#include <string.h>
#include <malloc/malloc.h>
#include <sys/mman.h>
+#include <execinfo.h>
+#include <System/sys/csr.h>
#include <crt_externs.h>
#include <Availability.h>
#include <vproc_priv.h>
#include "ImageLoader.h"
#include "dyldLock.h"
-#include "start_glue.h"
+
+#include "../dyld3/APIs.h"
+#include "../dyld3/AllImages.h"
+#include "../dyld3/StartGlue.h"
+#include "../dyld3/Tracing.h"
+
+
+// this was in dyld_priv.h but it is no longer exported
+extern "C" {
+ const struct dyld_all_image_infos* _dyld_get_all_image_infos() __attribute__((visibility("hidden")));
+}
+
extern "C" int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
extern "C" void __cxa_finalize(const void *dso);
extern "C" void __cxa_finalize_ranges(const struct __cxa_range_t ranges[], int count);
+//
+// private interface between libSystem.dylib and dyld
+//
+extern "C" int _dyld_func_lookup(const char* dyld_func_name, void **address);
+
+
+extern bool gUseDyld3;
#ifndef LC_VERSION_MIN_MACOSX
#define LC_VERSION_MIN_MACOSX 0x24
#define LC_LOAD_UPWARD_DYLIB (0x23|LC_REQ_DYLD) /* load of dylib whose initializers run later */
#endif
+#ifndef LC_BUILD_VERSION
+ #define LC_BUILD_VERSION 0x32 /* build for platform min OS version */
+
+ /*
+ * The build_version_command contains the min OS version on which this
+ * binary was built to run for its platform. The list of known platforms and
+ * tool values following it.
+ */
+ struct build_version_command {
+ uint32_t cmd; /* LC_BUILD_VERSION */
+ uint32_t cmdsize; /* sizeof(struct build_version_command) plus */
+ /* ntools * sizeof(struct build_tool_version) */
+ uint32_t platform; /* platform */
+ uint32_t minos; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+ uint32_t sdk; /* X.Y.Z is encoded in nibbles xxxx.yy.zz */
+ uint32_t ntools; /* number of tool entries following this */
+ };
+
+ struct build_tool_version {
+ uint32_t tool; /* enum for the tool */
+ uint32_t version; /* version number of the tool */
+ };
+
+ /* Known values for the platform field above. */
+ #define PLATFORM_MACOS 1
+ #define PLATFORM_IOS 2
+ #define PLATFORM_TVOS 3
+ #define PLATFORM_WATCHOS 4
+ #define PLATFORM_BRIDGEOS 5
+
+ /* Known values for the tool field above. */
+ #define TOOL_CLANG 1
+ #define TOOL_SWIFT 2
+ #define TOOL_LD 3
+#endif
// deprecated APIs are still availble on Mac OS X, but not on iPhone OS
#if __IPHONE_OS_VERSION_MIN_REQUIRED
void NSInstallLinkEditErrorHandlers(
const NSLinkEditErrorHandlers* handlers)
{
+ if ( gUseDyld3 )
+ return dyld3::NSInstallLinkEditErrorHandlers(handlers);
+
DYLD_LOCK_THIS_BLOCK;
typedef void (*ucallback_t)(const char* symbol_name);
typedef NSModule (*mcallback_t)(NSSymbol s, NSModule old, NSModule newhandler);
NSNameOfModule(
NSModule module)
{
+ if ( gUseDyld3 )
+ return dyld3::NSNameOfModule(module);
+
DYLD_LOCK_THIS_BLOCK;
static const char* (*p)(NSModule module) = NULL;
NSLibraryNameForModule(
NSModule module)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLibraryNameForModule(module);
+
DYLD_LOCK_THIS_BLOCK;
static const char* (*p)(NSModule module) = NULL;
NSIsSymbolNameDefined(
const char* symbolName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolNameDefined(symbolName);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(const char* symbolName) = NULL;
const char* symbolName,
const char* libraryNameHint)
{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolNameDefinedWithHint(symbolName, libraryNameHint);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(const char* symbolName,
const char* libraryNameHint) = NULL;
const struct mach_header *image,
const char* symbolName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolNameDefinedInImage(image, symbolName);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(const struct mach_header *image,
const char* symbolName) = NULL;
NSLookupAndBindSymbol(
const char* symbolName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupAndBindSymbol(symbolName);
+
DYLD_LOCK_THIS_BLOCK;
static NSSymbol (*p)(const char* symbolName) = NULL;
const char* symbolName,
const char* libraryNameHint)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupAndBindSymbolWithHint(symbolName, libraryNameHint);
+
DYLD_LOCK_THIS_BLOCK;
static NSSymbol (*p)(const char* symbolName,
const char* libraryNameHint) = NULL;
NSModule module,
const char* symbolName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupSymbolInModule(module, symbolName);
+
DYLD_LOCK_THIS_BLOCK;
static NSSymbol (*p)(NSModule module, const char* symbolName) = NULL;
const char* symbolName,
uint32_t options)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLookupSymbolInImage(image, symbolName, options);
+
DYLD_LOCK_THIS_BLOCK;
- static NSSymbol (*p)(const struct mach_header *image,
+ static NSSymbol (*p)(const struct mach_header *image,
const char* symbolName,
uint32_t options) = NULL;
NSNameOfSymbol(
NSSymbol symbol)
{
+ if ( gUseDyld3 )
