#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
#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
#define DEPRECATED_APIS_SUPPORTED 0
return (-1);
}
-
-#define PACKED_VERSION(major, minor, tiny) ((((major) & 0xffff) << 16) | (((minor) & 0xff) << 8) | ((tiny) & 0xff))
-
-
-static bool getVersionLoadCommandInfo(const mach_header* mh, uint32_t* platform, 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;
- const build_version_command* buildVersCmd;
- switch ( cmd->cmd ) {
- case LC_VERSION_MIN_IPHONEOS:
- versCmd = (version_min_command*)cmd;
- *platform = PLATFORM_IOS;
- *minOS = versCmd->version;
- *sdk = versCmd->sdk;
- return true;
- case LC_VERSION_MIN_MACOSX:
- versCmd = (version_min_command*)cmd;
- *platform = PLATFORM_MACOS;
- *minOS = versCmd->version;
- *sdk = versCmd->sdk;
- return true;
- case LC_VERSION_MIN_TVOS:
- versCmd = (version_min_command*)cmd;
- *platform = PLATFORM_TVOS;
- *minOS = versCmd->version;
- *sdk = versCmd->sdk;
- return true;
- case LC_VERSION_MIN_WATCHOS:
- versCmd = (version_min_command*)cmd;
- *platform = PLATFORM_WATCHOS;
- *minOS = versCmd->version;
- *sdk = versCmd->sdk;
- return true;
- case LC_BUILD_VERSION:
- buildVersCmd = (build_version_command*)cmd;
- *platform = buildVersCmd->platform;
- *minOS = buildVersCmd->minos;
- *sdk = buildVersCmd->sdk;
- return true;
- }
- cmd = nextCmd;
- }
- return false;
-}
-
-#if !__WATCH_OS_VERSION_MIN_REQUIRED && !__TV_OS_VERSION_MIN_REQUIRED
-static uint32_t deriveSDKVersFromDylibs(const mach_header* mh)
-{
- 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;
- }
-
- 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.
- };
-
- 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;
- }
- }
-
- #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;
-}
-#endif
-
-
-#if __WATCH_OS_VERSION_MIN_REQUIRED
-static uint32_t watchVersToIOSVers(uint32_t vers)
-{
- return vers + 0x00070000;
-}
-
+#if TARGET_OS_WATCH
uint32_t dyld_get_program_sdk_watch_os_version()
{
- if ( gUseDyld3 )
- return dyld3::dyld_get_program_sdk_watch_os_version();
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_sdk_watch_os_version();
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t platform;
- 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, &platform, &minOS, &sdk) ) {
- if ( platform == PLATFORM_WATCHOS )
- return sdk;
- }
- return 0;
+ if (dyld_get_base_platform(platform) == PLATFORM_WATCHOS) {
+ versionFound = true;
+ retval = sdk_version;
+ }
+ });
+
+ return retval;
}
uint32_t dyld_get_program_min_watch_os_version()
{
- if ( gUseDyld3 )
- return dyld3::dyld_get_program_min_watch_os_version();
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_min_watch_os_version();
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t platform;
- 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, &platform, &minOS, &sdk) ) {
- if ( platform == PLATFORM_WATCHOS )
- return minOS; // return raw minOS (not mapped to iOS version)
- }
- return 0;
-}
+ if (dyld_get_base_platform(platform) == PLATFORM_WATCHOS) {
+ versionFound = true;
+ retval = min_version;
+ }
+ });
+ return retval;
+}
#endif
-
-
#if TARGET_OS_BRIDGE
-static uint32_t bridgeVersToIOSVers(uint32_t vers)
-{
- return vers + 0x00090000;
-}
-
uint32_t dyld_get_program_sdk_bridge_os_version()
{
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t platform;
- uint32_t minOS;
- uint32_t sdk;
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_sdk_bridge_os_version();
- if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
- if ( platform == PLATFORM_BRIDGEOS )
- return sdk;
- }
- 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 = sdk_version;
+ }
+ });
+
+ return retval;
}
uint32_t dyld_get_program_min_bridge_os_version()
{
- const mach_header* mh = (mach_header*)_NSGetMachExecuteHeader();
- uint32_t platform;
- uint32_t minOS;
- uint32_t sdk;
+ if (gUseDyld3)
+ return dyld3::dyld_get_program_min_bridge_os_version();
- if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
- if ( platform == PLATFORM_BRIDGEOS )
- 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)
{
- if ( gUseDyld3 )
- return dyld3::dyld_get_sdk_version(mh);
-
- uint32_t platform;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
- switch (platform) {
-#if TARGET_OS_BRIDGE
- case PLATFORM_BRIDGEOS:
- // new binary. sdk version looks like "2.0" but API wants "11.0"
- return bridgeVersToIOSVers(sdk);
- case PLATFORM_IOS:
- // old binary. sdk matches API semantics so can return directly.
