firebase log level

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSCodeMapping.h

@@ -0,0 +1,34 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <Foundation/Foundation.h>
+
+typedef enum {
+  FIRCLSCodeMappingSourceUnknown,
+  FIRCLSCodeMappingSourceBuild,
+  FIRCLSCodeSourceCache,
+  FIRCLSCodeSourceSpotlight
+} FIRCLSCodeMappingSource;
+
+@interface FIRCLSCodeMapping : NSObject
+
++ (instancetype)mappingWithURL:(NSURL*)URL;
+
+- (instancetype)initWithURL:(NSURL*)URL;
+
+@property(nonatomic, copy, readonly) NSURL* URL;
+@property(nonatomic, assign) FIRCLSCodeMappingSource source;
+@property(nonatomic, copy, readonly) NSString* sourceName;
+
+@end

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSCodeMapping.m

@@ -0,0 +1,40 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSCodeMapping.h"
+
+@interface FIRCLSCodeMapping () {
+  FIRCLSCodeMappingSource _source;
+}
+
+@end
+
+@implementation FIRCLSCodeMapping
+
++ (instancetype)mappingWithURL:(NSURL *)URL {
+  return [[self alloc] initWithURL:URL];
+}
+
+- (instancetype)initWithURL:(NSURL *)URL {
+  self = [super init];
+  if (!self) {
+    return nil;
+  }
+
+  _URL = [URL copy];
+
+  return self;
+}
+
+@end

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachO.h

@@ -0,0 +1,117 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <mach-o/arch.h>
+#include <mach-o/loader.h>
+#include <sys/types.h>
+
+#include <CoreFoundation/CoreFoundation.h>
+
+struct FIRCLSMachOFile {
+  int fd;
+  size_t mappedSize;
+  void* mappedFile;
+};
+typedef struct FIRCLSMachOFile* FIRCLSMachOFileRef;
+
+struct FIRCLSMachOSlice {
+  const void* startAddress;
+  cpu_type_t cputype;
+  cpu_subtype_t cpusubtype;
+};
+typedef struct FIRCLSMachOSlice* FIRCLSMachOSliceRef;
+
+typedef struct {
+  uint32_t major;
+  uint32_t minor;
+  uint32_t bugfix;
+} FIRCLSMachOVersion;
+
+typedef struct {
+  uint64_t addr;
+  uint64_t size;
+  uint32_t offset;
+} FIRCLSMachOSection;
+
+typedef struct {
+  char segname[16];
+  uint64_t vmaddr;
+  uint64_t vmsize;
+} FIRCLSMachOSegmentCommand;
+
+typedef void (^FIRCLSMachOSliceIterator)(FIRCLSMachOSliceRef slice);
+typedef void (^FIRCLSMachOLoadCommandIterator)(uint32_t type,
+                                               uint32_t size,
+                                               const struct load_command* cmd);
+typedef void (*FIRCLSMachOLoadCommandIteratorFunc)(uint32_t type,
+                                                   uint32_t size,
+                                                   const struct load_command* cmd,
+                                                   void* context);
+
+__BEGIN_DECLS
+
+bool FIRCLSMachOFileInitWithPath(FIRCLSMachOFileRef file, const char* path);
+bool FIRCLSMachOFileInitWithCurrent(FIRCLSMachOFileRef file);
+void FIRCLSMachOFileDestroy(FIRCLSMachOFileRef file);
+void FIRCLSMachOFileEnumerateSlices(FIRCLSMachOFileRef file, FIRCLSMachOSliceIterator block);
+struct FIRCLSMachOSlice FIRCLSMachOFileSliceWithArchitectureName(FIRCLSMachOFileRef file,
+                                                                 const char* name);
+
+void FIRCLSMachOEnumerateSlicesAtAddress(void* executableData, FIRCLSMachOSliceIterator block);
+void FIRCLSMachOSliceEnumerateLoadCommands(FIRCLSMachOSliceRef slice,
+                                           FIRCLSMachOLoadCommandIterator block);
+void FIRCLSMachOSliceEnumerateLoadCommands_f(FIRCLSMachOSliceRef slice,
+                                             void* context,
+                                             FIRCLSMachOLoadCommandIteratorFunc function);
+struct FIRCLSMachOSlice FIRCLSMachOSliceGetCurrent(void);
+struct FIRCLSMachOSlice FIRCLSMachOSliceWithHeader(void* machHeader);
+
+const char* FIRCLSMachOSliceGetExecutablePath(FIRCLSMachOSliceRef slice);
+const char* FIRCLSMachOSliceGetArchitectureName(FIRCLSMachOSliceRef slice);
+bool FIRCLSMachOSliceIs64Bit(FIRCLSMachOSliceRef slice);
+bool FIRCLSMachOSliceGetSectionByName(FIRCLSMachOSliceRef slice,
+                                      const char* segName,
+                                      const char* sectionName,
+                                      const void** ptr);
+bool FIRCLSMachOSliceInitSectionByName(FIRCLSMachOSliceRef slice,
+                                       const char* segName,
+                                       const char* sectionName,
+                                       FIRCLSMachOSection* section);
+void FIRCLSMachOSliceGetUnwindInformation(FIRCLSMachOSliceRef slice,
+                                          const void** ehFrame,
+                                          const void** unwindInfo);
+
+// load-command-specific calls for convenience
+
+// returns a pointer to the 16-byte UUID
+uint8_t const* FIRCLSMachOGetUUID(const struct load_command* cmd);
+const char* FIRCLSMachOGetDylibPath(const struct load_command* cmd);
+
+// return true if the header indicates the binary is encrypted
+bool FIRCLSMachOGetEncrypted(const struct load_command* cmd);
+
+// SDK minimums
+FIRCLSMachOVersion FIRCLSMachOGetMinimumOSVersion(const struct load_command* cmd);
+FIRCLSMachOVersion FIRCLSMachOGetLinkedSDKVersion(const struct load_command* cmd);
+
+// Helpers
+FIRCLSMachOSegmentCommand FIRCLSMachOGetSegmentCommand(const struct load_command* cmd);
+
+#ifdef __OBJC__
+NSString* FIRCLSMachONormalizeUUID(CFUUIDBytes* uuidBytes);
+NSString* FIRCLSMachOFormatVersion(FIRCLSMachOVersion* version);
+#endif
+__END_DECLS

