llvm-project

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# REQUIRES: x86
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# RUN: split-file %s %t --no-leading-lines
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# RUN: llvm-mc -filetype obj -triple x86_64-apple-darwin %t/test.s -o %t/test.o
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# RUN: %lld -o %t/test -lSystem -lc++ -framework CoreFoundation %t/libNested.tbd %t/libTlvWeak.tbd %t/test.o
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# RUN: llvm-objdump --bind --weak-bind --no-show-raw-insn -d -r %t/test | FileCheck %s
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## Targeting an arch not listed in the tbd should fallback to an ABI compatible arch
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# RUN: %lld -arch x86_64h -o %t/test-compat -lSystem -lc++ -framework CoreFoundation %t/libNested.tbd %t/libTlvWeak.tbd %t/test.o
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# RUN: llvm-objdump --bind --weak-bind --no-show-raw-insn -d -r %t/test-compat | FileCheck %s
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## Setting LD_DYLIB_CPU_SUBTYPES_MUST_MATCH forces exact target arch match.
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# RUN: env LD_DYLIB_CPU_SUBTYPES_MUST_MATCH=1 not %lld -arch x86_64h -o /dev/null -lSystem -lc++ -framework \
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# RUN:   CoreFoundation %t/libNested.tbd %t/libTlvWeak.tbd %t/test.o 2>&1 | FileCheck %s -check-prefix=INCOMPATIBLE
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# INCOMPATIBLE:      error: {{.*}}libSystem.tbd(/usr/lib/libSystem.dylib) is incompatible with x86_64h (macOS11.0)
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# INCOMPATIBLE-NEXT: error: {{.*}}libc++.tbd(/usr/lib/libc++.dylib) is incompatible with x86_64h (macOS11.0)
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# INCOMPATIBLE-NEXT: error: {{.*}}CoreFoundation.tbd(/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation) is incompatible with x86_64h (macOS11.0)
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## libReexportSystem.tbd tests that we can reference symbols from a 2nd-level
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## tapi document, re-exported by a top-level tapi document, which itself is
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## re-exported by another top-level tapi document.
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# RUN: %lld -o %t/with-reexport -lSystem -L%t %t/libReexportNested.tbd %t/libTlvWeak.tbd -lc++ -framework CoreFoundation %t/test.o
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# RUN: llvm-objdump --bind --weak-bind --no-show-raw-insn -d -r %t/with-reexport | FileCheck %s
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# CHECK: Bind table:
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 CoreFoundation _OBJC_CLASS_$_NSObject
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 CoreFoundation _OBJC_METACLASS_$_NSObject
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 CoreFoundation _OBJC_IVAR_$_NSConstantArray._count
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 CoreFoundation _OBJC_EHTYPE_$_NSException
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 libc++abi      ___gxx_personality_v0
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 libNested3     _deeply_nested
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 libTlvWeak     _weak
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# CHECK-DAG: __DATA __thread_ptrs {{.*}} pointer 0 libTlvWeak _tlv
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# CHECK: Weak bind table:
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# CHECK-DAG: __DATA __data {{.*}} pointer 0 _weak
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# RUN: llvm-otool -l %t/test | FileCheck --check-prefix=LOAD %s
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# RUN: llvm-otool -l %t/with-reexport | \
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# RUN:     FileCheck --check-prefixes=LOAD,LOAD-REEXPORT %s
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# LOAD:          cmd LC_LOAD_DYLIB
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# LOAD-NEXT:               cmdsize
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# LOAD-NEXT:                  name /usr/lib/libSystem.dylib
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# LOAD-NEXT:            time stamp
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# LOAD-NEXT:       current version 1.1.1
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# LOAD-NEXT: compatibility version
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# LOAD-REEXPORT:          cmd LC_LOAD_DYLIB
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# LOAD-REEXPORT-NEXT:               cmdsize
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# LOAD-REEXPORT-NEXT:                  name /usr/lib/libReexportNested.dylib
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# LOAD-REEXPORT-NEXT:            time stamp
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# LOAD-REEXPORT-NEXT:       current version 1.0.0
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# LOAD-REEXPORT-NEXT: compatibility version
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#--- test.s
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.section __TEXT,__text
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.global _main
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_main:
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  mov _tlv@TLVP(%rip), %rax
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  ret
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.data
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  .quad _OBJC_CLASS_$_NSObject
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  .quad _OBJC_METACLASS_$_NSObject
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  .quad _OBJC_IVAR_$_NSConstantArray._count
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  .quad _OBJC_EHTYPE_$_NSException
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## This symbol is defined in an inner TAPI document within libNested.tbd.
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  .quad _deeply_nested
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## This symbol is defined in libc++abi.tbd, but we are linking test.o against
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## libc++.tbd (which re-exports libc++abi). Linking against this symbol verifies
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## that .tbd file re-exports can refer not just to TAPI documents within the
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## same .tbd file, but to other on-disk files as well.
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  .quad ___gxx_personality_v0
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  .quad _weak
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## This tests that we can locate a symbol re-exported by a child of a TAPI
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## document.
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#--- libNested.tbd
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--- !tapi-tbd-v3
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archs:            [ x86_64 ]
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uuids:            [ 'x86_64: 00000000-0000-0000-0000-000000000000' ]
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platform:         macosx
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install-name:     '/usr/lib/libNested.dylib'
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exports:
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  - archs:      [ x86_64 ]
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    re-exports: [ '/usr/lib/libNested2.dylib' ]
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--- !tapi-tbd-v3
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archs:            [ x86_64 ]
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uuids:            [ 'x86_64: 00000000-0000-0000-0000-000000000001' ]
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platform:         macosx
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install-name:     '/usr/lib/libNested2.dylib'
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exports:
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  - archs:      [ x86_64 ]
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    re-exports: [ '/usr/lib/libNested3.dylib' ]
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--- !tapi-tbd-v3
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archs:            [ x86_64 ]
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uuids:            [ 'x86_64: 00000000-0000-0000-0000-000000000002' ]
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platform:         macosx
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install-name:     '/usr/lib/libNested3.dylib'
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exports:
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  - archs:      [ x86_64 ]
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    symbols:    [ _deeply_nested ]
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...
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#--- libReexportNested.tbd
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--- !tapi-tbd-v3
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archs:            [ i386, x86_64 ]
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uuids:            [ 'i386: 00000000-0000-0000-0000-000000000000', 'x86_64: 00000000-0000-0000-0000-000000000001' ]
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platform:         macosx
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install-name:     '/usr/lib/libReexportNested.dylib'
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exports:
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  - archs:      [ i386, x86_64 ]
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    re-exports: [ 'libNested.dylib' ]
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...
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#--- libTlvWeak.tbd
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--- !tapi-tbd
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tbd-version:      4
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targets:          [ x86_64-macos ]
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uuids:
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  - target:       x86_64-macos
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    value:        00000000-0000-0000-0000-000000000000
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install-name:     '/usr/lib/libTlvWeak.dylib'
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current-version:  0001.001.1
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exports:                            # Validate weak & thread-local symbols 
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  - targets:      [ x86_64-macos ]
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    weak-symbols: [ _weak ]
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    thread-local-symbols: [ _tlv ]
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...
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