mirror of
https://github.com/jemalloc/jemalloc.git
synced 2026-04-20 09:21:14 +03:00
122449b073
Implement Valgrind support, as well as the redzone and quarantine features, which help Valgrind detect memory errors. Redzones are only implemented for small objects because the changes necessary to support redzones around large and huge objects are complicated by in-place reallocation, to the point that it isn't clear that the maintenance burden is worth the incremental improvement to Valgrind support. Merge arena_salloc() and arena_salloc_demote(). Refactor i[v]salloc() to expose the 'demote' option.
1382 lines
38 KiB
C
1382 lines
38 KiB
C
#define JEMALLOC_CTL_C_
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#include "jemalloc/internal/jemalloc_internal.h"
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/******************************************************************************/
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/* Data. */
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/*
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* ctl_mtx protects the following:
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* - ctl_stats.*
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* - opt_prof_active
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*/
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static malloc_mutex_t ctl_mtx;
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static bool ctl_initialized;
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static uint64_t ctl_epoch;
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static ctl_stats_t ctl_stats;
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/******************************************************************************/
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/* Function prototypes for non-inline static functions. */
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#define CTL_PROTO(n) \
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static int n##_ctl(const size_t *mib, size_t miblen, void *oldp, \
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size_t *oldlenp, void *newp, size_t newlen);
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#define INDEX_PROTO(n) \
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const ctl_node_t *n##_index(const size_t *mib, size_t miblen, \
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size_t i);
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static bool ctl_arena_init(ctl_arena_stats_t *astats);
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static void ctl_arena_clear(ctl_arena_stats_t *astats);
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static void ctl_arena_stats_amerge(ctl_arena_stats_t *cstats,
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arena_t *arena);
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static void ctl_arena_stats_smerge(ctl_arena_stats_t *sstats,
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ctl_arena_stats_t *astats);
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static void ctl_arena_refresh(arena_t *arena, unsigned i);
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static void ctl_refresh(void);
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static bool ctl_init(void);
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static int ctl_lookup(const char *name, ctl_node_t const **nodesp,
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size_t *mibp, size_t *depthp);
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CTL_PROTO(version)
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CTL_PROTO(epoch)
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CTL_PROTO(thread_tcache_enabled)
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CTL_PROTO(thread_tcache_flush)
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CTL_PROTO(thread_arena)
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CTL_PROTO(thread_allocated)
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CTL_PROTO(thread_allocatedp)
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CTL_PROTO(thread_deallocated)
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CTL_PROTO(thread_deallocatedp)
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CTL_PROTO(config_debug)
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CTL_PROTO(config_dss)
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CTL_PROTO(config_fill)
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CTL_PROTO(config_lazy_lock)
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CTL_PROTO(config_prof)
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CTL_PROTO(config_prof_libgcc)
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CTL_PROTO(config_prof_libunwind)
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CTL_PROTO(config_stats)
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CTL_PROTO(config_tcache)
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CTL_PROTO(config_tls)
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CTL_PROTO(config_utrace)
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CTL_PROTO(config_valgrind)
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CTL_PROTO(config_xmalloc)
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CTL_PROTO(opt_abort)
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CTL_PROTO(opt_lg_chunk)
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CTL_PROTO(opt_narenas)
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CTL_PROTO(opt_lg_dirty_mult)
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CTL_PROTO(opt_stats_print)
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CTL_PROTO(opt_junk)
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CTL_PROTO(opt_zero)
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CTL_PROTO(opt_quarantine)
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CTL_PROTO(opt_redzone)
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CTL_PROTO(opt_utrace)
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CTL_PROTO(opt_valgrind)
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CTL_PROTO(opt_xmalloc)
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CTL_PROTO(opt_tcache)
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CTL_PROTO(opt_lg_tcache_max)
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CTL_PROTO(opt_prof)
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CTL_PROTO(opt_prof_prefix)
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CTL_PROTO(opt_prof_active)
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CTL_PROTO(opt_lg_prof_sample)
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CTL_PROTO(opt_lg_prof_interval)
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CTL_PROTO(opt_prof_gdump)
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CTL_PROTO(opt_prof_leak)
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CTL_PROTO(opt_prof_accum)
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CTL_PROTO(arenas_bin_i_size)
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CTL_PROTO(arenas_bin_i_nregs)
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CTL_PROTO(arenas_bin_i_run_size)
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INDEX_PROTO(arenas_bin_i)
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CTL_PROTO(arenas_lrun_i_size)
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INDEX_PROTO(arenas_lrun_i)
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CTL_PROTO(arenas_narenas)
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CTL_PROTO(arenas_initialized)
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CTL_PROTO(arenas_quantum)
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CTL_PROTO(arenas_page)
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CTL_PROTO(arenas_tcache_max)
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CTL_PROTO(arenas_nbins)
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CTL_PROTO(arenas_nhbins)
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CTL_PROTO(arenas_nlruns)
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CTL_PROTO(arenas_purge)
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CTL_PROTO(prof_active)
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CTL_PROTO(prof_dump)
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CTL_PROTO(prof_interval)
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CTL_PROTO(stats_chunks_current)
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CTL_PROTO(stats_chunks_total)
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CTL_PROTO(stats_chunks_high)
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CTL_PROTO(stats_huge_allocated)
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CTL_PROTO(stats_huge_nmalloc)
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CTL_PROTO(stats_huge_ndalloc)
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CTL_PROTO(stats_arenas_i_small_allocated)
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CTL_PROTO(stats_arenas_i_small_nmalloc)
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CTL_PROTO(stats_arenas_i_small_ndalloc)
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CTL_PROTO(stats_arenas_i_small_nrequests)
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CTL_PROTO(stats_arenas_i_large_allocated)
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CTL_PROTO(stats_arenas_i_large_nmalloc)
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CTL_PROTO(stats_arenas_i_large_ndalloc)
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CTL_PROTO(stats_arenas_i_large_nrequests)
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CTL_PROTO(stats_arenas_i_bins_j_allocated)
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CTL_PROTO(stats_arenas_i_bins_j_nmalloc)
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CTL_PROTO(stats_arenas_i_bins_j_ndalloc)
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CTL_PROTO(stats_arenas_i_bins_j_nrequests)
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CTL_PROTO(stats_arenas_i_bins_j_nfills)
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CTL_PROTO(stats_arenas_i_bins_j_nflushes)
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CTL_PROTO(stats_arenas_i_bins_j_nruns)
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CTL_PROTO(stats_arenas_i_bins_j_nreruns)
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CTL_PROTO(stats_arenas_i_bins_j_curruns)
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INDEX_PROTO(stats_arenas_i_bins_j)
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CTL_PROTO(stats_arenas_i_lruns_j_nmalloc)
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CTL_PROTO(stats_arenas_i_lruns_j_ndalloc)
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CTL_PROTO(stats_arenas_i_lruns_j_nrequests)
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CTL_PROTO(stats_arenas_i_lruns_j_curruns)
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INDEX_PROTO(stats_arenas_i_lruns_j)
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CTL_PROTO(stats_arenas_i_nthreads)
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CTL_PROTO(stats_arenas_i_pactive)
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CTL_PROTO(stats_arenas_i_pdirty)
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CTL_PROTO(stats_arenas_i_mapped)
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CTL_PROTO(stats_arenas_i_npurge)
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CTL_PROTO(stats_arenas_i_nmadvise)
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CTL_PROTO(stats_arenas_i_purged)
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INDEX_PROTO(stats_arenas_i)
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CTL_PROTO(stats_cactive)
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CTL_PROTO(stats_allocated)
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CTL_PROTO(stats_active)
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CTL_PROTO(stats_mapped)
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/******************************************************************************/
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/* mallctl tree. */
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/* Maximum tree depth. */
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#define CTL_MAX_DEPTH 6
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#define NAME(n) true, {.named = {n
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#define CHILD(c) sizeof(c##_node) / sizeof(ctl_node_t), c##_node}}, NULL
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#define CTL(c) 0, NULL}}, c##_ctl
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/*
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* Only handles internal indexed nodes, since there are currently no external
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* ones.
