* arm: sanitizer stringop-overflow
@ 2023-08-03 11:46 Alan Modra
0 siblings, 0 replies; only message in thread
From: Alan Modra @ 2023-08-03 11:46 UTC (permalink / raw)
To: binutils
In function ‘memset’,
inlined from ‘create_unwind_entry’ at /home/alan/src/binutils-gdb/gas/config/tc-arm.c:27881:3:
/usr/include/bits/string_fortified.h:59:10: error: ‘__builtin_memset’ specified size between 2147483652 and 4294967295 exceeds maximum object size 2147483647 [-Werror=stringop-overflow=]
59 | return __builtin___memset_chk (__dest, __ch, __len,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
60 | __glibc_objsize0 (__dest));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
* config/tc-arm.c (create_unwind_entry): Return after bad size,
and bad opcode count.
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index c0f6215fbc1..f912fb234b6 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -27828,7 +27828,10 @@ create_unwind_entry (int have_data)
if (unwind.personality_index == 0)
{
if (unwind.opcode_count > 3)
- as_bad (_("too many unwind opcodes for personality routine 0"));
+ {
+ as_bad (_("too many unwind opcodes for personality routine 0"));
+ return 1;
+ }
if (!have_data)
{
@@ -27869,7 +27872,10 @@ create_unwind_entry (int have_data)
size = (size + 3) >> 2;
if (size > 0xff)
- as_bad (_("too many unwind opcodes"));
+ {
+ as_bad (_("too many unwind opcodes"));
+ return 1;
+ }
frag_align (2, 0, 0);
record_alignment (now_seg, 2);
--
Alan Modra
Australia Development Lab, IBM
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