diff options
Diffstat (limited to 'malloc')
| -rw-r--r-- | malloc/malloc.c | 260 |
1 files changed, 135 insertions, 125 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index 1120d4df84..92ad9f9ab3 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -4986,154 +4986,162 @@ __posix_memalign (void **memptr, size_t alignment, size_t size) } weak_alias (__posix_memalign, posix_memalign) - -int -malloc_info (int options, FILE *fp) +static inline void +mi_arena (mstate ar_ptr, + FILE *fp, + size_t *total_nblocks, + size_t *total_nfastblocks, + size_t *total_avail, + size_t *total_fastavail, + size_t *total_system, + size_t *total_max_system, + size_t *total_aspace, + size_t *total_aspace_mprotect) { - /* For now, at least. */ - if (options != 0) - return EINVAL; - int n = 0; - size_t total_nblocks = 0; - size_t total_nfastblocks = 0; - size_t total_avail = 0; - size_t total_fastavail = 0; - size_t total_system = 0; - size_t total_max_system = 0; - size_t total_aspace = 0; - size_t total_aspace_mprotect = 0; - void - mi_arena (mstate ar_ptr) - { - fprintf (fp, "<heap nr=\"%d\">\n<sizes>\n", n++); + fprintf (fp, "<heap nr=\"%d\">\n<sizes>\n", n++); - size_t nblocks = 0; - size_t nfastblocks = 0; - size_t avail = 0; - size_t fastavail = 0; - struct - { - size_t from; - size_t to; - size_t total; - size_t count; - } sizes[NFASTBINS + NBINS - 1]; + size_t nblocks = 0; + size_t nfastblocks = 0; + size_t avail = 0; + size_t fastavail = 0; + struct + { + size_t from; + size_t to; + size_t total; + size_t count; + } sizes[NFASTBINS + NBINS - 1]; #define nsizes (sizeof (sizes) / sizeof (sizes[0])) - mutex_lock (&ar_ptr->mutex); - - for (size_t i = 0; i < NFASTBINS; ++i) - { - mchunkptr p = fastbin (ar_ptr, i); - if (p != NULL) - { - size_t nthissize = 0; - size_t thissize = chunksize (p); + mutex_lock (&ar_ptr->mutex); + for (size_t i = 0; i < NFASTBINS; ++i) + { + mchunkptr p = fastbin (ar_ptr, i); + if (p != NULL) + { + size_t nthissize = 0; + size_t thissize = chunksize (p); - while (p != NULL) - { - ++nthissize; - p = p->fd; - } + while (p != NULL) + { + ++nthissize; + p = p->fd; + } - fastavail += nthissize * thissize; - nfastblocks += nthissize; - sizes[i].from = thissize - (MALLOC_ALIGNMENT - 1); - sizes[i].to = thissize; - sizes[i].count = nthissize; - } - else - sizes[i].from = sizes[i].to = sizes[i].count = 0; + fastavail += nthissize * thissize; + nfastblocks += nthissize; + sizes[i].from = thissize - (MALLOC_ALIGNMENT - 1); + sizes[i].to = thissize; + sizes[i].count = nthissize; + } + else + sizes[i].from = sizes[i].to = sizes[i].count = 0; - sizes[i].total = sizes[i].count * sizes[i].to; - } + sizes[i].total = sizes[i].count * sizes[i].to; + } - mbinptr bin; - struct malloc_chunk *r; + mbinptr bin; + struct malloc_chunk *r; - for (size_t i = 1; i < NBINS; ++i) - { - bin = bin_at (ar_ptr, i); - r = bin->fd; - sizes[NFASTBINS - 1 + i].from = ~((size_t) 0); - sizes[NFASTBINS - 1 + i].to = sizes[NFASTBINS - 1 + i].total - = sizes[NFASTBINS - 1 + i].count = 0; - - if (r != NULL) - while (r != bin) - { - ++sizes[NFASTBINS - 1 + i].count; - sizes[NFASTBINS - 1 + i].total += r->size; - sizes[NFASTBINS - 1 + i].from - = MIN (sizes[NFASTBINS - 1 + i].from, r->size); - sizes[NFASTBINS - 1 + i].to = MAX (sizes[NFASTBINS - 1 + i].to, - r->size); - - r = r->fd; - } + for (size_t i = 1; i < NBINS; ++i) + { + bin = bin_at (ar_ptr, i); + r = bin->fd; + sizes[NFASTBINS - 1 + i].from = ~((size_t) 0); + sizes[NFASTBINS - 1 + i].to = sizes[NFASTBINS - 1 + i].total + = sizes[NFASTBINS - 1 + i].count = 0; + + if (r != NULL) + while (r != bin) + { + ++sizes[NFASTBINS - 1 + i].count; + sizes[NFASTBINS - 1 + i].total += r->size; + sizes[NFASTBINS - 1 + i].from + = MIN (sizes[NFASTBINS - 1 + i].from, r->size); + sizes[NFASTBINS - 1 + i].to = MAX (sizes[NFASTBINS - 1 + i].to, + r->size); + + r = r->fd; + } - if (sizes[NFASTBINS - 1 + i].count == 0) - sizes[NFASTBINS - 1 + i].from = 0; - nblocks += sizes[NFASTBINS - 1 + i].count; - avail += sizes[NFASTBINS - 1 + i].total; - } + if (sizes[NFASTBINS - 1 + i].count == 0) + sizes[NFASTBINS - 1 + i].from = 0; + nblocks += sizes[NFASTBINS - 1 + i].count; + avail += sizes[NFASTBINS - 1 + i].total; + } - mutex_unlock (&ar_ptr->mutex); + mutex_unlock (&ar_ptr->mutex); - total_nfastblocks += nfastblocks; - total_fastavail += fastavail; + *total_nfastblocks += nfastblocks; + *total_fastavail += fastavail; - total_nblocks += nblocks; - total_avail += avail; + *total_nblocks += nblocks; + *total_avail += avail; - for (size_t i = 0; i < nsizes; ++i) - if (sizes[i].count != 0 && i != NFASTBINS) - fprintf (fp, " \ + for (size_t i = 0; i < nsizes; ++i) + if (sizes[i].count != 0 && i != NFASTBINS) + fprintf (fp, " \ <size from=\"%zu\" to=\"%zu\" total=\"%zu\" count=\"%zu\"/>\n", - sizes[i].from, sizes[i].to, sizes[i].total, sizes[i].count); + sizes[i].from, sizes[i].to, sizes[i].total, sizes[i].count); - if (sizes[NFASTBINS].count != 0) - fprintf (fp, "\ + if (sizes[NFASTBINS].count != 0) + fprintf (fp, "\ <unsorted from=\"%zu\" to=\"%zu\" total=\"%zu\" count=\"%zu\"/>\n", - sizes[NFASTBINS].from, sizes[NFASTBINS].to, - sizes[NFASTBINS].total, sizes[NFASTBINS].count); + sizes[NFASTBINS].from, sizes[NFASTBINS].to, + sizes[NFASTBINS].total, sizes[NFASTBINS].count); - total_system += ar_ptr->system_mem; - total_max_system += ar_ptr->max_system_mem; + *total_system += ar_ptr->system_mem; + *total_max_system += ar_ptr->max_system_mem; - fprintf (fp, - "</sizes>\n<total type=\"fast\" count=\"%zu\" size=\"%zu\"/>\n" - "<total type=\"rest\" count=\"%zu\" size=\"%zu\"/>\n" - "<system type=\"current\" size=\"%zu\"/>\n" - "<system type=\"max\" size=\"%zu\"/>\n", - nfastblocks, fastavail, nblocks, avail, - ar_ptr->system_mem, ar_ptr->max_system_mem); + fprintf (fp, + "</sizes>\n<total type=\"fast\" count=\"%zu\" size=\"%zu\"/>\n" + "<total type=\"rest\" count=\"%zu\" size=\"%zu\"/>\n" + "<system type=\"current\" size=\"%zu\"/>\n" + "<system type=\"max\" size=\"%zu\"/>\n", + nfastblocks, fastavail, nblocks, avail, + ar_ptr->system_mem, ar_ptr->max_system_mem); - if (ar_ptr != &main_arena) - { - heap_info *heap = heap_for_ptr (top (ar_ptr)); - fprintf (fp, - "<aspace type=\"total\" size=\"%zu\"/>\n" - "<aspace type=\"mprotect\" size=\"%zu\"/>\n", - heap->size, heap->mprotect_size); - total_aspace += heap->size; - total_aspace_mprotect += heap->mprotect_size; - } - else - { - fprintf (fp, - "<aspace type=\"total\" size=\"%zu\"/>\n" - "<aspace type=\"mprotect\" size=\"%zu\"/>\n", - ar_ptr->system_mem, ar_ptr->system_mem); - total_aspace += ar_ptr->system_mem; - total_aspace_mprotect += ar_ptr->system_mem; - } + if (ar_ptr != &main_arena) + { + heap_info *heap = heap_for_ptr (top (ar_ptr)); + fprintf (fp, + "<aspace type=\"total\" size=\"%zu\"/>\n" + "<aspace type=\"mprotect\" size=\"%zu\"/>\n", + heap->size, heap->mprotect_size); + *total_aspace += heap->size; + *total_aspace_mprotect += heap->mprotect_size; + } + else + { + fprintf (fp, + "<aspace type=\"total\" size=\"%zu\"/>\n" + "<aspace type=\"mprotect\" size=\"%zu\"/>\n", + ar_ptr->system_mem, ar_ptr->system_mem); + *total_aspace += ar_ptr->system_mem; + *total_aspace_mprotect += ar_ptr->system_mem; + } - fputs ("</heap>\n", fp); - } + fputs ("</heap>\n", fp); +} + +int +malloc_info (int options, FILE *fp) +{ + /* For now, at least. */ + if (options != 0) + return EINVAL; + + size_t total_nblocks = 0; + size_t total_nfastblocks = 0; + size_t total_avail = 0; + size_t total_fastavail = 0; + size_t total_system = 0; + size_t total_max_system = 0; + size_t total_aspace = 0; + size_t total_aspace_mprotect = 0; if (__malloc_initialized < 0) ptmalloc_init (); @@ -5144,7 +5152,9 @@ malloc_info (int options, FILE *fp) mstate ar_ptr = &main_arena; do { - mi_arena (ar_ptr); + mi_arena (ar_ptr, fp, &total_nblocks, &total_nfastblocks, &total_avail, + &total_fastavail, &total_system, &total_max_system, + &total_aspace, &total_aspace_mprotect); ar_ptr = ar_ptr->next; } while (ar_ptr != &main_arena); |