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*/
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#define INDEX(i) false, {.indexed = {i##_index}}, NULL
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static const ctl_node_t tcache_node[] = {
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{NAME("enabled"), CTL(thread_tcache_enabled)},
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{NAME("flush"), CTL(thread_tcache_flush)}
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};
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static const ctl_node_t thread_node[] = {
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{NAME("arena"), CTL(thread_arena)},
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{NAME("allocated"), CTL(thread_allocated)},
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{NAME("allocatedp"), CTL(thread_allocatedp)},
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{NAME("deallocated"), CTL(thread_deallocated)},
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{NAME("deallocatedp"), CTL(thread_deallocatedp)},
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{NAME("tcache"), CHILD(tcache)}
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};
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static const ctl_node_t config_node[] = {
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{NAME("debug"), CTL(config_debug)},
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{NAME("dss"), CTL(config_dss)},
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{NAME("fill"), CTL(config_fill)},
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{NAME("lazy_lock"), CTL(config_lazy_lock)},
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{NAME("prof"), CTL(config_prof)},
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{NAME("prof_libgcc"), CTL(config_prof_libgcc)},
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{NAME("prof_libunwind"), CTL(config_prof_libunwind)},
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{NAME("stats"), CTL(config_stats)},
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{NAME("tcache"), CTL(config_tcache)},
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{NAME("tls"), CTL(config_tls)},
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{NAME("utrace"), CTL(config_utrace)},
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{NAME("valgrind"), CTL(config_valgrind)},
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{NAME("xmalloc"), CTL(config_xmalloc)}
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};
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static const ctl_node_t opt_node[] = {
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{NAME("abort"), CTL(opt_abort)},
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{NAME("lg_chunk"), CTL(opt_lg_chunk)},
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{NAME("narenas"), CTL(opt_narenas)},
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{NAME("lg_dirty_mult"), CTL(opt_lg_dirty_mult)},
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{NAME("stats_print"), CTL(opt_stats_print)},
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{NAME("junk"), CTL(opt_junk)},
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{NAME("zero"), CTL(opt_zero)},
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{NAME("quarantine"), CTL(opt_quarantine)},
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{NAME("redzone"), CTL(opt_redzone)},
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{NAME("utrace"), CTL(opt_utrace)},
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{NAME("valgrind"), CTL(opt_valgrind)},
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{NAME("xmalloc"), CTL(opt_xmalloc)},
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{NAME("tcache"), CTL(opt_tcache)},
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{NAME("lg_tcache_max"), CTL(opt_lg_tcache_max)},
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{NAME("prof"), CTL(opt_prof)},
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{NAME("prof_prefix"), CTL(opt_prof_prefix)},
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{NAME("prof_active"), CTL(opt_prof_active)},
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{NAME("lg_prof_sample"), CTL(opt_lg_prof_sample)},
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{NAME("lg_prof_interval"), CTL(opt_lg_prof_interval)},
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{NAME("prof_gdump"), CTL(opt_prof_gdump)},
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{NAME("prof_leak"), CTL(opt_prof_leak)},
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{NAME("prof_accum"), CTL(opt_prof_accum)}
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};
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static const ctl_node_t arenas_bin_i_node[] = {
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{NAME("size"), CTL(arenas_bin_i_size)},
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{NAME("nregs"), CTL(arenas_bin_i_nregs)},
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{NAME("run_size"), CTL(arenas_bin_i_run_size)}
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};
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static const ctl_node_t super_arenas_bin_i_node[] = {
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{NAME(""), CHILD(arenas_bin_i)}
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};
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static const ctl_node_t arenas_bin_node[] = {
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{INDEX(arenas_bin_i)}
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};
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static const ctl_node_t arenas_lrun_i_node[] = {
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{NAME("size"), CTL(arenas_lrun_i_size)}
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};
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static const ctl_node_t super_arenas_lrun_i_node[] = {
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{NAME(""), CHILD(arenas_lrun_i)}
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};
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static const ctl_node_t arenas_lrun_node[] = {
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{INDEX(arenas_lrun_i)}
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};
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static const ctl_node_t arenas_node[] = {
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{NAME("narenas"), CTL(arenas_narenas)},
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{NAME("initialized"), CTL(arenas_initialized)},
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{NAME("quantum"), CTL(arenas_quantum)},
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{NAME("page"), CTL(arenas_page)},
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{NAME("tcache_max"), CTL(arenas_tcache_max)},
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{NAME("nbins"), CTL(arenas_nbins)},
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{NAME("nhbins"), CTL(arenas_nhbins)},
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{NAME("bin"), CHILD(arenas_bin)},
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{NAME("nlruns"), CTL(arenas_nlruns)},
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{NAME("lrun"), CHILD(arenas_lrun)},
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{NAME("purge"), CTL(arenas_purge)}
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};
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static const ctl_node_t prof_node[] = {
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{NAME("active"), CTL(prof_active)},
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{NAME("dump"), CTL(prof_dump)},
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{NAME("interval"), CTL(prof_interval)}
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};
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static const ctl_node_t stats_chunks_node[] = {
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{NAME("current"), CTL(stats_chunks_current)},
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{NAME("total"), CTL(stats_chunks_total)},
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{NAME("high"), CTL(stats_chunks_high)}
