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📄 arena_externs.h(4.83 KB)
📄 arena_inlines_a.h(1.44 KB)
📄 arena_inlines_b.h(11.54 KB)
📄 arena_stats.h(7.92 KB)
📄 arena_structs_a.h(293 B)
📄 arena_structs_b.h(6.63 KB)
📄 arena_types.h(1.67 KB)
📄 assert.h(1.3 KB)
📄 atomic.h(2.66 KB)
📄 atomic_c11.h(3.46 KB)
📄 atomic_gcc_atomic.h(4.06 KB)
📄 atomic_gcc_sync.h(6.21 KB)
📄 background_thread_externs.h(1.29 KB)
📄 background_thread_inlines.h(2.09 KB)
📄 background_thread_structs.h(1.74 KB)
📄 base_externs.h(946 B)
📄 base_inlines.h(312 B)
📄 base_structs.h(1.52 KB)
📄 base_types.h(1.08 KB)
📄 bin.h(3.6 KB)
📄 bin_stats.h(1.35 KB)
📄 bin_types.h(474 B)
📄 bit_util.h(5.22 KB)
📄 bitmap.h(10.97 KB)
📄 cache_bin.h(3.69 KB)
📄 ckh.h(3.19 KB)
📄 ctl.h(3.62 KB)
📄 div.h(1.14 KB)
📄 emitter.h(13.06 KB)
📄 extent_dss.h(728 B)
📄 extent_externs.h(3.75 KB)
📄 extent_inlines.h(13.4 KB)
📄 extent_mmap.h(328 B)
📄 extent_structs.h(8.46 KB)
📄 extent_types.h(700 B)
📄 hash.h(7.88 KB)
📄 hook.h(5.41 KB)
📄 jemalloc_internal_decls.h(2.19 KB)
📄 jemalloc_internal_defs.h(10.93 KB)
📄 jemalloc_internal_defs_FreeBSD.h(256 B)
📄 jemalloc_internal_externs.h(1.75 KB)
📄 jemalloc_internal_includes.h(4.19 KB)
📄 jemalloc_internal_inlines_a.h(4.39 KB)
📄 jemalloc_internal_inlines_b.h(2.24 KB)
📄 jemalloc_internal_inlines_c.h(7.08 KB)
📄 jemalloc_internal_macros.h(3.99 KB)
📄 jemalloc_internal_types.h(3.42 KB)
📄 jemalloc_preamble.h(3.9 KB)
📄 large_externs.h(1.4 KB)
📄 log.h(3.67 KB)
📄 malloc_io.h(2.9 KB)
📄 mutex.h(9.34 KB)
📄 mutex_pool.h(2.81 KB)
📄 mutex_prof.h(3.55 KB)
📄 nstime.h(1.27 KB)
📄 pages.h(3.05 KB)
📄 ph.h(12.26 KB)
📄 private_namespace.h(22.72 KB)
📄 prng.h(4.69 KB)
📄 prof_externs.h(3.79 KB)
📄 prof_inlines_a.h(2.44 KB)
📄 prof_inlines_b.h(6.42 KB)
📄 prof_structs.h(5.02 KB)
📄 prof_types.h(1.74 KB)
📄 public_namespace.h(1.03 KB)
📄 ql.h(2.45 KB)
📄 qr.h(2.29 KB)
📄 quantum.h(1.75 KB)
📄 rb.h(37.41 KB)
📄 rtree.h(17.01 KB)
📄 rtree_tsd.h(1.82 KB)
📄 safety_check.h(797 B)
📄 sc.h(12.98 KB)
📄 seq.h(1.81 KB)
📄 smoothstep.h(15.26 KB)
📄 spin.h(613 B)
📄 stats.h(998 B)
📄 sz.h(7.96 KB)
📄 tcache_externs.h(2.09 KB)
📄 tcache_inlines.h(5.73 KB)
📄 tcache_structs.h(2.05 KB)
📄 tcache_types.h(2.01 KB)
📄 test_hooks.h(459 B)
📄 ticker.h(2.21 KB)
📄 tsd.h(12.49 KB)
📄 tsd_generic.h(3.76 KB)
📄 tsd_malloc_thread_cleanup.h(1.19 KB)
📄 tsd_tls.h(1.12 KB)
📄 tsd_types.h(258 B)
📄 util.h(1.43 KB)
📄 witness.h(9.32 KB)

Editing: prof_inlines_b.h

#ifndef JEMALLOC_INTERNAL_PROF_INLINES_B_H
#define JEMALLOC_INTERNAL_PROF_INLINES_B_H

#include "jemalloc/internal/safety_check.h"
#include "jemalloc/internal/sz.h"

