| # REQUIRES: x86 |
| |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o |
| # RUN: %lld -dylib %t.o -o %t.dylib |
| # RUN: obj2yaml %t.dylib | FileCheck %s |
| |
| .text |
| .globl _foo |
| _foo: |
| |
| .data |
| # CHECK: RebaseOpcodes: |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_SET_TYPE_IMM |
| # CHECK-NEXT: Imm: 1 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB |
| # CHECK-NEXT: Imm: 1 |
| # CHECK-NEXT: ExtraData: [ 0x0 ] |
| |
| ## 1/ Single rebases with a gap after them are encoded as REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB. |
| .quad _foo |
| .space 16 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB |
| # CHECK-NEXT: Imm: 0 |
| # CHECK-NEXT: ExtraData: [ 0x10 ] |
| |
| ## 2/ Consecutive rebases are encoded as REBASE_OPCODE_DO_REBASE_IMM_TIMES. |
| .quad _foo |
| .quad _foo |
| .quad _foo |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_IMM_TIMES |
| # CHECK-NEXT: Imm: 3 |
| |
| ## 3/ Gaps smaller than 16 words are encoded as REBASE_OPCODE_ADD_ADDR_IMM_SCALED. |
| .space 120 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_ADD_ADDR_IMM_SCALED |
| # CHECK-NEXT: Imm: 15 |
| |
| ## 4/ Rebases with equal gaps betwen them are encoded as REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB. |
| .quad _foo |
| .space 16 |
| .quad _foo |
| .space 16 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB |
| # CHECK-NEXT: Imm: 0 |
| # CHECK-NEXT: ExtraData: [ 0x2, 0x10 ] |
| |
| ## 5/ Rebase does not become a part of DO_REBASE_ULEB_TIMES_SKIPPING_ULEB if the next rebase is closer than the gap. |
| .quad _foo |
| .space 8 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB |
| # CHECK-NEXT: Imm: 0 |
| # CHECK-NEXT: ExtraData: [ 0x8 ] |
| |
| .quad _foo |
| .quad _foo |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_IMM_TIMES |
| # CHECK-NEXT: Imm: 2 |
| |
| ## 6/ Large gaps are encoded as REBASE_OPCODE_ADD_ADDR_ULEB. |
| .space 128 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_ADD_ADDR_ULEB |
| # CHECK-NEXT: Imm: 0 |
| # CHECK-NEXT: ExtraData: [ 0x80 ] |
| |
| .quad _foo |
| .space 8 |
| .quad _foo |
| .space 8 |
| .quad _foo |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB |
| # CHECK-NEXT: Imm: 0 |
| # CHECK-NEXT: ExtraData: [ 0x3, 0x8 ] |
| |
| |
| ## 7/ An add opcode is emitted if the next relocation is farther away than the DO_REBASE_ULEB_TIMES_SKIPPING_ULEB gap. |
| .space 16 |
| .quad _foo |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_ADD_ADDR_IMM_SCALED |
| # CHECK-NEXT: Imm: 1 |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DO_REBASE_IMM_TIMES |
| # CHECK-NEXT: Imm: 1 |
| |
| ## 8/ The rebase section is terminated by REBASE_OPCODE_DONE. |
| # CHECK-NEXT: Opcode: REBASE_OPCODE_DONE |
| # CHECK-NEXT: Imm: 0 |
