(target)
| 113 | |
| 114 | |
| 115 | def build_and_check(target): |
| 116 | print(f"-> Building: {target}") |
| 117 | # Currently the out dir always needs to be exactly 2 levels deep relative to |
| 118 | # the project root or siso fails to remote compile (see b/429331398). |
| 119 | build_prefix = f"_gen-static-roots-{target}" |
| 120 | build_dir = args.out / f"{build_prefix}-{machine_target()}.release" |
| 121 | if not build_dir.exists(): |
| 122 | build_dir.mkdir(parents=True, exist_ok=True) |
| 123 | config = STATIC_ROOT_CONFIGURATIONS[target] |
| 124 | |
| 125 | # Let gm create the default config |
| 126 | e = dict(os.environ) |
| 127 | e['V8_GM_OUTDIR'] = f"{args.out}" |
| 128 | e['V8_GM_BUILD_DIR_PREFIX'] = build_prefix |
| 129 | run([f"{sys.executable}", f"{GM}", f"{machine_target()}.release.gn_args"], |
| 130 | env=e) |
| 131 | |
| 132 | # Patch the default config according to our needs |
| 133 | gn_args_template = config["gn_args"].copy() |
| 134 | gn_args = (build_dir / "args.gn").open("r").read().splitlines() |
| 135 | |
| 136 | needs_updating = False |
| 137 | found = 0 |
| 138 | for line in filter(bool, gn_args): |
| 139 | result = re.search(r"^([^ ]+) = (.+)$", line) |
| 140 | if not result or len(result.groups()) != 2: |
| 141 | print(f"Error parsing {build_dir / 'args.gn'} at line '{line}'") |
| 142 | exit(255) |
| 143 | if result.group(1) in gn_args_template: |
| 144 | found += 1 |
| 145 | if result.group(2) != f"{gn_args_template[result.group(1)]}": |
| 146 | needs_updating = True |
| 147 | |
| 148 | if needs_updating or found < len(gn_args_template): |
| 149 | print("# Updating gn args") |
| 150 | with (build_dir / "args.gn").open("w") as f: |
| 151 | for line in filter(bool, gn_args): |
| 152 | result = re.search(r"^([^ ]+) = (.+)$", line) |
| 153 | if result.group(1) in gn_args_template: |
| 154 | line = f"{result.group(1)} = {gn_args_template[result.group(1)]}" |
| 155 | gn_args_template.pop(result.group(1)) |
| 156 | f.write(f"{line}\n") |
| 157 | for extra, val in gn_args_template.items(): |
| 158 | f.write(f"{extra} = {val}\n") |
| 159 | |
| 160 | # Build mksnapshot |
| 161 | run([f"{sys.executable}", f"{GM}", f"{machine_target()}.release.mksnapshot"], |
| 162 | env=e) |
| 163 | |
| 164 | # Generate static roots file and check if it changed |
| 165 | filename = f"static-roots-{target}.h" |
| 166 | out_file = Path(tempfile.gettempdir()) / filename |
| 167 | run([f"{build_dir / 'mksnapshot'}", "--static-roots-src", f"{out_file}"]) |
| 168 | target_file = V8_PATH / 'src' / 'roots' / filename |
| 169 | if not filecmp.cmp(out_file, target_file): |
| 170 | shutil.move(out_file, target_file) |
| 171 | return True |
| 172 | return False |
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