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--- libmalloc/libmalloc-657.80.3/src/malloc.c
+++ libmalloc/libmalloc-474.0.13/src/malloc.c
@@ -21,13 +21,6 @@
* @APPLE_LICENSE_HEADER_END@
*/
-/*
- * Needed for definition of MALLOC_MSL_LITE_WRAPPED_ZONE_FLAGS
- */
-#ifndef MALLOC_ENABLE_MSL_LITE_SPI
-#define MALLOC_ENABLE_MSL_LITE_SPI 1
-#endif // MALLOC_ENABLE_MSL_LITE_SPI
-
#include "internal.h"
#if MALLOC_TARGET_IOS
@@ -68,21 +61,7 @@
malloc_zone_t *initial_xzone_zone;
static malloc_zone_t *default_purgeable_zone;
static bool has_injected_zone0;
-static bool malloc_xzone_enabled = MALLOC_XZONE_ENABLED_DEFAULT;
-
-typedef enum {
- MALLOC_XZONE_OVERRIDE_DEFAULT,
- MALLOC_XZONE_OVERRIDE_DISABLED,
- MALLOC_XZONE_OVERRIDE_ENABLED,
-} malloc_xzone_override_t;
-
-static malloc_xzone_override_t malloc_xzone_enabled_override;
-static malloc_xzone_override_t malloc_xzone_nano_override;
-static malloc_xzone_override_t malloc_nano_on_xzone_override;
-
-#if CONFIG_CHECK_PLATFORM_BINARY
-static bool malloc_xzone_allow_non_platform;
-#endif // CONFIG_CHECK_PLATFORM_BINARY
+static bool malloc_xzone_enabled;
unsigned malloc_debug_flags = 0;
bool malloc_tracing_enabled = false;
@@ -92,7 +71,6 @@
bool malloc_sanitizer_enabled = false;
bool malloc_interposition_compat = false;
-
#if CONFIG_MALLOC_PROCESS_IDENTITY
malloc_process_identity_t malloc_process_identity = MALLOC_PROCESS_NONE;
@@ -108,7 +86,7 @@
#define MALLOC_SIMPLE_STACK_LOGGING_FLAGS \
(ASL_LEVEL_NOTICE | MALLOC_REPORT_NOPREFIX | MALLOC_REPORT_BACKTRACE | MALLOC_REPORT_NOWRITE)
-bool malloc_slowpath = false;
+static bool malloc_slowpath = false;
static struct _malloc_msl_symbols msl = {};
@@ -130,6 +108,36 @@
/* These masks are exported for libdispatch to register with (see "internal.h") */
const unsigned long malloc_memorypressure_mask_default_4libdispatch = MALLOC_MEMORYPRESSURE_MASK_DEFAULT;
const unsigned long malloc_memorypressure_mask_msl_4libdispatch = MALLOC_MEMORYPRESSURE_MASK_MSL;
+
+// TODO delete this, its only used some deprecated functions like turn_on_stack_logging,
+// which have been replaced by functions in MallocStackLogging.framework
+// (like msl_turn_on_stack_logging)
+static struct msl_dylib {
+
+ void *dylib;
+
+ kern_return_t (*get_frames_for_address)(task_t task,
+ mach_vm_address_t address,
+ mach_vm_address_t *stack_frames_buffer,
+ uint32_t max_stack_frames,
+ uint32_t *count);
+
+ uint64_t (*stackid_for_vm_region) (task_t task, mach_vm_address_t address);
+
+ kern_return_t (*get_frames_for_stackid) (task_t task,
+ uint64_t stack_identifier,
+ mach_vm_address_t *stack_frames_buffer,
+ uint32_t max_stack_frames,
+ uint32_t *count,
+ bool *last_frame_is_threadid);
+
+
+ kern_return_t (*uniquing_table_read_stack) (struct backtrace_uniquing_table *uniquing_table,
+ uint64_t stackid,
+ mach_vm_address_t *out_frames_buffer,
+ uint32_t *out_frames_count,
+ uint32_t max_frames);
+} msld = {};
MALLOC_NOEXPORT malloc_zone_t* lite_zone = NULL;
@@ -197,9 +205,6 @@
static const char medium_madvise_dram_scale_divisor_boot_arg[] = "malloc_medium_madvise_dram_scale_divisor";
#endif // CONFIG_MEDIUM_ALLOCATOR
-static
-bool malloc_report_config = false;
-
/********* Utilities ************/
static bool _malloc_entropy_initialized;
@@ -225,13 +230,13 @@
lite_zone ||
malloc_tracing_enabled ||
malloc_simple_stack_logging ||
- (malloc_debug_flags & MALLOC_DO_SCRIBBLE) != 0 ||
malloc_interposition_compat;
if (malloc_slowpath != slowpath) {
malloc_slowpath = slowpath;
}
}
+
void __malloc_init(const char *apple[]);
static void _malloc_initialize(const char *apple[], const char *bootargs);
@@ -428,7 +433,7 @@
#if CONFIG_MALLOC_PROCESS_IDENTITY
static void
-_malloc_check_process_identity(const char *apple[])
+_malloc_check_process_identity(void)
{
static const struct {
const char *name;
@@ -453,7 +458,6 @@
{ "audiomxd", MALLOC_PROCESS_AUDIOMXD, },
{ "avconferenced", MALLOC_PROCESS_AVCONFERENCED, },
{ "mediaserverd", MALLOC_PROCESS_MEDIASERVERD, },
- { "cameracaptured", MALLOC_PROCESS_CAMERACAPTURED, },
{ "MessagesBlastDoorService", MALLOC_PROCESS_BLASTDOOR_MESSAGES, },
{ "MessagesAirlockService", MALLOC_PROCESS_BLASTDOOR_MESSAGES, },
@@ -465,38 +469,12 @@
{ "com.apple.quicklook.extension.previewUI", MALLOC_PROCESS_QUICKLOOK_PREVIEW, },
{ "QuickLookUIExtension", MALLOC_PROCESS_QUICKLOOK_PREVIEW, },
{ "ThumbnailExtension", MALLOC_PROCESS_QUICKLOOK_THUMBNAIL },
-#if TARGET_OS_OSX
- // Load-bearing: not already MallocSpaceEfficient
- { "QuickLookUIService", MALLOC_PROCESS_QUICKLOOK_UISERVICE },
- // Already MallocSpaceEfficient, but valuable to identify as
- // security-relevant for other special treatment
- { "ThumbnailExtension_macOS", MALLOC_PROCESS_QUICKLOOK_THUMBNAIL },
- { "QuickLookSatellite", MALLOC_PROCESS_QUICKLOOK_MACOS },
- { "quicklookd", MALLOC_PROCESS_QUICKLOOK_MACOS },
- { "com.apple.quicklook.ThumbnailsAgent", MALLOC_PROCESS_QUICKLOOK_MACOS },
- { "ExternalQuickLookSatellite-arm64", MALLOC_PROCESS_QUICKLOOK_MACOS },
- { "ExternalQuickLookSatellite-x86_64", MALLOC_PROCESS_QUICKLOOK_MACOS },
-#endif // TARGET_OS_OSX
-
- { "MobileSafari", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.Networking", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.GPU", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.WebContent", MALLOC_PROCESS_BROWSER, },
- { "com.apple.WebKit.WebContent.CaptivePortal", MALLOC_PROCESS_BROWSER, },
+
+ { "com.apple.WebKit.Networking", MALLOC_PROCESS_WEBKIT_NETWORKING, },
+ { "com.apple.WebKit.GPU", MALLOC_PROCESS_WEBKIT_GPU, },
{ "MTLCompilerService", MALLOC_PROCESS_MTLCOMPILERSERVICE },
-
-#if TARGET_OS_OSX
- { "Safari", MALLOC_PROCESS_SAFARI, },
- { "com.apple.Safari.CredentialExtractionHelper", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.Safari.History", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.Safari.SandboxBroker", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.Safari.SearchHelper", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.SafariFoundation.CredentialProviderExtensionHelper", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.SafariPlatformSupport.Helper", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.SafariServices.ExtensionHelper", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "com.apple.SafariServices", MALLOC_PROCESS_SAFARI_SUPPORT, },
- { "VTDecoderXPCService", MALLOC_PROCESS_VTDECODERXPCSERVICE, },
-#endif // TARGET_OS_OSX
+ { "com.apple.WebKit.WebContent", MALLOC_PROCESS_WEBKIT_WEBCONTENT, },
+ { "com.apple.WebKit.WebContent.CaptivePortal", MALLOC_PROCESS_WEBKIT_WEBCONTENT, },
{ "callservicesd", MALLOC_PROCESS_CALLSERVICESD, },
{ "maild", MALLOC_PROCESS_MAILD, },
@@ -510,39 +488,11 @@
{ "CommCenter", MALLOC_PROCESS_COMMCENTER, },
{ "wifip2pd", MALLOC_PROCESS_WIFIP2PD, },
{ "wifianalyticsd", MALLOC_PROCESS_WIFIANALYTICSD, },
-
- { "mds_stores", MALLOC_PROCESS_MDS_STORES },
-
- { "AegirPoster", MALLOC_PROCESS_AEGIRPOSTER, },
- { "CollectionsPoster", MALLOC_PROCESS_COLLECTIONSPOSTER, },
};
if (getpid() == 1) {
malloc_process_identity = MALLOC_PROCESS_LAUNCHD;
return;
- }
-
- const char *flag = _simple_getenv(apple, "HardenedRuntime");
- if (flag) {
- unsigned long long value = strtoull(flag, NULL, 0);
- if (value) {
- // reproduced from xnu
- enum {
- MallocBrowserHostEntitlementMask = 0x01,
- MallocBrowserGPUEntitlementMask = 0x02,
- MallocBrowserNetworkEntitlementMask = 0x04,
- MallocBrowserWebContentEntitlementMask = 0x08,
- };
-
- long enablement_mask = MallocBrowserHostEntitlementMask |
- MallocBrowserGPUEntitlementMask |
