darwin: Write errors in choosing the pixel format to the crash log

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>

1 files changed, 16 insertions, 2 deletions

diff --git a/src/glx/apple/apple_visual.c b/src/glx/apple/apple_visual.c
index c6ede51..951b213 100644
--- a/src/glx/apple/apple_visual.c
+++ b/src/glx/apple/apple_visual.c
@@ -63,6 +63,16 @@ enum
    MAX_ATTR = 60
 };
 
+static char __crashreporter_info_buff__[4096] = { 0 };
+static const char *__crashreporter_info__ __attribute__((__used__)) =
+    &__crashreporter_info_buff__[0];
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
+// This is actually a toolchain requirement, but I'm not sure the correct check,
+// but it should be fine to just only include it for Leopard and later.  This line
+// just tells the linker to never strip this symbol (such as for space optimization)
+__asm__ (".desc ___crashreporter_info__, 0x10");
+#endif
+
 void
 apple_visual_create_pfobj(CGLPixelFormatObj * pfobj, const struct glx_config * mode,
                           bool * double_buffered, bool * uses_stereo,
@@ -164,12 +174,16 @@ apple_visual_create_pfobj(CGLPixelFormatObj * pfobj, const struct glx_config * m
    error = apple_cgl.choose_pixel_format(attr, pfobj, &vsref);
 
    if (error) {
-      fprintf(stderr, "error: %s\n", apple_cgl.error_string(error));
+      snprintf(__crashreporter_info_buff__, sizeof(__crashreporter_info_buff__),
+               "CGLChoosePixelFormat error: %s\n", apple_cgl.error_string(error));
+      fprintf(stderr, "%s", __crashreporter_info_buff__);
       abort();
    }
 
    if (!*pfobj) {
-      fprintf(stderr, "No matching pixelformats found, perhaps try using LIBGL_ALLOW_SOFTWARE\n");
+      snprintf(__crashreporter_info_buff__, sizeof(__crashreporter_info_buff__),
+               "No matching pixelformats found, perhaps try using LIBGL_ALLOW_SOFTWARE\n");
+      fprintf(stderr, "%s", __crashreporter_info_buff__);
       abort();
    }
 }