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[67.174.166.185]) by smtp.gmail.com with ESMTPSA id y15sm3557250qko.78.2021.10.01.10.12.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Oct 2021 10:12:20 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 32/41] linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP_FPE Date: Fri, 1 Oct 2021 13:11:42 -0400 Message-Id: <20211001171151.1739472-33-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211001171151.1739472-1-richard.henderson@linaro.org> References: <20211001171151.1739472-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::f2c; envelope-from=richard.henderson@linaro.org; helo=mail-qv1-xf2c.google.com X-Spam_score_int: -1 X-Spam_score: -0.2 X-Spam_bar: / X-Spam_report: (-0.2 / 5.0 requ) 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: Stafford Horne , alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The kernel vectors both of these through unhandled_exception, which results in force_sig(SIGSEGV). This isn't very useful for userland when enabling overflow traps or fpu traps, but c'est la vie. Cc: Stafford Horne Signed-off-by: Richard Henderson --- linux-user/openrisc/cpu_loop.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/linux-user/openrisc/cpu_loop.c b/linux-user/openrisc/cpu_loop.c index f6360db47c..de5417a262 100644 --- a/linux-user/openrisc/cpu_loop.c +++ b/linux-user/openrisc/cpu_loop.c @@ -56,13 +56,17 @@ void cpu_loop(CPUOpenRISCState *env) break; case EXCP_DPF: case EXCP_IPF: - case EXCP_RANGE: info.si_signo = TARGET_SIGSEGV; info.si_errno = 0; info.si_code = TARGET_SEGV_MAPERR; info._sifields._sigfault._addr = env->pc; queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); break; + case EXCP_RANGE: + case EXCP_FPE: + /* ??? The kernel vectors both of these to unhandled_exception. */ + force_sig(TARGET_SIGSEGV); + break; case EXCP_ALIGN: info.si_signo = TARGET_SIGBUS; info.si_errno = 0; @@ -77,13 +81,6 @@ void cpu_loop(CPUOpenRISCState *env) info._sifields._sigfault._addr = env->pc; queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); break; - case EXCP_FPE: - info.si_signo = TARGET_SIGFPE; - info.si_errno = 0; - info.si_code = 0; - info._sifields._sigfault._addr = env->pc; - queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info); - break; case EXCP_INTERRUPT: /* We processed the pending cpu work above. */ break; -- 2.25.1