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-rw-r--r--mono/mini/aot-runtime.c308
1 files changed, 210 insertions, 98 deletions
diff --git a/mono/mini/aot-runtime.c b/mono/mini/aot-runtime.c
index 7bf4aa828e..32bbeb79b4 100644
--- a/mono/mini/aot-runtime.c
+++ b/mono/mini/aot-runtime.c
@@ -70,9 +70,15 @@
#define SHARED_EXT ".so"
#endif
+#define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
#define ALIGN_PTR_TO(ptr,align) (gpointer)((((gssize)(ptr)) + (align - 1)) & (~(align - 1)))
#define ROUND_DOWN(VALUE,SIZE) ((VALUE) & ~((SIZE) - 1))
+typedef struct {
+ int method_index;
+ MonoJitInfo *jinfo;
+} JitInfoMap;
+
typedef struct MonoAotModule {
char *aot_name;
/* Pointer to the Global Offset Table */
@@ -98,9 +104,7 @@ typedef struct MonoAotModule {
guint8 *plt_end;
guint8 *blob;
gint32 *code_offsets;
-#ifdef MONOTOUCH
gpointer *method_addresses;
-#endif
/* This contains <offset, index> pairs sorted by offset */
/* This is needed because LLVM emitted methods can be in any order */
gint32 *sorted_code_offsets;
@@ -132,6 +136,8 @@ typedef struct MonoAotModule {
gpointer *globals;
MonoDl *sofile;
+
+ JitInfoMap *async_jit_info_table;
} MonoAotModule;
typedef struct {
@@ -180,6 +186,9 @@ static guint32 n_pagefaults = 0;
static gsize aot_code_low_addr = (gssize)-1;
static gsize aot_code_high_addr = 0;
+/* Stats */
+static gint32 async_jit_info_size;
+
static GHashTable *aot_jit_icall_hash;
#ifdef MONOTOUCH
@@ -1588,7 +1597,7 @@ load_aot_module (MonoAssembly *assembly, gpointer user_data)
sofile = mono_dl_open (aot_name, MONO_DL_LAZY, &err);
if (!sofile) {
- mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT failed to load AOT module %s: %s\n", aot_name, err);
+ mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_AOT, "AOT module '%s' not found: %s\n", aot_name, err);
g_free (err);
}
}
@@ -1719,9 +1728,7 @@ load_aot_module (MonoAssembly *assembly, gpointer user_data)
}
amodule->code_offsets = info->code_offsets;
-#ifdef MONOTOUCH
amodule->method_addresses = info->method_addresses;
-#endif
amodule->code = info->methods;
#ifdef TARGET_ARM
/* Mask out thumb interop bit */
@@ -1755,7 +1762,7 @@ load_aot_module (MonoAssembly *assembly, gpointer user_data)
amodule->code_offsets = g_malloc0 (amodule->info.nmethods * sizeof (gint32));
for (i = 0; i < amodule->info.nmethods; ++i) {
/* method_addresses () contains a table of branches, since the ios linker can update those correctly */
- void *addr = get_arm_bl_target ((guint32*)(amodule->method_addresses + i));
+ void *addr = get_arm_bl_target ((guint32*)amodule->method_addresses + i);
if (addr == amodule->method_addresses)
amodule->code_offsets [i] = 0xffffffff;
@@ -1909,6 +1916,7 @@ mono_aot_init (void)
#ifndef __native_client__
mono_install_assembly_load_hook (load_aot_module, NULL);
#endif
+ mono_counters_register ("Async JIT info size", MONO_COUNTER_INT|MONO_COUNTER_JIT, &async_jit_info_size);
if (g_getenv ("MONO_LASTAOT"))
mono_last_aot_method = atoi (g_getenv ("MONO_LASTAOT"));
@@ -2257,11 +2265,11 @@ decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
* allocate a new JI.
*/
jinfo =
- mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO + (sizeof (MonoJitExceptionInfo) * (ei_len + nested_len)) + extra_size);
+ mono_domain_alloc0_lock_free (domain, MONO_SIZEOF_JIT_INFO + (sizeof (MonoJitExceptionInfo) * (ei_len + nested_len)) + extra_size);
jinfo->code_size = code_len;
jinfo->used_regs = mono_cache_unwind_info (info.unw_info, info.unw_info_len);
- jinfo->method = method;
+ jinfo->d.method = method;
jinfo->code_start = code;
jinfo->domain_neutral = 0;
/* This signals that used_regs points to a normal cached unwind info */
@@ -2321,15 +2329,30 @@ decode_llvm_mono_eh_frame (MonoAotModule *amodule, MonoDomain *domain,
return jinfo;
}
+static gpointer
+alloc0_jit_info_data (MonoDomain *domain, int size, gboolean async_context)
+{
+ gpointer res;
+
+ if (async_context) {
+ res = mono_domain_alloc0_lock_free (domain, size);
+ InterlockedExchangeAdd (&async_jit_info_size, size);
+ } else {
+ res = mono_domain_alloc0 (domain, size);
+ }
+ return res;
+}
+
/*
* LOCKING: Acquires the domain lock.
