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Commit missing comment edit and use correct cast to fix std::min overload 

llvm-svn: 345105
This commit is contained in:
Reid Kleckner 2018-10-23 23:44:44 +00:00
parent 1500effacd
commit 5fa1e35bcc
1 changed files with 5 additions and 5 deletions
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10
llvm/lib/Support/Unix/Path.inc
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@ -186,13 +186,13 @@ std::string getMainExecutable(const char *argv0, void *MainAddr) {
// Null terminate the string for realpath. readlink never null
// terminates its output.
len = std::min(len, long(sizeof(exe_path) - 1));
len = std::min(len, ssize_t(sizeof(exe_path) - 1));
exe_path[len] = '\0';
// At least on GNU/Hurd, /proc/self/exe is a symlink to the path that
// was used to start the program, and not the eventual binary file.
// We thus needs to run realpath over it to get the actual place
// where llvm was installed.
// On Linux, /proc/self/exe always looks through symlinks. However, on
// GNU/Hurd, /proc/self/exe is a symlink to the path that was used to start
// the program, and not the eventual binary file. Therefore, call realpath
// so this behaves the same on all platforms.
#if _POSIX_VERSION >= 200112 || defined(__GLIBC__)
char *real_path = realpath(exe_path, NULL);
std::string ret = std::string(real_path);