From nobody Thu Dec 18 14:53:03 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 163706066694429.20017423594527; Tue, 16 Nov 2021 03:04:26 -0800 (PST) Received: from localhost ([::1]:46460 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mmwGH-0004Di-T5 for importer@patchew.org; Tue, 16 Nov 2021 06:04:25 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59936) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mmwEy-0001Pd-Os for qemu-devel@nongnu.org; Tue, 16 Nov 2021 06:03:04 -0500 Received: from [2a00:1450:4864:20::42d] (port=37431 helo=mail-wr1-x42d.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mmwEw-0004ue-Ai for qemu-devel@nongnu.org; Tue, 16 Nov 2021 06:03:04 -0500 Received: by mail-wr1-x42d.google.com with SMTP id b12so36785315wrh.4 for ; Tue, 16 Nov 2021 03:03:01 -0800 (PST) Received: from localhost.localdomain (145.red-37-158-173.dynamicip.rima-tde.net. [37.158.173.145]) by smtp.gmail.com with ESMTPSA id f15sm2639779wmg.30.2021.11.16.03.02.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Nov 2021 03:03:00 -0800 (PST) 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=s/HEpXEnNBxz9iHZEfDzUaUwsQCc0aqYlTEzaPR5D7I=; b=oAI7f/A/5Okgc+KopbzT+ZYrWSv3o3wIzjTk7k+p2IaHH5X7pIPxHIeB/qhZqDOx4E bPgrMadJs6EIrh8l1EVGJxp+9KQjF9giCslm4wCzfbiXcAgjzGUgLGBGl7w+Es/K544+ 1TAMMOjWd5+P2xsCvxv+8B55u5V2aJG6LKuYb/wmuyq92YyNYun+b2/fsdZgnHXRIy+W bLQUx8JxR3jR0IS0C8g3R5S7Dmx3/c4yi2LyAa7k5ianf6VLsKMBERMyW9oLBcAXCK9z sh0VdiKlfhuoQA5BL51jcKuyMFVcslepNWb9rNPzWUyAY2d5ofr3h8wyhZZPdhOMcAgS tWKg== 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=s/HEpXEnNBxz9iHZEfDzUaUwsQCc0aqYlTEzaPR5D7I=; b=ekmtbC7LMnpgONjyjlCNc0Y/RNcSkOGXIwkBhnAhsvp+HBoUmvSlFSkS96adivyoYi eqmqJ6NmwpsdohgNXl2IaPGlLvdadqzXJ1rsOfasggovEXm2mB7Wiv63e6k11qHL+zYJ ECXgUEkTio+6YmGE9T+VUTeYtd/T/gqWfFjc+jztZp6lNd9kr+rX2KBm9LmcB7rtx+4u 6BI/J9xZb6CkzYHI1XKm6mLPe2ADaSEfC0sddwmF7K+QoXXZWRRJQs0sbpZoF5c2NFgm UbECmy/YFRccryH7bIZyaZ+CeoPWyXzJT78FYVKu+3EHsjnOt1iheikNLfB4SWWaCvJr iSHA== X-Gm-Message-State: AOAM531XjFVioKxAMQsBCAE1CQ4fUXlOqyq7gMPOvlSJYMTD+p6ZoOzl DqVKEfzpNjDVkJOhRB3xXyJ+sB2Ic0PzCWpbgkg= X-Google-Smtp-Source: ABdhPJxcP5jR7Sb8+P+2ESQ1QuS9EDfKLSZUWdHq8gIwAAg2ldgRLXz64/BqcNaehfLTjXQ+aApFsQ== X-Received: by 2002:a5d:51cf:: with SMTP id n15mr8758804wrv.106.1637060580570; Tue, 16 Nov 2021 03:03:00 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 1/9] linux-user: Add host_signal_set_pc to set pc in mcontext Date: Tue, 16 Nov 2021 12:02:48 +0100 Message-Id: <20211116110256.365484-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211116110256.365484-1-richard.henderson@linaro.org> References: <20211116110256.365484-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::42d (failed) 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=2a00:1450:4864:20::42d; envelope-from=richard.henderson@linaro.org; helo=mail-wr1-x42d.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 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, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent@vivier.eu, imp@bsdimp.com, =?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: 1637060668165100001 From: Warner Losh Add a new function host_signal_set_pc to set the next pc in an mcontext. The caller should ensure this is a valid PC for execution. Signed-off-by: Warner Losh Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson Message-Id: <20211113045603.60391-2-imp@bsdimp.com> Signed-off-by: Richard Henderson --- linux-user/host/aarch64/host-signal.h | 5 +++++ linux-user/host/alpha/host-signal.h | 5 +++++ linux-user/host/arm/host-signal.h | 5 +++++ linux-user/host/i386/host-signal.h | 5 +++++ linux-user/host/mips/host-signal.h | 5 +++++ linux-user/host/ppc/host-signal.h | 5 +++++ linux-user/host/riscv/host-signal.h | 5 +++++ linux-user/host/s390/host-signal.h | 5 +++++ linux-user/host/sparc/host-signal.h | 9 +++++++++ linux-user/host/x86_64/host-signal.h | 5 +++++ 10 files changed, 54 insertions(+) diff --git a/linux-user/host/aarch64/host-signal.h b/linux-user/host/aarch6= 4/host-signal.h index 0c0b08383a..9770b36dc1 100644 --- a/linux-user/host/aarch64/host-signal.h +++ b/linux-user/host/aarch64/host-signal.h @@ -35,6 +35,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.pc; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.pc =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { struct _aarch64_ctx *hdr; diff --git a/linux-user/host/alpha/host-signal.h b/linux-user/host/alpha/ho= st-signal.h index e080be412f..f4c942948a 100644 --- a/linux-user/host/alpha/host-signal.h +++ b/linux-user/host/alpha/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.sc_pc; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.sc_pc =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { uint32_t *pc =3D (uint32_t *)host_signal_pc(uc); diff --git a/linux-user/host/arm/host-signal.h b/linux-user/host/arm/host-s= ignal.h index efb165c0c5..6c095773c0 100644 --- a/linux-user/host/arm/host-signal.h +++ b/linux-user/host/arm/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.arm_pc; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.arm_pc =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { /* diff --git a/linux-user/host/i386/host-signal.h b/linux-user/host/i386/host= -signal.h index 4c8eef99ce..abe1ece5c9 100644 --- a/linux-user/host/i386/host-signal.h +++ b/linux-user/host/i386/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.gregs[REG_EIP]; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.gregs[REG_EIP] =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { return uc->uc_mcontext.gregs[REG_TRAPNO] =3D=3D 0xe diff --git a/linux-user/host/mips/host-signal.h b/linux-user/host/mips/host= -signal.h index ef341f7c20..c666ed8c3f 100644 --- a/linux-user/host/mips/host-signal.h +++ b/linux-user/host/mips/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.pc; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.pc =3D pc; +} + #if defined(__misp16) || defined(__mips_micromips) #error "Unsupported encoding" #endif diff --git a/linux-user/host/ppc/host-signal.h b/linux-user/host/ppc/host-s= ignal.h index a491c413dc..1d8e658ff7 100644 --- a/linux-user/host/ppc/host-signal.h +++ b/linux-user/host/ppc/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.regs->nip; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.regs->nip =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { return uc->uc_mcontext.regs->trap !=3D 0x400 diff --git a/linux-user/host/riscv/host-signal.h b/linux-user/host/riscv/ho= st-signal.h index 3b168cb58b..a4f170efb0 100644 --- a/linux-user/host/riscv/host-signal.h +++ b/linux-user/host/riscv/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.__gregs[REG_PC]; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.__gregs[REG_PC] =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { /* diff --git a/linux-user/host/s390/host-signal.h b/linux-user/host/s390/host= -signal.h index 26990e4893..a524f2ab00 100644 --- a/linux-user/host/s390/host-signal.h +++ b/linux-user/host/s390/host-signal.h @@ -16,6 +16,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.psw.addr; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.psw.addr =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { uint16_t *pinsn =3D (uint16_t *)host_signal_pc(uc); diff --git a/linux-user/host/sparc/host-signal.h b/linux-user/host/sparc/ho= st-signal.h index 5e71d33f8e..7342936071 100644 --- a/linux-user/host/sparc/host-signal.h +++ b/linux-user/host/sparc/host-signal.h @@ -20,6 +20,15 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) #endif } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ +#ifdef __arch64__ + uc->uc_mcontext.mc_gregs[MC_PC] =3D pc; +#else + uc->uc_mcontext.gregs[REG_PC] =3D pc; +#endif +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { uint32_t insn =3D *(uint32_t *)host_signal_pc(uc); diff --git a/linux-user/host/x86_64/host-signal.h b/linux-user/host/x86_64/= host-signal.h index 883d2fcf65..c71d597eb2 100644 --- a/linux-user/host/x86_64/host-signal.h +++ b/linux-user/host/x86_64/host-signal.h @@ -15,6 +15,11 @@ static inline uintptr_t host_signal_pc(ucontext_t *uc) return uc->uc_mcontext.gregs[REG_RIP]; } =20 +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.gregs[REG_RIP] =3D pc; +} + static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) { return uc->uc_mcontext.gregs[REG_TRAPNO] =3D=3D 0xe --=20 2.25.1