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sub-library.s 
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# REQUIRES: x86
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# RUN: rm -rf %t; mkdir -p %t
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## Create a libsuper that has libgoodbye as a sub-library, which in turn has
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## libhello as another sub-library.
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libhello.s \
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# RUN:   -o %t/libhello.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libgoodbye.s \
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# RUN:   -o %t/libgoodbye.o
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# RUN: echo "" | llvm-mc -filetype=obj -triple=x86_64-apple-darwin -o %t/libsuper.o
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# RUN: %lld -dylib %t/libhello.o -o %t/libhello.dylib
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# RUN: %lld -dylib -L%t -sub_library libhello -lhello \
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# RUN:   %t/libgoodbye.o -o %t/libgoodbye.dylib
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# RUN: %lld -dylib -L%t -sub_library libgoodbye -lgoodbye -install_name \
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# RUN:   @executable_path/libsuper.dylib %t/libsuper.o -o %t/libsuper.dylib
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## Check that they have the appropriate LC_REEXPORT_DYLIB commands, and that
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## NO_REEXPORTED_DYLIBS is (un)set as appropriate.
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# RUN: llvm-otool -hv %t/libhello.dylib | \
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# RUN:     FileCheck --check-prefix=HELLO-HEADERS %s
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# HELLO-HEADERS: NO_REEXPORTED_DYLIBS
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# RUN: llvm-otool -l %t/libgoodbye.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/libhello.dylib
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# RUN: llvm-otool -l %t/libsuper.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/libgoodbye.dylib
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# RUN: %lld -dylib -L%t -reexport-lgoodbye -install_name \
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# RUN:   @executable_path/libsuper.dylib %t/libsuper.o -o %t/libsuper.dylib
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# RUN: llvm-otool -l %t/libsuper.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/libgoodbye.dylib
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# RUN: %lld -dylib -reexport_library %t/libgoodbye.dylib -install_name \
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# RUN:   @executable_path/libsuper.dylib %t/libsuper.o -o %t/libsuper.dylib
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# RUN: llvm-otool -l %t/libsuper.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/libgoodbye.dylib
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# REEXPORT-HEADERS-NOT: NO_REEXPORTED_DYLIBS
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# REEXPORT-HEADERS:     cmd     LC_REEXPORT_DYLIB
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# REEXPORT-HEADERS-NOT: Load command
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# REEXPORT-HEADERS:     name    [[PATH]]
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/sub-library.o
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# RUN: %lld -o %t/sub-library -L%t -lsuper %t/sub-library.o
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# RUN: llvm-objdump --macho --bind %t/sub-library | FileCheck %s
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# CHECK-LABEL: Bind table:
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# CHECK-DAG:   __DATA_CONST __got {{.*}} libsuper _hello_world
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# CHECK-DAG:   __DATA_CONST __got {{.*}} libsuper _goodbye_world
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## Check that we fail gracefully if the sub-library is missing
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# RUN: not %lld -dylib -o %t/sub-library -sub_library libmissing %t/sub-library.o 2>&1 \
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# RUN:   | FileCheck %s --check-prefix=MISSING-SUB-LIBRARY
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# MISSING-SUB-LIBRARY: error: -sub_library libmissing does not match a supplied dylib
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# RUN: rm -f %t/libgoodbye.dylib
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# RUN: not %lld -o %t/sub-library -L%t -lsuper %t/sub-library.o 2>&1 \
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# RUN:  | FileCheck %s --check-prefix=MISSING-REEXPORT -DDIR=%t
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# MISSING-REEXPORT: error: {{.*}}libsuper.dylib: unable to locate re-export with install name [[DIR]]/libgoodbye.dylib
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## We can match dylibs without extensions too.
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# RUN: mkdir -p %t/Hello.framework
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# RUN: %lld -dylib %t/libhello.o -o %t/Hello.framework/Hello
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# RUN: %lld -dylib -o %t/libgoodbye2.dylib -sub_library Hello %t/Hello.framework/Hello %t/libgoodbye.o
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# RUN: llvm-otool -l %t/libgoodbye2.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/Hello.framework/Hello
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## -sub_umbrella works almost identically...
