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llvm-project/lld/test/mach-o/infer-arch.yaml

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[mach-o] Let darwin driver infer arch from .o files if -arch not used. Mach-O has a "fat" (or "universal") variant where the same contents built for different architectures are concatenated into one file with a table-of-contents header at the start. But this leaves a dilemma for the linker - which architecture to use. Normally, the linker command line -arch is used to force which slice of any fat files are used. The clang compiler always passes -arch to the linker when invoking it. But some Makefiles invoke the linker directly and don’t specify the -arch option. For those cases, the linker scans all input files in command line order and finds the first non-fat object file. Whatever architecture it is becomes the architecture for the link. llvm-svn: 217189
2014-09-05 04:08:30 +08:00
# RUN: lld -flavor darwin -arch i386 -macosx_version_min 10.8 %s -r -o %t \
# RUN: && lld -flavor darwin -r %t -o %t2 -print_atoms | FileCheck %s
#
# Test linker can detect architecture without -arch option.
#
--- !mach-o
arch: x86
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: [ 0xC3 ]
global-symbols:
- name: _foo
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000000
...
Remove trailing whitespace characters. llvm-svn: 235897
2015-04-28 01:18:04 +08:00
# CHECK: defined-atoms:
[mach-o] Let darwin driver infer arch from .o files if -arch not used. Mach-O has a "fat" (or "universal") variant where the same contents built for different architectures are concatenated into one file with a table-of-contents header at the start. But this leaves a dilemma for the linker - which architecture to use. Normally, the linker command line -arch is used to force which slice of any fat files are used. The clang compiler always passes -arch to the linker when invoking it. But some Makefiles invoke the linker directly and don’t specify the -arch option. For those cases, the linker scans all input files in command line order and finds the first non-fat object file. Whatever architecture it is becomes the architecture for the link. llvm-svn: 217189
2014-09-05 04:08:30 +08:00
# CHECK: - name: _foo