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Gert Wollny 246140fa1c vrend: Check whether a shader type actually exisits before uploading constants ... When changing the from a one-by-one upload to an array upload the test for the array pointer to the uniform IDs was replaced by testing the uniform array ID against -1. However, this is not enough, because when the context is allocated all is cleared to zero, and apparently the structure is re-used in different invocations of shader programs. Here, one shader might have been removed but the const field was still allocated resulting in a sigsegv. This happens e.g. by running dEQP-GLES31.functional.primitive_bounding_box.wide_points. global_state.vertex_tessellation_geometry_fragment.fbo_bbox_larger global_state.vertex_tessellation_geometry_fragment.fbo_bbox_smaller tessellation_set_per_draw.vertex_tessellation_fragment.default_framebuffer_bbox_equal tessellation_set_per_draw.vertex_tessellation_fragment.default_framebuffer_bbox_larger resulting in AddressSanitizer: SEGV on unknown address 0x00000000001c The signal is caused by a READ memory access. Hint: address points to the zero page. #0 0x7f595b9eb875 in vrend_draw_bind_const_shader src/vrend_renderer.c:3677 #1 0x7f595b9ed37f in vrend_draw_bind_objects src/vrend_renderer.c:3810 Work around this by checking whether the shader type data is allocated. Fixes: 172c9679b4 vrend/shader: handle uniforms as array Tested-by: Jakob Bornecrantz <jakob@collabora.com> Acked-by: Jakob Bornecrantz <jakob@collabora.com> Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org> Signed-off-by: Jakob Bornecrantz <jakob@collabora.com>		6 years ago
build-aux	build: include ax_gcc_func_attribute.m4	6 years ago
ci	ci: Harmonize piglit results path with dEQP result path	6 years ago
docs	docs: update some bits of GL status	8 years ago
scripts	release.sh: fix paths	9 years ago
src	vrend: Check whether a shader type actually exisits before uploading constants	6 years ago
tests	virglrenderer: enable symbol visiblity.	6 years ago
vtest	vtest: fix fencing	6 years ago
.dir-locals.el	add emacs editing/indent rules	10 years ago
COPYING	virglrenderer: add license file	10 years ago
Makefile.am	configure.ac: set ACLOCAL_AMFLAGS to include build-aux	6 years ago
autogen.sh	initial import of standalone renderer	11 years ago
configure.ac	configure.ac: manually expand PKG_CHECK_VAR	6 years ago
git.mk	build-sys: add git.mk	10 years ago
virglrenderer.pc.in	build: move include to virgl subdir	10 years ago