From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602873990; cv=none; d=zohomail.com; s=zohoarc; b=ZibfFuHd/Zw+xwbCzxdBQ8r5YYL0aIT4DZv3bjaniyBOTgyM1RA8K70SrEU+ogfqGJbJvKRJhbnKOiICKnxEPWoevDb7Z349Ovw+5IsHeW+WGkNkIIllfKy//QdUSCosh+JlHM1HwrN5BaC4PXgtH+8J1mn0wFKNU+NhHOccv4c= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602873990; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=zVLgn+OX/nTD/oUAFauTpXTtA86xiUG6+rSs26rONZM=; b=jIqHJSf02srCe2eZsY4aVEPUB0JE8YcaqtD6Cd0gYflWeVjsAFfJs2YKr40naQuIn8ffw1cV0d6O/qPgMnbwDWZdtkajJrVtWdGRicINOgtV/Ysn4yVGYhsyMWPw2UPCaVDW6sil+wYijKNSdzpFqP69NP+Cmpdh0flA4AA0dA0= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602873990384695.2299639366987; Fri, 16 Oct 2020 11:46:30 -0700 (PDT) Received: from localhost ([::1]:36426 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUkH-0003Ur-4f for importer@patchew.org; Fri, 16 Oct 2020 14:46:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55144) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgM-0000UF-55 for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:27 -0400 Received: from mail-pf1-x443.google.com ([2607:f8b0:4864:20::443]:43122) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgA-000251-Uk for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:24 -0400 Received: by mail-pf1-x443.google.com with SMTP id a200so1976452pfa.10 for ; Fri, 16 Oct 2020 11:42:13 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:11 -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=zVLgn+OX/nTD/oUAFauTpXTtA86xiUG6+rSs26rONZM=; b=X3da8qp97zHh18bfs//PjWRI7eoJKP8qXb0hu58E3tvMElVxzcK3VZXcftBvUJWUZT Zai2wqepNHmk1CYOF5UTMOKYyz4PA4wSzIWCo730xtyFo0jlab8MxR+hEHylDunD8T+/ 8a9sE6vx+TRM2aE/piEXv8PGGaGtqFSOSajShCv9vLqHwga2QjVNwYLQl37WVDi/AlEs 2E25smK9Gelcbp0eKbc/yebt6xzGMSAFXKFHDa6JkKaXelqKYxbtckbQDC9VObKscCkt 3M8sa0V2vmrsbIpvz+FD8HbVeCxO3dT6aHFWZrcaCdUoPwMGwyVekz6qPevPYNGK/rbr sTKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=zVLgn+OX/nTD/oUAFauTpXTtA86xiUG6+rSs26rONZM=; b=UL9/zSo+S6WixMqUoQYZk3tqA5qkvWeiJjKt35i6xGoPibZdRfi7lYHv1eH0PH0RuT sZZ7GfqKsFD2E26a2933SXjDMluxT5g3nHOSsM4o2Gz2lpAvoVpsgCl8mQzwcAH910sw Nd7LyGRkBr9Mybo1ZDLyMwN3hkRr69Ra2n0ort7KH47D7NVlTVDo0r5wqUD/LxlXX57O 10qxcZAYQOf5LYf4Miw6r4yAbUF0tJMkfNByQpYRUTz8x0HdJVTpF/4jMqcsNvmXKaJx s2RmzQGpeCtj5Urx1b4nffWS+/5K5PW3rCF9cSOx0hJKx5l1iKjx4dM4LryAMeg7XRFb UDcg== X-Gm-Message-State: AOAM530jNO7XecnKghIKQvtDucAApuVpagneJrcr2SVEsUnXogxuqkFF BztLTMuTxK6abzu2ncsx+pJ95XfJRW7+5A== X-Google-Smtp-Source: ABdhPJyNq7fQaW86kRVsgO2N4V68S3cs6eqwd5iqB4LY7We4DRd3XSUVc72nxVezT5wMoWiFIC74Og== X-Received: by 2002:a62:5b81:0:b029:156:2dce:5aa with SMTP id p123-20020a625b810000b02901562dce05aamr4938299pfb.15.1602873732189; Fri, 16 Oct 2020 11:42:12 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 01/12] linux-user/aarch64: Reset btype for signals Date: Fri, 16 Oct 2020 11:41:56 -0700 Message-Id: <20201016184207.786698-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::443; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x443.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The kernel sets btype for the signal handler as if for a call. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- linux-user/aarch64/signal.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c index d50c1ae583..b591790c22 100644 --- a/linux-user/aarch64/signal.c +++ b/linux-user/aarch64/signal.c @@ -506,10 +506,16 @@ static void target_setup_frame(int usig, struct targe= t_sigaction *ka, + offsetof(struct target_rt_frame_record, tramp); } env->xregs[0] =3D usig; - env->xregs[31] =3D frame_addr; env->xregs[29] =3D frame_addr + fr_ofs; - env->pc =3D ka->_sa_handler; env->xregs[30] =3D return_addr; + env->xregs[31] =3D frame_addr; + env->pc =3D ka->_sa_handler; + + /* Invoke the signal handler as if by indirect call. */ + if (cpu_isar_feature(aa64_bti, env_archcpu(env))) { + env->btype =3D 2; + } + if (info) { tswap_siginfo(&frame->info, info); env->xregs[1] =3D frame_addr + offsetof(struct target_rt_sigframe,= info); --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874377; cv=none; d=zohomail.com; s=zohoarc; b=ELUKbQ3UePuRkBNf27w2i1Xf88NBJlSD3Kx6dfFVisH6/WVoVl6PG2Scqkx3eIEtdEx70oCkZYCEE6lGNJCFj58xPzLm0vQzZvgpYPXkwz1xPOflZXcCjZhDxXLrpeI3xFrlxKgr52V59H0CCmBTxWKc0ZKCkCro4cRlQDQ3A+E= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874377; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=mmx0CSTu1RTijUU9ATLSsRFrO7J82mzvN7XFVAPyzh0=; b=LzaK7RMOWbSgwdaJ/D2txd6PBsMXv9rvUM8h6goggrP3D3FlqsUuBPtiSU2ou9hBd4jZUngKfP8z/yBbbDYnilFIS7PwlL7XUzq70nN/bCxLR2W/8PiSA8VGpZBCksRBvev+yBbZZL3R2jzoQrHxbzVkmmu/K44tAEod5k/Ox14= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874377821884.1809500803786; Fri, 16 Oct 2020 11:52:57 -0700 (PDT) Received: from localhost ([::1]:50718 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUqW-0001Mv-JH for importer@patchew.org; Fri, 16 Oct 2020 14:52:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55264) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgS-0000VK-0t for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:32 -0400 Received: from mail-pj1-x1042.google.com ([2607:f8b0:4864:20::1042]:50760) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgC-00025s-N1 for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:29 -0400 Received: by mail-pj1-x1042.google.com with SMTP id p21so1853258pju.0 for ; Fri, 16 Oct 2020 11:42:15 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:12 -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=mmx0CSTu1RTijUU9ATLSsRFrO7J82mzvN7XFVAPyzh0=; b=UDvBaa/2+KKhPbT4/iNfv5XE+B7/uNC7eM98tlHjPuMTzjib2VBF04WADHBc5uw36s xlwjsnUpC2Wjk4qWoN1v4ujscN4hOqA8IpB3wpWQcgNyC7LvRS2fUxuCWWYtoztd4gv4 EAycsoFCnxOb9ni1jgXYaQKM9mgieHnhvz3x+v53B2e329Y3NPAzLfWXVMfxO6bxb1aq qRDn0bU4giEfrygHkcTzQU2ZFKiHeb8xJhTAA+oFgrRaY7zannZb2aQ69Tkc0g4JQgx0 PAiHPobqzh/yxvBTsQYQMHA91i/tkCzLoKN5DIwOJDl8wi5BTvnRfYMwaADc3VgEYdf+ CodA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=mmx0CSTu1RTijUU9ATLSsRFrO7J82mzvN7XFVAPyzh0=; b=ucc3MUAbcMqCEkAeA2fb4fCD+WjBzE9crgtT1tkyOm4PkWCdPeuvWWHrrLvXC/N6Cu Cir2Th53ceWuxQlq1U9gG0TZMQScdVxq4PH6Nzo/oth38la9vjYCcppo/cxfvq0YZP+K JSozNqDxu/5vHCP2nt1HsXVGIPOo4dqJevMnVhAsigtZBLCYyVdO8YvIGVQq215YJOpt hJF/vG3kbL6k1c6bFX5gAXlLm2BYgCf6iQVKf2B3+YJXsP+t/rFTxuAYrlTq/bAzCami GHCzkOkmKjnp+k56VBQzhf70uNosK6y8qzVB1XFKrff3mzxF0ZAmlFgtZzIUFNvmOF1J FOTg== X-Gm-Message-State: AOAM530+EhAacUXTQbqi5Ahk8iDvAPQOISAYApdAhmdZFQaeyKWiwr8s 67BSWINfVQYIDja4V18wl3xHw58gfPDgmA== X-Google-Smtp-Source: ABdhPJyxKkUTKpLTA/YU83qDPCL5iTjtWDkm6nmQEH+Pgy5X+GeRJ6VdpjBFhwXEy3pjnrIjal1iLg== X-Received: by 2002:a17:90a:6541:: with SMTP id f1mr5433416pjs.46.1602873733577; Fri, 16 Oct 2020 11:42:13 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 02/12] linux-user: Set PAGE_TARGET_1 for TARGET_PROT_BTI Date: Fri, 16 Oct 2020 11:41:57 -0700 Message-Id: <20201016184207.786698-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::1042; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1042.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Transform the prot bit to a qemu internal page bit, and save it in the page tables. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v10: Add PAGE_BTI define (pmm). --- include/exec/cpu-all.h | 2 ++ linux-user/syscall_defs.h | 4 ++++ target/arm/cpu.h | 5 +++++ linux-user/mmap.c | 16 ++++++++++++++++ target/arm/translate-a64.c | 6 +++--- 5 files changed, 30 insertions(+), 3 deletions(-) diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h index 61e13b5038..656a2a8788 100644 --- a/include/exec/cpu-all.h +++ b/include/exec/cpu-all.h @@ -274,6 +274,8 @@ extern intptr_t qemu_host_page_mask; /* FIXME: Code that sets/uses this is broken and needs to go away. */ #define PAGE_RESERVED 0x0020 #endif +/* Target-specific bits that will be used via page_get_flags(). */ +#define PAGE_TARGET_1 0x0080 =20 #if defined(CONFIG_USER_ONLY) void page_dump(FILE *f); diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 731c3d5341..cabbfb762d 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -1277,6 +1277,10 @@ struct target_winsize { #define TARGET_PROT_SEM 0x08 #endif =20 +#ifdef TARGET_AARCH64 +#define TARGET_PROT_BTI 0x10 +#endif + /* Common */ #define TARGET_MAP_SHARED 0x01 /* Share changes */ #define TARGET_MAP_PRIVATE 0x02 /* Changes are private */ diff --git a/target/arm/cpu.h b/target/arm/cpu.h index cfff1b5c8f..e8efe21a1b 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -3443,6 +3443,11 @@ static inline MemTxAttrs *typecheck_memtxattrs(MemTx= Attrs *x) #define arm_tlb_bti_gp(x) (typecheck_memtxattrs(x)->target_tlb_bit0) #define arm_tlb_mte_tagged(x) (typecheck_memtxattrs(x)->target_tlb_bit1) =20 +/* + * AArch64 usage of the PAGE_TARGET_* bits for linux-user. + */ +#define PAGE_BTI PAGE_TARGET_1 + /* * Naming convention for isar_feature functions: * Functions which test 32-bit ID registers should have _aa32_ in diff --git a/linux-user/mmap.c b/linux-user/mmap.c index f261563420..00c05e6a0f 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -83,6 +83,22 @@ static int validate_prot_to_pageflags(int *host_prot, in= t prot) *host_prot =3D (prot & (PROT_READ | PROT_WRITE)) | (prot & PROT_EXEC ? PROT_READ : 0); =20 +#ifdef TARGET_AARCH64 + /* + * The PROT_BTI bit is only accepted if the cpu supports the feature. + * Since this is the unusual case, don't bother checking unless + * the bit has been requested. If set and valid, record the bit + * within QEMU's page_flags. + */ + if (prot & TARGET_PROT_BTI) { + ARMCPU *cpu =3D ARM_CPU(thread_cpu); + if (cpu_isar_feature(aa64_bti, cpu)) { + valid |=3D TARGET_PROT_BTI; + page_flags |=3D PAGE_BTI; + } + } +#endif + return prot & ~valid ? 