- MallocBrowserNetworkEntitlementMask |
- MallocBrowserWebContentEntitlementMask;
- if (value & enablement_mask) {
- malloc_process_identity = MALLOC_PROCESS_BROWSER;
- return;
- }
- }
}
const char *name = getprogname();
@@ -566,79 +516,61 @@
return MALLOC_SECURE_ALLOCATOR_LAUNCHD_ENABLED_DEFAULT;
}
-#define ENABLEMENT_CASE(id, enable_status) \
+ if (os_feature_enabled_simple(libmalloc,
+ SecureAllocator_AllInitialProcesses, false)) {
+ switch (malloc_process_identity) {
+ case MALLOC_PROCESS_COMMCENTER:
+ // Enabled by explicit feature flag only
+ break;
+ default:
+ return true;
+ }
+ }
+
+#define ENABLEMENT_CASE(id, name, simulator_default) \
case MALLOC_PROCESS_##id: \
- return (enable_status);
-#define ENABLEMENT_CASE_FF(id, name, darwin_default, simulator_default) \
- case MALLOC_PROCESS_##id: \
- return malloc_secure_feature_enabled(SecureAllocator_process_##name, \
- (darwin_default), (simulator_default))
-
+ return os_feature_enabled_simple(libmalloc, \
+ SecureAllocator_process_##name, (simulator_default))
switch (malloc_process_identity) {
- ENABLEMENT_CASE(LOGD, true);
- ENABLEMENT_CASE(NOTIFYD, true);
-
- ENABLEMENT_CASE(MEDIAPARSERD, true);
- ENABLEMENT_CASE(VIDEOCODECD, true);
- ENABLEMENT_CASE(MEDIAPLAYBACKD, true);
- ENABLEMENT_CASE(AVCONFERENCED, true);
- ENABLEMENT_CASE(MEDIASERVERD, true);
- ENABLEMENT_CASE(AUDIOMXD, true);
- ENABLEMENT_CASE(CAMERACAPTURED, true);
-
- ENABLEMENT_CASE(BLASTDOOR_MESSAGES, true);
- ENABLEMENT_CASE(BLASTDOOR_IDS, true);
- ENABLEMENT_CASE(IMDPERSISTENCEAGENT, true);
- ENABLEMENT_CASE(IMAGENT, true);
-
-#if TARGET_OS_OSX
- ENABLEMENT_CASE(QUICKLOOK_MACOS, true);
- ENABLEMENT_CASE(QUICKLOOK_UISERVICE, true);
-#endif
- ENABLEMENT_CASE(QUICKLOOK_THUMBNAIL_SECURE, true);
- ENABLEMENT_CASE(QUICKLOOK_PREVIEW, true);
- ENABLEMENT_CASE(QUICKLOOK_THUMBNAIL, true);
-
-#if TARGET_OS_OSX
- ENABLEMENT_CASE_FF(MTLCOMPILERSERVICE, MTLCompilerService, false, false);
-#else
- ENABLEMENT_CASE(MTLCOMPILERSERVICE, true);
-#endif
-
- ENABLEMENT_CASE(CALLSERVICESD, true);
- ENABLEMENT_CASE(MAILD, true);
- ENABLEMENT_CASE(MDNSRESPONDER, true);
- ENABLEMENT_CASE(ASVASSETVIEWER, true);
- ENABLEMENT_CASE(IDENTITYSERVICESD, true);
- ENABLEMENT_CASE(WIFID, true);
- ENABLEMENT_CASE(FMFD, true);
- ENABLEMENT_CASE(SEARCHPARTYD, true);
- ENABLEMENT_CASE(VMD, true);
- ENABLEMENT_CASE(WIFIP2PD, true);
- ENABLEMENT_CASE(WIFIANALYTICSD, true);
-
- ENABLEMENT_CASE(COMMCENTER, true);
-
-#if TARGET_OS_SIMULATOR
- ENABLEMENT_CASE(BROWSER, false);
-#else
- ENABLEMENT_CASE(BROWSER, true);
-#endif // TARGET_OS_SIMULATOR
-
-#if TARGET_OS_OSX
- ENABLEMENT_CASE(SAFARI, true);
- ENABLEMENT_CASE(SAFARI_SUPPORT, true);
-#endif
-
- ENABLEMENT_CASE_FF(AEGIRPOSTER, aegirposter, false, false);
- ENABLEMENT_CASE_FF(COLLECTIONSPOSTER, CollectionsPoster, false, false);
-
-#if TARGET_OS_OSX
- ENABLEMENT_CASE(VTDECODERXPCSERVICE, true);
-#endif
-
- ENABLEMENT_CASE(MDS_STORES, true);
+ ENABLEMENT_CASE(LOGD, logd, true);
+ ENABLEMENT_CASE(NOTIFYD, notifyd, true);
+
+ ENABLEMENT_CASE(MEDIAPARSERD, mediaparserd, true);
+ ENABLEMENT_CASE(VIDEOCODECD, videocodecd, true);
+ ENABLEMENT_CASE(MEDIAPLAYBACKD, mediaplaybackd, true);
+ ENABLEMENT_CASE(AVCONFERENCED, avconferenced, true);
+ ENABLEMENT_CASE(MEDIASERVERD, mediaserverd, true);
+ ENABLEMENT_CASE(AUDIOMXD, audiomxd, true);
+
+ ENABLEMENT_CASE(BLASTDOOR_MESSAGES, blastdoor_messages, true);
+ ENABLEMENT_CASE(BLASTDOOR_IDS, blastdoor_ids, true);
+ ENABLEMENT_CASE(IMDPERSISTENCEAGENT, IMDPersistenceAgent, true);
+ ENABLEMENT_CASE(IMAGENT, imagent, true);
+
+ ENABLEMENT_CASE(QUICKLOOK_THUMBNAIL_SECURE, ThumbnailExtensionSecure, true);
+ ENABLEMENT_CASE(QUICKLOOK_PREVIEW, quicklook_preview, true);
+ ENABLEMENT_CASE(QUICKLOOK_THUMBNAIL, ThumbnailExtension, true);
+
+ ENABLEMENT_CASE(MTLCOMPILERSERVICE, MTLCompilerService, true);
+
+ ENABLEMENT_CASE(CALLSERVICESD, callservicesd, true);
+ ENABLEMENT_CASE(MAILD, maild, true);
+ ENABLEMENT_CASE(MDNSRESPONDER, mDNSResponder, true);
+ ENABLEMENT_CASE(ASVASSETVIEWER, ASVAssetViewer, true);
+ ENABLEMENT_CASE(IDENTITYSERVICESD, identityservicesd, true);
+ ENABLEMENT_CASE(WIFID, wifid, true);
+ ENABLEMENT_CASE(FMFD, fmfd, true);
+ ENABLEMENT_CASE(SEARCHPARTYD, searchpartyd, true);
+ ENABLEMENT_CASE(VMD, vmd, true);
+ ENABLEMENT_CASE(WIFIP2PD, wifip2pd, true);
+ ENABLEMENT_CASE(WIFIANALYTICSD, wifianalyticsd, true);
+
+ ENABLEMENT_CASE(COMMCENTER, CommCenter, true);
+
+ ENABLEMENT_CASE(WEBKIT_NETWORKING, WebKit_Networking, true);
+ ENABLEMENT_CASE(WEBKIT_GPU, WebKit_GPU, true);
+ ENABLEMENT_CASE(WEBKIT_WEBCONTENT, WebKit_WebContent, true);
default:
return false;
@@ -659,40 +591,18 @@
MALLOC_ZERO_ON_FREE : MALLOC_ZERO_NONE;
}
- bool secure_allocator = false;
+ bool secure_allocator = os_feature_enabled_simple(libmalloc,
+ SecureAllocator_SystemWide, false);
#if CONFIG_MALLOC_PROCESS_IDENTITY
- if (malloc_process_identity != MALLOC_PROCESS_NONE) {
+ if (!secure_allocator && malloc_process_identity != MALLOC_PROCESS_NONE) {
secure_allocator = _malloc_check_secure_allocator_process_enablement();
- } else
-#endif // CONFIG_MALLOC_PROCESS_IDENTITY
- {
-#if MALLOC_TARGET_IOS_ONLY
- secure_allocator = malloc_secure_feature_enabled(
- SecureAllocator_SystemWide, true, true);
-#else
- secure_allocator = malloc_secure_feature_enabled(
- SecureAllocator_SystemWide, false, false);
-#endif // MALLOC_TARGET_IOS_ONLY
- }
-
-#if TARGET_OS_OSX && !TARGET_CPU_ARM64
- if (!os_feature_enabled_simple(libmalloc, SecureAllocator_Intel, false)) {
- secure_allocator = false;
- }
-#endif // TARGET_OS_OSX && !TARGET_CPU_ARM64
-
-#if TARGET_OS_OSX
- bool allow_non_platform = os_feature_enabled_simple(libmalloc,
- SecureAllocator_NonPlatform, false);
- if (malloc_xzone_allow_non_platform != allow_non_platform) {
- malloc_xzone_allow_non_platform = allow_non_platform;
- }
-#endif // TARGET_OS_OSX
+ }
+#endif
if (secure_allocator != malloc_xzone_enabled) {
malloc_xzone_enabled = secure_allocator;
}
-#endif // CONFIG_FEATUREFLAGS_SIMPLE
+#endif
}
extern malloc_zone_t *force_asan_init_if_present(void)
@@ -729,22 +639,8 @@
// runtime values of vm_kernel_page_size and vm_page_size
malloc_absolute_max_size = _MALLOC_ABSOLUTE_MAX_SIZE;
-#if CONFIG_CHECK_PLATFORM_BINARY
- bool is_platform_binary = _malloc_is_platform_binary();
- if (malloc_is_platform_binary != is_platform_binary) {
- malloc_is_platform_binary = is_platform_binary;
- }
-#endif
-
-#if CONFIG_CHECK_SECURITY_POLICY
- bool allow_internal_security = _malloc_allow_internal_security_policy();
- if (allow_internal_security != malloc_internal_security_policy) {
- malloc_internal_security_policy = allow_internal_security;
- }
-#endif
-
#if CONFIG_MALLOC_PROCESS_IDENTITY
- _malloc_check_process_identity(apple);
+ _malloc_check_process_identity();
#endif
_malloc_init_featureflags();
@@ -839,7 +735,7 @@
MALLOC_ALWAYS_INLINE
static inline malloc_zone_t *
-runtime_default_zone(void) {
+runtime_default_zone() {
return (lite_zone) ? lite_zone : inline_malloc_default_zone();
}
@@ -1077,7 +973,7 @@
default_zone_malloc_claimed_address,
};
-MALLOC_NOEXPORT malloc_zone_t *default_zone = &virtual_default_zone.malloc_zone;
+static malloc_zone_t *default_zone = &virtual_default_zone.malloc_zone;
MALLOC_NOEXPORT
/*static*/ boolean_t
@@ -1086,9 +982,9 @@
return !has_injected_zone0;
}
-static inline malloc_zone_t *_find_registered_zone(const void *, size_t *, bool) __attribute__((always_inline));
+static inline malloc_zone_t *find_registered_zone(const void *, size_t *, bool) __attribute__((always_inline));
