| // REQUIRES: arm |
| // RUN: llvm-mc -filetype=obj --arm-add-build-attributes -triple=armv7a-none-linux-gnueabi %s -o %t |
| // RUN: ld.lld --emit-relocs %t -o %t2 |
| // RUN: llvm-objdump -s -triple=armv7a-none-linux-gnueabi %t2 | FileCheck %s |
| // RUN: llvm-readelf --relocs %t2 | FileCheck -check-prefix=CHECK-RELOCS %s |
| |
| // LLD does not support --emit-relocs for .ARM.exidx sections as the relocations |
| // from synthetic table entries won't be represented. Given the known use cases |
| // of --emit-relocs, relocating kernels, and binary analysis, the former doesn't |
| // use exceptions and the latter can derive the relocations from the table if |
| // they need them. |
| .syntax unified |
| // Will produce an ARM.exidx entry with inline unwinding instructions |
| .section .text.func1, "ax",%progbits |
| .global func1 |
| func1: |
| .fnstart |
| bx lr |
| .save {r7, lr} |
| .setfp r7, sp, #0 |
| .fnend |
| |
| .syntax unified |
| .section .text.func2, "ax",%progbits |
| // A function with the same inline unwinding instructions, expect merge. |
| .global func2 |
| func2: |
| .fnstart |
| bx lr |
| .save {r7, lr} |
| .setfp r7, sp, #0 |
| .fnend |
| |
| .section .text.25, "ax", %progbits |
| .global func25 |
| func25: |
| .fnstart |
| bx lr |
| .cantunwind |
| .fnend |
| |
| .section .text.26, "ax", %progbits |
| .global func26 |
| func26: |
| .fnstart |
| bx lr |
| .cantunwind |
| .fnend |
| |
| .syntax unified |
| .section .text.func3, "ax",%progbits |
| // A function with the same inline unwinding instructions, expect merge. |
| .global func3 |
| func3: |
| .fnstart |
| bx lr |
| .save {r7, lr} |
| .setfp r7, sp, #0 |
| .fnend |
| |
| .section .text.__aeabi_unwind_cpp_pr0, "ax", %progbits |
| .global __aeabi_unwind_cpp_pr0 |
| __aeabi_unwind_cpp_pr0: |
| bx lr |
| |
| // CHECK: Contents of section .ARM.exidx: |
| // CHECK-NEXT: 100d4 28100000 08849780 28100000 01000000 |
| // CHECK-NEXT: 100e4 28100000 08849780 24100000 01000000 |
| // CHECK-NEXT: 100f4 20100000 01000000 |
| |
| // CHECK-RELOCS-NOT: Relocation section '.rel.ARM.exidx' |