| # REQUIRES: aarch64 |
| |
| # RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %s -o %t.o |
| # RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o |
| # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s |
| # RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o -dead_strip |
| # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s |
| # RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o -objc_stubs_fast |
| # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s |
| # RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o -objc_stubs_small |
| # RUN: llvm-otool -vs __TEXT __stubs %t.out | FileCheck %s --check-prefix=STUB |
| # RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s --check-prefix=SMALL |
| |
| # Unlike arm64-objc-stubs.s, in this test, _objc_msgSend is not defined, |
| # which usually binds with libobjc.dylib. |
| # 1. -objc_stubs_fast: No change as it uses GOT. |
| # 2. -objc_stubs_small: Create a (shared) stub to invoke _objc_msgSend, to minimize the size. |
| |
| # CHECK: Contents of (__TEXT,__objc_stubs) section |
| |
| # CHECK-NEXT: _objc_msgSend$foo: |
| # CHECK-NEXT: adrp x1, 8 ; 0x100008000 |
| # CHECK-NEXT: ldr x1, [x1, #0x10] |
| # CHECK-NEXT: adrp x16, 4 ; 0x100004000 |
| # CHECK-NEXT: ldr x16, [x16] |
| # CHECK-NEXT: br x16 |
| # CHECK-NEXT: brk #0x1 |
| # CHECK-NEXT: brk #0x1 |
| # CHECK-NEXT: brk #0x1 |
| |
| # CHECK-NEXT: _objc_msgSend$length: |
| # CHECK-NEXT: adrp x1, 8 ; 0x100008000 |
| # CHECK-NEXT: ldr x1, [x1, #0x18] |
| # CHECK-NEXT: adrp x16, 4 ; 0x100004000 |
| # CHECK-NEXT: ldr x16, [x16] |
| # CHECK-NEXT: br x16 |
| # CHECK-NEXT: brk #0x1 |
| # CHECK-NEXT: brk #0x1 |
| # CHECK-NEXT: brk #0x1 |
| |
| # CHECK-EMPTY: |
| |
| # STUB: Contents of (__TEXT,__stubs) section |
| # STUB-NEXT: adrp x16, 8 ; 0x100008000 |
| # STUB-NEXT: ldr x16, [x16] |
| # STUB-NEXT: br x16 |
| |
| # SMALL: Contents of (__TEXT,__objc_stubs) section |
| # SMALL-NEXT: _objc_msgSend$foo: |
| # SMALL-NEXT: adrp x1, 8 ; 0x100008000 |
| # SMALL-NEXT: ldr x1, [x1, #0x18] |
| # SMALL-NEXT: b |
| # SMALL-NEXT: _objc_msgSend$length: |
| # SMALL-NEXT: adrp x1, 8 ; 0x100008000 |
| # SMALL-NEXT: ldr x1, [x1, #0x20] |
| # SMALL-NEXT: b |
| |
| .section __TEXT,__objc_methname,cstring_literals |
| lselref1: |
| .asciz "foo" |
| lselref2: |
| .asciz "bar" |
| |
| .section __DATA,__objc_selrefs,literal_pointers,no_dead_strip |
| .p2align 3 |
| .quad lselref1 |
| .quad lselref2 |
| |
| .text |
| |
| .globl _main |
| _main: |
| bl _objc_msgSend$length |
| bl _objc_msgSend$foo |
| bl _objc_msgSend$foo |
| ret |