static inline malloc_zone_t *
-_find_registered_zone(const void *ptr, size_t *returned_size, bool known_non_default)
+find_registered_zone(const void *ptr, size_t *returned_size, bool known_non_default)
{
// Returns a zone which contains ptr, else NULL
@@ -1176,13 +1072,6 @@
return zone;
}
-malloc_zone_t *
-find_registered_zone(const void *ptr, size_t *returned_size,
- bool known_non_default)
-{
- return _find_registered_zone(ptr, returned_size, known_non_default);
-}
-
void
malloc_error_break(void)
{
@@ -1323,9 +1212,7 @@
phys_ncpus = *(uint8_t *)(uintptr_t)_COMM_PAGE_PHYSICAL_CPUS;
logical_ncpus = *(uint8_t *)(uintptr_t)_COMM_PAGE_LOGICAL_CPUS;
#if CONFIG_MAGAZINE_PER_CLUSTER
- {
- ncpuclusters = *(uint8_t *)(uintptr_t)_COMM_PAGE_CPU_CLUSTERS;
- }
+ ncpuclusters = *(uint8_t *)(uintptr_t)_COMM_PAGE_CPU_CLUSTERS;
#endif // CONFIG_MAGAZINE_PER_CLUSTER
if (0 != (logical_ncpus % phys_ncpus)) {
@@ -1363,30 +1250,21 @@
max_medium_magazines = max_magazines;
}
- // Don't enable for pre-AMP iOS hardware, which we identify as "iOS, plain
- // arm64"
-#if CONFIG_MAGAZINE_PER_CLUSTER && \
- (MALLOC_TARGET_IOS_ONLY || MALLOC_TARGET_DK_IOS) && \
- defined(__arm64__) && !defined(__arm64e__)
+#if CONFIG_MAGAZINE_PER_CLUSTER && CONFIG_FEATUREFLAGS_SIMPLE
if (ncpuclusters == 1) {
-#if CONFIG_FEATUREFLAGS_SIMPLE
// Not with the other feature flag checks because ncpuclusters needs to
// be initialized first
bool secure_allocator_single_cluster = os_feature_enabled_simple(
libmalloc, SecureAllocator_SingleCluster, false);
-#else // CONFIG_FEATUREFLAGS_SIMPLE
- bool secure_allocator_single_cluster = false;
-#endif // CONFIG_FEATUREFLAGS_SIMPLE
if (malloc_xzone_enabled && !secure_allocator_single_cluster) {
malloc_xzone_enabled = false;
}
}
-#endif
+#endif // CONFIG_MAGAZINE_PER_CLUSTER
_malloc_detect_interposition();
-
- set_flags_from_environment();
+ set_flags_from_environment(); // will only set flags up to two times
#if CONFIG_SANITIZER
@@ -1397,41 +1275,33 @@
// TODO: envp should be passed down from Libsystem
const char **envp = (const char **)*_NSGetEnviron();
- // Disable nano when:
+ // Force magazine_malloc when:
// - sanitizer is enabled, to avoid speculative out-of-bounds
// use-after-free reads that nano/nanov2 performs, OR
// - MallocScribble is enabled, which nanov2 does not implement
// - MallocCheckZeroOnFreeCorruption sampling is enabled, which nanov2 does
// not implement
- if (!malloc_sanitizer_enabled &&
+ // - xzone malloc is enabled
+ if (!malloc_xzone_enabled &&
+ !malloc_sanitizer_enabled &&
!(malloc_debug_flags & MALLOC_DO_SCRIBBLE) &&
!malloc_zero_on_free_sample_period) {
nano_common_init(envp, apple, bootargs);
}
#endif // CONFIG_NANOZONE
- bool nano_on_xzone = false;
-
-
- if (!initial_xzone_zone || nano_on_xzone) {
- if (!initial_xzone_zone) {
- initial_scalable_zone = create_scalable_zone(0, malloc_debug_flags);
- malloc_set_zone_name(initial_scalable_zone, DEFAULT_MALLOC_ZONE_STRING);
- malloc_zone_register_while_locked(initial_scalable_zone, /*make_default=*/true);
- }
+
+ if (!initial_xzone_zone) {
+ initial_scalable_zone = create_scalable_zone(0, malloc_debug_flags);
+ malloc_set_zone_name(initial_scalable_zone, DEFAULT_MALLOC_ZONE_STRING);
+ malloc_zone_register_while_locked(initial_scalable_zone, /*make_default=*/true);
#if CONFIG_NANOZONE
nano_common_configure();
- malloc_zone_t *helper_zone = initial_xzone_zone ?: initial_scalable_zone;
+ malloc_zone_t *helper_zone = initial_scalable_zone;
if (_malloc_engaged_nano == NANO_V2) {
- if (malloc_report_config) {
- bool nano_on_xzone_enabled = (helper_zone == initial_xzone_zone);
- malloc_report(ASL_LEVEL_INFO, "NanoV2 Config:\n"
- "\tNano On Xzone: %d\n",
- nano_on_xzone_enabled);
- }
initial_nano_zone = nanov2_create_zone(helper_zone, malloc_debug_flags);
}
@@ -1458,38 +1328,14 @@
initial_num_zones = malloc_num_zones;
#if CONFIG_DEFERRED_RECLAIM
- kern_return_t vmdr_kr = KERN_SUCCESS;
if (large_cache_enabled) {
- if (initial_xzone_zone) {
- // xzone_malloc will own the deferred_reclaim buffer
+ kern_return_t kr = mvm_deferred_reclaim_init();
+ if (kr != KERN_SUCCESS) {
large_cache_enabled = false;
- } else {
- vmdr_kr = mvm_deferred_reclaim_init();
- if (vmdr_kr != KERN_SUCCESS) {
- large_cache_enabled = false;
- malloc_report(ASL_LEVEL_ERR, "Unable to set up reclaim buffer (%d) - disabling large cache\n", vmdr_kr);
- }
+ malloc_report(ASL_LEVEL_ERR, "Unable to set up reclaim buffer (%d) - disabling large cache\n", kr);
}
}
#endif /* CONFIG_DEFERRED_RECLAIM */
-
- if (malloc_report_config && initial_scalable_zone) {
- bool scribble = !!(malloc_debug_flags & MALLOC_DO_SCRIBBLE);
- malloc_report(ASL_LEVEL_INFO, "Magazine Config:\n"
- "\tMax Magazines: %d\n"
- "\tMedium Enabled: %d\n"
- "\tAggressive Madvise: %d\n"
-#if CONFIG_DEFERRED_RECLAIM
- "\tLarge Cache: %d%s\n"
-#endif // CONFIG_DEFERRED_RECLAIM
- "\tScribble: %d\n",
- max_magazines, magazine_medium_enabled,
- aggressive_madvise_enabled,
-#if CONFIG_DEFERRED_RECLAIM
- vmdr_kr ?: large_cache_enabled, vmdr_kr ? " (ERROR)" : "",
-#endif // CONFIG_DEFERRED_RECLAIM
- scribble);
- }
#if CONFIG_MEDIUM_ALLOCATOR
uint64_t memsize = platform_hw_memsize();
@@ -1510,20 +1356,17 @@
}
static bool
-enable_pgm(unsigned flags)
+enable_pgm(void)
{
bool other_debug_tool = has_injected_zone0 || malloc_sanitizer_enabled;
- // To avoid allocations in the lite helper zone that don't have msl data at
- // the end of the allocation, don't enable PGM on the lite helper zone
- bool zone_is_msl = flags & MALLOC_MSL_LITE_WRAPPED_ZONE_FLAGS;
- return !other_debug_tool && !zone_is_msl && pgm_should_enable();
+ return !other_debug_tool && pgm_should_enable();
}
static void
register_pgm_zone(bool internal_diagnostics)
{
pgm_init_config(internal_diagnostics);
- if (enable_pgm(0)) {
+ if (enable_pgm()) {
malloc_zone_t *wrapped_zone = malloc_zones[0];
malloc_zone_t *pgm_zone = pgm_create_zone(wrapped_zone);
malloc_zone_register_while_locked(pgm_zone, /*make_default=*/true);
@@ -1587,16 +1430,10 @@
malloc_engaged_nano(void)
{
#if CONFIG_NANOZONE
- return (initial_nano_zone || initial_xzone_zone) ? _malloc_engaged_nano : 0;
+ return _malloc_engaged_nano;
#else
return 0;
#endif
-}
-
-int
-malloc_engaged_secure_allocator(void)
-{
- return !!initial_xzone_zone;
}
static void
@@ -1699,9 +1536,6 @@
if (getenv("MallocSimpleStackLogging")) {
malloc_simple_stack_logging = true;
}
- if (getenv("MallocReportConfig")) {
- malloc_report_config = true;
- }
#if defined(__LP64__)
/* initialization above forces MALLOC_ABORT_ON_CORRUPTION of 64-bit processes */
@@ -1767,12 +1601,8 @@
malloc_report(ASL_LEVEL_INFO, "Maximum magazines defaulted to %d\n", max_magazines);
#if CONFIG_MAGAZINE_PER_CLUSTER
} else if (value == UINT16_MAX) {
- {
- max_magazines = ncpuclusters;
- malloc_report(ASL_LEVEL_INFO,
- "Maximum magazines limited to ncpuclusters (%d)\n",
- max_magazines);
- }
+ max_magazines = ncpuclusters;
+ malloc_report(ASL_LEVEL_INFO, "Maximum magazines limited to number of logical CPU clusters (%d)\n", max_magazines);
#endif // CONFIG_MAGAZINE_PER_CLUSTER
} else if (value < 0) {
malloc_report(ASL_LEVEL_ERR, "Maximum magazines must be positive - ignored.\n");
@@ -1970,44 +1800,15 @@
}
flag = getenv("MallocSecureAllocator");
- if (flag && malloc_internal_security_policy) {
+ if (flag) {
const char *endp;
long value = malloc_common_convert_to_long(flag, &endp);
if (!*endp && endp != flag && (value == 0 || value == 1)) {
malloc_xzone_enabled = value;
- malloc_xzone_enabled_override = value ?