- return sdk;
-#elif __WATCH_OS_VERSION_MIN_REQUIRED
- case PLATFORM_WATCHOS:
- // new binary. sdk version looks like "2.0" but API wants "9.0"
- return watchVersToIOSVers(sdk);
- case PLATFORM_IOS:
- // old binary. sdk matches API semantics so can return directly.
- return sdk;
-#elif __TV_OS_VERSION_MIN_REQUIRED
- case PLATFORM_TVOS:
- case PLATFORM_IOS:
- return sdk;
-#elif __IPHONE_OS_VERSION_MIN_REQUIRED
- case PLATFORM_IOS:
- if ( sdk != 0 ) // old binaries might not have SDK set
- return sdk;
- break;
-#else
- case PLATFORM_MACOS:
- 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 || TARGET_OS_BRIDGE
- // 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()
{
- if ( gUseDyld3 )
- return dyld3::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)
{
- if ( gUseDyld3 )
- return dyld3::dyld_get_min_os_version(mh);
-
- uint32_t platform;
- uint32_t minOS;
- uint32_t sdk;
-
- if ( getVersionLoadCommandInfo(mh, &platform, &minOS, &sdk) ) {
- switch (platform) {
-#if TARGET_OS_BRIDGE
- case PLATFORM_BRIDGEOS:
- // new binary. sdk version looks like "2.0" but API wants "11.0"
- return bridgeVersToIOSVers(minOS);
- case PLATFORM_IOS:
- // old binary. sdk matches API semantics so can return directly.
- return minOS;
-#elif __WATCH_OS_VERSION_MIN_REQUIRED
- case PLATFORM_WATCHOS:
- // new binary. OS version looks like "2.0" but API wants "9.0"
- return watchVersToIOSVers(minOS);
- case PLATFORM_IOS:
- // old binary. OS matches API semantics so can return directly.
- return minOS;
-#elif __TV_OS_VERSION_MIN_REQUIRED
- case PLATFORM_TVOS:
- case PLATFORM_IOS:
- return minOS;
-#elif __IPHONE_OS_VERSION_MIN_REQUIRED
- case PLATFORM_IOS:
- return minOS;
-#else
- case PLATFORM_MACOS:
- return minOS;
-#endif
- }
- }
- return 0;
+ return dyld3::dyld_get_min_os_version(mh);
}
uint32_t dyld_get_program_min_os_version()
{
- if ( gUseDyld3 )
- return dyld3::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());
}
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
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;
}
static void shared_cache_missing()
&vm_allocate,
&mmap,
&__cxa_finalize_ranges
- };
+ };
//
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);
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);
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)
-{
- if ( gUseDyld3 )
- return dyld3::dlopen(path, 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)
{
- if ( gUseDyld3 )
- return dyld3::dlopen_preflight(path);
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLOPEN_PREFLIGHT, path, 0, 0);
+ bool result = false;
- DYLD_LOCK_THIS_BLOCK;
- static bool (*p)(const char* path) = NULL;
+ if ( gUseDyld3 ) {
+ result = dyld3::dlopen_preflight_internal(path);
+ return result;
+ }
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlopen_preflight", (void**)&p);
- return(p(path));
+ 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)
{
- if ( gUseDyld3 )
- return dyld3::dlsym(handle, symbol);
+ dyld3::ScopedTimer timer(DBG_DYLD_TIMING_DLSYM, handle, symbol, 0);
+ void* result = nullptr;
- DYLD_LOCK_THIS_BLOCK;
- static void* (*p)(void* handle, const char* symbol) = NULL;
+ if ( gUseDyld3 ) {
+ result = dyld3::dlsym_internal(handle, symbol, __builtin_return_address(0));
+ return result;
+ }
- if(p == NULL)
- _dyld_func_lookup("__dyld_dlsym", (void**)&p);
- return(p(handle, symbol));
+ 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()
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 ( ::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);
-
-
projects / apple / dyld.git / blobdiff