Date: Tue, 9 Jul 2024 18:45:17 GMT From: Ryan Libby <rlibby@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: ff1c63671b73 - main - kdb_sysctl_trap: suppress gcc -Warray-bounds Message-ID: <202407091845.469IjHgB087533@gitrepo.freebsd.org>
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The branch main has been updated by rlibby: URL: https://cgit.FreeBSD.org/src/commit/?id=ff1c63671b7372ef7d52da11d02e082876c22654 commit ff1c63671b7372ef7d52da11d02e082876c22654 Author: Ryan Libby <rlibby@FreeBSD.org> AuthorDate: 2024-07-09 17:58:21 +0000 Commit: Ryan Libby <rlibby@FreeBSD.org> CommitDate: 2024-07-09 17:58:21 +0000 kdb_sysctl_trap: suppress gcc -Warray-bounds gcc diagnosed a dereference of 0x10 with -Warray-bounds, which is entirely sensible, except that this is a deliberate trap. Throw gcc off with a volatile pointer. Reviewed by: kib (previous version) Differential Revision: https://reviews.freebsd.org/D45917 --- sys/kern/subr_kdb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/kern/subr_kdb.c b/sys/kern/subr_kdb.c index a7fc2284cbcf..56264a96c9fa 100644 --- a/sys/kern/subr_kdb.c +++ b/sys/kern/subr_kdb.c @@ -238,7 +238,7 @@ static int kdb_sysctl_trap(SYSCTL_HANDLER_ARGS) { int error, i; - int *addr = (int *)0x10; + int *volatile addr = (int *)0x10; error = sysctl_wire_old_buffer(req, sizeof(int)); if (error == 0) {
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