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| author | Stafford Horne <shorne@gmail.com> | 2021-05-06 20:51:25 +0900 |
|---|---|---|
| committer | Stafford Horne <shorne@gmail.com> | 2021-05-06 20:51:25 +0900 |
| commit | 284a1309021a0ef4c29f198470d95652f02b13f0 (patch) | |
| tree | 2d03e9e8e31054b85767672cc6802712b14161eb /ld/testsuite/ld-or1k/gotha2.dd | |
| parent | 3c3de29b048bca6b4aa4235c647b9328e71801b6 (diff) | |
| download | gdb-284a1309021a0ef4c29f198470d95652f02b13f0.zip gdb-284a1309021a0ef4c29f198470d95652f02b13f0.tar.gz gdb-284a1309021a0ef4c29f198470d95652f02b13f0.tar.bz2 | |
or1k: Support large plt_relocs when generating plt entries
The current PLT generation code will generate invalid code when the PLT
relocation offset exceeds 64k. This fixes the issue by detecting large
plt_reloc offsets and generare code sequences to create larger plt
relocations.
The "large" plt code needs 2 extra instructions to create 32-bit offsets.
bfd/ChangeLog:
PR 27746
* elf32-or1k.c (PLT_ENTRY_SIZE_LARGE, PLT_MAX_INSN_COUNT,
OR1K_ADD, OR1K_ORI): New macros to help with plt creation.
(elf_or1k_link_hash_table): New field plt_count.
(elf_or1k_link_hash_entry): New field plt_index.
(elf_or1k_plt_entry_size): New function.
(or1k_write_plt_entry): Update to support variable size PLTs.
(or1k_elf_finish_dynamic_sections): Use new or1k_write_plt_entry
API.
(or1k_elf_finish_dynamic_symbol): Update to write large PLTs
when needed.
(allocate_dynrelocs): Use elf_or1k_plt_entry_size to account for
PLT size.
ld/ChangeLog:
PR 27746
testsuite/ld-or1k/or1k.exp (or1kplttests): Add tests for linking
along with gotha() relocations.
testsuite/ld-or1k/gotha1.dd: New file.
testsuite/ld-or1k/gotha1.s: New file.
testsuite/ld-or1k/gotha2.dd: New file.
testsuite/ld-or1k/gotha2.s: New file
testsuite/ld-or1k/pltlib.s (x): Define size to avoid link
failure.
Diffstat (limited to 'ld/testsuite/ld-or1k/gotha2.dd')
| -rw-r--r-- | ld/testsuite/ld-or1k/gotha2.dd | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/ld/testsuite/ld-or1k/gotha2.dd b/ld/testsuite/ld-or1k/gotha2.dd new file mode 100644 index 0000000..fe09da5 --- /dev/null +++ b/ld/testsuite/ld-or1k/gotha2.dd @@ -0,0 +1,21 @@ + +.*\.x: file format elf32-or1k + + +Disassembly of section \.text: + +[0-9a-f]+ <test>: + +[0-9a-f]+: 9c 21 ff f8 l\.addi r1,r1,-8 + +[0-9a-f]+: d4 01 80 00 l\.sw 0\(r1\),r16 + +[0-9a-f]+: d4 01 48 04 l\.sw 4\(r1\),r9 + +[0-9a-f]+: 04 00 [0-9a-f]+ [0-9a-f]+ l\.jal [0-9a-f]+ <test\+0x14> + +[0-9a-f]+: 1a 00 00 00 l\.movhi r16,0x0 + +[0-9a-f]+: aa 10 [0-9a-f]+ [0-9a-f]+ l\.ori r16,r16,0x[0-9a-f]+ + +[0-9a-f]+: e2 10 48 00 l\.add r16,r16,r9 + +[0-9a-f]+: 1a 20 00 00 l\.movhi r17,0x0 + +[0-9a-f]+: e2 31 80 00 l\.add r17,r17,r16 + +[0-9a-f]+: 86 31 00 0c l\.lwz r17,12\(r17\) + +[0-9a-f]+: 85 21 00 04 l\.lwz r9,4\(r1\) + +[0-9a-f]+: 86 01 00 00 l\.lwz r16,0\(r1\) + +[0-9a-f]+: 44 00 48 00 l\.jr r9 + +[0-9a-f]+: 9c 21 00 08 l\.addi r1,r1,8 |