dyld-551.3.tar.gz

[apple/dyld.git] / launch-cache / MachOFileAbstraction.hpp

diff --git a/launch-cache/MachOFileAbstraction.hpp b/launch-cache/MachOFileAbstraction.hpp
index cba7f8a591a8c99254d70379c6f9c7ca29451a43..ebd298d46a876d870923ab5e6f4c0d0659b76094 100644 (file)
--- a/launch-cache/MachOFileAbstraction.hpp
+++ b/launch-cache/MachOFileAbstraction.hpp
@@ -43,6 +43,82 @@ struct uuid_command {
        #define S_16BYTE_LITERALS 0xE
 #endif
 
+#ifndef CPU_SUBTYPE_ARM_V5TEJ
+       #define CPU_SUBTYPE_ARM_V5TEJ           ((cpu_subtype_t) 7)
+#endif
+#ifndef CPU_SUBTYPE_ARM_XSCALE
+       #define CPU_SUBTYPE_ARM_XSCALE          ((cpu_subtype_t) 8)
+#endif
+#ifndef CPU_SUBTYPE_ARM_V7
+       #define CPU_SUBTYPE_ARM_V7                      ((cpu_subtype_t) 9)
+#endif
+#ifndef CPU_SUBTYPE_ARM_V7F
+       #define CPU_SUBTYPE_ARM_V7F                     ((cpu_subtype_t) 10)
+#endif
+#ifndef CPU_SUBTYPE_ARM_V7K
+       #define CPU_SUBTYPE_ARM_V7K                     ((cpu_subtype_t) 12)
+#endif
+#ifndef CPU_SUBTYPE_ARM_V7S
+       #define CPU_SUBTYPE_ARM_V7S                     ((cpu_subtype_t) 11)
+#endif
+#ifndef CPU_SUBTYPE_ARM64_ALL
+       #define CPU_SUBTYPE_ARM64_ALL           ((cpu_subtype_t) 0)
+#endif
+#ifndef CPU_TYPE_ARM64
+       #define CPU_TYPE_ARM64                          ((cpu_type_t) (CPU_TYPE_ARM | CPU_ARCH_ABI64))
+#endif
+
+#define ARM64_RELOC_UNSIGNED            0 // for pointers
+
+
+#ifndef LC_LOAD_UPWARD_DYLIB
+       #define LC_LOAD_UPWARD_DYLIB (0x23|LC_REQ_DYLD) /* load of dylib whose initializers run later */
+#endif
+
+#ifndef EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER
+       #define EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER 0x10
+#endif
+#ifndef EXPORT_SYMBOL_FLAGS_REEXPORT
+       #define EXPORT_SYMBOL_FLAGS_REEXPORT 0x08
+#endif
+
+#ifndef LC_FUNCTION_STARTS
+       #define LC_FUNCTION_STARTS 0x26
+#endif
+
+#ifndef LC_DATA_IN_CODE
+       #define LC_DATA_IN_CODE 0x29
+#endif
+
+#ifndef LC_DYLIB_CODE_SIGN_DRS
+       #define LC_DYLIB_CODE_SIGN_DRS 0x2B
+#endif
+
+#ifndef CPU_SUBTYPE_X86_64_H
+       #define CPU_SUBTYPE_X86_64_H            ((cpu_subtype_t) 8) 
+#endif
+
+
+#define DYLD_CACHE_ADJ_V2_FORMAT                               0x7F
+
+#define DYLD_CACHE_ADJ_V2_POINTER_32                   0x01
+#define DYLD_CACHE_ADJ_V2_POINTER_64                   0x02
+#define DYLD_CACHE_ADJ_V2_DELTA_32                         0x03
+#define DYLD_CACHE_ADJ_V2_DELTA_64                         0x04
+#define DYLD_CACHE_ADJ_V2_ARM64_ADRP                   0x05
+#define DYLD_CACHE_ADJ_V2_ARM64_OFF12                  0x06
+#define DYLD_CACHE_ADJ_V2_ARM64_BR26                   0x07
+#define DYLD_CACHE_ADJ_V2_ARM_MOVW_MOVT                        0x08
+#define DYLD_CACHE_ADJ_V2_ARM_BR24                             0x09
+#define DYLD_CACHE_ADJ_V2_THUMB_MOVW_MOVT              0x0A
+#define DYLD_CACHE_ADJ_V2_THUMB_BR22                   0x0B
+#define DYLD_CACHE_ADJ_V2_IMAGE_OFF_32                 0x0C
+
+#define MH_HAS_OBJC                    0x40000000
+
+#ifndef CPU_SUBTYPE_ARM64_E
+       #define CPU_SUBTYPE_ARM64_E    2
+#endif
 