+ return dyld3::NSNameOfSymbol(symbol);
+
DYLD_LOCK_THIS_BLOCK;
static char * (*p)(NSSymbol symbol) = NULL;
NSAddressOfSymbol(
NSSymbol symbol)
{
+ if ( gUseDyld3 )
+ return dyld3::NSAddressOfSymbol(symbol);
+
DYLD_LOCK_THIS_BLOCK;
static void * (*p)(NSSymbol symbol) = NULL;
NSModuleForSymbol(
NSSymbol symbol)
{
+ if ( gUseDyld3 )
+ return dyld3::NSModuleForSymbol(symbol);
+
DYLD_LOCK_THIS_BLOCK;
static NSModule (*p)(NSSymbol symbol) = NULL;
NSAddLibrary(
const char* pathName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSAddLibrary(pathName);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(const char* pathName) = NULL;
NSAddLibraryWithSearching(
const char* pathName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSAddLibrary(pathName);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(const char* pathName) = NULL;
const char* image_name,
uint32_t options)
{
+ if ( gUseDyld3 )
+ return dyld3::NSAddImage(image_name, options);
+
DYLD_LOCK_THIS_BLOCK;
static const struct mach_header * (*p)(const char* image_name,
uint32_t options) = NULL;
*/
int32_t NSVersionOfLinkTimeLibrary(const char* libraryName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSVersionOfLinkTimeLibrary(libraryName);
+
// Lazily call _NSGetMachExecuteHeader() and cache result
#if __LP64__
static mach_header_64* mh = NULL;
*/
int32_t NSVersionOfRunTimeLibrary(const char* libraryName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSVersionOfRunTimeLibrary(libraryName);
+
uint32_t n = _dyld_image_count();
for(uint32_t i = 0; i < n; i++){
const mach_header* mh = _dyld_get_image_header(i);
return (-1);
}
+#if TARGET_OS_WATCH
+uint32_t dyld_get_program_sdk_watch_os_version()
+{
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_sdk_watch_os_version();
-#define PACKED_VERSION(major, minor, tiny) ((((major) & 0xffff) << 16) | (((minor) & 0xff) << 8) | ((tiny) & 0xff))
+ __block uint32_t retval = 0;
+ __block bool versionFound = false;
+ dyld3::dyld_get_image_versions((mach_header*)_NSGetMachExecuteHeader(), ^(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version) {
+ if (versionFound) return;
+ if (dyld_get_base_platform(platform) == PLATFORM_WATCHOS) {
+ versionFound = true;
+ retval = sdk_version;
+ }
+ });
-static bool getVersionLoadCommandInfo(const mach_header* mh, uint32_t* loadCommand, uint32_t* minOS, uint32_t* sdk)
-{
- const load_command* startCmds = NULL;
- if ( mh->magic == MH_MAGIC_64 )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
- else if ( mh->magic == MH_MAGIC )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header));
- else
- return false; // not a mach-o file, or wrong endianness
-
- const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
- const load_command* cmd = startCmds;
- for(uint32_t i = 0; i < mh->ncmds; ++i) {
- const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
- if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
- return 0;
- }
- const version_min_command* versCmd;
- switch ( cmd->cmd ) {
- case LC_VERSION_MIN_IPHONEOS:
- case LC_VERSION_MIN_MACOSX:
- case LC_VERSION_MIN_TVOS:
- case LC_VERSION_MIN_WATCHOS:
- versCmd = (version_min_command*)cmd;
- *loadCommand = versCmd->cmd;
- *minOS = versCmd->version;
- *sdk = versCmd->sdk;
- return true;
- }
- cmd = nextCmd;
- }
- return false;
+ return retval;
}
-#if !__WATCH_OS_VERSION_MIN_REQUIRED && !__TV_OS_VERSION_MIN_REQUIRED
-static uint32_t deriveSDKVersFromDylibs(const mach_header* mh)
+uint32_t dyld_get_program_min_watch_os_version()
{
- const load_command* startCmds = NULL;
- if ( mh->magic == MH_MAGIC_64 )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
- else if ( mh->magic == MH_MAGIC )
- startCmds = (load_command*)((char *)mh + sizeof(mach_header));
- else
- return 0; // not a mach-o file, or wrong endianness
-
- const load_command* const cmdsEnd = (load_command*)((char*)startCmds + mh->sizeofcmds);
- const dylib_command* dylibCmd;
- const load_command* cmd = startCmds;
- const char* dylibName;
- #if __IPHONE_OS_VERSION_MIN_REQUIRED
- uint32_t foundationVers = 0;
- #else
- uint32_t libSystemVers = 0;
- #endif
- for(uint32_t i = 0; i < mh->ncmds; ++i) {
- const load_command* nextCmd = (load_command*)((char *)cmd + cmd->cmdsize);
- // <rdar://problem/14381579&16050962> sanity check size of command
- if ( (cmd->cmdsize < 8) || (nextCmd > cmdsEnd) || (nextCmd < startCmds)) {
- return 0;
- }
- switch ( cmd->cmd ) {
- case LC_LOAD_DYLIB:
- case LC_LOAD_WEAK_DYLIB:
- case LC_LOAD_UPWARD_DYLIB:
- dylibCmd = (dylib_command*)cmd;
- // sanity check dylib command layout
- if ( dylibCmd->dylib.name.offset > cmd->cmdsize )
- return 0;
- dylibName = (char*)dylibCmd + dylibCmd->dylib.name.offset;
- #if __IPHONE_OS_VERSION_MIN_REQUIRED
- if ( strcmp(dylibName, "/System/Library/Frameworks/Foundation.framework/Foundation") == 0 )
- foundationVers = dylibCmd->dylib.current_version;
- #else
- if ( strcmp(dylibName, "/usr/lib/libSystem.B.dylib") == 0 )
