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Chef - Support cross platform Linux builds for arm64 #20232

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merged 2 commits into from
Jul 2, 2022
Merged

Chef - Support cross platform Linux builds for arm64 #20232

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6b418a7
Chef - Use array for passing linux args to args.gni
cpagravel Jun 30, 2022
1d69cd1
Chef - Add support for cross compiling linux on arm64
cpagravel Jul 1, 2022
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62 changes: 47 additions & 15 deletions examples/chef/chef.py
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Original file line number Diff line number Diff line change
Expand Up @@ -326,6 +326,11 @@ def main(argv: Sequence[str]) -> None:
dest="keep_going", action="store_true")
parser.add_option(
"", "--ci", help="Builds Chef examples defined in cicd_config. Uses --use_zzz. Uses specified target from -t. Chef exits after completion.", dest="ci", action="store_true")
parser.add_option(
"", "--ipv6only", help="Compile build which only supports ipv6. Linux only.",
action="store_true")
parser.add_option(
"", "--cpu_type", help="CPU type to compile for. Linux only.", choices=["arm64", "x64"])

options, _ = parser.parse_args(argv)

Expand Down Expand Up @@ -599,29 +604,56 @@ def main(argv: Sequence[str]) -> None:

elif options.build_target == "linux":
shell.run_cmd(f"cd {_CHEF_SCRIPT_PATH}/linux")

linux_args = []
if options.do_rpc:
linux_args.append('import("//with_pw_rpc.gni")')
linux_args.extend([
'import("//build_overrides/chip.gni")',
'import("${chip_root}/config/standalone/args.gni")',
'chip_shell_cmd_server = false',
'chip_build_libshell = true',
'chip_config_network_layer_ble = false',
f'target_defines = ["CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID={options.vid}", "CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_ID={options.pid}", "CONFIG_ENABLE_PW_RPC={int(options.do_rpc)}"]',
])
if options.cpu_type == "arm64":
uname_resp = shell.run_cmd("uname -m", return_cmd_output=True)
if "aarch" not in uname_resp and "arm" not in uname_resp:
if (
"aarch" not in uname_resp and
"arm" not in uname_resp and
"SYSROOT_AARCH64" not in shell.env):
flush_print(
"SYSROOT_AARCH64 env variable not set. "
"AARCH64 toolchain needed for cross-compiling for arm64.")
exit(1)
shell.env["PKG_CONFIG_PATH"] = (
f'{shell.env["SYSROOT_AARCH64"]}/lib/aarch64-linux-gnu/pkgconfig')
linux_args.append('target_cpu="arm64"')
linux_args.append('is_clang=true')
linux_args.append('chip_crypto="mbedtls"')
linux_args.append(f'sysroot="{shell.env["SYSROOT_AARCH64"]}"')
elif options.cpu_type == "x64":
uname_resp = shell.run_cmd("uname -m", return_cmd_output=True)
if "x64" not in uname_resp and "x86_64" not in uname_resp:
flush_print(f"Unable to cross compile for x64 on {uname_resp}")
exit(1)
if options.ipv6only:
linux_args.append("chip_inet_config_enable_ipv4=false")

if sw_ver_string:
linux_args.append(
f'chip_device_config_device_software_version_string = "{sw_ver_string}"')
with open(f"{_CHEF_SCRIPT_PATH}/linux/args.gni", "w") as f:
sw_ver_string_config_text = f"chip_device_config_device_software_version_string = \"{sw_ver_string}\"" if sw_ver_string else ""
f.write(textwrap.dedent(f"""\
import("//build_overrides/chip.gni")
import("${{chip_root}}/config/standalone/args.gni")
chip_shell_cmd_server = false
chip_build_libshell = true
chip_config_network_layer_ble = false
target_defines = ["CHIP_DEVICE_CONFIG_DEVICE_VENDOR_ID={options.vid}", "CHIP_DEVICE_CONFIG_DEVICE_PRODUCT_ID={options.pid}", "CONFIG_ENABLE_PW_RPC={'1' if options.do_rpc else '0'}"]
{sw_ver_string_config_text}
"""))
f.write("\n".join(linux_args))
with open(f"{_CHEF_SCRIPT_PATH}/linux/sample.gni", "w") as f:
f.write(textwrap.dedent(f"""\
sample_zap_file = "{options.sample_device_type_name}.zap"
sample_name = "{options.sample_device_type_name}"
"""))
if options.do_clean:
shell.run_cmd(f"rm -rf out")
if options.do_rpc:
shell.run_cmd(
"gn gen out --args='import(\"//with_pw_rpc.gni\")'")
else:
shell.run_cmd("gn gen out --args=''")
shell.run_cmd("gn gen out")
shell.run_cmd("ninja -C out")

#
Expand Down