| commit | af979a98bce444082cd5fc5d358dcdf3f65fdfce | |
| author | Bill Schmidt <wschmidt@linux.ibm.com> | |
| Fri, 14 May 2021 19:25:25 +0000 (14 14:25 -0500) | ||
| committer | Bill Schmidt <wschmidt@linux.ibm.com> | |
| Sat, 15 May 2021 19:04:56 +0000 (15 14:04 -0500) | ||
| tree | 9a7f0afa2db2779b53e327b625825988c16a7591 | treesnapshot (tar.gz zip) |
| parent | 0df864ed1d24bbb0cf7504814e2f48e496ea5669 | commitdiff |
rs6000: Emit ROP-mitigation instructions in prologue and epilogue
2021-05-14 Bill Schmidt <wschmidt@linux.ibm.com>
gcc/
* config/rs6000/rs6000-internal.h (rs6000_stack): Add
rop_hash_save_offset and rop_hash_size.
* config/rs6000/rs6000-logue.c (rs6000_stack_info): Compute
rop_hash_size and rop_hash_save_offset.
(debug_stack_info): Dump rop_hash_save_offset and rop_hash_size.
(rs6000_emit_prologue): Emit hashst[p] in prologue.
(rs6000_emit_epilogue): Emit hashchk[p] in epilogue.
* config/rs6000/rs6000.md (unspec): Add UNSPEC_HASHST and
UNSPEC_HASHCHK.
(hashst): New define_insn.
(hashchk): Likewise.
2021-05-14 Bill Schmidt <wschmidt@linux.ibm.com>
gcc/
* config/rs6000/rs6000-internal.h (rs6000_stack): Add
rop_hash_save_offset and rop_hash_size.
* config/rs6000/rs6000-logue.c (rs6000_stack_info): Compute
rop_hash_size and rop_hash_save_offset.
(debug_stack_info): Dump rop_hash_save_offset and rop_hash_size.
(rs6000_emit_prologue): Emit hashst[p] in prologue.
(rs6000_emit_epilogue): Emit hashchk[p] in epilogue.
* config/rs6000/rs6000.md (unspec): Add UNSPEC_HASHST and
UNSPEC_HASHCHK.
(hashst): New define_insn.
(hashchk): Likewise.
| gcc/config/rs6000/rs6000-internal.h | diffblobblamehistory | |
| gcc/config/rs6000/rs6000-logue.c | diffblobblamehistory | |
| gcc/config/rs6000/rs6000.md | diffblobblamehistory |