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| author | Chris Lattner <sabre@nondot.org> | 2008-03-13 05:22:05 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-03-13 05:22:05 +0000 |
| commit | 3bdfa04cbe42106d2dc55d0dd980ba9e52a3bd84 (patch) | |
| tree | 84c422d293b5696819f38a885463f3559a1fe574 | |
| parent | a17fa28ac2a2d1fca5ca208f1e9fb8e4f3be3d73 (diff) | |
| download | external_llvm-3bdfa04cbe42106d2dc55d0dd980ba9e52a3bd84.zip external_llvm-3bdfa04cbe42106d2dc55d0dd980ba9e52a3bd84.tar.gz external_llvm-3bdfa04cbe42106d2dc55d0dd980ba9e52a3bd84.tar.bz2 | |
Fix Path::GetMainExecutable on cygwin, patch by Sam Bishop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48328 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/System/Unix/Path.inc | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/System/Unix/Path.inc b/lib/System/Unix/Path.inc index 8e76b54..e112132 100644 --- a/lib/System/Unix/Path.inc +++ b/lib/System/Unix/Path.inc @@ -251,8 +251,17 @@ Path::GetCurrentDirectory() { /// GetMainExecutable - Return the path to the main executable, given the /// value of argv[0] from program startup. Path Path::GetMainExecutable(const char *argv0, void *MainAddr) { +#if defined(__CYGWIN__) + char exe_link[64]; + snprintf(exe_link, sizeof(exe_link), "/proc/%d/exe", getpid()); + char exe_path[MAXPATHLEN]; + ssize_t len = readlink(exe_link, exe_path, sizeof(exe_path)); + if (len > 0 && len < MAXPATHLEN - 1) { + exe_path[len] = '\0'; + return Path(std::string(exe_path)); + } +#elif defined(HAVE_DLFCN_H) // Use dladdr to get executable path if available. -#ifdef HAVE_DLFCN_H Dl_info DLInfo; int err = dladdr(MainAddr, &DLInfo); if (err != 0) |