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[gn build] Kind of port c7b3a91017d2 (libclang version script)

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libclang is only built as static library in the GN build at the
moment, which means we now generate a .exports file form a version
script and then link.exe and ld64 inputs from the .exports file
but don't use the version script, but hey.
This commit is contained in:
Nico Weber 2021-07-26 22:10:46 -04:00
parent 5997b61680
commit 8a88013900
3 changed files with 18 additions and 3 deletions
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1
utils/gn/build/symbol_exports.gni
View File

@ -44,6 +44,7 @@ template("symbol_exports") {
} }
action(target_name) { action(target_name) {
forward_variables_from(invoker, [ "deps" ])
script = "//llvm/utils/gn/build/symbol_exports.py" script = "//llvm/utils/gn/build/symbol_exports.py"
inputs = [ invoker.exports_file ] inputs = [ invoker.exports_file ]
outputs = [ linker_file ] outputs = [ linker_file ]

3
utils/gn/secondary/clang/test/BUILD.gn
View File

@ -105,12 +105,15 @@ write_lit_config("lit_site_cfg") {
if (host_os == "win") { if (host_os == "win") {
extra_values += [ extra_values += [
# See comment for Windows solink in llvm/utils/gn/build/toolchain/BUILD.gn
"CMAKE_LIBRARY_OUTPUT_DIRECTORY=" + rebase_path("$root_out_dir/bin", dir),
"LLVM_ENABLE_PLUGINS=0", "LLVM_ENABLE_PLUGINS=0",
"LLVM_LIT_ERRC_MESSAGES=no such file or directory;is a directory;" + "LLVM_LIT_ERRC_MESSAGES=no such file or directory;is a directory;" +
"invalid argument;permission denied", "invalid argument;permission denied",
] ]
} else { } else {
extra_values += [ extra_values += [
"CMAKE_LIBRARY_OUTPUT_DIRECTORY=" + rebase_path("$root_out_dir/lib", dir),
"LLVM_ENABLE_PLUGINS=0", # FIXME: Analysis/plugins need global -fPIC "LLVM_ENABLE_PLUGINS=0", # FIXME: Analysis/plugins need global -fPIC
"LLVM_LIT_ERRC_MESSAGES=", "LLVM_LIT_ERRC_MESSAGES=",
] ]

17
utils/gn/secondary/clang/tools/libclang/BUILD.gn
View File

@ -14,10 +14,21 @@ if (host_os != "win" && host_os != "mac") {
# ELF targets need -fPIC to build shared libs but they aren't on by default. # ELF targets need -fPIC to build shared libs but they aren't on by default.
# For now, make libclang a static lib there. # For now, make libclang a static lib there.
libclang_target_type = "static_library" libclang_target_type = "static_library"
} } else {
action("linker_script_to_exports") {
script = "linker-script-to-export-list.py"
inputs = [ "libclang.map" ]
outputs = [ "$target_gen_dir/libclang.exports" ]
args = [
rebase_path(inputs[0], root_build_dir),
rebase_path(outputs[0], root_build_dir),
]
}
symbol_exports("exports") { symbol_exports("exports") {
exports_file = "libclang.exports" deps = [ ":linker_script_to_exports" ]
exports_file = "$target_gen_dir/libclang.exports"
}
} }
target(libclang_target_type, "libclang") { target(libclang_target_type, "libclang") {