ca85e37338
Note: What ELF refers to as "TLS", Mach-O seems to refer to as "TLV", i.e. thread-local variables. This diff implements support for TLV relocations that reference defined symbols. On x86_64, TLV relocations are always used with movq opcodes, so for defined TLVs, we don't need to create a synthetic section to store the addresses of the symbols -- we can just convert the `movq` to a `leaq`. One notable quirk of Mach-O's TLVs is that absolute-address relocations inside TLV-defining sections behave differently -- their addresses are no longer absolute, but relative to the start of the target section. (AFAICT, RIP-relative relocations are not allowed in these sections.) Reviewed By: #lld-macho, compnerd, smeenai Differential Revision: https://reviews.llvm.org/D85080
43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
--- !tapi-tbd-v3
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archs: [ x86_64 ]
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uuids: [ 'x86_64: 00000000-0000-0000-0000-000000000000' ]
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platform: macosx
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install-name: '/usr/lib/libSystem.B.dylib'
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current-version: 0001.001.1
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exports:
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- archs: [ 'x86_64' ]
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re-exports: [ '/usr/lib/system/libdyld.dylib',
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'/usr/lib/system/libsystem_c.dylib',
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'/usr/lib/system/libsystem_m.dylib' ]
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--- !tapi-tbd-v3
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archs: [ x86_64 ]
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uuids: [ 'x86_64: 00000000-0000-0000-0000-000000000001' ]
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platform: macosx
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install-name: '/usr/lib/system/libdyld.dylib'
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current-version: 0001.001.1
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parent-umbrella: System
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exports:
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- archs: [ 'x86_64' ]
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symbols: [ dyld_stub_binder, __tlv_bootstrap ]
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--- !tapi-tbd-v3
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archs: [ x86_64 ]
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uuids: [ 'x86_64: 00000000-0000-0000-0000-000000000002' ]
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platform: macosx
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install-name: '/usr/lib/system/libsystem_c.dylib'
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current-version: 0001.001.1
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parent-umbrella: System
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exports:
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- archs: [ 'x86_64' ]
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symbols: [ ]
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--- !tapi-tbd-v3
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archs: [ x86_64 ]
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uuids: [ 'x86_64: 00000000-0000-0000-0000-000000000003' ]
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platform: macosx
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install-name: '/usr/lib/system/libsystem_m.dylib'
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current-version: 0001.001.1
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parent-umbrella: System
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exports:
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- archs: [ 'x86_64' ]
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symbols: [ ___nan ]
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...
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