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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id z124sm7335100wmg.20.2020.05.21.12.16.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2020 12:16:44 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 28/29] linux-user/arm: Reset CPSR_E when entering a signal handler Date: Thu, 21 May 2020 20:16:09 +0100 Message-Id: <20200521191610.10941-29-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200521191610.10941-1-peter.maydell@linaro.org> References: <20200521191610.10941-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::344; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x344.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_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Amanieu d'Antras This fixes signal handlers running with the wrong endianness if the interrupted code used SETEND to dynamically switch endianness. Signed-off-by: Amanieu d'Antras Reviewed-by: Peter Maydell Message-id: 20200511131117.2486486-1-amanieu@gmail.com Signed-off-by: Peter Maydell --- linux-user/arm/signal.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/linux-user/arm/signal.c b/linux-user/arm/signal.c index 8020c80acb5..698985a647e 100644 --- a/linux-user/arm/signal.c +++ b/linux-user/arm/signal.c @@ -244,6 +244,11 @@ setup_return(CPUARMState *env, struct target_sigaction *ka, } else { cpsr &= ~CPSR_T; } + if (env->cp15.sctlr_el[1] & SCTLR_E0E) { + cpsr |= CPSR_E; + } else { + cpsr &= ~CPSR_E; + } if (ka->sa_flags & TARGET_SA_RESTORER) { if (is_fdpic) { @@ -287,7 +292,8 @@ setup_return(CPUARMState *env, struct target_sigaction *ka, env->regs[13] = frame_addr; env->regs[14] = retcode; env->regs[15] = handler & (thumb ? ~1 : ~3); - cpsr_write(env, cpsr, CPSR_IT | CPSR_T, CPSRWriteByInstr); + cpsr_write(env, cpsr, CPSR_IT | CPSR_T | CPSR_E, CPSRWriteByInstr); + arm_rebuild_hflags(env); return 0; } -- 2.20.1