+ * In async context, this is async safe.
*/
static MonoJitInfo*
decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
MonoMethod *method, guint8* ex_info, guint8 *addr,
guint8 *code, guint32 code_len)
{
- int i, buf_len, num_clauses;
+ int i, buf_len, num_clauses, len;
MonoJitInfo *jinfo;
guint used_int_regs, flags;
gboolean has_generic_jit_info, has_dwarf_unwind_info, has_clauses, has_seq_points, has_try_block_holes, has_arch_eh_jit_info;
@@ -2337,8 +2360,10 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
guint8 *p;
int generic_info_size, try_holes_info_size, num_holes, arch_eh_jit_info_size;
int this_reg = 0, this_offset = 0;
+ gboolean async;
/* Load the method info from the AOT file */
+ async = mono_thread_info_is_async_context ();
p = ex_info;
flags = decode_value (p, &p);
@@ -2385,6 +2410,9 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
MonoJitExceptionInfo *clauses;
GSList **nesting;
+ // FIXME: async
+ g_assert (!async);
+
/*
* Part of the info is encoded by the AOT compiler, the rest is in the .eh_frame
* section.
@@ -2417,8 +2445,8 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
g_slist_free (nesting [i]);
g_free (nesting);
} else {
- jinfo =
- mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO + (sizeof (MonoJitExceptionInfo) * num_clauses) + generic_info_size + try_holes_info_size + arch_eh_jit_info_size);
+ len = MONO_SIZEOF_JIT_INFO + (sizeof (MonoJitExceptionInfo) * num_clauses) + generic_info_size + try_holes_info_size + arch_eh_jit_info_size;
+ jinfo = alloc0_jit_info_data (domain, len, async);
jinfo->num_clauses = num_clauses;
for (i = 0; i < jinfo->num_clauses; ++i) {
@@ -2431,8 +2459,14 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
ei->data.filter = code + decode_value (p, &p);
else {
- if (decode_value (p, &p))
- ei->data.catch_class = decode_klass_ref (amodule, p, &p);
+ int len = decode_value (p, &p);
+
+ if (len > 0) {
+ if (async)
+ p += len;
+ else
+ ei->data.catch_class = decode_klass_ref (amodule, p, &p);
+ }
}
ei->try_start = code + decode_value (p, &p);
@@ -2442,14 +2476,49 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
jinfo->code_size = code_len;
jinfo->used_regs = used_int_regs;
- jinfo->method = method;
+ jinfo->d.method = method;
jinfo->code_start = code;
jinfo->domain_neutral = 0;
jinfo->from_aot = 1;
}
+ if (has_try_block_holes) {
+ MonoTryBlockHoleTableJitInfo *table;
+
+ jinfo->has_try_block_holes = 1;
+
+ table = mono_jit_info_get_try_block_hole_table_info (jinfo);
+ g_assert (table);
+
+ table->num_holes = (guint16)num_holes;
+ for (i = 0; i < num_holes; ++i) {
+ MonoTryBlockHoleJitInfo *hole = &table->holes [i];
+ hole->clause = decode_value (p, &p);
+ hole->length = decode_value (p, &p);
+ hole->offset = decode_value (p, &p);
+ }
+ }
+
+ if (has_arch_eh_jit_info) {
+ MonoArchEHJitInfo *eh_info;
+
+ jinfo->has_arch_eh_info = 1;
+
+ eh_info = mono_jit_info_get_arch_eh_info (jinfo);
+ eh_info->stack_size = decode_value (p, &p);
+ }
+
+ if (async) {
+ /* The rest is not needed in async mode */
+ jinfo->async = TRUE;
+ jinfo->d.aot_info = amodule;
+ // FIXME: Cache
+ return jinfo;
+ }
+
if (has_generic_jit_info) {
MonoGenericJitInfo *gi;
+ int len;
jinfo->has_generic_jit_info = 1;
@@ -2458,7 +2527,7 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
gi->nlocs = decode_value (p, &p);
if (gi->nlocs) {
- gi->locations = mono_domain_alloc0 (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
