415c0cd698
The new Darwin backend for LLD is now able to link reasonably large real-world programs on x86_64. For instance, we have achieved self-hosting for the X86_64 target, where all LLD tests pass when building lld with itself on macOS. As such, we would like to make it the default back-end. The new port is now named `ld64.lld`, and the old port remains accessible as `ld64.lld.darwinold` This [annoucement email][1] has some context. (But note that, unlike what the email says, we are no longer doing this as part of the LLVM 12 branch cut -- instead we will go into LLVM 13.) Numerous mechanical test changes were required to make this change; in the interest of creating something that's reviewable on Phabricator, I've split out the boring changes into a separate diff (D95905). I plan to merge its contents with those in this diff before landing. (@gkm made the original draft of this diff, and he has agreed to let me take over.) [1]: https://lists.llvm.org/pipermail/llvm-dev/2021-January/147665.html Reviewed By: #lld-macho, thakis Differential Revision: https://reviews.llvm.org/D95204
66 lines
2.3 KiB
YAML
66 lines
2.3 KiB
YAML
# RUN: ld64.lld.darwinold -arch x86_64 -r %s -o %t -print_atoms | FileCheck %s
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#
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# Test -keep_private_externs in -r mode.
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#
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--- !mach-o
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arch: x86_64
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file-type: MH_OBJECT
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flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
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sections:
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- segment: __TEXT
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section: __objc_methname
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type: S_CSTRING_LITERALS
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attributes: [ ]
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address: 0x0000000000000000
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content: [ 0x61, 0x62, 0x63, 0x00, 0x64, 0x65, 0x66, 0x00 ]
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- segment: __TEXT
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section: __objc_classname
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type: S_CSTRING_LITERALS
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attributes: [ ]
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address: 0x0000000000000006
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content: [ 0x61, 0x62, 0x63, 0x00, 0x67, 0x68, 0x69, 0x00 ]
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- segment: __TEXT
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section: __cstring
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type: S_CSTRING_LITERALS
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attributes: [ ]
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address: 0x000000000000000A
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content: [ 0x61, 0x62, 0x63, 0x00, 0x6A, 0x6B, 0x6C, 0x00 ]
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...
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# CHECK: defined-atoms:
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# CHECK: - scope: hidden
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# CHECK: type: c-string
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# CHECK: content: [ 61, 62, 63, 00 ]
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# CHECK: merge: by-content
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# CHECK: section-choice: custom-required
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# CHECK: section-name: '__TEXT/__objc_methname'
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# CHECK: - scope: hidden
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# CHECK: type: c-string
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# CHECK: content: [ 64, 65, 66, 00 ]
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# CHECK: merge: by-content
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# CHECK: section-choice: custom-required
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# CHECK: section-name: '__TEXT/__objc_methname'
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# CHECK: - scope: hidden
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# CHECK: type: c-string
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# CHECK: content: [ 61, 62, 63, 00 ]
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# CHECK: merge: by-content
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# CHECK: section-choice: custom-required
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# CHECK: section-name: '__TEXT/__objc_classname'
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# CHECK: - scope: hidden
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# CHECK: type: c-string
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# CHECK: content: [ 67, 68, 69, 00 ]
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# CHECK: merge: by-content
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# CHECK: section-choice: custom-required
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# CHECK: section-name: '__TEXT/__objc_classname'
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# CHECK: - scope: hidden
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# CHECK: type: c-string
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# CHECK: content: [ 61, 62, 63, 00 ]
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# CHECK: merge: by-content
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# CHECK: - scope: hidden
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# CHECK: type: c-string
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# CHECK: content: [ 6A, 6B, 6C, 00 ]
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# CHECK: merge: by-content
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