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Description
Problem Description
Hi! I am in need of some hints.
I am cross-compiling ROCm and encountered trouble with the comgr build not locating the bitcode files. I have all the files installed.
root@fitting8:/fs/root/context/host/amd-comgr-rocm-6.2.4/crossroot# find -name bitcode
./opt/rocm/amdgcn/bitcode
root@fitting8:/fs/root/context/host/amd-comgr-rocm-6.2.4/crossroot# ls ./opt/rocm/amdgcn/bitcode | wc -l
62
But then building it looks for the files in the root@fitting8:/fs/root/context/host/amd-comgr-rocm-6.2.4/crossroot/amdgcn/bitcode skipping the /opt/rocm/ prefix.
I suppose that bitcode files path is set in comgr/cmake/DeviceLibs.cmake
get_target_property(bc_lib_path ${AMDGCN_LIB_TARGET} LOCATION)
if(NOT bc_lib_path)
get_target_property(bc_lib_path ${AMDGCN_LIB_TARGET} OUTPUT_NAME)
endif()
if(NOT bc_lib_path)
message(FATAL_ERROR "Could not find path to bitcode library")
endif()
if(HOST_BIN_PATH)
set(BC2H_COMMAND "${HOST_BIN_PATH}/bc2h")
else()
set(BC2H_COMMAND "${CMAKE_CURRENT_BINARY_DIR}/bc2h")
endif()
add_custom_command(OUTPUT ${INC_DIR}/${header}
COMMAND ${BC2H_COMMAND} ${bc_lib_path}
${INC_DIR}/${header}
"${AMDGCN_LIB_TARGET}_lib"
DEPENDS bc2h ${AMDGCN_LIB_TARGET} ${bc_lib_path}
COMMENT "Generating ${AMDGCN_LIB_TARGET}.inc"
)
set_property(DIRECTORY APPEND PROPERTY
ADDITIONAL_MAKE_CLEAN_FILES ${INC_DIR}/${header})
Is there a way to add this /opt/rocm prefix for a bc files location?
The cmake config is:
cmake \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_PREFIX_PATH="$LLVM_PROJECT;$DEVICE_LIBS" \
$(ause_notenable host "-DHOST_BIN_PATH=/opt/rocm/bin") \
$(ause_notenable host "-DHOST_LLVM_BIN_PATH=/opt/rocm/bin") \
-DCMAKE_INSTALL_PREFIX=/opt/rocm
I am building 6.2.4 version, cause we only have llvm18 in our work distro. If it was fixed in the newer version commit link would be much appreciated.
Operating System
CPU
GPU
ROCm Version
ROCm 6.2.4
ROCm Component
llvm-project
Steps to Reproduce
No response
(Optional for Linux users) Output of /opt/rocm/bin/rocminfo --support
No response
Additional Information
No response