1 # RUN: llvm-mc -triple=arm64-apple-ios7.0.0 -code-model=small -filetype=obj -o %T/foo.o %s 2 # RUN: llvm-rtdyld -triple=arm64-apple-ios7.0.0 -map-section foo.o,__text=0x10bc0 -verify -check=%s %/T/foo.o 3 4 .section __TEXT,__text,regular,pure_instructions 5 .ios_version_min 7, 0 6 .globl _foo 7 .align 2 8 _foo: 9 movz w0, #0 10 ret 11 12 .globl _test_branch_reloc 13 .align 2 14 15 16 # Test ARM64_RELOC_BRANCH26 relocation. The branch instruction only encodes 26 17 # bits of the 28-bit possible branch range. The lower two bits are always zero 18 # and therefore ignored. 19 # rtdyld-check: decode_operand(br1, 0)[25:0] = (_foo - br1)[27:2] 20 _test_branch_reloc: 21 br1: 22 b _foo 23 ret 24 25 26 # Test ARM64_RELOC_PAGE21 and ARM64_RELOC_PAGEOFF12 relocation. adrp encodes 27 # the PC-relative page (4 KiB) difference between the adrp instruction and the 28 # variable ptr. ldr encodes the offset of the variable within the page. The ldr 29 # instruction perfroms an implicit shift on the encoded immediate (imm<<3). 30 # rtdyld-check: decode_operand(adrp1, 1) = (_ptr[32:12] - adrp1[32:12]) 31 # rtdyld-check: decode_operand(ldr1, 2) = _ptr[11:3] 32 .globl _test_adrp_ldr 33 .align 2 34 _test_adrp_ldr: 35 adrp1: 36 adrp x0, _ptr@PAGE 37 ldr1: 38 ldr x0, [x0, _ptr@PAGEOFF] 39 ret 40 41 # Test ARM64_RELOC_GOT_LOAD_PAGE21 and ARM64_RELOC_GOT_LOAD_PAGEOFF12 42 # relocation. adrp encodes the PC-relative page (4 KiB) difference between the 43 # adrp instruction and the GOT entry for ptr. ldr encodes the offset of the GOT 44 # entry within the page. The ldr instruction perfroms an implicit shift on the 45 # encoded immediate (imm<<3). 46 # rtdyld-check: *{8}(stub_addr(foo.o, __text, _ptr)) = _ptr 47 # rtdyld-check: decode_operand(adrp2, 1) = (stub_addr(foo.o, __text, _ptr)[32:12] - adrp2[32:12]) 48 # rtdyld-check: decode_operand(ldr2, 2) = stub_addr(foo.o, __text, _ptr)[11:3] 49 .globl _test_adrp_ldr 50 .align 2 51 _test_got_adrp_ldr: 52 adrp2: 53 adrp x0, _ptr@GOTPAGE 54 ldr2: 55 ldr x0, [x0, _ptr@GOTPAGEOFF] 56 ret 57 58 # rtdyld-check: decode_operand(add1, 2) = (tgt+8)[11:2] << 2 59 .globl _test_explicit_addend_reloc 60 .align 4 61 _test_explicit_addend_reloc: 62 add1: 63 add x0, x0, tgt@PAGEOFF+8 64 65 .align 3 66 tgt: 67 .long 0 68 .long 0 69 .long 7 70 71 # Test ARM64_RELOC_UNSIGNED relocation. The absolute 64-bit address of the 72 # function should be stored at the 8-byte memory location. 73 # rtdyld-check: *{8}_ptr = _foo 74 .section __DATA,__data 75 .globl _ptr 76 .align 3 77 .fill 4096, 1, 0 78 _ptr: 79 .quad _foo 80 81 # Test ARM64_RELOC_SUBTRACTOR. 82 # rtdyld-check: *{8}_subtractor_result = _test_branch_reloc - _foo 83 _subtractor_result: 84 .quad _test_branch_reloc - _foo 85
