lld/test/MachO/x86-64-stubs.s

# REQUIRES: x86
# RUN: rm -rf %t; mkdir -p %t
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libhello.s \
# RUN:   -o %t/libhello.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libgoodbye.s \
# RUN:   -o %t/libgoodbye.o
# RUN: %lld -dylib \
# RUN:   -install_name @executable_path/libhello.dylib %t/libhello.o \
# RUN:   -o %t/libhello.dylib
# RUN: %lld -dylib \
# RUN:   -install_name @executable_path/libgoodbye.dylib %t/libgoodbye.o \
# RUN:   -o %t/libgoodbye.dylib

# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/dylink-lazy.o
# RUN: %lld -no_pie -data_const -o %t/dylink-lazy-no-pie \
# RUN:   -L%t -lhello -lgoodbye %t/dylink-lazy.o -lSystem

## When looking at the __stubs section alone, we are unable to easily tell which
## symbol each entry points to. So we call objdump twice in order to get the
## disassembly of __text and the bind tables first, which allow us to check for
## matching entries in __stubs.
# RUN: llvm-objdump -d --no-show-raw-insn --syms --rebase --bind --lazy-bind %t/dylink-lazy-no-pie > %t/objdump-no-pie
# RUN: llvm-objdump -D --no-show-raw-insn %t/dylink-lazy-no-pie >> %t/objdump-no-pie
# RUN: FileCheck %s --check-prefixes=CHECK,NO-PIE < %t/objdump-no-pie

# RUN: %lld -o %t/dylink-lazy -L%t -lhello -lgoodbye %t/dylink-lazy.o -lSystem
# RUN: llvm-objdump -d --no-show-raw-insn --syms --rebase --bind --lazy-bind %t/dylink-lazy > %t/objdump
# RUN: llvm-objdump -D --no-show-raw-insn %t/dylink-lazy >> %t/objdump
# RUN: FileCheck %s --check-prefixes=CHECK,PIE < %t/objdump

# CHECK-LABEL: SYMBOL TABLE:
# CHECK:       {{0*}}[[#%x, IMGLOADER:]] l {{.*}} __DATA,__data __dyld_private

# CHECK-LABEL: Disassembly of section __TEXT,__text:
# CHECK:         callq 0x[[#%x, HELLO_STUB:]]
# CHECK-NEXT:    callq 0x[[#%x, GOODBYE_STUB:]]

## Check that the rebase table is empty.
# NO-PIE-LABEL: Rebase table:
# NO-PIE-NEXT:  segment section address type

# PIE-LABEL:   Rebase table:
# PIE-NEXT:    segment  section            address           type
# PIE-NEXT:    __DATA   __la_symbol_ptr    0x[[#%X, ADDR:]]  pointer
# PIE-NEXT:    __DATA   __la_symbol_ptr    0x[[#ADDR + 8]]   pointer

# CHECK-EMPTY:
# CHECK-NEXT:  Bind table:
# CHECK:       __DATA_CONST __got 0x[[#%x, BINDER:]] pointer 0 libSystem dyld_stub_binder

# CHECK-LABEL: Lazy bind table:
# CHECK-DAG:   __DATA __la_symbol_ptr 0x{{0*}}[[#%x, HELLO_LAZY_PTR:]] libhello _print_hello
# CHECK-DAG:   __DATA __la_symbol_ptr 0x{{0*}}[[#%x, GOODBYE_LAZY_PTR:]] libgoodbye _print_goodbye

# CHECK-LABEL: Disassembly of section __TEXT,__stubs:
# CHECK-DAG:     [[#%x, HELLO_STUB]]:   jmpq *[[#%u, HELLO_LAZY_PTR - HELLO_STUB - 6]](%rip)
# CHECK-DAG:     [[#%x, GOODBYE_STUB]]: jmpq *[[#%u, GOODBYE_LAZY_PTR - GOODBYE_STUB - 6]](%rip)

# CHECK-LABEL: Disassembly of section __TEXT,__stub_helper:
# CHECK:         {{0*}}[[#%x, STUB_HELPER_ENTRY:]] <__stub_helper>:
# CHECK-NEXT:    leaq [[#%u, IMGLOADER - STUB_HELPER_ENTRY - 7]](%rip), %r11
# CHECK-NEXT:    pushq %r11
# CHECK-NEXT:    jmpq *[[#%u, BINDER_OFF:]](%rip)
# CHECK-NEXT:    [[#%x, BINDER - BINDER_OFF]]: nop
# CHECK-NEXT:    pushq $0
# CHECK-NEXT:    jmp 0x[[#STUB_HELPER_ENTRY]]
# CHECK-NEXT:    pushq $21
# CHECK-NEXT:    jmp 0x[[#STUB_HELPER_ENTRY]]

.text
.globl _main

_main:
  sub $8, %rsp # 16-byte-align the stack; dyld checks for this
  callq _print_hello
  callq _print_goodbye
  add $8, %rsp
  ret