0 : page_flags; } =20 diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 7188808341..072754fa24 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -14507,10 +14507,10 @@ static void disas_data_proc_simd_fp(DisasContext = *s, uint32_t insn) */ static bool is_guarded_page(CPUARMState *env, DisasContext *s) { -#ifdef CONFIG_USER_ONLY - return false; /* FIXME */ -#else uint64_t addr =3D s->base.pc_first; +#ifdef CONFIG_USER_ONLY + return page_get_flags(addr) & PAGE_BTI; +#else int mmu_idx =3D arm_to_core_mmu_idx(s->mmu_idx); unsigned int index =3D tlb_index(env, mmu_idx, addr); CPUTLBEntry *entry =3D tlb_entry(env, mmu_idx, addr); --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874157; cv=none; d=zohomail.com; s=zohoarc; b=EY6lufwx62QJOlo+BVjaJ/rmrGrVs4Ww5nLoRrz70ikK3p6PtiDISiCKCCepjUb9tdPAkgrWXADSeUN3r8CdUCB+rlKruCtyB6Xe4Zs9dFINPzFgzOT+lM67J2f4+7FqW0qyLg9vJenTAaPKcCxiAf3p0DfCZOapiCd8XAANr4Y= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874157; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=8JkogZW08o4QbERarC4qat0jsqD9fmDjl7gKGBrUP6I=; b=IG2vqloyetYrcKL44BeRZ/GBl109Rj2rQV3fGI7KtBtZO79ni+1AnbrlSF7j7+Z4Qx7V4p4rQ0HlkAxnvcHg+e5qyyrxW04xRw0f2h2sp94sk9H8veZAezIE9YNXOnEhHIyv3JCRyRvdUVYFvVCtbgsDrYLPyNjo1Jlz6nUeUm4= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874157603447.7222516753619; Fri, 16 Oct 2020 11:49:17 -0700 (PDT) Received: from localhost ([::1]:42906 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUmy-0006Lx-D0 for importer@patchew.org; Fri, 16 Oct 2020 14:49:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55266) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgS-0000VL-1D for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:33 -0400 Received: from mail-pf1-x442.google.com ([2607:f8b0:4864:20::442]:45229) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgC-00026L-TU for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:29 -0400 Received: by mail-pf1-x442.google.com with SMTP id e7so1974553pfn.12 for ; Fri, 16 Oct 2020 11:42:16 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:14 -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=8JkogZW08o4QbERarC4qat0jsqD9fmDjl7gKGBrUP6I=; b=pYxAmiXsf+Pkx1zPHtkgQ26+gslMTryFI8G/wZfTj1+dfUuDy226R4InFWRwX41VFr qxVN5dnY9q1VyMYdQUdvBFXNa61vjefdGUfsXW3kDRNUTroXLjF1J6+Uz9ERKKa54/OU NCP8OCHvxUGbaCVvaqBtZiBOHosXeagmAUzbHlG2vIucJL59bb+w11+MNgTmObqeswiH dzyyiOPXavsDxL5MXILiuUtQnYAK5FsrWg/5CwmckUPZ3M5dLrJ/TecdOSlBZdnSelp8 6c5NkJ6il+IBr0CNEsldRsDuElb/w4itX7tj7u0xB3Zf1RRKokiXxVNOQACIIfx04Ly6 Tivw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=8JkogZW08o4QbERarC4qat0jsqD9fmDjl7gKGBrUP6I=; b=F8p1cIbkpBloOcO5L/oo3nWWzXHQ/tZawOQHY8QO+ylLJhJT1DdAg6or4QIGs25cQO kOwHm28ygwNzqmcUcI+S5Ktk3KNymVbX90EEQsfK6ffuQ5qUefClKZ5f72MoMh3ldzZJ lzXgQWCv4PRwpXvWxDpzhn4Z+bLtE/h3ubksjgogTqMbCcCrJh+vZdjtSjlpRe4ehitf utKtfueS80k2v5VzlFkPGRg2lb4lCMZiyQGJDRzos8u74Gi9a+K0J8+WggqZ3K4xf07X JsYulWwlg1jOIHIBX8uB1eDLSWz78gBf2T0CjZMboGoZvMQ8BT5vpjZZc08n/sduBf2K BsVg== X-Gm-Message-State: AOAM532vvfXgdYKVL8hZn29V7zIPZvFtV1mqSNQPTAwQL4DeuCD+CoQI OT9+njtS4Oem100TUfqWioh1BdZUisw2Xw== X-Google-Smtp-Source: ABdhPJwR5ETWzvZxN7kI3cwIm0wEq/IbQRHhQJbtb2EWfqMipSqa6orfExXnKpIzBmcVlNSemWa87Q== X-Received: by 2002:a62:16ce:0:b029:155:2e1d:9c06 with SMTP id 197-20020a6216ce0000b02901552e1d9c06mr5016448pfw.6.1602873734883; Fri, 16 Oct 2020 11:42:14 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 03/12] include/elf: Add defines related to GNU property notes for AArch64 Date: Fri, 16 Oct 2020 11:41:58 -0700 Message-Id: <20201016184207.786698-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::442; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x442.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" These are all of the defines required to parse GNU_PROPERTY_AARCH64_FEATURE_1_AND, copied from binutils. Other missing defines related to other GNU program headers and notes are elided for now. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- include/elf.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/include/elf.h b/include/elf.h index c117a4d1ab..10126ff809 100644 --- a/include/elf.h +++ b/include/elf.h @@ -26,9 +26,13 @@ typedef int64_t Elf64_Sxword; #define PT_NOTE 4 #define PT_SHLIB 5 #define PT_PHDR 6 +#define PT_LOOS 0x60000000 +#define PT_HIOS 0x6fffffff #define PT_LOPROC 0x70000000 #define PT_HIPROC 0x7fffffff =20 +#define PT_GNU_PROPERTY (PT_LOOS + 0x474e553) + #define PT_MIPS_REGINFO 0x70000000 #define PT_MIPS_RTPROC 0x70000001 #define PT_MIPS_OPTIONS 0x70000002 @@ -1657,6 +1661,24 @@ typedef struct elf64_shdr { #define NT_ARM_SYSTEM_CALL 0x404 /* ARM system call number */ #define NT_ARM_SVE 0x405 /* ARM Scalable Vector Extension r= egs */ =20 +/* Defined note types for GNU systems. */ + +#define NT_GNU_PROPERTY_TYPE_0 5 /* Program property */ + +/* Values used in GNU .note.gnu.property notes (NT_GNU_PROPERTY_TYPE_0). = */ + +#define GNU_PROPERTY_STACK_SIZE 1 +#define GNU_PROPERTY_NO_COPY_ON_PROTECTED 2 + +#define GNU_PROPERTY_LOPROC 0xc0000000 +#define GNU_PROPERTY_HIPROC 0xdfffffff +#define GNU_PROPERTY_LOUSER 0xe0000000 +#define GNU_PROPERTY_HIUSER 0xffffffff + +#define GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000 +#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI (1u << 0) +#define GNU_PROPERTY_AARCH64_FEATURE_1_PAC (1u << 1) + /* * Physical entry point into the kernel. * --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602873889; cv=none; d=zohomail.com; s=zohoarc; b=MZ1tSyiRiH+lBeu+vR1Pr8nbI8T5g3H6CU0pCcpq7/WAm81bKE7qeXDN1GN16Udu+79qV0Y2uIMEwwkwsstmIS5vt6OkbEHJ8CFP0MJN3jSCRmjrgmKq3usnk3mn6wC5VvR69NKvtSfg+iVkGaWHZB+nQ5c149bBKdqO3Z5ZAhc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602873889; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=tcQiTVPZ4EDkEsGCvdGZmCD7eErMNKvjpgH4j/u5Y8I=; b=VUPMnZUP6n8375exhPEJMpWP2srOCd+2+DZgrhJD/EDeiSNB6frNTrTYVXfFrTQlLoLaU4CGN6UImX3BGIypfJRaqyywjIuAYvL1kwD34td/MCXasyHhlnjNnpb4jLcMUkPQMuFoTESJHlaFZtootoOLs5WY7WrpQkJrZFedx3Q= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602873889830296.1935509460001; Fri, 16 Oct 2020 11:44:49 -0700 (PDT) Received: from localhost ([::1]:33986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUie-0002QK-KA for importer@patchew.org; Fri, 16 Oct 2020 14:44:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55188) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgP-0000V9-8B for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:31 -0400 Received: from mail-pj1-x1041.google.com ([2607:f8b0:4864:20::1041]:54581) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgG-00026e-Ct for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:27 -0400 Received: by mail-pj1-x1041.google.com with SMTP id az3so1842483pjb.4 for ; Fri, 16 Oct 2020 11:42:17 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:15 -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=tcQiTVPZ4EDkEsGCvdGZmCD7eErMNKvjpgH4j/u5Y8I=; b=BIq43mfIl6tPMcY1In/e2r93+woPXqHZoyGSA8eMLv2FIRvOtQ9a1kuUSIjsoN6lOI T2jIycCPbQAcU2X/v2GBYGnWd2hsAaALrejJrmkjH3Hn9ZmDcqD6ohIhgcGO0P8yj2Fn gHQALboLEEgdaKOOc3ooPWif2spFY+X1bhXIuivndCsynXb+e4Fclc6gwuEhnYbDESPX n2rOhuXRaxFP5Mg7HTrtx6jz3YEVDtt2UVGHItxk/H0/PZSaoW/vUk5i6EYTyucAUMIL ljl60noBwvmFXZfaJ8S3Q5wFBwUFnfNmFDyVZaqPkViQk9QflU+tpvYFfC1ZnRi6amZL mNDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=tcQiTVPZ4EDkEsGCvdGZmCD7eErMNKvjpgH4j/u5Y8I=; b=JhjJqHMGVfUkOdTc3nE8Q22tqFWjR24WmW/E/xBK5SCcCmsAb9kWQrOfUecV8UC0MD ob/p1ARsM1TbNazPNI4gmi83myNCd7HJvvIe/iybxAnWHBp3/UiyS+/xK6bMPHHuldMg 5pHnskSovGI2o5gNI9YfdE8wkx4PjMANseTbUBxa0c3B3J75BE6bZ4WQJrB5C/T+VbA5 xO7giW5AJYm9W6YQj1RCAdOmn/K4xLRLs0RdC8ZWF3TCAtjZIygBk9ocoVc5nvG423nd BA95vuk9bPKFtryaMyab4FpZ7d/seGTNt56WmM+OMIfo66DBvDujxjxrI5Tx7rnZg9yi ZqWw== X-Gm-Message-State: AOAM532bhsPThUvZZFYlUGTehgameL5hpsEXyrHVb608ash2DTtvwnEo MS3DLwFVuwnnyVg3xIpA6SzjMkr+f7lVdw== X-Google-Smtp-Source: ABdhPJyY6cd47FDfccdN3dhaPcSnA7qoUywjqtl2kuQYqDWbXvCmsDteT4ZxzTaHdA1rQXeo7n+OPw== X-Received: by 2002:a17:90a:8596:: with SMTP id m22mr5218160pjn.42.1602873736199; Fri, 16 Oct 2020 11:42:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 04/12] linux-user/elfload: Avoid leaking interp_name using GLib memory API Date: Fri, 16 Oct 2020 11:41:59 -0700 Message-Id: <20201016184207.786698-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-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::1041; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1041.