forked from OSchip/llvm-project
147 lines
8.7 KiB
ArmAsm
147 lines
8.7 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t; split-file %s %t
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## This test exercises the various possible combinations of weak and non-weak
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## symbols that get referenced directly by a relocation in an object file.
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/refs-foo.s -o %t/refs-foo.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/weak-refs-foo.s -o %t/weak-refs-foo.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/foo.s -o %t/foo.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/weakfoo.s -o %t/weakfoo.o
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# RUN: %lld -dylib -install_name \
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# RUN: @executable_path/libfoo.dylib %t/foo.o -o %t/libfoo.dylib
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# RUN: %lld -dylib -install_name \
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# RUN: @executable_path/libweakfoo.dylib %t/weakfoo.o -o %t/libweakfoo.dylib
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# RUN: llvm-objdump --macho --exports-trie %t/libweakfoo.dylib | FileCheck %s --check-prefix WEAK-DYLIB-CHECK
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# WEAK-DYLIB-CHECK: _foo [weak_def]
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## Make sure we are using the export trie and not the symbol table when linking
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## against these dylibs.
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# RUN: llvm-strip %t/libfoo.dylib
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# RUN: llvm-strip %t/libweakfoo.dylib
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# RUN: llvm-nm %t/libfoo.dylib 2>&1 | FileCheck %s --check-prefix=NOSYM
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# RUN: llvm-nm %t/libweakfoo.dylib 2>&1 | FileCheck %s --check-prefix=NOSYM
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# NOSYM: no symbols
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# RUN: llvm-ar --format=darwin rcs %t/foo.a %t/foo.o
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# RUN: llvm-ar --format=darwin rcs %t/weakfoo.a %t/weakfoo.o
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## End of input file setup. The following lines check which symbol "wins" when
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## there are multiple definitions.
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# PREFER-NONWEAK-DYLIB: __DATA __la_symbol_ptr 0x{{[0-9a-f]+}} libfoo _foo
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# PREFER-WEAK-OBJECT: O __TEXT,weak _foo
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# PREFER-NONWEAK-OBJECT: O __TEXT,nonweak _foo
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# NO-SYM-NOT: _foo
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## First, we test the cases where the symbols are of the same type (both from a
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## dylib, or both from an archive, etc.)
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##
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## For dylibs and object files, the non-weak symbol always wins. But the weak
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## flag has no effect when we are dealing with two archive symbols.
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# RUN: %lld -lSystem -o %t/weak-nonweak-dylibs -L%t -lweakfoo -lfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-nonweak-dylibs | FileCheck %s --check-prefix=PREFER-NONWEAK-DYLIB
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# RUN: %lld -lSystem -o %t/nonweak-weak-dylibs -L%t -lfoo -lweakfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/nonweak-weak-dylibs | FileCheck %s --check-prefix=PREFER-NONWEAK-DYLIB
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# RUN: %lld -lSystem -o %t/weak-nonweak-objs %t/weakfoo.o %t/foo.o %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-nonweak-objs | FileCheck %s --check-prefix=PREFER-NONWEAK-OBJECT
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# RUN: %lld -lSystem -o %t/nonweak-weak-objs %t/foo.o %t/weakfoo.o %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/nonweak-weak-objs | FileCheck %s --check-prefix=PREFER-NONWEAK-OBJECT
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# RUN: %lld -lSystem -o %t/weak-nonweak-archives %t/weakfoo.a %t/foo.a %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-nonweak-archives | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/nonweak-weak-archives %t/foo.a %t/weakfoo.a %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/nonweak-weak-archives | FileCheck %s --check-prefix=PREFER-NONWEAK-OBJECT
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## The next 5 chunks refs-foo.symbol pairs of different types.
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## (Weak) archive symbols take precedence over weak dylib symbols.
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# RUN: %lld -lSystem -o %t/weak-dylib-weak-ar -L%t -lweakfoo %t/weakfoo.a %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/weak-ar-weak-dylib -L%t %t/weakfoo.a -lweakfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-weak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/weak-dylib-weak-ar -L%t -lweakfoo --start-lib %t/weakfoo.o --end-lib %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/weak-ar-weak-dylib -L%t --start-lib %t/weakfoo.o --end-lib -lweakfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-weak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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## (Weak) archive symbols have the same precedence as dylib symbols.
