upward-dylib-load-command.yaml
1.6 KB
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# RUN: ld64.lld -arch x86_64 -dylib %p/Inputs/bar.yaml \
# RUN: -install_name /usr/lib/libbar.dylib %p/Inputs/x86_64/libSystem.yaml -o %t1.dylib
# RUN: ld64.lld -arch x86_64 -dylib %s -upward_library %t1.dylib \
# RUN: -install_name /usr/lib/libfoo.dylib %p/Inputs/x86_64/libSystem.yaml -o %t
# RUN: llvm-objdump -private-headers %t | FileCheck %s
#
#
# Test upward linking: 1) build libbar.dylib, 2) build libfoo.dylib and upward
# like with libbar.dylib, 3) dump load commands of libfoo and verify upward link.
#
--- !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: 1
global-symbols:
- name: _foo
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000000
undefined-symbols:
- name: _bar
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
...
# CHECK: cmd LC_LOAD_UPWARD_DYLIB
# CHECK-NEXT: cmdsize 48
# CHECK-NEXT: name /usr/lib/libbar.dylib (offset 24)