Drop 10.5 support

util/mach/mach_extensions.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // 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,
@@ skipping 23 matching lines @@
   // rejecting attempts to operate on any bits that it does not recognize. See
   // 10.9.4 xnu-2422.110.17/osfmk/mach/ipc_host.c and
   // xnu-2422.110.17/osfmk/mach/ipc_tt.c.
 
 #if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_9
   int mac_os_x_minor_version = MacOSXMinorVersion();
 #endif
 
   // See 10.6.8 xnu-1504.15.3/osfmk/mach/exception_types.h. 10.7 uses the same
   // definition as 10.6. See 10.7.5 xnu-1699.32.7/osfmk/mach/exception_types.h
-  //
-  // The 10.5 SDK actually defined EXC_MASK_ALL as including EXC_MASK_CRASH.
-  // Later SDKs removed EXC_MASK_CRASH from EXC_MASK_ALL, but placed it into a
-  // new constant, EXC_MASK_VALID. For consistent behavior, don’t include
-  // EXC_MASK_CRASH in the 10.5 EXC_MASK_ALL. Consumers that want EXC_MASK_ALL
-  // along with EXC_MASK_CRASH must use ExcMaskAll() | EXC_MASK_CRASH
-  // explicitly. 10.5 otherwise behaves identically to 10.6. See 10.5.8
-  // xnu-1228.15.4/osfmk/mach/exception_types.h.
   const exception_mask_t kExcMaskAll_10_6 =
       EXC_MASK_BAD_ACCESS | EXC_MASK_BAD_INSTRUCTION | EXC_MASK_ARITHMETIC |
       EXC_MASK_EMULATION | EXC_MASK_SOFTWARE | EXC_MASK_BREAKPOINT |
       EXC_MASK_SYSCALL | EXC_MASK_MACH_SYSCALL | EXC_MASK_RPC_ALERT |
       EXC_MASK_MACHINE;
 #if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_7
   if (mac_os_x_minor_version <= 7) {
     return kExcMaskAll_10_6;
   }
 #endif
 
   // 10.8 added EXC_MASK_RESOURCE. See 10.8.5
   // xnu-2050.48.11/osfmk/mach/exception_types.h.
   const exception_mask_t kExcMaskAll_10_8 =
       kExcMaskAll_10_6 | EXC_MASK_RESOURCE;
 #if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_8
   if (mac_os_x_minor_version <= 8) {
     return kExcMaskAll_10_8;
   }
 #endif
 
   // 10.9 added EXC_MASK_GUARD. See 10.9.4
   // xnu-2422.110.17/osfmk/mach/exception_types.h.
   const exception_mask_t kExcMaskAll_10_9 = kExcMaskAll_10_8 | EXC_MASK_GUARD;
   return kExcMaskAll_10_9;
 }
 
 }  // namespace crashpad