diff options
Diffstat (limited to 'malloc/malloc.c')
| -rw-r--r-- | malloc/malloc.c | 90 |
1 files changed, 42 insertions, 48 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index d6c33d035b..a4695b71fc 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -1581,11 +1581,11 @@ typedef struct malloc_chunk* mchunkptr; #if __STD_C -Void_t* _int_malloc(mstate, size_t); -void _int_free(mstate, Void_t*); -Void_t* _int_realloc(mstate, Void_t*, size_t); -Void_t* _int_memalign(mstate, size_t, size_t); -Void_t* _int_valloc(mstate, size_t); +static Void_t* _int_malloc(mstate, size_t); +static void _int_free(mstate, mchunkptr); +static Void_t* _int_realloc(mstate, mchunkptr, size_t); +static Void_t* _int_memalign(mstate, size_t, size_t); +static Void_t* _int_valloc(mstate, size_t); static Void_t* _int_pvalloc(mstate, size_t); /*static Void_t* cALLOc(size_t, size_t);*/ #ifndef _LIBC @@ -1632,12 +1632,12 @@ static void free_atfork(Void_t* mem, const Void_t *caller); #else -Void_t* _int_malloc(); -void _int_free(); -Void_t* _int_realloc(); -Void_t* _int_memalign(); -Void_t* _int_valloc(); -Void_t* _int_pvalloc(); +static Void_t* _int_malloc(); +static void _int_free(); +static Void_t* _int_realloc(); +static Void_t* _int_memalign(); +static Void_t* _int_valloc(); +static Void_t* _int_pvalloc(); /*static Void_t* cALLOc();*/ static Void_t** _int_icalloc(); static Void_t** _int_icomalloc(); @@ -3084,7 +3084,7 @@ static Void_t* sYSMALLOc(nb, av) INTERNAL_SIZE_T nb; mstate av; set_head(chunk_at_offset(old_top, old_size), (2*SIZE_SZ)|PREV_INUSE); set_foot(chunk_at_offset(old_top, old_size), (2*SIZE_SZ)); set_head(old_top, old_size|PREV_INUSE|NON_MAIN_ARENA); - _int_free(av, chunk2mem(old_top)); + _int_free(av, old_top); } else { set_head(old_top, (old_size + 2*SIZE_SZ)|PREV_INUSE); set_foot(old_top, (old_size + 2*SIZE_SZ)); @@ -3323,7 +3323,7 @@ static Void_t* sYSMALLOc(nb, av) INTERNAL_SIZE_T nb; mstate av; /* If possible, release the rest. */ if (old_size >= MINSIZE) { - _int_free(av, chunk2mem(old_top)); + _int_free(av, old_top); } } @@ -3622,7 +3622,7 @@ public_fREe(Void_t* mem) #else (void)mutex_lock(&ar_ptr->mutex); #endif - _int_free(ar_ptr, mem); + _int_free(ar_ptr, p); (void)mutex_unlock(&ar_ptr->mutex); } #ifdef libc_hidden_def @@ -3635,9 +3635,6 @@ public_rEALLOc(Void_t* oldmem, size_t bytes) mstate ar_ptr; INTERNAL_SIZE_T nb; /* padded request size */ - mchunkptr oldp; /* chunk corresponding to oldmem */ - INTERNAL_SIZE_T oldsize; /* its size */ - Void_t* newp; /* chunk to return */ __malloc_ptr_t (*hook) (__malloc_ptr_t, size_t, __const __malloc_ptr_t) = @@ -3652,8 +3649,10 @@ public_rEALLOc(Void_t* oldmem, size_t bytes) /* realloc of null is supposed to be same as malloc */ if (oldmem == 0) return public_mALLOc(bytes); - oldp = mem2chunk(oldmem); - oldsize = chunksize(oldp); + /* chunk corresponding to oldmem */ + const mchunkptr oldp = mem2chunk(oldmem); + /* its size */ + const INTERNAL_SIZE_T oldsize = chunksize(oldp); /* Little security check which won't hurt performance: the allocator never wrapps around at the end of the address space. @@ -3705,7 +3704,7 @@ public_rEALLOc(Void_t* oldmem, size_t bytes) tsd_setspecific(arena_key, (Void_t *)ar_ptr); #endif - newp = _int_realloc(ar_ptr, oldmem, bytes); + newp = _int_realloc(ar_ptr, oldp, bytes); (void)mutex_unlock(&ar_ptr->mutex); assert(!newp || chunk_is_mmapped(mem2chunk(newp)) || @@ -3728,7 +3727,7 @@ public_rEALLOc(Void_t* oldmem, size_t bytes) #else (void)mutex_lock(&ar_ptr->mutex); #endif - _int_free(ar_ptr, oldmem); + _int_free(ar_ptr, oldp); (void)mutex_unlock(&ar_ptr->mutex); } } @@ -4125,7 +4124,7 @@ public_mALLOPt(int p, int v) ------------------------------ malloc ------------------------------ */ -Void_t* +static Void_t* _int_malloc(mstate av, size_t bytes) { INTERNAL_SIZE_T nb; /* normalized request size */ @@ -4589,10 +4588,9 @@ _int_malloc(mstate av, size_t bytes) ------------------------------ free ------------------------------ */ -void -_int_free(mstate av, Void_t* mem) +static void +_int_free(mstate av, mchunkptr p) { - mchunkptr p; /* chunk corresponding to mem */ INTERNAL_SIZE_T size; /* its size */ mfastbinptr* fb; /* associated fastbin */ mchunkptr nextchunk; /* next contiguous chunk */ @@ -4604,7 +4602,6 @@ _int_free(mstate av, Void_t* mem) const char *errstr = NULL; - p = mem2chunk(mem); size = chunksize(p); /* Little security check which won't hurt performance: the @@ -4616,7 +4613,7 @@ _int_free(mstate av, Void_t* mem) { errstr = "free(): invalid