forked from OSchip/llvm-project
Add a copy of missing <ucontext.h> for Android and enable ASan SEGV handler.
This change adds a copy of <ucontext.h> for Android found in google-breakpad that is missing from the official NDK. ASan SEGV handler is still disabled by default and can be enabled with ASAN_OPTIONS=handle_segv. llvm-svn: 201084
This commit is contained in:
Evgeniy Stepanov
parent
48ee75b7e3
commit
6db97e82a4
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@ -45,6 +45,8 @@ set(COMPILER_RT_DARWIN_SDK_SYSROOT ${COMPILER_RT_SOURCE_DIR}/SDKs/darwin)
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set(COMPILER_RT_LINUX_SDK_SYSROOT ${COMPILER_RT_SOURCE_DIR}/SDKs/linux)
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include(SanitizerUtils)
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set(COMPILER_RT_EXTRA_ANDROID_HEADERS ${COMPILER_RT_SOURCE_DIR}/third_party/android/include)
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# Detect whether the current target platform is 32-bit or 64-bit, and setup
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# the correct commandline flags needed to attempt to target 32-bit and 64-bit.
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if (NOT CMAKE_SIZEOF_VOID_P EQUAL 4 AND
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@ -24,6 +24,10 @@ set(ASAN_SOURCES
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include_directories(..)
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if(ANDROID)
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include_directories(${COMPILER_RT_EXTRA_ANDROID_HEADERS})
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endif()
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if (NOT MSVC)
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set(ASAN_CFLAGS
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${SANITIZER_COMMON_CFLAGS}
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@ -32,8 +32,9 @@
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#include <unistd.h>
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#include <unwind.h>
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#if !SANITIZER_ANDROID
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// FIXME: where to get ucontext on Android?
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#if SANITIZER_ANDROID
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#include <ucontext.h>
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#else
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#include <sys/ucontext.h>
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#endif
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@ -51,9 +52,7 @@ void *AsanDoesNotSupportStaticLinkage() {
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}
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void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) {
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#if SANITIZER_ANDROID
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*pc = *sp = *bp = 0;
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#elif defined(__arm__)
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#if defined(__arm__)
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ucontext_t *ucontext = (ucontext_t*)context;
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*pc = ucontext->uc_mcontext.arm_pc;
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*bp = ucontext->uc_mcontext.arm_fp;
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@ -0,0 +1,28 @@
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// Copyright (c) 2012, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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@ -0,0 +1,6 @@
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LLVM notes
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----------
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This directory contains Android header ucontext.h missing from the NDK.
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This version of the header was copied from google-breakpad at r1279.
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No local changes.
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@ -0,0 +1,174 @@
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// Copyright (c) 2012, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_SYS_UCONTEXT_H
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#define GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_SYS_UCONTEXT_H
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#include <sys/cdefs.h>
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#include <signal.h>
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#ifndef __BIONIC_HAVE_UCONTEXT_T
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// Ensure that 'stack_t' is defined.
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#include <asm/signal.h>
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// This version of the Android C library headers do not provide ucontext_t.
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// Provide custom definitions for Google Breakpad.
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#if defined(__arm__)
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// Ensure that 'struct sigcontext' is defined.
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#include <asm/sigcontext.h>
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typedef struct sigcontext mcontext_t;
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// The ARM kernel uses a 64-bit signal mask.
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typedef uint32_t kernel_sigmask_t[2];
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typedef struct ucontext {
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uint32_t uc_flags;
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struct ucontext* uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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kernel_sigmask_t uc_sigmask;
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// Other fields are not used by Google Breakpad. Don't define them.
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} ucontext_t;
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#elif defined(__i386__)
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/* 80-bit floating-point register */
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struct _libc_fpreg {
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unsigned short significand[4];
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unsigned short exponent;
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};
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/* Simple floating-point state, see FNSTENV instruction */
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struct _libc_fpstate {
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unsigned long cw;
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unsigned long sw;
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unsigned long tag;
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unsigned long ipoff;
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unsigned long cssel;
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unsigned long dataoff;
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unsigned long datasel;
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struct _libc_fpreg _st[8];
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unsigned long status;
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};
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typedef uint32_t greg_t;
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typedef struct {
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uint32_t gregs[19];
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struct _libc_fpstate* fpregs;
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uint32_t oldmask;
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uint32_t cr2;
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} mcontext_t;
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enum {
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REG_GS = 0,
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REG_FS,
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REG_ES,
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REG_DS,
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REG_EDI,
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REG_ESI,
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REG_EBP,
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REG_ESP,
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REG_EBX,
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REG_EDX,
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REG_ECX,
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REG_EAX,
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REG_TRAPNO,
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REG_ERR,
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REG_EIP,
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REG_CS,
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REG_EFL,
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REG_UESP,
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REG_SS,
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};
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// The i386 kernel uses a 64-bit signal mask.
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typedef uint32_t kernel_sigmask_t[2];
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typedef struct ucontext {
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uint32_t uc_flags;
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struct ucontext* uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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kernel_sigmask_t uc_sigmask;
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struct _libc_fpstate __fpregs_mem;
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} ucontext_t;
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#elif defined(__mips__)
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typedef struct {
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uint32_t regmask;
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uint32_t status;
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uint64_t pc;
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uint64_t gregs[32];
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uint64_t fpregs[32];
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uint32_t acx;
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uint32_t fpc_csr;
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uint32_t fpc_eir;
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uint32_t used_math;
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uint32_t dsp;
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uint64_t mdhi;
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uint64_t mdlo;
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uint32_t hi1;
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uint32_t lo1;
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uint32_t hi2;
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uint32_t lo2;
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uint32_t hi3;
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uint32_t lo3;
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} mcontext_t;
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// The MIPS kernel uses a 128-bit signal mask.
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typedef uint32_t kernel_sigmask_t[4];
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typedef struct ucontext {
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uint32_t uc_flags;
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struct ucontext* uc_link;
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stack_t uc_stack;
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mcontext_t uc_mcontext;
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kernel_sigmask_t uc_sigmask;
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// Other fields are not used by Google Breakpad. Don't define them.
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} ucontext_t;
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#else
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# error "Unsupported Android CPU ABI!"
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#endif
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#endif // __BIONIC_HAVE_UCONTEXT_T
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#ifdef __cplusplus
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} // extern "C"
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#endif // __cplusplus
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#endif // GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_SYS_UCONTEXT_H
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@ -0,0 +1,56 @@
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// Copyright (c) 2012, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_UCONTEXT_H
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#define GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_UCONTEXT_H
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#include <sys/cdefs.h>
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#ifdef __BIONIC_UCONTEXT_H
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#include <ucontext.h>
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#else
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#include <sys/ucontext.h>
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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// Provided by src/android/common/breakpad_getcontext.S
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int breakpad_getcontext(ucontext_t* ucp);
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#define getcontext(x) breakpad_getcontext(x)
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#ifdef __cplusplus
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} // extern "C"
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#endif // __cplusplus
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#endif // __BIONIC_UCONTEXT_H
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#endif // GOOGLE_BREAKPAD_COMMON_ANDROID_INCLUDE_UCONTEXT_H
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