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachO.m

@@ -0,0 +1,560 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachO.h"
+#include "Crashlytics/Crashlytics/Helpers/FIRCLSDefines.h"
+
+#include <Foundation/Foundation.h>
+
+#include <mach-o/dyld.h>
+#include <mach-o/fat.h>
+#include <mach-o/getsect.h>
+#include <mach-o/ldsyms.h>
+#include <mach-o/utils.h>
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+
+#include <dlfcn.h>
+#include <fcntl.h>
+
+#include <stdio.h>
+
+#include <unistd.h>
+
+// This is defined in newer versions of iOS/macOS in usr/include/mach/machine.h
+#define CLS_CPU_SUBTYPE_ARM64E ((cpu_subtype_t)2)
+
+static void FIRCLSMachOHeaderValues(FIRCLSMachOSliceRef slice,
+                                    const struct load_command** cmds,
+                                    uint32_t* cmdCount);
+static bool FIRCLSMachOSliceIsValid(FIRCLSMachOSliceRef slice);
+
+bool FIRCLSMachOFileInitWithPath(FIRCLSMachOFileRef file, const char* path) {
+  if (!file || !path) {
+    return false;
+  }
+
+  file->fd = 0;
+  file->mappedFile = NULL;
+  file->mappedSize = 0;
+
+  file->fd = open(path, O_RDONLY);
+  if (file->fd < 0) {
+    // unable to open mach-o file
+    return false;
+  }
+
+  NSError* attributesError;
+  NSString* objCPath = [NSString stringWithCString:path encoding:NSUTF8StringEncoding];
+  NSDictionary* fileAttributes =
+      [[NSFileManager defaultManager] attributesOfItemAtPath:objCPath error:&attributesError];
+  if (attributesError != nil) {
+    close(file->fd);
+    return false;
+  }
+  NSNumber* fileSizeNumber = [fileAttributes objectForKey:NSFileSize];
+  long long currentFileSize = [fileSizeNumber longLongValue];
+  NSFileAttributeType fileType = [fileAttributes objectForKey:NSFileType];
+
+  // We need some minimum size for this to even be a possible mach-o file.  I believe
+  // its probably quite a bit bigger than this, but this at least covers something.
+  // We also need it to be a regular file.
+  file->mappedSize = (size_t)currentFileSize;
+  if (currentFileSize < 16 || ![fileType isEqualToString:NSFileTypeRegular]) {
+    close(file->fd);
+    return false;
+  }
+
+  // Map the file to memory. MAP_SHARED can potentially reduce the amount of actual private
+  // memory needed to do this mapping. Also, be sure to check for the correct failure result.
+  file->mappedFile = mmap(0, file->mappedSize, PROT_READ, MAP_FILE | MAP_SHARED, file->fd, 0);
+  if (!file->mappedFile || (file->mappedFile == MAP_FAILED)) {
+    close(file->fd);
+    return false;
+  }
+
+  return true;
+}
+
+bool FIRCLSMachOFileInitWithCurrent(FIRCLSMachOFileRef file) {
+  struct FIRCLSMachOSlice slice = FIRCLSMachOSliceGetCurrent();
+
+  const char* imagePath = FIRCLSMachOSliceGetExecutablePath(&slice);
+
+  return FIRCLSMachOFileInitWithPath(file, imagePath);
+}
+
+void FIRCLSMachOFileDestroy(FIRCLSMachOFileRef file) {
+  if (!file) {
+    return;
+  }
+
+  if (file->mappedFile && file->mappedSize > 0) {
+    munmap(file->mappedFile, file->mappedSize);
+  }
+
+  close(file->fd);
+}
+
+void FIRCLSMachOFileEnumerateSlices(FIRCLSMachOFileRef file, FIRCLSMachOSliceIterator block) {
+  FIRCLSMachOEnumerateSlicesAtAddress(file->mappedFile, block);
+}
+
+void FIRCLSMachOEnumerateSlicesAtAddress(void* executableData, FIRCLSMachOSliceIterator block) {
+  // check the magic value, to determine if we have a fat header or not
+  uint32_t magicValue;
+  uint32_t archCount;
+  const struct fat_arch* fatArch;
+  struct FIRCLSMachOSlice slice;
+
+  memset(&slice, 0, sizeof(struct FIRCLSMachOSlice));
+
+  magicValue = ((struct fat_header*)executableData)->magic;
+  if ((magicValue != FAT_MAGIC) && (magicValue != FAT_CIGAM)) {
+    slice.startAddress = executableData;
+
+    // use this to fill in the values
+    FIRCLSMachOHeaderValues(&slice, NULL, NULL);
+
+    block(&slice);
+
+    return;
+  }
+
+  archCount = OSSwapBigToHostInt32(((struct fat_header*)executableData)->nfat_arch);
+  fatArch = executableData + sizeof(struct fat_header);
+
+  for (uint32_t i = 0; i < archCount; ++i) {
+    slice.cputype = OSSwapBigToHostInt32(fatArch->cputype);
