f29ca58e88
- Don't pass `--as-needed` to the linker on Mac OS which is unsupported
there
- Use `--force_load` rather than `--Wl,--whole-archive` on Mac OS
- Scan `rustc`'s linker arguments for `-dylib` and `-dynamiclib`, which
it can use instead of `-shared` on Mac OS:
7bd81ee190/compiler/rustc_codegen_ssa/src/back/linker.rs (L319)
Test: m libhalf serde_derive
Bug: 291164566
Change-Id: Iecd6c2532fa31c9476834f49b109de98cbd2dccf
85 lines
2.5 KiB
Python
Executable file
85 lines
2.5 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Copyright (C) 2023 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""
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This script is used as a replacement for the Rust linker. It converts a linker
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command line into a rspfile that can be used during the link phase.
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"""
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import os
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import shutil
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import subprocess
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import sys
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def create_archive(out, objects, archives):
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mricmd = f'create {out}\n'
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for o in objects:
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mricmd += f'addmod {o}\n'
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for a in archives:
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mricmd += f'addlib {a}\n'
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mricmd += 'save\nend\n'
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subprocess.run([os.getenv('AR'), '-M'], encoding='utf-8', input=mricmd, check=True)
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objects = []
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archives = []
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linkdirs = []
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libs = []
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temp_archives = []
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version_script = None
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for i, arg in enumerate(sys.argv):
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if arg == '-o':
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out = sys.argv[i+1]
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if arg == '-L':
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linkdirs.append(sys.argv[i+1])
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if arg.startswith('-l') or arg == '-shared':
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libs.append(arg)
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if os.getenv('ANDROID_RUST_DARWIN') and (arg == '-dylib' or arg == '-dynamiclib'):
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libs.append(arg)
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if arg.startswith('-Wl,--version-script='):
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version_script = arg[21:]
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if arg[0] == '-':
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continue
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if arg.endswith('.o') or arg.endswith('.rmeta'):
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objects.append(arg)
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if arg.endswith('.rlib'):
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if arg.startswith(os.getenv('TMPDIR')):
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temp_archives.append(arg)
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else:
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archives.append(arg)
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create_archive(f'{out}.whole.a', objects, [])
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create_archive(f'{out}.a', [], temp_archives)
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with open(out, 'w') as f:
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if os.getenv("ANDROID_RUST_DARWIN"):
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print(f'-force_load', file=f)
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print(f'{out}.whole.a', file=f)
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else:
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print(f'-Wl,--whole-archive', file=f)
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print(f'{out}.whole.a', file=f)
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print(f'-Wl,--no-whole-archive', file=f)
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print(f'{out}.a', file=f)
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for a in archives:
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print(a, file=f)
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for linkdir in linkdirs:
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print(f'-L{linkdir}', file=f)
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for l in libs:
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print(l, file=f)
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if version_script:
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shutil.copyfile(version_script, f'{out}.version_script')
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print(f'-Wl,--version-script={out}.version_script', file=f)
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