- libSystemVers = dylibCmd->dylib.current_version;
- #endif
- break;
- }
- cmd = nextCmd;
- }
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_min_watch_os_version();
- struct DylibToOSMapping {
- uint32_t dylibVersion;
- uint32_t osVersion;
- };
-
- #if __IPHONE_OS_VERSION_MIN_REQUIRED
- static const DylibToOSMapping foundationMapping[] = {
- { PACKED_VERSION(678,24,0), 0x00020000 },
- { PACKED_VERSION(678,26,0), 0x00020100 },
- { PACKED_VERSION(678,29,0), 0x00020200 },
- { PACKED_VERSION(678,47,0), 0x00030000 },
- { PACKED_VERSION(678,51,0), 0x00030100 },
- { PACKED_VERSION(678,60,0), 0x00030200 },
- { PACKED_VERSION(751,32,0), 0x00040000 },
- { PACKED_VERSION(751,37,0), 0x00040100 },
- { PACKED_VERSION(751,49,0), 0x00040200 },
- { PACKED_VERSION(751,58,0), 0x00040300 },
- { PACKED_VERSION(881,0,0), 0x00050000 },
- { PACKED_VERSION(890,1,0), 0x00050100 },
- { PACKED_VERSION(992,0,0), 0x00060000 },
- { PACKED_VERSION(993,0,0), 0x00060100 },
- { PACKED_VERSION(1038,14,0),0x00070000 },
- { PACKED_VERSION(0,0,0), 0x00070000 }
- // We don't need to expand this table because all recent
- // binaries have LC_VERSION_MIN_ load command.
- };
+ __block uint32_t retval = 0;
+ __block bool versionFound = false;
+ dyld3::dyld_get_image_versions((mach_header*)_NSGetMachExecuteHeader(), ^(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version) {
+ if (versionFound) return;
- if ( foundationVers != 0 ) {
- uint32_t lastOsVersion = 0;
- for (const DylibToOSMapping* p=foundationMapping; ; ++p) {
- if ( p->dylibVersion == 0 )
- return p->osVersion;
- if ( foundationVers < p->dylibVersion )
- return lastOsVersion;
- lastOsVersion = p->osVersion;
- }
- }
+ if (dyld_get_base_platform(platform) == PLATFORM_WATCHOS) {
+ versionFound = true;
+ retval = min_version;
+ }
+ });
- #else
- // Note: versions are for the GM release. The last entry should
- // always be zero. At the start of the next major version,
- // a new last entry needs to be added and the previous zero
- // updated to the GM dylib version.
- static const DylibToOSMapping libSystemMapping[] = {
- { PACKED_VERSION(88,1,3), 0x000A0400 },
- { PACKED_VERSION(111,0,0), 0x000A0500 },
- { PACKED_VERSION(123,0,0), 0x000A0600 },
- { PACKED_VERSION(159,0,0), 0x000A0700 },
- { PACKED_VERSION(169,3,0), 0x000A0800 },
- { PACKED_VERSION(1197,0,0), 0x000A0900 },
- { PACKED_VERSION(0,0,0), 0x000A0900 }
- // We don't need to expand this table because all recent
- // binaries have LC_VERSION_MIN_ load command.
- };
-
- if ( libSystemVers != 0 ) {
- uint32_t lastOsVersion = 0;
- for (const DylibToOSMapping* p=libSystemMapping; ; ++p) {
- if ( p->dylibVersion == 0 )
- return p->osVersion;
- if ( libSystemVers < p->dylibVersion )
- return lastOsVersion;
- lastOsVersion = p->osVersion;
- }
- }
- #endif
- return 0;
+ return retval;
}
#endif
-
-#if __WATCH_OS_VERSION_MIN_REQUIRED
-static uint32_t watchVersToIOSVers(uint32_t vers)
+#if TARGET_OS_BRIDGE
+uint32_t dyld_get_program_sdk_bridge_os_version()
{
- return vers + 0x00070000;
-}
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_sdk_bridge_os_version();
-uint32_t dyld_get_program_sdk_watch_os_version()
-{
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
+ __block uint32_t retval = 0;
+ __block bool versionFound = false;
+ dyld3::dyld_get_image_versions((mach_header*)_NSGetMachExecuteHeader(), ^(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version) {
+ if (versionFound) return;
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- if ( loadCommand == LC_VERSION_MIN_WATCHOS )
- return sdk;
- }
- return 0;
+ if (dyld_get_base_platform(platform) == PLATFORM_BRIDGEOS) {
+ versionFound = true;
+ retval = sdk_version;
+ }
+ });
+
+ return retval;
}
-uint32_t dyld_get_program_min_watch_os_version()
+uint32_t dyld_get_program_min_bridge_os_version()
{
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_min_bridge_os_version();
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- if ( loadCommand == LC_VERSION_MIN_WATCHOS )
- return minOS; // return raw minOS (not mapped to iOS version)
- }
- return 0;
-}
+ __block uint32_t retval = 0;
+ __block bool versionFound = false;
+ dyld3::dyld_get_image_versions((mach_header*)_NSGetMachExecuteHeader(), ^(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version) {
+ if (versionFound) return;
+ if (dyld_get_base_platform(platform) == PLATFORM_BRIDGEOS) {
+ versionFound = true;
+ retval = min_version;
+ }
+ });
+
+ return retval;
+}
#endif
/*
*/
uint32_t dyld_get_sdk_version(const mach_header* mh)
{
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- switch (loadCommand) {
-#if __WATCH_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_WATCHOS:
- // new binary. sdk version looks like "2.0" but API wants "9.0"
- return watchVersToIOSVers(sdk);
- case LC_VERSION_MIN_IPHONEOS:
- // old binary. sdk matches API semantics so can return directly.
