llvm-project

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# REQUIRES: x86
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# RUN: rm -rf %t; mkdir -p %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libhello.s \
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# RUN:   -o %t/libhello.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libgoodbye.s \
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# RUN:   -o %t/libgoodbye.o
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# RUN: %lld -dylib \
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# RUN:   -install_name @executable_path/libhello.dylib %t/libhello.o \
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# RUN:   -o %t/libhello.dylib
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# RUN: %lld -dylib \
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# RUN:   -install_name @executable_path/libgoodbye.dylib %t/libgoodbye.o \
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# RUN:   -o %t/libgoodbye.dylib
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/dylink-lazy.o
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# RUN: %lld -no_pie -data_const -o %t/dylink-lazy-no-pie \
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# RUN:   -L%t -lhello -lgoodbye %t/dylink-lazy.o -lSystem
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## When looking at the __stubs section alone, we are unable to easily tell which
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## symbol each entry points to. So we call objdump twice in order to get the
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## disassembly of __text and the bind tables first, which allow us to check for
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## matching entries in __stubs.
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# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn --syms --rebase --bind --lazy-bind %t/dylink-lazy-no-pie > %t/objdump-no-pie
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# RUN: llvm-objdump --no-print-imm-hex -D --no-show-raw-insn %t/dylink-lazy-no-pie >> %t/objdump-no-pie
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# RUN: FileCheck %s --check-prefixes=CHECK,NO-PIE < %t/objdump-no-pie
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# RUN: %lld -o %t/dylink-lazy -L%t -lhello -lgoodbye %t/dylink-lazy.o -lSystem
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# RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn --syms --rebase --bind --lazy-bind %t/dylink-lazy > %t/objdump
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# RUN: llvm-objdump --no-print-imm-hex -D --no-show-raw-insn %t/dylink-lazy >> %t/objdump
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# RUN: FileCheck %s --check-prefixes=CHECK,PIE < %t/objdump
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# CHECK-LABEL: SYMBOL TABLE:
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# CHECK:       {{0*}}[[#%x, IMGLOADER:]] l {{.*}} __DATA,__data __dyld_private
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# CHECK-LABEL: Disassembly of section __TEXT,__text:
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# CHECK:         callq 0x[[#%x, HELLO_STUB:]]
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# CHECK-NEXT:    callq 0x[[#%x, GOODBYE_STUB:]]
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## Check that the rebase table is empty.
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# NO-PIE-LABEL: Rebase table:
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# NO-PIE-NEXT:  segment section address type
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# PIE-LABEL:   Rebase table:
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# PIE-NEXT:    segment  section            address           type
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# PIE-NEXT:    __DATA   __la_symbol_ptr    0x[[#%X, ADDR:]]  pointer
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# PIE-NEXT:    __DATA   __la_symbol_ptr    0x[[#ADDR + 8]]   pointer
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# CHECK-EMPTY:
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# CHECK-NEXT:  Bind table:
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# CHECK:       __DATA_CONST __got 0x[[#%x, BINDER:]] pointer 0 libSystem dyld_stub_binder
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# CHECK-LABEL: Lazy bind table:
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# CHECK-DAG:   __DATA __la_symbol_ptr 0x{{0*}}[[#%x, HELLO_LAZY_PTR:]] libhello _print_hello
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# CHECK-DAG:   __DATA __la_symbol_ptr 0x{{0*}}[[#%x, GOODBYE_LAZY_PTR:]] libgoodbye _print_goodbye
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# CHECK-LABEL: Disassembly of section __TEXT,__stubs:
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# CHECK-DAG:     [[#%x, HELLO_STUB]]:   jmpq *[[#%u, HELLO_LAZY_PTR - HELLO_STUB - 6]](%rip)
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# CHECK-DAG:     [[#%x, GOODBYE_STUB]]: jmpq *[[#%u, GOODBYE_LAZY_PTR - GOODBYE_STUB - 6]](%rip)
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# CHECK-LABEL: Disassembly of section __TEXT,__stub_helper:
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# CHECK:         {{0*}}[[#%x, STUB_HELPER_ENTRY:]] <__stub_helper>:
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# CHECK-NEXT:    leaq [[#%u, IMGLOADER - STUB_HELPER_ENTRY - 7]](%rip), %r11
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# CHECK-NEXT:    pushq %r11
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# CHECK-NEXT:    jmpq *[[#%u, BINDER_OFF:]](%rip)
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# CHECK-NEXT:    [[#%x, BINDER - BINDER_OFF]]: nop
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# CHECK-NEXT:    pushq $0
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# CHECK-NEXT:    jmp 0x[[#STUB_HELPER_ENTRY]]
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# CHECK-NEXT:    pushq $21
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# CHECK-NEXT:    jmp 0x[[#STUB_HELPER_ENTRY]]
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.text
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.globl _main
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_main:
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  sub $8, %rsp # 16-byte-align the stack; dyld checks for this
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  callq _print_hello
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  callq _print_goodbye
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  add $8, %rsp
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  ret
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