+ gi->locations = alloc0_jit_info_data (domain, gi->nlocs * sizeof (MonoDwarfLocListEntry), async);
for (i = 0; i < gi->nlocs; ++i) {
MonoDwarfLocListEntry *entry = &gi->locations [i];
@@ -2482,7 +2551,11 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
}
}
- jinfo->method = decode_resolve_method_ref (amodule, p, &p);
+ len = decode_value (p, &p);
+ if (async)
+ p += len;
+ else
+ jinfo->d.method = decode_resolve_method_ref (amodule, p, &p);
gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
if (decode_value (p, &p)) {
@@ -2492,46 +2565,20 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
n = decode_value (p, &p);
if (n) {
- gsctx->var_is_vt = g_new0 (gboolean, n);
+ gsctx->var_is_vt = alloc0_jit_info_data (domain, sizeof (gboolean) * n, async);
for (i = 0; i < n; ++i)
gsctx->var_is_vt [i] = decode_value (p, &p);
}
n = decode_value (p, &p);
if (n) {
- gsctx->mvar_is_vt = g_new0 (gboolean, n);
+ gsctx->mvar_is_vt = alloc0_jit_info_data (domain, sizeof (gboolean) * n, async);
for (i = 0; i < n; ++i)
gsctx->mvar_is_vt [i] = decode_value (p, &p);
}
}
}
- if (has_try_block_holes) {
- MonoTryBlockHoleTableJitInfo *table;
-
- jinfo->has_try_block_holes = 1;
-
- table = mono_jit_info_get_try_block_hole_table_info (jinfo);
- g_assert (table);
-
- table->num_holes = (guint16)num_holes;
- for (i = 0; i < num_holes; ++i) {
- MonoTryBlockHoleJitInfo *hole = &table->holes [i];
- hole->clause = decode_value (p, &p);
- hole->length = decode_value (p, &p);
- hole->offset = decode_value (p, &p);
- }
- }
-
- if (has_arch_eh_jit_info) {
- MonoArchEHJitInfo *eh_info;
-
- jinfo->has_arch_eh_info = 1;
-
- eh_info = mono_jit_info_get_arch_eh_info (jinfo);
- eh_info->stack_size = decode_value (p, &p);
- }
-
- if (has_seq_points) {
+ if (method && has_seq_points) {
MonoSeqPointInfo *seq_points;
int il_offset, native_offset, last_il_offset, last_native_offset, j;
@@ -2548,6 +2595,7 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
sp->il_offset = il_offset;
sp->native_offset = native_offset;
+ sp->flags = decode_value (p, &p);
sp->next_len = decode_value (p, &p);
sp->next = g_new (int, sp->next_len);
for (j = 0; j < sp->next_len; ++j)
@@ -2564,7 +2612,8 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
/* Load debug info */
buf_len = decode_value (p, &p);
- mono_debug_add_aot_method (domain, method, code, p, buf_len);
+ if (!async)
+ mono_debug_add_aot_method (domain, method, code, p, buf_len);
p += buf_len;
if (has_gc_map) {
@@ -2576,7 +2625,7 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
p += map_size;
}
- if (amodule != jinfo->method->klass->image->aot_module) {
+ if (amodule != jinfo->d.method->klass->image->aot_module) {
mono_aot_lock ();
if (!ji_to_amodule)
ji_to_amodule = g_hash_table_new (NULL, NULL);
@@ -2595,10 +2644,14 @@ decode_exception_debug_info (MonoAotModule *amodule, MonoDomain *domain,
guint8*
mono_aot_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
{
- MonoAotModule *amodule = ji->method->klass->image->aot_module;
+ MonoAotModule *amodule;
guint8 *p;
guint8 *code = ji->code_start;
+ if (ji->async)
+ amodule = ji->d.aot_info;
+ else
+ amodule = jinfo_get_method (ji)->klass->image->aot_module;
g_assert (amodule);
g_assert (ji->from_aot);
@@ -2677,6 +2730,13 @@ msort_code_offsets (gint32 *array, int len)
g_free (scratch);
}
+/*
+ * mono_aot_find_jit_info:
+ *
+ * In async context, the resulting MonoJitInfo will not have its method field set, and it will not be added
+ * to the jit info tables.
