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| author | Jez Ng <jezng@fb.com> | 2023-03-27 16:39:37 -0400 |
|---|---|---|
| committer | Jez Ng <jezng@fb.com> | 2023-03-27 16:39:37 -0400 |
| commit | 4f086218ddc3862b695abc986b2387db55e89da9 (patch) | |
| tree | c820fbddf5b6cb1881f0712b95c4223f04ef2927 /lld/test | |
| parent | 64b3bbc5220615b13d4a003877c773b8745a4d00 (diff) | |
| download | llvm-4f086218ddc3862b695abc986b2387db55e89da9.tar.gz | |
[lld-macho] Support re-exports of individual symbols
Specifically, we support this:
ld64.lld -dylib foo.o libbar.dylib -exported_symbol _bar -o libfoo.dylib
Where `_bar` is defined in libbar.dylib.
Reviewed By: #lld-macho, smeenai
Differential Revision: https://reviews.llvm.org/D144153
Diffstat (limited to 'lld/test')
| -rw-r--r-- | lld/test/MachO/export-options.s | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/lld/test/MachO/export-options.s b/lld/test/MachO/export-options.s index 5ec52d15cfd9..3a63afc6d5a3 100644 --- a/lld/test/MachO/export-options.s +++ b/lld/test/MachO/export-options.s @@ -1,6 +1,7 @@ # REQUIRES: x86 # RUN: rm -rf %t; split-file %s %t +# RUN: echo "" | llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/empty.o # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/default.s -o %t/default.o # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/lazydef.s -o %t/lazydef.o # RUN: llvm-ar --format=darwin rcs %t/lazydef.a %t/lazydef.o @@ -190,9 +191,27 @@ # NOEXPORTS-NOT: literal_also # NOEXPORTS-NOT: literal_only +# RUN: %lld -dylib %t/default.o -o %t/libdefault.dylib +# RUN: %lld -dylib %t/empty.o %t/libdefault.dylib -exported_symbol _keep_globl \ +# RUN: -exported_symbol _undef -exported_symbol _tlv \ +# RUN: -undefined dynamic_lookup -o %t/reexport-dylib +# RUN: llvm-objdump --macho --exports-trie %t/reexport-dylib + +# REEXPORT: Exports trie: +# REEXPORT-NEXT: [re-export] _tlv [per-thread] (from libdefault) +# REEXPORT-NEXT: [re-export] _keep_globl (from libdefault) +# REEXPORT-NEXT: [re-export] _undef (from unknown) + +## -unexported_symbol will not make us re-export symbols in dylibs. +# RUN: %lld -dylib %t/default.o -o %t/libdefault.dylib +# RUN: %lld -dylib %t/empty.o %t/libdefault.dylib -unexported_symbol _tlv \ +# RUN: -o %t/unexport-dylib +# RUN: llvm-objdump --macho --exports-trie %t/unexport-dylib | FileCheck %s \ +# RUN: --check-prefix=EMPTY-TRIE + #--- default.s -.globl _keep_globl, _hide_globl +.globl _keep_globl, _hide_globl, _tlv _keep_globl: retq _hide_globl: @@ -203,6 +222,9 @@ _private_extern: _private: retq +.section __DATA,__thread_vars,thread_local_variables +_tlv: + #--- lazydef.s .globl _keep_lazy |