Changes in directory llvm/include/llvm/CodeGen:
MachOWriter.h updated: 1.3 -> 1.4
---
Log message:
Get closer to handling globals correctly. We now generally get them in the
right section.
---
Diffs of the changes: (+36 -2)
MachOWriter.h | 38 ++++++++++++++++++++++++++++++++++++--
1 files changed, 36 insertions(+), 2 deletions(-)
Index: llvm/include/llvm/CodeGen/MachOWriter.h
diff -u llvm/include/llvm/CodeGen/MachOWriter.h:1.3
llvm/include/llvm/CodeGen/MachOWriter.h:1.4
--- llvm/include/llvm/CodeGen/MachOWriter.h:1.3 Thu Aug 24 09:25:39 2006
+++ llvm/include/llvm/CodeGen/MachOWriter.h Fri Aug 25 01:36:58 2006
@@ -14,8 +14,10 @@
#ifndef LLVM_CODEGEN_MACHOWRITER_H
#define LLVM_CODEGEN_MACHOWRITER_H
-#include "llvm/CodeGen/MachineRelocation.h"
+#include "llvm/DerivedTypes.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetMachine.h"
#include <list>
namespace llvm {
@@ -377,6 +379,31 @@
MachOSection::S_ATTR_PURE_INSTRUCTIONS |
MachOSection::S_ATTR_SOME_INSTRUCTIONS);
}
+ MachOSection &getBSSSection() {
+ return getSection("__DATA", "__bss", MachOSection::S_ZEROFILL);
+ }
+ MachOSection &getDataSection() {
+ return getSection("__DATA", "__data");
+ }
+ MachOSection &getConstSection(const Type *Ty) {
+ // FIXME: support cstring literals and pointer literal
+ if (Ty->isPrimitiveType()) {
+ unsigned Size = TM.getTargetData()->getTypeSize(Ty);
+ switch(Size) {
+ default: break; // Fall through to __TEXT,__const
+ case 4:
+ return getSection("__TEXT", "__literal4",
+ MachOSection::S_4BYTE_LITERALS);
+ case 8:
+ return getSection("__TEXT", "__literal8",
+ MachOSection::S_8BYTE_LITERALS);
+ case 16:
+ return getSection("__TEXT", "__literal16",
+ MachOSection::S_16BYTE_LITERALS);
+ }
+ }
+ return getSection("__TEXT", "__const");
+ }
/// MachOSymTab - This struct contains information about the offsets and
/// size of symbol table information.
@@ -488,7 +515,8 @@
static unsigned entrySize() { return 12; }
MachOSym(const GlobalValue *gv, uint8_t sect) : GV(gv), n_strx(0),
- n_type(N_UNDF), n_sect(sect), n_desc(0), n_value(0) {}
+ n_type(sect == NO_SECT ? N_UNDF : N_SECT), n_sect(sect), n_desc(0),
+ n_value(0) {}
};
/// SymbolTable - This is the list of symbols we have emitted to the file.
@@ -496,6 +524,11 @@
/// local symbols first in the list).
std::vector<MachOSym> SymbolTable;
+ /// PendingSyms - This is a list of externally defined symbols that we have
+ /// been asked to emit, but have not seen a reference to. When a reference
+ /// is seen, the symbol will move from this list to the SymbolTable.
+ std::vector<MachOSym> PendingSyms;
+
/// DynamicSymbolTable - This is just a vector of indices into
/// SymbolTable to aid in emitting the DYSYMTAB load command.
std::vector<unsigned> DynamicSymbolTable;
@@ -586,6 +619,7 @@
}
private:
+ void AddSymbolToSection(MachOSection &MOS, GlobalVariable *GV);
void EmitGlobal(GlobalVariable *GV);
void EmitHeaderAndLoadCommands();
void EmitSections();
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