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};
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static const ctl_node_t stats_huge_node[] = {
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{NAME("allocated"), CTL(stats_huge_allocated)},
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{NAME("nmalloc"), CTL(stats_huge_nmalloc)},
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{NAME("ndalloc"), CTL(stats_huge_ndalloc)}
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};
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static const ctl_node_t stats_arenas_i_small_node[] = {
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{NAME("allocated"), CTL(stats_arenas_i_small_allocated)},
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{NAME("nmalloc"), CTL(stats_arenas_i_small_nmalloc)},
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{NAME("ndalloc"), CTL(stats_arenas_i_small_ndalloc)},
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{NAME("nrequests"), CTL(stats_arenas_i_small_nrequests)}
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};
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static const ctl_node_t stats_arenas_i_large_node[] = {
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{NAME("allocated"), CTL(stats_arenas_i_large_allocated)},
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{NAME("nmalloc"), CTL(stats_arenas_i_large_nmalloc)},
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{NAME("ndalloc"), CTL(stats_arenas_i_large_ndalloc)},
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{NAME("nrequests"), CTL(stats_arenas_i_large_nrequests)}
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};
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static const ctl_node_t stats_arenas_i_bins_j_node[] = {
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{NAME("allocated"), CTL(stats_arenas_i_bins_j_allocated)},
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{NAME("nmalloc"), CTL(stats_arenas_i_bins_j_nmalloc)},
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{NAME("ndalloc"), CTL(stats_arenas_i_bins_j_ndalloc)},
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{NAME("nrequests"), CTL(stats_arenas_i_bins_j_nrequests)},
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{NAME("nfills"), CTL(stats_arenas_i_bins_j_nfills)},
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{NAME("nflushes"), CTL(stats_arenas_i_bins_j_nflushes)},
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{NAME("nruns"), CTL(stats_arenas_i_bins_j_nruns)},
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{NAME("nreruns"), CTL(stats_arenas_i_bins_j_nreruns)},
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{NAME("curruns"), CTL(stats_arenas_i_bins_j_curruns)}
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};
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static const ctl_node_t super_stats_arenas_i_bins_j_node[] = {
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{NAME(""), CHILD(stats_arenas_i_bins_j)}
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};
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static const ctl_node_t stats_arenas_i_bins_node[] = {
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{INDEX(stats_arenas_i_bins_j)}
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};
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static const ctl_node_t stats_arenas_i_lruns_j_node[] = {
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{NAME("nmalloc"), CTL(stats_arenas_i_lruns_j_nmalloc)},
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{NAME("ndalloc"), CTL(stats_arenas_i_lruns_j_ndalloc)},
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{NAME("nrequests"), CTL(stats_arenas_i_lruns_j_nrequests)},
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{NAME("curruns"), CTL(stats_arenas_i_lruns_j_curruns)}
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};
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static const ctl_node_t super_stats_arenas_i_lruns_j_node[] = {
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{NAME(""), CHILD(stats_arenas_i_lruns_j)}
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};
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static const ctl_node_t stats_arenas_i_lruns_node[] = {
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{INDEX(stats_arenas_i_lruns_j)}
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};
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static const ctl_node_t stats_arenas_i_node[] = {
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{NAME("nthreads"), CTL(stats_arenas_i_nthreads)},
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{NAME("pactive"), CTL(stats_arenas_i_pactive)},
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{NAME("pdirty"), CTL(stats_arenas_i_pdirty)},
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{NAME("mapped"), CTL(stats_arenas_i_mapped)},
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{NAME("npurge"), CTL(stats_arenas_i_npurge)},
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{NAME("nmadvise"), CTL(stats_arenas_i_nmadvise)},
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{NAME("purged"), CTL(stats_arenas_i_purged)},
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{NAME("small"), CHILD(stats_arenas_i_small)},
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{NAME("large"), CHILD(stats_arenas_i_large)},
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{NAME("bins"), CHILD(stats_arenas_i_bins)},
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{NAME("lruns"), CHILD(stats_arenas_i_lruns)}
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};
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static const ctl_node_t super_stats_arenas_i_node[] = {
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{NAME(""), CHILD(stats_arenas_i)}
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};
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static const ctl_node_t stats_arenas_node[] = {
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{INDEX(stats_arenas_i)}
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};
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static const ctl_node_t stats_node[] = {
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{NAME("cactive"), CTL(stats_cactive)},
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{NAME("allocated"), CTL(stats_allocated)},
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{NAME("active"), CTL(stats_active)},
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{NAME("mapped"), CTL(stats_mapped)},
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{NAME("chunks"), CHILD(stats_chunks)},
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{NAME("huge"), CHILD(stats_huge)},
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{NAME("arenas"), CHILD(stats_arenas)}
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};
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static const ctl_node_t root_node[] = {
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{NAME("version"), CTL(version)},
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{NAME("epoch"), CTL(epoch)},
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{NAME("thread"), CHILD(thread)},
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{NAME("config"), CHILD(config)},
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{NAME("opt"), CHILD(opt)},
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{NAME("arenas"), CHILD(arenas)},
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{NAME("prof"), CHILD(prof)},
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{NAME("stats"), CHILD(stats)}
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};
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static const ctl_node_t super_root_node[] = {
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{NAME(""), CHILD(root)}
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};
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#undef NAME
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#undef CHILD
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#undef CTL
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#undef INDEX
