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authorNick Clifton <nickc@redhat.com>2018-09-13 09:34:53 +0100
committerNick Clifton <nickc@redhat.com>2018-09-13 09:34:53 +0100
commit031e33500e82fb8ef525595ea684473774dfc669 (patch)
tree9da8fe2344ef69764f48ae5bd8c71b214b48dc59
parent4cb3152d95f08b054e5b74f0cc5c8dff019b3a8a (diff)
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Fix the use by the RL78 assembler of an uninitialised field in the expresion structure.
* dwarf2dbg.c (generic_dwarf2_emit_offset): Use memset to initialise expression structure. (set_or_check_view): Likewise. (out_set_addr): Likewise. (emit_fixed_inc_line_addr): Likewise. (relax_inc_line_addr): Likewise. (out_debug_line): Likewise. (out_debug_ranges): Likewise. (out_debug_aranges): Likewise. (out_debug_info): Likewise.
-rw-r--r--gas/ChangeLog13
-rw-r--r--gas/dwarf2dbg.c9
2 files changed, 22 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 310bf6e..84895be 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,16 @@
+2018-09-13 Nick Clifton <nickc@redhat.com>
+
+ * dwarf2dbg.c (generic_dwarf2_emit_offset): Use memset to
+ initialise expression structure.
+ (set_or_check_view): Likewise.
+ (out_set_addr): Likewise.
+ (emit_fixed_inc_line_addr): Likewise.
+ (relax_inc_line_addr): Likewise.
+ (out_debug_line): Likewise.
+ (out_debug_ranges): Likewise.
+ (out_debug_aranges): Likewise.
+ (out_debug_info): Likewise.
+
2018-09-06 Alan Modra <amodra@gmail.com>
PR 23570
diff --git a/gas/dwarf2dbg.c b/gas/dwarf2dbg.c
index 7193265..e42c561 100644
--- a/gas/dwarf2dbg.c
+++ b/gas/dwarf2dbg.c
@@ -251,6 +251,7 @@ generic_dwarf2_emit_offset (symbolS *symbol, unsigned int size)
{
expressionS exp;
+ memset (&exp, 0, sizeof exp);
exp.X_op = O_symbol;
exp.X_add_symbol = symbol;
exp.X_add_number = 0;
@@ -379,6 +380,7 @@ set_or_check_view (struct line_entry *e, struct line_entry *p,
if (view_assert_failed)
{
expressionS chk;
+
memset (&chk, 0, sizeof (chk));
chk.X_unsigned = 1;
chk.X_op = O_add;
@@ -1108,6 +1110,7 @@ out_set_addr (symbolS *sym)
{
expressionS exp;
+ memset (&exp, 0, sizeof exp);
out_opcode (DW_LNS_extended_op);
out_uleb128 (sizeof_address + 1);
@@ -1373,6 +1376,7 @@ emit_fixed_inc_line_addr (int line_delta, addressT addr_delta, fragS *frag,
symbolS *to_sym;
expressionS exp;
+ memset (&exp, 0, sizeof exp);
gas_assert (pexp->X_op == O_subtract);
to_sym = pexp->X_add_symbol;
@@ -1413,6 +1417,7 @@ relax_inc_line_addr (int line_delta, symbolS *to_sym, symbolS *from_sym)
expressionS exp;
int max_chars;
+ memset (&exp, 0, sizeof exp);
exp.X_op = O_subtract;
exp.X_add_symbol = to_sym;
exp.X_op_symbol = from_sym;
@@ -1780,6 +1785,7 @@ out_debug_line (segT line_seg)
struct line_seg *s;
int sizeof_offset;
+ memset (&exp, 0, sizeof exp);
sizeof_offset = out_header (line_seg, &exp);
line_end = exp.X_add_symbol;
@@ -1850,6 +1856,7 @@ out_debug_ranges (segT ranges_seg)
expressionS exp;
unsigned int i;
+ memset (&exp, 0, sizeof exp);
subseg_set (ranges_seg, 0);
/* Base Address Entry. */
@@ -1903,6 +1910,7 @@ out_debug_aranges (segT aranges_seg, segT info_seg)
char *p;
int sizeof_offset;
+ memset (&exp, 0, sizeof exp);
sizeof_offset = out_header (aranges_seg, &exp);
aranges_end = exp.X_add_symbol;
size = -exp.X_add_number;
@@ -2012,6 +2020,7 @@ out_debug_info (segT info_seg, segT abbrev_seg, segT line_seg, segT ranges_seg,
symbolS *info_end;
int sizeof_offset;
+ memset (&exp, 0, sizeof exp);
sizeof_offset = out_header (info_seg, &exp);
info_end = exp.X_add_symbol;