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host/backtrace: do not use when glibc not used

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compat eg. with musl
This commit is contained in:
Martin Pulec
2025-04-14 09:48:14 +02:00
parent c5628a5a38
commit 222499a246
1 changed files with 21 additions and 11 deletions
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32
src/host.cpp
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@@ -46,7 +46,7 @@
#ifdef _WIN32
#include <io.h>
#else
#elif defined(__GLIBC__)
#include <execinfo.h>
#include <fcntl.h>
#endif // !defined _WIN32
@@ -196,6 +196,7 @@ struct init_data {
list <void *> opened_libs;
};
static void print_backtrace();
static void print_param_doc(void);
static bool validate_param(const char *param);
@@ -286,10 +287,7 @@ static int x11_error_handler(Display *d, XErrorEvent *e) {
UNUSED(d);
log_msg(LOG_LEVEL_ERROR, "X11 error - code: %d, serial: %d, error: %d, request: %d, minor: %d\n",
e->error_code, e->serial, e->error_code, e->request_code, e->minor_code);
fprintf(stderr, "Backtrace:\n");
array<void *, 256> addresses{};
int num_symbols = backtrace(addresses.data(), addresses.size());
backtrace_symbols_fd(addresses.data(), num_symbols, 2);
print_backtrace();
return 0;
}
#endif
@@ -299,7 +297,7 @@ static int x11_error_handler(Display *d, XErrorEvent *e) {
*/
static void load_libgcc()
{
#ifndef _WIN32
#if !defined(_WIN32) && defined(__GLIBC__)
array<void *, 1> addresses{};
backtrace(addresses.data(), addresses.size());
#endif
@@ -1202,12 +1200,11 @@ bool running_in_debugger(){
return false;
}
#if defined(__GLIBC__)
/// print stacktrace with backtrace_symbols_fd() (glibc or macOS)
static void
print_backtrace()
print_stacktrace_glibc()
{
#ifdef _WIN32
print_stacktrace_win();
#else
// print to a temporary file to avoid interleaving from multiple
// threads
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 27)
@@ -1248,7 +1245,20 @@ print_backtrace()
}
}
close(fd);
#endif // defined _WIN32
}
#endif // defined(__GLIBC__)
static void
print_backtrace()
{
#ifdef _WIN32
print_stacktrace_win();
#elif defined(__GLIBC__)
print_stacktrace_glibc();
#else
const char *msg = "Stacktrace printout not supported!\n";
write(STDERR_FILENO, msg, strlen(msg));
#endif
}
void crash_signal_handler(int sig)