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/******************************************************************************/
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static bool
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ctl_arena_init(ctl_arena_stats_t *astats)
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{
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if (astats->lstats == NULL) {
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astats->lstats = (malloc_large_stats_t *)base_alloc(nlclasses *
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sizeof(malloc_large_stats_t));
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if (astats->lstats == NULL)
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return (true);
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}
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return (false);
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}
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static void
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ctl_arena_clear(ctl_arena_stats_t *astats)
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{
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astats->pactive = 0;
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astats->pdirty = 0;
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if (config_stats) {
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memset(&astats->astats, 0, sizeof(arena_stats_t));
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astats->allocated_small = 0;
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astats->nmalloc_small = 0;
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astats->ndalloc_small = 0;
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astats->nrequests_small = 0;
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memset(astats->bstats, 0, NBINS * sizeof(malloc_bin_stats_t));
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memset(astats->lstats, 0, nlclasses *
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sizeof(malloc_large_stats_t));
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}
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}
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static void
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ctl_arena_stats_amerge(ctl_arena_stats_t *cstats, arena_t *arena)
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{
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unsigned i;
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arena_stats_merge(arena, &cstats->pactive, &cstats->pdirty,
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&cstats->astats, cstats->bstats, cstats->lstats);
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for (i = 0; i < NBINS; i++) {
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cstats->allocated_small += cstats->bstats[i].allocated;
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cstats->nmalloc_small += cstats->bstats[i].nmalloc;
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cstats->ndalloc_small += cstats->bstats[i].ndalloc;
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cstats->nrequests_small += cstats->bstats[i].nrequests;
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}
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}
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static void
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ctl_arena_stats_smerge(ctl_arena_stats_t *sstats, ctl_arena_stats_t *astats)
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{
|
|
unsigned i;
|
|
|
|
sstats->pactive += astats->pactive;
|
|
sstats->pdirty += astats->pdirty;
|
|
|
|
sstats->astats.mapped += astats->astats.mapped;
|
|
sstats->astats.npurge += astats->astats.npurge;
|
|
sstats->astats.nmadvise += astats->astats.nmadvise;
|
|
sstats->astats.purged += astats->astats.purged;
|
|
|
|
sstats->allocated_small += astats->allocated_small;
|
|
sstats->nmalloc_small += astats->nmalloc_small;
|
|
sstats->ndalloc_small += astats->ndalloc_small;
|
|
sstats->nrequests_small += astats->nrequests_small;
|
|
|
|
sstats->astats.allocated_large += astats->astats.allocated_large;
|
|
sstats->astats.nmalloc_large += astats->astats.nmalloc_large;
|
|
sstats->astats.ndalloc_large += astats->astats.ndalloc_large;
|
|
sstats->astats.nrequests_large += astats->astats.nrequests_large;
|
|
|
|
for (i = 0; i < nlclasses; i++) {
|
|
sstats->lstats[i].nmalloc += astats->lstats[i].nmalloc;
|
|
sstats->lstats[i].ndalloc += astats->lstats[i].ndalloc;
|
|
sstats->lstats[i].nrequests += astats->lstats[i].nrequests;
|
|
sstats->lstats[i].curruns += astats->lstats[i].curruns;
|
|
}
|
|
|
|
for (i = 0; i < NBINS; i++) {
|
|
sstats->bstats[i].allocated += astats->bstats[i].allocated;
|
|
sstats->bstats[i].nmalloc += astats->bstats[i].nmalloc;
|
|
sstats->bstats[i].ndalloc += astats->bstats[i].ndalloc;
|
|
sstats->bstats[i].nrequests += astats->bstats[i].nrequests;
|
|
if (config_tcache) {
|
|
sstats->bstats[i].nfills += astats->bstats[i].nfills;
|
|
sstats->bstats[i].nflushes +=
|
|
astats->bstats[i].nflushes;
|
|
}
|
|
sstats->bstats[i].nruns += astats->bstats[i].nruns;
|
|
sstats->bstats[i].reruns += astats->bstats[i].reruns;
|
|
sstats->bstats[i].curruns += astats->bstats[i].curruns;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ctl_arena_refresh(arena_t *arena, unsigned i)
|
|
{
|
|
ctl_arena_stats_t *astats = &ctl_stats.arenas[i];
|
|
ctl_arena_stats_t *sstats = &ctl_stats.arenas[narenas];
|
|
|
|
ctl_arena_clear(astats);
|
|
|
|
sstats->nthreads += astats->nthreads;
|
|
if (config_stats) {
|
|
ctl_arena_stats_amerge(astats, arena);
|
|
/* Merge into sum stats as well. */
|
|
ctl_arena_stats_smerge(sstats, astats);
|
|
} else {
|
|
astats->pactive += arena->nactive;
|
|
astats->pdirty += arena->ndirty;
|
|
/* Merge into sum stats as well. */
|
|
sstats->pactive += arena->nactive;
|
|
sstats->pdirty += arena->ndirty;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ctl_refresh(void)
|
|
{
|
|
unsigned i;
|
|
arena_t *tarenas[narenas];
|
|
|
|
if (config_stats) {
|
|
malloc_mutex_lock(&chunks_mtx);
|
|
ctl_stats.chunks.current = stats_chunks.curchunks;
|
|
ctl_stats.chunks.total = stats_chunks.nchunks;
|
|
ctl_stats.chunks.high = stats_chunks.highchunks;
|
|
malloc_mutex_unlock(&chunks_mtx);
|
|
|
|
malloc_mutex_lock(&huge_mtx);
|
|
ctl_stats.huge.allocated = huge_allocated;
|
|
ctl_stats.huge.nmalloc = huge_nmalloc;
|
|
ctl_stats.huge.ndalloc = huge_ndalloc;
|
|
malloc_mutex_unlock(&huge_mtx);
|
|
}
|
|
|
|
/*
|
|
* Clear sum stats, since they will be merged into by
|
|
* ctl_arena_refresh().
|
|
*/
|
|
ctl_stats.arenas[narenas].nthreads = 0;
|
|
ctl_arena_clear(&ctl_stats.arenas[narenas]);
|
|
|
|
malloc_mutex_lock(&arenas_lock);
|
|
memcpy(tarenas, arenas, sizeof(arena_t *) * narenas);
|
|
for (i = 0; i < narenas; i++) {
|
|
if (arenas[i] != NULL)
|
|
ctl_stats.arenas[i].nthreads = arenas[i]->nthreads;
|
|
else
|
|
ctl_stats.arenas[i].nthreads = 0;
|
|
}
|
|
malloc_mutex_unlock(&arenas_lock);
|
|
for (i = 0; i < narenas; i++) {
|
|
bool initialized = (tarenas[i] != NULL);
|
|
|
|
ctl_stats.arenas[i].initialized = initialized;
|
|
if (initialized)
|
|
ctl_arena_refresh(tarenas[i], i);
|
|
}
|
|
|
|
if (config_stats) {
|
|
ctl_stats.allocated = ctl_stats.arenas[narenas].allocated_small
|
|
+ ctl_stats.arenas[narenas].astats.allocated_large
|
|
+ ctl_stats.huge.allocated;
|
|
ctl_stats.active = (ctl_stats.arenas[narenas].pactive <<
|
|
LG_PAGE) + ctl_stats.huge.allocated;
|
|
ctl_stats.mapped = (ctl_stats.chunks.current << opt_lg_chunk);
|
|
}
|
|
|
|
ctl_epoch++;
|
|
}
|
|
|
|
static bool
|
|
ctl_init(void)
|
|
{
|
|
bool ret;
|
|
|
|
malloc_mutex_lock(&ctl_mtx);
|
|
if (ctl_initialized == false) {
|
|
/*
|
|
* Allocate space for one extra arena stats element, which
|
|
* contains summed stats across all arenas.
|
|
*/
|
|
ctl_stats.arenas = (ctl_arena_stats_t *)base_alloc(
|
|
(narenas + 1) * sizeof(ctl_arena_stats_t));
|
|
if (ctl_stats.arenas == NULL) {
|
|
ret = true;
|
|
goto label_return;
|
|
}
|
|
memset(ctl_stats.arenas, 0, (narenas + 1) *
|
|
sizeof(ctl_arena_stats_t));
|
|
|
|
/*
|
|
* Initialize all stats structures, regardless of whether they
|
|
* ever get used. Lazy initialization would allow errors to
|
|
* cause inconsistent state to be viewable by the application.
