1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
function(add_startup_object name)
cmake_parse_arguments(
"ADD_STARTUP_OBJECT"
"ALIAS" # Option argument
"SRC" # Single value arguments
"DEPENDS;COMPILE_OPTIONS" # Multi value arguments
${ARGN}
)
get_fq_target_name(${name} fq_target_name)
if(ADD_STARTUP_OBJECT_ALIAS)
get_fq_deps_list(fq_dep_list ${ADD_STARTUP_OBJECT_DEPENDS})
add_library(${fq_target_name} ALIAS ${fq_dep_list})
return()
endif()
add_object_library(
${name}
SRCS ${ADD_STARTUP_OBJECT_SRC}
COMPILE_OPTIONS ${ADD_STARTUP_OBJECT_COMPILE_OPTIONS}
${ADD_STARTUP_OBJECT_UNPARSED_ARGUMENTS}
DEPENDS ${ADD_STARTUP_OBJECT_DEPENDS}
)
set_target_properties(
${fq_target_name}
PROPERTIES
OUTPUT_NAME ${name}.o
)
# Make an executable target of relocatable bitcode for clang if needed.
if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR)
add_executable(${fq_target_name}.exe $<TARGET_OBJECTS:${fq_target_name}>)
set_target_properties(${fq_target_name}.exe PROPERTIES
RUNTIME_OUTPUT_DIRECTORY ${LIBC_LIBRARY_DIR}
RUNTIME_OUTPUT_NAME ${name}.o)
target_link_options(${fq_target_name}.exe PRIVATE
"-r" "-nostdlib" "-flto" "-Wl,--lto-emit-llvm")
endif()
endfunction()
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_ARCHITECTURE})
add_subdirectory(${LIBC_TARGET_ARCHITECTURE})
else()
message(WARNING "Cannot build 'crt1.o' for ${LIBC_TARGET_ARCHITECTURE} yet.")
return()
endif()
add_startup_object(
crt1
ALIAS
DEPENDS
.${LIBC_TARGET_ARCHITECTURE}.crt1
)
add_custom_target(libc-startup)
set(startup_components crt1)
foreach(target IN LISTS startup_components)
set(fq_target_name libc.startup.gpu.${target})
add_dependencies(libc-startup ${fq_target_name})
install(FILES $<TARGET_OBJECTS:${fq_target_name}>
DESTINATION ${LIBC_INSTALL_LIBRARY_DIR}
RENAME $<TARGET_PROPERTY:${fq_target_name},OUTPUT_NAME>
COMPONENT libc)
endforeach()
|