- MALLOC_XZONE_OVERRIDE_ENABLED :
- MALLOC_XZONE_OVERRIDE_DISABLED;
} else {
malloc_report(ASL_LEVEL_ERR, "MallocSecureAllocator must be 0 or 1.\n");
}
}
-
- flag = getenv("MallocSecureAllocatorNano");
- if (flag) {
- const char *endp;
- long value = malloc_common_convert_to_long(flag, &endp);
- if (!*endp && endp != flag && (value == 0 || value == 1)) {
- malloc_xzone_nano_override = value ? MALLOC_XZONE_OVERRIDE_ENABLED :
- MALLOC_XZONE_OVERRIDE_DISABLED;
- } else {
- malloc_report(ASL_LEVEL_ERR, "MallocSecureAllocatorNano must be 0 or 1.\n");
- }
- }
-
- flag = getenv("MallocNanoOnXzone");
- if (flag) {
- const char *endp;
- long value = malloc_common_convert_to_long(flag, &endp);
- if (!*endp && endp != flag && (value == 0 || value == 1)) {
- malloc_nano_on_xzone_override = value ? MALLOC_XZONE_OVERRIDE_ENABLED :
- MALLOC_XZONE_OVERRIDE_DISABLED;
- } else {
- malloc_report(ASL_LEVEL_ERR, "MallocNanoOnXzone must be 0 or 1.\n");
- }
- }
-
-
if (getenv("MallocHelp")) {
malloc_report(ASL_LEVEL_INFO,
@@ -2035,32 +1836,25 @@
}
}
-
malloc_zone_t *
malloc_create_zone(vm_size_t start_size, unsigned flags)
{
- malloc_zone_t *zone = NULL;
+ malloc_zone_t *zone;
/* start_size doesn't actually appear to be used, but we test anyway. */
if (start_size > malloc_absolute_max_size) {
return NULL;
}
-
- if (!zone) {
- zone = create_scalable_zone(start_size, flags | malloc_debug_flags);
- }
-
- if (enable_pgm(flags)) {
- malloc_zone_t *pgm_zone = pgm_create_zone(zone);
- MALLOC_LOCK();
- malloc_zone_register_while_locked(pgm_zone, false);
- malloc_zone_register_while_locked(zone, false);
- MALLOC_UNLOCK();
- return pgm_zone;
- }
-
+ zone = create_scalable_zone(start_size, flags | malloc_debug_flags);
malloc_zone_register(zone);
+
+#if CONFIG_PGM_WRAP_CUSTOM_ZONES
+ if (enable_pgm()) {
+ zone = pgm_create_zone(zone);
+ malloc_zone_register(zone);
+ }
+#endif
return zone;
}
@@ -2193,16 +1987,6 @@
malloc_zone_options_t mzo)
{
uint64_t type_id = malloc_get_tsd_type_id();
-#if MALLOC_TARGET_64BIT
- bool clear_type = false;
- if (!type_id) {
- malloc_type_descriptor_t fallback =
- malloc_callsite_fallback_type_descriptor();
- malloc_set_tsd_type_descriptor(fallback);
- type_id = fallback.type_id;
- clear_type = true;
- }
-#endif // MALLOC_TARGET_64BIT
MALLOC_TRACE(TRACE_malloc | DBG_FUNC_START, (uintptr_t)zone, size, type_id,
0);
@@ -2230,18 +2014,13 @@
MALLOC_TRACE(TRACE_malloc | DBG_FUNC_END, (uintptr_t)zone, size,
(uintptr_t)ptr, type_id);
out:
-#if MALLOC_TARGET_64BIT
- if (clear_type) {
- malloc_set_tsd_type_descriptor(MALLOC_TYPE_DESCRIPTOR_NONE);
- }
-#endif // MALLOC_TARGET_64BIT
if (os_unlikely(ptr == NULL)) {
malloc_set_errno_fast(mzo, ENOMEM);
}
return ptr;
}
-void *
+static void *
_malloc_zone_malloc(malloc_zone_t *zone, size_t size, malloc_zone_options_t mzo)
{
if (zone == default_zone && !lite_zone) {
@@ -2259,11 +2038,6 @@
return NULL;
}
- if (zone->version >= 16) {
- return zone->malloc_type_malloc(zone, size,
- malloc_callsite_fallback_type_id());
- }
-
// zone versions >= 13 set errno on failure so we can tail-call
return zone->malloc(zone, size);
}
@@ -2281,16 +2055,6 @@
size_t num_items, size_t size, malloc_zone_options_t mzo)
{
uint64_t type_id = malloc_get_tsd_type_id();
-#if MALLOC_TARGET_64BIT
- bool clear_type = false;
- if (!type_id) {
- malloc_type_descriptor_t fallback =
- malloc_callsite_fallback_type_descriptor();
- malloc_set_tsd_type_descriptor(fallback);
- type_id = fallback.type_id;
- clear_type = true;
- }
-#endif // MALLOC_TARGET_64BIT
MALLOC_TRACE(TRACE_calloc | DBG_FUNC_START, (uintptr_t)zone, num_items,
size, type_id);
@@ -2316,11 +2080,6 @@
MALLOC_TRACE(TRACE_calloc | DBG_FUNC_END, (uintptr_t)zone, num_items, size,
(uintptr_t)ptr);
-#if MALLOC_TARGET_64BIT
- if (clear_type) {
- malloc_set_tsd_type_descriptor(MALLOC_TYPE_DESCRIPTOR_NONE);
- }
-#endif // MALLOC_TARGET_64BIT
if (os_unlikely(ptr == NULL)) {
malloc_set_errno_fast(mzo, ENOMEM);
}
@@ -2328,7 +2087,7 @@
}
MALLOC_NOINLINE
-void *
+static void *
_malloc_zone_calloc(malloc_zone_t *zone, size_t num_items, size_t size,
malloc_zone_options_t mzo)
{
@@ -2342,11 +2101,6 @@
return _malloc_zone_calloc_instrumented_or_legacy(zone, num_items, size, mzo);
}
- if (zone->version >= 16) {
- return zone->malloc_type_calloc(zone, num_items, size,
- malloc_callsite_fallback_type_id());
- }
-
// zone versions >= 13 set errno on failure so we can tail-call
return zone->calloc(zone, num_items, size);
}
@@ -2359,20 +2113,10 @@
}
MALLOC_NOINLINE
-void *
+static void *
_malloc_zone_valloc(malloc_zone_t *zone, size_t size, malloc_zone_options_t mzo)
{
uint64_t type_id = malloc_get_tsd_type_id();
-#if MALLOC_TARGET_64BIT
- bool clear_type = false;
- if (!type_id) {
- malloc_type_descriptor_t fallback =
- malloc_callsite_fallback_type_descriptor();
- malloc_set_tsd_type_descriptor(fallback);
- type_id = fallback.type_id;
- clear_type = true;
- }
-#endif // MALLOC_TARGET_64BIT
MALLOC_TRACE(TRACE_valloc | DBG_FUNC_START, (uintptr_t)zone, size, type_id,
0);
@@ -2399,12 +2143,6 @@
MALLOC_TRACE(TRACE_valloc | DBG_FUNC_END, (uintptr_t)zone, size,
(uintptr_t)ptr, type_id);
out:
-#if MALLOC_TARGET_64BIT
- if (clear_type) {
- malloc_set_tsd_type_descriptor(MALLOC_TYPE_DESCRIPTOR_NONE);
- }
-#endif // MALLOC_TARGET_64BIT
-
if (os_unlikely(ptr == NULL)) {
malloc_set_errno_fast(mzo, ENOMEM);
}
@@ -2420,32 +2158,19 @@
// We have this function so code within libmalloc can call it without going
// through the (potentially interposed) dyld symbol stub
-void *
-_malloc_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size,
- malloc_type_descriptor_t type_desc)
+static void *
+_malloc_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size)
{
uint64_t type_id = malloc_get_tsd_type_id();
-#if MALLOC_TARGET_64BIT
- bool clear_type = false;
- if (!type_id) {
- // A type descriptor in the TSD takes precendence over one passed as a
- // parameter - the one in the TSD will be a real one set by e.g.