|
|
*/
|
|
if (config_stats) {
|
|
unsigned i;
|
|
for (i = 0; i <= narenas; i++) {
|
|
if (ctl_arena_init(&ctl_stats.arenas[i])) {
|
|
ret = true;
|
|
goto label_return;
|
|
}
|
|
}
|
|
}
|
|
ctl_stats.arenas[narenas].initialized = true;
|
|
|
|
ctl_epoch = 0;
|
|
ctl_refresh();
|
|
ctl_initialized = true;
|
|
}
|
|
|
|
ret = false;
|
|
label_return:
|
|
malloc_mutex_unlock(&ctl_mtx);
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
ctl_lookup(const char *name, ctl_node_t const **nodesp, size_t *mibp,
|
|
size_t *depthp)
|
|
{
|
|
int ret;
|
|
const char *elm, *tdot, *dot;
|
|
size_t elen, i, j;
|
|
const ctl_node_t *node;
|
|
|
|
elm = name;
|
|
/* Equivalent to strchrnul(). */
|
|
dot = ((tdot = strchr(elm, '.')) != NULL) ? tdot : strchr(elm, '\0');
|
|
elen = (size_t)((uintptr_t)dot - (uintptr_t)elm);
|
|
if (elen == 0) {
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
node = super_root_node;
|
|
for (i = 0; i < *depthp; i++) {
|
|
assert(node->named);
|
|
assert(node->u.named.nchildren > 0);
|
|
if (node->u.named.children[0].named) {
|
|
const ctl_node_t *pnode = node;
|
|
|
|
/* Children are named. */
|
|
for (j = 0; j < node->u.named.nchildren; j++) {
|
|
const ctl_node_t *child =
|
|
&node->u.named.children[j];
|
|
if (strlen(child->u.named.name) == elen
|
|
&& strncmp(elm, child->u.named.name,
|
|
elen) == 0) {
|
|
node = child;
|
|
if (nodesp != NULL)
|
|
nodesp[i] = node;
|
|
mibp[i] = j;
|
|
break;
|
|
}
|
|
}
|
|
if (node == pnode) {
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
} else {
|
|
uintmax_t index;
|
|
const ctl_node_t *inode;
|
|
|
|
/* Children are indexed. */
|
|
index = malloc_strtoumax(elm, NULL, 10);
|
|
if (index == UINTMAX_MAX || index > SIZE_T_MAX) {
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
|
|
inode = &node->u.named.children[0];
|
|
node = inode->u.indexed.index(mibp, *depthp,
|
|
(size_t)index);
|
|
if (node == NULL) {
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
|
|
if (nodesp != NULL)
|
|
nodesp[i] = node;
|
|
mibp[i] = (size_t)index;
|
|
}
|
|
|
|
if (node->ctl != NULL) {
|
|
/* Terminal node. */
|
|
if (*dot != '\0') {
|
|
/*
|
|
* The name contains more elements than are
|
|
* in this path through the tree.
|
|
*/
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
/* Complete lookup successful. */
|
|
*depthp = i + 1;
|
|
break;
|
|
}
|
|
|
|
/* Update elm. */
|
|
if (*dot == '\0') {
|
|
/* No more elements. */
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
elm = &dot[1];
|
|
dot = ((tdot = strchr(elm, '.')) != NULL) ? tdot :
|
|
strchr(elm, '\0');
|
|
elen = (size_t)((uintptr_t)dot - (uintptr_t)elm);
|
|
}
|
|
|
|
ret = 0;
|
|
label_return:
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
ctl_byname(const char *name, void *oldp, size_t *oldlenp, void *newp,
|
|
size_t newlen)
|
|
{
|
|
int ret;
|
|
size_t depth;
|
|
ctl_node_t const *nodes[CTL_MAX_DEPTH];
|
|
size_t mib[CTL_MAX_DEPTH];
|
|
|
|
if (ctl_initialized == false && ctl_init()) {
|
|
ret = EAGAIN;
|
|
goto label_return;
|
|
}
|
|
|
|
depth = CTL_MAX_DEPTH;
|
|
ret = ctl_lookup(name, nodes, mib, &depth);
|
|
if (ret != 0)
|
|
goto label_return;
|
|
|
|
if (nodes[depth-1]->ctl == NULL) {
|
|
/* The name refers to a partial path through the ctl tree. */
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
|
|
ret = nodes[depth-1]->ctl(mib, depth, oldp, oldlenp, newp, newlen);
|
|
label_return:
|
|
return(ret);
|
|
}
|
|
|
|
int
|
|
ctl_nametomib(const char *name, size_t *mibp, size_t *miblenp)
|
|
{
|
|
int ret;
|
|
|
|
if (ctl_initialized == false && ctl_init()) {
|
|
ret = EAGAIN;
|
|
goto label_return;
|
|
}
|
|
|
|
ret = ctl_lookup(name, NULL, mibp, miblenp);
|
|
label_return:
|
|
return(ret);
|
|
}
|
|
|
|
int
|
|
ctl_bymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
|
|
void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
const ctl_node_t *node;
|
|
size_t i;
|
|
|
|
if (ctl_initialized == false && ctl_init()) {
|
|
ret = EAGAIN;
|
|
goto label_return;
|
|
}
|
|
|
|
/* Iterate down the tree. */
|
|
node = super_root_node;
|
|
for (i = 0; i < miblen; i++) {
|
|
if (node->u.named.children[0].named) {
|
|
/* Children are named. */
|
|
if (node->u.named.nchildren <= mib[i]) {
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
node = &node->u.named.children[mib[i]];
|
|
} else {
|
|
const ctl_node_t *inode;
|
|
|
|
/* Indexed element. */
|
|
inode = &node->u.named.children[0];
|
|
node = inode->u.indexed.index(mib, miblen, mib[i]);
|
|
if (node == NULL) {
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Call the ctl function. */
|
|
if (node->ctl == NULL) {
|
|
/* Partial MIB. */
|
|
ret = ENOENT;
|
|
goto label_return;
|
|
}
|
|
ret = node->ctl(mib, miblen, oldp, oldlenp, newp, newlen);
|
|
|
|
label_return:
|
|
return(ret);
|
|
}
|
|
|
|
bool
|
|
ctl_boot(void)
|
|
{
|
|
|
|
if (malloc_mutex_init(&ctl_mtx))
|
|
return (true);
|
|
|
|
ctl_initialized = false;
|
|
|
|
return (false);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
/* *_ctl() functions. */
|
|
|
|
#define READONLY() do { \
|
|
if (newp != NULL || newlen != 0) { \
|
|
ret = EPERM; \
|
|
goto label_return; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define WRITEONLY() do { \
|
|
if (oldp != NULL || oldlenp != NULL) { \
|
|
ret = EPERM; \
|
|
goto label_return; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define VOID() do { \
|
|
READONLY(); \
|
|
WRITEONLY(); \
|
|
} while (0)
|
|
|
|
#define READ(v, t) do { \
|
|
if (oldp != NULL && oldlenp != NULL) { \
|
|
if (*oldlenp != sizeof(t)) { \
|
|
size_t copylen = (sizeof(t) <= *oldlenp) \
|
|
? sizeof(t) : *oldlenp; \
|
|
memcpy(oldp, (void *)&v, copylen); \
|
|
ret = EINVAL; \
|
|
goto label_return; \
|
|
} else \
|
|
*(t *)oldp = v; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define WRITE(v, t) do { \
|
|
if (newp != NULL) { \
|
|
if (newlen != sizeof(t)) { \
|
|
ret = EINVAL; \
|
|
goto label_return; \
|
|
} \
|
|
v = *(t *)newp; \
|
|
} \
|
|
} while (0)
|
|
|
|
/*
|
|
* There's a lot of code duplication in the following macros due to limitations
|
|
* in how nested cpp macros are expanded.
