From 04802ab148864821973653ddf52f4f14f69d2589 Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Fri, 5 Nov 2010 13:26:22 -0700
Subject: [PATCH] Support ldid on PPC binaries.

---
 ldid.cpp | 32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)

diff --git a/ldid.cpp b/ldid.cpp
index 5ee0675..8700e7e 100644
--- a/ldid.cpp
+++ b/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;
                 }
             }
-- 
2.45.2