- // _malloc_type_realloc_outlined(), whereas the parameter will be a
- // callsite-derived fallback
- malloc_set_tsd_type_descriptor(type_desc);
- type_id = type_desc.type_id;
- clear_type = true;
- }
-#endif // MALLOC_TARGET_64BIT
MALLOC_TRACE(TRACE_realloc | DBG_FUNC_START, (uintptr_t)zone,
(uintptr_t)ptr, size, type_id);
- void *new_ptr = NULL;
+ void *new_ptr;
if (malloc_check_start) {
internal_check();
}
if (size > malloc_absolute_max_size) {
- goto out;
+ return NULL;
}
new_ptr = zone->realloc(zone, ptr, size);
@@ -2465,12 +2190,6 @@
MALLOC_TRACE(TRACE_realloc | DBG_FUNC_END, (uintptr_t)zone, (uintptr_t)ptr,
size, (uintptr_t)new_ptr);
-out:
-#if MALLOC_TARGET_64BIT
- if (clear_type) {
- malloc_set_tsd_type_descriptor(MALLOC_TYPE_DESCRIPTOR_NONE);
- }
-#endif // MALLOC_TARGET_64BIT
return new_ptr;
}
@@ -2478,8 +2197,7 @@
void *
malloc_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size)
{
- return _malloc_zone_realloc(zone, ptr, size,
- malloc_callsite_fallback_type_descriptor());
+ return _malloc_zone_realloc(zone, ptr, size);
}
MALLOC_NOINLINE
@@ -2526,28 +2244,16 @@
if (!ptr) {
return NULL;
} else {
- return _find_registered_zone(ptr, NULL, false);
+ return find_registered_zone(ptr, NULL, false);
}
}
MALLOC_NOINLINE
-void *
+static void *
_malloc_zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size,
- malloc_zone_options_t mzo, malloc_type_descriptor_t type_desc)
+ malloc_zone_options_t mzo)
{
uint64_t type_id = malloc_get_tsd_type_id();
-#if MALLOC_TARGET_64BIT
- bool clear_type = false;
- if (!type_id) {
- // A type descriptor in the TSD takes precendence over one passed as a
- // parameter - the one in the TSD will be a real one set by e.g.
- // _malloc_type_aligned_alloc_outlined(), whereas the parameter will
- // usually be a callsite-derived fallback
- malloc_set_tsd_type_descriptor(type_desc);
- type_id = type_desc.type_id;
- clear_type = true;
- }
-#endif // MALLOC_TARGET_64BIT
MALLOC_TRACE(TRACE_memalign | DBG_FUNC_START, (uintptr_t)zone, alignment,
size, type_id);
@@ -2570,8 +2276,7 @@
err = EINVAL;
goto out;
}
- // C11 aligned_alloc requires size to be a multiple of alignment, but
- // posix_memalign does not
+ // C11 requires size to be a multiple of alignment
if ((mzo & MZ_C11) && (size & (alignment - 1)) != 0) {
err = EINVAL;
goto out;
@@ -2596,12 +2301,6 @@
size, (uintptr_t)ptr);
out:
-#if MALLOC_TARGET_64BIT
- if (clear_type) {
- malloc_set_tsd_type_descriptor(MALLOC_TYPE_DESCRIPTOR_NONE);
- }
-#endif // MALLOC_TARGET_64BIT
-
if (os_unlikely(ptr == NULL)) {
if (mzo & MZ_POSIX) {
malloc_set_errno_fast(mzo, err);
@@ -2614,8 +2313,7 @@
void *
malloc_zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size)
{
- return _malloc_zone_memalign(zone, alignment, size, MZ_NONE,
- malloc_callsite_fallback_type_descriptor());
+ return _malloc_zone_memalign(zone, alignment, size, MZ_NONE);
}
boolean_t
@@ -2705,12 +2403,11 @@
malloc_set_zone_name(malloc_zone_t *z, const char *name)
{
// TODO: save and restore permissions generally
- bool mprotect_zone = true;
- if (mprotect_zone) {
+ if (z != initial_xzone_zone) {
mprotect(z, sizeof(malloc_zone_t), PROT_READ | PROT_WRITE);
}
if (z->zone_name) {
- malloc_zone_t *old_zone = _find_registered_zone(z->zone_name, NULL, false);
+ malloc_zone_t *old_zone = find_registered_zone(z->zone_name, NULL, false);
if (old_zone) {
malloc_zone_free(old_zone, (char *)z->zone_name);
}
@@ -2723,34 +2420,12 @@
} else {
char *name_copy = _malloc_zone_malloc(z, buflen, MZ_NONE);
if (name_copy) {
- strcpy(name_copy, name);
+ strlcpy(name_copy, name, buflen);
z->zone_name = name_copy;
}
}
-
- malloc_zone_t *wrapped_zone = get_wrapped_zone(z);
- if (wrapped_zone) {
- // <name>-<wrapper_label>-<suffix>\0 // Wrapped zone name format
- // ^ ^ ^ // 2 dashes and \0 -> +3
- const char *wrapper_label = get_wrapper_zone_label(z);
- const char *suffix = "Wrapped";
- size_t buflen = strlen(name) + strlen(wrapper_label) + strlen(suffix) + 3;
- char *wz_name = _malloc_zone_malloc(wrapped_zone, buflen, MZ_NONE);
- if (wz_name) {
- // snprintf() may allocate (not safe to use from libmalloc) and
- // _simple_sprintf()/_simple_salloc() call vm_allocate() which is
- // undesirable for such a simple API as malloc_set_zone_name()
- strcpy(wz_name, name);
- strcat(wz_name, "-");
- strcat(wz_name, wrapper_label);
- strcat(wz_name, "-");
- strcat(wz_name, suffix);
- malloc_set_zone_name(wrapped_zone, wz_name);
- malloc_zone_free(wrapped_zone, wz_name);
- }
- }
- }
- if (mprotect_zone) {
+ }
+ if (z != initial_xzone_zone) {
mprotect(z, sizeof(malloc_zone_t), PROT_READ);
}
}
@@ -2770,7 +2445,7 @@
return;
}
- zone = _find_registered_zone(ptr, &size, known_non_default);
+ zone = find_registered_zone(ptr, &size, known_non_default);
if (!zone) {
int flags = MALLOC_REPORT_DEBUG | MALLOC_REPORT_NOLOG;
if ((malloc_debug_flags & (MALLOC_ABORT_ON_CORRUPTION | MALLOC_ABORT_ON_ERROR))) {
@@ -2800,7 +2475,7 @@
aligned_alloc(size_t alignment, size_t size)
{
return _malloc_zone_memalign(default_zone, alignment, size,
- MZ_POSIX | MZ_C11, malloc_callsite_fallback_type_descriptor());
+ MZ_POSIX | MZ_C11);
}
MALLOC_NOINLINE
@@ -2810,10 +2485,9 @@
return _malloc_zone_calloc(default_zone, num_items, size, MZ_POSIX);
}
-// We have this function so code within libmalloc can call it without going
-// through the (potentially interposed) dyld symbol stub
+MALLOC_NOINLINE
void
-_free(void *ptr)
+free(void *ptr)
{
if (!ptr) {
return;
@@ -2827,6 +2501,7 @@
return;
}
+
if (zone0->try_free_default) {
zone0->try_free_default(zone0, ptr);
} else {
@@ -2834,19 +2509,13 @@
}
}
-MALLOC_NOINLINE
-void
-free(void *ptr)
-{
- return _free(ptr);
-}
-
// We have this function so code within libmalloc can call it without going
// through the (potentially interposed) dyld symbol stub
-void *
+static void *
_realloc(void *in_ptr, size_t new_size)
{
void *retval = NULL;
+ void *old_ptr;
malloc_zone_t *zone;
// SUSv3: "If size is 0 and ptr is not a null pointer, the object
@@ -2857,43 +2526,26 @@
// malloc_zone_malloc with zero size, which matches "If ptr is a null
// pointer, realloc() shall be equivalent to malloc() for the specified
// size." So we only free the original memory if the allocation succeeds.
- //
- // When in_ptr is NULL, we want to ensure that the fallback type descriptor
- // is good. We can ensure that by tail-calling from here, so that the
- // callsite information is accurate.
- //
- // We don't really care about the quality of the type descriptor
- // for the new_size == 0 allocation, so it's fine for it to always be based
- // on the callsite in this function.