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, 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) From: Philippe Mathieu-Daud=C3=A9 Fix an unlikely memory leak in load_elf_image(). Fixes: bf858897b7 ("linux-user: Re-use load_elf_image for the main binary.") Signed-off-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20201003174944.1972444-1-f4bug@amsat.org> Signed-off-by: Richard Henderson --- linux-user/elfload.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index f6022fd704..1a3150df7c 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2584,13 +2584,13 @@ static void load_elf_image(const char *image_name, = int image_fd, info->brk =3D vaddr_em; } } else if (eppnt->p_type =3D=3D PT_INTERP && pinterp_name) { - char *interp_name; + g_autofree char *interp_name =3D NULL; =20 if (*pinterp_name) { errmsg =3D "Multiple PT_INTERP entries"; goto exit_errmsg; } - interp_name =3D malloc(eppnt->p_filesz); + interp_name =3D g_malloc(eppnt->p_filesz); if (!interp_name) { goto exit_perror; } @@ -2609,7 +2609,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, errmsg =3D "Invalid PT_INTERP entry"; goto exit_errmsg; } - *pinterp_name =3D interp_name; + *pinterp_name =3D g_steal_pointer(&interp_name); #ifdef TARGET_MIPS } else if (eppnt->p_type =3D=3D PT_MIPS_ABIFLAGS) { Mips_elf_abiflags_v0 abiflags; @@ -2961,7 +2961,7 @@ int load_elf_binary(struct linux_binprm *bprm, struct= image_info *info) if (elf_interpreter) { info->load_bias =3D interp_info.load_bias; info->entry =3D interp_info.entry; - free(elf_interpreter); + g_free(elf_interpreter); } =20 #ifdef USE_ELF_CORE_DUMP --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874131; cv=none; d=zohomail.com; s=zohoarc; b=O22keY/yYHqsqPNCweiTTuILB3ddnpmSIaUDapk/z3nm5Vf/qJ+bc4jQKgXOGW5gMlMgCEXWeR9/oVZG3KoZ+Rg1CzAO0+W1ANOV21FFl64lIVL9u5u4JaMu1dq7pZlRpANrQpkTUi4UKTn4J8lfBcNTXFUb6oL/XAfYNp+YsSg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874131; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=/PhyfxonOHMia69Uhhz8aFrAtnkrEZKYG1wmZQKttSI=; b=PRPAWAmieoq13lvmspUiLv1qkZQTZgcFp7Yqsp9yktCvlT+IVyc8m4Ws5EhSYG6Ahjdu0PAXdZc2k9clt0nnCoDBJ8aoSUYocU+D8IOJVOjRfFylpHjE/OK6Ly4RMuB9kPXAXycs4IrTPCfy6RznxXjsNqAZf9CJ6r9Q6yL1sKM= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874131099356.95775034308656; Fri, 16 Oct 2020 11:48:51 -0700 (PDT) Received: from localhost ([::1]:42228 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUmX-00063s-RI for importer@patchew.org; Fri, 16 Oct 2020 14:48:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55256) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgS-0000VI-0W for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:32 -0400 Received: from mail-pf1-x444.google.com ([2607:f8b0:4864:20::444]:40957) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgG-00026u-Cp for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:29 -0400 Received: by mail-pf1-x444.google.com with SMTP id w21so1987334pfc.7 for ; Fri, 16 Oct 2020 11:42:18 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:16 -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=/PhyfxonOHMia69Uhhz8aFrAtnkrEZKYG1wmZQKttSI=; b=sNLIoDgxTpluHbWkpp0asVN19lAwCAgynZMkI8ZMUh8GMo6c0PfhLUbY4Td+mRPYEr +r6fPFn3dlw4c0tsT3mKrRNZeF4kvkH7zJXCslIeRh/ZEkAU5aTzD1zduPujDyXAh5FC MtVryWDp7mRaBlMknHDT9jfFwmhcScD0gHQ71iZjCxKKX7mpvkaqSuvX1y+jdfQyhjSu Isqf9znWrtxMwwbHfMiFxXZ/pFWmCxhwUpBg+esvOpA5WX6aiQ+MlQWpCnXbitqcS6hD Rg49QGoj5SyIrBvwJqXZUQqcmkY0lknuFwsZ1SXrN4JIo3m9xQDLUhDPn2T9tRMpSc4m VY6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/PhyfxonOHMia69Uhhz8aFrAtnkrEZKYG1wmZQKttSI=; b=VCxoYPKzJbxaCy3UaJVDb9I481zKSQaLT66/ViZQ9hRcDicfJ4UXxdNRoaD5sKSxMz 47g39uRTr9kYd+Z+aR/6Yghswd1Owx6qka5G/ysByWG8efHNdpeFKy66kg11lapaisYr 8X/BgRGcEsMv31E8ywajNnEXit9wU6sfUQqkBo9YnTNOQn7vX6o+UstMyUJZZsCwuXsd fy0otSz4zUJsuB+nUgpxzDPFGf/XyKEarV1z3gvJHDtePRPwwatuMwK22jqP9ZOWAJZM 2nd4P2T842zwZISPfHZAK+YNdxza7jzOD6rEyuKmDKf60h7MWvEm+kZ9Ty4LGiHv+x+u DqNw== X-Gm-Message-State: AOAM530rxRgvLTUDpKBl1HEs90OSxujYkK8EXpRkiSl3IasTiLTO7MAf tlPT9NcQkMxQdmBhk6JP+GWiM48syDHaUQ== X-Google-Smtp-Source: ABdhPJzrv+6PeNDYtLb8YQEIYw1XJoNkudToEiPoF5XvPNx6dqfN7ViMuLo35wCuTQQMvISDVr57hw== X-Received: by 2002:a62:6dc2:0:b029:152:637c:4cf5 with SMTP id i185-20020a626dc20000b0290152637c4cf5mr4974356pfc.15.1602873737369; Fri, 16 Oct 2020 11:42:17 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 05/12] linux-user/elfload: Fix coding style in load_elf_image Date: Fri, 16 Oct 2020 11:42:00 -0700 Message-Id: <20201016184207.786698-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::444; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x444.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Fixing this now will clarify following patches. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- linux-user/elfload.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 1a3150df7c..290ef70222 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2531,9 +2531,15 @@ static void load_elf_image(const char *image_name, i= nt image_fd, abi_ulong vaddr, vaddr_po, vaddr_ps, vaddr_ef, vaddr_em, vaddr= _len; int elf_prot =3D 0; =20 - if (eppnt->p_flags & PF_R) elf_prot =3D PROT_READ; - if (eppnt->p_flags & PF_W) elf_prot |=3D PROT_WRITE; - if (eppnt->p_flags & PF_X) elf_prot |=3D PROT_EXEC; + if (eppnt->p_flags & PF_R) { + elf_prot |=3D PROT_READ; + } + if (eppnt->p_flags & PF_W) { + elf_prot |=3D PROT_WRITE; + } + if (eppnt->p_flags & PF_X) { + elf_prot |=3D PROT_EXEC; + } =20 vaddr =3D load_bias + eppnt->p_vaddr; vaddr_po =3D TARGET_ELF_PAGEOFFSET(vaddr); --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874042; cv=none; d=zohomail.com; s=zohoarc; b=MLF0s0xhAa1AVZ4eOhS82xPEV8zOwyGHqnHydVyVvCF6rhQJA5qbSv07HIZ2htW1iVmneCBzL9I8KpdrDKm9787NRf4zmchY6C/vn6/mcMXqopDZx+TZoEELeAHJPifl9KGmAyo5qPdFpYveLH4g+1ej1mty6CEG9lIG9jyvXXw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874042; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=cq0uFj4EPvaT7XIB2x7QEFAKMyx7fIErYUcL6pVPEzc=; b=MdazQhJV02aTTZI5zg75gR9Mmx+fObRQz2bWccsLhjvPffe34KnGFcQ/jw4gIF9upUP5LCtS+xRLt/2NjFmXGcVij4Rdu9FRuWCcgxrS+3vf+eMUcdRGcvPmRr/jCv8fPqawkqRw1xmrplo5kZ15GIjFOaILnGIKsT9d2/pmJ5o= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874042928805.0749662626964; Fri, 16 Oct 2020 11:47:22 -0700 (PDT) Received: from localhost ([::1]:37894 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUl7-0004Bm-N2 for importer@patchew.org; Fri, 16 Oct 2020 14:47:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55272) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgS-0000VT-3c for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:33 -0400 Received: from mail-pf1-x444.google.com ([2607:f8b0:4864:20::444]:36816) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgG-00027Q-Ll for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:31 -0400 Received: by mail-pf1-x444.google.com with SMTP id b26so1999153pff.3 for ; Fri, 16 Oct 2020 11:42:20 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:18 -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=cq0uFj4EPvaT7XIB2x7QEFAKMyx7fIErYUcL6pVPEzc=; b=AJg/GSpfwAMptofEmN8Zw5f4rcthuQxJ81zUqSvkfobf0mE1Mqu12+dzUkqRuPBP+Y EWqoeZbWR8pMmSJriG2PaLg8DQq/BNdjJOMNZo388vZqsb/jgfG1OXDHnivQuxZgq2qm 4tzIEGLh/UrfqkFMbJOSj9LeeS1kPlEXIBt+UCpm+x36VQE6awlSxkZstPcZNkBZQZ/B J1EMUR8WAzG1WzLgbR224vjBJXpzT34cLCr/njteowlo9FYv5Opd3mECoew3oK5tVD/B 6vaW8JuModd/7By3W/t8eu4zfoGzuS1BTdoY016rMK6zLKtsgMxMHwamw+0QvETfd9mG /5Aw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=cq0uFj4EPvaT7XIB2x7QEFAKMyx7fIErYUcL6pVPEzc=; b=FqwHHrEd0rmBfLUvp2fhN5+jhjFxr8sMrNGQ66I6a5zs0xf1xT37foa70g88ubdbb6 tseHzPjoIm+5hY6cDAH8XnMo9Q/3ZDDlBYf2S4+8n0H1T3yIHvw6PPCJvBhziMlm7YcT TLgLP87aqzCtlpDZFzIqlsFnGPSI2t41fArfLXxWpByw6ArPsQB81xNbg361K3RNmol5 Ki5oD2fQKUqgg4bwkKHMhndVyPBleGAzzlTQo39Z5XnzcPZd3GFbMYZRFQIE91yTMLCE RfAn8gxijLnJdwUEfnMxg+YvAF4fqWA+uXPkyUXxMPFjNz/8h3mwB4cw56MszSP7LRJQ DBiA== X-Gm-Message-State: AOAM530CyZMDoHx7yNXSbUFjD7YZFBis5JuPNt82GnkVeYFnYXNU3zWY nXSQDf4WgKJqqp5GhUyi8HQU1ZvtzEc2HQ== X-Google-Smtp-Source: ABdhPJwmi2tPKDAF6m3T2YgJNvP1tGgjdNcnLIW71R9qTvkP9PVvOFhpZmQQiYipJhEN8sYoetjQTw== X-Received: by 2002:a65:6493:: with SMTP id e19mr4219366pgv.276.1602873739069; Fri, 16 Oct 2020 11:42:19 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 06/12] linux-user/elfload: Adjust iteration over phdr Date: Fri, 16 Oct 2020 11:42:01 -0700 Message-Id: <20201016184207.786698-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::444; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x444.