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| author | Ulrich Drepper <drepper@redhat.com> | 2007-05-13 20:32:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2007-05-13 20:32:57 +0000 |
| commit | bf98bd2966b728e29cb05eb562a711b819fec22e (patch) | |
| tree | dff596726a6839dd430780f9d038b2c30479f471 /malloc/malloc.c | |
| parent | 11ed671328d01ce486e11a80f66bf596d8b0fd44 (diff) | |
| download | glibc-bf98bd2966b728e29cb05eb562a711b819fec22e.tar.gz glibc-bf98bd2966b728e29cb05eb562a711b819fec22e.tar.xz glibc-bf98bd2966b728e29cb05eb562a711b819fec22e.zip | |
[MALLOC_DEBUG]: Keep track of current maximum number of mmaps. n_mmaps_max is the target.
Diffstat (limited to 'malloc/malloc.c')
| -rw-r--r-- | malloc/malloc.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index 8ae941c597..0a947a4ab8 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -2343,6 +2343,9 @@ struct malloc_par { /* Memory map support */ int n_mmaps; int n_mmaps_max; +#if MALLOC_DEBUG + int n_mmaps_cmax; +#endif int max_n_mmaps; /* the mmap_threshold is dynamic, until the user sets it manually, at which point we need to disable any @@ -2858,7 +2861,8 @@ static void do_check_malloc_state(mstate av) assert(total <= (unsigned long)(mp_.max_total_mem)); assert(mp_.n_mmaps >= 0); #endif - assert(mp_.n_mmaps <= mp_.n_mmaps_max); + assert(mp_.n_mmaps <= mp_.n_mmaps_cmax); + assert(mp_.n_mmaps_max <= mp_.n_mmaps_cmax); assert(mp_.n_mmaps <= mp_.max_n_mmaps); assert((unsigned long)(av->system_mem) <= @@ -3456,6 +3460,13 @@ munmap_chunk(p) mchunkptr p; } mp_.n_mmaps--; +#if MALLOC_DEBUG + if (mp_.n_mmaps_cmax > mp_.n_mmaps_max) + { + assert (mp_.n_mmaps_cmax == mp_.n_mmaps + 1); + mp_.n_mmaps_cmax = mp_.n_mmaps; + } +#endif mp_.mmapped_mem -= total_size; int ret __attribute__ ((unused)) = munmap((char *)block, total_size); @@ -5371,6 +5382,9 @@ mstate av; size_t n_elements; size_t* sizes; int opts; Void_t* chunks[]; mp_.n_mmaps_max = 0; mem = _int_malloc(av, size); mp_.n_mmaps_max = mmx; /* reset mmap */ +#if MALLOC_DEBUG + mp_.n_mmaps_cmax = mmx; +#endif if (mem == 0) return 0; @@ -5696,8 +5710,17 @@ int mALLOPt(param_number, value) int param_number; int value; res = 0; else #endif - mp_.n_mmaps_max = value; - mp_.no_dyn_threshold = 1; + { +#if MALLOC_DEBUG + if (mp_.n_mmaps <= value) + mp_.n_mmaps_cmax = value; + else + mp_.n_mmaps_cmax = mp_.n_mmaps; +#endif + + mp_.n_mmaps_max = value; + mp_.no_dyn_threshold = 1; + } break; case M_CHECK_ACTION: |