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AK: Expose dump_backtrace() publicly for debugging purposes

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At this point, I've repeatedly felt the desire to be able to log
stacktraces to be able to see more easily what kind of call-sites exist
for a given piece of code. So this commit exposes `dump_backtrace()` in
the header so it can be used for this purpose.
This commit is contained in:
InvalidUsernameException 2025-05-04 17:33:39 +02:00 • committed by Tim Flynn
parent 0c2db2ab35
commit 1d63398cbd
Notes: github-actions[bot] 2025-05-06 14:04:54 +00:00
2 changed files with 9 additions and 7 deletions
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15
AK/Assertions.cpp
View file

@ -33,18 +33,17 @@
# define ERRORLN warnln
#endif
extern "C" {
#if defined(AK_HAS_STD_STACKTRACE)
namespace {
ALWAYS_INLINE void dump_backtrace()
void dump_backtrace()
{
// We assume the stacktrace implementation demangles symbols, as does microsoft/STL
PRINT_ERROR(std::to_string(std::stacktrace::current(2)).c_str());
PRINT_ERROR("\n");
}
}
#elif defined(AK_HAS_BACKTRACE_HEADER)
namespace {
ALWAYS_INLINE void dump_backtrace()
void dump_backtrace()
{
// Grab symbols and dso name for up to 256 frames
void* trace[256] = {};
@ -89,11 +88,13 @@ ALWAYS_INLINE void dump_backtrace()
}
free(syms);
}
#else
void dump_backtrace()
{
PRINT_ERROR("dump_backtrace() is not supported with the current compilation options.\n");
}
#endif
extern "C" {
bool ak_colorize_output(void)
{
#if defined(AK_OS_SERENITY) || defined(AK_OS_ANDROID)

1
AK/Assertions.h
View file

@ -6,6 +6,7 @@
#pragma once
extern "C" void dump_backtrace();
extern "C" bool ak_colorize_output(void);
extern "C" __attribute__((noreturn)) void ak_trap(void);