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The second loop uses a loop induction variable, and the first does not. Transform the first to match the second, to simplify a following patch moving code between them. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- linux-user/elfload.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 290ef70222..210592aa90 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2426,17 +2426,18 @@ static void load_elf_image(const char *image_name, = int image_fd, loaddr =3D -1, hiaddr =3D 0; info->alignment =3D 0; for (i =3D 0; i < ehdr->e_phnum; ++i) { - if (phdr[i].p_type =3D=3D PT_LOAD) { - abi_ulong a =3D phdr[i].p_vaddr - phdr[i].p_offset; + struct elf_phdr *eppnt =3D phdr + i; + if (eppnt->p_type =3D=3D PT_LOAD) { + abi_ulong a =3D eppnt->p_vaddr - eppnt->p_offset; if (a < loaddr) { loaddr =3D a; } - a =3D phdr[i].p_vaddr + phdr[i].p_memsz; + a =3D eppnt->p_vaddr + eppnt->p_memsz; if (a > hiaddr) { hiaddr =3D a; } ++info->nsegs; - info->alignment |=3D phdr[i].p_align; + info->alignment |=3D eppnt->p_align; } } =20 --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874293; cv=none; d=zohomail.com; s=zohoarc; b=MdZCwLPWLOPZUzMJ8iw9S6PQEDcwdZlm0GaUm9DbzeG/XtVdfaZNA/B2LtdU+GF+FywAF9X3632gEMgYuhkjoTnxJ7aWYMRrGRHjWRk4Rct29HHTthXq4KfFwUBvZZcDIvm6fBToflI3CWcmER/Bhg/Nqm5ZZmqq5ylwONyRBG0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874293; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=XLExgzrLRIoZ+1AkNjtHtGQ6oai05Dc/yN88SMU2dO4=; b=g/Kz1Os3pb3Vmnt4Y+1uz/4lYGk66RYamBOMNn1YxSTHlfElZOjX5S6zDQLGCgPzpBDVek6AFp8c2NC/kix0aiwxvNewEMEgDQFhYaGKyiSw1hlu5YBe7T13c6jE0BrMVTlIM/qFWHBviDLZhgiFOKCtFW1FSiD7XlqlTXArdm4= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874293594261.4925116255895; Fri, 16 Oct 2020 11:51:33 -0700 (PDT) Received: from localhost ([::1]:46240 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUpA-0007oz-A2 for importer@patchew.org; Fri, 16 Oct 2020 14:51:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55312) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgX-0000Xe-CX for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:37 -0400 Received: from mail-pg1-x544.google.com ([2607:f8b0:4864:20::544]:44051) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgK-00028K-0S for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:37 -0400 Received: by mail-pg1-x544.google.com with SMTP id o3so1941911pgr.11 for ; Fri, 16 Oct 2020 11:42:21 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:19 -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=XLExgzrLRIoZ+1AkNjtHtGQ6oai05Dc/yN88SMU2dO4=; b=hPk1qod+fK8AtQQrSb7TPV6K9ZeH6o4v5Hy6KIGmSclYFut1xPUDzTFQKBacGsalLz nQW64DIwzktBdMA+Nl1k0fRJQv7vPs5h2oruYo59xIbLxcSnQ4AkvW8Yp1pIql7mHZ6b VEkCAPTkO39Mjd0oOKm9ZurYx6KKpEHiSvo6UTa/2yZTRouCkZNbVVCCjEkmKmGdCPD5 +kSi9O+if6bYOraccuVhleCD0gEl5h2tNFu1xUue/G7Me4ieOABxhdcRp/5LMOwX9cJN +hQalGw5bK/I3fr+mAGXcahuMiyrgXEbbnP/EoUgafb/mOjc2M3ChfVCSQJG+1K9wQqe Kg2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=XLExgzrLRIoZ+1AkNjtHtGQ6oai05Dc/yN88SMU2dO4=; b=KJD3y/8xBgFZuBWgeQua2I3wFGbOGoNjSrBHaJspzaTuq8a1hJN75wwUUf7mnonh8j G5hyqc5jfuOKOnBxakrCfCo21yXpucTcOzz71vi0bsiSD/6bglWrCv/q5Tv7aoxhvxXm 75Rommde0qdEvArrwbJ78oMyB227v/oWafNeHebok795Uwt2BpUbTCNFaJFRGxMFN7SM Rf7OSG4tlzEHqGc9reNc5N3ordULNeG9MkYM/9LJQU9zuRz44OVnyNLDpbSx6QGZbB9k 8ZMp197YZjh3nEfhlVm31D90Ya8KYBcctQYcgSKwwkTEBkVKCjz7l5vsSq/rjFV7aHza 6Ffg== X-Gm-Message-State: AOAM531mLJFkvzc/Ijr2DTGgkTjimnP0ONaGdhvvWxYTCGhsSEqwGTUI Pun7Q+Wd/nafMTrgnN0mT5IfYlZHt6Pp3g== X-Google-Smtp-Source: ABdhPJweavnub6Y8gAoYuo2wCaYnYwsqEqkbeNMd+w8JQVgmsJQTAjEUSGzlkVW+97s/Ltt5clFI8g== X-Received: by 2002:a62:7ad3:0:b029:155:7c08:cc9a with SMTP id v202-20020a627ad30000b02901557c08cc9amr4956913pfc.28.1602873740299; Fri, 16 Oct 2020 11:42:20 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 07/12] linux-user/elfload: Move PT_INTERP detection to first loop Date: Fri, 16 Oct 2020 11:42:02 -0700 Message-Id: <20201016184207.786698-8-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::544; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x544.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" For BTI, we need to know if the executable is static or dynamic, which means looking for PT_INTERP earlier. Signed-off-by: Richard Henderson --- linux-user/elfload.c | 60 +++++++++++++++++++++++--------------------- 1 file changed, 31 insertions(+), 29 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 210592aa90..107a628a9e 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2421,8 +2421,10 @@ static void load_elf_image(const char *image_name, i= nt image_fd, =20 mmap_lock(); =20 - /* Find the maximum size of the image and allocate an appropriate - amount of memory to handle that. */ + /* + * Find the maximum size of the image and allocate an appropriate + * amount of memory to handle that. Locate the interpreter, if any. + */ loaddr =3D -1, hiaddr =3D 0; info->alignment =3D 0; for (i =3D 0; i < ehdr->e_phnum; ++i) { @@ -2438,6 +2440,33 @@ static void load_elf_image(const char *image_name, i= nt image_fd, } ++info->nsegs; info->alignment |=3D eppnt->p_align; + } else if (eppnt->p_type =3D=3D PT_INTERP && pinterp_name) { + g_autofree char *interp_name =3D NULL; + + if (*pinterp_name) { + errmsg =3D "Multiple PT_INTERP entries"; + goto exit_errmsg; + } + interp_name =3D g_malloc(eppnt->p_filesz); + if (!interp_name) { + goto exit_perror; + } + + if (eppnt->p_offset + eppnt->p_filesz <=3D BPRM_BUF_SIZE) { + memcpy(interp_name, bprm_buf + eppnt->p_offset, + eppnt->p_filesz); + } else { + retval =3D pread(image_fd, interp_name, eppnt->p_filesz, + eppnt->p_offset); + if (retval !=3D eppnt->p_filesz) { + goto exit_perror; + } + } + if (interp_name[eppnt->p_filesz - 1] !=3D 0) { + errmsg =3D "Invalid PT_INTERP entry"; + goto exit_errmsg; + } + *pinterp_name =3D g_steal_pointer(&interp_name); } } =20 @@ -2590,33 +2619,6 @@ static void load_elf_image(const char *image_name, i= nt image_fd, if (vaddr_em > info->brk) { info->brk =3D vaddr_em; } - } else if (eppnt->p_type =3D=3D PT_INTERP && pinterp_name) { - g_autofree char *interp_name =3D NULL; - - if (*pinterp_name) { - errmsg =3D "Multiple PT_INTERP entries"; - goto exit_errmsg; - } - interp_name =3D g_malloc(eppnt->p_filesz); - if (!interp_name) { - goto exit_perror; - } - - if (eppnt->p_offset + eppnt->p_filesz <=3D BPRM_BUF_SIZE) { - memcpy(interp_name, bprm_buf + eppnt->p_offset, - eppnt->p_filesz); - } else { - retval =3D pread(image_fd, interp_name, eppnt->p_filesz, - eppnt->p_offset); - if (retval !=3D eppnt->p_filesz) { - goto exit_perror; - } - } - if (interp_name[eppnt->p_filesz - 1] !=3D 0) { - errmsg =3D "Invalid PT_INTERP entry"; - goto exit_errmsg; - } - *pinterp_name =3D g_steal_pointer(&interp_name); #ifdef TARGET_MIPS } else if (eppnt->p_type =3D=3D PT_MIPS_ABIFLAGS) { Mips_elf_abiflags_v0 abiflags; --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874234; cv=none; d=zohomail.com; s=zohoarc; b=n4YyoeRpNvp9HXmXAew0VuAf6MLZzVxqnUsocfoL0/nHkqGGMMe8XrR70wQIeny6mFgNG22//gL2kC/1dt/VGCloJSaEuoJ5awxT7Rahx2CIIsYiIi9tZlCKCPDVAoPAKyBp6UIFCx0O/bY+yzR75Verk/oPNo5LensbCGkVNg8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874234; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=i9e477C0zg/4lfiSUJ/DUA8jokwPxP/mv4JJb8OtKrE=; b=bfe0668ctc6xXABsBSX8w8ABVJp2jy3N2X6oz2yUsyxYemSWrzgEgWiNY2tvV1AUSeACP8Y3/cwXsJIsX24hUiCoSHiR49Jo9anGiDJC9cVUT21QmQQ3aDx+eGHcm4IL4Jud5cDZuPKsIuXQBw9kIeevlUYueIKoHT3coDFAMHs= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874234516723.3161549967695; Fri, 16 Oct 2020 11:50:34 -0700 (PDT) Received: from localhost ([::1]:44744 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUoD-00078r-5s for importer@patchew.org; Fri, 16 Oct 2020 14:50:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55340) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUga-0000Za-0j for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:40 -0400 Received: from mail-pf1-x443.google.com ([2607:f8b0:4864:20::443]:33192) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgK-00028p-6q for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:39 -0400 Received: by