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import("//llvm/utils/gn/build/buildflags.gni")
import("//llvm/utils/gn/build/mac_sdk.gni")
import("//llvm/utils/gn/build/toolchain/compiler.gni")
import("//llvm/utils/gn/build/toolchain/target_flags.gni")
config("compiler_defaults") {
defines = []
if (!llvm_enable_assertions) {
defines += [ "NDEBUG" ]
}
cflags = target_flags + target_cflags
ldflags = target_flags + target_ldflags
if (host_os == "mac" && clang_base_path != "") {
cflags += [
"-isysroot",
mac_sdk_path,
]
}
if (host_os != "win") {
if (is_debug) {
cflags += [ "-g" ]
} else {
cflags += [ "-O3" ]
}
cflags += [ "-fdiagnostics-color" ]
cflags_cc = [
"-std=c++11",
"-fno-exceptions",
"-fvisibility-inlines-hidden",
]
} else {
if (is_debug) {
cflags += [ "/Zi" ]
} else {
cflags += [
"/O2",
"/Zc:inline",
]
}
defines += [
"_CRT_SECURE_NO_DEPRECATE",
"_CRT_SECURE_NO_WARNINGS",
"_CRT_NONSTDC_NO_DEPRECATE",
"_CRT_NONSTDC_NO_WARNINGS",
"_SCL_SECURE_NO_DEPRECATE",
"_SCL_SECURE_NO_WARNINGS",
"_HAS_EXCEPTIONS=0",
"_UNICODE",
"UNICODE",
]
cflags += [ "/EHs-c-" ]
# The MSVC default value (1 MB) is not enough for parsing recursive C++
# templates in Clang.
ldflags = [ "/STACK:10000000" ]
}
# Warning setup.
if (host_os == "win" && !is_clang) {
cflags += [
# Suppress ''modifier' : used more than once' (__forceinline and inline).
"-wd4141",
# Suppress 'conversion from 'type1' to 'type2', possible loss of data'.
"-wd4244",
# Suppress 'conversion from 'size_t' to 'type', possible loss of data'.
"-wd4267",
# Suppress 'no matching operator delete found'.
"-wd4291",
# Suppress 'noexcept used with no exception handling mode specified'.
"-wd4577",
# Suppress 'destructor was implicitly defined as deleted'.
"-wd4624",
# Suppress 'unsafe mix of type <type> and type <type> in operation'.
"-wd4805",
]
} else {
if (host_os == "win") {
cflags += [ "/W4" ]
} else {
cflags += [
"-Wall",
"-Wextra",
]
}
cflags += [
"-Wno-unused-parameter",
"-Wstring-conversion",
]
if (is_clang) {
cflags += [ "-Wdelete-non-virtual-dtor" ]
}
if (is_clang && use_goma) {
# goma converts all paths to lowercase on the server, breaking this
# warning.
cflags += [ "-Wno-nonportable-include-path" ]
}
}
if (use_lld) {
ldflags += [ "-fuse-ld=lld" ]
}
}
config("no_rtti") {
if (current_os == "win") {
cflags_cc = [ "/GR-" ]
} else {
cflags_cc = [ "-fno-rtti" ]
}
}
config("llvm_code") {
include_dirs = [
"//llvm/include",
"$root_gen_dir/llvm/include",
]
}
config("lld_code") {
include_dirs = [
"//lld/include",
"$root_gen_dir/lld/include",
]
}
config("clang_code") {
include_dirs = [
"//clang/include",
"$root_gen_dir/clang/include",
]
}
config("crt_code") {
include_dirs = [ "//compiler-rt/lib" ]
cflags = [
"-fPIC",
"-funwind-tables",
"-gline-tables-only",
]
}
config("warn_covered_switch_default") {
if (is_clang) {
cflags = [ "-Wcovered-switch-default" ]
}
}
|
