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121 lines
4.4 KiB
Python
121 lines
4.4 KiB
Python
# This file is licensed under the Apache License v2.0 with LLVM Exceptions.
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# See https://llvm.org/LICENSE.txt for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""Defines variables that use selects to configure LLVM based on platform."""
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load(
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"//:vars.bzl",
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"LLVM_VERSION_MAJOR",
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"LLVM_VERSION_MINOR",
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"LLVM_VERSION_PATCH",
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"PACKAGE_VERSION",
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)
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def native_arch_defines(arch, triple):
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return [
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r'LLVM_NATIVE_ARCH=\"{}\"'.format(arch),
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"LLVM_NATIVE_ASMPARSER=LLVMInitialize{}AsmParser".format(arch),
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"LLVM_NATIVE_ASMPRINTER=LLVMInitialize{}AsmPrinter".format(arch),
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"LLVM_NATIVE_DISASSEMBLER=LLVMInitialize{}Disassembler".format(arch),
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"LLVM_NATIVE_TARGET=LLVMInitialize{}Target".format(arch),
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"LLVM_NATIVE_TARGETINFO=LLVMInitialize{}TargetInfo".format(arch),
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"LLVM_NATIVE_TARGETMC=LLVMInitialize{}TargetMC".format(arch),
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"LLVM_NATIVE_TARGETMCA=LLVMInitialize{}TargetMCA".format(arch),
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r'LLVM_HOST_TRIPLE=\"{}\"'.format(triple),
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r'LLVM_DEFAULT_TARGET_TRIPLE=\"{}\"'.format(triple),
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]
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posix_defines = [
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"LLVM_ON_UNIX=1",
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"HAVE_BACKTRACE=1",
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"BACKTRACE_HEADER=<execinfo.h>",
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r'LTDL_SHLIB_EXT=\".so\"',
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r'LLVM_PLUGIN_EXT=\".so\"',
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"LLVM_ENABLE_THREADS=1",
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"HAVE_DEREGISTER_FRAME=1",
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"HAVE_LIBPTHREAD=1",
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"HAVE_PTHREAD_GETNAME_NP=1",
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"HAVE_PTHREAD_H=1",
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"HAVE_PTHREAD_SETNAME_NP=1",
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"HAVE_REGISTER_FRAME=1",
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"HAVE_SETENV_R=1",
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"HAVE_STRERROR_R=1",
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"HAVE_SYSEXITS_H=1",
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"HAVE_UNISTD_H=1",
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]
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linux_defines = posix_defines + [
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"_GNU_SOURCE",
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"HAVE_GETAUXVAL=1",
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"HAVE_MALLINFO=1",
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"HAVE_SBRK=1",
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"HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC=1",
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]
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macos_defines = posix_defines + [
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"HAVE_MACH_MACH_H=1",
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"HAVE_MALLOC_MALLOC_H=1",
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"HAVE_MALLOC_ZONE_STATISTICS=1",
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"HAVE_PROC_PID_RUSAGE=1",
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"HAVE_UNW_ADD_DYNAMIC_FDE=1",
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]
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win32_defines = [
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# Windows system library specific defines.
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"_CRT_SECURE_NO_DEPRECATE",
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"_CRT_SECURE_NO_WARNINGS",
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"_CRT_NONSTDC_NO_DEPRECATE",
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"_CRT_NONSTDC_NO_WARNINGS",
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"_SCL_SECURE_NO_DEPRECATE",
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"_SCL_SECURE_NO_WARNINGS",
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"UNICODE",
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"_UNICODE",
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# LLVM features
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r'LTDL_SHLIB_EXT=\".dll\"',
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r'LLVM_PLUGIN_EXT=\".dll\"',
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]
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# TODO: We should switch to platforms-based config settings to make this easier
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# to express.
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os_defines = select({
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"@bazel_tools//src/conditions:windows": win32_defines,
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"@bazel_tools//src/conditions:darwin": macos_defines,
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"@bazel_tools//src/conditions:freebsd": posix_defines,
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"//conditions:default": linux_defines,
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})
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# HAVE_BUILTIN_THREAD_POINTER is true for on Linux (outside of ppc64) for
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# all recent toolchains. Add it here by default on Linux as we can't perform a
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# configure time check.
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builtin_thread_pointer = select({
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"@bazel_tools//src/conditions:linux_ppc64le": [],
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"@bazel_tools//src/conditions:linux": ["HAVE_BUILTIN_THREAD_POINTER"],
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"//conditions:default": [],
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})
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# TODO: We should split out host vs. target here.
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llvm_config_defines = os_defines + builtin_thread_pointer + select({
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"@bazel_tools//src/conditions:windows": native_arch_defines("X86", "x86_64-pc-win32"),
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"@bazel_tools//src/conditions:darwin_arm64": native_arch_defines("AArch64", "arm64-apple-darwin"),
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"@bazel_tools//src/conditions:darwin_x86_64": native_arch_defines("X86", "x86_64-unknown-darwin"),
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"@bazel_tools//src/conditions:linux_aarch64": native_arch_defines("AArch64", "aarch64-unknown-linux-gnu"),
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"@bazel_tools//src/conditions:linux_ppc64le": native_arch_defines("PowerPC", "powerpc64le-unknown-linux-gnu"),
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"@bazel_tools//src/conditions:linux_s390x": native_arch_defines("SystemZ", "systemz-unknown-linux_gnu"),
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"//conditions:default": native_arch_defines("X86", "x86_64-unknown-linux-gnu"),
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}) + [
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"LLVM_VERSION_MAJOR={}".format(LLVM_VERSION_MAJOR),
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"LLVM_VERSION_MINOR={}".format(LLVM_VERSION_MINOR),
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"LLVM_VERSION_PATCH={}".format(LLVM_VERSION_PATCH),
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r'LLVM_VERSION_STRING=\"{}\"'.format(PACKAGE_VERSION),
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# These shouldn't be needed by the C++11 standard, but are for some
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# platforms (e.g. glibc < 2.18. See
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# https://sourceware.org/bugzilla/show_bug.cgi?id=15366). These are also
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# included unconditionally in the CMake build:
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# https://github.com/llvm/llvm-project/blob/cd0dd8ece8e/llvm/cmake/modules/HandleLLVMOptions.cmake#L907-L909
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"__STDC_LIMIT_MACROS",
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"__STDC_CONSTANT_MACROS",
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"__STDC_FORMAT_MACROS",
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]
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