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[67.174.166.185]) by smtp.gmail.com with ESMTPSA id y15sm3557250qko.78.2021.10.01.10.12.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Oct 2021 10:12:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=plpjMgZs0Fmj1no4dWQvatctpg292W263ogwu9LIdH8=; b=otGns6K9LbdwNOmejpmuDxPUaHT3dlCKnwXo+BvZwjQp6r9i/YX32rNDzD1o7qWfkH yDH0qmoEZ/b+DnMzVjWRgsbFgcA02KDlIfSgVqbVAnFAXxx3wckiR456+kX1aM6Tx/Av dpM+25P9ciO3tcMtOHnQ8+wLl719rGCM6p/Rwi+8Yf43nJqT7BUUdoPJsVjLrBLILBsY wrVtZB9BXvTgo3SkBRkpcMp8rtBDUITFU9DEdLm9R2oKurS+XROF0VgvGqWSOqohRY02 kAvBkzDEukaNe/9AVPjP4YafY/IyV2BlKXQ7aZTwveXGenZjIjuVNqcPF2iZ8Izm/IFa RLtA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=plpjMgZs0Fmj1no4dWQvatctpg292W263ogwu9LIdH8=; b=6z2Rb3ASIvcJuzzNdvv/fMDH2IWbcL/b/Ddhhz0ZrUk6Nc/jIUrswi5MneBBFCSY/0 pT9XguxVsfVPDoSCwQQqtUJXBcFRBVT4CLlB77hlGDo7HsFiVXJ1bED7ciE+O1KEayIg ryG3naLpm2hhcUjBQzkk9Fa5qr0VX97rvtEiZ/PKqvwL8aX38wLYKW89NUihZcbOiZy+ /916Hd0TIyXdtgcH2Uj+GQwbjRPRaiRN/JQHyxwV+QR0asG1GmqlTnQf+658HwizpOzi HH7cJJGICFIWWNtD2qTP1Db2WGeKg7tcqSnuzyJVzpvc0aQ1NnA8o7vDfcE90pe2pmLH jHVA== X-Gm-Message-State: AOAM532Q+P4Tgj3xmGth3as415Tu/LQ+CphaRfLowFHxUQf4xDpHYDv5 WJXlkjpeJ6uPvcozXkI9OMd+nMua3d6vQw== X-Google-Smtp-Source: ABdhPJxKkmVpz6DZfDCDbezX6eVGCRrvL2RmU1sG3eWshNrFYFInCdlOVIYtQsf6Y4A8+gLTmKmC5Q== X-Received: by 2002:a37:27d5:: with SMTP id n204mr10251474qkn.31.1633108328922; Fri, 01 Oct 2021 10:12:08 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 18/41] linux-user/signal: Drop HOST_SIGNAL_PLACEHOLDER Date: Fri, 1 Oct 2021 13:11:28 -0400 Message-Id: <20211001171151.1739472-19-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-Type: text/plain; charset="utf-8" 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::72e; envelope-from=richard.henderson@linaro.org; helo=mail-qk1-x72e.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=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: alex.bennee@linaro.org, laurent@vivier.eu, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1633109294656100001 Now that all of the linux-user hosts have been converted to host-signal.h, drop the compatibility code. Reviewed by: Warner Losh Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- include/exec/exec-all.h | 12 ------------ linux-user/signal.c | 14 -------------- 2 files changed, 26 deletions(-) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 5f94d799aa..5dd663c153 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -685,18 +685,6 @@ MMUAccessType adjust_signal_pc(uintptr_t *pc, bool is_= write); bool handle_sigsegv_accerr_write(CPUState *cpu, sigset_t *old_set, uintptr_t host_pc, abi_ptr guest_addr); =20 -/** - * cpu_signal_handler - * @signum: host signal number - * @pinfo: host siginfo_t - * @puc: host ucontext_t - * - * To be called from the SIGBUS and SIGSEGV signal handler to inform the - * virtual cpu of exceptions. Returns true if the signal was handled by - * the virtual CPU. - */ -int cpu_signal_handler(int signum, void *pinfo, void *puc); - #else static inline void mmap_lock(void) {} static inline void mmap_unlock(void) {} diff --git a/linux-user/signal.c b/linux-user/signal.c index bab47a6962..537c6c41c0 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -777,17 +777,6 @@ static void host_signal_handler(int host_sig, siginfo_= t *info, void *puc) ucontext_t *uc =3D puc; struct emulated_sigtable *k; int guest_sig; - -#ifdef HOST_SIGNAL_PLACEHOLDER - /* the CPU emulator uses some host signals to detect exceptions, - we forward to it some signals */ - if ((host_sig =3D=3D SIGSEGV || host_sig =3D=3D SIGBUS) - && info->si_code > 0) { - if (cpu_signal_handler(host_sig, info, puc)) { - return; - } - } -#else uintptr_t pc =3D 0; bool sync_sig =3D false; =20 @@ -847,7 +836,6 @@ static void host_signal_handler(int host_sig, siginfo_t= *info, void *puc) =20 sync_sig =3D true; } -#endif =20 /* get target signal number */ guest_sig =3D host_to_target_signal(host_sig); @@ -862,7 +850,6 @@ static void host_signal_handler(int host_sig, siginfo_t= *info, void *puc) k->pending =3D guest_sig; ts->signal_pending =3D 1; =20 -#ifndef HOST_SIGNAL_PLACEHOLDER /* * For synchronous signals, unwind the cpu state to the faulting * insn and then exit back to the main loop so that the signal @@ -872,7 +859,6 @@ static void host_signal_handler(int host_sig, siginfo_t= *info, void *puc) cpu->exception_index =3D EXCP_INTERRUPT; cpu_loop_exit_restore(cpu, pc); } -#endif =20 rewind_if_in_safe_syscall(puc); =20 --=20 2.25.1