mail-pf1-x443.google.com with SMTP id j18so2007484pfa.0 for ; Fri, 16 Oct 2020 11:42:23 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:21 -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=i9e477C0zg/4lfiSUJ/DUA8jokwPxP/mv4JJb8OtKrE=; b=Hma8PFOOUSyZuHGupLsrIDEd+B463Le1+wfEjBId3La0HB8rTbtco+wGlStXPPSrWy 4YpSIo4loPpV3sYdU1aMzrzPrSoBni+Y6LgJ2TPUuWHtWB7z5KUnQB3cBbwlMrbXiBOU 4K+aCBX2xaRm7h7p8vQWu7XWNTT7zcnVLgwi9bAGpjM0TS1L2xryVTw1U73LFBa68z0+ dxlc7f3aKX4P2KO3P+2VdYyAxzMUAFr6LM7n5a9nyt730o0D0V4OysH1tBYvpiYD6VAQ FOSjMPRGlql9rBpUP5Asj396etEwM1uC6BnSSULk+RQaaOypM8KWBSqMkgZcdqvufwKU Dc+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=i9e477C0zg/4lfiSUJ/DUA8jokwPxP/mv4JJb8OtKrE=; b=d7mcTiIzFoedc9wzIpo0PA6uBEJ1QFeWgyHK5D9uBgZpCWoSjOI7FU7JsZnMPY0ygK J09T9RgagSSc16n3l/oxHvRfa4t6QkSVJNzpg+9iII5y0pRIpmWiz7qGsf7h2qK/IO8k WyTFgS7MZEmiSkxuqb1CI+xX0LDDYPzs+ubdby1nWMEEZU0emsF2fhgnD01S37PE7vGa 0Pn8dymTv9n031k9nZpfFjxmlUaJcfMvxlVNPS5zIOlZWkrNmVuW3Ho8bwRlryYvXyC4 /lT5aKg2EAHIlNG9Zekru5HGpSKNRGoaknxWuRVMV86uJqrLR+lToQ8M0MMfUvpzvBM2 7qTg== X-Gm-Message-State: AOAM532cERtd/LnWPjvLvKDmB7Lr3feJU6k8fmWWzs6XRBAaJBEZxQ9Z 7FHa1as2YyKI+iz3TLRbeoiGeimzn3cncQ== X-Google-Smtp-Source: ABdhPJy/jQqXXWiJw8kWMLzL2CeJGn48T2ImI9VpJn5CZW9UiLtxAu9Sl4lpMARtelG3fYP3t2Z7eA== X-Received: by 2002:a63:140e:: with SMTP id u14mr4075116pgl.91.1602873741953; Fri, 16 Oct 2020 11:42:21 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 08/12] linux-user/elfload: Use Error for load_elf_image Date: Fri, 16 Oct 2020 11:42:03 -0700 Message-Id: <20201016184207.786698-9-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::443; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x443.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This is a bit clearer than open-coding some of this with a bare c string. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- linux-user/elfload.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 107a628a9e..56fbda93d0 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -12,6 +12,7 @@ #include "qemu/guest-random.h" #include "qemu/units.h" #include "qemu/selfmap.h" +#include "qapi/error.h" =20 #ifdef _ARCH_PPC64 #undef ARCH_DLINFO @@ -2392,15 +2393,16 @@ static void load_elf_image(const char *image_name, = int image_fd, struct elf_phdr *phdr; abi_ulong load_addr, load_bias, loaddr, hiaddr, error; int i, retval; - const char *errmsg; + Error *err =3D NULL; =20 /* First of all, some simple consistency checks */ - errmsg =3D "Invalid ELF image for this architecture"; if (!elf_check_ident(ehdr)) { + error_setg(&err, "Invalid ELF image for this architecture"); goto exit_errmsg; } bswap_ehdr(ehdr); if (!elf_check_ehdr(ehdr)) { + error_setg(&err, "Invalid ELF image for this architecture"); goto exit_errmsg; } =20 @@ -2444,13 +2446,11 @@ static void load_elf_image(const char *image_name, = int image_fd, g_autofree char *interp_name =3D NULL; =20 if (*pinterp_name) { - errmsg =3D "Multiple PT_INTERP entries"; + error_setg(&err, "Multiple PT_INTERP entries"); goto exit_errmsg; } + interp_name =3D g_malloc(eppnt->p_filesz); - if (!interp_name) { - goto exit_perror; - } =20 if (eppnt->p_offset + eppnt->p_filesz <=3D BPRM_BUF_SIZE) { memcpy(interp_name, bprm_buf + eppnt->p_offset, @@ -2459,11 +2459,11 @@ static void load_elf_image(const char *image_name, = int image_fd, retval =3D pread(image_fd, interp_name, eppnt->p_filesz, eppnt->p_offset); if (retval !=3D eppnt->p_filesz) { - goto exit_perror; + goto exit_read; } } if (interp_name[eppnt->p_filesz - 1] !=3D 0) { - errmsg =3D "Invalid PT_INTERP entry"; + error_setg(&err, "Invalid PT_INTERP entry"); goto exit_errmsg; } *pinterp_name =3D g_steal_pointer(&interp_name); @@ -2520,7 +2520,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, (ehdr->e_type =3D=3D ET_EXEC ? MAP_FIXED : 0), -1, 0); if (load_addr =3D=3D -1) { - goto exit_perror; + goto exit_mmap; } load_bias =3D load_addr - loaddr; =20 @@ -2587,7 +2587,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, image_fd, eppnt->p_offset - vaddr_po); =20 if (error =3D=3D -1) { - goto exit_perror; + goto exit_mmap; } } =20 @@ -2623,7 +2623,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, } else if (eppnt->p_type =3D=3D PT_MIPS_ABIFLAGS) { Mips_elf_abiflags_v0 abiflags; if (eppnt->p_filesz < sizeof(Mips_elf_abiflags_v0)) { - errmsg =3D "Invalid PT_MIPS_ABIFLAGS entry"; + error_setg(&err, "Invalid PT_MIPS_ABIFLAGS entry"); goto exit_errmsg; } if (eppnt->p_offset + eppnt->p_filesz <=3D BPRM_BUF_SIZE) { @@ -2633,7 +2633,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, retval =3D pread(image_fd, &abiflags, sizeof(Mips_elf_abif= lags_v0), eppnt->p_offset); if (retval !=3D sizeof(Mips_elf_abiflags_v0)) { - goto exit_perror; + goto exit_read; } } bswap_mips_abiflags(&abiflags); @@ -2658,13 +2658,16 @@ static void load_elf_image(const char *image_name, = int image_fd, =20 exit_read: if (retval >=3D 0) { - errmsg =3D "Incomplete read of file header"; - goto exit_errmsg; + error_setg(&err, "Incomplete read of file header"); + } else { + error_setg_errno(&err, errno, "Error reading file header"); } - exit_perror: - errmsg =3D strerror(errno); + goto exit_errmsg; + exit_mmap: + error_setg_errno(&err, errno, "Error mapping file"); + goto exit_errmsg; exit_errmsg: - fprintf(stderr, "%s: %s\n", image_name, errmsg); + error_reportf_err(err, "%s: ", image_name); exit(-1); } =20 --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874528; cv=none; d=zohomail.com; s=zohoarc; b=lmEL7+wukm2BNp0UhbWl8wEmf3734x316aVCQYG1F+wW+62zi/ViELghGb928LRs08Un40HKLC1WmR5NL0ProcD1DnM1LqNeqowJelYSdoRO203fdIpmIw++23w1TdVP5BDA+gGbLNo+5hWgflh5pBAN3mvRaiwUzV8hm6M3q5A= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874528; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=r7Om/lCAM0XeGEoR/BbgvQnU929VV6uqCsbicYkIs8s=; b=hDP0MBzrF4Ho2PMLqgOrPer8orO22NxU2YSHkx0UFpcbkMXYzP7kA/2gryeccVvSeGIvdk853Wal0PHFA8tNnGkQankcDcVK4E736TjksmFw/cFGSB0RYksTzArOw2Y+C+bdufdEvr2ZwVnQB7CmgJwEezCC4r53aSsSdHmXX6o= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874528901199.93414716097686; Fri, 16 Oct 2020 11:55:28 -0700 (PDT) Received: from localhost ([::1]:56830 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUsx-0003vi-HB for importer@patchew.org; Fri, 16 Oct 2020 14:55:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55412) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgf-0000cw-0G for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:45 -0400 Received: from mail-pj1-x1041.google.com ([2607:f8b0:4864:20::1041]:36805) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgM-00029T-4T for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:44 -0400 Received: by mail-pj1-x1041.google.com with SMTP id a1so1995697pjd.1 for ; Fri, 16 Oct 2020 11:42:24 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:22 -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=r7Om/lCAM0XeGEoR/BbgvQnU929VV6uqCsbicYkIs8s=; b=nWnfj2+NfwHyIX0khnpHi9q/tGs5ljebusoiCWy+naSMt1TlymRG1STYDRb8oYYr1w BMhKdsV2CufxXdeqs2lK2WMae0E6cV6p/ik9hhdmaaniQqxGQco4PiicvdaSz+4Jy5cD FpRr6Ty8xH5bfIv+ekHLKCgJBC8pPlEQFe6K4SRDGg1MrZSd7eX+Yj08Lu8VL1my1yAH U1C4wI9dOEqwN5REY4zLyIcS2Pzj+tXtpf/X7XCnrE1hxV7rWTruH9eMRp47jsfkod1B tPuVK9up/E06g5bNCDEkKx7sdPsjMR/FXY17P/Q0ZyzDxtfTzBBZqykJSWv+liymJifR a/EQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=r7Om/lCAM0XeGEoR/BbgvQnU929VV6uqCsbicYkIs8s=; b=R7wf4X7NZDnZSj2sdX6nfN9JZSip07j+2ET9Pfo+dOHfsJWxPNtmDoQkaAZmI8OMQf 06LSkfvG2sXKH9oxZVESTxylWblplHUp/48Y99Zn6NSANmsbfKggVXgcfsiIC8ag5WeS R1I1dT0DNWgpSbBLJxvn4J+jK0Ez4ZsgBvxJEm2kBelrIki8tvzQap6nG8IX9i/lEbmf Jw3u/m1Anr0dBXa5kNwh/vRi5TNS2KpAd5qDnmbIWqq1rCa6fpVP17/jMLgLcjmn4bUu O3aNRfW1IN6nNYA0O1JBsUtwXpghX4KgrNlRYBpBMC1+9Fc301YnJUYb7ckxXWdknNu9 +X3Q== X-Gm-Message-State: AOAM532LV89hNepts8IXGZKvKSmvILEWT9TTXyWs2J90e5oKrRZFLS/o dDLrYSokIQEy+7AAWlZhMEpqpgllK061Sw== X-Google-Smtp-Source: ABdhPJxzALA8rRT2Is4FUDpsg+Rnn0qMwOW69zmiptnYlPkxr06rDzUX7Hyt8oLEJz6QZVjztVdGsw== X-Received: by 2002:a17:90a:c285:: with SMTP id f5mr5594904pjt.87.1602873743570; Fri, 16 Oct 2020 11:42:23 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 09/12] linux-user/elfload: Use Error for load_elf_interp Date: Fri, 16 Oct 2020 11:42:04 -0700 Message-Id: <20201016184207.786698-10-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::1041; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1041.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This is slightly clearer than just using strerror, though the different forms produced by error_setg_file_open and error_setg_errno isn't entirely convenient. Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- linux-user/elfload.