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Improve exception logging on posix

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Fix compile errors
This commit is contained in:
Exzap 2023-04-06 06:08:14 +02:00
parent 3428e4dae6
commit 072c18a6e3
8 changed files with 225 additions and 159 deletions
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57
src/Common/ExceptionHandler/ExceptionHandler_posix.cpp
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@ -4,13 +4,14 @@
#include <string>
#include "config/CemuConfig.h"
#include "util/helpers/StringHelpers.h"
#include "ExceptionHandler.h"
#if BOOST_OS_LINUX
#include "ELFSymbolTable.h"
#endif
#if BOOST_OS_LINUX
void demangleAndPrintBacktrace(char** backtrace, size_t size)
void DemangleAndPrintBacktrace(char** backtrace, size_t size)
{
ELFSymbolTable symTable;
for (char** i = backtrace; i < backtrace + size; i++)
@ -25,7 +26,7 @@ void demangleAndPrintBacktrace(char** backtrace, size_t size)
offsetPlus < parenthesesOpen || offsetPlus > parenthesesClose)
{
// fall back to default string
std::cerr << traceLine << std::endl;
CrashLog_WriteLine(traceLine);
continue;
}
@ -38,29 +39,32 @@ void demangleAndPrintBacktrace(char** backtrace, size_t size)
symbolName = symTable.OffsetToSymbol(symbolOffset, newOffset);
}
std::cerr << traceLine.substr(0, parenthesesOpen+1);
CrashLog_WriteLine(traceLine.substr(0, parenthesesOpen+1), false);
std::cerr << boost::core::demangle(symbolName.empty() ? "" : symbolName.data());
CrashLog_WriteLine(boost::core::demangle(symbolName.empty() ? "" : symbolName.data()), false);
// print relative or existing symbol offset.
std::cerr << '+';
CrashLog_WriteLine("+", false);
if (newOffset != -1)
{
std::cerr << std::hex << newOffset;
std::cerr << traceLine.substr(parenthesesClose) << std::endl;
CrashLog_WriteLine(fmt::format("0x{:x}", newOffset), false);
CrashLog_WriteLine(traceLine.substr(parenthesesClose));
}
else
{
std::cerr << traceLine.substr(offsetPlus+1) << std::endl;
CrashLog_WriteLine(traceLine.substr(offsetPlus+1));
}
}
}
#endif
// handle signals that would dump core, print stacktrace and then dump depending on config
void handlerDumpingSignal(int sig)
void handlerDumpingSignal(int sig, siginfo_t *info, void *context)
{
char* sigName = strsignal(sig);
if(!CrashLog_Create())
return; // give up if crashlog was already created
char* sigName = strsignal(sig);
if (sigName)
{
printf("%s!\n", sigName);
@ -71,31 +75,42 @@ void handlerDumpingSignal(int sig)
printf("Unknown core dumping signal!\n");
}
void *array[128];
void* backtraceArray[128];
size_t size;
// get void*'s for all entries on the stack
size = backtrace(array, 128);
size = backtrace(backtraceArray, 128);
// replace the deepest entry with the actual crash address
#if defined(ARCH_X86_64) && BOOST_OS_LINUX > 0
ucontext_t *uc = (ucontext_t *)context;
backtraceArray[0] = (void *)uc->uc_mcontext.gregs[REG_RIP];
#endif
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
CrashLog_WriteLine(fmt::format("Error: signal {}:", sig));
#if BOOST_OS_LINUX
char** symbol_trace = backtrace_symbols(array, size);
char** symbol_trace = backtrace_symbols(backtraceArray, size);
if (symbol_trace)
{
demangleAndPrintBacktrace(symbol_trace, size);
DemangleAndPrintBacktrace(symbol_trace, size);
free(symbol_trace);
}
else
{
std::cerr << "Failed to read backtrace" << std::endl;
CrashLog_WriteLine("Failed to read backtrace");
}
#else
backtrace_symbols_fd(array, size, STDERR_FILENO);
backtrace_symbols_fd(backtraceArray, size, STDERR_FILENO);
#endif
std::cerr << fmt::format("\nStacktrace and additional info written to:") << std::endl;
std::cerr << cemuLog_GetLogFilePath().generic_string() << std::endl;
CrashLog_SetOutputChannels(false, true);
ExceptionHandler_LogGeneralInfo();
CrashLog_SetOutputChannels(true, true);
if (GetConfig().crash_dump == CrashDump::Enabled)
{
// reset signal handler to default and re-raise signal to dump core
@ -119,7 +134,7 @@ void handler_SIGINT(int sig)
_Exit(0);
}
void ExceptionHandler_init()
void ExceptionHandler_Init()
{
struct sigaction action;
action.sa_flags = 0;
@ -128,7 +143,9 @@ void ExceptionHandler_init()
action.sa_handler = handler_SIGINT;
sigaction(SIGINT, &action, nullptr);
action.sa_handler = handlerDumpingSignal;
action.sa_flags = SA_SIGINFO;
action.sa_handler = nullptr;
action.sa_sigaction = handlerDumpingSignal;
sigaction(SIGABRT, &action, nullptr);
sigaction(SIGBUS, &action, nullptr);
sigaction(SIGFPE, &action, nullptr);