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# -*- bazel-starlark -*-
# Copyright 2023 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Siso configuration for ChromeOS builds."""
load("@builtin//lib/gn.star", "gn")
load("@builtin//path.star", "path")
load("@builtin//struct.star", "module")
def __filegroups(ctx):
fg = {}
if not "args.gn" in ctx.metadata:
print("no args.gn")
return fg
gn_args = gn.args(ctx)
if not "cros_target_cxx" in gn_args:
print("no cros_target_cxx")
return fg
toolchain = gn_args.get("cros_target_cxx")
toolchain = toolchain.strip('"')
toolchain = ctx.fs.canonpath(toolchain)
print("toolchain = %s" % toolchain)
if toolchain:
toolchain = path.dir(path.dir(toolchain))
fg[toolchain + ":headers"] = {
"type": "glob",
"includes": ["*"],
}
if not "target_sysroot" in gn_args:
print("no target_sysroot")
return fg
sysroot = gn_args.get("target_sysroot")
sysroot = sysroot.strip('"')
sysroot = ctx.fs.canonpath(sysroot)
print("sysroot = %s" % sysroot)
if sysroot:
fg[path.join(sysroot, "usr/include") + ":include"] = {
"type": "glob",
"includes": ["*"],
# needs bits/stab.def, c++/*
}
fg[path.join(sysroot, "usr/lib") + ":headers"] = {
"type": "glob",
"includes": ["*.h", "crtbegin.o"],
}
fg[path.join(sysroot, "usr/lib64") + ":headers"] = {
"type": "glob",
"includes": ["*.h"],
}
print(fg)
return fg
def __cros_compiler(ctx, cmd):
tool_inputs = cmd.tool_inputs
for i, arg in enumerate(cmd.args):
if arg.startswith("-fprofile-sample-use="):
# profile data is in ninja input (direct or indirect),
# but siso doesn't include ninja inputs for deps=gcc
# (it would include lots of unnecessary inputs)
# so just add profdata by checking command line flag.
profdata = ctx.fs.canonpath(arg.removeprefix("-fprofile-sample-use="))
tool_inputs.append(profdata)
ctx.actions.fix(tool_inputs = tool_inputs)
__handlers = {
"cros_compiler": __cros_compiler,
}
def __step_config(ctx, step_config):
if not "args.gn" in ctx.metadata:
return step_config
gn_args = gn.args(ctx)
if "cros_target_cxx" in gn_args:
toolchain = gn_args.get("cros_target_cxx")
if toolchain:
step_config["rules"].extend([
{
"name": "clang-cros/cxx",
"action": "(.*_)?cxx",
"command_prefix": "../../build/cros_cache/chrome-sdk/",
"remote": True,
"handler": "cros_compiler",
"canonicalize_dir": True,
"timeout": "5m",
},
{
"name": "clang-cros/cc",
"action": "(.*_)?cc",
"command_prefix": "../../build/cros_cache/chrome-sdk/",
"remote": True,
"handler": "cros_compiler",
"canonicalize_dir": True,
"timeout": "5m",
},
])
if "target_sysroot" in gn_args:
sysroot = gn_args.get("target_sysroot")
if sysroot:
sysroot = sysroot.strip('"')
sysroot = ctx.fs.canonpath(sysroot)
step_config["input_deps"].update({
sysroot + ":headers": [
path.join(sysroot, "usr/include") + ":include",
path.join(sysroot, "usr/lib") + ":headers",
path.join(sysroot, "usr/lib64") + ":headers",
],
})
return step_config
cros = module(
"cros",
filegroups = __filegroups,
handlers = __handlers,
step_config = __step_config,
)
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