Module: Mesa
Branch: staging/20.1
Commit: 521ba8b2a9b066eba3b2c22194f8e497eb8344da
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=521ba8b2a9b066eba3b2c22194f8e497eb8344da

Author: Jonathan Gray <[email protected]>
Date:   Thu Nov  1 13:16:13 2018 +1100

util/anon_file: add OpenBSD shm_mkstemp() path

memfd_create() is a linux syscall replace the use of it with
shm_mkstemp() on OpenBSD.

unconditionally include stdlib.h for mkstemp()/mkostemp()

Fixes: c0376a12341 ("util: add anon_file.h for all memfd/temp file usage")
Signed-off-by: Jonathan Gray <[email protected]>
Reviewed-by: Eric Engestrom <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5630>
(cherry picked from commit 6e9c0661f8538cdabe7d7de73af11b4165f51f93)

---

 .pick_status.json    |  2 +-
 src/util/anon_file.c | 10 +++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/.pick_status.json b/.pick_status.json
index 56804aeeb01..1aaf2c3ffab 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -814,7 +814,7 @@
         "description": "util/anon_file: add OpenBSD shm_mkstemp() path",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "master_sha": null,
         "because_sha": "c0376a123418df0050dc45d3e1e84f6b29a6a1f3"
     },
diff --git a/src/util/anon_file.c b/src/util/anon_file.c
index bd415adb647..6c8885707f4 100644
--- a/src/util/anon_file.c
+++ b/src/util/anon_file.c
@@ -33,16 +33,15 @@
 #include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <stdlib.h>
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
 #include <sys/mman.h>
 #elif defined(HAVE_MEMFD_CREATE) || defined(ANDROID)
 #include <sys/syscall.h>
 #include <linux/memfd.h>
-#include <stdlib.h>
 #else
 #include <stdio.h>
-#include <stdlib.h>
 #endif
 
 #if !(defined(__FreeBSD__) || defined(HAVE_MEMFD_CREATE) || 
defined(HAVE_MKOSTEMP) || defined(ANDROID))
@@ -119,6 +118,11 @@ os_create_anonymous_file(off_t size, const char 
*debug_name)
 #ifdef __FreeBSD__
    (void*)debug_name;
    fd = shm_open(SHM_ANON, O_CREAT | O_RDWR | O_CLOEXEC, 0600);
+#elif defined(__OpenBSD__)
+   char template[] = "/tmp/mesa-XXXXXXXXXX";
+   fd = shm_mkstemp(template);
+   if (fd != -1)
+      shm_unlink(template);
 #elif defined(HAVE_MEMFD_CREATE) || defined(ANDROID)
    if (!debug_name)
       debug_name = "mesa-shared";

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