805 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			805 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|  | #!/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 (!build_cross_platform_version) { | ||
|  |   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 (!build_cross_platform_version) { | ||
|  |       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} " | ||
|  |       } | ||
|  | 
 | ||
|  |       # 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) | ||
|  |       command = "$python_path \"$solink_wrapper\" --readelf=\"$readelf\" --nm=\"$nm\" $strip_switch --sofile=\"$unstripped_sofile\" $map_switch --output=\"$sofile\"" | ||
|  |       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 $sofile" | ||
|  | 
 | ||
|  |       # Use this for {{output_extension}} expansions unless a target manually | ||
|  |       # overrides it (in which case {{output_extension}} will be what the target | ||
|  |       # specifies). | ||
|  |       default_output_extension = default_shlib_extension | ||
|  | 
 | ||
|  |       default_output_dir = "{{root_out_dir}}" | ||
|  | 
 | ||
|  |       output_prefix = "lib" | ||
|  | 
 | ||
|  |       # Since the above commands only updates the .TOC file when it changes, ask | ||
|  |       # Ninja to check if the timestamp actually changed to know if downstream | ||
|  |       # dependencies should be recompiled. | ||
|  |       restat = true | ||
|  | 
 | ||
|  |       # Tell GN about the output files. It will link to the sofile | ||
|  |       outputs = [ sofile ] | ||
|  |       if (sofile != unstripped_sofile) { | ||
|  |         outputs += [ unstripped_sofile ] | ||
|  |         if (defined(invoker.use_unstripped_as_runtime_outputs) && | ||
|  |             invoker.use_unstripped_as_runtime_outputs) { | ||
|  |           runtime_outputs = [ unstripped_sofile ] | ||
|  |         } | ||
|  |       } | ||
|  |       if (defined(map_file)) { | ||
|  |         outputs += [ map_file ] | ||
|  |       } | ||
|  | 
 | ||
|  |       if (is_mingw_link) { | ||
|  |         outputs += [ libfile ] | ||
|  |         link_output = libfile | ||
|  |         depend_output = libfile | ||
|  |       } else { | ||
|  |         link_output = sofile | ||
|  |         depend_output = sofile | ||
|  |       } | ||
|  |     } | ||
|  | 
 | ||
|  |     tool("solink_module") { | ||
|  |       soname = "{{target_output_name}}{{output_extension}}"  # e.g. "libfoo.so". | ||
|  |       sofile = "{{output_dir}}/$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 \"$map_file\"" | ||
|  |       } | ||
|  | 
 | ||
|  |       start_group_flag = "" | ||
|  |       end_group_flag = "" | ||
|  |       if (current_os != "aix") { | ||
|  |         # the "--start-group .. --end-group" feature isn't available on the aix ld. | ||
|  |         start_group_flag = "-Wl,--start-group" | ||
|  |         end_group_flag = "-Wl,--end-group " | ||
|  |       } | ||
|  |       _clang_rt_dso_full_path = "" | ||
|  |       if (is_asan && invoker_toolchain_args.current_os == "ohos") { | ||
|  |         if (invoker_toolchain_args.current_cpu == "arm64") { | ||
|  |           _clang_rt_dso_full_path = rebase_path( | ||
|  |                   "$clang_base_path/lib/clang/$clang_version/lib/aarch64-linux-ohos/libclang_rt.asan.so", | ||
|  |                   root_build_dir) | ||
|  |         } else { | ||
|  |           _clang_rt_dso_full_path = rebase_path( | ||
|  |                   "$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=\"$_clang_rt_dso_full_path\"" | ||
|  |       } | ||
|  | 
 | ||
|  |       link_wrapper = | ||
|  |           rebase_path("//build/toolchain/gcc_link_wrapper.py", root_build_dir) | ||
|  |       command = "$python_path \"$link_wrapper\" --output=\"$outfile\"$strip_switch$map_switch " | ||
|  |       if (full_mini_debug && !is_debug) { | ||
|  |         command = "$command --mini-debug" | ||
|  |       } | ||
|  |       command = "$command -- $link_command" | ||
|  |       description = "LINK $outfile" | ||
|  |       rspfile_content = "{{inputs}}" | ||
|  |       outputs = [ outfile ] | ||