 #include "FileAbstraction.hpp"
 #include "Architectures.hpp"
@@ -60,6 +136,10 @@ struct ArchPair
                        return (this->arch < other.arch);
                return (this->subtype < other.subtype);
        }
+
+       bool operator==(const ArchPair& other) const { 
+        return this->arch == other.arch  &&  this->subtype == other.subtype;
+       }
 };
 
 
@@ -738,35 +818,50 @@ public:
 
     const macho_segment_command<P>* getSegment(const char *segname) const
     {
-        const macho_load_command<P>* const cmds = (macho_load_command<P>*)((uint8_t*)this + sizeof(macho_header<P>));
-        const uint32_t cmd_count = this->ncmds();
+        const macho_load_command<P>* cmds = (macho_load_command<P>*)((uint8_t*)this + sizeof(macho_header<P>));
+        uint32_t cmd_count = this->ncmds();
         const macho_load_command<P>* cmd = cmds;
         for (uint32_t i = 0; i < cmd_count; ++i) {
             if ( cmd->cmd() == macho_segment_command<P>::CMD ) {
-                const macho_segment_command<P>* segcmd = 
-                    (macho_segment_command<P>*)cmd;
+                const macho_segment_command<P>* segcmd = (macho_segment_command<P>*)cmd;
                 if (0 == strncmp(segname, segcmd->segname(), 16)) {
                     return segcmd;
-                }
+              }
             }
-            cmd = (const macho_load_command<P>*)(((uint8_t*)cmd)+cmd->cmdsize());
+            cmd = (macho_load_command<P>*)(((uint8_t*)cmd)+cmd->cmdsize());
         }
         return NULL;
     }
 
     const macho_section<P>* getSection(const char *segname, const char *sectname) const
     {
-        const macho_segment_command<P>* const segcmd = getSegment(segname);
+       const  macho_segment_command<P>* segcmd = getSegment(segname);
         if (!segcmd) return NULL;
 
         const macho_section<P>* sectcmd = (macho_section<P>*)(segcmd+1);
-        const uint32_t section_count = segcmd->nsects();
+        uint32_t section_count = segcmd->nsects();
         for (uint32_t j = 0; j < section_count; ++j) {
             if (0 == ::strncmp(sectcmd[j].sectname(), sectname, 16)) {
                 return sectcmd+j;
             }
         }
 
+               if (strcmp(segname, "__DATA") == 0)
+                       return getSection("__DATA_CONST", sectname);
+        return NULL;
+    }
+
+    const macho_load_command<P>* getLoadCommand(int query) const
+    {
+        const macho_load_command<P>* cmds = (macho_load_command<P>*)((uint8_t*)this + sizeof(macho_header<P>));
+        uint32_t cmd_count = this->ncmds();
+        const macho_load_command<P>* cmd = cmds;
+        for (uint32_t i = 0; i < cmd_count; ++i) {
+            if ( cmd->cmd() == query ) {
+                return cmd;
+            }
+            cmd = (macho_load_command<P>*)(((uint8_t*)cmd)+cmd->cmdsize());
+        }
         return NULL;
     }
 
@@ -847,7 +942,7 @@ inline uint64_t read_uleb128(const uint8_t*& p, const uint8_t* end) {
 }
        
 
-static int64_t read_sleb128(const uint8_t*& p, const uint8_t* end)
+inline int64_t read_sleb128(const uint8_t*& p, const uint8_t* end)
 {
        int64_t result = 0;
        int bit = 0;
@@ -856,7 +951,7 @@ static int64_t read_sleb128(const uint8_t*& p, const uint8_t* end)
                if (p == end)
                        throw "malformed sleb128";
                byte = *p++;
-               result |= ((byte & 0x7f) << bit);
+               result |= (((int64_t)(byte & 0x7f)) << bit);
                bit += 7;
        } while (byte & 0x80);
        // sign extend negative numbers