARGET_QEMU_ESIGRETURN; +#else + return -TARGET_ENOSYS; +#endif } long do_rt_sigreturn(CPUSPARCState *env) diff --git a/linux-user/sparc/target_signal.h b/linux-user/sparc/target_signal.h index 911a3f5af55e..34f9a1251909 100644 --- a/linux-user/sparc/target_signal.h +++ b/linux-user/sparc/target_signal.h @@ -67,7 +67,9 @@ typedef struct target_sigaltstack { #define TARGET_MINSIGSTKSZ 4096 #define TARGET_SIGSTKSZ 16384 +#ifdef TARGET_ABI32 #define TARGET_ARCH_HAS_SETUP_FRAME +#endif /* bit-flags */ #define TARGET_SS_AUTODISARM (1U << 31) /* disable sas during sighandling */