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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 /gas | |
| parent | 69933be89fe5002d2d541ecf2145d5ccac19bbac (diff) | |
| download | fsf-binutils-gdb-be1ebb6710a8f707bd4b0eecbd00f4f4964050e5.zip fsf-binutils-gdb-be1ebb6710a8f707bd4b0eecbd00f4f4964050e5.tar.gz fsf-binutils-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 'gas')
| -rw-r--r-- | gas/config/tc-loongarch.c | 5 | ||||
| -rw-r--r-- | gas/testsuite/gas/loongarch/64_pcrel.d | 11 | ||||
| -rw-r--r-- | gas/testsuite/gas/loongarch/64_pcrel.s | 2 |
3 files changed, 15 insertions, 3 deletions
diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c index ba5b626..4ea7b87 100644 --- a/gas/config/tc-loongarch.c +++ b/gas/config/tc-loongarch.c @@ -650,7 +650,7 @@ loongarch_args_parser_can_match_arg_helper (char esc_ch1, char esc_ch2, esc_ch1, esc_ch2, bit_field, arg); if (ip->reloc_info[0].type >= BFD_RELOC_LARCH_B16 - && ip->reloc_info[0].type < BFD_RELOC_LARCH_SUB_ULEB128) + && ip->reloc_info[0].type < BFD_RELOC_LARCH_64_PCREL) { /* As we compact stack-relocs, it is no need for pop operation. But break out until here in order to check the imm field. @@ -1230,8 +1230,7 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) function. If only fx_addsy not null, we generate BFD_RELOC_LARCH_ADD24/16/8 only, then generate R_LARCH_24/16/8. To avoid R_LARCH_ADDxx add extra value, we write 0 first - (use md_number_to_chars (buf, 0, fixP->fx_size)). - */ + (use md_number_to_chars (buf, 0, fixP->fx_size)). */ case BFD_RELOC_64: case BFD_RELOC_32: if (fixP->fx_r_type == BFD_RELOC_32 diff --git a/gas/testsuite/gas/loongarch/64_pcrel.d b/gas/testsuite/gas/loongarch/64_pcrel.d new file mode 100644 index 0000000..6d4654b --- /dev/null +++ b/gas/testsuite/gas/loongarch/64_pcrel.d @@ -0,0 +1,11 @@ +#as: +#objdump: -dr + +.*:[ ]+file format .* + + +Disassembly of section .text: + +00000000.* <.text>: +[ ]+0:[ ]+03400000[ ]+andi[ ]+\$zero,[ ]+\$zero,[ ]+0x0 +[ ]+0:[ ]+R_LARCH_64_PCREL[ ]+\*ABS\* diff --git a/gas/testsuite/gas/loongarch/64_pcrel.s b/gas/testsuite/gas/loongarch/64_pcrel.s new file mode 100644 index 0000000..932e1bf --- /dev/null +++ b/gas/testsuite/gas/loongarch/64_pcrel.s @@ -0,0 +1,2 @@ +nop +.reloc 0, R_LARCH_64_PCREL, 0 |