dart-sdk/runtime/vm/signal_handler.h
Vyacheslav Egorov 6e28f8bb40 [vm] Avoid reserved register error on newer compilers
Don't mark SP as clobbered because newer clang versions
do not like that.

Fixes https://github.com/dart-lang/sdk/issues/46873

TEST=ci

Cq-Include-Trybots: luci.dart.try:vm-ffi-android-release-arm-try,vm-ffi-android-product-arm-try
Change-Id: I5b794e7bb02e62576c4c40b8132f9c798cb7639c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/209917
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
2021-08-16 11:11:04 +00:00

61 lines
1.9 KiB
C++

// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_VM_SIGNAL_HANDLER_H_
#define RUNTIME_VM_SIGNAL_HANDLER_H_
#include "vm/allocation.h"
#include "vm/globals.h"
#if defined(DART_HOST_OS_LINUX)
#include <signal.h> // NOLINT
#include <ucontext.h> // NOLINT
#elif defined(DART_HOST_OS_ANDROID)
#include <signal.h> // NOLINT
#if !defined(__BIONIC_HAVE_UCONTEXT_T)
#include <asm/sigcontext.h> // NOLINT
// If ucontext_t is not defined on Android, define it here.
typedef struct sigcontext mcontext_t;
typedef struct ucontext {
uint32_t uc_flags;
struct ucontext* uc_link;
stack_t uc_stack;
struct sigcontext uc_mcontext;
uint32_t uc_sigmask;
} ucontext_t;
#endif // !defined(__BIONIC_HAVE_UCONTEXT_T)
#elif defined(DART_HOST_OS_MACOS)
#include <signal.h> // NOLINT
#include <sys/ucontext.h> // NOLINT
#elif defined(DART_HOST_OS_WINDOWS)
// Stub out for windows.
struct siginfo_t;
struct mcontext_t;
struct sigset_t {};
#elif defined(DART_HOST_OS_FUCHSIA)
#include <signal.h> // NOLINT
#include <ucontext.h> // NOLINT
#endif
namespace dart {
typedef void (*SignalAction)(int signal, siginfo_t* info, void* context);
class SignalHandler : public AllStatic {
public:
static void Install(SignalAction action);
static void Remove();
static uintptr_t GetProgramCounter(const mcontext_t& mcontext);
static uintptr_t GetFramePointer(const mcontext_t& mcontext);
static uintptr_t GetCStackPointer(const mcontext_t& mcontext);
static uintptr_t GetDartStackPointer(const mcontext_t& mcontext);
static uintptr_t GetLinkRegister(const mcontext_t& mcontext);
};
#undef USE_SIGNAL_HANDLER_TRAMPOLINE
} // namespace dart
#endif // RUNTIME_VM_SIGNAL_HANDLER_H_