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Comply with xash3d dmca request
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coderamen 2024-04-09 22:25:49 -05:00 committed by GitHub
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launcher/android/crashhandler.cpp
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/*
Copyright (C) 2022 nillerusr
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#include <stdio.h>
#include <string.h>
#include <dlfcn.h>
#include <unwind.h>
#include <android/log.h>
#include "tier0/dbg.h"
#include <stdlib.h>
#include <inttypes.h>
#include "libunwind/libunwind.h"
struct sigaction old_sa;
#define IN_LIBGCC2 1 // means we want to define __cxxabiv1::__cxa_demangle
namespace __cxxabiv1
{
extern "C"
{
#include "demangle/cp-demangle.c"
}
}
#define MAX_FRAMES 2048
struct backtrace_t
{
int count;
uintptr_t frames[MAX_FRAMES];
};
#define Log(msg) __android_log_print(ANDROID_LOG_DEBUG, "SRCENG", "%s", msg); DebugLogger()->Write(msg);
void printPC(void *pc)
{
char message[4096];
const char* symbol = "unknown";
Dl_info info = { 0 };
const char *fname = "unknown";
if( dladdr(pc, &info) <= 0 )
{
snprintf( message, sizeof(message), "0x%" PRIXPTR "\n", (uintptr_t)pc );
Log(message);
return;
}
if( info.dli_fname )
fname = info.dli_fname;
if( info.dli_sname )
symbol = info.dli_sname;
int status = 0;
char *demangled = __cxxabiv1::__cxa_demangle(symbol, 0, 0, &status);
if( NULL != demangled && 0 == status )
symbol = demangled;
uintptr_t relative_addr = (uintptr_t)pc - (uintptr_t)info.dli_fbase;
snprintf( message, sizeof(message), "0x%" PRIXPTR ":\t%s (base=0x%" PRIXPTR ", %s)\n", relative_addr, symbol, (uintptr_t)info.dli_fbase, fname );
Log(message);
}
_Unwind_Reason_Code UnwindBacktraceCallback(struct _Unwind_Context* unwind_context, void* state_voidp)
{
uintptr_t pc = _Unwind_GetIP(unwind_context);
backtrace_t *bt = (backtrace_t*)state_voidp;
if( bt->count < MAX_FRAMES )
bt->frames[bt->count++] = pc;
else
return _URC_END_OF_STACK;
return _URC_NO_REASON;
}
static void CrashHandler( int sig, siginfo_t *si, void *uc)
{
static char message[4096], symbol[256];
int len, line, logfd, i = 0;
const ucontext_t* signal_ucontext = (ucontext_t*)uc;
const mcontext_t* signal_mcontext = &(signal_ucontext->uc_mcontext);
#ifdef __aarch64__
// Doesn't work good on armv7a
static backtrace_t bt;
bt.count = 0;
_Unwind_Backtrace(UnwindBacktraceCallback, &bt);
Log(">>> crash report begin\n");
snprintf(message, sizeof(message), "Signal=%d, errno=%d, code=%d, addr=0x%" PRIXPTR "\n", sig, si->si_errno, si->si_code, (uintptr_t)si->si_addr);
Log(message);
for( int i = 0; i < bt.count; i++ )
{
printPC( (void*)bt.frames[i] );
}
#else
Log(">>> crash report begin\n");
snprintf(message, sizeof(message), "Signal=%d, errno=%d, code=%d, addr=0x%" PRIXPTR "\n", sig, si->si_errno, si->si_code, (uintptr_t)si->si_addr);
Log(message);
// Initialize unw_context and unw_cursor.
unw_context_t unw_context = {};
unw_getcontext(&unw_context);
unw_cursor_t unw_cursor = {};
unw_init_local(&unw_cursor, &unw_context);
while (unw_step(&unw_cursor) > 0) {
unw_word_t ip = 0;
unw_get_reg(&unw_cursor, UNW_REG_IP, &ip);
printPC( (void*)ip );
}
#endif
Log(">>> crash report end\n");
if (old_sa.sa_sigaction)
(*old_sa.sa_sigaction)(sig, si, uc);
else if(old_sa.sa_handler)
(*old_sa.sa_handler)(sig);
}
void InitCrashHandler()
{
struct sigaction act;
act.sa_sigaction = CrashHandler;
act.sa_flags = SA_SIGINFO | SA_ONSTACK;
sigaction(SIGSEGV, &act, &old_sa);
sigaction(SIGABRT, &act, &old_sa);
sigaction(SIGBUS, &act, &old_sa);
sigaction(SIGFPE, &act, &old_sa);
sigaction(SIGTRAP, &act, &old_sa);
}