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350 lines
10 KiB
350 lines
10 KiB
declare_args() {
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host_ar = ar
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host_cc = cc
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host_cxx = cxx
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if (is_android) {
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if (host_os == "win") {
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target_ar = "$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/$ndk_target/bin/ar.exe"
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target_cc = "$ndk/toolchains/llvm/prebuilt/$ndk_host/bin/clang.exe"
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target_cxx = "$ndk/toolchains/llvm/prebuilt/$ndk_host/bin/clang++.exe"
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} else {
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target_ar = "$ndk/toolchains/$ndk_gccdir-4.9/prebuilt/$ndk_host/$ndk_target/bin/ar"
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target_cc = "$ndk/toolchains/llvm/prebuilt/$ndk_host/bin/clang"
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target_cxx = "$ndk/toolchains/llvm/prebuilt/$ndk_host/bin/clang++"
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}
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} else {
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target_ar = ar
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target_cc = cc
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target_cxx = cxx
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}
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cc_wrapper = ""
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}
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if (host_os == "win") {
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stamp = "cmd.exe /c echo >"
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} else {
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stamp = "touch"
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}
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toolchain("msvc") {
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lib_dir_switch = "/LIBPATH:"
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if (msvc == 2015) {
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if (target_cpu == "x86") {
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bin = "$win_vc/bin"
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} else {
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bin = "$win_vc/bin/amd64"
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}
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} else {
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bin = "$win_vc/Tools/MSVC/$win_toolchain_version/bin/HostX64/$target_cpu"
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}
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env_setup = ""
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if (target_cpu == "x86") {
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# Toolchain asset includes a script that configures for x86 building.
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# We don't support x86 builds with local MSVC installations.
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env_setup = "cmd /c $win_sdk/bin/SetEnv.cmd /x86 && "
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} else if (target_cpu == "arm64") {
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# ARM64 compiler is incomplete - it relies on DLLs located in the host toolchain directory.
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env_setup = "cmd /C set \"PATH=%PATH%;$win_vc\\Tools\\MSVC\\$win_toolchain_version\\bin\\HostX64\\x64\" && "
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}
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cl_m32_flag = ""
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if (clang_win != "") {
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if (target_cpu == "x86") {
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# cl.exe knows implicitly by the choice of executable that it's targeting
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# x86, but clang-cl.exe needs to be told when targeting non-host
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# platforms. (All our builders are x86-64, so x86 is always non-host.)
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cl_m32_flag = "-m32"
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}
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if (host_os == "win") {
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cl = "\"$clang_win/bin/clang-cl.exe\""
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lib = "\"$clang_win/bin/lld-link.exe\" /lib"
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link = "\"$clang_win/bin/lld-link.exe\""
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} else {
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cl = "\"$clang_win/bin/clang-cl\""
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lib = "\"$clang_win/bin/lld-link\" /lib"
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link = "\"$clang_win/bin/lld-link\""
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}
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} else {
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cl = "\"$bin/cl.exe\""
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lib = "\"$bin/lib.exe\""
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link = "\"$bin/link.exe\""
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}
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tool("asm") {
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_ml = "ml"
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if (target_cpu == "x64") {
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_ml += "64"
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}
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command = "$env_setup \"$bin/$_ml.exe\" {{asmflags}} /nologo /c /Fo {{output}} {{source}}"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.obj",
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]
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description = "assemble {{source}}"
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}
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tool("cc") {
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precompiled_header_type = "msvc"
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pdbname = "{{target_out_dir}}/{{label_name}}_c.pdb"
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# Label names may have spaces so pdbname must be quoted.
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command = "$env_setup $cc_wrapper $cl /nologo /showIncludes /FC {{defines}} {{include_dirs}} {{cflags}} $cl_m32_flag {{cflags_c}} /c {{source}} /Fo{{output}} /Fd\"$pdbname\""
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depsformat = "msvc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.obj",
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]
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description = "compile {{source}}"
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}
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tool("cxx") {
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precompiled_header_type = "msvc"
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pdbname = "{{target_out_dir}}/{{label_name}}_c.pdb"
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# Label names may have spaces so pdbname must be quoted.
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command = "$env_setup $cc_wrapper $cl /nologo /showIncludes /FC {{defines}} {{include_dirs}} {{cflags}} $cl_m32_flag {{cflags_cc}} /c {{source}} /Fo{{output}} /Fd\"$pdbname\""
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depsformat = "msvc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.obj",
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]
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description = "compile {{source}}"
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}
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tool("alink") {
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rspfile = "{{output}}.rsp"
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command = "$env_setup $lib /nologo /ignore:4221 {{arflags}} /OUT:{{output}} @$rspfile"
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outputs = [
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# Ignore {{output_extension}} and always use .lib, there's no reason to
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# allow targets to override this extension on Windows.
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"{{root_out_dir}}/{{target_output_name}}{{output_extension}}",
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]
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default_output_extension = ".lib"
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default_output_dir = "{{target_out_dir}}"
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# inputs_newline works around a fixed per-line buffer size in the linker.
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rspfile_content = "{{inputs_newline}}"
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description = "link {{output}}"
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}
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tool("solink") {
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dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
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libname = "${dllname}.lib"
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pdbname = "${dllname}.pdb"
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rspfile = "${dllname}.rsp"
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command = "$env_setup $link /nologo /IMPLIB:$libname /DLL /OUT:$dllname /PDB:$pdbname @$rspfile"
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outputs = [
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dllname,
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libname,
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pdbname,
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]
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default_output_extension = ".dll"
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default_output_dir = "{{root_out_dir}}"
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link_output = libname
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depend_output = libname
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runtime_outputs = [
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dllname,
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pdbname,
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]
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# I don't quite understand this. Aping Chrome's toolchain/win/BUILD.gn.