- //
- // Note: the fact that we allocate from the default zone in the
- // new_size == 0 case regardless of the zone in_ptr belongs to is arguably a
- // bug.
- if (!in_ptr) {
- return _malloc_zone_malloc(default_zone, new_size, MZ_POSIX);
- } else if (new_size == 0) {
+ old_ptr = (new_size == 0) ? NULL : in_ptr;
+ if (!old_ptr) {
retval = _malloc_zone_malloc(default_zone, new_size, MZ_NONE);
} else {
- zone = _find_registered_zone(in_ptr, NULL, false);
+ zone = find_registered_zone(old_ptr, NULL, false);
if (!zone) {
int flags = MALLOC_REPORT_DEBUG | MALLOC_REPORT_NOLOG;
- const int abort_flags =
- (MALLOC_ABORT_ON_CORRUPTION | MALLOC_ABORT_ON_ERROR);
- if (malloc_debug_flags & abort_flags) {
+ if (malloc_debug_flags & (MALLOC_ABORT_ON_CORRUPTION | MALLOC_ABORT_ON_ERROR)) {
flags = MALLOC_REPORT_CRASH | MALLOC_REPORT_NOLOG;
}
- malloc_report(flags, "*** error for object %p: "
- "pointer being realloc'd was not allocated\n", in_ptr);
+ malloc_report(flags, "*** error for object %p: pointer being realloc'd was not allocated\n", in_ptr);
} else {
- retval = _malloc_zone_realloc(zone, in_ptr, new_size,
- malloc_callsite_fallback_type_descriptor());
+ retval = _malloc_zone_realloc(zone, old_ptr, new_size);
}
}
if (retval == NULL) {
malloc_set_errno_fast(MZ_POSIX, ENOMEM);
} else if (new_size == 0) {
- _free(in_ptr);
+ free(in_ptr);
}
return retval;
}
@@ -2907,24 +2559,6 @@
MALLOC_NOINLINE
void *
-reallocf(void *in_ptr, size_t new_size)
-{
- void *ptr = realloc(in_ptr, new_size);
-
- if (!ptr && in_ptr && new_size != 0) {
- // Save and restore `errno`, because `realloc` will set it to ENOMEM
- // on allocation failure, but it could be overwritten if `free` calls
- // into a library function that also modifies `errno`
- errno_t error = errno;
- free(in_ptr);
- errno = error;
- }
-
- return ptr;
-}
-
-MALLOC_NOINLINE
-void *
valloc(size_t size)
{
return _malloc_zone_valloc(default_zone, size, MZ_POSIX);
@@ -2933,7 +2567,7 @@
extern void
vfree(void *ptr)
{
- _free(ptr);
+ free(ptr);
}
size_t
@@ -2945,7 +2579,7 @@
return size;
}
- (void)_find_registered_zone(ptr, &size, false);
+ (void)find_registered_zone(ptr, &size, false);
return size;
}
@@ -2974,15 +2608,14 @@
// We have this function so code within libmalloc can call it without going
// through the (potentially interposed) dyld symbol stub
-int
+static int
_posix_memalign(void **memptr, size_t alignment, size_t size)
{
void *retval;
/* POSIX is silent on NULL == memptr !?! */
- retval = _malloc_zone_memalign(default_zone, alignment, size, MZ_NONE,
- malloc_callsite_fallback_type_descriptor());
+ retval = _malloc_zone_memalign(default_zone, alignment, size, MZ_NONE);
if (retval == NULL) {
// To avoid testing the alignment constraints redundantly, we'll rely on the
// test made in malloc_zone_memalign to vet each request. Only if that test fails
@@ -3067,107 +2700,446 @@
return reallocf(in_ptr, alloc_size);
}
+/********* malloc_type ************/
+
+#if MALLOC_TARGET_64BIT
+
+MALLOC_ALWAYS_INLINE MALLOC_INLINE
+static malloc_type_descriptor_t
+_malloc_type_outlined_set_tsd(malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = malloc_get_tsd_type_descriptor();
+
+ if (!type_id) {
+ // We need this to be non-zero so that we can use it for the recursion
+ // check below
+ type_id = MALLOC_TYPE_ID_NONZERO;
+ }
+ malloc_set_tsd_type_descriptor(
+ (malloc_type_descriptor_t){ .type_id = type_id });
+
+ return prev_type_desc;
+}
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_malloc_outlined(size_t size, malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = malloc(size);
+ } else {
+ ptr = _malloc_zone_malloc(default_zone, size, MZ_POSIX);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_calloc_outlined(size_t count, size_t size, malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = calloc(count, size);
+ } else {
+ ptr = _malloc_zone_calloc(default_zone, count, size, MZ_POSIX);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+// TODO: malloc_type_free_outlined
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_realloc_outlined(void *ptr, size_t size, malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *new_ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ new_ptr = realloc(ptr, size);
+ } else {
+ new_ptr = _realloc(ptr, size);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return new_ptr;
+}
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_aligned_alloc_outlined(size_t alignment, size_t size,
+ malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = aligned_alloc(alignment, size);
+ } else {
+ ptr = _malloc_zone_memalign(default_zone, alignment, size,
+ MZ_POSIX | MZ_C11);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+MALLOC_NOINLINE
+static int
+_malloc_type_posix_memalign_outlined(void **memptr, size_t alignment,
+ size_t size, malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ int retval;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ retval = posix_memalign(memptr, alignment, size);
+ } else {
+ retval = _posix_memalign(memptr, alignment, size);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return retval;
+}
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_zone_malloc_outlined(malloc_zone_t *zone, size_t size,
+ malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = malloc_zone_malloc(zone, size);
+ } else {
+ ptr = _malloc_zone_malloc(zone, size, MZ_NONE);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_zone_calloc_outlined(malloc_zone_t *zone, size_t count, size_t size,
+ malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = malloc_zone_calloc(zone, count, size);
+ } else {
+ ptr = _malloc_zone_calloc(zone, count, size, MZ_NONE);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+// TODO: malloc_type_zone_free_outlined
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_zone_realloc_outlined(malloc_zone_t *zone, void *ptr, size_t size,
+ malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *new_ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ new_ptr = malloc_zone_realloc(zone, ptr, size);
+ } else {
+ new_ptr = _malloc_zone_realloc(zone, ptr, size);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return new_ptr;
+}
+
+MALLOC_NOINLINE
+static void *
+_malloc_type_zone_memalign_outlined(malloc_zone_t *zone, size_t alignment,
+ size_t size, malloc_type_id_t type_id)
+{
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = malloc_zone_memalign(zone, alignment, size);
+ } else {
+ ptr = _malloc_zone_memalign(zone, alignment, size, MZ_NONE);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
void *
-_malloc_zone_malloc_with_options_np_outlined(malloc_zone_t *zone, size_t align,
- size_t size, malloc_options_np_t options)
-{
- void *ptr = NULL;
-
- if (zone == NULL || zone == default_zone) {
- zone = runtime_default_zone();
- }
-
-#if MALLOC_TARGET_64BIT
- uint64_t type_id = malloc_get_tsd_type_id();
- bool clear_type = false;
- if (!type_id) {
- malloc_type_descriptor_t fallback =
- malloc_callsite_fallback_type_descriptor();
- malloc_set_tsd_type_descriptor(fallback);
- type_id = fallback.type_id;
- clear_type = true;
- }
+malloc_type_malloc(size_t size, malloc_type_id_t type_id)
+{
+ if (os_unlikely(size > malloc_absolute_max_size)) {
+ malloc_set_errno_fast(MZ_POSIX, ENOMEM);
+ return NULL;
+ }
+
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_malloc_outlined(size, type_id);
+ }
+
+ malloc_zone_t *zone0 = malloc_zones[0];
+
+
+ if (zone0->version >= 13) {
+ return zone0->malloc(zone0, size);
+ }
+
+ return _malloc_type_malloc_outlined(size, type_id);
+}
+
+void *
+malloc_type_calloc(size_t count, size_t size, malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_calloc_outlined(count, size, type_id);
+ }
+
+ malloc_zone_t *zone0 = malloc_zones[0];
+
+ if (zone0->version >= 13) {
+ return zone0->calloc(zone0, count, size);
+ }
+
+ return _malloc_type_calloc_outlined(count, size, type_id);
+}
+
+void
+malloc_type_free(void *ptr, malloc_type_id_t type_id)
+{
+ // TODO: this is not interposition-safe - need to revist when we want to
+ // actually start using this
+ return free(ptr);
+}
+
+void *
+malloc_type_realloc(void *ptr, size_t size, malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_realloc_outlined(ptr, size, type_id);
+ }
+
+ malloc_zone_t *zone0 = malloc_zones[0];
+
+ // We're okay with dropping the type information here because
+ // malloc_slowpath should cover most of the situations we'd want to preserve
+ // it for. If we'd prefer to get more coverage we could go through
+ // _malloc_type_realloc_outlined(), at the expense of doing the TSD
+ // save/restore pointlessly sometimes.