- return sdk;
-#elif __TV_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_TVOS:
- case LC_VERSION_MIN_IPHONEOS:
- return sdk;
-#elif __IPHONE_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_IPHONEOS:
- if ( sdk != 0 ) // old binaries might not have SDK set
- return sdk;
- break;
-#else
- case LC_VERSION_MIN_MACOSX:
- if ( sdk != 0 ) // old binaries might not have SDK set
- return sdk;
- break;
-#endif
- }
- }
-
-#if __WATCH_OS_VERSION_MIN_REQUIRED ||__TV_OS_VERSION_MIN_REQUIRED
- // All WatchOS and tv OS binaries should have version load command.
- return 0;
-#else
- // MacOSX and iOS have old binaries without version load commmand.
- return deriveSDKVersFromDylibs(mh);
-#endif
+ return dyld3::dyld_get_sdk_version(mh);
}
uint32_t dyld_get_program_sdk_version()
{
- return dyld_get_sdk_version((mach_header*)_NSGetMachExecuteHeader());
+ return dyld3::dyld_get_sdk_version((mach_header*)_NSGetMachExecuteHeader());
}
uint32_t dyld_get_min_os_version(const struct mach_header* mh)
{
- uint32_t loadCommand;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &loadCommand, &minOS, &sdk) ) {
- switch (loadCommand) {
-#if __WATCH_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_WATCHOS:
- // new binary. OS version looks like "2.0" but API wants "9.0"
- return watchVersToIOSVers(minOS);
- case LC_VERSION_MIN_IPHONEOS:
- // old binary. OS matches API semantics so can return directly.
- return minOS;
-#elif __TV_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_TVOS:
- case LC_VERSION_MIN_IPHONEOS:
- return minOS;
-#elif __IPHONE_OS_VERSION_MIN_REQUIRED
- case LC_VERSION_MIN_IPHONEOS:
- return minOS;
-#else
- case LC_VERSION_MIN_MACOSX:
- return minOS;
-#endif
- }
- }
- return 0;
+ return dyld3::dyld_get_min_os_version(mh);
}
uint32_t dyld_get_program_min_os_version()
{
- return dyld_get_min_os_version((mach_header*)_NSGetMachExecuteHeader());
+ return dyld3::dyld_get_min_os_version((mach_header*)_NSGetMachExecuteHeader());
}
bool _dyld_get_image_uuid(const struct mach_header* mh, uuid_t uuid)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_uuid(mh, uuid);
+
const load_command* startCmds = NULL;
if ( mh->magic == MH_MAGIC_64 )
startCmds = (load_command*)((char *)mh + sizeof(mach_header_64));
return false;
}
+dyld_platform_t dyld_get_active_platform(void) {
+ if (gUseDyld3)
+ return dyld3::dyld_get_active_platform();
+
+ // HACK
+ // Most of the new version SPIs have pure dyld3 implementations, but
+ // They cannot get to the main executable, so we implement this here
+ // and they can use this by calling ::dyld_get_active_platform() in the root namespace
+ static dyld_platform_t sActivePlatform = 0;
+ if (sActivePlatform) return sActivePlatform;
+
+ dyld3::dyld_get_image_versions((mach_header*)_NSGetMachExecuteHeader(), ^(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version) {
+ sActivePlatform = platform;
+ //FIXME assert there is only one?