JEMALLOC_ALWAYS_INLINE bool
prof_gdump_get_unlocked(void) {
	/*
	 * No locking is used when reading prof_gdump_val in the fast path, so
	 * there are no guarantees regarding how long it will take for all
	 * threads to notice state changes.
	 */
	return prof_gdump_val;
}

JEMALLOC_ALWAYS_INLINE prof_tdata_t *
prof_tdata_get(tsd_t *tsd, bool create) {
	prof_tdata_t *tdata;

cassert(config_prof);

tdata = tsd_prof_tdata_get(tsd);
	if (create) {
		if (unlikely(tdata == NULL)) {
			if (tsd_nominal(tsd)) {
				tdata = prof_tdata_init(tsd);
				tsd_prof_tdata_set(tsd, tdata);
			}
		} else if (unlikely(tdata->expired)) {
			tdata = prof_tdata_reinit(tsd, tdata);
			tsd_prof_tdata_set(tsd, tdata);
		}
		assert(tdata == NULL || tdata->attached);
	}

return tdata;
}

JEMALLOC_ALWAYS_INLINE prof_tctx_t *
prof_tctx_get(tsdn_t *tsdn, const void *ptr, alloc_ctx_t *alloc_ctx) {
	cassert(config_prof);
	assert(ptr != NULL);

return arena_prof_tctx_get(tsdn, ptr, alloc_ctx);
}

JEMALLOC_ALWAYS_INLINE void
prof_tctx_set(tsdn_t *tsdn, const void *ptr, size_t usize,
    alloc_ctx_t *alloc_ctx, prof_tctx_t *tctx) {
	cassert(config_prof);
	assert(ptr != NULL);

arena_prof_tctx_set(tsdn, ptr, usize, alloc_ctx, tctx);
}

JEMALLOC_ALWAYS_INLINE void
prof_tctx_reset(tsdn_t *tsdn, const void *ptr, prof_tctx_t *tctx) {
	cassert(config_prof);
	assert(ptr != NULL);

arena_prof_tctx_reset(tsdn, ptr, tctx);
}

JEMALLOC_ALWAYS_INLINE nstime_t
prof_alloc_time_get(tsdn_t *tsdn, const void *ptr, alloc_ctx_t *alloc_ctx) {
	cassert(config_prof);
	assert(ptr != NULL);

return arena_prof_alloc_time_get(tsdn, ptr, alloc_ctx);
}

JEMALLOC_ALWAYS_INLINE void
prof_alloc_time_set(tsdn_t *tsdn, const void *ptr, alloc_ctx_t *alloc_ctx,
    nstime_t t) {
	cassert(config_prof);
	assert(ptr != NULL);

arena_prof_alloc_time_set(tsdn, ptr, alloc_ctx, t);
}

JEMALLOC_ALWAYS_INLINE bool
prof_sample_check(tsd_t *tsd, size_t usize, bool update) {
	ssize_t check = update ? 0 : usize;

int64_t bytes_until_sample = tsd_bytes_until_sample_get(tsd);
	if (update) {
		bytes_until_sample -= usize;
		if (tsd_nominal(tsd)) {
			tsd_bytes_until_sample_set(tsd, bytes_until_sample);
		}
	}
	if (likely(bytes_until_sample >= check)) {
		return true;
	}

return false;
}

JEMALLOC_ALWAYS_INLINE bool
prof_sample_accum_update(tsd_t *tsd, size_t usize, bool update,
			 prof_tdata_t **tdata_out) {
	prof_tdata_t *tdata;

cassert(config_prof);

/* Fastpath: no need to load tdata */
	if (likely(prof_sample_check(tsd, usize, update))) {
		return true;
	}

bool booted = tsd_prof_tdata_get(tsd);
	tdata = prof_tdata_get(tsd, true);
	if (unlikely((uintptr_t)tdata <= (uintptr_t)PROF_TDATA_STATE_MAX)) {
		tdata = NULL;
	}

if (tdata_out != NULL) {
		*tdata_out = tdata;
	}

if (unlikely(tdata == NULL)) {
		return true;
	}

/*
	 * If this was the first creation of tdata, then
	 * prof_tdata_get() reset bytes_until_sample, so decrement and
	 * check it again
	 */
	if (!booted && prof_sample_check(tsd, usize, update)) {
		return true;
	}

if (tsd_reentrancy_level_get(tsd) > 0) {
		return true;
	}
	/* Compute new sample threshold. */
	if (update) {
		prof_sample_threshold_update(tdata);
	}
	return !tdata->active;
}

