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signals: Add thread name to unhandled signal message.

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This commit is contained in:
squidbus 2024-11-29 08:33:12 -08:00
parent db888ab8b3
commit 6d2235809f
1 changed files with 15 additions and 5 deletions
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18
src/core/signals.cpp
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@ -41,6 +41,14 @@ static LONG WINAPI SignalHandler(EXCEPTION_POINTERS* pExp) noexcept {
#else
static std::string GetThreadName() {
char name[256];
if (pthread_getname_np(pthread_self(), name, sizeof(name)) != 0) {
return "<unknown name>";
}
return std::string{name};
}
static std::string DisassembleInstruction(void* code_address) {
char buffer[256] = "<unable to decode>";
@ -71,16 +79,18 @@ static void SignalHandler(int sig, siginfo_t* info, void* raw_context) {
case SIGBUS: {
const bool is_write = Common::IsWriteError(raw_context);
if (!signals->DispatchAccessViolation(raw_context, info->si_addr)) {
UNREACHABLE_MSG("Unhandled access violation at code address {}: {} address {}",
fmt::ptr(code_address), is_write ? "Write to" : "Read from",
UNREACHABLE_MSG(
"Unhandled access violation in thread '{}' at code address {}: {} address {}",
GetThreadName(), fmt::ptr(code_address), is_write ? "Write to" : "Read from",
fmt::ptr(info->si_addr));
}
break;
}
case SIGILL:
if (!signals->DispatchIllegalInstruction(raw_context)) {
UNREACHABLE_MSG("Unhandled illegal instruction at code address {}: {}",
fmt::ptr(code_address), DisassembleInstruction(code_address));
UNREACHABLE_MSG("Unhandled illegal instruction in thread '{}' at code address {}: {}",
GetThreadName(), fmt::ptr(code_address),
DisassembleInstruction(code_address));
}
break;
case SIGUSR1: { // Sleep thread until signal is received