asgardius/virtualx-engine
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Make PIE relocation detection glibc-only

Browse source 
Musl doesn't compile with it, and by looking online I think that this is
a glibc only thing.
This commit is contained in:
Riteo 2023-01-21 16:14:33 +01:00
parent 621e32971e
commit 2a6ce37910
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
platform/linuxbsd/crash_handler_linuxbsd.cpp
View file

@ -81,7 +81,13 @@ static void handle_crash(int sig) {
print_error(vformat("Dumping the backtrace. %s", msg)); print_error(vformat("Dumping the backtrace. %s", msg));
char **strings = backtrace_symbols(bt_buffer, size); char **strings = backtrace_symbols(bt_buffer, size);
// PIE executable relocation, zero for non-PIE executables // PIE executable relocation, zero for non-PIE executables
#ifdef __GLIBC__
// This is a glibc only thing apparently.
uintptr_t relocation = _r_debug.r_map->l_addr; uintptr_t relocation = _r_debug.r_map->l_addr;
#else
// Non glibc systems apparently don't give PIE relocation info.
uintptr_t relocation = 0;
#endif //__GLIBC__
if (strings) { if (strings) {
List<String> args; List<String> args;
for (size_t i = 0; i < size; i++) { for (size_t i = 0; i < size; i++) {