+ * FIXME: Large sizes in the lock free allocator
+ */
MonoJitInfo *
mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
{
@@ -2684,13 +2744,14 @@ mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
int method_index, table_len;
guint32 token;
MonoAotModule *amodule = image->aot_module;
- MonoMethod *method;
+ MonoMethod *method = NULL;
MonoJitInfo *jinfo;
guint8 *code, *ex_info, *p;
guint32 *table;
int nmethods = amodule->info.nmethods;
gint32 *code_offsets;
int offsets_len, i;
+ gboolean async;
if (!amodule)
return NULL;
@@ -2699,10 +2760,13 @@ mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
/* FIXME: */
return NULL;
+ async = mono_thread_info_is_async_context ();
+
offset = (guint8*)addr - amodule->code;
/* Compute a sorted table mapping code offsets to method indexes. */
if (!amodule->sorted_code_offsets) {
+ // FIXME: async
code_offsets = g_new0 (gint32, nmethods * 2);
offsets_len = 0;
for (i = 0; i < nmethods; ++i) {
@@ -2757,6 +2821,20 @@ mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
g_assert (offset < code_offsets [((pos + 1) * 2)]);
method_index = code_offsets [(pos * 2) + 1];
+ /* In async mode, jinfo is not added to the normal jit info table, so have to cache it ourselves */
+ if (async) {
+ JitInfoMap *table = amodule->async_jit_info_table;
+ int len;
+
+ if (table) {
+ len = table [0].method_index;
+ for (i = 1; i < len; ++i) {
+ if (table [i].method_index == method_index)
+ return table [i].jinfo;
+ }
+ }
+ }
+
code = &amodule->code [amodule->code_offsets [method_index]];
ex_info = &amodule->blob [mono_aot_get_offset (amodule->ex_info_offsets, method_index)];
@@ -2768,54 +2846,55 @@ mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
g_assert ((guint8*)code <= (guint8*)addr && (guint8*)addr < (guint8*)code + code_len);
/* Might be a wrapper/extra method */
- if (amodule->extra_methods) {
- mono_aot_lock ();
- method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
- mono_aot_unlock ();
- } else {
- method = NULL;
- }
-
- if (!method) {
- if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
- /*
- * This is hit for extra methods which are called directly, so they are
- * not in amodule->extra_methods.
- */
- table_len = amodule->extra_method_info_offsets [0];
- table = amodule->extra_method_info_offsets + 1;
- left = 0;
- right = table_len;
- pos = 0;
-
- /* Binary search */
- while (TRUE) {
- pos = ((left + right) / 2);
+ if (!async) {
+ if (amodule->extra_methods) {
+ mono_aot_lock ();
+ method = g_hash_table_lookup (amodule->extra_methods, GUINT_TO_POINTER (method_index));
+ mono_aot_unlock ();
+ } else {
+ method = NULL;
+ }
- g_assert (pos < table_len);
+ if (!method) {
+ if (method_index >= image->tables [MONO_TABLE_METHOD].rows) {
+ /*
+ * This is hit for extra methods which are called directly, so they are
+ * not in amodule->extra_methods.
+ */
+ table_len = amodule->extra_method_info_offsets [0];
+ table = amodule->extra_method_info_offsets + 1;
+ left = 0;
+ right = table_len;
+ pos = 0;
+
+ /* Binary search */
+ while (TRUE) {
+ pos = ((left + right) / 2);
+
+ g_assert (pos < table_len);
+
+ if (table [pos * 2] < method_index)
+ left = pos + 1;
+ else if (table [pos * 2] > method_index)
+ right = pos;
+ else
+ break;
+ }
- if (table [pos * 2] < method_index)
- left = pos + 1;
- else if (table [pos * 2] > method_index)
- right = pos;
- else
- break;
+ p = amodule->blob + table [(pos * 2) + 1];
+ method = decode_resolve_method_ref (amodule, p, &p);
+ if (!method)
+ /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
+ return NULL;
+ } else {
+ token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
+ method = mono_get_method (image, token, NULL);
}
-
- p = amodule->blob + table [(pos * 2) + 1];
- method = decode_resolve_method_ref (amodule, p, &p);
- if (!method)
- /* Happens when a random address is passed in which matches a not-yey called wrapper encoded using its name */
- return NULL;
- } else {
- token = mono_metadata_make_token (MONO_TABLE_METHOD, method_index + 1);
- method = mono_get_method (image, token, NULL);
}
+ /* FIXME: */
+ g_assert (method);
}
- /* FIXME: */
- g_assert (method);
-
//printf ("F: %s\n", mono_method_full_name (method, TRUE));
jinfo = decode_exception_debug_info (amodule, domain, method, ex_info, addr, code, code_len);
@@ -2824,7 +2903,35 @@ mono_aot_find_jit_info (MonoDomain *domain, MonoImage *image, gpointer addr)
g_assert ((guint8*)addr < (guint8*)jinfo->code_start + jinfo->code_size);
/* Add it to the normal JitInfo tables */
- mono_jit_info_table_add (domain, jinfo);
+ if (async) {
+ JitInfoMap *old_table, *new_table;
+ int len;
+
+ /*
+ * Use a simple inmutable table with linear search to cache async jit info entries.
