Support ldid on PPC binaries.

ldid.cpp

@@ -68,11 +68,7 @@ struct fat_arch {
 struct mach_header {
  uint32_t magic;
  uint32_t cputype;
-
- // XXX: byte swapped?
- uint16_t cpusubtype;
- uint16_t caps;
-
+ uint32_t cpusubtype;
  uint32_t filetype;
  uint32_t ncmds;
  uint32_t sizeofcmds;
@@ -296,6 +292,14 @@ class Framework {
  return size_;
  }
 
+ uint32_t GetCPUType() const {
+ return Swap(mach_header_->cputype);
+ }
+
+ uint16_t GetCPUSubtype() const {
+ return Swap(mach_header_->cpusubtype) & 0xff;
+ }
+
  std::vector<struct load_command *> GetLoadCommands() {
  std::vector<struct load_command *> load_commands;
 
@@ -582,24 +586,34 @@ int main(int argc, const char *argv[]) {
  if (size == _not(size_t))
  size = framework.GetSize();
 
- switch (framework->cputype) {
- case 7: switch (framework->cpusubtype) {
+ switch (framework.GetCPUType()) {
+ case 7: switch (framework.GetCPUSubtype()) {
  case 3: arch = "i386"; break;
  default: arch = NULL; break;
  } break;
 
- case 12: switch (framework->cpusubtype) {
+ case 12: switch (framework.GetCPUSubtype()) {
  case 0: arch = "arm"; break;
  case 6: arch = "armv6"; break;
  case 9: arch = "armv7"; break;
  default: arch = NULL; break;
  } break;
 
- case 16777223: switch (framework->cpusubtype) {
+ case 18: switch (framework.GetCPUSubtype()) {
+ case 10: arch = "ppc7400"; break;
+ default: arch = NULL; break;
+ } break;
+
+ case 16777223: switch (framework.GetCPUSubtype()) {
  case 3: arch = "x86_64"; break;
  default: arch = NULL; break;
  } break;
 
+ case 16777234: switch (framework.GetCPUSubtype()) {
+ case 0: arch = "ppc64"; break;
+ default: arch = NULL; break;
+ } break;
+
  default: arch = NULL; break;
  }
  }