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# REQUIRES: x86
# RUN: rm -rf %t; split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libfoo.s -o %t/libfoo.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/nonweakdef.s -o %t/nonweakdef.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/weakdef.s -o %t/weakdef.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/common.s -o %t/common.o
# RUN: %lld -dylib %t/libfoo.o -o %t/libfoo.dylib
## Check that non-weak defined symbols override weak dylib symbols.
# RUN: %lld %t/nonweakdef.o -L%t -lfoo -o %t/nonweakdef -lSystem
# RUN: llvm-objdump --macho --weak-bind %t/nonweakdef | FileCheck %s
## Test loading the dylib before the obj file.
# RUN: %lld -L%t -lfoo %t/nonweakdef.o -o %t/nonweakdef -lSystem
# RUN: llvm-objdump --macho --weak-bind %t/nonweakdef | FileCheck %s
# CHECK: Weak bind table:
# CHECK-NEXT: segment section address type addend symbol
# CHECK-NEXT: strong _weak_in_dylib
# CHECK-EMPTY:
## Check that weak defined symbols do not override weak dylib symbols.
# RUN: %lld %t/weakdef.o -L%t -lfoo -o %t/weakdef -lSystem
# RUN: llvm-objdump --macho --weak-bind %t/weakdef | FileCheck %s --check-prefix=NO-WEAK-OVERRIDE
## Test loading the dylib before the obj file.
# RUN: %lld -L%t -lfoo %t/weakdef.o -o %t/weakdef -lSystem
# RUN: llvm-objdump --macho --weak-bind %t/weakdef | FileCheck %s --check-prefix=NO-WEAK-OVERRIDE
# NO-WEAK-OVERRIDE: Weak bind table:
# NO-WEAK-OVERRIDE-NEXT: segment section address type addend symbol
# NO-WEAK-OVERRIDE-EMPTY:
## Check that common symbols take precedence over weak dylib symbols, but do not
## generate an overriding weak binding.
# RUN: %lld -L%t -lfoo %t/common.o -o %t/common -lSystem
# RUN: llvm-objdump --macho --weak-bind %t/common | FileCheck %s --check-prefix=NO-WEAK-OVERRIDE
# RUN: llvm-objdump --syms %t/common | FileCheck %s --check-prefix=COMMON
# COMMON-DAG: g O __DATA,__common _nonweak_in_dylib
# COMMON-DAG: g O __DATA,__common _weak_in_dylib
#--- libfoo.s
.globl _weak_in_dylib, _nonweak_in_dylib
.weak_definition _weak_in_dylib
_weak_in_dylib:
_nonweak_in_dylib:
#--- nonweakdef.s
.globl _main, _weak_in_dylib, _nonweak_in_dylib
_weak_in_dylib:
_nonweak_in_dylib:
_main:
ret
#--- weakdef.s
.globl _main, _weak_in_dylib, _nonweak_in_dylib
.weak_definition _weak_in_dylib, _nonweak_in_dylib
_weak_in_dylib:
_nonweak_in_dylib:
_main:
ret
#--- common.s
.globl _main
.comm _weak_in_dylib, 1
.comm _nonweak_in_dylib, 1
_main:
ret
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