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| author | mengqinggang <mengqinggang@loongson.cn> | 2023-06-25 17:47:42 +0800 |
|---|---|---|
| committer | liuzhensong <liuzhensong@loongson.cn> | 2023-06-28 16:14:35 +0800 |
| commit | be1ebb6710a8f707bd4b0eecbd00f4f4964050e5 (patch) | |
| tree | 413bfa848b9cd768137c124d640890f63daf6fab /ld | |
| parent | 69933be89fe5002d2d541ecf2145d5ccac19bbac (diff) | |
| download | gdb-be1ebb6710a8f707bd4b0eecbd00f4f4964050e5.zip gdb-be1ebb6710a8f707bd4b0eecbd00f4f4964050e5.tar.gz gdb-be1ebb6710a8f707bd4b0eecbd00f4f4964050e5.tar.bz2 | |
LoongArch: Add R_LARCH_64_PCREL relocation support
Gas defaults to emit R_LARCH_ADD64/R_LARCH_SUB64 unless explcitly declared
to emit R_LARCH_64_PCREL.
The LoongArch ABI at here:
https://github.com/loongson/la-abi-specs/blob/release/la-abi.adoc
bfd/ChangeLog:
* bfd-in2.h (not): Add R_LARCH_64_PCREL
* elfnn-loongarch.c (perform_relocation): Likewise.
* elfxx-loongarch.c: Likewise.
* libbfd.h: Likewise.
* reloc.c: Likewise.
gas/ChangeLog:
* config/tc-loongarch.c (loongarch_args_parser_can_match_arg_helper):
(md_apply_fix): Add R_LARCH_64_PCREL.
* testsuite/gas/loongarch/64_pcrel.d: New test.
* testsuite/gas/loongarch/64_pcrel.s: New test.
include/ChangeLog:
* elf/loongarch.h (RELOC_NUMBER): Add R_LARCH_64_PCREL.
ld/ChangeLog:
* testsuite/ld-loongarch-elf/ld-loongarch-elf.exp: Add test.
* testsuite/ld-loongarch-elf/64_pcrel.d: New test.
* testsuite/ld-loongarch-elf/64_pcrel.s: New test.
Diffstat (limited to 'ld')
| -rw-r--r-- | ld/testsuite/ld-loongarch-elf/64_pcrel.d | 4 | ||||
| -rw-r--r-- | ld/testsuite/ld-loongarch-elf/64_pcrel.s | 11 | ||||
| -rw-r--r-- | ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp | 16 |
3 files changed, 31 insertions, 0 deletions
diff --git a/ld/testsuite/ld-loongarch-elf/64_pcrel.d b/ld/testsuite/ld-loongarch-elf/64_pcrel.d new file mode 100644 index 0000000..2ea063b --- /dev/null +++ b/ld/testsuite/ld-loongarch-elf/64_pcrel.d @@ -0,0 +1,4 @@ +#... +.*0xffffbffc.* +.*0xffffffff.* +#pass diff --git a/ld/testsuite/ld-loongarch-elf/64_pcrel.s b/ld/testsuite/ld-loongarch-elf/64_pcrel.s new file mode 100644 index 0000000..68af590 --- /dev/null +++ b/ld/testsuite/ld-loongarch-elf/64_pcrel.s @@ -0,0 +1,11 @@ +.text + nop + nop +L1: + nop +.data + nop + nop + .8byte 0x1234567812345678 + .reloc 0,R_LARCH_64_PCREL,L1 + nop diff --git a/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp b/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp index 50a1208..b95cc53 100644 --- a/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp +++ b/ld/testsuite/ld-loongarch-elf/ld-loongarch-elf.exp @@ -40,3 +40,19 @@ if [istarget "loongarch32-*-*"] { run_dump_test "syscall" run_dump_test "disas-jirl-32" } + +if [istarget "loongarch64-*-*"] { + run_ld_link_tests \ + [list \ + [list \ + "64_pcrel" \ + "-e 0x0 -z relro" "" \ + "" \ + {64_pcrel.s} \ + [list \ + [list objdump -D 64_pcrel.d] \ + ] \ + "64_pcrel" \ + ] \ + ] +} |