mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2025-02-19 10:46:28 +01:00
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
// Copyright 2013 Dolphin Emulator Project
|
|
// Licensed under GPLv2
|
|
// Refer to the license.txt file included.
|
|
|
|
|
|
#include <cstdio>
|
|
#include <signal.h>
|
|
#ifdef ANDROID
|
|
#include <asm/sigcontext.h>
|
|
#else
|
|
#include <execinfo.h>
|
|
#include <sys/ucontext.h> // Look in here for the context definition.
|
|
#endif
|
|
|
|
#include "Common/CommonFuncs.h"
|
|
#include "Common/CommonTypes.h"
|
|
#include "Core/MemTools.h"
|
|
#include "Core/HW/Memmap.h"
|
|
#include "Core/PowerPC/JitInterface.h"
|
|
#include "Core/PowerPC/PowerPC.h"
|
|
#include "Core/PowerPC/JitCommon/JitBase.h"
|
|
|
|
namespace EMM
|
|
{
|
|
#ifdef ANDROID
|
|
typedef struct sigcontext mcontext_t;
|
|
typedef struct ucontext {
|
|
uint32_t uc_flags;
|
|
struct ucontext* uc_link;
|
|
stack_t uc_stack;
|
|
mcontext_t uc_mcontext;
|
|
// Other fields are not used by Google Breakpad. Don't define them.
|
|
} ucontext_t;
|
|
#endif
|
|
|
|
static void sigsegv_handler(int sig, siginfo_t *info, void *raw_context)
|
|
{
|
|
if (sig != SIGSEGV)
|
|
{
|
|
// We are not interested in other signals - handle it as usual.
|
|
return;
|
|
}
|
|
ucontext_t *context = (ucontext_t *)raw_context;
|
|
int sicode = info->si_code;
|
|
if (sicode != SEGV_MAPERR && sicode != SEGV_ACCERR)
|
|
{
|
|
// Huh? Return.
|
|
return;
|
|
}
|
|
|
|
// Get all the information we can out of the context.
|
|
mcontext_t *ctx = &context->uc_mcontext;
|
|
|
|
// comex says hello, and is most curious whether this is arm_r10 for a
|
|
// reason as opposed to si_addr like the x64MemTools.cpp version. Is there
|
|
// even a need for this file to be architecture specific?
|
|
uintptr_t fault_memory_ptr = (uintptr_t)ctx->arm_r10;
|
|
|
|
if (!JitInterface::HandleFault(fault_memory_ptr, ctx))
|
|
{
|
|
// retry and crash
|
|
signal(SIGSEGV, SIG_DFL);
|
|
}
|
|
}
|
|
|
|
void InstallExceptionHandler()
|
|
{
|
|
struct sigaction sa;
|
|
sa.sa_handler = 0;
|
|
sa.sa_sigaction = &sigsegv_handler;
|
|
sa.sa_flags = SA_SIGINFO;
|
|
sigemptyset(&sa.sa_mask);
|
|
sigaction(SIGSEGV, &sa, nullptr);
|
|
}
|
|
|
|
void UninstallExceptionHandler() {}
|
|
|
|
} // namespace
|