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#include "common.h"
#include <filesystem>
#include <sys/stat.h>
#ifdef __APPLE__
# include <mach-o/dyld.h>
#endif
#ifdef __FreeBSD__
# include <sys/sysctl.h>
#endif
namespace mold {
// Returns the path of the mold executable itself
std::string get_self_path() {
#if __APPLE__ || _WIN32
fprintf(stderr, "mold: get_self_path is not supported");
exit(1);
#elif __FreeBSD__
// /proc may not be mounted on FreeBSD. The proper way to get the
// current executable's path is to use sysctl(2).
int mib[4];
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = KERN_PROC_PATHNAME;
mib[3] = -1;
size_t size;
sysctl(mib, 4, NULL, &size, NULL, 0);
std::string path;
path.resize(size);
sysctl(mib, 4, path.data(), &size, NULL, 0);
return path;
#else
return std::filesystem::read_symlink("/proc/self/exe").string();
#endif
}
} // namespace mold
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