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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-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: peter.maydell@linaro.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Unlike glibc, musl does not use transparent unions to hide the different structures that overlap struct sockaddr. Add an explicit cast to work around this. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- tests/tcg/multiarch/linux-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/tcg/multiarch/linux-test.c b/tests/tcg/multiarch/linux-t= est.c index 8a7c15cd31..96bbad5823 100644 --- a/tests/tcg/multiarch/linux-test.c +++ b/tests/tcg/multiarch/linux-test.c @@ -296,7 +296,7 @@ static void test_socket(void) server_fd =3D server_socket(); /* find out what port we got */ socklen =3D sizeof(server_addr); - ret =3D getsockname(server_fd, &server_addr, &socklen); + ret =3D getsockname(server_fd, (struct sockaddr *)&server_addr, &sockl= en); chk_error(ret); server_port =3D ntohs(server_addr.sin_port); =20 --=20 2.25.1 From nobody Mon Feb 9 13:44:59 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; 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Wed, 14 Oct 2020 21:52:12 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 2/3] linux-user/microblaze: Implement rt signal frames Date: Wed, 14 Oct 2020 21:52:07 -0700 Message-Id: <20201015045208.595044-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201015045208.595044-1-richard.henderson@linaro.org> References: <20201015045208.595044-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: pass client-ip=2607:f8b0:4864:20::441; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x441.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-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: "Edgar E . Iglesias" , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Allows microblaze to pass tests/tcg/multiarch/linux-test.c. Tested-by: Edgar E. Iglesias Reviewed-by: Edgar E. Iglesias Signed-off-by: Richard Henderson --- linux-user/microblaze/signal.c | 91 ++++++++++++++++++++++++++++++---- 1 file changed, 82 insertions(+), 9 deletions(-) diff --git a/linux-user/microblaze/signal.c b/linux-user/microblaze/signal.c index b4eeef4673..3d316a22f1 100644 --- a/linux-user/microblaze/signal.c +++ b/linux-user/microblaze/signal.c @@ -35,9 +35,9 @@ struct target_stack_t { struct target_ucontext { abi_ulong tuc_flags; abi_ulong tuc_link; - struct target_stack_t tuc_stack; + target_stack_t tuc_stack; struct target_sigcontext tuc_mcontext; - uint32_t tuc_extramask[TARGET_NSIG_WORDS - 1]; + target_sigset_t tuc_sigmask; }; =20 /* Signal frames. */ @@ -47,9 +47,9 @@ struct target_signal_frame { uint32_t tramp[2]; }; =20 -struct rt_signal_frame { - siginfo_t info; - ucontext_t uc; +struct target_rt_sigframe { + target_siginfo_t info; + struct target_ucontext uc; uint32_t tramp[2]; }; =20 @@ -200,7 +200,55 @@ void setup_rt_frame(int sig, struct target_sigaction *= ka, target_siginfo_t *info, target_sigset_t *set, CPUMBState *env) { - qemu_log_mask(LOG_UNIMP, "setup_rt_frame: not implemented\n"); + struct target_rt_sigframe *frame; + abi_ulong frame_addr; + + frame_addr =3D get_sigframe(ka, env, sizeof *frame); + trace_user_setup_rt_frame(env, frame_addr); + + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + force_sigsegv(sig); + return; + } + + tswap_siginfo(&frame->info, info); + + __put_user(0, &frame->uc.tuc_flags); + __put_user(0, &frame->uc.tuc_link); + + target_save_altstack(&frame->uc.tuc_stack, env); + setup_sigcontext(&frame->uc.tuc_mcontext, env); + + for (int i =3D 0; i < TARGET_NSIG_WORDS; i++) { + __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]); + } + + /* Kernel does not use SA_RESTORER. */ + + /* addi r12, r0, __NR_sigreturn */ + __put_user(0x31800000U | TARGET_NR_rt_sigreturn, frame->tramp + 0); + /* brki r14, 0x8 */ + __put_user(0xb9cc0008U, frame->tramp + 1); + + /* + * Return from sighandler will jump to the tramp. + * Negative 8 offset because return is rtsd r15, 8 + */ + env->regs[15] =3D + frame_addr + offsetof(struct target_rt_sigframe, tramp) - 8; + + /* Set up registers for signal handler */ + env->regs[1] =3D frame_addr; + + /* Signal handler args: */ + env->regs[5] =3D sig; + env->regs[6] =3D frame_addr + offsetof(struct target_rt_sigframe, info= ); + env->regs[7] =3D frame_addr + offsetof(struct target_rt_sigframe, uc); + + /* Offset to handle microblaze rtid r14, 0 */ + env->pc =3D (unsigned long)ka->_sa_handler; + + unlock_user_struct(frame, frame_addr, 1); } =20 long do_sigreturn(CPUMBState *env) @@ -239,7 +287,32 @@ badframe: =20 long do_rt_sigreturn(CPUMBState *env) { - trace_user_do_rt_sigreturn(env, 0); - qemu_log_mask(LOG_UNIMP, "do_rt_sigreturn: not implemented\n"); - return -TARGET_ENOSYS; + struct target_rt_sigframe *frame =3D NULL; + abi_ulong frame_addr =3D env->regs[1]; + sigset_t set; + + trace_user_do_rt_sigreturn(env, frame_addr); + + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } + + target_to_host_sigset(&set, &frame->uc.tuc_sigmask); + set_sigmask(&set); + + restore_sigcontext(&frame->uc.tuc_mcontext, env); + + if (do_sigaltstack(frame_addr + + offsetof(struct target_rt_sigframe, uc.tuc_stack), + 0, get_sp_from_cpustate(env)) =3D=3D -EFAULT) { + goto badframe; + } + + unlock_user_struct(frame, frame_addr, 0); + return -TARGET_QEMU_ESIGRETURN; + + badframe: + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV); + return -TARGET_QEMU_ESIGRETURN; } --=20 2.25.1 From nobody Mon Feb 9 13:44:59 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1602737674; cv=none; d=zohomail.com; s=zohoarc; b=fORQbcowJYROQHqcKOt8t0sb/K36SUaHsV4nhZzhrf9AMnwmT1e3h6vDSvXRb/8vsvXL3N1NFdlds0QXlWaivQ/aN6+ybfWaEcXajJBdgCD4c5FyUmhdSwg/SmEMx2vcW137AWu5wNJCj5G0M9gMX/q7HY3hqOVj7aWPQS5Xx28= ARC-Message-Signature: i=1; a=rsa-sha256; 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Wed, 14 Oct 2020 21:52:14 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 3/3] linux-user/microblaze: Remove non-rt signal frames Date: Wed, 14 Oct 2020 21:52:08 -0700 Message-Id: <20201015045208.595044-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201015045208.595044-1-richard.henderson@linaro.org> References: <20201015045208.595044-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: pass client-ip=2607:f8b0:4864:20::443; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x443.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-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: "Edgar E . Iglesias" , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The microblaze kernel does not support these, and uses only rt style signal frames. Tested-by: Edgar E. Iglesias Reviewed-by: Edgar E. Iglesias Signed-off-by: Richard Henderson --- linux-user/microblaze/target_signal.h | 1 - linux-user/microblaze/signal.c | 97 +-------------------------- 2 files changed, 2 insertions(+), 96 deletions(-) diff --git a/linux-user/microblaze/target_signal.h b/linux-user/microblaze/= target_signal.h index 35efd5e928..08bcf24b9d 100644 --- a/linux-user/microblaze/target_signal.h +++ b/linux-user/microblaze/target_signal.h @@ -21,5 +21,4 @@ typedef struct target_sigaltstack { =20 #include "../generic/signal.h" =20 -#define TARGET_ARCH_HAS_SETUP_FRAME #endif /* MICROBLAZE_TARGET_SIGNAL_H */ diff --git a/linux-user/microblaze/signal.c b/linux-user/microblaze/signal.c index 3d316a22f1..cf0707b556 100644 --- a/linux-user/microblaze/signal.c +++ b/linux-user/microblaze/signal.c @@ -41,12 +41,6 @@ struct target_ucontext { }; =20 /* Signal frames. */ -struct target_signal_frame { - struct target_ucontext uc; - uint32_t extramask[TARGET_NSIG_WORDS - 1]; - uint32_t tramp[2]; -}; - struct target_rt_sigframe { target_siginfo_t info; struct target_ucontext uc; @@ -137,65 +131,6 @@ static abi_ulong get_sigframe(struct target_sigaction = *ka, return ((sp - frame_size) & -8UL); } =20 -void setup_frame(int sig, struct target_sigaction *ka, - target_sigset_t *set, CPUMBState *env) -{ - struct target_signal_frame *frame; - abi_ulong frame_addr; - int i; - - frame_addr =3D get_sigframe(ka, env, sizeof *frame); - trace_user_setup_frame(env, frame_addr); - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) - goto badframe; - - /* Save the mask. */ - __put_user(set->sig[0], &frame->uc.tuc_mcontext.oldmask); - - for(i =3D 1; i < TARGET_NSIG_WORDS; i++) { - __put_user(set->sig[i], &frame->extramask[i - 1]); - } - - setup_sigcontext(&frame->uc.tuc_mcontext, env); - - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - /* minus 8 is offset to cater for "rtsd r15,8" offset */ - if (ka->sa_flags & TARGET_SA_RESTORER) { - env->regs[15] =3D ((unsigned long)ka->sa_restorer)-8; - } else { - uint32_t t; - /* Note, these encodings are _big endian_! */ - /* addi r12, r0, __NR_sigreturn */ - t =3D 0x31800000UL | TARGET_NR_sigreturn; - __put_user(t, frame->tramp + 0); - /* brki r14, 0x8 */ - t =3D 0xb9cc0008UL; - __put_user(t, frame->tramp + 1); - - /* Return from sighandler will jump to the tramp. - Negative 8 offset because return is rtsd r15, 8 */ - env->regs[15] =3D frame_addr + offsetof(struct target_signal_frame= , tramp) - - 8; - } - - /* Set up registers for signal handler */ - env->regs[1] =3D frame_addr; - /* Signal handler args: */ - env->regs[5] =3D sig; /* Arg 0: signum */ - env->regs[6] =3D 0; - /* arg 1: sigcontext */ - env->regs[7] =3D frame_addr +=3D offsetof(typeof(*frame), uc); - - /* Offset of 4 to handle microblaze rtid r14, 0 */ - env->pc =3D (unsigned long)ka->_sa_handler; - - unlock_user_struct(frame, frame_addr, 1); - return; -badframe: - force_sigsegv(sig); -} - void setup_rt_frame(int sig, struct target_sigaction *ka, target_siginfo_t *info, target_sigset_t *set, CPUMBState *env) @@ -251,38 +186,10 @@ void setup_rt_frame(int sig, struct target_sigaction = *ka, unlock_user_struct(frame, frame_addr, 1); } =20 + long do_sigreturn(CPUMBState *env) { - struct target_signal_frame *frame; - abi_ulong frame_addr; - target_sigset_t target_set; - sigset_t set; - int i; - - frame_addr =3D env->regs[R_SP]; - trace_user_do_sigreturn(env, frame_addr); - /* Make sure the guest isn't playing games. */ - if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 1)) - goto badframe; - - /* Restore blocked signals */ - __get_user(target_set.sig[0], &frame->uc.tuc_mcontext.oldmask); - for(i =3D 1; i < TARGET_NSIG_WORDS; i++) { - __get_user(target_set.sig[i], &frame->extramask[i - 1]); - } - target_to_host_sigset_internal(&set, &target_set); - set_sigmask(&set); - - restore_sigcontext(&frame->uc.tuc_mcontext, env); - /* We got here through a sigreturn syscall, our path back is via an - rtb insn so setup r14 for that. */ - env->regs[14] =3D env->pc; - - unlock_user_struct(frame, frame_addr, 0); - return -TARGET_QEMU_ESIGRETURN; -badframe: - force_sig(TARGET_SIGSEGV); - return -TARGET_QEMU_ESIGRETURN; + return -TARGET_ENOSYS; } =20 long do_rt_sigreturn(CPUMBState *env) --=20 2.25.1