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gnu: libepoxy: Add patch to avoid segfault when GL support is missing.

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* gnu/packages/patches/libepoxy-gl-null-checks.patch: New file.
* gnu/packages/gl.scm (libepoxy)[source]: Add it.
* gnu/local.mk (dist_patch_DATA): Add it.
This commit is contained in:
Ludovic Courtès 2016-12-09 18:09:43 +01:00
parent d99ee3d923
commit 13b5f44b47
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GPG key ID: 090B11993D9AEBB5
3 changed files with 57 additions and 1 deletions
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1
gnu/local.mk
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@ -656,6 +656,7 @@ dist_patch_DATA = \
%D%/packages/patches/libcanberra-sound-theme-freedesktop.patch \
%D%/packages/patches/libcmis-fix-test-onedrive.patch \
%D%/packages/patches/libdrm-symbol-check.patch \
%D%/packages/patches/libepoxy-gl-null-checks.patch \
%D%/packages/patches/libevent-dns-tests.patch \
%D%/packages/patches/libextractor-ffmpeg-3.patch \
%D%/packages/patches/libjxr-fix-function-signature.patch \

3
gnu/packages/gl.scm
View file

@ -462,7 +462,8 @@ (define-public libepoxy
(file-name (string-append name "-" version ".tar.gz"))
(sha256
(base32
"1d1brhwfmlzgnphmdwlvn5wbcrxsdyzf1qfcf8nb89xqzznxs037"))))
"1d1brhwfmlzgnphmdwlvn5wbcrxsdyzf1qfcf8nb89xqzznxs037"))
(patches (search-patches "libepoxy-gl-null-checks.patch"))))
(arguments
`(#:phases
(modify-phases %standard-phases

54
gnu/packages/patches/libepoxy-gl-null-checks.patch Normal file
View file

@ -0,0 +1,54 @@
This patch from <https://bugzilla.redhat.com/show_bug.cgi?id=1395366> adds NULL
checks to avoid crashes when GL support is missing, as is the case when running
Xvfb.
Upstream issue: <https://github.com/anholt/libepoxy/issues/72>.
diff -ur libepoxy-1.3.1/src/dispatch_common.c libepoxy-1.3.1/src/dispatch_common.c
--- libepoxy-1.3.1/src/dispatch_common.c 2015-07-15 19:46:36.000000000 -0400
+++ libepoxy-1.3.1/src/dispatch_common.c 2016-11-16 09:03:52.809066247 -0500
@@ -348,6 +348,8 @@
epoxy_extension_in_string(const char *extension_list, const char *ext)
{
const char *ptr = extension_list;
+ if (! ptr) return false;
+ if (! ext) return false;
int len = strlen(ext);
/* Make sure that don't just find an extension with our name as a prefix. */
@@ -380,6 +382,7 @@
for (i = 0; i < num_extensions; i++) {
const char *gl_ext = (const char *)glGetStringi(GL_EXTENSIONS, i);
+ if (! gl_ext) return false;
if (strcmp(ext, gl_ext) == 0)
return true;
}
diff -ur libepoxy-1.3.1/src/dispatch_egl.c libepoxy-1.3.1/src/dispatch_egl.c
--- libepoxy-1.3.1/src/dispatch_egl.c 2015-07-15 19:46:36.000000000 -0400
+++ libepoxy-1.3.1/src/dispatch_egl.c 2016-11-16 08:40:34.069358709 -0500
@@ -46,6 +46,7 @@
int ret;
version_string = eglQueryString(dpy, EGL_VERSION);
+ if (! version_string) return 0;
ret = sscanf(version_string, "%d.%d", &major, &minor);
assert(ret == 2);
return major * 10 + minor;
diff -ur libepoxy-1.3.1/src/dispatch_glx.c libepoxy-1.3.1/src/dispatch_glx.c
--- libepoxy-1.3.1/src/dispatch_glx.c 2015-07-15 19:46:36.000000000 -0400
+++ libepoxy-1.3.1/src/dispatch_glx.c 2016-11-16 08:41:03.065730370 -0500
@@ -57,11 +57,13 @@
int ret;
version_string = glXQueryServerString(dpy, screen, GLX_VERSION);
+ if (! version_string) return 0;
ret = sscanf(version_string, "%d.%d", &server_major, &server_minor);
assert(ret == 2);
server = server_major * 10 + server_minor;
version_string = glXGetClientString(dpy, GLX_VERSION);
+ if (! version_string) return 0;
ret = sscanf(version_string, "%d.%d", &client_major, &client_minor);
assert(ret == 2);
client = client_major * 10 + client_minor;