+ return _realloc(ptr, size);
+}
+
+void *
+malloc_type_valloc(size_t size, malloc_type_id_t type_id)
+{
+ // valloc is not used often enough to warrant fastpath handling, so we'll
+ // just always pass the type information via the TSD
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = valloc(size);
+ } else {
+ ptr = _malloc_zone_valloc(default_zone, size, MZ_POSIX);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+void *
+malloc_type_aligned_alloc(size_t alignment, size_t size,
+ malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_aligned_alloc_outlined(alignment, size, type_id);
+ }
+
+
+ // Everything else takes the slower path
+ return _malloc_type_aligned_alloc_outlined(alignment, size, type_id);
+}
+
+int
+malloc_type_posix_memalign(void **memptr, size_t alignment, size_t size,
+ malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_posix_memalign_outlined(memptr, alignment, size,
+ type_id);
+ }
+
+
+ return _malloc_type_posix_memalign_outlined(memptr, alignment, size,
+ type_id);
+}
+
+void *
+malloc_type_zone_malloc(malloc_zone_t *zone, size_t size,
+ malloc_type_id_t type_id)
+{
+ if (os_unlikely(size > malloc_absolute_max_size)) {
+ malloc_set_errno_fast(MZ_POSIX, ENOMEM);
+ return NULL;
+ }
+
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_zone_malloc_outlined(zone, size, type_id);
+ }
+
+ if (zone == default_zone) {
+ zone = malloc_zones[0];
+ }
+
+
+ if (zone->version >= 13) {
+ return zone->malloc(zone, size);
+ }
+
+ return _malloc_type_zone_malloc_outlined(zone, size, type_id);
+}
+
+void *
+malloc_type_zone_calloc(malloc_zone_t *zone, size_t count, size_t size,
+ malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_zone_calloc_outlined(zone, count, size, type_id);
+ }
+
+ if (zone == default_zone) {
+ zone = malloc_zones[0];
+ }
+
+
+ if (zone->version >= 13) {
+ return zone->calloc(zone, count, size);
+ }
+
+ return _malloc_type_zone_calloc_outlined(zone, count, size, type_id);
+}
+
+void
+malloc_type_zone_free(malloc_zone_t *zone, void *ptr, malloc_type_id_t type_id)
+{
+ // TODO: this is not interposition-safe - need to revist when we want to
+ // actually start using this
+ return malloc_zone_free(zone, ptr);
+}
+
+void *
+malloc_type_zone_realloc(malloc_zone_t *zone, void *ptr, size_t size,
+ malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_zone_realloc_outlined(zone, ptr, size, type_id);
+ }
+
+ if (zone == default_zone) {
+ zone = malloc_zones[0];
+ }
+
+
+ // We're okay with dropping the type information here because
+ // malloc_slowpath should cover most of the situations we'd want to preserve
+ // it for. If we'd prefer to get more coverage we could go through
+ // _malloc_type_zone_realloc_outlined(), at the expense of doing the TSD
+ // save/restore pointlessly sometimes.
+ return _malloc_zone_realloc(zone, ptr, size);
+}
+
+void *
+malloc_type_zone_valloc(malloc_zone_t *zone, size_t size,
+ malloc_type_id_t type_id)
+{
+ // valloc is not used often enough to warrant fastpath handling, so we'll
+ // just always pass the type information via the TSD
+ malloc_type_descriptor_t prev_type_desc = _malloc_type_outlined_set_tsd(
+ type_id);
+
+ void *ptr;
+ if (malloc_interposition_compat && !prev_type_desc.type_id) {
+ // We're (potentially) interposed at the symbol level and aren't in a
+ // recursive call, so call through the external symbol
+ ptr = malloc_zone_valloc(zone, size);
+ } else {
+ ptr = _malloc_zone_valloc(zone, size, MZ_NONE);
+ }
+
+ malloc_set_tsd_type_descriptor(prev_type_desc);
+ return ptr;
+}
+
+void *
+malloc_type_zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size,
+ malloc_type_id_t type_id)
+{
+ if (os_unlikely(malloc_logger || malloc_slowpath)) {
+ return _malloc_type_zone_memalign_outlined(zone, alignment, size,
+ type_id);
+ }
+
+
+ // Everything else takes the slower path
+ return _malloc_type_zone_memalign_outlined(zone, alignment, size, type_id);
+}
+
#endif // MALLOC_TARGET_64BIT
-
- if (malloc_interposition_compat || (zone->version < 15) ||
- !zone->malloc_with_options) {
- // There's no reasonable way to have the fallback callsite type
- // descriptor work here. That's okay, as it's uncommon and SPI, so its
- // callers should be built with TMO.
- if (align) {
- ptr = malloc_zone_memalign(zone, align, size);
- if (ptr && (options & MALLOC_NP_OPTION_CLEAR)) {
- memset(ptr, 0, size);
- }
- } else if (options & MALLOC_NP_OPTION_CLEAR) {
- ptr = malloc_zone_calloc(zone, 1, size);
- } else {
- ptr = malloc_zone_malloc(zone, size);
- }
- } else {
- MALLOC_TRACE(TRACE_malloc_options | DBG_FUNC_START, (uintptr_t)zone,
- align, size, 0);
- ptr = zone->malloc_with_options(zone, align, size, options);
-
- if (os_unlikely(malloc_logger)) {
- uint32_t flags = MALLOC_LOG_TYPE_ALLOCATE | MALLOC_LOG_TYPE_HAS_ZONE;
- if (options & MALLOC_NP_OPTION_CLEAR) {
- flags |= MALLOC_LOG_TYPE_CLEARED;
- }
- malloc_logger(flags, (uintptr_t)zone, (uintptr_t)size,
- 0, (uintptr_t)ptr, 0);
- }
- if (os_unlikely(malloc_simple_stack_logging)) {
- malloc_report(MALLOC_SIMPLE_STACK_LOGGING_FLAGS,
- "malloc_with_options (%p/%llu,%llu): ", ptr,
- (unsigned long long)align, (unsigned long long)size);
- }
- MALLOC_TRACE(TRACE_malloc_options | DBG_FUNC_END,
- (uintptr_t)zone, align, size, (uintptr_t)ptr);
- }
-
-#if MALLOC_TARGET_64BIT
- if (clear_type) {
- malloc_set_tsd_type_descriptor(MALLOC_TYPE_DESCRIPTOR_NONE);
- }
-#endif
-
- return ptr;
-}
-
-void *
-malloc_zone_malloc_with_options_np(malloc_zone_t *zone, size_t align,
- size_t size, malloc_options_np_t options)
-{
- if (os_unlikely((align != 0) && (!powerof2(align) ||
- ((size & (align-1)) != 0)))) { // equivalent to (size % align != 0)
- return NULL;
- }
-
- if (os_unlikely(malloc_logger || malloc_slowpath)) {
- return _malloc_zone_malloc_with_options_np_outlined(zone, align, size,
- options);
- }
-
- if (zone == NULL || zone == default_zone) {
- zone = malloc_zones[0];
- }
-
- if (zone->version >= 16 && zone->malloc_type_malloc_with_options) {
- return zone->malloc_type_malloc_with_options(zone, align, size,
- options, malloc_callsite_fallback_type_id());
- }
-
- return _malloc_zone_malloc_with_options_np_outlined(zone, align, size,
- options);
-}
/********* Purgeable zone ************/
static void
_malloc_create_purgeable_zone(void * __unused ctx)
{
-
//
// PR_7288598: Must pass a *scalable* zone (szone) as the helper for create_purgeable_zone().
// Take care that the zone so obtained is not subject to interposing.
@@ -3212,7 +3184,7 @@
* and only search those.
