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xtensa: sprintf sanitizer null destination pointer

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* config/tc-xtensa.c (xtensa_add_config_info): Use auto buffer
	rather than malloc.  Use sprintf return value.
This commit is contained in:
Alan Modra
2023-08-03 08:56:24 +09:30
parent eaf1fa5ac5
commit ebfd369c3e
1 changed files with 4 additions and 7 deletions
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11
gas/config/tc-xtensa.c
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@@ -8979,16 +8979,15 @@ static void
xtensa_add_config_info (void) xtensa_add_config_info (void)
{ {
asection *info_sec; asection *info_sec;
char *data, *p; char data[100];
char *p;
int sz; int sz;
info_sec = subseg_new (".xtensa.info", 0); info_sec = subseg_new (".xtensa.info", 0);
bfd_set_section_flags (info_sec, SEC_HAS_CONTENTS | SEC_READONLY); bfd_set_section_flags (info_sec, SEC_HAS_CONTENTS | SEC_READONLY);
data = XNEWVEC (char, 100); sz = 1 + sprintf (data, "USE_ABSOLUTE_LITERALS=%d\nABI=%d\n",
sprintf (data, "USE_ABSOLUTE_LITERALS=%d\nABI=%d\n", XSHAL_USE_ABSOLUTE_LITERALS, xtensa_abi_choice ());
XSHAL_USE_ABSOLUTE_LITERALS, xtensa_abi_choice ());
sz = strlen (data) + 1;
/* Add enough null terminators to pad to a word boundary. */ /* Add enough null terminators to pad to a word boundary. */
do do
@@ -9015,8 +9014,6 @@ xtensa_add_config_info (void)
/* Finally, write the descriptor. */ /* Finally, write the descriptor. */
p = frag_more (sz); p = frag_more (sz);
memcpy (p, data, sz); memcpy (p, data, sz);
free (data);
} }