+    slice.cpusubtype = OSSwapBigToHostInt32(fatArch->cpusubtype);
+    slice.startAddress = executableData + OSSwapBigToHostInt32(fatArch->offset);
+
+    block(&slice);
+
+    // advance to the next fat_arch structure
+    fatArch = (struct fat_arch*)((uintptr_t)fatArch + sizeof(struct fat_arch));
+  }
+}
+
+struct FIRCLSMachOSlice FIRCLSMachOFileSliceWithArchitectureName(FIRCLSMachOFileRef file,
+                                                                 const char* name) {
+  __block struct FIRCLSMachOSlice value;
+
+  memset(&value, 0, sizeof(struct FIRCLSMachOSlice));
+
+  FIRCLSMachOFileEnumerateSlices(file, ^(FIRCLSMachOSliceRef slice) {
+    if (strcmp(FIRCLSMachOSliceGetArchitectureName(slice), name) == 0) {
+      value = *slice;
+    }
+  });
+
+  return value;
+}
+
+static void FIRCLSMachOHeaderValues(FIRCLSMachOSliceRef slice,
+                                    const struct load_command** cmds,
+                                    uint32_t* cmdCount) {
+  const struct mach_header* header32 = (const struct mach_header*)slice->startAddress;
+  const struct mach_header_64* header64 = (const struct mach_header_64*)slice->startAddress;
+  uint32_t commandCount;
+  const void* commandsAddress;
+
+  if (cmds) {
+    *cmds = NULL;
+  }
+
+  if (cmdCount) {
+    *cmdCount = 0;
+  }
+
+  if (!slice->startAddress) {
+    return;
+  }
+
+  // the 32 and 64 bit versions have an identical structures, so this will work
+  switch (header32->magic) {
+    case MH_MAGIC:  // 32-bit
+    case MH_CIGAM:
+      slice->cputype = header32->cputype;
+      slice->cpusubtype = header32->cpusubtype;
+      commandCount = header32->ncmds;
+      commandsAddress = slice->startAddress + sizeof(struct mach_header);
+      break;
+    case MH_MAGIC_64:  // 64-bit
+    case MH_CIGAM_64:
+      slice->cputype = header64->cputype;
+      slice->cpusubtype = header64->cpusubtype;
+      commandCount = header64->ncmds;
+      commandsAddress = slice->startAddress + sizeof(struct mach_header_64);
+      break;
+    default:
+      // not a valid header
+      return;
+  }
+
+  // assign everything back by reference
+  if (cmds) {
+    *cmds = commandsAddress;
+  }
+
+  if (cmdCount) {
+    *cmdCount = commandCount;
+  }
+}
+
+static bool FIRCLSMachOSliceIsValid(FIRCLSMachOSliceRef slice) {
+  if (!slice) {
+    return false;
+  }
+
+  if (!slice->startAddress) {
+    return false;
+  }
+
+  return true;
+}
+
+void FIRCLSMachOSliceEnumerateLoadCommands_f(FIRCLSMachOSliceRef slice,
+                                             void* context,
+                                             FIRCLSMachOLoadCommandIteratorFunc function) {
+  const struct load_command* cmd;
+  uint32_t cmdCount;
+
+  if (!FIRCLSMachOSliceIsValid(slice)) {
+    return;
+  }
+
+  FIRCLSMachOHeaderValues(slice, &cmd, &cmdCount);
+
+  for (uint32_t i = 0; cmd != NULL && i < cmdCount; ++i) {
+    function(cmd->cmd, cmd->cmdsize, cmd, context);
+
+    cmd = (struct load_command*)((uintptr_t)cmd + cmd->cmdsize);
+  }
+}
+
+void FIRCLSMachOSliceEnumerateLoadCommands(FIRCLSMachOSliceRef slice,
+                                           FIRCLSMachOLoadCommandIterator block) {
+  const struct load_command* cmd;
+  uint32_t cmdCount;
+
+  if (!block) {
+    return;
+  }
+
+  if (!FIRCLSMachOSliceIsValid(slice)) {
+    return;
+  }
+
+  FIRCLSMachOHeaderValues(slice, &cmd, &cmdCount);
+
+  for (uint32_t i = 0; cmd != NULL && i < cmdCount; ++i) {
+    block(cmd->cmd, cmd->cmdsize, cmd);
+
+    cmd = (struct load_command*)((uintptr_t)cmd + cmd->cmdsize);
+  }
+}
+
+struct FIRCLSMachOSlice FIRCLSMachOSliceGetCurrent(void) {
+  struct FIRCLSMachOSlice slice;
+  void* executableSymbol;
+  Dl_info dlinfo;
+
+#if !CLS_TARGET_OS_VISION
+  const NXArchInfo* archInfo;
+  archInfo = NXGetLocalArchInfo();
+
+  if (archInfo) {
+    slice.cputype = archInfo->cputype;
+    slice.cpusubtype = archInfo->cpusubtype;
+  }
+#else
+  cpu_type_t cputype;
+  cpu_subtype_t cpusubtype;
+  const char* archname = macho_arch_name_for_mach_header(NULL);
+  bool hasArchInfo = macho_cpu_type_for_arch_name(archname, &cputype, &cpusubtype);
+  if (hasArchInfo) {