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 56fbda93d0..04c04bc260 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2675,26 +2675,27 @@ static void load_elf_interp(const char *filename, s= truct image_info *info, char bprm_buf[BPRM_BUF_SIZE]) { int fd, retval; + Error *err =3D NULL; =20 fd =3D open(path(filename), O_RDONLY); if (fd < 0) { - goto exit_perror; + error_setg_file_open(&err, errno, filename); + error_report_err(err); + exit(-1); } =20 retval =3D read(fd, bprm_buf, BPRM_BUF_SIZE); if (retval < 0) { - goto exit_perror; + error_setg_errno(&err, errno, "Error reading file header"); + error_reportf_err(err, "%s: ", filename); + exit(-1); } + if (retval < BPRM_BUF_SIZE) { memset(bprm_buf + retval, 0, BPRM_BUF_SIZE - retval); } =20 load_elf_image(filename, fd, info, NULL, bprm_buf); - return; - - exit_perror: - fprintf(stderr, "%s: %s\n", filename, strerror(errno)); - exit(-1); } =20 static int symfind(const void *s0, const void *s1) --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874473; cv=none; d=zohomail.com; s=zohoarc; b=P1c7hhSTA3pcHEANEVZYKRG57xoe9TxLSzyubRXlAdtuE6IpjkIABXs2DBurSF9585xSNOj+TL3FVsZWmt6a4LHMfUUlRPoXuHaxjJl43vsebiNTHVFKOag1tbZke/h0YR6S/k+3/64yQFOwS5bNOMJVCzOVmb4eL5kV3fQ0v6g= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874473; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=uXEiXCwmZ4IatXzjo8oCm1sQVSclKFFXnkVflorhWjg=; b=VDEhFP8NEA/FBDzHDuTJo7rWFhPg7h/hO6FP1oI8rqpfWWjQVHNeq0Nn5sqRIialzoJsz0dxyzH2OlaL9p5qBjvBq7Gkek+tqODBpA4Tq6PFiFHnGtuc6XTv7q2A77q8YLrkbMk53ki0Clja4CPqGF+uByn+/zShK1BejF86F5c= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874473293481.7437217712894; Fri, 16 Oct 2020 11:54:33 -0700 (PDT) Received: from localhost ([::1]:54294 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUs3-0002pK-NB for importer@patchew.org; Fri, 16 Oct 2020 14:54:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55394) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUge-0000cq-58 for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:45 -0400 Received: from mail-pl1-x644.google.com ([2607:f8b0:4864:20::644]:40994) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgN-00029v-03 for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:43 -0400 Received: by mail-pl1-x644.google.com with SMTP id w11so1744712pll.8 for ; Fri, 16 Oct 2020 11:42:26 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:24 -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=uXEiXCwmZ4IatXzjo8oCm1sQVSclKFFXnkVflorhWjg=; b=bPf5xCPqRF90jEQztTuX2AbkOBuzKtPES2JmlFdPHK44OOsRCmiRI/yaDfopNwCyYN vwh6U7s7U18qjhN0ZAydje+hrZm7+0VCBNfbx86jd66rFEVffKVvAE8aF7qcnJdfp1uq ZvYa2Z1QJ4IkYPUQiBAXrm+aUCBsMc8V8UfDFRXX8DdS87aXoKdCxN5nz5jmwZmQJnKu BYOIGlaZY28R6W1csRrZAkJy/VvD5FdH3nqxzsbH5vPQFtiOvsJFTW+7hBCh9ZcYDOTU JodcCvX/FceVbFJDoDC5bFpNZB6LHNVwdl50nsTkV6XD9EcUGSLdsxlI3c4CzbI0Fbpz CJ6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=uXEiXCwmZ4IatXzjo8oCm1sQVSclKFFXnkVflorhWjg=; b=jFZqq3Lpir5z+gcGuS+QhiC8/yuVgr2IUWAJ8fkoxcy1/WdN+eWr0udiNvsNP4bo9R D9P99/PIkkyz2YvGiQ68ctrpgNpx4JvBH2zVdCEOKZopGnRHWl5aGSR/SE7fKeBd23LD 2n52SbwROGnJRQUFaY2IwOkCNCt3GB2f/0sdJJ6dZCzHgl9R4NWFDSNsZFmm8/Cq+8qw xc3UZdHcpRqqonnMMSVK+dC4EJLvmIo/CkDpUBYYckZUhZ3QWeoP/EKlBzjOT50yKXqP D974hxC7I8Ern99KsPLbT9Z/rKHGST3VG8f+1Yn8oCkFYXW6pdb++J4CBIVSWqz4n0xB lbJw== X-Gm-Message-State: AOAM533P1Pqwz5V0WdWUcpb4UUClD7rPM9jADtvfMUfhwAXchl5MllAZ Y0EqymIYmvYL8vXszhkZZoO5L8bvbTWYrw== X-Google-Smtp-Source: ABdhPJy9H5Dn8ChfSNqWtEuMUF/ixcqNo6yrM+L+78ts70mCtIyLSts9/sjGAZJ6uK8Ga3omDkXlqg== X-Received: by 2002:a17:90a:7486:: with SMTP id p6mr5477844pjk.162.1602873745012; Fri, 16 Oct 2020 11:42:25 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 10/12] linux-user/elfload: Parse NT_GNU_PROPERTY_TYPE_0 notes Date: Fri, 16 Oct 2020 11:42:05 -0700 Message-Id: <20201016184207.786698-11-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::644; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x644.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This is generic support, with the code disabled for all targets. Signed-off-by: Richard Henderson --- v9: Only map the startup executable with BTI; anything else must be handled by the interpreter. v10: Split out preparatory patches (pmm). v11: Mirror(-ish) the kernel's code structure (pmm). --- linux-user/qemu.h | 4 ++ linux-user/elfload.c | 157 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 161 insertions(+) diff --git a/linux-user/qemu.h b/linux-user/qemu.h index 941ca99722..534753ca12 100644 --- a/linux-user/qemu.h +++ b/linux-user/qemu.h @@ -61,6 +61,10 @@ struct image_info { abi_ulong interpreter_loadmap_addr; abi_ulong interpreter_pt_dynamic_addr; struct image_info *other_info; + + /* For target-specific processing of NT_GNU_PROPERTY_TYPE_0. */ + uint32_t note_flags; + #ifdef TARGET_MIPS int fp_abi; int interp_fp_abi; diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 04c04bc260..428dcaa152 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1522,6 +1522,15 @@ static void elf_core_copy_regs(target_elf_gregset_t = *regs, =20 #include "elf.h" =20 +static bool arch_parse_elf_property(uint32_t pr_type, uint32_t pr_datasz, + const uint32_t *data, + struct image_info *info, + Error **errp) +{ + g_assert_not_reached(); +} +#define ARCH_USE_GNU_PROPERTY 0 + struct exec { unsigned int a_info; /* Use macros N_MAGIC, etc for access */ @@ -2373,6 +2382,150 @@ void probe_guest_base(const char *image_name, abi_u= long guest_loaddr, "@ 0x%" PRIx64 "\n", (uint64_t)guest_base); } =20 +enum { + /* The string "GNU\0" as a magic number. */ + GNU0_MAGIC =3D const_le32('G' | 'N' << 8 | 'U' << 16), + NOTE_DATA_SZ =3D 1 * KiB, + NOTE_NAME_SZ =3D 4, + ELF_GNU_PROPERTY_ALIGN =3D ELF_CLASS =3D=3D ELFCLASS32 ? 4 : 8, +}; + +/* + * Process a single gnu_property entry. + * Return false for error. + */ +static bool parse_elf_property(const uint32_t *data, int *off, int datasz, + struct image_info *info, bool have_prev_typ= e, + uint32_t *prev_type, Error **errp) +{ + uint32_t pr_type, pr_datasz, step; + + if (*off > datasz || !QEMU_IS_ALIGNED(*off, ELF_GNU_PROPERTY_ALIGN)) { + goto error_data; + } + datasz -=3D *off; + data +=3D *off / sizeof(uint32_t); + + if (datasz < 2 * sizeof(uint32_t)) { + goto error_data; + } + pr_type =3D data[0]; + pr_datasz =3D data[1]; + data +=3D 2; + datasz -=3D 2 * sizeof(uint32_t); + step =3D ROUND_UP(pr_datasz, ELF_GNU_PROPERTY_ALIGN); + if (step > datasz) { + goto error_data; + } + + /* Properties are supposed to be unique and sorted on pr_type. */ + if (have_prev_type && pr_type <=3D *prev_type) { + if (pr_type =3D=3D *prev_type) { + error_setg(errp, "Duplicate property in PT_GNU_PROPERTY"); + } else { + error_setg(errp, "Unsorted property in PT_GNU_PROPERTY"); + } + return false; + } + *prev_type =3D pr_type; + + if (!arch_parse_elf_property(pr_type, pr_datasz, data, info, errp)) { + return false; + } + + *off +=3D 2 * sizeof(uint32_t) + step; + return true; + + error_data: + error_setg(errp, "Ill-formed property in PT_GNU_PROPERTY"); + return false; +} + +/* Process NT_GNU_PROPERTY_TYPE_0. */ +static bool parse_elf_properties(int image_fd, + struct image_info *info, + const struct elf_phdr *phdr, + char bprm_buf[BPRM_BUF_SIZE], + Error **errp) +{ + union { + struct elf_note nhdr; + uint32_t data[NOTE_DATA_SZ / sizeof(uint32_t)]; + } note; + + int n, off, datasz; + bool have_prev_type; + uint32_t prev_type; + + /* Unless the arch requires properties, ignore them. */ + if (!ARCH_USE_GNU_PROPERTY) { + return true; + } + + /* If the properties are crazy large, that's too bad. */ + n =3D phdr->p_filesz; + if (n > sizeof(note)) { + error_setg(errp, "PT_GNU_PROPERTY too large"); + return false; + } + if (n < sizeof(note.nhdr)) { + error_setg(errp, "PT_GNU_PROPERTY too small"); + return false; + } + + if (phdr->p_offset + n <=3D BPRM_BUF_SIZE) { + memcpy(¬e, bprm_buf + phdr->p_offset, n); + } else { + ssize_t len =3D pread(image_fd, ¬e, n, phdr->p_offset); + if (len !=3D n) { + error_setg_errno(errp, errno, "Error reading file header"); + return false; + } + } + + /* + * The contents of a valid PT_GNU_PROPERTY is a sequence + * of uint32_t -- swap them all now. + */ +#ifdef BSWAP_NEEDED + for (int i =3D 0; i < n / 4; i++) { + bswap32s(note.data + i); + } +#endif + + /* + * Note that nhdr is 3 words, and that the "name" described by namesz + * immediately follows nhdr and is thus at the 4th word. Further, all + * of the inputs to the kernel's round_up are multiples of 4. + */ + if (note.nhdr.n_type !=3D NT_GNU_PROPERTY_TYPE_0 || + note.nhdr.n_namesz !=3D NOTE_NAME_SZ || + note.data[3] !