shylie/llvm-project
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[CMake][libc] Support cross-compiling libc-hdrgen

Browse Source 
This is useful when cross-compiling libc to another target in which
case we first need to compile libc-hdrgen for host. We rely on the
existing LLVM CMake infrastructure for that.

Differential Revision: https://reviews.llvm.org/D95205
This commit is contained in:
Petr Hosek 2021-01-21 22:55:12 -08:00
parent c4819eec1a
commit 1daaa6432e
4 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libc/CMakeLists.txt
View File

@ -40,7 +40,7 @@ else()
--print-resource-dir not supported by host compiler")
endif()
option(LLVM_LIBC_ENABLE_LINTING "Enables linting of libc source files" ON)
option(LLVM_LIBC_ENABLE_LINTING "Enables linting of libc source files" OFF)
if(LLVM_LIBC_ENABLE_LINTING)
if("clang-tools-extra" IN_LIST LLVM_ENABLE_PROJECTS
AND "clang" IN_LIST LLVM_ENABLE_PROJECTS)
@ -81,6 +81,10 @@ foreach(entrypoint IN LISTS TARGET_LIBC_ENTRYPOINTS TARGET_LIBM_ENTRYPOINTS)
list(APPEND TARGET_ENTRYPOINT_NAME_LIST ${entrypoint_name})
endforeach()
# We need to set up hdrgen first since other targets depend on it.
add_subdirectory(utils/LibcTableGenUtil)
add_subdirectory(utils/HdrGen)
add_subdirectory(include)
add_subdirectory(config)
add_subdirectory(src)

5
libc/cmake/modules/LLVMLibCHeaderRules.cmake
View File

@ -89,14 +89,15 @@ function(add_gen_header target_name)
add_custom_command(
OUTPUT ${out_file}
COMMAND $<TARGET_FILE:libc-hdrgen> -o ${out_file} --header ${ADD_GEN_HDR_GEN_HDR}
COMMAND ${LIBC_TABLEGEN_EXE} -o ${out_file} --header ${ADD_GEN_HDR_GEN_HDR}
--def ${in_file} ${replacement_params} -I ${LIBC_SOURCE_DIR}
${ENTRYPOINT_NAME_LIST_ARG}
${LIBC_SOURCE_DIR}/config/${LIBC_TARGET_OS}/api.td
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
DEPENDS ${in_file} ${fq_data_files} ${td_includes}
${LIBC_SOURCE_DIR}/config/${LIBC_TARGET_OS}/api.td libc-hdrgen
${LIBC_SOURCE_DIR}/config/${LIBC_TARGET_OS}/api.td
${LIBC_TABLEGEN_EXE} ${LIBC_TABLEGEN_TARGET}
)
get_fq_target_name(${target_name} fq_target_name)

2
libc/utils/CMakeLists.txt
View File

@ -1,7 +1,5 @@
add_subdirectory(CPP)
add_subdirectory(FPUtil)
add_subdirectory(LibcTableGenUtil)
add_subdirectory(HdrGen)
add_subdirectory(MPFRWrapper)
add_subdirectory(testutils)
add_subdirectory(tools)

2
libc/utils/HdrGen/CMakeLists.txt
View File

@ -1,6 +1,6 @@
set(LLVM_LINK_COMPONENTS Support)
add_tablegen(libc-hdrgen llvm-libc
add_tablegen(libc-hdrgen LIBC
Command.h
Command.cpp
Generator.cpp