+    slice.cputype = cputype;
+    slice.cpusubtype = cpusubtype;
+  }
+#endif
+
+  slice.startAddress = NULL;
+
+  // This call can fail when Exported Symbols File in Build Settings is missing the symbol value
+  // defined as _MH_EXECUTE_SYM (if you look in the header the underscored MH_EXECUTE_SYM define is
+  // there)
+  executableSymbol = dlsym(RTLD_MAIN_ONLY, MH_EXECUTE_SYM);
+
+  // get the address of the main function
+  if (dladdr(executableSymbol, &dlinfo) != 0) {
+    slice.startAddress = dlinfo.dli_fbase;
+  }
+
+  return slice;
+}
+
+struct FIRCLSMachOSlice FIRCLSMachOSliceWithHeader(void* machHeader) {
+  struct FIRCLSMachOSlice slice;
+
+  slice.startAddress = machHeader;
+
+  return slice;
+}
+
+const char* FIRCLSMachOSliceGetExecutablePath(FIRCLSMachOSliceRef slice) {
+  Dl_info info;
+
+  if (!FIRCLSMachOSliceIsValid(slice)) {
+    return NULL;
+  }
+
+  // use dladdr here to look up the information we need for a binary image
+  if (dladdr(slice->startAddress, &info) == 0) {
+    return NULL;
+  }
+
+  return info.dli_fname;
+}
+
+const char* FIRCLSMachOSliceGetArchitectureName(FIRCLSMachOSliceRef slice) {
+  // there are some special cases here for types not handled by earlier OSes
+  if (slice->cputype == CPU_TYPE_ARM && slice->cpusubtype == CPU_SUBTYPE_ARM_V7S) {
+    return "armv7s";
+  }
+
+  if (slice->cputype == (CPU_TYPE_ARM | CPU_ARCH_ABI64)) {
+    if (slice->cpusubtype == CLS_CPU_SUBTYPE_ARM64E) {
+      return "arm64e";
+    } else if (slice->cpusubtype == CPU_SUBTYPE_ARM64_ALL) {
+      return "arm64";
+    }
+  }
+
+  if (slice->cputype == (CPU_TYPE_ARM) && slice->cpusubtype == CPU_SUBTYPE_ARM_V7K) {
+    return "armv7k";
+  }
+
+#if !CLS_TARGET_OS_VISION
+  const NXArchInfo* archInfo;
+
+  archInfo = NXGetArchInfoFromCpuType(slice->cputype, slice->cpusubtype);
+  if (!archInfo) {
+    return "unknown";
+  }
+
+  return archInfo->name;
+#else
+  const char* archname = macho_arch_name_for_mach_header(slice->startAddress);
+
+  if (!archname) {
+    return "unknown";
+  }
+  return archname;
+#endif
+}
+
+bool FIRCLSMachOSliceIs64Bit(FIRCLSMachOSliceRef slice) {
+  // I'm pretty sure this is sufficient...
+  return (slice->cputype & CPU_ARCH_ABI64) == CPU_ARCH_ABI64;
+}
+
+// deprecated
+bool FIRCLSMachOSliceGetSectionByName(FIRCLSMachOSliceRef slice,
+                                      const char* segName,
+                                      const char* sectionName,
+                                      const void** ptr) {
+  if (!ptr) {
+    return false;
+  }
+
+  *ptr = NULL;  // make sure this is set before returning
+
+  FIRCLSMachOSection section;
+
+  if (!FIRCLSMachOSliceInitSectionByName(slice, segName, sectionName, &section)) {
+    return false;
+  }
+
+  // WARNING: this calculation isn't correct, but is here to maintain backwards
+  // compatibility for now with callers of FIRCLSMachOSliceGetSectionByName. All new
+  // users should be calling FIRCLSMachOSliceInitSectionByName
+  *ptr = (const void*)((uintptr_t)slice->startAddress + section.offset);
+
+  return true;
+}
+
+bool FIRCLSMachOSliceInitSectionByName(FIRCLSMachOSliceRef slice,
+                                       const char* segName,
+                                       const char* sectionName,
+                                       FIRCLSMachOSection* section) {
+  if (!FIRCLSMachOSliceIsValid(slice)) {
+    return false;
+  }
+
+  if (!section) {
+    return false;
+  }
+
+  memset(section, 0, sizeof(FIRCLSMachOSection));
+
+// Deprecated code for vision OS, entire function is not used anywhere
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+  if (FIRCLSMachOSliceIs64Bit(slice)) {
+    const struct section_64* sect =
+        getsectbynamefromheader_64(slice->startAddress, segName, sectionName);
+    if (!sect) {
+      return false;
+    }
+
+    section->addr = sect->addr;
+    section->size = sect->size;
+    section->offset = sect->offset;
+  } else {
+    const struct section* sect = getsectbynamefromheader(slice->startAddress, segName, sectionName);
+    if (!sect) {
+      return false;
+    }
+
+    section->addr = sect->addr;
+    section->size = sect->size;
