diff options
| author | Derek Schuff <dschuff@chromium.org> | 2012-10-01 11:20:30 -0700 |
|---|---|---|
| committer | Derek Schuff <dschuff@chromium.org> | 2012-10-01 11:20:30 -0700 |
| commit | b3423dd295c69f78bd731f1ad65ad90ce3efa36f (patch) | |
| tree | 0e872df2f0333ed1806d9e0a6906b2f5ebd58512 /lib/Support/Unix | |
| parent | a27c28b1427dc2082ab2b31efdbb25f9fde31b61 (diff) | |
| parent | 72f0976c1b91c7ba50dce4d0ad0289dc14d37f81 (diff) | |
Merge commit '72f0976c1b91c7ba50dce4d0ad0289dc14d37f81'
Conflicts:
lib/Target/ARM/ARMISelDAGToDAG.cpp
lib/Target/Mips/MipsISelLowering.cpp
lib/Target/Mips/MipsSubtarget.cpp
Diffstat (limited to 'lib/Support/Unix')
| -rw-r--r-- | lib/Support/Unix/Path.inc | 17 | ||||
| -rw-r--r-- | lib/Support/Unix/Signals.inc | 2 |
2 files changed, 14 insertions, 5 deletions
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc index f70e60d3f5..b82371a7b6 100644 --- a/lib/Support/Unix/Path.inc +++ b/lib/Support/Unix/Path.inc @@ -267,7 +267,8 @@ Path::GetCurrentDirectory() { } #if defined(__FreeBSD__) || defined (__NetBSD__) || defined(__Bitrig__) || \ - defined(__OpenBSD__) || defined(__minix) || defined(__FreeBSD_kernel__) + defined(__OpenBSD__) || defined(__minix) || defined(__FreeBSD_kernel__) || \ + defined(__linux__) || defined(__CYGWIN__) static int test_dir(char buf[PATH_MAX], char ret[PATH_MAX], const char *dir, const char *bin) @@ -345,9 +346,17 @@ Path Path::GetMainExecutable(const char *argv0, void *MainAddr) { return Path(exe_path); #elif defined(__linux__) || defined(__CYGWIN__) char exe_path[MAXPATHLEN]; - ssize_t len = readlink("/proc/self/exe", exe_path, sizeof(exe_path)); - if (len >= 0) - return Path(StringRef(exe_path, len)); + StringRef aPath("/proc/self/exe"); + if (sys::fs::exists(aPath)) { + // /proc is not always mounted under Linux (chroot for example). + ssize_t len = readlink(aPath.str().c_str(), exe_path, sizeof(exe_path)); + if (len >= 0) + return Path(StringRef(exe_path, len)); + } else { + // Fall back to the classical detection. + if (getprogpath(exe_path, argv0) != NULL) + return Path(exe_path); + } #elif defined(HAVE_DLFCN_H) // Use dladdr to get executable path if available. Dl_info DLInfo; diff --git a/lib/Support/Unix/Signals.inc b/lib/Support/Unix/Signals.inc index e05e81acaf..6d874ea0d0 100644 --- a/lib/Support/Unix/Signals.inc +++ b/lib/Support/Unix/Signals.inc @@ -249,7 +249,7 @@ void llvm::sys::AddSignalHandler(void (*FnPtr)(void *), void *Cookie) { // On glibc systems we have the 'backtrace' function, which works nicely, but // doesn't demangle symbols. static void PrintStackTrace(void *) { -#if defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACE) +#if defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES) static void* StackTrace[256]; // Use backtrace() to output a backtrace on Linux systems with glibc. int depth = backtrace(StackTrace, |