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| author | Clément Chigot <clement.chigot@atos.net> | 2021-03-11 11:08:19 +0100 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-03-12 22:47:23 +1030 |
| commit | 4a403be0c1b4540e22c8c608ea0bfecbf0f85e51 (patch) | |
| tree | 3908b8d38af9e56e3fd960da596c4d600f5915c5 /bfd/reloc.c | |
| parent | 2c1bef53dee85aede31e6de6fa8276d6869f6512 (diff) | |
| download | gdb-4a403be0c1b4540e22c8c608ea0bfecbf0f85e51.zip gdb-4a403be0c1b4540e22c8c608ea0bfecbf0f85e51.tar.gz gdb-4a403be0c1b4540e22c8c608ea0bfecbf0f85e51.tar.bz2 | |
aix: implement R_TOCU and R_TOCL relocations
Implement support for largetoc on XCOFF.
R_TOCU and R_TOCL are referenced by the new BFD defines:
BFD_RELOC_PPC_TOC16_HI and BFD_RELOC_PPC_TOC16_LO.
A new toc storage class is added XMC_TE.
In order to correctly handle R_TOCU, the logic behind
xcoff_reloc_type_toc is changed to compute the whole TOC offset
instead of just the difference between the "link" offset and the
"assembly" offset.
In gas, add a function to transform addis format used by AIX
"addis RT, D(RA)" into the ELF format "addis RT, RA, SI".
bfd/
* reloc.c (BFD_RELOC_PPC_TOC16_HI, BFD_RELOC_PPC_TOC16_LO):
New relocations.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* coff-rs6000.c (xcoff_calculate_relocation): Call
xcoff_reloc_type_toc for R_TOCU and R_TOCL.
(xcoff_howto_table): Remove src_mask for TOC relocations.
Add R_TOCU and R_TOCL howtos.
(_bfd_xcoff_reloc_type_lookup): Add cases for
BFD_RELOC_PPC_TOC16_HI and BFD_RELOC_PPC_TOC16_LO.
(xcoff_reloc_type_toc): Compute the whole offset.
Implement R_TOCU and R_TOCL.
* coff64-rs6000.c (xcoff64_calculate_relocation):
Likewise.
(xcoff64_howto_table): Likewise.
(xcoff64_reloc_type_lookup): Likewise.
gas/
* config/tc-ppc.c (ppc_xcoff_suffix): New function.
(MAP, MAP32, MAP64): New macros for XCOFF.
(ppc_xcoff_fixup_addis): New function.
(ppc_is_toc_sym): Handle XMC_TE.
(fixup_size): Add cases for BFD_RELOC_PPC_TOC16_HI and
BFD_RELOC_PPC_TOC16_LO.
(md_assemble): Call ppc_xcoff_fixup_addis for XCOFF.
(ppc_change_csect): Handle XMC_TE.
(ppc_tc): Enable .tc symbols to have only a XMC_TC or XMC_TE
storage class.
(ppc_symbol_new_hook): Handle XMC_TE.
(ppc_frob_symbol): Likewise.
(ppc_fix_adjustable): Likewise.
(md_apply_fix): Handle BFD_RELOC_PPC_TOC16_HI and
BFD_RELOC_PPC_TOC16_LO.
ld/
* scripttempl/aix.sc: Add .te to .data section.
* testsuite/ld-powerpc/aix52.exp: Add test structure for AIX7+.
Add aix-largetoc-1 test.
* testsuite/ld-powerpc/aix-largetoc-1-32.d: New test.
* testsuite/ld-powerpc/aix-largetoc-1-64.d: New test.
* testsuite/ld-powerpc/aix-largetoc-1.ex: New test.
* testsuite/ld-powerpc/aix-largetoc-1.s: New test.
Diffstat (limited to 'bfd/reloc.c')
| -rw-r--r-- | bfd/reloc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/bfd/reloc.c b/bfd/reloc.c index 5ed7bb8..6864521 100644 --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -2737,6 +2737,10 @@ ENUMX ENUMX BFD_RELOC_PPC_TOC16 ENUMX + BFD_RELOC_PPC_TOC16_LO +ENUMX + BFD_RELOC_PPC_TOC16_HI +ENUMX BFD_RELOC_PPC_B16 ENUMX BFD_RELOC_PPC_B16_BRTAKEN |