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# REQUIRES: x86
# RUN: rm -rf %t; split-file %s %t
## With -flat_namespace, non-weak extern symbols in dylibs become interposable.
## Check that we generate the correct bindings for them. The test also includes
## other symbol types like weak externs to verify we continue to do the same
## (correct) thing even when `-flat_namespace` is enabled, instead of generating
## spurious bindings.
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-macos -o %t/foo.o %t/foo.s
# RUN: %lld -lSystem -flat_namespace -o %t/foo %t/foo.o
# RUN: %lld -lSystem -flat_namespace -fixup_chains -o %t/chained %t/foo.o
# RUN: %lld -lSystem -dylib -flat_namespace -o %t/foo.dylib %t/foo.o
# RUN: %lld -lSystem -dylib -flat_namespace -fixup_chains -o %t/chained.dylib %t/foo.o
# RUN: %lld -lSystem -bundle -flat_namespace -o %t/foo.bundle %t/foo.o
# RUN: %lld -lSystem -bundle -flat_namespace -fixup_chains -o %t/chained.bundle %t/foo.o
# RUN: llvm-objdump --macho --syms --rebase --bind --lazy-bind --weak-bind %t/foo | \
# RUN: FileCheck %s --check-prefixes=SYMS,EXEC --implicit-check-not=_private_extern
# RUN: llvm-objdump --macho --syms %t/chained >> %t/chained.objdump
# RUN: llvm-objdump --macho --dyld-info %t/chained >> %t/chained.objdump
# RUN: FileCheck %s --check-prefixes=SYMS,CHAINED-EXEC < %t/chained.objdump
# RUN: llvm-objdump --macho --syms %t/chained.dylib >> %t/dylib.objdump
# RUN: llvm-objdump --macho --dyld-info %t/chained.dylib >> %t/dylib.objdump
# RUN: FileCheck %s --check-prefixes=SYMS,CHAINED-DYLIB < %t/dylib.objdump
# RUN: llvm-objdump --macho --syms %t/chained.bundle >> %t/bundle.objdump
# RUN: llvm-objdump --macho --dyld-info %t/chained.bundle >> %t/bundle.objdump
# RUN: FileCheck %s --check-prefixes=SYMS,CHAINED-DYLIB < %t/bundle.objdump
# SYMS: SYMBOL TABLE:
# SYMS-DAG: [[#%x, EXTERN_REF:]] l O __DATA,__data _extern_ref
# SYMS-DAG: [[#%x, LOCAL_REF:]] l O __DATA,__data _local_ref
# SYMS-DAG: [[#%x, WEAK_REF:]] l O __DATA,__data _weak_ref
# SYMS-DAG: [[#%x, TLV_REF:]] g O __DATA,__thread_vars _tlv
## Executables with -flat_namespace don't have interposable externs.
# EXEC: Rebase table:
# EXEC-NEXT: segment section address type
# EXEC-DAG: __DATA __la_symbol_ptr 0x[[#%X, WEAK_LAZY:]] pointer
# EXEC-DAG: __DATA __data 0x[[#%.8X, EXTERN_REF]] pointer
# EXEC-DAG: __DATA __data 0x[[#%.8X, LOCAL_REF]] pointer
# EXEC-DAG: __DATA __data 0x[[#%.8X, WEAK_REF]] pointer
# EXEC-EMPTY:
# EXEC-NEXT: Bind table:
# EXEC-NEXT: segment section address type addend dylib symbol
# EXEC-EMPTY:
# EXEC-NEXT: Lazy bind table:
# EXEC-NEXT: segment section address dylib symbol
# EXEC-EMPTY:
# EXEC-NEXT: Weak bind table:
# EXEC-NEXT: segment section address type addend symbol
# EXEC-NEXT: __DATA __la_symbol_ptr 0x[[#%.8X, WEAK_LAZY]] pointer 0 _weak_extern
# EXEC-NEXT: __DATA __data 0x[[#%.8X, WEAK_REF]] pointer 0 _weak_extern
# EXEC-EMPTY:
# CHAINED-EXEC: dyld information:
# CHAINED-EXEC-NEXT: segment section address pointer type addend dylib symbol/vm address
# CHAINED-EXEC-DAG: __DATA_CONST __got {{.