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Wed, 28 Apr 2021 12:34:15 -0700 (PDT) Received: from localhost.localdomain ([71.212.144.24]) by smtp.gmail.com with ESMTPSA id h21sm403725pfo.211.2021.04.28.12.34.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Apr 2021 12:34:14 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 09/15] linux-user/s390x: Clean up single-use gotos in signal.c Date: Wed, 28 Apr 2021 12:34:02 -0700 Message-Id: <20210428193408.233706-10-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210428193408.233706-1-richard.henderson@linaro.org> References: <20210428193408.233706-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42e; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42e.google.com 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=unavailable 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: thuth@redhat.com, qemu-s390x@nongnu.org, cohuck@redhat.com, laurent@vivier.eu, david@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Richard Henderson --- linux-user/s390x/signal.c | 29 ++++++++--------------------- 1 file changed, 8 insertions(+), 21 deletions(-) diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c index eabfe4293f..64a9eab097 100644 --- a/linux-user/s390x/signal.c +++ b/linux-user/s390x/signal.c @@ -137,7 +137,8 @@ void setup_frame(int sig, struct target_sigaction *ka, frame_addr = get_sigframe(ka, env, sizeof(*frame)); trace_user_setup_frame(env, frame_addr); if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { - goto give_sigsegv; + force_sigsegv(sig); + return; } __put_user(set->sig[0], &frame->sc.oldmask[0]); @@ -174,10 +175,6 @@ void setup_frame(int sig, struct target_sigaction *ka, /* Place signal number on stack to allow backtrace from handler. */ __put_user(env->regs[2], &frame->signo); unlock_user_struct(frame, frame_addr, 1); - return; - -give_sigsegv: - force_sigsegv(sig); } void setup_rt_frame(int sig, struct target_sigaction *ka, @@ -190,7 +187,8 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, frame_addr = get_sigframe(ka, env, sizeof *frame); trace_user_setup_rt_frame(env, frame_addr); if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { - goto give_sigsegv; + force_sigsegv(sig); + return; } tswap_siginfo(&frame->info, info); @@ -222,10 +220,6 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, env->regs[2] = sig; //map_signal(sig); env->regs[3] = frame_addr + offsetof(typeof(*frame), info); env->regs[4] = frame_addr + offsetof(typeof(*frame), uc); - return; - -give_sigsegv: - force_sigsegv(sig); } static void restore_sigregs(CPUS390XState *env, target_sigregs *sc) @@ -259,7 +253,8 @@ long do_sigreturn(CPUS390XState *env) trace_user_do_sigreturn(env, frame_addr); if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { - goto badframe; + force_sig(TARGET_SIGSEGV); + return -TARGET_QEMU_ESIGRETURN; } __get_user(target_set.sig[0], &frame->sc.oldmask[0]); @@ -270,10 +265,6 @@ long do_sigreturn(CPUS390XState *env) unlock_user_struct(frame, frame_addr, 0); return -TARGET_QEMU_ESIGRETURN; - -badframe: - force_sig(TARGET_SIGSEGV); - return -TARGET_QEMU_ESIGRETURN; } long do_rt_sigreturn(CPUS390XState *env) @@ -284,7 +275,8 @@ long do_rt_sigreturn(CPUS390XState *env) trace_user_do_rt_sigreturn(env, frame_addr); if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { - goto badframe; + force_sig(TARGET_SIGSEGV); + return -TARGET_QEMU_ESIGRETURN; } target_to_host_sigset(&set, &frame->uc.tuc_sigmask); @@ -296,9 +288,4 @@ long do_rt_sigreturn(CPUS390XState *env) 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; } -- 2.25.1