llvm-project

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# 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-macos %t/live.s -o %t/live.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos %t/dead.s -o %t/dead.o
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# RUN: not %lld -undefined bogus -o /dev/null %t/live.o 2>&1 | \
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# RUN:     FileCheck %s -check-prefix=UNKNOWN
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# RUN: not %lld -undefined error -o /dev/null %t/live.o 2>&1 | \
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# RUN:     FileCheck %s -check-prefix=ERROR
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# RUN: not %lld -undefined warning -o /dev/null %t/live.o 2>&1 | \
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# RUN:     FileCheck %s -check-prefix=INVAL-WARNING
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# RUN: not %lld -undefined suppress -o /dev/null %t/live.o 2>&1 | \
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# RUN:     FileCheck %s -check-prefix=INVAL-SUPPRESS
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# RUN: %lld -undefined dynamic_lookup -lSystem -o %t/live.out %t/live.o 2>&1 | count 0
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# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
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# RUN:     | FileCheck --check-prefix=BIND %s
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# RUN: %no-fatal-warnings-lld -lSystem -flat_namespace -undefined warning \
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# RUN:     -o %t/live.out %t/live.o 2>&1 | \
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# RUN:     FileCheck %s -check-prefix=WARNING
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# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
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# RUN:     | FileCheck --check-prefix=BIND %s
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# RUN: %lld -flat_namespace -lSystem -undefined suppress -o %t/live.out %t/live.o \
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# RUN:     2>&1 | count 0
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# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
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# RUN:     | FileCheck --check-prefix=BIND %s
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# RUN: %lld -flat_namespace -lSystem -undefined dynamic_lookup -o \
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# RUN:     %t/live.out %t/live.o 2>&1 | count 0
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# RUN: llvm-objdump --macho --lazy-bind %t/live.out \
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# RUN:     | FileCheck --check-prefix=BIND %s
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## Undefined symbols in dead code should not raise an error iff
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## -dead_strip is enabled.
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# RUN: not %lld -dylib -undefined error -o /dev/null %t/dead.o 2>&1 \
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# RUN:     | FileCheck --check-prefix=ERROR %s
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# RUN: not %lld -dylib -dead_strip -undefined error -o /dev/null %t/live.o 2>&1\
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# RUN:     | FileCheck --check-prefix=ERROR %s
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# RUN: %lld -dylib -dead_strip -undefined error -o /dev/null %t/dead.o
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# ERROR: error: undefined symbol: _bar
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# ERROR-NEXT: >>> referenced by
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# INVAL-WARNING: error: '-undefined warning' only valid with '-flat_namespace'
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# INVAL-WARNING-NOT: error: undefined symbol: _bar
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# INVAL-SUPPRESS: error: '-undefined suppress' only valid with '-flat_namespace'
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# INVAL-SUPPRESS-NOT: error: undefined symbol: _bar
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# WARNING: warning: undefined symbol: _bar
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# WARNING-NEXT: >>> referenced by
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# UNKNOWN: unknown -undefined TREATMENT 'bogus'
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# UNKNOWN-NEXT: error: undefined symbol: _bar
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# UNKNOWN-NEXT: >>> referenced by
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# BIND: Lazy bind table:
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# BIND: __DATA   __la_symbol_ptr    0x{{[0-9a-f]*}} flat-namespace   _bar
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#--- live.s
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.globl _main
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_main:
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  callq _bar
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  ret
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#--- dead.s
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_dead:
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  callq _bar
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  ret
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