*}} {{.*}} bind 0x0 weak _weak_extern
# CHAINED-EXEC-DAG: __DATA __data 0x[[#%x, EXTERN_REF]] {{.*}} rebase {{.*}}
# CHAINED-EXEC-DAG: __DATA __data 0x[[#%x, WEAK_REF]] {{.*}} bind 0x0 weak _weak_extern
# CHAINED-EXEC-DAG: __DATA __data 0x[[#%x, LOCAL_REF]] {{.*}} rebase {{.*}}
# CHAINED-EXEC-EMPTY:
# DYLIB: Rebase table:
# DYLIB-NEXT: segment section address type
# DYLIB-DAG: __DATA __la_symbol_ptr 0x[[#%X, WEAK_LAZY:]] pointer
# DYLIB-DAG: __DATA __la_symbol_ptr 0x[[#%X, EXTERN_LAZY:]] pointer
# DYLIB-DAG: __DATA __data 0x[[#%.8X, EXTERN_REF]] pointer
# DYLIB-DAG: __DATA __data 0x[[#%.8X, LOCAL_REF]] pointer
# DYLIB-DAG: __DATA __data 0x[[#%.8X, WEAK_REF]] pointer
# DYLIB-DAG: __DATA __thread_ptrs 0x[[#%.8X, TLV_REF]] pointer
# DYLIB-EMPTY:
# DYLIB-NEXT: Bind table:
# DYLIB-NEXT: segment section address type addend dylib symbol
# DYLIB-DAG: __DATA_CONST __got {{.*}} pointer 0 flat-namespace dyld_stub_binder
# DYLIB-DAG: __DATA __data 0x[[#%.8X, EXTERN_REF]] pointer 0 flat-namespace _extern
# DYLIB-DAG: __DATA __thread_ptrs 0x[[#%.8X, TLV_REF]] pointer 0 flat-namespace _tlv
# DYLIB-EMPTY:
# DYLIB-NEXT: Lazy bind table:
# DYLIB-NEXT: segment section address dylib symbol
# DYLIB-NEXT: __DATA __la_symbol_ptr 0x[[#%.8X, EXTERN_LAZY]] flat-namespace _extern
# DYLIB-EMPTY:
# DYLIB-NEXT: Weak bind table:
# DYLIB-NEXT: segment section address type addend symbol
# DYLIB-NEXT: __DATA __la_symbol_ptr 0x[[#%.8X, WEAK_LAZY]] pointer 0 _weak_extern
# DYLIB-NEXT: __DATA __data 0x[[#%.8X, WEAK_REF]] pointer 0 _weak_extern
# DYLIB-EMPTY:
# CHAINED-DYLIB: dyld information:
# CHAINED-DYLIB-NEXT: segment section address pointer type addend dylib symbol/vm address
# CHAINED-DYLIB-DAG: __DATA_CONST __got {{.*}} {{.*}} bind 0x0 weak _weak_extern
# CHAINED-DYLIB-DAG: __DATA_CONST __got {{.*}} {{.*}} bind 0x0 flat-namespace _extern
# CHAINED-DYLIB-DAG: __DATA __data 0x[[#%x, EXTERN_REF]] {{.*}} bind 0x0 flat-namespace _extern
# CHAINED-DYLIB-DAG: __DATA __data 0x[[#%x, WEAK_REF]] {{.*}} bind 0x0 weak _weak_extern
# CHAINED-DYLIB-DAG: __DATA __data 0x[[#%x, LOCAL_REF]] {{.*}} rebase {{.*}}
# CHAINED-DYLIB-DAG: __DATA __thread_ptrs 0x[[#%x, TLV_REF]] {{.*}} bind 0x0 flat-namespace _tlv
# CHAINED-DYLIB-EMPTY:
#--- foo.s
.globl _main, _extern, _weak_extern, _tlv
.weak_definition _weak_extern
.private_extern _private_extern
_extern:
retq
_weak_extern:
retq
_private_extern:
retq
_local:
retq
_main:
callq _extern
callq _weak_extern
callq _private_extern
callq _local
mov _tlv@TLVP(%rip), %rax
retq
.data
_extern_ref:
.quad _extern
_weak_ref:
.quad _weak_extern
_local_ref:
.quad _local
.section __DATA,__thread_vars,thread_local_variables
_tlv:
.subsections_via_symbols
|