+ * This assumes that the number of entries is small.
+ */
+ while (TRUE) {
+ /* Copy the table, adding a new entry at the end */
+ old_table = amodule->async_jit_info_table;
+ if (old_table)
+ len = old_table[0].method_index;
+ else
+ len = 1;
+ new_table = alloc0_jit_info_data (domain, (len + 1) * sizeof (JitInfoMap), async);
+ if (old_table)
+ memcpy (new_table, old_table, len * sizeof (JitInfoMap));
+ new_table [0].method_index = len + 1;
+ new_table [len].method_index = method_index;
+ new_table [len].jinfo = jinfo;
+ /* Publish it */
+ mono_memory_barrier ();
+ if (InterlockedCompareExchangePointer ((gpointer)&amodule->async_jit_info_table, new_table, old_table) == old_table)
+ break;
+ }
+ } else {
+ mono_jit_info_table_add (domain, jinfo);
+ }
return jinfo;
}
@@ -2841,7 +2948,8 @@ decode_patch (MonoAotModule *aot_module, MonoMemPool *mp, MonoJumpInfo *ji, guin
case MONO_PATCH_INFO_METHOD:
case MONO_PATCH_INFO_METHOD_JUMP:
case MONO_PATCH_INFO_ICALL_ADDR:
- case MONO_PATCH_INFO_METHOD_RGCTX: {
+ case MONO_PATCH_INFO_METHOD_RGCTX:
+ case MONO_PATCH_INFO_METHOD_CODE_SLOT: {
MethodRef ref;
gboolean res;
@@ -3635,7 +3743,7 @@ mono_aot_get_method (MonoDomain *domain, MonoMethod *method)
char *full_name;
full_name = mono_method_full_name (method, TRUE);
- mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.\n", full_name);
+ mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_AOT, "AOT NOT FOUND: %s.", full_name);
g_free (full_name);
}
return NULL;
@@ -4168,14 +4276,16 @@ get_new_trampoline_from_page (int tramp_type)
vm_address_t addr, taddr;
kern_return_t ret;
vm_prot_t prot, max_prot;
- int psize;
+ int psize, specific_trampoline_size;
unsigned char *code;
+ specific_trampoline_size = 2 * sizeof (gpointer);
+
mono_aot_page_lock ();
page = trampoline_pages [tramp_type];
if (page && page->trampolines < page->trampolines_end) {
code = page->trampolines;
- page->trampolines += 8;
+ page->trampolines += specific_trampoline_size;
mono_aot_page_unlock ();
return code;
}
@@ -4188,6 +4298,8 @@ get_new_trampoline_from_page (int tramp_type)
amodule = image->aot_module;
g_assert (amodule);
+ g_assert (amodule->info.tramp_page_size == psize);
+
if (tramp_type == MONO_AOT_TRAMP_SPECIFIC)
tpage = load_function (amodule, "specific_trampolines_page");
else if (tramp_type == MONO_AOT_TRAMP_STATIC_RGCTX)
@@ -4231,7 +4343,7 @@ get_new_trampoline_from_page (int tramp_type)
/* some other thread already allocated, so use that to avoid wasting memory */
if (page && page->trampolines < page->trampolines_end) {
code = page->trampolines;
- page->trampolines += 8;
+ page->trampolines += specific_trampoline_size;
mono_aot_page_unlock ();
vm_deallocate (mach_task_self (), addr, psize);
vm_deallocate (mach_task_self (), taddr, psize);
@@ -4343,7 +4455,7 @@ get_numerous_trampoline (MonoAotTrampoline tramp_type, int n_got_slots, MonoAotM
*out_amodule = amodule;
#ifdef MONOTOUCH
-#define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instruction on how to fix this condition"
+#define MONOTOUCH_TRAMPOLINES_ERROR ". See http://docs.xamarin.com/ios/troubleshooting for instructions on how to fix this condition."
#else
#define MONOTOUCH_TRAMPOLINES_ERROR ""
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-09 23:04:43 +0000