pointer"; errout: - malloc_printerr (check_action, errstr, mem); + malloc_printerr (check_action, errstr, chunk2mem(p)); return; } /* We know that each chunk is at least MINSIZE bytes in size. */ @@ -4663,7 +4660,7 @@ _int_free(mstate av, Void_t* mem) } if (__builtin_expect (perturb_byte, 0)) - free_perturb (mem, size - SIZE_SZ); + free_perturb (chunk2mem(p), size - SIZE_SZ); p->fd = *fb; *fb = p; @@ -4707,7 +4704,7 @@ _int_free(mstate av, Void_t* mem) } if (__builtin_expect (perturb_byte, 0)) - free_perturb (mem, size - SIZE_SZ); + free_perturb (chunk2mem(p), size - SIZE_SZ); /* consolidate backward */ if (!prev_inuse(p)) { @@ -4943,13 +4940,10 @@ static void malloc_consolidate(av) mstate av; */ Void_t* -_int_realloc(mstate av, Void_t* oldmem, size_t bytes) +_int_realloc(mstate av, mchunkptr oldp, size_t bytes) { INTERNAL_SIZE_T nb; /* padded request size */ - mchunkptr oldp; /* chunk corresponding to oldmem */ - INTERNAL_SIZE_T oldsize; /* its size */ - mchunkptr newp; /* chunk to return */ INTERNAL_SIZE_T newsize; /* its size */ Void_t* newmem; /* corresponding user mem */ @@ -4972,15 +4966,15 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) checked_request2size(bytes, nb); - oldp = mem2chunk(oldmem); - oldsize = chunksize(oldp); + /* oldmem size */ + const INTERNAL_SIZE_T oldsize = chunksize(oldp); /* Simple tests for old block integrity. */ if (__builtin_expect (misaligned_chunk (oldp), 0)) { errstr = "realloc(): invalid pointer"; errout: - malloc_printerr (check_action, errstr, oldmem); + malloc_printerr (check_action, errstr, chunk2mem(oldp)); return NULL; } if (__builtin_expect (oldp->size <= 2 * SIZE_SZ, 0) @@ -5054,7 +5048,7 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) */ copysize = oldsize - SIZE_SZ; - s = (INTERNAL_SIZE_T*)(oldmem); + s = (INTERNAL_SIZE_T*)(chunk2mem(oldp)); d = (INTERNAL_SIZE_T*)(newmem); ncopies = copysize / sizeof(INTERNAL_SIZE_T); assert(ncopies >= 3); @@ -5080,7 +5074,7 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) } } - _int_free(av, oldmem); + _int_free(av, oldp); check_inuse_chunk(av, newp); return chunk2mem(newp); } @@ -5104,7 +5098,7 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) (av != &main_arena ? NON_MAIN_ARENA : 0)); /* Mark remainder as inuse so free() won't complain */ set_inuse_bit_at_offset(remainder, remainder_size); - _int_free(av, chunk2mem(remainder)); + _int_free(av, remainder); } check_inuse_chunk(av, newp); @@ -5129,7 +5123,7 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) /* don't need to remap if still within same page */ if (oldsize == newsize - offset) - return oldmem; + return chunk2mem(oldp); cp = (char*)mremap((char*)oldp - offset, oldsize + offset, newsize, 1); @@ -5157,13 +5151,13 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) /* Note the extra SIZE_SZ overhead. */ if ((unsigned long)(oldsize) >= (unsigned long)(nb + SIZE_SZ)) - newmem = oldmem; /* do nothing */ + newmem = chunk2mem(oldp); /* do nothing */ else { /* Must alloc, copy, free. */ newmem = _int_malloc(av, nb - MALLOC_ALIGN_MASK); if (newmem != 0) { - MALLOC_COPY(newmem, oldmem, oldsize - 2*SIZE_SZ); - _int_free(av, oldmem); + MALLOC_COPY(newmem, chunk2mem(oldp), oldsize - 2*SIZE_SZ); + _int_free(av, oldp); } } return newmem; @@ -5181,7 +5175,7 @@ _int_realloc(mstate av, Void_t* oldmem, size_t bytes) ------------------------------ memalign ------------------------------ */ -Void_t* +static Void_t* _int_memalign(mstate av, size_t alignment, size_t bytes) { INTERNAL_SIZE_T nb; /* padded request size */ @@ -5257,7 +5251,7 @@ _int_memalign(mstate av, size_t alignment, size_t bytes) (av != &main_arena ? NON_MAIN_ARENA : 0)); set_inuse_bit_at_offset(newp, newsize); set_head_size(p, leadsize | (av != &main_arena ? NON_MAIN_ARENA : 0)); - _int_free(av, chunk2mem(p)); + _int_free(av, p); p = newp; assert (newsize >= nb && @@ -5273,7 +5267,7 @@ _int_memalign(mstate av, size_t alignment, size_t bytes) set_head(remainder, remainder_size | PREV_INUSE | (av != &main_arena ? NON_MAIN_ARENA : 0)); set_head_size(p, nb); - _int_free(av, chunk2mem(remainder)); + _int_free(av, remainder); } } @@ -5514,7 +5508,7 @@ mstate av; size_t n_elements; size_t* sizes; int opts; Void_t* chunks[]; ------------------------------ valloc ------------------------------ */ -Void_t* +static Void_t* #if __STD_C _int_valloc(mstate av, size_t bytes) #else @@ -5531,7 +5525,7 @@ _int_valloc(av, bytes) mstate av; size_t bytes; */ -Void_t* +static Void_t* #if __STD_C _int_pvalloc(mstate av, size_t bytes) #else |