[LLD][ARM] Link fails when using `-frwpi` and debug symbols

[hpfaz]

Tested from clang-16 to clang-18 (x86-64) cross-compiling to arm-none-eabi, please refer to https://godbolt.org/z/GEf89sqs3

test code is:

int val = 42;

int test(int num) {
    return val * num;
}

Clang command line is:
--target=arm-none-none-eabi -g -O0 -frwpi -v -nostdlib

LLD fails with:
ld.lld: error: /tmp/example-5528f7.o:(.debug_info+0x33): has non-ABS relocation R_ARM_SBREL32 against symbol 'val'

Using -g0 instead of -g will link as expected.

[ostannard]

Fixed by #116956

[llvmbot]

@llvm/issue-subscribers-lld-elf

Author: Hatim-Pierre FAZILEABASSE (hpfaz)

Tested from clang-16 to clang-18 (x86-64) cross-compiling to arm-none-eabi, please refer to https://godbolt.org/z/GEf89sqs3

test code is:

int val = 42;

int test(int num) {
    return val * num;
}

Clang command line is:
--target=arm-none-none-eabi -g -O0 -frwpi -v -nostdlib

LLD fails with:
ld.lld: error: /tmp/example-5528f7.o:(.debug_info+0x33): has non-ABS relocation R_ARM_SBREL32 against symbol 'val'

Using -g0 instead of -g will link as expected.