X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Futil%2Fu_process.c;h=68fda93a53bb22515fb5c04f64d85534d8640df7;hb=a1c2bd6ce8981b34c0cf9333699b0ce75be6cb55;hp=cbccf48ed016ce6bed794240126d3fcb4142471a;hpb=c9b86cf52692f1d76314dce345080af8ce786792;p=mesa.git

diff --git a/src/util/u_process.c b/src/util/u_process.c
index cbccf48ed01..68fda93a53b 100644
--- a/src/util/u_process.c
+++ b/src/util/u_process.c
@@ -26,13 +26,34 @@
  */
 
 #include "u_process.h"
+#include "detect_os.h"
+#include "macros.h"
 #include <string.h>
 #include <errno.h>
 #include <stdlib.h>
 
 #undef GET_PROGRAM_NAME
 
+#if DETECT_OS_WINDOWS
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+
+#if DETECT_OS_APPLE
+#include <mach-o/dyld.h>
+#endif
+
 #if defined(__linux__) && defined(HAVE_PROGRAM_INVOCATION_NAME)
+
+static char *path = NULL;
+
+static void __freeProgramPath()
+{
+   free(path);
+   path = NULL;
+}
+
 static const char *
 __getProgramName()
 {
@@ -45,14 +66,10 @@ __getProgramName()
        * Strip these arguments out by using the realpath only if it was
        * a prefix of the invocation name.
        */
-      static char *path;
-
-      if (!path)
-         /* Note: realpath() allocates memory that we will keep around for
-          * the lifetime of the app, and then leak as the app closes.
-          * FIXME: we should find a way to clean this properly
-          */
+      if (!path) {
          path = realpath("/proc/self/exe", NULL);
+         atexit(__freeProgramPath);
+      }
 
       if (path && strncmp(path, program_invocation_name, strlen(path)) == 0) {
          /* This shouldn't be null because path is a a prefix,
@@ -82,8 +99,11 @@ __getProgramName()
 #    if (__FreeBSD_version >= 440000)
 #        define GET_PROGRAM_NAME() getprogname()
 #    endif
-#elif defined(__NetBSD__) && defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 106000100)
-#    define GET_PROGRAM_NAME() getprogname()
+#elif defined(__NetBSD__)
+#    include <sys/param.h>
+#    if defined(__NetBSD_Version__) && (__NetBSD_Version__ >= 106000100)
+#        define GET_PROGRAM_NAME() getprogname()
+#    endif
 #elif defined(__DragonFly__)
 #    define GET_PROGRAM_NAME() getprogname()
 #elif defined(__APPLE__)
@@ -118,7 +138,7 @@ __getProgramName()
 #endif
 
 #if !defined(GET_PROGRAM_NAME)
-#    if defined(__OpenBSD__) || defined(NetBSD) || defined(__UCLIBC__) || defined(ANDROID)
+#    if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__UCLIBC__) || defined(ANDROID)
 /* This is a hack. It's said to work on OpenBSD, NetBSD and GNU.
  * Rogelio M.Serrano Jr. reported it's also working with UCLIBC. It's
  * used as a last resort, if there is no documented facility available. */
@@ -144,3 +164,35 @@ util_get_process_name(void)
 {
    return GET_PROGRAM_NAME();
 }
+
+size_t
+util_get_process_exec_path(char* process_path, size_t len)
+{
+#if DETECT_OS_WINDOWS
+   return GetModuleFileNameA(NULL, process_path, len);
+#elif DETECT_OS_APPLE
+   uint32_t bufSize = len;
+   int result = _NSGetExecutablePath(process_path, &bufSize);
+
+   return (result == 0) ? strlen(process_path) : 0;
+#elif DETECT_OS_UNIX
+   ssize_t r;
+
+   if ((r = readlink("/proc/self/exe", process_path, len)) > 0)
+      goto success;
+   if ((r = readlink("/proc/curproc/exe", process_path, len)) > 0)
+      goto success;
+   if ((r = readlink("/proc/curproc/file", process_path, len)) > 0)
+      goto success;
+
+    return 0;
+success:
+   if (r == len)
+      return 0;
+
+    process_path[r] = '\0';
+    return r;
+
+#endif
+   return 0;
+}