JEMALLOC_ALWAYS_INLINE prof_tctx_t *
prof_alloc_prep(tsd_t *tsd, size_t usize, bool prof_active, bool update) {
	prof_tctx_t *ret;
	prof_tdata_t *tdata;
	prof_bt_t bt;

assert(usize == sz_s2u(usize));

if (!prof_active || likely(prof_sample_accum_update(tsd, usize, update,
	    &tdata))) {
		ret = (prof_tctx_t *)(uintptr_t)1U;
	} else {
		bt_init(&bt, tdata->vec);
		prof_backtrace(&bt);
		ret = prof_lookup(tsd, &bt);
	}

return ret;
}

JEMALLOC_ALWAYS_INLINE void
prof_malloc(tsdn_t *tsdn, const void *ptr, size_t usize, alloc_ctx_t *alloc_ctx,
    prof_tctx_t *tctx) {
	cassert(config_prof);
	assert(ptr != NULL);
	assert(usize == isalloc(tsdn, ptr));

if (unlikely((uintptr_t)tctx > (uintptr_t)1U)) {
		prof_malloc_sample_object(tsdn, ptr, usize, tctx);
	} else {
		prof_tctx_set(tsdn, ptr, usize, alloc_ctx,
		    (prof_tctx_t *)(uintptr_t)1U);
	}
}

JEMALLOC_ALWAYS_INLINE void
prof_realloc(tsd_t *tsd, const void *ptr, size_t usize, prof_tctx_t *tctx,
    bool prof_active, bool updated, const void *old_ptr, size_t old_usize,
    prof_tctx_t *old_tctx) {
	bool sampled, old_sampled, moved;

cassert(config_prof);
	assert(ptr != NULL || (uintptr_t)tctx <= (uintptr_t)1U);

if (prof_active && !updated && ptr != NULL) {
		assert(usize == isalloc(tsd_tsdn(tsd), ptr));
		if (prof_sample_accum_update(tsd, usize, true, NULL)) {
			/*
			 * Don't sample.  The usize passed to prof_alloc_prep()
			 * was larger than what actually got allocated, so a
			 * backtrace was captured for this allocation, even
			 * though its actual usize was insufficient to cross the
			 * sample threshold.
			 */
			prof_alloc_rollback(tsd, tctx, true);
			tctx = (prof_tctx_t *)(uintptr_t)1U;
		}
	}

sampled = ((uintptr_t)tctx > (uintptr_t)1U);
	old_sampled = ((uintptr_t)old_tctx > (uintptr_t)1U);
	moved = (ptr != old_ptr);

if (unlikely(sampled)) {
		prof_malloc_sample_object(tsd_tsdn(tsd), ptr, usize, tctx);
	} else if (moved) {
		prof_tctx_set(tsd_tsdn(tsd), ptr, usize, NULL,
		    (prof_tctx_t *)(uintptr_t)1U);
	} else if (unlikely(old_sampled)) {
		/*
		 * prof_tctx_set() would work for the !moved case as well, but
		 * prof_tctx_reset() is slightly cheaper, and the proper thing
		 * to do here in the presence of explicit knowledge re: moved
		 * state.
		 */
		prof_tctx_reset(tsd_tsdn(tsd), ptr, tctx);
	} else {
		assert((uintptr_t)prof_tctx_get(tsd_tsdn(tsd), ptr, NULL) ==
		    (uintptr_t)1U);
	}

/*
	 * The prof_free_sampled_object() call must come after the
	 * prof_malloc_sample_object() call, because tctx and old_tctx may be
	 * the same, in which case reversing the call order could cause the tctx
	 * to be prematurely destroyed as a side effect of momentarily zeroed
	 * counters.
	 */
	if (unlikely(old_sampled)) {
		prof_free_sampled_object(tsd, ptr, old_usize, old_tctx);
	}
}

JEMALLOC_ALWAYS_INLINE void
prof_free(tsd_t *tsd, const void *ptr, size_t usize, alloc_ctx_t *alloc_ctx) {
	prof_tctx_t *tctx = prof_tctx_get(tsd_tsdn(tsd), ptr, alloc_ctx);

cassert(config_prof);
	assert(usize == isalloc(tsd_tsdn(tsd), ptr));

if (unlikely((uintptr_t)tctx > (uintptr_t)1U)) {
		prof_free_sampled_object(tsd, ptr, usize, tctx);
	}
}

#endif /* JEMALLOC_INTERNAL_PROF_INLINES_B_H */

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