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[libc] Support for generating proxy headers (#175279)

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This is a follow up to #174823 which adds build system integration.
This commit is contained in:
Petr Hosek 2026-01-09 23:21:16 -08:00 committed by GitHub
parent f7e7132c8e
commit 9a02a3c7f4
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GPG Key ID: B5690EEEBB952194
4 changed files with 11 additions and 2 deletions
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10
libc/cmake/modules/LLVMLibCHeaderRules.cmake
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@ -75,7 +75,7 @@ endfunction(add_header)
function(add_gen_header target_name)
cmake_parse_arguments(
"ADD_GEN_HDR"
"PUBLIC" # No optional arguments
"PROXY;PUBLIC" # No optional arguments
"YAML_FILE;GEN_HDR" # Single value arguments
"DEPENDS" # Multi value arguments
${ARGN}
@ -94,7 +94,12 @@ function(add_gen_header target_name)
set(absolute_path ${CMAKE_CURRENT_SOURCE_DIR}/${ADD_GEN_HDR_GEN_HDR})
file(RELATIVE_PATH relative_path ${LIBC_INCLUDE_SOURCE_DIR} ${absolute_path})
set(out_file ${LIBC_INCLUDE_DIR}/${relative_path})
if (ADD_GEN_HDR_PROXY)
set(out_file ${LIBC_BUILD_DIR}/hdr/${relative_path})
set(proxy_arg "--proxy")
else()
set(out_file ${LIBC_INCLUDE_DIR}/${relative_path})
endif()
set(dep_file "${out_file}.d")
set(yaml_file ${CMAKE_SOURCE_DIR}/${ADD_GEN_HDR_YAML_FILE})
@ -113,6 +118,7 @@ function(add_gen_header target_name)
--output ${out_file}
--depfile ${dep_file}
--write-if-changed
${proxy_arg}
${entry_points}
${yaml_file}
DEPENDS ${yaml_file}

1
libc/cmake/modules/LLVMLibCObjectRules.cmake
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@ -92,6 +92,7 @@ function(create_object_library fq_target_name)
)
target_include_directories(${fq_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
target_include_directories(${fq_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_include_directories(${fq_target_name} PRIVATE ${LIBC_BUILD_DIR})
target_compile_options(${fq_target_name} PRIVATE ${compile_options})
#loop through the deps, check if any have the TARGET_TYPE of ENTRYPOINT_OBJ_TARGET_TYPE, and print a warning if they do.

1
libc/cmake/modules/LLVMLibCTestRules.cmake
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@ -290,6 +290,7 @@ function(create_libc_unittest fq_target_name)
)
target_include_directories(${fq_build_target_name} SYSTEM PRIVATE ${LIBC_INCLUDE_DIR})
target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_SOURCE_DIR})
target_include_directories(${fq_build_target_name} PRIVATE ${LIBC_BUILD_DIR})
target_compile_options(${fq_build_target_name} PRIVATE ${compile_options})
target_link_options(${fq_build_target_name} PRIVATE ${link_options})

1
libc/utils/hdrgen/hdrgen/header.py
View File

@ -88,6 +88,7 @@ PROXY_TEMPLATE = """\
#ifdef LIBC_FULL_BUILD
{include_lines}
{macro_lines}
#else // Overlay mode