[PATCH] D109374: [Support] Implement getMainExecutable on Solaris

[Rainer Orth via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG08ba87fa4b94: [Support] Implement getMainExecutable on Solaris (authored by ro).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D109374/new/

https://reviews.llvm.org/D109374

Files:
  llvm/lib/Support/Unix/Path.inc


Index: llvm/lib/Support/Unix/Path.inc
===================================================================
--- llvm/lib/Support/Unix/Path.inc
+++ llvm/lib/Support/Unix/Path.inc
@@ -125,7 +125,8 @@
 
 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) ||     \
     defined(__minix) || defined(__FreeBSD_kernel__) || defined(__linux__) ||   \
-    defined(__CYGWIN__) || defined(__DragonFly__) || defined(_AIX) || defined(__GNU__)
+    defined(__CYGWIN__) || defined(__DragonFly__) || defined(_AIX) || defined(__GNU__) || \
+    (defined(__sun__) && defined(__svr4__))
 static int
 test_dir(char ret[PATH_MAX], const char *dir, const char *bin)
 {
@@ -283,6 +284,20 @@
   // Fall back to the classical detection.
   if (getprogpath(exe_path, argv0))
     return exe_path;
+#elif defined(__sun__) && defined(__svr4__)
+  char exe_path[PATH_MAX];
+  const char *aPath = "/proc/self/execname";
+  if (sys::fs::exists(aPath)) {
+    int fd = open(aPath, O_RDONLY);
+    if (fd == -1)
+      return "";
+    if (read(fd, exe_path, sizeof(exe_path)) < 0)
+      return "";
+    return exe_path;
+  }
+  // Fall back to the classical detection.
+  if (getprogpath(exe_path, argv0) != NULL)
+    return exe_path;
 #elif defined(__MVS__)
   int token = 0;
   W_PSPROC buf;


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