+ });
+ return sActivePlatform;
+}
+
+dyld_platform_t dyld_get_base_platform(dyld_platform_t platform) {
+ return dyld3::dyld_get_base_platform(platform);
+}
+
+bool dyld_is_simulator_platform(dyld_platform_t platform) {
+ return dyld3::dyld_is_simulator_platform(platform);
+}
+
+bool dyld_sdk_at_least(const struct mach_header* mh, dyld_build_version_t version) {
+ return dyld3::dyld_sdk_at_least(mh, version);
+}
+
+bool dyld_minos_at_least(const struct mach_header* mh, dyld_build_version_t version) {
+ return dyld3::dyld_minos_at_least(mh, version);
+}
+
+bool dyld_program_sdk_at_least(dyld_build_version_t version) {
+ return dyld3::dyld_sdk_at_least((mach_header*)_NSGetMachExecuteHeader(),version);
+}
+
+bool dyld_program_minos_at_least(dyld_build_version_t version) {
+ return dyld3::dyld_minos_at_least((mach_header*)_NSGetMachExecuteHeader(), version);
+}
+
+// Function that walks through the load commands and calls the internal block for every version found
+// Intended as a fallback for very complex (and rare) version checks, or for tools that need to
+// print our everything for diagnostic reasons
+void dyld_get_image_versions(const struct mach_header* mh, void (^callback)(dyld_platform_t platform, uint32_t sdk_version, uint32_t min_version)) {
+ dyld3::dyld_get_image_versions(mh, callback);
+}
+
#if DEPRECATED_APIS_SUPPORTED
const char* pathName,
NSObjectFileImage *objectFileImage)
{
+ if ( gUseDyld3 )
+ return dyld3::NSCreateObjectFileImageFromFile(pathName, objectFileImage);
+
DYLD_LOCK_THIS_BLOCK;
static NSObjectFileImageReturnCode (*p)(const char*, NSObjectFileImage*) = NULL;
size_t size,
NSObjectFileImage *objectFileImage)
{
+ if ( gUseDyld3 )
+ return dyld3::NSCreateObjectFileImageFromMemory(address, size, objectFileImage);
+
DYLD_LOCK_THIS_BLOCK;
static NSObjectFileImageReturnCode (*p)(const void*, size_t, NSObjectFileImage*) = NULL;
NSDestroyObjectFileImage(
NSObjectFileImage objectFileImage)
{
+ if ( gUseDyld3 )
+ return dyld3::NSDestroyObjectFileImage(objectFileImage);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(NSObjectFileImage) = NULL;
const char* moduleName,
uint32_t options)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLinkModule(objectFileImage, moduleName, options);
+
DYLD_LOCK_THIS_BLOCK;
static NSModule (*p)(NSObjectFileImage, const char*, unsigned long) = NULL;
NSSymbolDefinitionCountInObjectFileImage(
NSObjectFileImage objectFileImage)
{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolDefinitionCountInObjectFileImage(objectFileImage);
+
DYLD_LOCK_THIS_BLOCK;
static uint32_t (*p)(NSObjectFileImage) = NULL;
NSObjectFileImage objectFileImage,
uint32_t ordinal)
{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolDefinitionNameInObjectFileImage(objectFileImage, ordinal);
+
DYLD_LOCK_THIS_BLOCK;
static const char* (*p)(NSObjectFileImage, uint32_t) = NULL;
NSSymbolReferenceCountInObjectFileImage(
NSObjectFileImage objectFileImage)
{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolReferenceCountInObjectFileImage(objectFileImage);
+
DYLD_LOCK_THIS_BLOCK;
static uint32_t (*p)(NSObjectFileImage) = NULL;
uint32_t ordinal,
bool *tentative_definition) /* can be NULL */
{
+ if ( gUseDyld3 )
+ return dyld3::NSSymbolReferenceNameInObjectFileImage(objectFileImage, ordinal, tentative_definition);
+
DYLD_LOCK_THIS_BLOCK;
static const char* (*p)(NSObjectFileImage, uint32_t, bool*) = NULL;
NSObjectFileImage objectFileImage,
const char* symbolName)
{
+ if ( gUseDyld3 )
+ return dyld3::NSIsSymbolDefinedInObjectFileImage(objectFileImage, symbolName);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(NSObjectFileImage, const char*) = NULL;
const char* sectionName,
unsigned long *size) /* can be NULL */
{
+ if ( gUseDyld3 )
+ return dyld3::NSGetSectionDataInObjectFileImage(objectFileImage, segmentName, sectionName, size);
+
DYLD_LOCK_THIS_BLOCK;
static void* (*p)(NSObjectFileImage, const char*, const char*, unsigned long*) = NULL;
const char* *fileName,
const char* *errorString)
{
+ if ( gUseDyld3 )
+ return dyld3::NSLinkEditError(c, errorNumber, fileName, errorString);
+
DYLD_LOCK_THIS_BLOCK;
static void (*p)(NSLinkEditErrors *c,
int *errorNumber,
NSModule module,
uint32_t options)
{
+ if ( gUseDyld3 )
+ return dyld3::NSUnLinkModule(module, options);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(NSModule module, uint32_t options) = NULL;
char *buf,
uint32_t *bufsize)
{
+ if ( gUseDyld3 )
+ return dyld3::_NSGetExecutablePath(buf, bufsize);
+
DYLD_NO_LOCK_THIS_BLOCK;
static int (*p)(char *buf, uint32_t *bufsize) = NULL;
_dyld_register_func_for_add_image(
void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_register_func_for_add_image(func);
+
DYLD_LOCK_THIS_BLOCK;
typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
static void (*p)(callback_t func) = NULL;
_dyld_register_func_for_remove_image(
void (*func)(const struct mach_header *mh, intptr_t vmaddr_slide))
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_register_func_for_remove_image(func);
+
DYLD_LOCK_THIS_BLOCK;
typedef void (*callback_t)(const struct mach_header *mh, intptr_t vmaddr_slide);
static void (*p)(callback_t func) = NULL;
p(module, objc_module, size);
}
-/*
- * _dyld_bind_objc_module() is passed a pointer to something in an (__OBJC,
- * __module) section and causes the module that is associated with that address
- * to be bound.