|  |       if (outfile != unstripped_outfile) { | ||
|  |         outputs += [ unstripped_outfile ] | ||
|  |         if (defined(invoker.use_unstripped_as_runtime_outputs) && | ||
|  |             invoker.use_unstripped_as_runtime_outputs) { | ||
|  |           runtime_outputs = [ unstripped_outfile ] | ||
|  |         } | ||
|  |       } | ||
|  |       if (defined(invoker.link_outputs)) { | ||
|  |         outputs += invoker.link_outputs | ||
|  |       } | ||
|  |       if (defined(map_file)) { | ||
|  |         outputs += [ map_file ] | ||
|  |       } | ||
|  |     } | ||
|  | 
 | ||
|  |     # These two are really entirely generic, but have to be repeated in | ||
|  |     # each toolchain because GN doesn't allow a template to be used here. | ||
|  |     # See //build/toolchain/toolchain.gni for details. | ||
|  |     tool("stamp") { | ||
|  |       command = stamp_command | ||
|  |       description = stamp_description | ||
|  |     } | ||
|  |     tool("copy") { | ||
|  |       command = copy_command | ||
|  |       description = copy_description | ||
|  |     } | ||
|  | 
 | ||
|  |     if (!build_cross_platform_version) { | ||
|  |       cc_command_args = "" | ||
|  |       if (defined(invoker.cc_command_args)) { | ||
|  |         cc_command_args = invoker.cc_command_args | ||
|  |       } | ||
|  | 
 | ||
|  |       rust_sysroot_relative_to_out = rebase_path(rust_sysroot, root_out_dir) | ||
|  |       rustc_wrapper = | ||
|  |           rebase_path("//build/toolchain/rustc_wrapper.py", root_build_dir) | ||
|  |       tool("rust_staticlib") { | ||
|  |         staticlibname = | ||
|  |             "{{target_output_name}}{{output_extension}}"  # e.g. "libfoo.a". | ||
|  |         outfile = "{{target_out_dir}}/$staticlibname" | ||
|  |         depfile = "$outfile.d" | ||
|  |         rspfile = "$outfile.rsp" | ||
|  |         rspfile_content = "{{rustdeps}} {{externs}}" | ||
|  | 
 | ||
|  |         pool = "//build/toolchain:link_pool($default_toolchain)" | ||
|  | 
 | ||
|  |         command = "$python_path \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile -- --crate-name {{crate_name}} -C prefer-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 $outfile" | ||
|  |         rust_sysroot = rust_sysroot_relative_to_out | ||
|  |         outputs = [ outfile ] | ||
|  |         default_output_extension = ".a" | ||
|  |         output_prefix = "lib" | ||
|  |       } | ||
|  | 
 | ||
|  |       tool("rust_rlib") { | ||
|  |         rlibname = | ||
|  |             "{{target_output_name}}{{output_extension}}"  # e.g. "libfoo.rlib". | ||
|  |         outfile = "{{target_out_dir}}/$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 \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile -- --crate-name {{crate_name}} -C prefer-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 $outfile" | ||
|  |         rust_sysroot = rust_sysroot_relative_to_out | ||
|  |         outputs = [ outfile ] | ||
|  |         default_output_extension = default_rlib_extension | ||
|  |         output_prefix = "lib" | ||
|  |       } | ||
|  | 
 | ||
|  |       tool("rust_cdylib") { | ||
|  |         cdylibname = | ||
|  |             "{{target_output_name}}{{output_extension}}"  # e.g. "libfoo.z.so". | ||
|  |         outfile = "{{output_dir}}/$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 \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-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,-soname=\"$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 \"$rustc_wrapper\" --clippy-driver=$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 \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-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 \"$rustc_wrapper\" --clippy-driver=$clippy_driver --rustc=$rustc --depfile=$depfile --rsp=$rspfile --output=$outfile --unstripped-file=$unstripped_outfile --strip=$llvm_strip $minidebug_switch -- --crate-name {{crate_name}} -C prefer-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" | ||
|  |       } | ||
|  |     } | ||
|  |   } | ||
|  | } |