derek.holloway
7502bf64a4
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46 lines
1.4 KiB
ArmAsm
46 lines
1.4 KiB
ArmAsm
# REQUIRES: x86
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## This tests that we can link against these synthetic symbols even
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## if they are not in the symbol table.
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# RUN: rm -rf %t; split-file %s %t
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## Test that in a dylib, we can link against __mh_dylib_header
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## (but not in other types of files)
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# RUN: llvm-mc %t/dylib.s -triple=x86_64-apple-macos10.15 -filetype=obj -o %t/dylib.o
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# RUN: %lld -dylib -dead_strip %t/dylib.o -o %t/dylib.out
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# RUN: llvm-objdump -m --syms %t/dylib.out | FileCheck %s --check-prefix DYLIB
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# RUN: not %lld -o /dev/null %t/dylib.o 2>&1 | FileCheck %s --check-prefix ERR-DYLIB
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# DYLIB: SYMBOL TABLE:
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# DYLIB-NEXT: {{[0-9a-f]+}} g F __TEXT,__text _main
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# DYLIB-NEXT-EMPTY:
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# ERR-DYLIB: error: undefined symbol: __mh_dylib_header
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## Test that in an executable, we can link against __mh_execute_header
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# RUN: llvm-mc %t/main.s -triple=x86_64-apple-macos10.15 -filetype=obj -o %t/exec.o
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# RUN: %lld -dead_strip -lSystem %t/exec.o -o %t/exec.out
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## But it would be an error trying to reference __mh_execute_header in a dylib
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# RUN: not %lld -o /dev/null -dylib %t/exec.o 2>&1 | FileCheck %s --check-prefix ERR-EXEC
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# ERR-EXEC: error: undefined symbol: __mh_execute_header
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#--- main.s
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.text
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.globl _main
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_main:
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mov __mh_execute_header@GOTPCREL(%rip), %rax
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ret
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.subsections_via_symbols
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#--- dylib.s
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.text
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.globl _main
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_main:
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mov __mh_dylib_header@GOTPCREL(%rip), %rax
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ret
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.subsections_via_symbols
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