- */
-void
-_dyld_bind_objc_module(const void* objc_module)
-{
- DYLD_LOCK_THIS_BLOCK;
- static void (*p)(const void *objc_module) = NULL;
-
- if(p == NULL)
- _dyld_func_lookup("__dyld_bind_objc_module", (void**)&p);
- p(objc_module);
-}
#endif
#if DEPRECATED_APIS_SUPPORTED
uint32_t
_dyld_image_count(void)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_image_count();
+
DYLD_NO_LOCK_THIS_BLOCK;
static uint32_t (*p)(void) = NULL;
const struct mach_header *
_dyld_get_image_header(uint32_t image_index)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_header(image_index);
+
DYLD_NO_LOCK_THIS_BLOCK;
static struct mach_header * (*p)(uint32_t image_index) = NULL;
intptr_t
_dyld_get_image_vmaddr_slide(uint32_t image_index)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_vmaddr_slide(image_index);
+
DYLD_NO_LOCK_THIS_BLOCK;
static unsigned long (*p)(uint32_t image_index) = NULL;
const char*
_dyld_get_image_name(uint32_t image_index)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_name(image_index);
+
DYLD_NO_LOCK_THIS_BLOCK;
static const char* (*p)(uint32_t image_index) = NULL;
// SPI in Mac OS X 10.6
intptr_t _dyld_get_image_slide(const struct mach_header* mh)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_slide(mh);
+
DYLD_NO_LOCK_THIS_BLOCK;
static intptr_t (*p)(const struct mach_header*) = NULL;
}
+#if DEPRECATED_APIS_SUPPORTED
bool
_dyld_image_containing_address(const void* address)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_image_containing_address(address);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(const void*) = NULL;
_dyld_get_image_header_containing_address(
const void* address)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_image_header_containing_address(address);
+
DYLD_LOCK_THIS_BLOCK;
static const struct mach_header * (*p)(const void*) = NULL;
return p(address);
}
-
-#if DEPRECATED_APIS_SUPPORTED
bool _dyld_launched_prebound(void)
{
DYLD_LOCK_THIS_BLOCK;
static bool isLaunchdOwned()
{
- int64_t val = 0;
- (*swapProc)(NULL, VPROC_GSK_IS_MANAGED, NULL, &val);
- return ( val != 0 );
+ static bool checked = false;
+ static bool result = false;
+ if ( !checked ) {
+ checked = true;
+ int64_t val = 0;
+ (*swapProc)(NULL, VPROC_GSK_IS_MANAGED, NULL, &val);
+ result = ( val != 0 );
+ }
+ return result;
}
-#if DYLD_SHARED_CACHE_SUPPORT
static void shared_cache_missing()
{
// leave until dyld's that might call this are rare
{
// leave until dyld's that might call this are rare
}
-#endif // DYLD_SHARED_CACHE_SUPPORT
// the table passed to dyld containing thread helpers
static dyld::LibSystemHelpers sHelpers = { 13, &dyldGlobalLockAcquire, &dyldGlobalLockRelease,
&getPerThreadBufferFor_dlerror, &malloc, &free, &__cxa_atexit,
- #if DYLD_SHARED_CACHE_SUPPORT
&shared_cache_missing, &shared_cache_out_of_date,
- #else
- NULL, NULL,
- #endif
NULL, NULL,
&pthread_key_create, &pthread_setspecific,
&malloc_size,
&vm_allocate,
&mmap,
&__cxa_finalize_ranges
- };
+ };
//
// and call dyld, registering the helper functions.
//
extern "C" void tlv_initializer();
-extern "C" void _dyld_initializer();
void _dyld_initializer()
{
void (*p)(dyld::LibSystemHelpers*);
- _dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
- if(p != NULL)
- p(&sHelpers);
-
+ if ( gUseDyld3 ) {
+ dyld3::gAllImages.applyInitialImages();
+ }
+ else {
+ _dyld_func_lookup("__dyld_register_thread_helpers", (void**)&p);
+ if(p != NULL)
+ p(&sHelpers);
+ }
+
tlv_initializer();
}
char* dlerror()
{
+ if ( gUseDyld3 )
+ return dyld3::dlerror();
+
DYLD_LOCK_THIS_BLOCK;
static char* (*p)() = NULL;
int dladdr(const void* addr, Dl_info* info)
{
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLADDR, (uint64_t)addr, 0, 0);
+ int result = 0;
+ if ( gUseDyld3 )
+ return dyld3::dladdr(addr, info);
+
DYLD_LOCK_THIS_BLOCK;
static int (*p)(const void* , Dl_info*) = NULL;
if(p == NULL)
_dyld_func_lookup("__dyld_dladdr", (void**)&p);
- return(p(addr, info));
+ result = p(addr, info);
+ timer.setData4(result);
+ timer.setData5(info != NULL ? info->dli_fbase : 0);
+ timer.setData6(info != NULL ? info->dli_saddr : 0);
+ return result;
}
int dlclose(void* handle)
{
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLCLOSE, (uint64_t)handle, 0, 0);
+ int result = 0;
+ if ( gUseDyld3 )
+ return dyld3::dlclose(handle);
+
DYLD_LOCK_THIS_BLOCK;
static int (*p)(void* handle) = NULL;
if(p == NULL)
_dyld_func_lookup("__dyld_dlclose", (void**)&p);
- return(p(handle));
+ result = p(handle);
+ return result;
}
void* dlopen(const char* path, int mode)
-{
- // dlopen is special. locking is done inside dyld to allow initializer to run without lock
- DYLD_NO_LOCK_THIS_BLOCK;
-
- static void* (*p)(const char* path, int) = NULL;
+{
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLOPEN, path, mode, 0);
+ void* result = nullptr;
+
+ if ( gUseDyld3 ) {
+ result = dyld3::dlopen_internal(path, mode, __builtin_return_address(0));
+ return result;
+ }
+
