36366f3c4c
Add new runtime option `debug_double_free_max_scan` that specifies the max number of stack entries to scan in the cache bit when trying to detect the double free bug (currently debug build only).
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
#ifndef JEMALLOC_INTERNAL_EXTERNS_H
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#define JEMALLOC_INTERNAL_EXTERNS_H
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/hpa_opts.h"
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#include "jemalloc/internal/sec_opts.h"
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#include "jemalloc/internal/tsd_types.h"
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#include "jemalloc/internal/nstime.h"
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/* TSD checks this to set thread local slow state accordingly. */
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extern bool malloc_slow;
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/* Run-time options. */
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extern bool opt_abort;
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extern bool opt_abort_conf;
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extern bool opt_trust_madvise;
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extern bool opt_confirm_conf;
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extern bool opt_hpa;
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extern hpa_shard_opts_t opt_hpa_opts;
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extern sec_opts_t opt_hpa_sec_opts;
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extern const char *opt_junk;
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extern bool opt_junk_alloc;
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extern bool opt_junk_free;
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extern void (*junk_free_callback)(void *ptr, size_t size);
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extern void (*junk_alloc_callback)(void *ptr, size_t size);
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extern bool opt_utrace;
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extern bool opt_xmalloc;
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extern bool opt_experimental_infallible_new;
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extern bool opt_zero;
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extern unsigned opt_narenas;
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extern zero_realloc_action_t opt_zero_realloc_action;
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extern malloc_init_t malloc_init_state;
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extern const char *zero_realloc_mode_names[];
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extern atomic_zu_t zero_realloc_count;
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extern bool opt_cache_oblivious;
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extern unsigned opt_debug_double_free_max_scan;
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/* Escape free-fastpath when ptr & mask == 0 (for sanitization purpose). */
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extern uintptr_t san_cache_bin_nonfast_mask;
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/* Number of CPUs. */
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extern unsigned ncpus;
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/* Number of arenas used for automatic multiplexing of threads and arenas. */
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extern unsigned narenas_auto;
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/* Base index for manual arenas. */
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extern unsigned manual_arena_base;
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/*
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* Arenas that are used to service external requests. Not all elements of the
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* arenas array are necessarily used; arenas are created lazily as needed.
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*/
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extern atomic_p_t arenas[];
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void *a0malloc(size_t size);
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void a0dalloc(void *ptr);
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void *bootstrap_malloc(size_t size);
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void *bootstrap_calloc(size_t num, size_t size);
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void bootstrap_free(void *ptr);
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void arena_set(unsigned ind, arena_t *arena);
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unsigned narenas_total_get(void);
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arena_t *arena_init(tsdn_t *tsdn, unsigned ind, const arena_config_t *config);
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arena_t *arena_choose_hard(tsd_t *tsd, bool internal);
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void arena_migrate(tsd_t *tsd, arena_t *oldarena, arena_t *newarena);
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void iarena_cleanup(tsd_t *tsd);
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void arena_cleanup(tsd_t *tsd);
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size_t batch_alloc(void **ptrs, size_t num, size_t size, int flags);
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void jemalloc_prefork(void);
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void jemalloc_postfork_parent(void);
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void jemalloc_postfork_child(void);
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void je_sdallocx_noflags(void *ptr, size_t size);
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void *malloc_default(size_t size);
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#endif /* JEMALLOC_INTERNAL_EXTERNS_H */
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