diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2000-06-06 20:18:21 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2000-06-06 20:18:21 +0000 |
| commit | df4ef8b8a6e3a5ae6fcf99555606fd2b2d4978ef (patch) | |
| tree | 0f5fa209150547cbdfcc77975bb096379cc80e98 /sys/kern/kern_malloc.c | |
| parent | 53362e67cc113df1bdd7eb307573e1532504ad67 (diff) | |
malloc debugging code. Enabled by option MALLOC_DEBUG.
Make sure you read the docs (malloc(9)) before use.
Diffstat (limited to 'sys/kern/kern_malloc.c')
| -rw-r--r-- | sys/kern/kern_malloc.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/sys/kern/kern_malloc.c b/sys/kern/kern_malloc.c index 3e1aeb3c0a6..0c0258354ee 100644 --- a/sys/kern/kern_malloc.c +++ b/sys/kern/kern_malloc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_malloc.c,v 1.19 2000/03/16 22:11:03 art Exp $ */ +/* $OpenBSD: kern_malloc.c,v 1.20 2000/06/06 20:18:20 art Exp $ */ /* $NetBSD: kern_malloc.c,v 1.15.4.2 1996/06/13 17:10:56 cgd Exp $ */ /* @@ -61,6 +61,12 @@ char *kmembase, *kmemlimit; char *memname[] = INITKMEMNAMES; #endif +#ifdef MALLOC_DEBUG +extern int debug_malloc __P((unsigned long, int, int, void **)); +extern int debug_free __P((void *, int)); +extern void debug_malloc_init __P((void)); +#endif + #ifdef DIAGNOSTIC /* * This structure provides a set of masks to catch unaligned frees. @@ -124,6 +130,12 @@ malloc(size, type, flags) if (((unsigned long)type) > M_LAST) panic("malloc - bogus type"); #endif + +#ifdef MALLOC_DEBUG + if (debug_malloc(size, type, flags, (void **)&va)) + return ((void *) va); +#endif + indx = BUCKETINDX(size); kbp = &bucket[indx]; s = splimp(); @@ -319,6 +331,11 @@ free(addr, type) register struct kmemstats *ksp = &kmemstats[type]; #endif +#ifdef MALLOC_DEBUG + if (debug_free(addr, type)) + return; +#endif + kup = btokup(addr); size = 1 << kup->ku_indx; kbp = &bucket[kup->ku_indx]; @@ -457,4 +474,8 @@ kmeminit() for (indx = 0; indx < M_LAST; indx++) kmemstats[indx].ks_limit = npg * PAGE_SIZE * 6 / 10; #endif +#ifdef MALLOC_DEBUG + debug_malloc_init(); +#endif } + |