[Mesa-dev] [PATCH v2 1/4] util: Get program name based on path when possible

[Nicholas Kazlauskas]

Some programs start with the path and command line arguments in
argv[0] (program_invocation_name). Chromium is an example of
an application using mesa that does this.

This tries to query the real path for the symbolic link /proc/self/exe
to find the program name instead.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
---
 src/util/u_process.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/util/u_process.c b/src/util/u_process.c
index 5e5927678d..4cae6f6dee 100644
--- a/src/util/u_process.c
+++ b/src/util/u_process.c
@@ -41,8 +41,22 @@ static const char *
 __getProgramName()
 {
    char * arg = strrchr(program_invocation_name, '/');
-   if (arg)
+   if (arg) {
+      /* This is likely part of a Linux file path.
+       * Try to get the program name without any command line arguments. */
+      static char * full_path;
+
+      if (!full_path)
+         full_path = realpath("/proc/self/exe", NULL);
+
+      if (full_path) {
+         char * res = strrchr(full_path, '/');
+         if (res)
+            return res+1;
+      }
+
       return arg+1;
+   }
 
    /* If there was no '/' at all we likely have a windows like path from
     * a wine application.
-- 
2.19.0