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restat = true
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# inputs_newline works around a fixed per-line buffer size in the linker.
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rspfile_content = "{{inputs_newline}} {{libs}} {{solibs}} {{ldflags}}"
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description = "link {{output}}"
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}
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tool("link") {
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exename = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}"
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pdbname = "$exename.pdb"
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rspfile = "$exename.rsp"
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command = "$env_setup $link /nologo /OUT:$exename /PDB:$pdbname @$rspfile"
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default_output_extension = ".exe"
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default_output_dir = "{{root_out_dir}}"
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outputs = [
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exename,
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]
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# inputs_newline works around a fixed per-line buffer size in the linker.
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rspfile_content = "{{inputs_newline}} {{libs}} {{solibs}} {{ldflags}}"
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description = "link {{output}}"
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}
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tool("stamp") {
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command = "$stamp {{output}}"
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description = "stamp {{output}}"
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}
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tool("copy") {
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cp_py = rebase_path("../cp.py")
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command = "python $cp_py {{source}} {{output}}"
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description = "copy {{source}} {{output}}"
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}
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}
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template("gcc_like_toolchain") {
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toolchain(target_name) {
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ar = invoker.ar
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cc = invoker.cc
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cxx = invoker.cxx
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lib_switch = "-l"
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lib_dir_switch = "-L"
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tool("cc") {
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depfile = "{{output}}.d"
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command = "$cc_wrapper $cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
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]
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description = "compile {{source}}"
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}
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tool("cxx") {
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depfile = "{{output}}.d"
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command = "$cc_wrapper $cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
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]
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description = "compile {{source}}"
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}
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tool("objc") {
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depfile = "{{output}}.d"
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command = "$cc_wrapper $cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_objc}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
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]
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description = "compile {{source}}"
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}
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tool("objcxx") {
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depfile = "{{output}}.d"
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command = "$cc_wrapper $cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} {{cflags_objcc}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
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]
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description = "compile {{source}}"
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}
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tool("asm") {
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depfile = "{{output}}.d"
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command = "$cc_wrapper $cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{asmflags}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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outputs = [
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"{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o",
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]
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description = "assemble {{source}}"
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}
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tool("alink") {
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rspfile = "{{output}}.rsp"
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rspfile_content = "{{inputs}}"
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ar_py = rebase_path("../ar.py")
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command = "python $ar_py $ar {{output}} $rspfile"
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outputs = [
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"{{root_out_dir}}/{{target_output_name}}{{output_extension}}",
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]
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default_output_extension = ".a"
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output_prefix = "lib"
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description = "link {{output}}"
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}
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tool("solink") {
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soname = "{{target_output_name}}{{output_extension}}"
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rpath = "-Wl,-soname,$soname"
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if (is_mac) {
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rpath = "-Wl,-install_name,@rpath/$soname"
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}
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rspfile = "{{output}}.rsp"
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rspfile_content = "{{inputs}}"
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command = "$cc_wrapper $cxx -shared {{ldflags}} @$rspfile {{solibs}} {{libs}} $rpath -o {{output}}"
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outputs = [
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"{{root_out_dir}}/$soname",
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]
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output_prefix = "lib"
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default_output_extension = ".so"
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description = "link {{output}}"
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}
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tool("link") {
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rspfile = "{{output}}.rsp"
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rspfile_content = "{{inputs}}"
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# --start-group/--end-group let us link multiple .a {{inputs}}
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# without worrying about their relative order on the link line.
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#
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# This is mostly important for traditional linkers like GNU ld and Gold.
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# The Mac/iOS linker neither needs nor accepts these flags.
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# LLD doesn't need these flags, but accepts and ignores them.
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_start_group = "-Wl,--start-group"
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_end_group = "-Wl,--end-group"
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if (is_mac || is_ios) {
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_start_group = ""
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_end_group = ""
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}
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command = "$cc_wrapper $cxx {{ldflags}} $_start_group @$rspfile {{solibs}} $_end_group {{libs}} -o {{output}}"
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outputs = [
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"{{root_out_dir}}/{{target_output_name}}{{output_extension}}",
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]
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description = "link {{output}}"
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}
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tool("stamp") {
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command = "$stamp {{output}}"
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description = "stamp {{output}}"
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}
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tool("copy") {
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cp_py = rebase_path("../cp.py")
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command = "python $cp_py {{source}} {{output}}"
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description = "copy {{source}} {{output}}"
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}
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tool("copy_bundle_data") {
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cp_py = rebase_path("../cp.py")
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command = "python $cp_py {{source}} {{output}}"
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description = "copy_bundle_data {{source}} {{output}}"
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}
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# We don't currently have any xcasset files so make this a NOP
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tool("compile_xcassets") {
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command = "true"
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description = "compile_xcassets {{output}}"
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}
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toolchain_args = {
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current_cpu = invoker.cpu
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current_os = invoker.os
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}
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}
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}
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gcc_like_toolchain("gcc_like") {
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cpu = current_cpu
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os = current_os
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ar = target_ar
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cc = target_cc
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cxx = target_cxx
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}
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gcc_like_toolchain("gcc_like_host") {
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cpu = host_cpu
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os = host_os
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ar = host_ar
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cc = host_cc
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cxx = host_cxx
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}
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