+    section->offset = sect->offset;
+  }
+#pragma clang diagnostic pop
+  return true;
+}
+
+// TODO: this is left in-place just to ensure that old crashltyics + new fabric are still compatible
+// with each other. As a happy bonus, if that situation does come up, this will also fix the bug
+// that was preventing compact unwind on arm64 + iOS 9 from working correctly.
+void FIRCLSMachOSliceGetUnwindInformation(FIRCLSMachOSliceRef slice,
+                                          const void** ehFrame,
+                                          const void** unwindInfo) {
+  if (!unwindInfo && !ehFrame) {
+    return;
+  }
+
+  bool found = false;
+  intptr_t slide = 0;
+
+  // This is inefficient, but we have no other safe way to do this correctly. Modifying the
+  // FIRCLSMachOSlice structure is tempting, but could introduce weird binary-compatibility issues
+  // with version mis-matches.
+  for (uint32_t i = 0; i < _dyld_image_count(); ++i) {
+    const struct mach_header* header = _dyld_get_image_header(i);
+
+    if (header == slice->startAddress) {
+      found = true;
+      slide = _dyld_get_image_vmaddr_slide(i);
+      break;
+    }
+  }
+
+  // make sure we were able to find a matching value
+  if (!found) {
+    return;
+  }
+
+  FIRCLSMachOSection section;
+
+  if (unwindInfo) {
+    if (FIRCLSMachOSliceInitSectionByName(slice, SEG_TEXT, "__unwind_info", &section)) {
+      *unwindInfo = (void*)(section.addr + slide);
+    }
+  }
+
+  if (ehFrame) {
+    if (FIRCLSMachOSliceInitSectionByName(slice, SEG_TEXT, "__eh_frame", &section)) {
+      *ehFrame = (void*)(section.addr + slide);
+    }
+  }
+}
+
+uint8_t const* FIRCLSMachOGetUUID(const struct load_command* cmd) {
+  return ((const struct uuid_command*)cmd)->uuid;
+}
+
+const char* FIRCLSMachOGetDylibPath(const struct load_command* cmd) {
+  const struct dylib_command* dylibcmd = (const struct dylib_command*)cmd;
+
+  return (const char*)((uintptr_t)cmd + dylibcmd->dylib.name.offset);
+}
+
+bool FIRCLSMachOGetEncrypted(const struct load_command* cmd) {
+  return ((struct encryption_info_command*)cmd)->cryptid > 0;
+}
+
+static FIRCLSMachOVersion FIRCLSMachOVersionFromEncoded(uint32_t encoded) {
+  FIRCLSMachOVersion version;
+
+  version.major = (encoded & 0xffff0000) >> 16;
+  version.minor = (encoded & 0x0000ff00) >> 8;
+  version.bugfix = encoded & 0x000000ff;
+
+  return version;
+}
+
+FIRCLSMachOVersion FIRCLSMachOGetMinimumOSVersion(const struct load_command* cmd) {
+  return FIRCLSMachOVersionFromEncoded(((const struct version_min_command*)cmd)->version);
+}
+
+FIRCLSMachOVersion FIRCLSMachOGetLinkedSDKVersion(const struct load_command* cmd) {
+  return FIRCLSMachOVersionFromEncoded(((const struct version_min_command*)cmd)->sdk);
+}
+
+FIRCLSMachOSegmentCommand FIRCLSMachOGetSegmentCommand(const struct load_command* cmd) {
+  FIRCLSMachOSegmentCommand segmentCommand;
+
+  memset(&segmentCommand, 0, sizeof(FIRCLSMachOSegmentCommand));
+
+  if (!cmd) {
+    return segmentCommand;
+  }
+
+  if (cmd->cmd == LC_SEGMENT) {
+    struct segment_command* segCmd = (struct segment_command*)cmd;
+
+    memcpy(segmentCommand.segname, segCmd->segname, 16);
+    segmentCommand.vmaddr = segCmd->vmaddr;
+    segmentCommand.vmsize = segCmd->vmsize;
+  } else if (cmd->cmd == LC_SEGMENT_64) {
+    struct segment_command_64* segCmd = (struct segment_command_64*)cmd;
+
+    memcpy(segmentCommand.segname, segCmd->segname, 16);
+    segmentCommand.vmaddr = segCmd->vmaddr;
+    segmentCommand.vmsize = segCmd->vmsize;
+  }
+
+  return segmentCommand;
+}
+
+NSString* FIRCLSMachONormalizeUUID(CFUUIDBytes* uuidBytes) {
+  CFUUIDRef uuid = CFUUIDCreateFromUUIDBytes(kCFAllocatorDefault, *uuidBytes);
+
+  NSString* string = CFBridgingRelease(CFUUIDCreateString(kCFAllocatorDefault, uuid));
+
+  CFRelease(uuid);
+
+  return [[string stringByReplacingOccurrencesOfString:@"-" withString:@""] lowercaseString];
+}
+
+NSString* FIRCLSMachOFormatVersion(FIRCLSMachOVersion* version) {
+  if (!version) {
+    return nil;
+  }
+
+  return [NSString stringWithFormat:@"%d.%d.%d", version->major, version->minor, version->bugfix];
+}