=3D GNU0_MAGIC) { + error_setg(errp, "Invalid note in PT_GNU_PROPERTY"); + return false; + } + off =3D sizeof(note.nhdr) + NOTE_NAME_SZ; + + datasz =3D note.nhdr.n_descsz + off; + if (datasz > n) { + error_setg(errp, "Invalid note size in PT_GNU_PROPERTY"); + return false; + } + + have_prev_type =3D false; + prev_type =3D 0; + while (1) { + if (off =3D=3D datasz) { + return true; /* end, exit ok */ + } + if (!parse_elf_property(note.data, &off, datasz, info, + have_prev_type, &prev_type, errp)) { + return false; + } + have_prev_type =3D true; + } +} + /* Load an ELF image into the address space. =20 IMAGE_NAME is the filename of the image, to use in error messages. @@ -2467,6 +2620,10 @@ static void load_elf_image(const char *image_name, i= nt image_fd, goto exit_errmsg; } *pinterp_name =3D g_steal_pointer(&interp_name); + } else if (eppnt->p_type =3D=3D PT_GNU_PROPERTY) { + if (!parse_elf_properties(image_fd, info, eppnt, bprm_buf, &er= r)) { + goto exit_errmsg; + } } } =20 --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874705; cv=none; d=zohomail.com; s=zohoarc; b=UFn/Tub/ctPqM6ARZcFjjWw2hPG5SA2TrBQe7EO1VUH4h4qbWIQQZW72PyZb1Z+GioiWWXp6KCr+ITldnK0Th/hfKhVJeHZ/4fC5tZpQykhKLy96J1pUq0iRGY3k8eeUEPJbLWLlIpYCxuz2FxsogR+8xduiUfaluuDF2x1jqgI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874705; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=kGZNmudBhXIU/a8gp/KXcyIKcPKoqtSco3EGBov+V2s=; b=mdFNxcsQYqriVjaswh1zKXDP1ommQ/vHLdbVUT+UVax3KNmLIjKZ0gd+mCyQyIMnE6VoZKXMm1o3KicFb9Mhd6PBCS5w+BQa6PdzO2wiOwlZ5IF9U8Ea/6HBmcJ3HGnXFzuzVd78BRi4/3DB/gX1TtFE1z93P3ROOPYcn2o4Ag8= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874705244754.803431974025; Fri, 16 Oct 2020 11:58:25 -0700 (PDT) Received: from localhost ([::1]:33724 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUvn-00069T-MF for importer@patchew.org; Fri, 16 Oct 2020 14:58:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55474) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgi-0000fO-5D for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:48 -0400 Received: from mail-pf1-x444.google.com ([2607:f8b0:4864:20::444]:39638) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgQ-0002AL-NT for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:47 -0400 Received: by mail-pf1-x444.google.com with SMTP id n14so1990483pff.6 for ; Fri, 16 Oct 2020 11:42:28 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:25 -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=kGZNmudBhXIU/a8gp/KXcyIKcPKoqtSco3EGBov+V2s=; b=KkQnKXqAJpPxExziYSE5F6lME8UFZmYRo3UqCal0JjMWuckbI/lZHAC8pmcFSypTl+ uhIjZaE880M8+3VY+bZKUFcRPyNrUjOeX41+kFLMx/zTklG0CeQFyz7nBAYtwn5X6gXk 54yD+sIyPEXFmenJrYbpTeVYJgnCdqNwLLSPdFpn9haYsUmlsC50MTsUUwtYf/7SuAHX V61+yiOUGhMAGP3I0dgZvbN9alrs+rGCME2qG1YhCnCLPTna+kOUvqYqymGt9KFf6W9h NkmM/QExcb51nr1UqlE7Yd8qrY9/5fZciEtafXUA8WGadDId3yx807lpTkEO9n1TJCWi cKHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=kGZNmudBhXIU/a8gp/KXcyIKcPKoqtSco3EGBov+V2s=; b=Wb28M0uQRjiSEgTqDIzKht4ZD6u8asOGLExRDARrB6AtafKY/WVTstsjDV5abVn8cg xNblueucwFp7ORztdi/w2mzuscT6A5qJlMRWge4ckyOFtNrKo+ZYnNbZAqM/aUwmfacN rGrZyLod9JmbEL7JQz360rhWTPoSoW7X0BN/A3MTUsTHuwvS24x6B6bgVk1p4rSqhY4C 1kEl8N6EIOzno9RXcEyqJ8DHXEe0j4vjBtVTaJS1ryTUfWstoxG2DCzfU1UfptlnXHNA 2tOOK6UrdSZYqIAAe7HaRZNL/JvHfv9PV1prdUsPFS5DrjPAxANnK9cElts5XtQBVE9V oBEQ== X-Gm-Message-State: AOAM533b3j0iAZCR3AysxV0ndMcQGRsX7E8945i9tuj1g975zA/GwgOI pLWm23J3zU+9y+xp4MLy9sbektERWEKQ5Q== X-Google-Smtp-Source: ABdhPJzJge76pwJCxGj0+2oKCY6gqJLt3HoWJfSHXqqmhMmb41blUIl6ptCFBqumAjGTeYLG67IKhA== X-Received: by 2002:a63:e111:: with SMTP id z17mr4234127pgh.267.1602873746958; Fri, 16 Oct 2020 11:42:26 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 11/12] linux-user/elfload: Parse GNU_PROPERTY_AARCH64_FEATURE_1_AND Date: Fri, 16 Oct 2020 11:42:06 -0700 Message-Id: <20201016184207.786698-12-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 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::444; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x444.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Use the new generic support for NT_GNU_PROPERTY_TYPE_0. Signed-off-by: Richard Henderson --- v11: Split out aarch64 bits from generic patch. --- linux-user/elfload.c | 48 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 46 insertions(+), 2 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 428dcaa152..bf8c1bd253 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1522,6 +1522,28 @@ static void elf_core_copy_regs(target_elf_gregset_t = *regs, =20 #include "elf.h" =20 +/* We must delay the following stanzas until after "elf.h". */ +#if defined(TARGET_AARCH64) + +static bool arch_parse_elf_property(uint32_t pr_type, uint32_t pr_datasz, + const uint32_t *data, + struct image_info *info, + Error **errp) +{ + if (pr_type =3D=3D GNU_PROPERTY_AARCH64_FEATURE_1_AND) { + if (pr_datasz !=3D sizeof(uint32_t)) { + error_setg(errp, "Ill-formed GNU_PROPERTY_AARCH64_FEATURE_1_AN= D"); + return false; + } + /* We will extract GNU_PROPERTY_AARCH64_FEATURE_1_BTI later. */ + info->note_flags =3D *data; + } + return true; +} +#define ARCH_USE_GNU_PROPERTY 1 + +#else + static bool arch_parse_elf_property(uint32_t pr_type, uint32_t pr_datasz, const uint32_t *data, struct image_info *info, @@ -1531,6 +1553,8 @@ static bool arch_parse_elf_property(uint32_t pr_type,= uint32_t pr_datasz, } #define ARCH_USE_GNU_PROPERTY 0 =20 +#endif + struct exec { unsigned int a_info; /* Use macros N_MAGIC, etc for access */ @@ -2545,7 +2569,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, struct elfhdr *ehdr =3D (struct elfhdr *)bprm_buf; struct elf_phdr *phdr; abi_ulong load_addr, load_bias, loaddr, hiaddr, error; - int i, retval; + int i, retval, prot_exec; Error *err =3D NULL; =20 /* First of all, some simple consistency checks */ @@ -2712,6 +2736,26 @@ static void load_elf_image(const char *image_name, i= nt image_fd, info->brk =3D 0; info->elf_flags =3D ehdr->e_flags; =20 + prot_exec =3D PROT_EXEC; +#ifdef TARGET_AARCH64 + /* + * If the BTI feature is present, this indicates that the executable + * pages of the startup binary should be mapped with PROT_BTI, so that + * branch targets are enforced. + * + * The startup binary is either the interpreter or the static executab= le. + * The interpreter is responsible for all pages of a dynamic executabl= e. + * + * Elf notes are backward compatible to older cpus. + * Do not enable BTI unless it is supported. + */ + if ((info->note_flags & GNU_PROPERTY_AARCH64_FEATURE_1_BTI) + && (pinterp_name =3D=3D NULL || *pinterp_name =3D=3D 0) + && cpu_isar_feature(aa64_bti, ARM_CPU(thread_cpu))) { + prot_exec |=3D TARGET_PROT_BTI; + } +#endif + for (i =3D 0; i < ehdr->e_phnum; i++) { struct elf_phdr *eppnt =3D phdr + i; if (eppnt->p_type =3D=3D PT_LOAD) { @@ -2725,7 +2769,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, elf_prot |=3D PROT_WRITE; } if (eppnt->p_flags & PF_X) { - elf_prot |=3D PROT_EXEC; + elf_prot |=3D prot_exec; } =20 vaddr =3D load_bias + eppnt->p_vaddr; --=20 2.25.1 From nobody Fri Apr 26 20:57:33 2024 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 ARC-Seal: i=1; a=rsa-sha256; t=1602874985; cv=none; d=zohomail.com; s=zohoarc; b=Dq5gsXoy6dCl1VZVGQ+m1uvh9gVlRo+nM6Nk1pOXJS6Hqo2YcNIBqTTplBoaiBtvxIjstwpJhjWZls8/vmgWJI5Lxku2ntBNc5WrMHIAasKwN2TLVE2Mpx2po9cMcpbR8f7f9OjuNi4buFyCEgiI5NpPJyJAkckCf4S9i3/01lw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1602874985; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=sxotxj6XB7hzF7JenULfKlm4NqUCIgIUU5zaZ0WIWOQ=; b=UHpqsMV4bnBwXqCqMngRUikYlvOUMCp8Bn1XxVfxdwa28nCu6FMIXGEwIMfUAAXEPO7CgBRWE64C1zuB/aV+mcpUZuQKWTn1oyokSCc5+4JBmD1MyMo1OE3EVAANTCrLLgwFKPRkCXQZp0tZJ2n0KRpwDdj9aSOf5bffWpZx4vA= ARC-Authentication-Results: i=1; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1602874985740909.2591540934338; Fri, 16 Oct 2020 12:03:05 -0700 (PDT) Received: from localhost ([::1]:40436 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTV0K-0000iy-6L for importer@patchew.org; Fri, 16 Oct 2020 15:03:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55476) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgi-0000gS-Hj for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:48 -0400 Received: from mail-pl1-x62a.google.com ([2607:f8b0:4864:20::62a]:43377) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgR-0002Bn-OS for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:48 -0400 Received: by mail-pl1-x62a.google.com with SMTP id o9so1739478plx.10 for ; Fri, 16 Oct 2020 11:42:29 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:27 -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=sxotxj6XB7hzF7JenULfKlm4NqUCIgIUU5zaZ0WIWOQ=; b=yS2Jo41yV7EhlVhdqVxZ7EAubOw+rSsvov7dgPhqj481h70lP3dpb/mZwDCYW0hkP+ ZL3qx/vEyAcBsrtUOBNsbchYradWQl0z5ejy5foaLM9HNmPay7A7lmQ5gRAJH4/dbrrR 9CETd+4kfnNmFvMkM9bKqHcv9w19m5mdDAae/INUg2eqRjVHv2DCQ+Gskw1i+n0zZ470 zaQCZ3W3Uu3eNySOLxDtS0PVRaSIQK45Ipcfmhs0Y5Z4A46s2DHEo7oIoApyqlQR3ALr Miw2jmcnQNFqjxo2A10TC+7dEZyyFsD78fuCBrzx62kMYNszMK1clGhI4LCs0Gc87/os Iv1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=sxotxj6XB7hzF7JenULfKlm4NqUCIgIUU5zaZ0WIWOQ=; b=Ae3cSJf39lp48L7pJAUP4rh09JMnbHPc7w17JeqiQD8unvaW6/DEuykb9dZjEy2oZU DEmMJ7AbGZgHWfxr58N1wQ0XJyQF8uqOy2txV3x/36GFiaR/bzd8Y6P8JcMQOkX9NKY4 jA3heOtn5Ph7wCcO25lgoldIkmYUTzQ2IlLLMd88YQPd1+chiaPOC3E0Vrx9yy1+VCPo WzPr4kiALonWcwSJLpTIrnS/BviSXj6MBn1Ki90+zZRsvgwfWLkgCthPf/hoNeV498B9 0onKbkVrI3TOg2LJLun1stsFZutIsvkCI3GhjsM0OQOPARTulKKUx/2oFgYJSD/KC6KE g1tg== X-Gm-Message-State: AOAM532LEdZI0e2Q+Zu/WT0Mlm/CE9h8nwRaJmkmeohM2zS4/HMhuwPY 7DmL2dCspqFpFJ67j712l+wXvbKNKLCaWA== X-Google-Smtp-Source: ABdhPJzOnl5cpuWrA60i+NFXVU8zxCowjszm0rvCnuT52zUSguaWhUnTZN9+wwM+rH/Hmbd5zj2RZQ== X-Received: by 2002:a17:90a:be11:: with SMTP id a17mr5136520pjs.181.1602873748439; Fri, 16 Oct 2020 11:42:28 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 12/12] tests/tcg/aarch64: Add bti smoke tests Date: Fri, 16 Oct 2020 11:42:07 -0700 Message-Id: <20201016184207.786698-13-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-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::62a; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62a.