ld64-224.1.tar.gz

[apple/ld64.git] / src / other / dyldinfo.cpp

diff --git a/src/other/dyldinfo.cpp b/src/other/dyldinfo.cpp
index 71f13b8df469511f2da9a724f30576a5e19507c5..b43ff3fc73a71b957a0490bdc9e5b6aa115563f8 100644 (file)
--- a/src/other/dyldinfo.cpp
+++ b/src/other/dyldinfo.cpp
@@ -252,6 +252,26 @@ bool DyldInfoPrinter<arm>::validFile(const uint8_t* fileContent)
 }
 #endif
 
+#if SUPPORT_ARCH_arm64
+template <>
+bool DyldInfoPrinter<arm64>::validFile(const uint8_t* fileContent)
+{      
+       const macho_header<P>* header = (const macho_header<P>*)fileContent;
+       if ( header->magic() != MH_MAGIC_64 )
+               return false;
+       if ( header->cputype() != CPU_TYPE_ARM64 )
+               return false;
+       switch (header->filetype()) {
+               case MH_EXECUTE:
+               case MH_DYLIB:
+               case MH_BUNDLE:
+               case MH_DYLINKER:
+                       return true;
+       }
+       return false;
+}
+#endif
+
 template <typename A>
 DyldInfoPrinter<A>::DyldInfoPrinter(const uint8_t* fileContent, uint32_t fileLength, const char* path, bool printArch)
  : fHeader(NULL), fLength(fileLength), 
@@ -612,7 +632,7 @@ void DyldInfoPrinter<A>::printRebaseInfo()
                uint64_t segOffset = 0;
                uint32_t count;
                uint32_t skip;
-               int segIndex;
+               int segIndex = 0;
                pint_t segStartAddr = 0;
                const char* segName = "??";
                const char* typeName = "??";
@@ -1267,13 +1287,14 @@ void DyldInfoPrinter<A>::printExportInfo()
                        const bool reExport = (it->flags & EXPORT_SYMBOL_FLAGS_REEXPORT);
                        const bool weakDef = (it->flags & EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION);
                        const bool threadLocal = ((it->flags & EXPORT_SYMBOL_FLAGS_KIND_MASK) == EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL);
+                       const bool abs = ((it->flags & EXPORT_SYMBOL_FLAGS_KIND_MASK) == EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE);
                        const bool resolver = (it->flags & EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER);
                        if ( reExport )
                                printf("[re-export] ");
                        else
                                printf("0x%08llX  ", fBaseAddress+it->address);
                        printf("%s", it->name);
-                       if ( weakDef || threadLocal || resolver ) {
+                       if ( weakDef || threadLocal || resolver || abs ) {
                                bool needComma = false;
                                printf(" [");
                                if ( weakDef ) {
@@ -1286,6 +1307,12 @@ void DyldInfoPrinter<A>::printExportInfo()
                                        printf("per-thread");
                                        needComma = true;
                                }
+                               if ( abs ) {
+                                       if ( needComma )
+                                               printf(", ");
+                                       printf("absolute");
+                                       needComma = true;
+                               }
                                if ( resolver ) {
                                        if ( needComma ) 
                                                printf(", ");
@@ -1432,6 +1459,8 @@ void DyldInfoPrinter<A>::printExportInfoNodes()
                                                printf("[addr=0x%06llX] ", address);
                                        else if ( (flags & EXPORT_SYMBOL_FLAGS_KIND_MASK) == EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL)
                                                printf("[flags=THREAD_LOCAL addr=0x%06llX] ", address);
+                                       else if ( (flags & EXPORT_SYMBOL_FLAGS_KIND_MASK) == EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE)
+                                               printf("[flags=ABSOLUTE addr=0x%06llX] ", address);
                                        else
                                                printf("[flags=0x%llX addr=0x%06llX] ", flags, address);
                                }
@@ -1467,7 +1496,12 @@ const uint8_t* DyldInfoPrinter<A>::printSharedRegionInfoForEachULEB128Address(co
                        kindStr = "64-bit pointer";
                        break;
                case 3:
-                       kindStr = "ppc hi16";
+#if SUPPORT_ARCH_arm64
+                       if ( fHeader->cputype() == CPU_TYPE_ARM64 )
+                               kindStr = "arm64 ADRP";
+                       else
+#endif
+                               kindStr = "ppc hi16";
                        break;
                case 4:
                        kindStr = "32-bit offset to IMPORT";
@@ -1751,7 +1785,6 @@ x86::P::uint_t DyldInfoPrinter<x86>::relocBase()
 template <>
 x86_64::P::uint_t DyldInfoPrinter<x86_64>::relocBase()
 {
-       // check for split-seg
        return fFirstWritableSegment->vmaddr();
 }
 
@@ -1766,6 +1799,13 @@ arm::P::uint_t DyldInfoPrinter<arm>::relocBase()
 }
 #endif
 
+#if SUPPORT_ARCH_arm64
+template <>
+arm64::P::uint_t DyldInfoPrinter<arm64>::relocBase()
+{
+       return fFirstWritableSegment->vmaddr();
+}
+#endif
 
 template <>
 const char*    DyldInfoPrinter<ppc>::relocTypeName(uint8_t r_type)
@@ -1818,6 +1858,16 @@ const char*      DyldInfoPrinter<arm>::relocTypeName(uint8_t r_type)
 }
 #endif
 
+#if SUPPORT_ARCH_arm64 
+template <>
+const char*    DyldInfoPrinter<arm64>::relocTypeName(uint8_t r_type)
+{
+       if ( r_type == ARM64_RELOC_UNSIGNED )
+               return "pointer";
+       return "??";
+}
+#endif
+
 template <typename A>
 void DyldInfoPrinter<A>::printRelocRebaseInfo()
 {
@@ -2114,6 +2164,14 @@ static void dump(const char* path)
                                                else
                                                        throw "in universal file, arm slice does not contain arm mach-o";
                                                break;
+#endif
+#if SUPPORT_ARCH_arm64
+                                       case CPU_TYPE_ARM64:
+                                               if ( DyldInfoPrinter<arm64>::validFile(p + offset) )
+                                                       DyldInfoPrinter<arm64>::make(p + offset, size, path, (sPreferredArch == 0));
+                                               else
+                                                       throw "in universal file, arm64 slice does not contain arm mach-o";
+                                               break;
 #endif
                                        default:
                                                        throwf("in universal file, unknown architecture slice 0x%x\n", cputype);
@@ -2137,6 +2195,11 @@ static void dump(const char* path)
                else if ( DyldInfoPrinter<arm>::validFile(p) ) {
                        DyldInfoPrinter<arm>::make(p, length, path, false);
                }
+#endif
+#if SUPPORT_ARCH_arm64
+               else if ( DyldInfoPrinter<arm64>::validFile(p) ) {
+                       DyldInfoPrinter<arm64>::make(p, length, path, false);
+               }
 #endif
                else {
                        throw "not a known file type";
@@ -2187,6 +2250,10 @@ int main(int argc, const char* argv[])
                                                sPreferredArch = CPU_TYPE_I386;
                                        else if ( strcmp(arch, "x86_64") == 0 )
                                                sPreferredArch = CPU_TYPE_X86_64;
+#if SUPPORT_ARCH_arm64
+                                       else if ( strcmp(arch, "arm64") == 0 )
+                                               sPreferredArch = CPU_TYPE_ARM64;
+#endif
                                        else {
                                                if ( arch == NULL )
                                                        throw "-arch missing architecture name";