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOBinary.h

@@ -0,0 +1,41 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <Foundation/Foundation.h>
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachO.h"
+
+@class FIRCLSMachOSlice;
+
+@interface FIRCLSMachOBinary : NSObject {
+  NSURL* _url;
+
+  struct FIRCLSMachOFile _file;
+  NSMutableArray* _slices;
+  NSString* _instanceIdentifier;
+}
+
++ (id)MachOBinaryWithPath:(NSString*)path;
+
+- (id)initWithURL:(NSURL*)url;
+
+@property(nonatomic, copy, readonly) NSURL* URL;
+@property(nonatomic, copy, readonly) NSString* path;
+@property(nonatomic, strong, readonly) NSArray* slices;
+@property(nonatomic, copy, readonly) NSString* instanceIdentifier;
+
+- (void)enumerateUUIDs:(void (^)(NSString* uuid, NSString* architecture))block;
+
+- (FIRCLSMachOSlice*)sliceForArchitecture:(NSString*)architecture;
+
+@end

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOBinary.m

@@ -0,0 +1,175 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOBinary.h"
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOSlice.h"
+
+#import <CommonCrypto/CommonHMAC.h>
+
+static void FIRCLSSafeHexToString(const uint8_t* value, size_t length, char* outputBuffer);
+static NSString* FIRCLSNSDataToNSString(NSData* data);
+static NSString* FIRCLSHashBytes(const void* bytes, size_t length);
+static NSString* FIRCLSHashNSString(NSString* value);
+
+@interface FIRCLSMachOBinary ()
+
++ (NSString*)hashNSString:(NSString*)value;
+
+@end
+
+@implementation FIRCLSMachOBinary
+
++ (id)MachOBinaryWithPath:(NSString*)path {
+  return [[self alloc] initWithURL:[NSURL fileURLWithPath:path]];
+}
+
+@synthesize slices = _slices;
+
+- (id)initWithURL:(NSURL*)url {
+  self = [super init];
+  if (self) {
+    _url = [url copy];
+
+    if (!FIRCLSMachOFileInitWithPath(&_file, [[_url path] fileSystemRepresentation])) {
+      return nil;
+    }
+
+    _slices = [NSMutableArray new];
+    FIRCLSMachOFileEnumerateSlices(&_file, ^(FIRCLSMachOSliceRef slice) {
+      FIRCLSMachOSlice* sliceObject;
+
+      sliceObject = [[FIRCLSMachOSlice alloc] initWithSlice:slice];
+
+      [self->_slices addObject:sliceObject];
+    });
+  }
+
+  return self;
+}
+
+- (void)dealloc {
+  FIRCLSMachOFileDestroy(&_file);
+}
+
+- (NSURL*)URL {
+  return _url;
+}
+
+- (NSString*)path {
+  return [_url path];
+}
+
+- (NSString*)instanceIdentifier {
+  if (_instanceIdentifier) {
+    return _instanceIdentifier;
+  }
+
+  NSMutableString* prehashedString = [NSMutableString new];
+
+  // sort the slices by architecture
+  NSArray* sortedSlices =
+      [_slices sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
+        return [[obj1 architectureName] compare:[obj2 architectureName]];
+      }];
+
+  // append them all into a big string
+  for (FIRCLSMachOSlice* slice in sortedSlices) {
+    [prehashedString appendString:[slice uuid]];
+  }
+
+  _instanceIdentifier = [FIRCLSHashNSString(prehashedString) copy];
+
+  return _instanceIdentifier;
+}
+
+- (void)enumerateUUIDs:(void (^)(NSString* uuid, NSString* architecture))block {
+  for (FIRCLSMachOSlice* slice in _slices) {
+    block([slice uuid], [slice architectureName]);
+  }
+}
+
+- (FIRCLSMachOSlice*)sliceForArchitecture:(NSString*)architecture {
+  for (FIRCLSMachOSlice* slice in [self slices]) {
+    if ([[slice architectureName] isEqualToString:architecture]) {
+      return slice;
+    }
+  }
+
+  return nil;
+}
+
++ (NSString*)hashNSString:(NSString*)value {
+  return FIRCLSHashNSString(value);
+}
+
+@end
+
+// TODO: Functions copied from the SDK.  We should figure out a way to share this.
+static void FIRCLSSafeHexToString(const uint8_t* value, size_t length, char* outputBuffer) {
+  const char hex[] = "0123456789abcdef";
+
+  if (!value) {
+    outputBuffer[0] = '\0';
+    return;
+  }
+
+  for (size_t i = 0; i < length; ++i) {
+    unsigned char c = value[i];
+    outputBuffer[i * 2] = hex[c >> 4];
+    outputBuffer[i * 2 + 1] = hex[c & 0x0F];
+  }
+
+  outputBuffer[length * 2] = '\0';  // null terminate
+}
+
+static NSString* FIRCLSNSDataToNSString(NSData* data) {
+  NSString* string;
+  char* buffer;
+  size_t size;
+  NSUInteger length;
+
+  // we need 2 hex char for every byte of data, plus one more spot for a
+  // null terminator
+  length = [data length];
+  size = (length * 2) + 1;
+  buffer = malloc(sizeof(char) * size);
+
+  if (!buffer) {
+    return nil;
+  }
+
+  FIRCLSSafeHexToString([data bytes], length, buffer);
+
+  string = [NSString stringWithUTF8String:buffer];
+
+  free(buffer);
+
+  return string;
+}
+
+static NSString* FIRCLSHashBytes(const void* bytes, size_t length) {
+  uint8_t digest[CC_SHA1_DIGEST_LENGTH] = {0};
+  CC_SHA1(bytes, (CC_LONG)length, digest);
+
+  NSData* result = [NSData dataWithBytes:digest length:CC_SHA1_DIGEST_LENGTH];
+
+  return FIRCLSNSDataToNSString(result);
+}
+
+static NSString* FIRCLSHashNSString(NSString* value) {
+  const char* s = [value cStringUsingEncoding:NSUTF8StringEncoding];
+
+  return FIRCLSHashBytes(s, strlen(s));
+}

