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kdump(1): Symbolic printing for MALLOC_OPTIONS="U".

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This commit is contained in:
nonaka 2019-07-23 01:54:51 +00:00
parent dadc88e3b0
commit 889dcccd73
1 changed files with 24 additions and 2 deletions
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26
usr.bin/kdump/kdump.c
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@ -1,4 +1,4 @@
/* $NetBSD: kdump.c,v 1.131 2019/05/06 19:20:13 christos Exp $ */
/* $NetBSD: kdump.c,v 1.132 2019/07/23 01:54:51 nonaka Exp $ */
/*-
* Copyright (c) 1988, 1993
@ -39,7 +39,7 @@ __COPYRIGHT("@(#) Copyright (c) 1988, 1993\
#if 0
static char sccsid[] = "@(#)kdump.c 8.4 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: kdump.c,v 1.131 2019/05/06 19:20:13 christos Exp $");
__RCSID("$NetBSD: kdump.c,v 1.132 2019/07/23 01:54:51 nonaka Exp $");
#endif
#endif /* not lint */
@ -1142,6 +1142,27 @@ ktruser_control(const char *name, const void *buf, size_t len)
(size_t)m.cmsg_len, m.cmsg_level, m.cmsg_type);
}
static void
ktruser_malloc(const char *name, const void *buf, size_t len)
{
struct ut { void *p; size_t s; void *r; } m;
if (len != sizeof(m))
warnx("%.*s: len %zu != %zu", KTR_USER_MAXIDLEN, name, len,
sizeof(m));
memcpy(&m, buf, len < sizeof(m) ? len : sizeof(m));
if (m.p == NULL && m.s == 0 && m.r == NULL)
printf("%.*s: malloc_init()\n", KTR_USER_MAXIDLEN, name);
else if (m.p != NULL && m.s != 0)
printf("%.*s: %p = realloc(%p, %zu)\n", KTR_USER_MAXIDLEN, name,
m.r, m.p, m.s);
else if (m.s == 0)
printf("%.*s: free(%p)\n", KTR_USER_MAXIDLEN, name, m.p);
else
printf("%.*s: %p = malloc(%zu)\n", KTR_USER_MAXIDLEN, name,
m.r, m.s);
}
static void
ktruser_misc(const char *name, const void *buf, size_t len)
{
@ -1161,6 +1182,7 @@ static struct {
{ "msghdr", ktruser_msghdr },
{ "mbsoname", ktruser_soname },
{ "mbcontrol", ktruser_control },
{ "malloc", ktruser_malloc },
{ NULL, ktruser_misc },
};