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# RUN: %lld -lSystem -o %t/weak-ar-nonweak-dylib -L%t %t/weakfoo.a -lfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-nonweak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/nonweak-dylib-weak-ar -L%t -lfoo %t/weakfoo.a %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/nonweak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-NONWEAK-DYLIB
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## Weak defined symbols take precedence over weak dylib symbols.
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# RUN: %lld -lSystem -o %t/weak-dylib-weak-obj -L%t -lweakfoo %t/weakfoo.o %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-dylib-weak-obj | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/weak-obj-weak-dylib -L%t %t/weakfoo.o -lweakfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-obj-weak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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## Weak defined symbols take precedence over dylib symbols.
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# RUN: %lld -lSystem -o %t/weak-obj-nonweak-dylib -L%t %t/weakfoo.o -lfoo %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-obj-nonweak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/nonweak-dylib-weak-obj -L%t -lfoo %t/weakfoo.o %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/nonweak-dylib-weak-obj | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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## Weak defined symbols take precedence over archive symbols.
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# RUN: %lld -lSystem -o %t/weak-obj-nonweak-ar %t/weakfoo.o %t/foo.a %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-obj-nonweak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -lSystem -o %t/nonweak-ar-weak-obj %t/foo.a %t/weakfoo.o %t/refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/nonweak-ar-weak-obj | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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## Regression test: A weak dylib symbol that isn't referenced by an undefined
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## symbol should not cause an archive symbol to get loaded.
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# RUN: %lld -dylib -lSystem -o %t/weak-ar-weak-unref-dylib -L%t %t/weakfoo.a -lweakfoo
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-weak-unref-dylib | FileCheck %s --check-prefix=NO-SYM
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# RUN: %lld -dylib -lSystem -o %t/weak-unref-dylib-weak-ar -L%t -lweakfoo %t/weakfoo.a
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-unref-dylib-weak-ar | FileCheck %s --check-prefix=NO-SYM
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# RUN: %lld -dylib -lSystem -o %t/weak-ar-weak-unref-dylib -L%t --start-lib %t/weakfoo.o --end-lib -lweakfoo
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-weak-unref-dylib | FileCheck %s --check-prefix=NO-SYM
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# RUN: %lld -dylib -lSystem -o %t/weak-unref-dylib-weak-ar -L%t -lweakfoo --start-lib %t/weakfoo.o --end-lib
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-unref-dylib-weak-ar | FileCheck %s --check-prefix=NO-SYM
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## However, weak references are sufficient to cause the archive to be loaded.
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# RUN: %lld -dylib -lSystem -o %t/weak-ar-weak-ref-weak-dylib -L%t %t/weakfoo.a -lweakfoo %t/weak-refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-weak-ref-weak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -dylib -lSystem -o %t/weak-ref-weak-dylib-weak-ar -L%t -lweakfoo %t/weakfoo.a %t/weak-refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ref-weak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -dylib -lSystem -o %t/weak-ref-weak-dylib-weak-ar -L%t -lweakfoo %t/weak-refs-foo.o %t/weakfoo.a
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ref-weak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -dylib -lSystem -o %t/weak-ar-weak-ref-weak-dylib -L%t --start-lib %t/weakfoo.o --end-lib -lweakfoo %t/weak-refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ar-weak-ref-weak-dylib | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -dylib -lSystem -o %t/weak-ref-weak-dylib-weak-ar -L%t -lweakfoo --start-lib %t/weakfoo.o --end-lib %t/weak-refs-foo.o
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ref-weak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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# RUN: %lld -dylib -lSystem -o %t/weak-ref-weak-dylib-weak-ar -L%t -lweakfoo %t/weak-refs-foo.o --start-lib %t/weakfoo.o --end-lib
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# RUN: llvm-objdump --macho --lazy-bind --syms %t/weak-ref-weak-dylib-weak-ar | FileCheck %s --check-prefix=PREFER-WEAK-OBJECT
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#--- foo.s
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.globl _foo
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.section __TEXT,nonweak
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_foo:
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#--- weakfoo.s
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.globl _foo
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.weak_definition _foo
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.section __TEXT,weak
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_foo:
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#--- refs-foo.s
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.globl _main
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_main:
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callq _foo
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ret
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#--- weak-refs-foo.s
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.globl _main
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.weak_reference _foo
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_main:
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callq _foo
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ret
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