67090e3446
This flag is the default, so in ld64 it is not implemented, but it can be useful to negate previous -all_load arguments. Specifically if your build system has some global linker flags, that you may want to negate for specific links. We use something like this today to make sure some C++ symbols are automatically discovered for all links, which passing -all_load hides. Differential Revision: https://reviews.llvm.org/D117629
67 lines
1.8 KiB
ArmAsm
67 lines
1.8 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t; split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/2.s -o %t/2.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/3.s -o %t/3.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/4.s -o %t/4.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/main.s -o %t/main.o
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# RUN: llvm-ar rcs %t/test.a %t/2.o %t/3.o %t/4.o
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# RUN: %lld %t/main.o %t/test.a -o %t/test.out
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## TODO: Run llvm-nm -p to validate symbol order
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# RUN: llvm-nm %t/test.out | FileCheck %s
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# CHECK: T _bar
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# CHECK: T _boo
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# CHECK: T _main
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## Linking with the archive first in the command line shouldn't change anything
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# RUN: %lld %t/test.a %t/main.o -o %t/test.out
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# RUN: llvm-nm %t/test.out | FileCheck %s --check-prefix ARCHIVE-FIRST
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# ARCHIVE-FIRST: T _bar
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# ARCHIVE-FIRST: T _boo
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# ARCHIVE-FIRST: T _main
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# RUN: llvm-nm %t/test.out | FileCheck %s --check-prefix VISIBLE
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# VISIBLE-NOT: T _undefined
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# VISIBLE-NOT: T _unused
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# RUN: %lld %t/test.a %t/main.o -o %t/all-load -noall_load -all_load
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# RUN: llvm-nm %t/all-load | FileCheck %s --check-prefix ALL-LOAD
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# ALL-LOAD: T _bar
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# ALL-LOAD: T _boo
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# ALL-LOAD: T _main
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# ALL-LOAD: T _unused
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# RUN: %lld %t/test.a %t/main.o -o %t/no-all-load -all_load -noall_load
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# RUN: llvm-nm %t/no-all-load | FileCheck %s --check-prefix NO-ALL-LOAD
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# RUN: %lld %t/test.a %t/main.o -o %t/no-all-load-only -noall_load
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# RUN: llvm-nm %t/no-all-load-only | FileCheck %s --check-prefix NO-ALL-LOAD
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# NO-ALL-LOAD-NOT: T _unused
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## Multiple archives defining the same symbols aren't an issue, due to lazy
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## loading
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# RUN: cp %t/test.a %t/test2.a
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# RUN: %lld %t/test.a %t/test2.a %t/main.o -o /dev/null
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#--- 2.s
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.globl _boo
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_boo:
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ret
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#--- 3.s
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.globl _bar
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_bar:
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ret
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#--- 4.s
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.globl _undefined, _unused
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_unused:
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ret
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#--- main.s
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.globl _main
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_main:
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callq _boo
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callq _bar
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ret
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