diff options
Diffstat (limited to 'malloc/hooks.c')
| -rw-r--r-- | malloc/hooks.c | 190 |
1 files changed, 21 insertions, 169 deletions
diff --git a/malloc/hooks.c b/malloc/hooks.c index 403024c..a0793a6 100644 --- a/malloc/hooks.c +++ b/malloc/hooks.c @@ -25,26 +25,16 @@ /* Hooks for debugging versions. The initial hooks just call the initialization routine, then do the normal work. */ -static Void_t* -#if __STD_C +static void* malloc_hook_ini(size_t sz, const __malloc_ptr_t caller) -#else -malloc_hook_ini(sz, caller) - size_t sz; const __malloc_ptr_t caller; -#endif { __malloc_hook = NULL; ptmalloc_init(); return public_mALLOc(sz); } -static Void_t* -#if __STD_C -realloc_hook_ini(Void_t* ptr, size_t sz, const __malloc_ptr_t caller) -#else -realloc_hook_ini(ptr, sz, caller) - Void_t* ptr; size_t sz; const __malloc_ptr_t caller; -#endif +static void* +realloc_hook_ini(void* ptr, size_t sz, const __malloc_ptr_t caller) { __malloc_hook = NULL; __realloc_hook = NULL; @@ -52,13 +42,8 @@ realloc_hook_ini(ptr, sz, caller) return public_rEALLOc(ptr, sz); } -static Void_t* -#if __STD_C +static void* memalign_hook_ini(size_t alignment, size_t sz, const __malloc_ptr_t caller) -#else -memalign_hook_ini(alignment, sz, caller) - size_t alignment; size_t sz; const __malloc_ptr_t caller; -#endif { __memalign_hook = NULL; ptmalloc_init(); @@ -108,13 +93,9 @@ __malloc_check_init() /* Instrument a chunk with overrun detector byte(s) and convert it into a user pointer with requested size sz. */ -static Void_t* +static void* internal_function -#if __STD_C -mem2mem_check(Void_t *ptr, size_t sz) -#else -mem2mem_check(ptr, sz) Void_t *ptr; size_t sz; -#endif +mem2mem_check(void *ptr, size_t sz) { mchunkptr p; unsigned char* m_ptr = (unsigned char*)BOUNDED_N(ptr, sz); @@ -133,7 +114,7 @@ mem2mem_check(ptr, sz) Void_t *ptr; size_t sz; m_ptr[i] = 0xFF; } m_ptr[sz] = MAGICBYTE(p); - return (Void_t*)m_ptr; + return (void*)m_ptr; } /* Convert a pointer to be free()d or realloc()ed to a valid chunk @@ -141,11 +122,7 @@ mem2mem_check(ptr, sz) Void_t *ptr; size_t sz; static mchunkptr internal_function -#if __STD_C -mem2chunk_check(Void_t* mem, unsigned char **magic_p) -#else -mem2chunk_check(mem, magic_p) Void_t* mem; unsigned char **magic_p; -#endif +mem2chunk_check(void* mem, unsigned char **magic_p) { mchunkptr p; INTERNAL_SIZE_T sz, c; @@ -200,11 +177,7 @@ mem2chunk_check(mem, magic_p) Void_t* mem; unsigned char **magic_p; static int internal_function -#if __STD_C top_check(void) -#else -top_check() -#endif { mchunkptr t = top(&main_arena); char* brk, * new_brk; @@ -246,14 +219,10 @@ top_check() return 0; } -static Void_t* -#if __STD_C -malloc_check(size_t sz, const Void_t *caller) -#else -malloc_check(sz, caller) size_t sz; const Void_t *caller; -#endif +static void* +malloc_check(size_t sz, const void *caller) { - Void_t *victim; + void *victim; if (sz+1 == 0) { MALLOC_FAILURE_ACTION; @@ -267,11 +236,7 @@ malloc_check(sz, caller) size_t sz; const Void_t *caller; } static void -#if __STD_C -free_check(Void_t* mem, const Void_t *caller) -#else -free_check(mem, caller) Void_t* mem; const Void_t *caller; -#endif +free_check(void* mem, const void *caller) { mchunkptr p; @@ -284,34 +249,20 @@ free_check(mem, caller) Void_t* mem; const Void_t *caller; malloc_printerr(check_action, "free(): invalid pointer", mem); return; } -#if HAVE_MMAP if (chunk_is_mmapped(p)) { (void)mutex_unlock(&main_arena.mutex); munmap_chunk(p); return; } -#endif -#if 0 /* Erase freed memory. */ - memset(mem, 0, chunksize(p) - (SIZE_SZ+1)); -#endif -#ifdef ATOMIC_FASTBINS _int_free(&main_arena, p, 1); -#else - _int_free(&main_arena, p); -#endif (void)mutex_unlock(&main_arena.mutex); } -static Void_t* -#if __STD_C -realloc_check(Void_t* oldmem, size_t bytes, const Void_t *caller) -#else -realloc_check(oldmem, bytes, caller) - Void_t* oldmem; size_t bytes; const Void_t *caller; -#endif +static void* +realloc_check(void* oldmem, size_t bytes, const void *caller) { INTERNAL_SIZE_T nb; - Void_t* newmem = 0; + void* newmem = 0; unsigned char *magic_p; if (bytes+1 == 0) { @@ -335,7 +286,6 @@ realloc_check(oldmem, bytes, caller) checked_request2size(bytes+1, nb); (void)mutex_lock(&main_arena.mutex); -#if