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_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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) The note test requires gcc 10 for -mbranch-protection=3Dstandard. The mmap test uses PROT_BTI and does not require special compiler support. Acked-by: Alex Benn=C3=A9e Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- v9: Expect and require gcc 10. v11: Squash mmap smoke test. --- tests/tcg/aarch64/bti-1.c | 62 +++++++++++++++++ tests/tcg/aarch64/bti-2.c | 108 ++++++++++++++++++++++++++++++ tests/tcg/aarch64/bti-crt.inc.c | 51 ++++++++++++++ tests/tcg/aarch64/Makefile.target | 10 +++ tests/tcg/configure.sh | 4 ++ 5 files changed, 235 insertions(+) create mode 100644 tests/tcg/aarch64/bti-1.c create mode 100644 tests/tcg/aarch64/bti-2.c create mode 100644 tests/tcg/aarch64/bti-crt.inc.c diff --git a/tests/tcg/aarch64/bti-1.c b/tests/tcg/aarch64/bti-1.c new file mode 100644 index 0000000000..61924f0d7a --- /dev/null +++ b/tests/tcg/aarch64/bti-1.c @@ -0,0 +1,62 @@ +/* + * Branch target identification, basic notskip cases. + */ + +#include "bti-crt.inc.c" + +static void skip2_sigill(int sig, siginfo_t *info, ucontext_t *uc) +{ + uc->uc_mcontext.pc +=3D 8; + uc->uc_mcontext.pstate =3D 1; +} + +#define NOP "nop" +#define BTI_N "hint #32" +#define BTI_C "hint #34" +#define BTI_J "hint #36" +#define BTI_JC "hint #38" + +#define BTYPE_1(DEST) \ + asm("mov %0,#1; adr x16, 1f; br x16; 1: " DEST "; mov %0,#0" \ + : "=3Dr"(skipped) : : "x16") + +#define BTYPE_2(DEST) \ + asm("mov %0,#1; adr x16, 1f; blr x16; 1: " DEST "; mov %0,#0" \ + : "=3Dr"(skipped) : : "x16", "x30") + +#define BTYPE_3(DEST) \ + asm("mov %0,#1; adr x15, 1f; br x15; 1: " DEST "; mov %0,#0" \ + : "=3Dr"(skipped) : : "x15") + +#define TEST(WHICH, DEST, EXPECT) \ + do { WHICH(DEST); fail +=3D skipped ^ EXPECT; } while (0) + + +int main() +{ + int fail =3D 0; + int skipped; + + /* Signal-like with SA_SIGINFO. */ + signal_info(SIGILL, skip2_sigill); + + TEST(BTYPE_1, NOP, 1); + TEST(BTYPE_1, BTI_N, 1); + TEST(BTYPE_1, BTI_C, 0); + TEST(BTYPE_1, BTI_J, 0); + TEST(BTYPE_1, BTI_JC, 0); + + TEST(BTYPE_2, NOP, 1); + TEST(BTYPE_2, BTI_N, 1); + TEST(BTYPE_2, BTI_C, 0); + TEST(BTYPE_2, BTI_J, 1); + TEST(BTYPE_2, BTI_JC, 0); + + TEST(BTYPE_3, NOP, 1); + TEST(BTYPE_3, BTI_N, 1); + TEST(BTYPE_3, BTI_C, 1); + TEST(BTYPE_3, BTI_J, 0); + TEST(BTYPE_3, BTI_JC, 0); + + return fail; +} diff --git a/tests/tcg/aarch64/bti-2.c b/tests/tcg/aarch64/bti-2.c new file mode 100644 index 0000000000..6dc8908b5a --- /dev/null +++ b/tests/tcg/aarch64/bti-2.c @@ -0,0 +1,108 @@ +/* + * Branch target identification, basic notskip cases. + */ + +#include +#include +#include +#include +#include + +#ifndef PROT_BTI +#define PROT_BTI 0x10 +#endif + +static void skip2_sigill(int sig, siginfo_t *info, void *vuc) +{ + ucontext_t *uc =3D vuc; + uc->uc_mcontext.pc +=3D 8; + uc->uc_mcontext.pstate =3D 1; +} + +#define NOP "nop" +#define BTI_N "hint #32" +#define BTI_C "hint #34" +#define BTI_J "hint #36" +#define BTI_JC "hint #38" + +#define BTYPE_1(DEST) \ + "mov x1, #1\n\t" \ + "adr x16, 1f\n\t" \ + "br x16\n" \ +"1: " DEST "\n\t" \ + "mov x1, #0" + +#define BTYPE_2(DEST) \ + "mov x1, #1\n\t" \ + "adr x16, 1f\n\t" \ + "blr x16\n" \ +"1: " DEST "\n\t" \ + "mov x1, #0" + +#define BTYPE_3(DEST) \ + "mov x1, #1\n\t" \ + "adr x15, 1f\n\t" \ + "br x15\n" \ +"1: " DEST "\n\t" \ + "mov x1, #0" + +#define TEST(WHICH, DEST, EXPECT) \ + WHICH(DEST) "\n" \ + ".if " #EXPECT "\n\t" \ + "eor x1, x1," #EXPECT "\n" \ + ".endif\n\t" \ + "add x0, x0, x1\n\t" + +extern char test_begin[], test_end[]; + +asm("\n" +"test_begin:\n\t" + BTI_C "\n\t" + "mov x2, x30\n\t" + "mov x0, #0\n\t" + + TEST(BTYPE_1, NOP, 1) + TEST(BTYPE_1, BTI_N, 1) + TEST(BTYPE_1, BTI_C, 0) + TEST(BTYPE_1, BTI_J, 0) + TEST(BTYPE_1, BTI_JC, 0) + + TEST(BTYPE_2, NOP, 1) + TEST(BTYPE_2, BTI_N, 1) + TEST(BTYPE_2, BTI_C, 0) + TEST(BTYPE_2, BTI_J, 1) + TEST(BTYPE_2, BTI_JC, 0) + + TEST(BTYPE_3, NOP, 1) + TEST(BTYPE_3, BTI_N, 1) + TEST(BTYPE_3, BTI_C, 1) + TEST(BTYPE_3, BTI_J, 0) + TEST(BTYPE_3, BTI_JC, 0) + + "ret x2\n" +"test_end:" +); + +int main() +{ + struct sigaction sa; + + void *p =3D mmap(0, getpagesize(), + PROT_EXEC | PROT_READ | PROT_WRITE | PROT_BTI, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + if (p =3D=3D MAP_FAILED) { + perror("mmap"); + return 1; + } + + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction =3D skip2_sigill; + sa.sa_flags =3D SA_SIGINFO; + if (sigaction(SIGILL, &sa, NULL) < 0) { + perror("sigaction"); + return 1; + } + + memcpy(p, test_begin, test_end - test_begin); + return ((int (*)(void))p)(); +} diff --git a/tests/tcg/aarch64/bti-crt.inc.c b/tests/tcg/aarch64/bti-crt.in= c.c new file mode 100644 index 0000000000..47805f4e35 --- /dev/null +++ b/tests/tcg/aarch64/bti-crt.inc.c @@ -0,0 +1,51 @@ +/* + * Minimal user-environment for testing BTI. + * + * Normal libc is not (yet) built with BTI support enabled, + * and so could generate a BTI TRAP before ever reaching main. + */ + +#include +#include +#include +#include + +int main(void); + +void _start(void) +{ + exit(main()); +} + +void exit(int ret) +{ + register int x0 __asm__("x0") =3D ret; + register int x8 __asm__("x8") =3D __NR_exit; + + asm volatile("svc #0" : : "r"(x0), "r"(x8)); + __builtin_unreachable(); +} + +/* + * Irritatingly, the user API struct sigaction does not match the + * kernel API struct sigaction. So for simplicity, isolate the + * kernel ABI here, and make this act like signal. + */ +void signal_info(int sig, void (*fn)(int, siginfo_t *, ucontext_t *)) +{ + struct kernel_sigaction { + void (*handler)(int, siginfo_t *, ucontext_t *); + unsigned long flags; + unsigned long restorer; + unsigned long mask; + } sa =3D { fn, SA_SIGINFO, 0, 0 }; + + register int x0 __asm__("x0") =3D sig; + register void *x1 __asm__("x1") =3D &sa; + register void *x2 __asm__("x2") =3D 0; + register int x3 __asm__("x3") =3D sizeof(unsigned long); + register int x8 __asm__("x8") =3D __NR_rt_sigaction; + + asm volatile("svc #0" + : : "r"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x8) : "memory= "); +} diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile= .target index e7249915e7..d7d33e293c 100644 --- a/tests/tcg/aarch64/Makefile.target +++ b/tests/tcg/aarch64/Makefile.target @@ -25,6 +25,16 @@ run-pauth-%: QEMU_OPTS +=3D -cpu max run-plugin-pauth-%: QEMU_OPTS +=3D -cpu max endif =20 +# BTI Tests +# bti-1 tests the elf notes, so we require special compiler support. +ifneq ($(DOCKER_IMAGE)$(CROSS_CC_HAS_ARMV8_BTI),) +AARCH64_TESTS +=3D bti-1 +bti-1: CFLAGS +=3D -mbranch-protection=3Dstandard +bti-1: LDFLAGS +=3D -nostdlib +endif +# bti-2 tests PROT_BTI, so no special compiler support required. +AARCH64_TESTS +=3D bti-2 + # Semihosting smoke test for linux-user AARCH64_TESTS +=3D semihosting run-semihosting: semihosting diff --git a/tests/tcg/configure.sh b/tests/tcg/configure.sh index be51bdb5a4..e1b70e25f2 100755 --- a/tests/tcg/configure.sh +++ b/tests/tcg/configure.sh @@ -240,6 +240,10 @@ for target in $target_list; do -march=3Darmv8.3-a -o $TMPE $TMPC; then echo "CROSS_CC_HAS_ARMV8_3=3Dy" >> $config_target_mak fi + if do_compiler "$target_compiler" $target_compiler_cflags \ + -mbranch-protection=3Dstandard -o $TMPE $TMPC; then + echo "CROSS_CC_HAS_ARMV8_BTI=3Dy" >> $config_target_mak + fi ;; esac =20 --=20 2.25.1