+ // dlopen is special. locking is done inside dyld to allow initializer to run without lock
+ DYLD_NO_LOCK_THIS_BLOCK;
+
+ static void* (*p)(const char* path, int, void*) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlopen_internal", (void**)&p);
+ result = p(path, mode, __builtin_return_address(0));
+ // use asm block to prevent tail call optimization
+ // this is needed because dlopen uses __builtin_return_address() and depends on this glue being in the frame chain
+ // <rdar://problem/5313172 dlopen() looks too far up stack, can cause crash>
+ __asm__ volatile("");
+ timer.setData4(result);
+
+#if TARGET_OS_OSX
+ // HACK for iOSMac bringup rdar://40945421
+ if ( result == nullptr && dyld_get_active_platform() == PLATFORM_IOSMAC && csr_check(CSR_ALLOW_APPLE_INTERNAL) == 0) {
+ if (hasPerThreadBufferFor_dlerror()) {
+ // first char of buffer is flag whether string (starting at second char) is valid
+ char* buffer = getPerThreadBufferFor_dlerror(2);
+
+ if ( buffer[0] != '\0' && (strstr(&buffer[1], "macOS dylib cannot be loaded into iOSMac process")
+ || strstr(&buffer[1], "mach-o, but not built for iOSMac")) ) {
+ // if valid buffer and contains an iOSMac issue
+ fprintf(stderr, "dyld: iOSMac ERROR: process attempted to dlopen() dylib with macOS dependency: \n");
+ fprintf(stderr, "\tdlerror: %s\n", &buffer[1]);
+ fprintf(stderr, "\tBacktrace:\n");
+
+ void* stackPointers[128];
+ int stackPointersCnt = backtrace(stackPointers, 128);
+ char** symbolicatedStack = backtrace_symbols(stackPointers, stackPointersCnt);
+ for (int32_t i = 0; i < stackPointersCnt; ++i) {
+ fprintf(stderr, "\t\t%s\n", symbolicatedStack[i]);
+ }
+ free(symbolicatedStack);
+ }
+ }
+ }
+#endif
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlopen", (void**)&p);
- void* result = p(path, mode);
- // use asm block to prevent tail call optimization
- // this is needed because dlopen uses __builtin_return_address() and depends on this glue being in the frame chain
- // <rdar://problem/5313172 dlopen() looks too far up stack, can cause crash>
- __asm__ volatile("");
-
return result;
}
bool dlopen_preflight(const char* path)
{
- DYLD_LOCK_THIS_BLOCK;
- static bool (*p)(const char* path) = NULL;
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLOPEN_PREFLIGHT, path, 0, 0);
+ bool result = false;
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlopen_preflight", (void**)&p);
- return(p(path));
+ if ( gUseDyld3 ) {
+ result = dyld3::dlopen_preflight_internal(path);
+ return result;
+ }
+
+ DYLD_LOCK_THIS_BLOCK;
+ static bool (*p)(const char* path, void* callerAddress) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlopen_preflight_internal", (void**)&p);
+ result = p(path, __builtin_return_address(0));
+ timer.setData4(result);
+ return result;
}
void* dlsym(void* handle, const char* symbol)
{
- DYLD_LOCK_THIS_BLOCK;
- static void* (*p)(void* handle, const char* symbol) = NULL;
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLSYM, handle, symbol, 0);
+ void* result = nullptr;
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlsym", (void**)&p);
- return(p(handle, symbol));
-}
+ if ( gUseDyld3 ) {
+ result = dyld3::dlsym_internal(handle, symbol, __builtin_return_address(0));
+ return result;
+ }
+
+ DYLD_LOCK_THIS_BLOCK;
+ static void* (*p)(void* handle, const char* symbol, void *callerAddress) = NULL;
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_dlsym_internal", (void**)&p);
+ result = p(handle, symbol, __builtin_return_address(0));
+ timer.setData4(result);
+ return result;
+}
const struct dyld_all_image_infos* _dyld_get_all_image_infos()
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_all_image_infos();
+
DYLD_NO_LOCK_THIS_BLOCK;
static struct dyld_all_image_infos* (*p)() = NULL;
#if SUPPORT_ZERO_COST_EXCEPTIONS
bool _dyld_find_unwind_sections(void* addr, dyld_unwind_sections* info)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_find_unwind_sections(addr, info);
+
DYLD_NO_LOCK_THIS_BLOCK;
static void* (*p)(void*, dyld_unwind_sections*) = NULL;
const char* dyld_image_path_containing_address(const void* addr)
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_image_path_containing_address(addr);
+
DYLD_NO_LOCK_THIS_BLOCK;
static const char* (*p)(const void*) = NULL;
const struct mach_header* dyld_image_header_containing_address(const void* addr)
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_image_header_containing_address(addr);
+
DYLD_NO_LOCK_THIS_BLOCK;
static const mach_header* (*p)(const void*) = NULL;
bool dyld_shared_cache_some_image_overridden()
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_some_image_overridden();
+
DYLD_NO_LOCK_THIS_BLOCK;
static bool (*p)() = NULL;
bool _dyld_get_shared_cache_uuid(uuid_t uuid)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_shared_cache_uuid(uuid);
+
DYLD_NO_LOCK_THIS_BLOCK;
static bool (*p)(uuid_t) = NULL;
const void* _dyld_get_shared_cache_range(size_t* length)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_get_shared_cache_range(length);
