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android: amd/common: fix LLVMInitializeAMDGPU* functions declaration

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LLVMInitializeAMDGPU* functions need to be explicitly declared
and mesa expects them via <llvm-c/Target.h> header,
but LLVM needs to be instructed to invoke its own LLVM_TARGET(AMDGPU) macro,
or the functions will not be available.

A new llvm cflag (-DFORCE_BUILD_AMDGPU) serves this purpose,
the same mechanism is used also by other llvm targets e.g. FORCE_BUILD_ARM

A necessary prerequisite is to have AMDGPU target handled accordingly
in llvm config files i.e. {Target,AsmParser,AsmPrinter}.def
for llvm device build includes.

This avoids the following building errors:

external/mesa/src/amd/common/ac_llvm_util.c:43:2: error: implicit declaration of function 'LLVMInitializeAMDGPUTargetInfo' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        LLVMInitializeAMDGPUTargetInfo();
        ^
external/mesa/src/amd/common/ac_llvm_util.c:44:2: error: implicit declaration of function 'LLVMInitializeAMDGPUTarget' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        LLVMInitializeAMDGPUTarget();
        ^
external/mesa/src/amd/common/ac_llvm_util.c:45:2: error: implicit declaration of function 'LLVMInitializeAMDGPUTargetMC' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        LLVMInitializeAMDGPUTargetMC();
        ^
external/mesa/src/amd/common/ac_llvm_util.c:46:2: error: implicit declaration of function 'LLVMInitializeAMDGPUAsmPrinter' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        LLVMInitializeAMDGPUAsmPrinter();
        ^
Acked-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
This commit is contained in:
Mauro Rossi 2017-01-10 01:53:02 +01:00 • committed by Emil Velikov
parent db3aaa3137
commit f93f7cae14
1 changed files with 2 additions and 0 deletions
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2
src/amd/Android.common.mk
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@ -30,6 +30,8 @@ LOCAL_MODULE := libmesa_amd_common
LOCAL_SRC_FILES := $(AMD_COMPILER_FILES)
LOCAL_CFLAGS += -DFORCE_BUILD_AMDGPU # instructs LLVM to declare LLVMInitializeAMDGPU* functions
LOCAL_C_INCLUDES := \
$(MESA_TOP)/include \
$(MESA_TOP)/src \