|
|
*/
|
|
#define CTL_RO_CLGEN(c, l, n, v, t) \
|
|
static int \
|
|
n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
|
|
void *newp, size_t newlen) \
|
|
{ \
|
|
int ret; \
|
|
t oldval; \
|
|
\
|
|
if ((c) == false) \
|
|
return (ENOENT); \
|
|
if (l) \
|
|
malloc_mutex_lock(&ctl_mtx); \
|
|
READONLY(); \
|
|
oldval = v; \
|
|
READ(oldval, t); \
|
|
\
|
|
ret = 0; \
|
|
label_return: \
|
|
if (l) \
|
|
malloc_mutex_unlock(&ctl_mtx); \
|
|
return (ret); \
|
|
}
|
|
|
|
#define CTL_RO_CGEN(c, n, v, t) \
|
|
static int \
|
|
n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
|
|
void *newp, size_t newlen) \
|
|
{ \
|
|
int ret; \
|
|
t oldval; \
|
|
\
|
|
if ((c) == false) \
|
|
return (ENOENT); \
|
|
malloc_mutex_lock(&ctl_mtx); \
|
|
READONLY(); \
|
|
oldval = v; \
|
|
READ(oldval, t); \
|
|
\
|
|
ret = 0; \
|
|
label_return: \
|
|
malloc_mutex_unlock(&ctl_mtx); \
|
|
return (ret); \
|
|
}
|
|
|
|
#define CTL_RO_GEN(n, v, t) \
|
|
static int \
|
|
n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
|
|
void *newp, size_t newlen) \
|
|
{ \
|
|
int ret; \
|
|
t oldval; \
|
|
\
|
|
malloc_mutex_lock(&ctl_mtx); \
|
|
READONLY(); \
|
|
oldval = v; \
|
|
READ(oldval, t); \
|
|
\
|
|
ret = 0; \
|
|
label_return: \
|
|
malloc_mutex_unlock(&ctl_mtx); \
|
|
return (ret); \
|
|
}
|
|
|
|
/*
|
|
* ctl_mtx is not acquired, under the assumption that no pertinent data will
|
|
* mutate during the call.
|
|
*/
|
|
#define CTL_RO_NL_CGEN(c, n, v, t) \
|
|
static int \
|
|
n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
|
|
void *newp, size_t newlen) \
|
|
{ \
|
|
int ret; \
|
|
t oldval; \
|
|
\
|
|
if ((c) == false) \
|
|
return (ENOENT); \
|
|
READONLY(); \
|
|
oldval = v; \
|
|
READ(oldval, t); \
|
|
\
|
|
ret = 0; \
|
|
label_return: \
|
|
return (ret); \
|
|
}
|
|
|
|
#define CTL_RO_NL_GEN(n, v, t) \
|
|
static int \
|
|
n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
|
|
void *newp, size_t newlen) \
|
|
{ \
|
|
int ret; \
|
|
t oldval; \
|
|
\
|
|
READONLY(); \
|
|
oldval = v; \
|
|
READ(oldval, t); \
|
|
\
|
|
ret = 0; \
|
|
label_return: \
|
|
return (ret); \
|
|
}
|
|
|
|
#define CTL_RO_BOOL_CONFIG_GEN(n) \
|
|
static int \
|
|
n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
|
|
void *newp, size_t newlen) \
|
|
{ \
|
|
int ret; \
|
|
bool oldval; \
|
|
\
|
|
READONLY(); \
|
|
oldval = n; \
|
|
READ(oldval, bool); \
|
|
\
|
|
ret = 0; \
|
|
label_return: \
|
|
return (ret); \
|
|
}
|
|
|
|
CTL_RO_NL_GEN(version, JEMALLOC_VERSION, const char *)
|
|
|
|
static int
|
|
epoch_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
|
|
void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
uint64_t newval;
|
|
|
|
malloc_mutex_lock(&ctl_mtx);
|
|
newval = 0;
|
|
WRITE(newval, uint64_t);
|
|
if (newval != 0)
|
|
ctl_refresh();
|
|
READ(ctl_epoch, uint64_t);
|
|
|
|
ret = 0;
|
|
label_return:
|
|
malloc_mutex_unlock(&ctl_mtx);
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
thread_tcache_enabled_ctl(const size_t *mib, size_t miblen, void *oldp,
|
|
size_t *oldlenp, void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
bool oldval;
|
|
|
|
if (config_tcache == false)
|
|
return (ENOENT);
|
|
|
|
oldval = tcache_enabled_get();
|
|
if (newp != NULL) {
|
|
if (newlen != sizeof(bool)) {
|
|
ret = EINVAL;
|
|
goto label_return;
|
|
}
|
|
tcache_enabled_set(*(bool *)newp);
|
|
}
|
|
READ(oldval, bool);
|
|
|
|
label_return:
|
|
ret = 0;
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
thread_tcache_flush_ctl(const size_t *mib, size_t miblen, void *oldp,
|
|
size_t *oldlenp, void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
|
|
if (config_tcache == false)
|
|
return (ENOENT);
|
|
|
|
VOID();
|
|
|
|
tcache_flush();
|
|
|
|
ret = 0;
|
|
label_return:
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
thread_arena_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
|
|
void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
unsigned newind, oldind;
|
|
|
|
newind = oldind = choose_arena(NULL)->ind;
|
|
WRITE(newind, unsigned);
|
|
READ(oldind, unsigned);
|
|
if (newind != oldind) {
|
|
arena_t *arena;
|
|
|
|
if (newind >= narenas) {
|
|
/* New arena index is out of range. */
|
|
ret = EFAULT;
|
|
goto label_return;
|
|
}
|
|
|
|
/* Initialize arena if necessary. */
|
|
malloc_mutex_lock(&arenas_lock);
|
|
if ((arena = arenas[newind]) == NULL && (arena =
|
|
arenas_extend(newind)) == NULL) {
|
|
malloc_mutex_unlock(&arenas_lock);
|
|
ret = EAGAIN;
|
|
goto label_return;
|
|
}
|
|
assert(arena == arenas[newind]);
|
|
arenas[oldind]->nthreads--;
|
|
arenas[newind]->nthreads++;
|
|
malloc_mutex_unlock(&arenas_lock);
|
|
|
|
/* Set new arena association. */
|
|
if (config_tcache) {
|
|
tcache_t *tcache;
|
|
if ((uintptr_t)(tcache = *tcache_tsd_get()) >
|
|
(uintptr_t)TCACHE_STATE_MAX) {
|
|
tcache_arena_dissociate(tcache);
|
|
tcache_arena_associate(tcache, arena);
|
|
}
|
|
}
|
|
arenas_tsd_set(&arena);
|
|
}
|
|
|
|
ret = 0;
|
|
label_return:
|
|
return (ret);
|
|
}
|
|
|
|
CTL_RO_NL_CGEN(config_stats, thread_allocated,
|
|
thread_allocated_tsd_get()->allocated, uint64_t)
|
|
CTL_RO_NL_CGEN(config_stats, thread_allocatedp,
|
|
&thread_allocated_tsd_get()->allocated, uint64_t *)
|
|
CTL_RO_NL_CGEN(config_stats, thread_deallocated,
|
|
thread_allocated_tsd_get()->deallocated, uint64_t)
|
|
CTL_RO_NL_CGEN(config_stats, thread_deallocatedp,
|
|
&thread_allocated_tsd_get()->deallocated, uint64_t *)
|
|
|
|
/******************************************************************************/
