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ppc: Fix record of HTM instructions

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The patch fixes the record support of Hardware Transactional Memory
instructions on Power. It also solves a large number of unexpected failures
from gdb.reverse testcases sigall-precsave.exp and sigall-reverse.exp that
occur on distros which glibc uses HTM instructions.

gdb/ChangeLog
2016-08-18  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>

	* rs6000-tdep.c (ppc_process_record_op31): Handle HTM instructions.
This commit is contained in:
Edjunior Barbosa Machado 2016-08-18 10:45:12 -03:00
parent 626c539f2e
commit d44c67f381
2 changed files with 9 additions and 5 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2016-08-18 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
* rs6000-tdep.c (ppc_process_record_op31): Handle HTM instructions.
2016-08-17 Simon Marchi <simon.marchi@ericsson.com>
* inferior.c (remove_inferior_command): Fix error message.

10
gdb/rs6000-tdep.c
View file

@ -4613,17 +4613,17 @@ ppc_process_record_op31 (struct gdbarch *gdbarch, struct regcache *regcache,
case 654: /* Transaction Begin */
case 686: /* Transaction End */
case 718: /* Transaction Check */
case 750: /* Transaction Suspend or Resume */
case 782: /* Transaction Abort Word Conditional */
case 814: /* Transaction Abort Doubleword Conditional */
case 846: /* Transaction Abort Word Conditional Immediate */
case 878: /* Transaction Abort Doubleword Conditional Immediate */
case 910: /* Transaction Abort */
fprintf_unfiltered (gdb_stdlog, "Cannot record Transaction instructions. "
"%08x at %s, 31-%d.\n",
insn, paddress (gdbarch, addr), ext);
return -1;
record_full_arch_list_add_reg (regcache, tdep->ppc_ps_regnum);
/* FALL-THROUGH */
case 718: /* Transaction Check */
record_full_arch_list_add_reg (regcache, tdep->ppc_cr_regnum);
return 0;
case 1014: /* Data Cache Block set to Zero */
if (target_auxv_search (&current_target, AT_DCACHEBSIZE, &at_dcsz) <= 0