crash/0027-Fix-gcc-11-compiler-warning-on-symbols.c.patch

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From 12898df249a5db826d2390467aaadd49de29074e Mon Sep 17 00:00:00 2001
From: Kazuhito Hagio <k-hagio-ab@nec.com>
Date: Fri, 22 Jul 2022 13:44:50 +0900
Subject: [PATCH 27/89] Fix gcc-11 compiler warning on symbols.c
Without the patch, the following gcc-11 compiler warning is emitted for
symbols.c:
symbols.c: In function 'cmd_p':
symbols.c:7412:38: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
7412 | *(cpuspec-1) = ':';
| ~~~~~~~~~~~~~^~~~~
Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
---
symbols.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/symbols.c b/symbols.c
index 69004a2e66e3..a94660538492 100644
--- a/symbols.c
+++ b/symbols.c
@@ -7363,7 +7363,7 @@ cmd_p(void)
unsigned radix;
int do_load_module_filter;
char buf1[BUFSIZE];
- char *cpuspec;
+ char *cpuspec, *p;
do_load_module_filter = radix = 0;
@@ -7398,7 +7398,7 @@ cmd_p(void)
if (argerrs || !args[optind])
cmd_usage(pc->curcmd, SYNOPSIS);
- cpuspec = strrchr(args[optind], ':');
+ p = cpuspec = strrchr(args[optind], ':');
if (cpuspec)
*cpuspec++ = NULLCHAR;
@@ -7421,7 +7421,7 @@ cmd_p(void)
sp->name);
else
/* maybe a valid C expression (e.g. ':') */
- *(cpuspec-1) = ':';
+ *p = ':';
}
process_gdb_output(concat_args(buf1, 0, TRUE), radix,
--
2.37.1