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      1 // Copyright (c) 2012, Google Inc.
      2 // All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions are
      6 // met:
      7 //
      8 //     * Redistributions of source code must retain the above copyright
      9 // notice, this list of conditions and the following disclaimer.
     10 //     * Redistributions in binary form must reproduce the above
     11 // copyright notice, this list of conditions and the following disclaimer
     12 // in the documentation and/or other materials provided with the
     13 // distribution.
     14 //     * Neither the name of Google Inc. nor the names of its
     15 // contributors may be used to endorse or promote products derived from
     16 // this software without specific prior written permission.
     17 //
     18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 
     30 #include "common/mac/arch_utilities.h"
     31 
     32 #include <mach-o/arch.h>
     33 #include <stdio.h>
     34 #include <string.h>
     35 
     36 #ifndef CPU_TYPE_ARM
     37 #define CPU_TYPE_ARM (static_cast<cpu_type_t>(12))
     38 #endif  // CPU_TYPE_ARM
     39 
     40 #ifndef CPU_SUBTYPE_ARM_V7
     41 #define CPU_SUBTYPE_ARM_V7 (static_cast<cpu_subtype_t>(9))
     42 #endif  // CPU_SUBTYPE_ARM_V7
     43 
     44 #ifndef CPU_SUBTYPE_ARM_V7S
     45 #define CPU_SUBTYPE_ARM_V7S (static_cast<cpu_subtype_t>(11))
     46 #endif  // CPU_SUBTYPE_ARM_V7S
     47 
     48 #ifndef CPU_TYPE_ARM64
     49 #define CPU_TYPE_ARM64 (static_cast<cpu_type_t>(16777228))
     50 #endif  // CPU_TYPE_ARM64
     51 
     52 #ifndef CPU_SUBTYPE_ARM64_ALL
     53 #define CPU_SUBTYPE_ARM64_ALL (static_cast<cpu_type_t>(0))
     54 #endif  // CPU_SUBTYPE_ARM64_ALL
     55 
     56 namespace {
     57 
     58 const NXArchInfo* ArchInfo_arm64() {
     59   NXArchInfo* arm64 = new NXArchInfo;
     60   *arm64 = *NXGetArchInfoFromCpuType(CPU_TYPE_ARM,
     61                                      CPU_SUBTYPE_ARM_V7);
     62   arm64->name = "arm64";
     63   arm64->cputype = CPU_TYPE_ARM64;
     64   arm64->cpusubtype = CPU_SUBTYPE_ARM64_ALL;
     65   arm64->description = "arm 64";
     66   return arm64;
     67 }
     68 
     69 const NXArchInfo* ArchInfo_armv7s() {
     70   NXArchInfo* armv7s = new NXArchInfo;
     71   *armv7s = *NXGetArchInfoFromCpuType(CPU_TYPE_ARM,
     72                                       CPU_SUBTYPE_ARM_V7);
     73   armv7s->name = "armv7s";
     74   armv7s->cpusubtype = CPU_SUBTYPE_ARM_V7S;
     75   armv7s->description = "arm v7s";
     76   return armv7s;
     77 }
     78 
     79 }  // namespace
     80 
     81 namespace google_breakpad {
     82 
     83 const NXArchInfo* BreakpadGetArchInfoFromName(const char* arch_name) {
     84   // TODO: Remove this when the OS knows about arm64.
     85   if (!strcmp("arm64", arch_name))
     86     return BreakpadGetArchInfoFromCpuType(CPU_TYPE_ARM64,
     87                                           CPU_SUBTYPE_ARM64_ALL);
     88 
     89   // TODO: Remove this when the OS knows about armv7s.
     90   if (!strcmp("armv7s", arch_name))
     91     return BreakpadGetArchInfoFromCpuType(CPU_TYPE_ARM, CPU_SUBTYPE_ARM_V7S);
     92 
     93   return NXGetArchInfoFromName(arch_name);
     94 }
     95 
     96 const NXArchInfo* BreakpadGetArchInfoFromCpuType(cpu_type_t cpu_type,
     97                                                  cpu_subtype_t cpu_subtype) {
     98   // TODO: Remove this when the OS knows about arm64.
     99   if (cpu_type == CPU_TYPE_ARM64 && cpu_subtype == CPU_SUBTYPE_ARM64_ALL) {
    100     static const NXArchInfo* arm64 = ArchInfo_arm64();
    101     return arm64;
    102   }
    103 
    104   // TODO: Remove this when the OS knows about armv7s.
    105   if (cpu_type == CPU_TYPE_ARM && cpu_subtype == CPU_SUBTYPE_ARM_V7S) {
    106     static const NXArchInfo* armv7s = ArchInfo_armv7s();
    107     return armv7s;
    108   }
    109 
    110   return NXGetArchInfoFromCpuType(cpu_type, cpu_subtype);
    111 }
    112 
    113 }  // namespace google_breakpad
    114