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[binutils-gdb/gdb-7.12-branch] ppc: Fix record of HTM instructions


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=1c9c56667193b56ad5fa30ac0ae731f1d63cd6c5

commit 1c9c56667193b56ad5fa30ac0ae731f1d63cd6c5
Author: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>
Date:   Thu Aug 18 11:15:04 2016 -0300

    ppc: Fix record of HTM instructions
    
    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.

Diff:
---
 gdb/ChangeLog     |  4 ++++
 gdb/rs6000-tdep.c | 10 +++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ad3e36d..3f8d16b 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -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.
+
 2016-08-15  Matthew Wahab  <matthew.wahab@arm.com>
 
 	PR gdb/20457
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index a616cbe..eb12c5d 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -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


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