From bec734b212d68d96560e309f49a584d98b98fbdc Mon Sep 17 00:00:00 2001 From: John Baldwin Date: Sat, 11 Jun 2016 07:26:09 -0700 Subject: [PATCH] Initialize 'ra' to zero to avoid uninitialized use. If the instruction in this case does not include an RA field, then 'ra' is used uninitialized. Use the same idiom used elsewhere in this file of initializing ra to zero before check for an RA field. gdb/ChangeLog: * rs6000-tdep.c (ppc_process_record_op31): Initialize ra. --- gdb/ChangeLog | 4 ++++ gdb/rs6000-tdep.c | 1 + 2 files changed, 5 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 1bd309f..c0d4a3f 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2016-06-14 John Baldwin + + * rs6000-tdep.c (ppc_process_record_op31): Initialize ra. + 2016-06-13 Nick Clifton * gdbtypes.c (replace_type): Fix assertion. diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c index 645fe92..1ed1354 100644 --- a/gdb/rs6000-tdep.c +++ b/gdb/rs6000-tdep.c @@ -4631,6 +4631,7 @@ ppc_process_record_op31 (struct gdbarch *gdbarch, struct regcache *regcache, || at_dcsz == 0) at_dcsz = 128; /* Assume 128-byte cache line size (POWER8) */ + ra = 0; if (PPC_RA (insn) != 0) regcache_raw_read_unsigned (regcache, tdep->ppc_gp0_regnum + PPC_RA (insn), &ra); -- 2.7.4