+
DYLD_NO_LOCK_THIS_BLOCK;
static const void* (*p)(size_t*) = NULL;
return p(length);
}
+void _dyld_images_for_addresses(unsigned count, const void* addresses[], struct dyld_image_uuid_offset infos[])
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_images_for_addresses(count, addresses, infos);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const void (*p)(unsigned, const void*[], struct dyld_image_uuid_offset[]) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_images_for_addresses", (void**)&p);
+ return p(count, addresses, infos);
+}
+
+void _dyld_register_for_image_loads(void (*func)(const mach_header* mh, const char* path, bool unloadable))
+{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_register_for_image_loads(func);
+
+ DYLD_NO_LOCK_THIS_BLOCK;
+ static const void (*p)(void (*)(const mach_header* mh, const char* path, bool unloadable)) = NULL;
+
+ if(p == NULL)
+ _dyld_func_lookup("__dyld_register_for_image_loads", (void**)&p);
+ return p(func);
+}
bool dyld_process_is_restricted()
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_process_is_restricted();
+
DYLD_NO_LOCK_THIS_BLOCK;
static bool (*p)() = NULL;
return p();
}
-#if DYLD_SHARED_CACHE_SUPPORT
const char* dyld_shared_cache_file_path()
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_file_path();
+
DYLD_NO_LOCK_THIS_BLOCK;
static const char* (*p)() = NULL;
_dyld_func_lookup("__dyld_shared_cache_file_path", (void**)&p);
return p();
}
-#endif
void dyld_dynamic_interpose(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count)
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_dynamic_interpose(mh, array, count);
+
DYLD_LOCK_THIS_BLOCK;
static void (*p)(const struct mach_header* mh, const struct dyld_interpose_tuple array[], size_t count) = NULL;
// SPI called __fork
void _dyld_fork_child()
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_fork_child();
+
DYLD_NO_LOCK_THIS_BLOCK;
static void (*p)() = NULL;
if ( ::stat(path, &statbuf) == -1 )
return NULL;
- if ( statbuf.st_size < length )
+ if ( (size_t)statbuf.st_size < length )
return NULL;
int cache_fd = ::open(path, O_RDONLY);
int dyld_shared_cache_find_iterate_text(const uuid_t cacheUuid, const char* extraSearchDirs[], void (^callback)(const dyld_shared_cache_dylib_text_info* info))
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_find_iterate_text(cacheUuid, extraSearchDirs, callback);
+
const dyld_cache_header* cacheHeader = NULL;
bool needToUnmap = true;
// get info from dyld about this process, to see if requested cache is already mapped into this process
const dyld_all_image_infos* allInfo = _dyld_get_all_image_infos();
- if ( (allInfo != NULL) && (memcmp(allInfo->sharedCacheUUID, cacheUuid, 16) == 0) ) {
+ if ( (allInfo != NULL) && (allInfo->sharedCacheBaseAddress != 0) && (memcmp(allInfo->sharedCacheUUID, cacheUuid, 16) == 0) ) {
// requested cache is already mapped, just re-use it
- cacheHeader = (dyld_cache_header*)(SHARED_REGION_BASE + allInfo->sharedCacheSlide);
+ cacheHeader = (dyld_cache_header*)(allInfo->sharedCacheBaseAddress);
needToUnmap = false;
}
else {
}
// walk imageText table and call callback for each entry
+ const dyld_cache_mapping_info* mappings = (dyld_cache_mapping_info*)((char*)cacheHeader + cacheHeader->mappingOffset);
+ const uint64_t cacheUnslidBaseAddress = mappings[0].address;
const dyld_cache_image_text_info* imagesText = (dyld_cache_image_text_info*)((char*)cacheHeader + cacheHeader->imagesTextOffset);
const dyld_cache_image_text_info* imagesTextEnd = &imagesText[cacheHeader->imagesTextCount];
for (const dyld_cache_image_text_info* p=imagesText; p < imagesTextEnd; ++p) {
dyld_shared_cache_dylib_text_info dylibTextInfo;
- dylibTextInfo.version = 1;
+ dylibTextInfo.version = 2;
dylibTextInfo.loadAddressUnslid = p->loadAddress;
dylibTextInfo.textSegmentSize = p->textSegmentSize;
dylibTextInfo.path = (char*)cacheHeader + p->pathOffset;
::memcpy(dylibTextInfo.dylibUuid, p->uuid, 16);
+ dylibTextInfo.textSegmentOffset = p->loadAddress - cacheUnslidBaseAddress;
callback(&dylibTextInfo);
}
int dyld_shared_cache_iterate_text(const uuid_t cacheUuid, void (^callback)(const dyld_shared_cache_dylib_text_info* info))
{
+ if ( gUseDyld3 )
+ return dyld3::dyld_shared_cache_iterate_text(cacheUuid, callback);
+
const char* extraSearchDirs[] = { NULL };
return dyld_shared_cache_find_iterate_text(cacheUuid, extraSearchDirs, callback);
}
bool _dyld_is_memory_immutable(const void* addr, size_t length)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_is_memory_immutable(addr, length);
+
DYLD_NO_LOCK_THIS_BLOCK;
static bool (*p)(const void*, size_t) = NULL;
_dyld_objc_notify_init init,
_dyld_objc_notify_unmapped unmapped)
{
+ if ( gUseDyld3 )
+ return dyld3::_dyld_objc_notify_register(mapped, init, unmapped);
+
DYLD_LOCK_THIS_BLOCK;
static bool (*p)(_dyld_objc_notify_mapped, _dyld_objc_notify_init, _dyld_objc_notify_unmapped) = NULL;
-
-
projects / apple / dyld.git / blobdiff