ld64-236.3.tar.gz

[apple/ld64.git] / src / ld / ld.hpp

diff --git a/src/ld/ld.hpp b/src/ld/ld.hpp
index 42d5aa62713136f237a5a353a501dac87343956b..95973aa1c66c06ba9716ddcbf413ff78275bb7f2 100644 (file)
--- a/src/ld/ld.hpp
+++ b/src/ld/ld.hpp
@@ -166,7 +166,8 @@ enum MacVersionMin { macVersionUnset=0, mac10_4=0x000A0400, mac10_5=0x000A0500,
                                                mac10_9=0x000A0900, mac10_Future=0x10000000 };
 enum IOSVersionMin { iOSVersionUnset=0, iOS_2_0=0x00020000, iOS_3_1=0x00030100, 
                                                iOS_4_2=0x00040200, iOS_4_3=0x00040300, iOS_5_0=0x00050000,
-                                               iOS_6_0=0x00060000, iOS_7_0=0x00070000, iOS_Future=0x10000000};
+                                               iOS_6_0=0x00060000, iOS_7_0=0x00070000,  
+                                               iOS_Future=0x10000000};
  
 namespace relocatable {
        //
@@ -409,6 +410,7 @@ struct Fixup
                                        kindStoreARM64GOTLoadPage21, kindStoreARM64GOTLoadPageOff12,
                                        kindStoreARM64GOTLeaPage21, kindStoreARM64GOTLeaPageOff12,
                                        kindStoreARM64TLVPLoadPage21, kindStoreARM64TLVPLoadPageOff12,
+                                       kindStoreARM64TLVPLoadNowLeaPage21, kindStoreARM64TLVPLoadNowLeaPageOff12,
                                        kindStoreARM64PointerToGOT, kindStoreARM64PCRelToGOT,
 #endif
                                        // dtrace probes
@@ -419,9 +421,13 @@ struct Fixup
                                        kindStoreThumbDtraceCallSiteNop, kindStoreThumbDtraceIsEnableSiteClear,
                                        // lazy binding
                                        kindLazyTarget, kindSetLazyOffset,
+                                       // islands
+                                       kindIslandTarget,
                                        // data-in-code markers
                                        kindDataInCodeStartData, kindDataInCodeStartJT8, kindDataInCodeStartJT16, 
                                        kindDataInCodeStartJT32, kindDataInCodeStartJTA32, kindDataInCodeEnd,
+                                       // linker optimzation hints
+                                       kindLinkerOptimizationHint,
                                        // pointer store combinations
                                        kindStoreTargetAddressLittleEndian32,   // kindSetTargetAddress + kindStoreLittleEndian32
                                        kindStoreTargetAddressLittleEndian64,   // kindSetTargetAddress + kindStoreLittleEndian64
@@ -451,6 +457,10 @@ struct Fixup
                                        kindStoreTargetAddressARM64GOTLoadPageOff12,// kindSetTargetAddress + kindStoreARM64GOTLoadPageOff12
                                        kindStoreTargetAddressARM64GOTLeaPage21,        // kindSetTargetAddress + kindStoreARM64GOTLeaPage21
                                        kindStoreTargetAddressARM64GOTLeaPageOff12,     // kindSetTargetAddress + kindStoreARM64GOTLeaPageOff12
+                                       kindStoreTargetAddressARM64TLVPLoadPage21,      // kindSetTargetAddress + kindStoreARM64TLVPLoadPage21
+                                       kindStoreTargetAddressARM64TLVPLoadPageOff12,// kindSetTargetAddress + kindStoreARM64TLVPLoadPageOff12
+                                       kindStoreTargetAddressARM64TLVPLoadNowLeaPage21,        // kindSetTargetAddress + kindStoreARM64TLVPLoadNowLeaPage21
+                                       kindStoreTargetAddressARM64TLVPLoadNowLeaPageOff12,     // kindSetTargetAddress + kindStoreARM64TLVPLoadNowLeaPageOff12
 #endif
                        };
 
@@ -516,6 +526,23 @@ struct Fixup
                contentAddendOnly(false), contentDetlaToAddendOnly(false), contentIgnoresAddend(false) 
                        { u.addend = addend; }
                        
+#if SUPPORT_ARCH_arm64
+       Fixup(Kind k, uint32_t lohKind, uint32_t off1, uint32_t off2) :
+               offsetInAtom(off1), kind(k), clusterSize(k1of1),  
+               weakImport(false), binding(Fixup::bindingNone), contentAddendOnly(false), 
+               contentDetlaToAddendOnly(false), contentIgnoresAddend(false) {
+                       assert(k == kindLinkerOptimizationHint);
+                       LOH_arm64 extra;
+                       extra.addend = 0;
+                       extra.info.kind = lohKind;
+                       extra.info.count = 1;
+                       extra.info.delta1 = 0;
+                       extra.info.delta2 = (off2 - off1) >> 2;
+                       u.addend = extra.addend; 
+               }
+#endif                 
+                       
+
        bool firstInCluster() const { 
                switch (clusterSize) {
                        case k1of1:
@@ -544,6 +571,20 @@ struct Fixup
                return false;
        }
        
+#if SUPPORT_ARCH_arm64
+       union LOH_arm64 {
+               uint64_t        addend;
+               struct {
+                       unsigned        kind    :  6,
+                                               count   :  2,   // 00 => 1 addr, 11 => 4 addrs
+                                               delta1 : 14,    // 16-bit delta, low 2 bits assumed zero
+                                               delta2 : 14,
+                                               delta3 : 14,
+                                               delta4 : 14;    
+               } info;
+       };
+#endif
+       
 };
 
 //
@@ -707,6 +748,7 @@ public:
                }
                return false;
        }
+       virtual void                                                    setFile(const File* f)          { }
        
        virtual UnwindInfo::iterator                    beginUnwind() const { return NULL; }
        virtual UnwindInfo::iterator                    endUnwind() const       { return NULL; }
@@ -805,7 +847,8 @@ public:
                bool                                                    hasExternalRelocs;
        };
        
-
+       virtual uint64_t                                        assignFileOffsets() = 0;
+       virtual void                                            setSectionSizesAndAlignments() = 0;
        virtual ld::Internal::FinalSection*     addAtom(const Atom&) = 0;
        virtual ld::Internal::FinalSection* getFinalSection(const ld::Section& inputSection) = 0;
        virtual                                                         ~Internal() {}
@@ -816,7 +859,10 @@ public:
                                                                                        objcDylibConstraint(ld::File::objcConstraintNone), 
                                                                                        cpuSubType(0), 
                                                                                        allObjectFilesScatterable(true), 
-                                                                                       someObjectFileHasDwarf(false), usingHugeSections(false) { }
+                                                                                       someObjectFileHasDwarf(false), usingHugeSections(false),
+                                                                                       hasThreadLocalVariableDefinitions(false),
+                                                                                       hasWeakExternalSymbols(false),
+                                                                                       someObjectHasOptimizationHints(false) { }
                                                                                
        std::vector<FinalSection*>                                      sections;
        std::vector<ld::dylib::File*>                           dylibs;
@@ -835,6 +881,9 @@ public:
        bool                                                                            allObjectFilesScatterable;
        bool                                                                            someObjectFileHasDwarf;
        bool                                                                            usingHugeSections;
+       bool                                                                            hasThreadLocalVariableDefinitions;
+       bool                                                                            hasWeakExternalSymbols;
+       bool                                                                            someObjectHasOptimizationHints;
 };