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llvm-project/lld/test/mach-o/keep_private_externs.yaml

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[mach-o] Add support for -exported_symbols_list and -keep_private_externs Both options control the final scope of atoms. When -exported_symbols_list <file> is used, the file is parsed into one symbol per line in the file. Only those symbols will be exported (global) in the final linked image. The -keep_private_externs option is only used with -r mode. Normally, -r mode reduces private extern (scopeLinkageUnit) symbols to non-external. But add the -keep_private_externs option keeps them private external. llvm-svn: 216146
2014-08-21 09:59:11 +08:00
# RUN: lld -flavor darwin -arch x86_64 -r %s -o %t \
# RUN: && llvm-nm -m %t | FileCheck %s
#
# RUN: lld -flavor darwin -arch x86_64 -r %s -o %t2 -keep_private_externs \
# RUN: && llvm-nm -m %t2 | FileCheck -check-prefix=CHECK_KPE %s
#
# Test -keep_private_externs in -r mode.
#
--- !mach-o
arch: x86_64
file-type: MH_OBJECT
flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
sections:
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
address: 0x0000000000000000
content: [ 0x55, 0x48, 0x89, 0xE5, 0x5D, 0xC3, 0x55, 0x48,
0x89, 0xE5, 0x5D, 0xC3 ]
- segment: __DATA
section: __data
type: S_REGULAR
attributes: [ ]
alignment: 2
address: 0x000000000000000C
content: [ 0x0A, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00 ]
global-symbols:
- name: _a
type: N_SECT
scope: [ N_EXT ]
sect: 2
value: 0x000000000000000C
- name: _b
type: N_SECT
scope: [ N_EXT, N_PEXT ]
sect: 2
value: 0x0000000000000010
- name: _bar
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000006
- name: _foo
type: N_SECT
scope: [ N_EXT, N_PEXT ]
sect: 1
value: 0x0000000000000000
...
# CHECK: (__DATA,__data) external _a
# CHECK: (__DATA,__data) non-external (was a private external) _b
# CHECK: (__TEXT,__text) external _bar
# CHECK: (__TEXT,__text) non-external (was a private external) _foo
# CHECK_KPE: (__DATA,__data) external _a
# CHECK_KPE: (__DATA,__data) private external _b
# CHECK_KPE: (__TEXT,__text) external _bar
# CHECK_KPE: (__TEXT,__text) private external _foo