|
|
|
|
CTL_RO_BOOL_CONFIG_GEN(config_debug)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_dss)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_fill)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_lazy_lock)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_prof)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_prof_libgcc)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_prof_libunwind)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_stats)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_tcache)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_tls)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_utrace)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_valgrind)
|
|
CTL_RO_BOOL_CONFIG_GEN(config_xmalloc)
|
|
|
|
/******************************************************************************/
|
|
|
|
CTL_RO_NL_GEN(opt_abort, opt_abort, bool)
|
|
CTL_RO_NL_GEN(opt_lg_chunk, opt_lg_chunk, size_t)
|
|
CTL_RO_NL_GEN(opt_narenas, opt_narenas, size_t)
|
|
CTL_RO_NL_GEN(opt_lg_dirty_mult, opt_lg_dirty_mult, ssize_t)
|
|
CTL_RO_NL_GEN(opt_stats_print, opt_stats_print, bool)
|
|
CTL_RO_NL_CGEN(config_fill, opt_junk, opt_junk, bool)
|
|
CTL_RO_NL_CGEN(config_fill, opt_zero, opt_zero, bool)
|
|
CTL_RO_NL_CGEN(config_fill, opt_quarantine, opt_quarantine, size_t)
|
|
CTL_RO_NL_CGEN(config_fill, opt_redzone, opt_redzone, bool)
|
|
CTL_RO_NL_CGEN(config_utrace, opt_utrace, opt_utrace, bool)
|
|
CTL_RO_NL_CGEN(config_valgrind, opt_valgrind, opt_valgrind, bool)
|
|
CTL_RO_NL_CGEN(config_xmalloc, opt_xmalloc, opt_xmalloc, bool)
|
|
CTL_RO_NL_CGEN(config_tcache, opt_tcache, opt_tcache, bool)
|
|
CTL_RO_NL_CGEN(config_tcache, opt_lg_tcache_max, opt_lg_tcache_max, ssize_t)
|
|
CTL_RO_NL_CGEN(config_prof, opt_prof, opt_prof, bool)
|
|
CTL_RO_NL_CGEN(config_prof, opt_prof_prefix, opt_prof_prefix, const char *)
|
|
CTL_RO_CGEN(config_prof, opt_prof_active, opt_prof_active, bool) /* Mutable. */
|
|
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_sample, opt_lg_prof_sample, size_t)
|
|
CTL_RO_NL_CGEN(config_prof, opt_lg_prof_interval, opt_lg_prof_interval, ssize_t)
|
|
CTL_RO_NL_CGEN(config_prof, opt_prof_gdump, opt_prof_gdump, bool)
|
|
CTL_RO_NL_CGEN(config_prof, opt_prof_leak, opt_prof_leak, bool)
|
|
CTL_RO_NL_CGEN(config_prof, opt_prof_accum, opt_prof_accum, bool)
|
|
|
|
/******************************************************************************/
|
|
|
|
CTL_RO_NL_GEN(arenas_bin_i_size, arena_bin_info[mib[2]].reg_size, size_t)
|
|
CTL_RO_NL_GEN(arenas_bin_i_nregs, arena_bin_info[mib[2]].nregs, uint32_t)
|
|
CTL_RO_NL_GEN(arenas_bin_i_run_size, arena_bin_info[mib[2]].run_size, size_t)
|
|
const ctl_node_t *
|
|
arenas_bin_i_index(const size_t *mib, size_t miblen, size_t i)
|
|
{
|
|
|
|
if (i > NBINS)
|
|
return (NULL);
|
|
return (super_arenas_bin_i_node);
|
|
}
|
|
|
|
CTL_RO_NL_GEN(arenas_lrun_i_size, ((mib[2]+1) << LG_PAGE), size_t)
|
|
const ctl_node_t *
|
|
arenas_lrun_i_index(const size_t *mib, size_t miblen, size_t i)
|
|
{
|
|
|
|
if (i > nlclasses)
|
|
return (NULL);
|
|
return (super_arenas_lrun_i_node);
|
|
}
|
|
|
|
CTL_RO_NL_GEN(arenas_narenas, narenas, unsigned)
|
|
|
|
static int
|
|
arenas_initialized_ctl(const size_t *mib, size_t miblen, void *oldp,
|
|
size_t *oldlenp, void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
unsigned nread, i;
|
|
|
|
malloc_mutex_lock(&ctl_mtx);
|
|
READONLY();
|
|
if (*oldlenp != narenas * sizeof(bool)) {
|
|
ret = EINVAL;
|
|
nread = (*oldlenp < narenas * sizeof(bool))
|
|
? (*oldlenp / sizeof(bool)) : narenas;
|
|
} else {
|
|
ret = 0;
|
|
nread = narenas;
|
|
}
|
|
|
|
for (i = 0; i < nread; i++)
|
|
((bool *)oldp)[i] = ctl_stats.arenas[i].initialized;
|
|
|
|
label_return:
|
|
malloc_mutex_unlock(&ctl_mtx);
|
|
return (ret);
|
|
}
|
|
|
|
CTL_RO_NL_GEN(arenas_quantum, QUANTUM, size_t)
|
|
CTL_RO_NL_GEN(arenas_page, PAGE, size_t)
|
|
CTL_RO_NL_CGEN(config_tcache, arenas_tcache_max, tcache_maxclass, size_t)
|
|
CTL_RO_NL_GEN(arenas_nbins, NBINS, unsigned)
|
|
CTL_RO_NL_CGEN(config_tcache, arenas_nhbins, nhbins, unsigned)
|
|
CTL_RO_NL_GEN(arenas_nlruns, nlclasses, size_t)
|
|
|
|
static int
|
|
arenas_purge_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
|
|
void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
unsigned arena;
|
|
|
|
WRITEONLY();
|
|
arena = UINT_MAX;
|
|
WRITE(arena, unsigned);
|
|
if (newp != NULL && arena >= narenas) {
|
|
ret = EFAULT;
|
|
goto label_return;
|
|
} else {
|
|
arena_t *tarenas[narenas];
|
|
|
|
malloc_mutex_lock(&arenas_lock);
|
|
memcpy(tarenas, arenas, sizeof(arena_t *) * narenas);
|
|
malloc_mutex_unlock(&arenas_lock);
|
|
|
|
if (arena == UINT_MAX) {
|
|
unsigned i;
|
|
for (i = 0; i < narenas; i++) {
|
|
if (tarenas[i] != NULL)
|
|
arena_purge_all(tarenas[i]);
|
|
}
|
|
} else {
|
|
assert(arena < narenas);
|
|
if (tarenas[arena] != NULL)
|
|
arena_purge_all(tarenas[arena]);
|
|
}
|
|
}
|
|
|
|
ret = 0;
|
|
label_return:
|
|
return (ret);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
static int
|
|
prof_active_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
|
|
void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
bool oldval;
|
|
|
|
if (config_prof == false)
|
|
return (ENOENT);
|
|
|
|
malloc_mutex_lock(&ctl_mtx); /* Protect opt_prof_active. */
|
|
oldval = opt_prof_active;
|
|
if (newp != NULL) {
|
|
/*
|
|
* The memory barriers will tend to make opt_prof_active
|
|
* propagate faster on systems with weak memory ordering.
