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Moved MachORelocation to its own header file. Have a call through the

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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
This commit is contained in:
Bill Wendling 2007-02-03 02:37:51 +00:00
parent db6b60c78e
commit 0f43b22320
1 changed files with 14 additions and 33 deletions
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47
include/llvm/CodeGen/MachOWriter.h
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@ -27,6 +27,7 @@ namespace llvm {
class Mangler;
class MachineCodeEmitter;
class MachOCodeEmitter;
class OutputBuffer;
/// MachOSym - This struct contains information about each symbol that is
/// added to logical symbol table for the module. This is eventually
@ -298,37 +299,6 @@ namespace llvm {
initprot(VM_PROT_ALL), nsects(0), flags(0) { }
};
/// MachORelocation - This struct contains information about each relocation
/// that needs to be emitted to the file.
/// see <mach-o/reloc.h>
struct MachORelocation {
uint32_t r_address; // offset in the section to what is being relocated
uint32_t r_symbolnum; // symbol index if r_extern == 1 else section index
bool r_pcrel; // was relocated pc-relative already
uint8_t r_length; // length = 2 ^ r_length
bool r_extern; //
uint8_t r_type; // if not 0, machine-specific relocation type.
bool r_scattered; // 1 = scattered, 0 = non-scattered
int32_t r_value; // the value the item to be relocated is referring
// to.
uint32_t getPackedFields() {
if (r_scattered)
return (1 << 31) | (r_pcrel << 30) | ((r_length & 3) << 28) |
((r_type & 15) << 24) | (r_address & 0x00FFFFFF);
else
return (r_symbolnum << 8) | (r_pcrel << 7) | ((r_length & 3) << 5) |
(r_extern << 4) | (r_type & 15);
}
uint32_t getAddress() { return r_scattered ? r_value : r_address; }
MachORelocation(uint32_t addr, uint32_t index, bool pcrel, uint8_t len,
bool ext, uint8_t type, bool scattered = false,
int32_t value = 0) :
r_address(addr), r_symbolnum(index), r_pcrel(pcrel), r_length(len),
r_extern(ext), r_type(type), r_scattered(scattered), r_value(value) {}
};
/// MachOSection - This struct contains information about each section in a
/// particular segment that is emitted to the file. This is eventually
/// turned into the SectionCommand in the load command for a particlar
@ -635,8 +605,19 @@ namespace llvm {
MachineBasicBlock *MBB) const {
return TM.getMachOWriterInfo()->GetJTRelocation(Offset, MBB);
}
virtual void GetTargetRelocation(MachineRelocation &MR, MachOSection &From,
MachOSection &To, bool Scattered) = 0;
/// GetTargetRelocation - Returns the number of relocations.
unsigned GetTargetRelocation(MachineRelocation &MR,
unsigned FromIdx,
unsigned ToAddr,
unsigned ToIndex,
OutputBuffer &RelocOut,
OutputBuffer &SecOut,
bool Scattered) {
return TM.getMachOWriterInfo()->GetTargetRelocation(MR, FromIdx, ToAddr,
ToIndex, RelocOut,
SecOut, Scattered);
}
};
}