project-base/server-skynet-source-3rd-jemalloc
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Remove magic.

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Remove structure magic, because 1) it is no longer conditional, and 2)
it stopped being very effective at detecting memory corruption several
years ago.
This commit is contained in:
Jason Evans
2012-02-13 10:24:43 -08:00
parent 7372b15a31
commit fd56043c53
7 changed files with 0 additions and 45 deletions
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11
include/jemalloc/internal/arena.h
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@@ -211,9 +211,6 @@ struct arena_chunk_s {
typedef rb_tree(arena_chunk_t) arena_chunk_tree_t;
struct arena_run_s {
uint32_t magic;
# define ARENA_RUN_MAGIC 0x384adf93
/* Bin this run is associated with. */
arena_bin_t *bin;
@@ -290,9 +287,6 @@ struct arena_bin_s {
};
struct arena_s {
uint32_t magic;
# define ARENA_MAGIC 0x947d3d24
/* This arena's index within the arenas array. */
unsigned ind;
@@ -499,7 +493,6 @@ arena_run_regind(arena_run_t *run, arena_bin_info_t *bin_info, const void *ptr)
unsigned shift, diff, regind;
size_t size;
assert(run->magic == ARENA_RUN_MAGIC);
/*
* Freeing a pointer lower than region zero can cause assertion
* failure.
@@ -590,7 +583,6 @@ arena_prof_ctx_get(const void *ptr)
arena_bin_info_t *bin_info = &arena_bin_info[binind];
unsigned regind;
assert(run->magic == ARENA_RUN_MAGIC);
regind = arena_run_regind(run, bin_info, ptr);
ret = *(prof_ctx_t **)((uintptr_t)run +
bin_info->ctx0_offset + (regind *
@@ -626,7 +618,6 @@ arena_prof_ctx_set(const void *ptr, prof_ctx_t *ctx)
arena_bin_info_t *bin_info;
unsigned regind;
assert(run->magic == ARENA_RUN_MAGIC);
binind = arena_bin_index(chunk->arena, bin);
bin_info = &arena_bin_info[binind];
regind = arena_run_regind(run, bin_info, ptr);
@@ -646,7 +637,6 @@ arena_dalloc(arena_t *arena, arena_chunk_t *chunk, void *ptr)
arena_chunk_map_t *mapelm;
assert(arena != NULL);
assert(arena->magic == ARENA_MAGIC);
assert(chunk->arena == arena);
assert(ptr != NULL);
assert(CHUNK_ADDR2BASE(ptr) != ptr);
@@ -667,7 +657,6 @@ arena_dalloc(arena_t *arena, arena_chunk_t *chunk, void *ptr)
run = (arena_run_t *)((uintptr_t)chunk +
(uintptr_t)((pageind - (mapelm->bits >>
PAGE_SHIFT)) << PAGE_SHIFT));
assert(run->magic == ARENA_RUN_MAGIC);
bin = run->bin;
if (config_debug) {
size_t binind = arena_bin_index(arena, bin);

3
include/jemalloc/internal/ckh.h
View File

@@ -30,9 +30,6 @@ struct ckhc_s {
};
struct ckh_s {
#define CKH_MAGIC 0x3af2489d
uint32_t magic;
#ifdef CKH_COUNT
/* Counters used to get an idea of performance. */
uint64_t ngrows;

2
include/jemalloc/internal/jemalloc_internal.h.in
View File

@@ -774,8 +774,6 @@ isalloc(const void *ptr)
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (chunk != ptr) {
/* Region. */
assert(chunk->arena->magic == ARENA_MAGIC);
if (config_prof)
ret = arena_salloc_demote(ptr);
else

4
include/jemalloc/internal/prof.h
View File

@@ -336,8 +336,6 @@ prof_ctx_get(const void *ptr)
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (chunk != ptr) {
/* Region. */
assert(chunk->arena->magic == ARENA_MAGIC);
ret = arena_prof_ctx_get(ptr);
} else
ret = huge_prof_ctx_get(ptr);
@@ -356,8 +354,6 @@ prof_ctx_set(const void *ptr, prof_ctx_t *ctx)
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (chunk != ptr) {
/* Region. */
assert(chunk->arena->magic == ARENA_MAGIC);
arena_prof_ctx_set(ptr, ctx);
} else
huge_prof_ctx_set(ptr, ctx);

1
include/jemalloc/internal/tcache.h
View File

@@ -333,7 +333,6 @@ tcache_dalloc_small(tcache_t *tcache, void *ptr)
mapelm = &chunk->map[pageind-map_bias];
run = (arena_run_t *)((uintptr_t)chunk + (uintptr_t)((pageind -
(mapelm->bits >> PAGE_SHIFT)) << PAGE_SHIFT));
assert(run->magic == ARENA_RUN_MAGIC);
bin = run->bin;
binind = ((uintptr_t)bin - (uintptr_t)&arena->bins) /
sizeof(arena_bin_t);