From 824197efd526dec5623b37f2c6078c212c81eb2b Mon Sep 17 00:00:00 2001 From: Aaron Watry Date: Wed, 2 Jul 2014 16:27:31 -0500 Subject: [PATCH] radeon/llvm: Allocate space for kernel metadata operands Previously, we were assuming that kernel metadata nodes only had 1 operand. Kernels which have attributes can have more than 1, e.g.: !0 = metadata !{void (i32 addrspace(1)*)* @testKernel, metadata !1} !1 = metadata !{metadata !"work_group_size_hint", i32 4, i32 1, i32 1} Attempting to get the kernel without the correct number of attributes led to memory corruption and luxrays crashing out. Fixes the cl/program/execute/attributes.cl piglit test. Signed-off-by: Aaron Watry Reviewed-by: Tom Stellard Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76223 CC: "10.2" --- src/gallium/drivers/radeon/radeon_llvm_util.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/gallium/drivers/radeon/radeon_llvm_util.c b/src/gallium/drivers/radeon/radeon_llvm_util.c index 2ace91f..ec11559 100644 --- a/src/gallium/drivers/radeon/radeon_llvm_util.c +++ b/src/gallium/drivers/radeon/radeon_llvm_util.c @@ -100,13 +100,17 @@ LLVMModuleRef radeon_llvm_get_kernel_module(LLVMContextRef ctx, unsigned index, kernel_metadata = MALLOC(num_kernels * sizeof(LLVMValueRef)); LLVMGetNamedMetadataOperands(mod, "opencl.kernels", kernel_metadata); for (i = 0; i < num_kernels; i++) { - LLVMValueRef kernel_signature, kernel_function; + LLVMValueRef kernel_signature, *kernel_function; + unsigned num_kernel_md_operands; if (i == index) { continue; } kernel_signature = kernel_metadata[i]; - LLVMGetMDNodeOperands(kernel_signature, &kernel_function); - LLVMDeleteFunction(kernel_function); + num_kernel_md_operands = LLVMGetMDNodeNumOperands(kernel_signature); + kernel_function = MALLOC(num_kernel_md_operands * sizeof (LLVMValueRef)); + LLVMGetMDNodeOperands(kernel_signature, kernel_function); + LLVMDeleteFunction(*kernel_function); + FREE(kernel_function); } FREE(kernel_metadata); radeon_llvm_optimize(mod); -- 2.7.4