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Moved MachORelocation to its own header file. Have a call through the
TargetMachOInfo object to the GetTargetRelocation method. Pass into it non-Mach-O-specific parameters. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33813 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -27,6 +27,7 @@ namespace llvm {
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class Mangler;
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class MachineCodeEmitter;
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class MachOCodeEmitter;
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class OutputBuffer;
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/// MachOSym - This struct contains information about each symbol that is
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/// added to logical symbol table for the module. This is eventually
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@ -298,37 +299,6 @@ namespace llvm {
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initprot(VM_PROT_ALL), nsects(0), flags(0) { }
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};
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/// MachORelocation - This struct contains information about each relocation
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/// that needs to be emitted to the file.
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/// see <mach-o/reloc.h>
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struct MachORelocation {
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uint32_t r_address; // offset in the section to what is being relocated
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uint32_t r_symbolnum; // symbol index if r_extern == 1 else section index
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bool r_pcrel; // was relocated pc-relative already
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uint8_t r_length; // length = 2 ^ r_length
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bool r_extern; //
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uint8_t r_type; // if not 0, machine-specific relocation type.
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bool r_scattered; // 1 = scattered, 0 = non-scattered
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int32_t r_value; // the value the item to be relocated is referring
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// to.
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uint32_t getPackedFields() {
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if (r_scattered)
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return (1 << 31) | (r_pcrel << 30) | ((r_length & 3) << 28) |
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((r_type & 15) << 24) | (r_address & 0x00FFFFFF);
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else
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return (r_symbolnum << 8) | (r_pcrel << 7) | ((r_length & 3) << 5) |
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(r_extern << 4) | (r_type & 15);
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}
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uint32_t getAddress() { return r_scattered ? r_value : r_address; }
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MachORelocation(uint32_t addr, uint32_t index, bool pcrel, uint8_t len,
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bool ext, uint8_t type, bool scattered = false,
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int32_t value = 0) :
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r_address(addr), r_symbolnum(index), r_pcrel(pcrel), r_length(len),
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r_extern(ext), r_type(type), r_scattered(scattered), r_value(value) {}
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};
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/// MachOSection - This struct contains information about each section in a
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/// particular segment that is emitted to the file. This is eventually
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/// turned into the SectionCommand in the load command for a particlar
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@ -635,8 +605,19 @@ namespace llvm {
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MachineBasicBlock *MBB) const {
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return TM.getMachOWriterInfo()->GetJTRelocation(Offset, MBB);
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}
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virtual void GetTargetRelocation(MachineRelocation &MR, MachOSection &From,
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MachOSection &To, bool Scattered) = 0;
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/// GetTargetRelocation - Returns the number of relocations.
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unsigned GetTargetRelocation(MachineRelocation &MR,
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unsigned FromIdx,
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unsigned ToAddr,
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unsigned ToIndex,
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OutputBuffer &RelocOut,
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OutputBuffer &SecOut,
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bool Scattered) {
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return TM.getMachOWriterInfo()->GetTargetRelocation(MR, FromIdx, ToAddr,
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ToIndex, RelocOut,
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SecOut, Scattered);
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}
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};
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}
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