*/
size_t size = 0;
- malloc_zone_t *zone = _find_registered_zone(ptr, &size, false);
+ malloc_zone_t *zone = find_registered_zone(ptr, &size, false);
/* FIXME: would really like a zone->introspect->flags->purgeable check, but haven't determined
* binary compatibility impact of changing the introspect struct yet. */
@@ -3478,8 +3450,9 @@
vm_address_t *zones_address_ref;
unsigned num_zones;
unsigned *num_zones_ref;
- reader = reader_or_in_memory_fallback(reader, task);
-
+ if (!reader) {
+ reader = _malloc_default_reader;
+ }
// printf("Read malloc_zones at address %p should be %p\n", &malloc_zones, malloc_zones);
err = reader(task, remote_malloc_zones, sizeof(void *), (void **)&zones_address_ref);
// printf("Read malloc_zones[%p]=%p\n", remote_malloc_zones, *zones_address_ref);
@@ -3638,14 +3611,6 @@
malloc_zone_t *zone = malloc_zones[index++];
zone->introspect->force_lock(zone);
}
-#if CONFIG_XZONE_MALLOC
- // All of the xzone malloc zones share some global state, and that global
- // state needs to be locked after all the zone specific state has been
- // locked, to prevent deadlocks
- if (initial_xzone_zone) {
- xzm_force_lock_global_state(initial_xzone_zone);
- }
-#endif // CONFIG_XZONE_MALLOC
if (callout) {
callout();
}
@@ -3654,11 +3619,6 @@
static void
_malloc_unlock_all(void (*callout)(void))
{
-#if CONFIG_XZONE_MALLOC
- if (initial_xzone_zone) {
- xzm_force_unlock_global_state(initial_xzone_zone);
- }
-#endif // CONFIG_XZONE_MALLOC
unsigned index = 0;
if (callout) {
callout();
@@ -3676,11 +3636,6 @@
static void
_malloc_reinit_lock_all(void (*callout)(void))
{
-#if CONFIG_XZONE_MALLOC
- if (initial_xzone_zone) {
- xzm_force_reinit_lock_global_state(initial_xzone_zone);
- }
-#endif // CONFIG_XZONE_MALLOC
unsigned index = 0;
if (callout) {
callout();
@@ -3722,7 +3677,7 @@
{
#if CONFIG_NANOZONE
if (_malloc_entropy_initialized) {
- if (initial_nano_zone) {
+ if (_malloc_engaged_nano == NANO_V2) {
nanov2_forked_zone((nanozonev2_t *)initial_nano_zone);
}
}
@@ -3827,16 +3782,6 @@
malloc_zero_policy = MALLOC_ZERO_NONE;
}
-bool
-malloc_variant_is_debug_4test(void)
-{
-#ifdef DEBUG
- return true;
-#else
- return false;
-#endif
-}
-
/***************** OBSOLETE ENTRY POINTS ********************/
#ifndef PHASE_OUT_OLD_MALLOC
@@ -3929,8 +3874,7 @@
if (0==strncmp(*e, "MallocStackLogging", 18)) {
_malloc_register_stack_logger(true);
if (msl.set_flags_from_environment) {
- // rdar://125495815 - re-fetch env, as it may have moved
- msl.set_flags_from_environment((const char **)*_NSGetEnviron());
+ msl.set_flags_from_environment(env);
}
break;
}
@@ -3952,6 +3896,7 @@
if (!dylib) {
return;
}
+ msld.dylib = dylib;
msl.handle_memory_event = _dlsym(dylib, "msl_handle_memory_event");
msl.stack_logging_locked = _dlsym(dylib, "msl_stack_logging_locked");
msl.fork_prepare = _dlsym(dylib, "msl_fork_prepare");
@@ -3962,6 +3907,13 @@
msl.set_flags_from_environment = _dlsym(dylib, "msl_set_flags_from_environment");
msl.initialize = _dlsym(dylib, "msl_initialize");
+
+ // TODO delete these ones
+ msld.get_frames_for_address = _dlsym(dylib, "msl_get_frames_for_address");
+ msld.stackid_for_vm_region = _dlsym(dylib, "msl_stackid_for_vm_region");
+ msld.get_frames_for_stackid = _dlsym(dylib, "msl_get_frames_for_stackid");
+ msld.uniquing_table_read_stack = _dlsym(dylib, "msl_uniquing_table_read_stack");
+
void (*msl_copy_msl_lite_hooks) (struct _malloc_msl_lite_hooks_s *hooksp, size_t size);
msl_copy_msl_lite_hooks = _dlsym(dylib, "msl_copy_msl_lite_hooks");
if (msl_copy_msl_lite_hooks) {
@@ -4038,6 +3990,227 @@
}
}
+//deprecated
+kern_return_t
+__mach_stack_logging_start_reading(task_t task, vm_address_t shared_memory_address, boolean_t *uses_lite_mode)
+{
+ malloc_register_stack_logger();
+ if (!msld.dylib) {
+ return KERN_FAILURE;
+ }
+ kern_return_t (*f) (task_t task, vm_address_t shared_memory_address, boolean_t *uses_lite_mode);
+ f = _dlsym(msld.dylib, "msl_start_reading");
+ if (!f) {
+ return KERN_FAILURE;
+ }
+ return f(task, shared_memory_address, uses_lite_mode);
+}
+
+
+//deprecated
+kern_return_t
+__mach_stack_logging_stop_reading(task_t task)
+{
+ malloc_register_stack_logger();
+ if (!msld.dylib) {
+ return KERN_FAILURE;
+ }
+ kern_return_t (*f) (task_t task);
+ f = _dlsym(msld.dylib, "msl_stop_reading");
+ if (!f) {
+ return KERN_FAILURE;
+ }
+ return f(task);
+}
+
+kern_return_t
+__mach_stack_logging_get_frames(task_t task,
+ mach_vm_address_t address,
+ mach_vm_address_t *stack_frames_buffer,
+ uint32_t max_stack_frames,
+ uint32_t *count)
+{
+ malloc_register_stack_logger();
+ if (!msld.get_frames_for_address) {
+ return KERN_FAILURE;
+ }
+ return msld.get_frames_for_address(task, address, stack_frames_buffer, max_stack_frames, count);
+}
+
+uint64_t
+__mach_stack_logging_stackid_for_vm_region(task_t task, mach_vm_address_t address)
+{
+ malloc_register_stack_logger();
+ if (!msld.stackid_for_vm_region) {
+ return -1ull;
+ }
+ return msld.stackid_for_vm_region(task, address);
+}
+
+//deprecated
+kern_return_t
+__mach_stack_logging_frames_for_uniqued_stack(task_t task,
+ uint64_t stack_identifier,
+ mach_vm_address_t *stack_frames_buffer,
+ uint32_t max_stack_frames,
+ uint32_t *count)
+{
+ malloc_register_stack_logger();
+ if (!msld.get_frames_for_stackid) {
+ return KERN_FAILURE;
+ }
+ return msld.get_frames_for_stackid(task, stack_identifier, stack_frames_buffer, max_stack_frames, count, NULL);
+}
+
+//deprecated
+kern_return_t
+__mach_stack_logging_get_frames_for_stackid(task_t task,
+ uint64_t stack_identifier,
+ mach_vm_address_t *stack_frames_buffer,
+ uint32_t max_stack_frames,
+ uint32_t *count,
+ bool *last_frame_is_threadid)
+{
+ malloc_register_stack_logger();
+ if (!msld.get_frames_for_stackid) {
+ return KERN_FAILURE;
+ }
+ return msld.get_frames_for_stackid(task, stack_identifier, stack_frames_buffer, max_stack_frames, count, last_frame_is_threadid);
+}
+
+//deprecated
+kern_return_t
+__mach_stack_logging_uniquing_table_read_stack(struct backtrace_uniquing_table *uniquing_table,
+ uint64_t stackid,
+ mach_vm_address_t *out_frames_buffer,
+ uint32_t *out_frames_count,
+ uint32_t max_frames)
+{
+ malloc_register_stack_logger();
+ if (!msld.uniquing_table_read_stack) {
+ return KERN_FAILURE;
+ }
+ return msld.uniquing_table_read_stack(uniquing_table, stackid, out_frames_buffer, out_frames_count, max_frames);
+}
+
+//deprecated
+kern_return_t
+__mach_stack_logging_enumerate_records(task_t task,
+ mach_vm_address_t address,
+ void enumerator(mach_stack_logging_record_t, void *),
+ void *context)
+{
+ malloc_register_stack_logger();
+ kern_return_t (*f) (task_t task,
+ mach_vm_address_t address,
+ void enumerator(mach_stack_logging_record_t, void *),
+ void *context);
+ if (!msld.dylib) {
+ return KERN_FAILURE;
+ }
+ f = _dlsym(msld.dylib, "msl_disk_stack_logs_enumerate_from_task");
+ if (!f) {
+ return KERN_FAILURE;
+ }
+ return f(task, address, enumerator, context);
+}
+
+
+//deprecated
+struct backtrace_uniquing_table *
+__mach_stack_logging_copy_uniquing_table(task_t task)
+{
+ malloc_register_stack_logger();
+ struct backtrace_uniquing_table * (*f) (task_t task);
+ if (!msld.dylib) {
+ return NULL;
+ }
+ f = _dlsym(msld.dylib, "msl_uniquing_table_copy_from_task");
+ if (!f) {
+ return NULL;
+ }
+ return f(task);
+}
+
+//deprecated
+struct backtrace_uniquing_table *
+__mach_stack_logging_uniquing_table_copy_from_serialized(void *buffer, size_t size)
+{
+ malloc_register_stack_logger();
+ struct backtrace_uniquing_table * (*f) (void *buffer, size_t size);
+ if (!msld.dylib) {
+ return NULL;
+ }
+ f = _dlsym(msld.dylib, "msl_uniquing_table_copy_from_serialized");
+ if (!f) {
+ return NULL;
+ }
+ return f(buffer, size);
+}
+
+//deprecated
+void
+__mach_stack_logging_uniquing_table_release(struct backtrace_uniquing_table *table)
+{
+ malloc_register_stack_logger();
+ if (!msld.dylib) {
+ return;
+ }
+ void (*f) (struct backtrace_uniquing_table *table);
+ f = _dlsym(msld.dylib, "msl_uniquing_table_release");
+ if (f) {
+ f(table);
+ }
+}
+
+//deprecated
+void
+__mach_stack_logging_uniquing_table_retain(struct backtrace_uniquing_table *table)
+{
+ malloc_register_stack_logger();
+ if (!msld.dylib) {
+ return;
+ }
+ void (*f) (struct backtrace_uniquing_table *table);
+ f = _dlsym(msld.dylib, "msl_uniquing_table_retain");
+ if (f) {
+ f(table);
+ }
+}
+
+//deprecated
+extern
+size_t
+__mach_stack_logging_uniquing_table_sizeof(struct backtrace_uniquing_table *table)
+{
+ malloc_register_stack_logger();
+ size_t (*f) (struct backtrace_uniquing_table *table);
+ f = _dlsym(msld.dylib, "msl_uniquing_table_retain");
+ return f(table);
+}
+
+//deprecated
+void *
+__mach_stack_logging_uniquing_table_serialize(struct backtrace_uniquing_table *table, mach_vm_size_t *size)
+{
+ malloc_register_stack_logger();
+ if (!msld.dylib) {
+ return NULL;
+ }
+ void * (*f) (struct backtrace_uniquing_table *table, mach_vm_size_t *size);
+ f = _dlsym(msld.dylib, "msl_uniquing_table_serialize");
+ if (!f) {
+ return NULL;
+ }
+ return f(table, size);
+}
+
+kern_return_t
+__mach_stack_logging_set_file_path(task_t task, char* file_path)
+{
+ return KERN_SUCCESS;
+}
+
/* WeChat references this, only god knows why. This symbol does nothing. */
int stack_logging_enable_logging = 0;