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOSlice.h

@@ -0,0 +1,37 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <Foundation/Foundation.h>
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachO.h"
+
+@interface FIRCLSMachOSlice : NSObject {
+  struct FIRCLSMachOSlice _slice;
+
+  NSString* _uuidString;
+  NSArray* _linkedDylibs;
+  FIRCLSMachOVersion _minimumOSVersion;
+  FIRCLSMachOVersion _linkedSDKVersion;
+}
+
++ (id)runningSlice;
+
+- (id)initWithSlice:(FIRCLSMachOSliceRef)sliceRef;
+
+@property(nonatomic, copy, readonly) NSString* uuid;
+@property(nonatomic, copy, readonly) NSString* architectureName;
+@property(nonatomic, strong, readonly) NSArray* linkedDylibs;
+@property(nonatomic, assign, readonly) FIRCLSMachOVersion minimumOSVersion;
+@property(nonatomic, assign, readonly) FIRCLSMachOVersion linkedSDKVersion;
+
+@end

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOSlice.m

@@ -0,0 +1,93 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOSlice.h"
+
+#include <mach-o/loader.h>
+
+// this is defined only if __OPEN_SOURCE__ is *not* defined in the TVOS SDK's mach-o/loader.h
+// also, it has not yet made it back to the OSX SDKs, for example
+#ifndef LC_VERSION_MIN_TVOS
+#define LC_VERSION_MIN_TVOS 0x2F
+#endif
+
+@implementation FIRCLSMachOSlice
+
++ (id)runningSlice {
+  struct FIRCLSMachOSlice slice;
+
+  slice = FIRCLSMachOSliceGetCurrent();
+
+  return [[self alloc] initWithSlice:&slice];
+}
+
+@synthesize minimumOSVersion = _minimumOSVersion;
+@synthesize linkedSDKVersion = _linkedSDKVersion;
+
+- (id)initWithSlice:(FIRCLSMachOSliceRef)sliceRef {
+  self = [super init];
+  if (self) {
+    NSMutableArray* dylibs;
+
+    _slice = *sliceRef;
+
+    _minimumOSVersion.major = 0;
+    _minimumOSVersion.minor = 0;
+    _minimumOSVersion.bugfix = 0;
+
+    _linkedSDKVersion.major = 0;
+    _linkedSDKVersion.minor = 0;
+    _linkedSDKVersion.bugfix = 0;
+
+    dylibs = [NSMutableArray array];
+
+    FIRCLSMachOSliceEnumerateLoadCommands(
+        &_slice, ^(uint32_t type, uint32_t size, const struct load_command* cmd) {
+          switch (type) {
+            case LC_UUID:
+              self->_uuidString =
+                  [FIRCLSMachONormalizeUUID((CFUUIDBytes*)FIRCLSMachOGetUUID(cmd)) copy];
+              break;
+            case LC_LOAD_DYLIB:
+              [dylibs addObject:[NSString stringWithUTF8String:FIRCLSMachOGetDylibPath(cmd)]];
+              break;
+            case LC_VERSION_MIN_IPHONEOS:
+            case LC_VERSION_MIN_MACOSX:
+            case LC_VERSION_MIN_WATCHOS:
+            case LC_VERSION_MIN_TVOS:
+              self->_minimumOSVersion = FIRCLSMachOGetMinimumOSVersion(cmd);
+              self->_linkedSDKVersion = FIRCLSMachOGetLinkedSDKVersion(cmd);
+              break;
+          }
+        });
+
+    _linkedDylibs = [dylibs copy];
+  }
+
+  return self;
+}
+
+- (NSString*)architectureName {
+  return [NSString stringWithUTF8String:FIRCLSMachOSliceGetArchitectureName(&_slice)];
+}
+
+- (NSString*)uuid {
+  return _uuidString;
+}
+
+- (NSArray*)linkedDylibs {
+  return _linkedDylibs;
+}
+
+@end

