interposing-section.yaml
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# RUN: ld64.lld -arch x86_64 %s %p/Inputs/interposing-section.yaml \
# RUN: -dylib -o %t %p/Inputs/x86_64/libSystem.yaml
# RUN: llvm-objdump -private-headers %t | FileCheck %s
#
# RUN: ld64.lld -arch x86_64 %s -r -o %t1
# RUN: llvm-objdump -private-headers %t1 | FileCheck %s
#
# Test that interposing section is preserved by linker.
#
--- !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, 0x31, 0xC0, 0x5D, 0xE9,
0x00, 0x00, 0x00, 0x00 ]
relocations:
- offset: 0x00000008
type: X86_64_RELOC_BRANCH
length: 2
pc-rel: true
extern: true
symbol: 2
- segment: __DATA
section: __interpose
type: S_INTERPOSING
attributes: [ ]
alignment: 8
address: 0x0000000000000010
content: [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
relocations:
- offset: 0x00000008
type: X86_64_RELOC_UNSIGNED
length: 3
pc-rel: false
extern: true
symbol: 2
- offset: 0x00000000
type: X86_64_RELOC_UNSIGNED
length: 3
pc-rel: false
extern: true
symbol: 0
local-symbols:
- name: _my_open
type: N_SECT
sect: 1
value: 0x0000000000000000
- name: __interpose_open
type: N_SECT
sect: 2
desc: [ N_NO_DEAD_STRIP ]
value: 0x0000000000000010
undefined-symbols:
- name: _open
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
...
# CHECK: sectname __interposing
# CHECK: segname __DATA
# CHECK: type S_INTERPOSING