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Tue, 18 May 2021 07:31:48 +0200 From: Laurent Vivier To: qemu-devel@nongnu.org Subject: [PULL 31/59] linux-user/sparc: Implement sparc64 rt signals Date: Tue, 18 May 2021 07:31:03 +0200 Message-Id: <20210518053131.87212-32-laurent@vivier.eu> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210518053131.87212-1-laurent@vivier.eu> References: <20210518053131.87212-1-laurent@vivier.eu> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:9qQKTiCwx+AMz9H92rw+WPETdOsjBQVsDKIF5oBd9PUW9lS92/s sUT1QUpF0RSW4rI4uvMwiyMhwxZS/K+sOpGDq56o4juQFJ+3n7VBgLfq+Dn6JYPl8yHWaeK 2m7GdC8XgKay74gdd3XQiuc/jGyJSnGciYbM2LR7UU865OZ58mE9I7lkaDMzRK6gZ2FIqLX 8Q40pLdwMKBOIiYFjXsxQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:SVKOrcXhP0I=:K/tUwSNmN/+38b75S7t1r1 kMLRwukGgdtCw1FdRCBwSk0X+cVwjfxQ8h6t6C0o8e0SaUtaVCK5cTVw+t8q0bm4sNT58PhRo QZ2Z/yjXkPdxJppRCaoHTSLKtkHD4N+qGQpmh0J1M3C9q3j9fVSYK9NdHI7r4mP0A6QNGGxeE cNMaSMyIsYFQhx/kH5rhnyxBv3gPL8Yv+qythzJ+3+yxnXRaOW/jE0Tiy3G7+K8xTaulnrTVp CL/yf4u+7fwwgdAqgax42Uo3RibJ/Fd2gAZsFq4VO4Jcqa7yynYSNAj/+sO4dxbLkAL1SWuip Q53OZ1acXz/D7J37OkdhAB61gKmnfHYU0ftb8cYCXv55XCDiia63kpruz4PAM4aU3eHaxRijt Anu/GcIvH0gwKt9H6xWUpuEW5BYIEuV8e+z9jNDGPaqQB3oZ5PjSXg5I5fITXWVozxPulArlI CWWJLFe4XmZ4eQtnDp8nXMCv/3o/45VdYU1TF57Qx2IqUf4mhJbfIuXWRLatAucs3bRUm8sGw NDFjvXmSV9cVXi9pyge0EM= Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=212.227.126.134; 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, RCVD_IN_MSPIKE_H2=-0.001, 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" 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(-) 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 }; =20 +#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 =20 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; }; =20 @@ -232,6 +240,7 @@ static void restore_fpu(struct target_siginfo_fpu *fpu,= CPUSPARCState *env) #endif } =20 +#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 */ =20 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); =20 +#ifdef TARGET_ABI32 __put_user(0, &sf->extra_size); +#endif =20 /* 3. signal handler back-trampoline and parameters */ - env->regwptr[WREG_SP] =3D sf_addr; + env->regwptr[WREG_SP] =3D sf_addr - TARGET_STACK_BIAS; env->regwptr[WREG_O0] =3D sig; env->regwptr[WREG_O1] =3D sf_addr + offsetof(struct target_rt_signal_frame, info); +#ifdef TARGET_ABI32 env->regwptr[WREG_O2] =3D sf_addr + offsetof(struct target_rt_signal_frame, regs); +#else + env->regwptr[WREG_O2] =3D env->regwptr[WREG_O1]; +#endif =20 /* 4. signal handler */ env->pc =3D ka->_sa_handler; env->npc =3D env->pc + 4; =20 /* 5. return to kernel instructions */ +#ifdef TARGET_ABI32 if (ka->ka_restorer) { env->regwptr[WREG_O7] =3D 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] =3D ka->ka_restorer; +#endif + unlock_user(sf, sf_addr, sf_size); } =20 long do_sigreturn(CPUSPARCState *env) { +#ifdef TARGET_ARCH_HAS_SETUP_FRAME abi_ulong sf_addr; struct target_signal_frame *sf =3D 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 } =20 long do_rt_sigreturn(CPUSPARCState *env) diff --git a/linux-user/sparc/target_signal.h b/linux-user/sparc/target_sig= nal.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 =20 +#ifdef TARGET_ABI32 #define TARGET_ARCH_HAS_SETUP_FRAME +#endif =20 /* bit-flags */ #define TARGET_SS_AUTODISARM (1U << 31) /* disable sas during sighandling = */ --=20 2.31.1