HAVE_MMAP if (chunk_is_mmapped(oldp)) { #if HAVE_MREMAP mchunkptr newp = mremap_chunk(oldp, nb); @@ -358,27 +308,12 @@ realloc_check(oldmem, bytes, caller) } } } else { -#endif /* HAVE_MMAP */ if (top_check() >= 0) { INTERNAL_SIZE_T nb; checked_request2size(bytes + 1, nb); newmem = _int_realloc(&main_arena, oldp, oldsize, nb); } -#if 0 /* Erase freed memory. */ - if(newmem) - newp = mem2chunk(newmem); - nb = chunksize(newp); - if(oldp<newp || oldp>=chunk_at_offset(newp, nb)) { - memset((char*)oldmem + 2*sizeof(mbinptr), 0, - oldsize - (2*sizeof(mbinptr)+2*SIZE_SZ+1)); - } else if(nb > oldsize+SIZE_SZ) { - memset((char*)BOUNDED_N(chunk2mem(newp), bytes) + oldsize, - 0, nb - (oldsize+SIZE_SZ)); - } -#endif -#if HAVE_MMAP } -#endif /* mem2chunk_check changed the magic byte in the old chunk. If newmem is NULL, then the old chunk will still be used though, @@ -390,15 +325,10 @@ realloc_check(oldmem, bytes, caller) return mem2mem_check(newmem, bytes); } -static Void_t* -#if __STD_C -memalign_check(size_t alignment, size_t bytes, const Void_t *caller) -#else -memalign_check(alignment, bytes, caller) - size_t alignment; size_t bytes; const Void_t *caller; -#endif +static void* +memalign_check(size_t alignment, size_t bytes, const void *caller) { - Void_t* mem; + void* mem; if (alignment <= MALLOC_ALIGNMENT) return malloc_check(bytes, NULL); if (alignment < MINSIZE) alignment = MINSIZE; @@ -414,77 +344,6 @@ memalign_check(alignment, bytes, caller) return mem2mem_check(mem, bytes); } -#ifndef NO_THREADS - -# ifdef _LIBC -# ifndef SHARED - /* These routines are never needed in this configuration. */ -# define NO_STARTER -# endif -# endif - -# ifdef NO_STARTER -# undef NO_STARTER -# else - -/* The following hooks are used when the global initialization in - ptmalloc_init() hasn't completed yet. */ - -static Void_t* -#if __STD_C -malloc_starter(size_t sz, const Void_t *caller) -#else -malloc_starter(sz, caller) size_t sz; const Void_t *caller; -#endif -{ - Void_t* victim; - - victim = _int_malloc(&main_arena, sz); - - return victim ? BOUNDED_N(victim, sz) : 0; -} - -static Void_t* -#if __STD_C -memalign_starter(size_t align, size_t sz, const Void_t *caller) -#else -memalign_starter(align, sz, caller) size_t align, sz; const Void_t *caller; -#endif -{ - Void_t* victim; - - victim = _int_memalign(&main_arena, align, sz); - - return victim ? BOUNDED_N(victim, sz) : 0; -} - -static void -#if __STD_C -free_starter(Void_t* mem, const Void_t *caller) -#else -free_starter(mem, caller) Void_t* mem; const Void_t *caller; -#endif -{ - mchunkptr p; - - if(!mem) return; - p = mem2chunk(mem); -#if HAVE_MMAP - if (chunk_is_mmapped(p)) { - munmap_chunk(p); - return; - } -#endif -#ifdef ATOMIC_FASTBINS - _int_free(&main_arena, p, 1); -#else - _int_free(&main_arena, p); -#endif -} - -# endif /* !defiend NO_STARTER */ -#endif /* NO_THREADS */ - /* Get/set state: malloc_get_state() records the current state of all malloc variables (_except_ for the actual heap contents and `hook' @@ -529,7 +388,7 @@ struct malloc_save_state { unsigned long narenas; }; -Void_t* +void* public_gET_STATe(void) { struct malloc_save_state* ms; @@ -564,11 +423,7 @@ public_gET_STATe(void) ms->mmap_threshold = mp_.mmap_threshold; ms->check_action = check_action; ms->max_sbrked_mem = main_arena.max_system_mem; -#ifdef NO_THREADS - ms->max_total_mem = mp_.max_total_mem; -#else ms->max_total_mem = 0; -#endif ms->n_mmaps = mp_.n_mmaps; ms->max_n_mmaps = mp_.max_n_mmaps; ms->mmapped_mem = mp_.mmapped_mem; @@ -581,11 +436,11 @@ public_gET_STATe(void) ms->narenas = narenas; #endif (void)mutex_unlock(&main_arena.mutex); - return (Void_t*)ms; + return (void*)ms; } int -public_sET_STATe(Void_t* msptr) +public_sET_STATe(void* msptr) { struct malloc_save_state* ms = (struct malloc_save_state*)msptr; size_t i; @@ -656,9 +511,6 @@ public_sET_STATe(Void_t* msptr) mp_.mmap_threshold = ms->mmap_threshold; check_action = ms->check_action; main_arena.max_system_mem = ms->max_sbrked_mem; -#ifdef NO_THREADS - mp_.max_total_mem = ms->max_total_mem; -#endif mp_.n_mmaps = ms->n_mmaps; mp_.max_n_mmaps = ms->max_n_mmaps; mp_.mmapped_mem = ms->mmapped_mem; |