entry-symbol.s
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# REQUIRES: x86
# RUN: split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/not-main.s -o %t/not-main.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/libfoo.s -o %t/libfoo.o
# RUN: %lld -lSystem -dylib %t/libfoo.o -o %t/libfoo.dylib
# RUN: %lld -o %t/not-main %t/not-main.o -e _not_main
# RUN: llvm-objdump --macho --all-headers --syms %t/not-main | FileCheck %s
# CHECK-LABEL: SYMBOL TABLE
# CHECK-NEXT: {{0*}}[[#%x, ENTRY_ADDR:]] {{.*}} __TEXT,__text _not_main
# CHECK: cmd LC_MAIN
# CHECK-NEXT: cmdsize 24
# CHECK-NEXT: entryoff [[#ENTRYOFF:]]
# CHECK: sectname __text
# CHECK-NEXT: segname __TEXT
## Note: the following checks assume that the entry symbol is right at the
## beginning of __text.
# CHECK-NEXT: addr 0x{{0*}}[[#ENTRY_ADDR]]
# CHECK-NEXT: size
# CHECK-NEXT: offset [[#ENTRYOFF]]
# RUN: %lld -lSystem -o %t/dysym-main %t/not-main.o %t/libfoo.dylib -e _dysym_main
# RUN: llvm-objdump --macho --all-headers --indirect-symbols --lazy-bind %t/dysym-main | FileCheck %s --check-prefix=DYSYM
# DYSYM-LABEL: Indirect symbols for (__TEXT,__stubs) 1 entries
# DYSYM-NEXT: address index name
# DYSYM-NEXT: 0x[[#%x,DYSYM_ENTRY_ADDR:]] [[#]] _dysym_main
# DYSYM-LABEL: cmd LC_MAIN
# DYSYM-NEXT: cmdsize 24
# DYSYM-NEXT: entryoff [[#%u, DYSYM_ENTRY_ADDR - 0x100000000]]
# DYSYM-LABEL: Lazy bind table:
# DYSYM-NEXT: segment section address dylib symbol
# DYSYM-NEXT: __DATA __la_symbol_ptr {{.*}} libfoo _dysym_main
# RUN: %lld -lSystem -o %t/weak-dysym-main %t/not-main.o %t/libfoo.dylib -e _weak_dysym_main
# RUN: llvm-objdump --macho --all-headers --indirect-symbols --bind --weak-bind %t/weak-dysym-main | FileCheck %s --check-prefix=WEAK-DYSYM
# WEAK-DYSYM-LABEL: Indirect symbols for (__TEXT,__stubs) 1 entries
# WEAK-DYSYM-NEXT: address index name
# WEAK-DYSYM-NEXT: 0x[[#%x,DYSYM_ENTRY_ADDR:]] [[#]] _weak_dysym_main
# WEAK-DYSYM: cmd LC_MAIN
# WEAK-DYSYM-NEXT: cmdsize 24
# WEAK-DYSYM-NEXT: entryoff [[#%u, DYSYM_ENTRY_ADDR - 0x100000000]]
# WEAK-DYSYM-LABEL: Bind table:
# WEAK-DYSYM-NEXT: segment section address type addend dylib symbol
# WEAK-DYSYM: __DATA __la_symbol_ptr {{.*}} pointer 0 libfoo _weak_dysym_main
# WEAK-DYSYM-LABEL: Weak bind table:
# WEAK-DYSYM-NEXT: segment section address type addend symbol
# WEAK-DYSYM-NEXT: __DATA __la_symbol_ptr {{.*}} pointer 0 _weak_dysym_main
# RUN: not %lld -o /dev/null %t/not-main.o -e _missing 2>&1 | FileCheck %s --check-prefix=UNDEFINED
# UNDEFINED: error: undefined symbol: _missing
# RUN: not %lld -o /dev/null %t/not-main.o 2>&1 | FileCheck %s --check-prefix=DEFAULT-ENTRY
# DEFAULT-ENTRY: error: undefined symbol: _main
#--- libfoo.s
.text
.global _dysym_main, _weak_dysym_main
.weak_definition _weak_dysym_main
_dysym_main:
ret
_weak_dysym_main:
ret
#--- not-main.s
.text
.global _not_main
_not_main:
ret