#!/usr/bin/env python # -*- coding: utf-8 -*- # Copyright (c) 2013 The Chromium Authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. import("//build/config/clang/clang.gni") import("//build/config/compiler/compiler.gni") import("//build/config/sanitizers/sanitizers.gni") import("//build/config/v8_target_cpu.gni") import("//build/toolchain/cc_wrapper.gni") import("//build/toolchain/clang_static_analyzer.gni") import("//build/toolchain/toolchain.gni") if (!is_arkui_x) { import("//build/rust/rustc_toolchain.gni") } if (is_nacl) { # To keep NaCl variables out of builds that don't include NaCl, all # variables defined in nacl/config.gni referenced here should be protected by # is_nacl conditions. import("//build/config/nacl/config.gni") } declare_args() { # Enables allowlist generation for IDR_ grit defines seen by the compiler. # Currently works only on ohos and enabled by default for release builds. # Requires debug info, so disabled for symbol_level=0 & strip_debug_info=true. enable_resource_allowlist_generation = is_ohos && !is_debug && # Always enable for official builds, but enable for release builds by # default only when other args allow. (is_official_build || (!strip_debug_info && symbol_level > 0 && !is_component_build)) } declare_args() { share_ccache = "" } # When the arg is set via args.gn, it applies to all toolchains. In order to not # hit the assert in grit_rule.gni, explicitly disable for host toolchains. if (is_linux && target_os == "ohos") { enable_resource_allowlist_generation = false } # Path to the Clang static analysis wrapper script. # REVIEWERS: can you suggest a better location for this? # GN is really picky about dead stores of variables except at the global scope. analyzer_wrapper = rebase_path("//build/toolchain/clang_static_analyzer_wrapper.py", root_build_dir) + " --mode=clang" # This template defines a toolchain for something that works like gcc # (including clang). # # It requires the following variables specifying the executables to run: # - ar # - cc # - cxx # - ld # # Optional parameters that control the tools: # # - extra_cflags # Extra flags to be appended when compiling C files (but not C++ files). # - extra_cppflags # Extra flags to be appended when compiling both C and C++ files. "CPP" # stands for "C PreProcessor" in this context, although it can be # used for non-preprocessor flags as well. Not to be confused with # "CXX" (which follows). # - extra_cxxflags # Extra flags to be appended when compiling C++ files (but not C files). # - extra_asmflags # Extra flags to be appended when compiling assembly. # - extra_ldflags # Extra flags to be appended when linking # # - libs_section_prefix # - libs_section_postfix # The contents of these strings, if specified, will be placed around # the libs section of the linker line. It allows one to inject libraries # at the beginning and end for all targets in a toolchain. # - solink_libs_section_prefix # - solink_libs_section_postfix # Same as libs_section_{pre,post}fix except used for solink instead of link. # - link_outputs # The content of this array, if specified, will be added to the list of # outputs from the link command. This can be useful in conjunction with # the post_link parameter. # - use_unstripped_as_runtime_outputs # When |strip| is set, mark unstripped executables as runtime deps rather # than stripped ones. # - post_link # The content of this string, if specified, will be run as a separate # command following the the link command. # - deps # Just forwarded to the toolchain definition. # - executable_extension # If this string is specified it will be used for the file extension # for an executable, rather than using no extension; targets will # still be able to override the extension using the output_extension # variable. # - rebuild_define # The contents of this string, if specified, will be passed as a #define # to the toolchain. It can be used to force recompiles whenever a # toolchain is updated. # - shlib_extension # If this string is specified it will be used for the file extension # for a shared library, rather than default value specified in # toolchain.gni # - strip # Location of the strip executable. When specified, strip will be run on # all shared libraries and executables as they are built. The pre-stripped # artifacts will be put in lib.unstripped/ and exe.unstripped/. template("gcc_toolchain") { toolchain(target_name) { assert(defined(invoker.ar), "gcc_toolchain() must specify a \"ar\" value") assert(defined(invoker.cc), "gcc_toolchain() must specify a \"cc\" value") assert(defined(invoker.cxx), "gcc_toolchain() must specify a \"cxx\" value") assert(defined(invoker.ld), "gcc_toolchain() must specify a \"ld\" value") # This define changes when the toolchain changes, forcing a rebuild. # Nothing should ever use this define. if (defined(invoker.rebuild_define)) { rebuild_string = "-D" + invoker.rebuild_define + " " } else { rebuild_string = "" } # GN's syntax can't handle more than one scope dereference at once, like # "invoker.toolchain_args.foo", so make a temporary to hold the toolchain # args so we can do "invoker_toolchain_args.foo". assert(defined(invoker.toolchain_args), "Toolchains must specify toolchain_args") invoker_toolchain_args = invoker.toolchain_args assert(defined(invoker_toolchain_args.current_cpu), "toolchain_args must specify a current_cpu") assert(defined(invoker_toolchain_args.current_os), "toolchain_args must specify a current_os") # When invoking this toolchain not as the default one, these args will be # passed to the build. They are ignored when this is the default toolchain. toolchain_args = { # Populate toolchain args from the invoker. forward_variables_from(invoker_toolchain_args, "*") # The host toolchain value computed by the default toolchain's setup # needs to be passed through unchanged to all secondary toolchains to # ensure that it's always the same, regardless of the values that may be # set on those toolchains. host_toolchain = host_toolchain if (!defined(invoker_toolchain_args.v8_current_cpu)) { v8_current_cpu = invoker_toolchain_args.current_cpu } } if (is_clang && use_clang_static_analyzer && (!defined(invoker.is_clang_analysis_supported) || invoker.is_clang_analysis_supported)) { compiler_prefix = "${analyzer_wrapper} " asm = invoker.cc } else { if (defined(toolchain_args.cc_wrapper)) { toolchain_cc_wrapper = toolchain_args.cc_wrapper } else { toolchain_cc_wrapper = cc_wrapper } if (share_ccache != "") { compiler_prefix = "CCACHE_DIR=" + share_ccache + " CCACHE_NOHASHDIR=1 ${toolchain_cc_wrapper} " } else { compiler_prefix = "${toolchain_cc_wrapper} " } } cc = compiler_prefix + invoker.cc cxx = compiler_prefix + invoker.cxx ar = invoker.ar ld = invoker.ld if (!defined(asm)) { asm = cc } if (defined(invoker.readelf)) { readelf = invoker.readelf } else { readelf = "readelf" } if (defined(invoker.nm)) { nm = invoker.nm } else { nm = "nm" } if (defined(invoker.shlib_extension)) { default_shlib_extension = invoker.shlib_extension } else { default_shlib_extension = shlib_extension } if (defined(invoker.executable_extension)) { default_executable_extension = invoker.executable_extension } else { default_executable_extension = "" } if (!is_arkui_x) { if (defined(invoker.dylib_extension)) { default_dylib_extension = invoker.dylib_extension } else { default_dylib_extension = dylib_extension } if (defined(invoker.rlib_extension)) { default_rlib_extension = invoker.rlib_extension } else { default_rlib_extension = rlib_extension } } # Bring these into our scope for string interpolation with default values. if (defined(invoker.libs_section_prefix)) { libs_section_prefix = invoker.libs_section_prefix } else { libs_section_prefix = "" } if (defined(invoker.libs_section_postfix)) { libs_section_postfix = invoker.libs_section_postfix } else { libs_section_postfix = "" } if (defined(invoker.solink_libs_section_prefix)) { solink_libs_section_prefix = invoker.solink_libs_section_prefix } else { solink_libs_section_prefix = "" } if (defined(invoker.solink_libs_section_postfix)) { solink_libs_section_postfix = invoker.solink_libs_section_postfix } else { solink_libs_section_postfix = "" } if (defined(invoker.extra_cflags) && invoker.extra_cflags != "") { extra_cflags = " " + invoker.extra_cflags } else { extra_cflags = "" } if (defined(invoker.extra_cppflags) && invoker.extra_cppflags != "") { extra_cppflags = " " + invoker.extra_cppflags } else { extra_cppflags = "" } if (defined(invoker.extra_cxxflags) && invoker.extra_cxxflags != "") { extra_cxxflags = " " + invoker.extra_cxxflags } else { extra_cxxflags = "" } if (defined(invoker.extra_asmflags) && invoker.extra_asmflags != "") { extra_asmflags = " " + invoker.extra_asmflags } else { extra_asmflags = "" } if (defined(invoker.extra_ldflags) && invoker.extra_ldflags != "") { extra_ldflags = " " + invoker.extra_ldflags } else { extra_ldflags = "" } enable_linker_map = defined(invoker.enable_linker_map) && invoker.enable_linker_map && generate_linker_map # These library switches can apply to all tools below. lib_switch = "-l" lib_dir_switch = "-L" # Object files go in this directory. object_subdir = "{{source_out_dir}}/{{label_name}}" tool("cc") { depfile = "{{output}}.d" command = "$cc -MMD -MF $depfile ${rebuild_string}{{defines}} {{include_dirs}} {{cflags}} {{cflags_c}}${extra_cppflags}${extra_cflags} -c {{source}} -o {{output}}" depsformat = "gcc" description = "CC {{output}}" outputs = [ "$object_subdir/{{source_name_part}}.o" ] } tool("cxx") { depfile = "{{output}}.d" command = "$cxx -MMD -MF $depfile ${rebuild_string}{{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}}${extra_cppflags}${extra_cxxflags} -c {{source}} -o {{output}}" depsformat = "gcc" description = "CXX {{output}}" outputs = [ "$object_subdir/{{source_name_part}}.o" ] } tool("asm") { # For GCC we can just use the C compiler to compile assembly. depfile = "{{output}}.d" command = "$asm -MMD -MF $depfile ${rebuild_string}{{defines}} {{include_dirs}} {{asmflags}}${extra_asmflags} -c {{source}} -o {{output}}" depsformat = "gcc" description = "ASM {{output}}" outputs = [ "$object_subdir/{{source_name_part}}.o" ] } tool("alink") { if (current_os == "aix") { # AIX does not support either -D (deterministic output) or response # files. command = "$ar -X64 {{arflags}} -r -c -s {{output}} {{inputs}}" } else { rspfile = "{{output}}.rsp" rspfile_content = "{{inputs}}" command = "\"$ar\" {{arflags}} -r -c -s -D {{output}} @\"$rspfile\"" } # Remove the output file first so that ar doesn't try to modify the # existing file. if (host_os == "win") { tool_wrapper_path = rebase_path("//build/toolchain/win/tool_wrapper.py", root_build_dir) command = "cmd /c $python_path $tool_wrapper_path delete-file {{output}} && $command" } else { command = "rm -f {{output}} && $command" } # Almost all targets build with //build/config/compiler:thin_archive which # adds -T to arflags. description = "AR {{output}}" outputs = [ "{{output_dir}}/{{target_output_name}}{{output_extension}}" ] # Shared libraries go in the target out directory by default so we can # generate different targets with the same name and not have them collide. default_output_dir = "{{target_out_dir}}" default_output_extension = ".a" output_prefix = "lib" } tool("solink") { soname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.so". sofile = "{{output_dir}}/$soname" # Possibly including toolchain dir. rspfile = sofile + ".rsp" pool = "//build/toolchain:link_pool($default_toolchain)" is_mingw_link = false if (invoker_toolchain_args.current_os == "mingw") { is_mingw_link = true libname = "{{target_output_name}}.lib" libfile = "{{output_dir}}/$libname" } if (defined(invoker.strip)) { unstripped_sofile = "{{root_out_dir}}/lib.unstripped/$sofile" } else { unstripped_sofile = sofile } link_command = "$ld -shared {{ldflags}}${extra_ldflags} -o \"$unstripped_sofile\" @\"$rspfile\"" if (!is_mingw_link) { link_command = "$link_command -Wl,-soname=\"$soname\"" } else { link_command = "$link_command -Wl,--out-implib,{{root_out_dir}}/lib.unstripped/$libfile" } # Generate a map file to be used for binary size analysis. # Map file adds ~10% to the link time on a z620. map_switch = "" if (enable_linker_map && is_official_build) { map_file = "$unstripped_sofile.map.gz" map_switch = " --map-file \"$map_file\"" } assert(defined(readelf), "to solink you must have a readelf") assert(defined(nm), "to solink you must have an nm") strip_switch = "" if (defined(invoker.strip)) { strip_switch = "--strip=${invoker.strip} " if (current_cpu == "arm" && is_standard_system) { strip_debug_whitelist = rebase_path("//build/toolchain/strip_debug_whitelist.txt", root_build_dir) strip_switch += "--strip-debug-whitelist=${strip_debug_whitelist} " } } adlt_switch = "" if (enable_adlt && allowed_lib_list != "") { adlt_switch = "--target-name={{label_name}}" + " --target-out-dir={{target_out_dir}}" + " --allowed-lib-list=" + rebase_path(allowed_lib_list) } # This needs a Python script to avoid using a complex shell command # requiring sh control structures, pipelines, and POSIX utilities. # The host might not have a POSIX shell and utilities (e.g. Windows). solink_wrapper = rebase_path("//build/toolchain/gcc_solink_wrapper.py", root_build_dir) _clang_base_dir = rebase_path(toolchains_dir) command = "$python_path \"$solink_wrapper\" --readelf=\"$readelf\" --nm=\"$nm\" $strip_switch $adlt_switch --sofile=\"$unstripped_sofile\" $map_switch --output=\"$sofile\" --clang-base-dir=\"$_clang_base_dir\"" if (is_mingw_link) { command = "$command --libfile=\"$libfile\"" } if (full_mini_debug && !is_debug) { command = "$command --mini-debug" } command = "$command -- $link_command" rspfile_content = "-Wl,--whole-archive {{inputs}} {{solibs}} -Wl,--no-whole-archive $solink_libs_section_prefix {{libs}} $solink_libs_section_postfix" description = "SOLINK $sofile" # Declares toolchain solink to be compiled as whole-archive by default. toolchain_whole_archive = true # Use this for {{output_extension}} expansions unless a target manually # overrides it (in which case {{output_extension}} will be what the target # specifies). default_output_extension = default_shlib_extension default_output_dir = "{{root_out_dir}}" output_prefix = "lib" # Since the above commands only updates the .TOC file when it changes, ask # Ninja to check if the timestamp actually changed to know if downstream # dependencies should be recompiled. restat = true # Tell GN about the output files. It will link to the sofile outputs = [ sofile ] if (sofile != unstripped_sofile) { outputs += [ unstripped_sofile ] if (defined(invoker.use_unstripped_as_runtime_outputs) && invoker.use_unstripped_as_runtime_outputs) { runtime_outputs = [ unstripped_sofile ] } } if (defined(map_file)) { outputs += [ map_file ] } if (is_mingw_link) { outputs += [ libfile ] link_output = libfile depend_output = libfile } else { link_output = sofile depend_output = sofile } } tool("solink_module") { soname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.so". sofile = "{{output_dir}}/$soname" rspfile = sofile + ".rsp" pool = "//build/toolchain:link_pool($default_toolchain)" if (defined(invoker.strip)) { unstripped_sofile = "{{root_out_dir}}/lib.unstripped/$sofile" } else { unstripped_sofile = sofile } command = "$ld -shared {{ldflags}}${extra_ldflags} -o \"$unstripped_sofile\" -Wl,-soname=\"$soname\" @\"$rspfile\"" if (defined(invoker.strip)) { strip_command = "${invoker.strip} -o \"$sofile\" \"$unstripped_sofile\"" command += " && " + strip_command } rspfile_content = "-Wl,--whole-archive {{inputs}} {{solibs}} -Wl,--no-whole-archive $solink_libs_section_prefix {{libs}} $solink_libs_section_postfix" description = "SOLINK_MODULE $sofile" # Use this for {{output_extension}} expansions unless a target manually # overrides it (in which case {{output_extension}} will be what the target # specifies). if (defined(invoker.loadable_module_extension)) { default_output_extension = invoker.loadable_module_extension } else { default_output_extension = default_shlib_extension } default_output_dir = "{{root_out_dir}}" output_prefix = "lib" outputs = [ sofile ] if (sofile != unstripped_sofile) { outputs += [ unstripped_sofile ] if (defined(invoker.use_unstripped_as_runtime_outputs) && invoker.use_unstripped_as_runtime_outputs) { runtime_outputs = [ unstripped_sofile ] } } } tool("link") { exename = "{{target_output_name}}{{output_extension}}" outfile = "{{output_dir}}/$exename" rspfile = "$outfile.rsp" unstripped_outfile = outfile pool = "//build/toolchain:link_pool($default_toolchain)" # Use this for {{output_extension}} expansions unless a target manually # overrides it (in which case {{output_extension}} will be what the target # specifies). default_output_extension = default_executable_extension default_output_dir = "{{root_out_dir}}" if (defined(invoker.strip)) { unstripped_outfile = "{{root_out_dir}}/exe.unstripped/$outfile" } # Generate a map file to be used for binary size analysis. # Map file adds ~10% to the link time on a z620. map_switch = "" if (enable_linker_map && is_official_build) { map_file = "$unstripped_outfile.map.gz" map_switch = " --map-file \"$map_file\"" } start_group_flag = "" end_group_flag = "" if (current_os != "aix") { # the "--start-group .. --end-group" feature isn't available on the aix ld. start_group_flag = "-Wl,--start-group" end_group_flag = "-Wl,--end-group " } _clang_rt_dso_full_path = "" if (is_asan && invoker_toolchain_args.current_os == "ohos") { if (use_hwasan) { _clang_rt_dso_full_path = rebase_path( "$clang_base_path/lib/clang/$clang_version/lib/aarch64-linux-ohos/libclang_rt.hwasan.so", root_build_dir) } else if (invoker_toolchain_args.current_cpu == "arm64") { _clang_rt_dso_full_path = rebase_path( "$clang_base_path/lib/clang/$clang_version/lib/aarch64-linux-ohos/libclang_rt.asan.so", root_build_dir) } else if (invoker_toolchain_args.current_cpu == "riscv64") { _clang_rt_dso_full_path = rebase_path( "$clang_base_path/lib/clang/$clang_version/lib/riscv64-linux-ohos/libclang_rt.asan.so", root_build_dir) } else { _clang_rt_dso_full_path = rebase_path( "$clang_base_path/lib/clang/$clang_version/lib/arm-linux-ohos/libclang_rt.asan.so", root_build_dir) } } link_command = "$ld {{ldflags}}${extra_ldflags} -o \"$unstripped_outfile\" $libs_section_prefix $start_group_flag $_clang_rt_dso_full_path @\"$rspfile\" {{solibs}} {{libs}} $end_group_flag $libs_section_postfix" strip_switch = "" if (defined(invoker.strip)) { strip_switch = " --strip=\"${invoker.strip}\" --unstripped-file=\"$unstripped_outfile\"" } if (is_asan && invoker_toolchain_args.current_os == "ohos") { strip_switch = "$strip_switch --clang_rt_dso_path=\"$_clang_rt_dso_full_path\"" } link_wrapper = rebase_path("//build/toolchain/gcc_link_wrapper.py", root_build_dir) _clang_base_dir = rebase_path(toolchains_dir) command = "$python_path \"$link_wrapper\" --output=\"$outfile\"$strip_switch$map_switch --clang-base-dir=\"$_clang_base_dir\" " if (full_mini_debug && !is_debug) { command = "$command --mini-debug" } command = "$command -- $link_command" description = "LINK $outfile" rspfile_content = "{{inputs}}" outputs = [ outfile ] if (outfile != unstripped_outfile) { outputs += [ unstripped_outfile ] if (defined(invoker.use_unstripped_as_runtime_outputs) && invoker.use_unstripped_as_runtime_outputs) { runtime_outputs = [ unstripped_outfile ] } } if (defined(invoker.link_outputs)) { outputs += invoker.link_outputs } if (defined(map_file)) { outputs += [ map_file ] } } # These two are really entirely generic, but have to be repeated in # each toolchain because GN doesn't allow a template to be used here. # See //build/toolchain/toolchain.gni for details. tool("stamp") { command = stamp_command description = stamp_description } tool("copy") { command = copy_command description = copy_description } if (!is_arkui_x) { cc_command_args = "" if (defined(invoker.cc_command_args)) { cc_command_args = invoker.cc_command_args } if (invoker_toolchain_args.current_os == "mingw") { rust_dynamic = "" } else { rust_dynamic = "-C prefer-dynamic" } minidebug_switch = "" if (full_mini_debug && !is_debug) { minidebug_switch = " --mini-debug" } rust_sysroot_relative_to_out = rebase_path(rust_sysroot, root_out_dir) rustc_wrapper = rebase_path("//build/toolchain/rustc_wrapper.py", root_build_dir) _clang_base_dir = rebase_path(toolchains_dir) tool("rust_staticlib") { staticlibname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.a". outfile = "{{target_out_dir}}/$staticlibname" depfile = "$outfile.d" rspfile = "$outfile.rsp" rspfile_content = "{{rustdeps}} {{externs}}" pool = "//build/toolchain:link_pool($default_toolchain)" command = "$python_path \"$rustc_wrapper\" --clang-base-dir=$_clang_base_dir --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile -- --crate-name {{crate_name}} $rust_dynamic {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $outfile LDFLAGS RUSTENV {{rustenv}}" description = "RUST staticlib $outfile" rust_sysroot = rust_sysroot_relative_to_out outputs = [ outfile ] default_output_extension = ".a" output_prefix = "lib" } tool("rust_rlib") { rlibname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.rlib". outfile = "{{output_dir}}/$rlibname" depfile = "$outfile.d" rspfile = "$outfile.rsp" rspfile_content = "{{rustdeps}} {{externs}}" # Don't add rspfile in rust_rlib tool. pool = "//build/toolchain:link_pool($default_toolchain)" command = "$python_path \"$rustc_wrapper\" --clang-base-dir=$_clang_base_dir --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile -- --crate-name {{crate_name}} $rust_dynamic {{source}} --crate-type {{crate_type}} $cc_command_args {{rustdeps}} {{externs}} --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $outfile LDFLAGS RUSTENV {{rustenv}}" description = "RUST rlib $outfile" rust_sysroot = rust_sysroot_relative_to_out outputs = [ outfile ] default_output_extension = default_rlib_extension output_prefix = "lib" } if (invoker_toolchain_args.current_os == "mingw") { cdylib_link_option = "--out-implib" } else { cdylib_link_option = "-soname" } tool("rust_cdylib") { cdylibname = "{{target_output_name}}{{output_extension}}" # e.g. "libfoo.z.so". outfile = "{{output_dir}}/$cdylibname" depfile = "$outfile.d" rspfile = "$outfile.rsp" rspfile_content = "{{rustdeps}} {{externs}}" unstripped_outfile = "{{root_out_dir}}/lib.unstripped/$outfile" pool = "//build/toolchain:link_pool($default_toolchain)" strip_level = "none" # rustc supports none, debuginfo and symbols # three strip degree. strip_switch = " -C strip=$strip_level" minidebug_switch = "" if (full_mini_debug && !is_debug) { minidebug_switch = " --mini-debug" } command = "$python_path \"$rustc_wrapper\" --clang-base-dir=$_clang_base_dir --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} $rust_dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -Clink-arg=-Wl,$cdylib_link_option=\"$cdylibname\" -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}" description = "RUST cdylib $outfile" rust_sysroot = rust_sysroot_relative_to_out outputs = [ unstripped_outfile ] outputs += [ outfile ] default_output_extension = default_shlib_extension output_prefix = "lib" } tool("rust_bin") { exename = "{{target_output_name}}{{output_extension}}" outfile = "{{output_dir}}/$exename" depfile = "$outfile.d" rspfile = "$outfile.rsp" rspfile_content = "{{rustdeps}} {{externs}}" unstripped_outfile = "{{root_out_dir}}/exe.unstripped/$outfile" pool = "//build/toolchain:link_pool($default_toolchain)" strip_level = "none" # rustc supports none, debuginfo and symbols # three strip degree. strip_switch = " -C strip=$strip_level" minidebug_switch = "" if (full_mini_debug && !is_debug) { minidebug_switch = " --mini-debug" } command = "$python_path \"$rustc_wrapper\" --clang-base-dir=$_clang_base_dir --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS RUSTENV {{rustenv}}" description = "RUST bin $outfile" rust_sysroot = rust_sysroot_relative_to_out outputs = [ unstripped_outfile ] outputs += [ outfile ] default_output_extension = default_executable_extension } tool("rust_dylib") { dylibname = "{{target_output_name}}{{output_extension}}" # e.g. # "libfoo.dylib.so". outfile = "{{output_dir}}/$dylibname" depfile = "$outfile.d" rspfile = "$outfile.rsp" rspfile_content = "{{rustdeps}} {{externs}}" unstripped_outfile = "{{root_out_dir}}/lib.unstripped/$outfile" pool = "//build/toolchain:link_pool($default_toolchain)" strip_level = "none" # rustc supports none, debuginfo and symbols # three strip degree. strip_switch = " -C strip=$strip_level" minidebug_switch = "" if (full_mini_debug && !is_debug) { minidebug_switch = " --mini-debug" } command = "$python_path \"$rustc_wrapper\" --clang-base-dir=$_clang_base_dir --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} $rust_dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}" description = "RUST dylib $outfile" rust_sysroot = rust_sysroot_relative_to_out outputs = [ unstripped_outfile ] outputs += [ outfile ] default_output_extension = default_dylib_extension output_prefix = "lib" } tool("rust_macro") { dylibname = "{{target_output_name}}{{output_extension}}" # e.g. # "libfoo.dylib.so". outfile = "{{output_dir}}/$dylibname" depfile = "$outfile.d" rspfile = "$outfile.rsp" rspfile_content = "{{rustdeps}} {{externs}}" unstripped_outfile = "{{root_out_dir}}/lib.unstripped/$outfile" pool = "//build/toolchain:link_pool($default_toolchain)" strip_level = "none" # rustc supports none, debuginfo and symbols # three strip degree. strip_switch = " -C strip=$strip_level" minidebug_switch = "" if (full_mini_debug && !is_debug) { minidebug_switch = " --mini-debug" } command = "$python_path \"$rustc_wrapper\" --clang-base-dir=$_clang_base_dir --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} $rust_dynamic $strip_switch {{source}} --crate-type {{crate_type}} $cc_command_args --emit=dep-info=$depfile,link -Z dep-info-omit-d-target -Z unstable-options {{rustflags}} -o $unstripped_outfile LDFLAGS {{ldflags}} RUSTENV {{rustenv}}" description = "RUST proc-macro $outfile" rust_sysroot = rust_sysroot_relative_to_out outputs = [ unstripped_outfile ] outputs += [ outfile ] default_output_extension = default_dylib_extension output_prefix = "lib" } } tool("action") { pool = "//build/toolchain:action_pool($default_toolchain)" } forward_variables_from(invoker, [ "deps" ]) } } # This is a shorthand for gcc_toolchain instances based on the Chromium-built # version of Clang. Only the toolchain_cpu and toolchain_os variables need to # be specified by the invoker, and optionally toolprefix if it's a # cross-compile case. Note that for a cross-compile case this toolchain # requires a config to pass the appropriate -target option, or else it will # actually just be doing a native compile. The invoker can optionally override # use_gold too. template("clang_toolchain") { if (defined(invoker.toolprefix)) { toolprefix = invoker.toolprefix } else { toolprefix = "" } gcc_toolchain(target_name) { prefix = rebase_path("$clang_base_path/bin", root_build_dir) cc = "$prefix/clang" cxx = "$prefix/clang++" ld = cxx readelf = "${toolprefix}readelf" ar = "${prefix}/llvm-ar" nm = "${toolprefix}nm" forward_variables_from(invoker, [ "strip", "is_clang_analysis_supported", "enable_linker_map", "use_unstripped_as_runtime_outputs", "rust_abi_target", ]) toolchain_args = { if (defined(invoker.toolchain_args)) { forward_variables_from(invoker.toolchain_args, "*") } is_clang = true } if (defined(invoker.shlib_extension) && invoker.shlib_extension != "") { shlib_extension = invoker.shlib_extension } if (defined(rust_abi_target)) { if (rust_abi_target == "x86_64-unknown-linux-gnu") { clang_lib_path = rebase_path("$clang_base_path/lib", root_build_dir) cc_command_args = "--target=${rust_abi_target} -Clinker=$clang -lstdc++ -lclang -L${clang_lib_path} -Clink-arg=-fuse-ld=lld -Clink-arg=-v" } } } }