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSdSYM.h

@@ -0,0 +1,38 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <Foundation/Foundation.h>
+
+@class FIRCLSMachOBinary;
+
+@interface FIRCLSdSYM : NSObject
+
+NS_ASSUME_NONNULL_BEGIN
+
++ (id)dSYMWithURL:(NSURL*)url;
+
+- (id)initWithURL:(NSURL*)url;
+
+@property(nonatomic, readonly) FIRCLSMachOBinary* binary;
+@property(nonatomic, copy, readonly, nullable) NSString* bundleIdentifier;
+@property(nonatomic, copy, readonly) NSURL* executableURL;
+@property(nonatomic, copy, readonly) NSString* executablePath;
+@property(nonatomic, copy, readonly) NSString* bundleVersion;
+@property(nonatomic, copy, readonly) NSString* shortBundleVersion;
+
+- (void)enumerateUUIDs:(void (^)(NSString* uuid, NSString* architecture))block;
+
+NS_ASSUME_NONNULL_END
+
+@end

Pods/FirebaseCrashlytics/Crashlytics/Shared/FIRCLSMachO/FIRCLSdSYM.m

@@ -0,0 +1,109 @@
+// Copyright 2019 Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSdSYM.h"
+
+#import "Crashlytics/Shared/FIRCLSMachO/FIRCLSMachOBinary.h"
+
+#define CLS_XCODE_DSYM_PREFIX (@"com.apple.xcode.dsym.")
+
+@interface FIRCLSdSYM ()
+
+@property(nonatomic, readonly) NSBundle* bundle;
+
+@end
+
+@implementation FIRCLSdSYM
+
++ (id)dSYMWithURL:(NSURL*)url {
+  return [[self alloc] initWithURL:url];
+}
+
+- (id)initWithURL:(NSURL*)url {
+  self = [super init];
+  if (self) {
+    NSDirectoryEnumerator* enumerator;
+    NSString* path;
+    NSFileManager* fileManager;
+    BOOL isDirectory;
+    BOOL fileExistsAtPath;
+    NSArray* itemsInDWARFDir;
+
+    fileManager = [NSFileManager defaultManager];
+
+    // Is there a file at this path?
+    if (![fileManager fileExistsAtPath:[url path]]) {
+      return nil;
+    }
+
+    _bundle = [NSBundle bundleWithURL:url];
+    if (!_bundle) {
+      return nil;
+    }
+
+    path = [[url path] stringByAppendingPathComponent:@"Contents/Resources/DWARF"];
+
+    // Does this path exist and is it a directory?
+    fileExistsAtPath = [fileManager fileExistsAtPath:path isDirectory:&isDirectory];
+    if (!fileExistsAtPath || !isDirectory) {
+      return nil;
+    }
+
+    enumerator = [fileManager enumeratorAtPath:path];
+    itemsInDWARFDir = [enumerator allObjects];
+    // Do we have a Contents/Resources/DWARF dir but no contents?
+    if ([itemsInDWARFDir count] == 0) {
+      return nil;
+    }
+
+    path = [path stringByAppendingPathComponent:[itemsInDWARFDir objectAtIndex:0]];
+
+    _binary = [[FIRCLSMachOBinary alloc] initWithURL:[NSURL fileURLWithPath:path]];
+  }
+
+  return self;
+}
+
+- (NSString*)bundleIdentifier {
+  NSString* identifier;
+
+  identifier = [_bundle bundleIdentifier];
+  if ([identifier hasPrefix:CLS_XCODE_DSYM_PREFIX]) {
+    return [identifier substringFromIndex:[CLS_XCODE_DSYM_PREFIX length]];
+  }
+
+  return identifier;
+}
+
+- (NSURL*)executableURL {
+  return [_binary URL];
+}
+
+- (NSString*)executablePath {
+  return [_binary path];
+}
+
+- (NSString*)bundleVersion {
+  return [[_bundle infoDictionary] objectForKey:@"CFBundleVersion"];
+}
+
+- (NSString*)shortBundleVersion {
+  return [[_bundle infoDictionary] objectForKey:@"CFBundleShortVersionString"];
+}
+
+- (void)enumerateUUIDs:(void (^)(NSString* uuid, NSString* architecture))block {
+  [_binary enumerateUUIDs:block];
+}
+
+@end