|
|
*/
|
|
mb_write();
|
|
WRITE(opt_prof_active, bool);
|
|
mb_write();
|
|
}
|
|
READ(oldval, bool);
|
|
|
|
ret = 0;
|
|
label_return:
|
|
malloc_mutex_unlock(&ctl_mtx);
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
prof_dump_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
|
|
void *newp, size_t newlen)
|
|
{
|
|
int ret;
|
|
const char *filename = NULL;
|
|
|
|
if (config_prof == false)
|
|
return (ENOENT);
|
|
|
|
WRITEONLY();
|
|
WRITE(filename, const char *);
|
|
|
|
if (prof_mdump(filename)) {
|
|
ret = EFAULT;
|
|
goto label_return;
|
|
}
|
|
|
|
ret = 0;
|
|
label_return:
|
|
return (ret);
|
|
}
|
|
|
|
CTL_RO_NL_CGEN(config_prof, prof_interval, prof_interval, uint64_t)
|
|
|
|
/******************************************************************************/
|
|
|
|
CTL_RO_CGEN(config_stats, stats_chunks_current, ctl_stats.chunks.current,
|
|
size_t)
|
|
CTL_RO_CGEN(config_stats, stats_chunks_total, ctl_stats.chunks.total, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_chunks_high, ctl_stats.chunks.high, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_huge_allocated, huge_allocated, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_huge_nmalloc, huge_nmalloc, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_huge_ndalloc, huge_ndalloc, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_small_allocated,
|
|
ctl_stats.arenas[mib[2]].allocated_small, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_small_nmalloc,
|
|
ctl_stats.arenas[mib[2]].nmalloc_small, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_small_ndalloc,
|
|
ctl_stats.arenas[mib[2]].ndalloc_small, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_small_nrequests,
|
|
ctl_stats.arenas[mib[2]].nrequests_small, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_large_allocated,
|
|
ctl_stats.arenas[mib[2]].astats.allocated_large, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_large_nmalloc,
|
|
ctl_stats.arenas[mib[2]].astats.nmalloc_large, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_large_ndalloc,
|
|
ctl_stats.arenas[mib[2]].astats.ndalloc_large, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_large_nrequests,
|
|
ctl_stats.arenas[mib[2]].astats.nrequests_large, uint64_t)
|
|
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_allocated,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].allocated, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nmalloc,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].nmalloc, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_ndalloc,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].ndalloc, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nrequests,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].nrequests, uint64_t)
|
|
CTL_RO_CGEN(config_stats && config_tcache, stats_arenas_i_bins_j_nfills,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].nfills, uint64_t)
|
|
CTL_RO_CGEN(config_stats && config_tcache, stats_arenas_i_bins_j_nflushes,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].nflushes, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nruns,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].nruns, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nreruns,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].reruns, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_curruns,
|
|
ctl_stats.arenas[mib[2]].bstats[mib[4]].curruns, size_t)
|
|
|
|
const ctl_node_t *
|
|
stats_arenas_i_bins_j_index(const size_t *mib, size_t miblen, size_t j)
|
|
{
|
|
|
|
if (j > NBINS)
|
|
return (NULL);
|
|
return (super_stats_arenas_i_bins_j_node);
|
|
}
|
|
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_nmalloc,
|
|
ctl_stats.arenas[mib[2]].lstats[mib[4]].nmalloc, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_ndalloc,
|
|
ctl_stats.arenas[mib[2]].lstats[mib[4]].ndalloc, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_nrequests,
|
|
ctl_stats.arenas[mib[2]].lstats[mib[4]].nrequests, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_curruns,
|
|
ctl_stats.arenas[mib[2]].lstats[mib[4]].curruns, size_t)
|
|
|
|
const ctl_node_t *
|
|
stats_arenas_i_lruns_j_index(const size_t *mib, size_t miblen, size_t j)
|
|
{
|
|
|
|
if (j > nlclasses)
|
|
return (NULL);
|
|
return (super_stats_arenas_i_lruns_j_node);
|
|
}
|
|
|
|
CTL_RO_GEN(stats_arenas_i_nthreads, ctl_stats.arenas[mib[2]].nthreads, unsigned)
|
|
CTL_RO_GEN(stats_arenas_i_pactive, ctl_stats.arenas[mib[2]].pactive, size_t)
|
|
CTL_RO_GEN(stats_arenas_i_pdirty, ctl_stats.arenas[mib[2]].pdirty, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_mapped,
|
|
ctl_stats.arenas[mib[2]].astats.mapped, size_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_npurge,
|
|
ctl_stats.arenas[mib[2]].astats.npurge, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_nmadvise,
|
|
ctl_stats.arenas[mib[2]].astats.nmadvise, uint64_t)
|
|
CTL_RO_CGEN(config_stats, stats_arenas_i_purged,
|
|
ctl_stats.arenas[mib[2]].astats.purged, uint64_t)
|
|
|
|
const ctl_node_t *
|
|
stats_arenas_i_index(const size_t *mib, size_t miblen, size_t i)
|
|
{
|
|
const ctl_node_t * ret;
|
|
|
|
malloc_mutex_lock(&ctl_mtx);
|
|
if (ctl_stats.arenas[i].initialized == false) {
|
|
ret = NULL;
|
|
goto label_return;
|
|
}
|
|
|
|
ret = super_stats_arenas_i_node;
|
|
label_return:
|
|
malloc_mutex_unlock(&ctl_mtx);
|
|
return (ret);
|
|
}
|
|
|
|
CTL_RO_CGEN(config_stats, stats_cactive, &stats_cactive, size_t *)
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CTL_RO_CGEN(config_stats, stats_allocated, ctl_stats.allocated, size_t)
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CTL_RO_CGEN(config_stats, stats_active, ctl_stats.active, size_t)
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CTL_RO_CGEN(config_stats, stats_mapped, ctl_stats.mapped, size_t)
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