DeforaNetworks/zzuf
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* Removed brk/sbrk, they're so outdated and useless.

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This commit is contained in:
Sam Hocevar 2007-01-10 17:31:58 +00:00 committed by sam
parent 8e1f60e2d0
commit 0f030d2215
2 changed files with 3 additions and 31 deletions
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3
doc/zzuf.1
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@ -290,8 +290,7 @@ Standard IO streams:
.TP
Memory management:
\fBmmap\fR(), \fBmunmap\fR(), \fBmalloc\fR(), \fBcalloc\fR(), \fBvalloc\fR(),
\fBfree\fR(), \fBmemalign\fR(), \fBposix_memalign\fR(), \fBbrk\fR(),
\fBsbrk\fR()
\fBfree\fR(), \fBmemalign\fR(), \fBposix_memalign\fR()
.TP
Linux-specific:
\fBopen64\fR(), \fBlseek64\fR(), \fBmmap64\fR(), \fB_IO_getc\fR(),

31
src/load-mem.c
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@ -53,6 +53,8 @@
#include "load.h"
#include "fd.h"
/* TODO: mremap, maybe brk/sbrk */
/* Library functions that we divert */
static void * (*calloc_orig) (size_t nmemb, size_t size);
static void * (*malloc_orig) (size_t size);
@ -66,14 +68,9 @@ static int (*posix_memalign_orig) (void **memptr, size_t alignment,
size_t size);
#endif
static void * (*realloc_orig) (void *ptr, size_t size);
static int (*brk_orig) (void *end_data_segment);
static void * (*sbrk_orig) (intptr_t increment);
static void * (*mmap_orig) (void *start, size_t length, int prot,
int flags, int fd, off_t offset);
/* TODO */
/* static void * (*mremap_orig) (void *old_address, size_t old_size,
size_t new_size, int flags); */
#ifdef HAVE_MMAP64
static void * (*mmap64_orig) (void *start, size_t length, int prot,
int flags, int fd, off64_t offset);
@ -98,8 +95,6 @@ void _zz_load_mem(void)
#ifdef HAVE_POSIX_MEMALIGN
LOADSYM(posix_memalign);
#endif
LOADSYM(brk);
LOADSYM(sbrk);
LOADSYM(mmap);
#ifdef HAVE_MMAP64
@ -202,28 +197,6 @@ int posix_memalign(void **memptr, size_t alignment, size_t size)
}
#endif
int brk(void *end_data_segment)
{
int ret;
if(!_zz_ready)
LOADSYM(brk);
ret = brk_orig(end_data_segment);
if(ret == -1 && _zz_memory && errno == ENOMEM)
raise(SIGKILL);
return ret;
}
void *sbrk(intptr_t increment)
{
void *ret;
if(!_zz_ready)
LOADSYM(sbrk);
ret = sbrk_orig(increment);
if(ret == (void *)-1 && _zz_memory && errno == ENOMEM)
raise(SIGKILL);
return ret;
}
/* Table used for mmap() and munmap() */
void **maps = NULL;
int nbmaps = 0;