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# RUN: %lld -dylib -o %t/libgoodbye3.dylib -sub_umbrella Hello %t/Hello.framework/Hello %t/libgoodbye.o
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# RUN: llvm-otool -l %t/libgoodbye3.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/Hello.framework/Hello
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# RUN: %lld -dylib -o %t/libgoodbye3.dylib -F %t -framework Hello -sub_umbrella Hello %t/libgoodbye.o
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# RUN: llvm-otool -l %t/libgoodbye3.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/Hello.framework/Hello
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# RUN: %lld -dylib -o %t/libgoodbye3.dylib -F %t -reexport_framework Hello %t/libgoodbye.o
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# RUN: llvm-otool -l %t/libgoodbye3.dylib | FileCheck %s \
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# RUN:   --check-prefix=REEXPORT-HEADERS -DPATH=%t/Hello.framework/Hello
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## But it doesn't match .dylib extensions:
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# RUN: not %lld -dylib -L%t -sub_umbrella libhello -lhello %t/libgoodbye.o \
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# RUN:   -o %t/libgoodbye.dylib 2>&1 | FileCheck %s --check-prefix=MISSING-FRAMEWORK
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# MISSING-FRAMEWORK: error: -sub_umbrella libhello does not match a supplied dylib
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## Check that -F (but not -L) can override the search path in install_name for
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## frameworks.
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# RUN: mkdir -p %t/Hello2.framework
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# RUN: %lld -dylib %t/libhello.o \
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# RUN:   -install_name /path/to/Hello2.framework/Hello2 \
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# RUN:   -o %t/Hello2.framework/Hello2
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# RUN: %lld -dylib -o %t/libgoodbye4.dylib %t/libgoodbye.o \
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# RUN:   -reexport_library %t/Hello2.framework/Hello2
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# RUN: not %lld -lSystem -o %t/hello %t/libgoodbye4.dylib %t/sub-library.o 2>&1 \
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# RUN:   | FileCheck %s --check-prefix=NOTFOUND
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# RUN: not %lld -lSystem -o %t/hello -L%t %t/libgoodbye4.dylib %t/sub-library.o 2>&1 \
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# RUN:   | FileCheck %s --check-prefix=NOTFOUND
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# NOTFOUND: unable to locate re-export with install name /path/to/Hello2.framework/Hello2
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# RUN: %lld -lSystem -o %t/hello -F%t %t/libgoodbye4.dylib %t/sub-library.o
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## Check that -L (but not -F) can override the search path in install_name for
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## libraries.
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# RUN: %lld -dylib %t/libhello.o \
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# RUN:   -install_name /path/to/libhello2.dylib \
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# RUN:   -o %t/libhello2.dylib
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# RUN: %lld -dylib -o %t/libgoodbye5.dylib %t/libgoodbye.o \
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# RUN:   -reexport_library %t/libhello2.dylib
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# RUN: not %lld -lSystem -o %t/hello %t/libgoodbye5.dylib %t/sub-library.o 2>&1 \
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# RUN:   | FileCheck %s --check-prefix=NOTFOUND2
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# RUN: not %lld -lSystem -o %t/hello -F%t %t/libgoodbye5.dylib %t/sub-library.o 2>&1 \
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# RUN:   | FileCheck %s --check-prefix=NOTFOUND2
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# NOTFOUND2: unable to locate re-export with install name /path/to/libhello2.dylib
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# RUN: %lld -lSystem -o %t/hello -L%t %t/libgoodbye5.dylib %t/sub-library.o
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.text
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.globl _main
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_main:
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  movl $0x2000004, %eax # write() syscall
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  mov $1, %rdi # stdout
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  movq _hello_world@GOTPCREL(%rip), %rsi
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  mov $13, %rdx # length of str
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  syscall
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  mov $0, %rax
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  movl $0x2000004, %eax # write() syscall
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  mov $1, %rdi # stdout
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  movq _goodbye_world@GOTPCREL(%rip), %rsi
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  mov $15, %rdx # length of str
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  syscall
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  mov $0, %rax
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  ret
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