Debug support for arm-linux.

Patch by Raul Herbster.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36690 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 32 insertions, 18 deletions

diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index ac392607b0..c35ef57c9c 100644
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -175,9 +175,7 @@ FunctionPass *llvm::createARMCodePrinterPass(std::ostream &o,
 bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
   AFI = MF.getInfo<ARMFunctionInfo>();
 
-  if (Subtarget->isTargetDarwin()) {
-    DW.SetModuleInfo(&getAnalysis<MachineModuleInfo>());
-  }
+  DW.SetModuleInfo(&getAnalysis<MachineModuleInfo>());
 
   SetupMachineFunction(MF);
   O << "\n";
@@ -231,10 +229,8 @@ bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
     EmitAlignment(2, F);
 
   O << CurrentFnName << ":\n";
-  if (Subtarget->isTargetDarwin()) {
-    // Emit pre-function debug information.
-    DW.BeginFunction(&MF);
-  }
+  // Emit pre-function debug information.
+  DW.BeginFunction(&MF);
 
   // Print out code for the function.
   for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
@@ -254,10 +250,8 @@ bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
   if (TAI->hasDotTypeDotSizeDirective())
     O << "\t.size " << CurrentFnName << ", .-" << CurrentFnName << "\n";
 
-  if (Subtarget->isTargetDarwin()) {
-    // Emit post-function debug information.
-    DW.EndFunction();
-  }
+  // Emit post-function debug information.
+  DW.EndFunction();
 
   return false;
 }
@@ -769,10 +763,8 @@ void ARMAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
 }
 
 bool ARMAsmPrinter::doInitialization(Module &M) {
-  if (Subtarget->isTargetDarwin()) {
-    // Emit initial debug information.
-    DW.BeginModule(&M);
-  }
+  // Emit initial debug information.
+  DW.BeginModule(&M);
   
   return AsmPrinter::doInitialization(M);
 }
@@ -998,6 +990,9 @@ bool ARMAsmPrinter::doFinalization(Module &M) {
     // linker can safely perform dead code stripping.  Since LLVM never
     // generates code that does this, it is always safe to set.
     O << "\t.subsections_via_symbols\n";
+  } else {
+    // Emit final debug information for ELF.
+    DW.EndModule();
   }
 
   AsmPrinter::doFinalization(M);
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 8981ea4299..585b660b9c 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -178,9 +178,6 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
   // Support label based line numbers.
   setOperationAction(ISD::LOCATION, MVT::Other, Expand);
   setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand);
-  // FIXME - use subtarget debug flags
-  if (!Subtarget->isTargetDarwin())
-    setOperationAction(ISD::LABEL, MVT::Other, Expand);
 
   setOperationAction(ISD::RET,           MVT::Other, Custom);
   setOperationAction(ISD::GlobalAddress, MVT::i32,   Custom);
diff --git a/lib/Target/ARM/ARMRegisterInfo.cpp b/lib/Target/ARM/ARMRegisterInfo.cpp
index 4fd0f8929a..a0eb137e94 100644
--- a/lib/Target/ARM/ARMRegisterInfo.cpp
+++ b/lib/Target/ARM/ARMRegisterInfo.cpp
@@ -1373,6 +1373,11 @@ void ARMRegisterInfo::emitPrologue(MachineFunction &MF) const {
     emitSPUpdate(MBB, MBBI, -NumBytes, isThumb, TII);
   }
 
+  if(STI.isTargetELF() && hasFP(MF)) {
+    MFI->setOffsetAdjustment(MFI->getOffsetAdjustment() -
+                             AFI->getFramePtrSpillOffset());
+  }
+
   AFI->setGPRCalleeSavedArea1Size(GPRCS1Size);
   AFI->setGPRCalleeSavedArea2Size(GPRCS2Size);
   AFI->setDPRCalleeSavedAreaSize(DPRCSSize);
diff --git a/lib/Target/ARM/ARMTargetAsmInfo.cpp b/lib/Target/ARM/ARMTargetAsmInfo.cpp
index 735790c237..c7cf074b4e 100644
--- a/lib/Target/ARM/ARMTargetAsmInfo.cpp
+++ b/lib/Target/ARM/ARMTargetAsmInfo.cpp
@@ -63,8 +63,25 @@ ARMTargetAsmInfo::ARMTargetAsmInfo(const ARMTargetMachine &TM) {
     DwarfRangesSection = ".section __DWARF,__debug_ranges,regular,debug";
     DwarfMacInfoSection = ".section __DWARF,__debug_macinfo,regular,debug";
   } else {
+    NeedsSet = false;
+    HasLEB128 = true;
+    AbsoluteDebugSectionOffsets = true;
+    ReadOnlySection = "\t.section\t.rodata\n";
     PrivateGlobalPrefix = ".L";
     WeakRefDirective = "\t.weak\t";
+    DwarfRequiresFrameSection = false;
+    DwarfAbbrevSection =  "\t.section\t.debug_abbrev,\"\",%progbits";
+    DwarfInfoSection =    "\t.section\t.debug_info,\"\",%progbits";
+    DwarfLineSection =    "\t.section\t.debug_line,\"\",%progbits";
+    DwarfFrameSection =   "\t.section\t.debug_frame,\"\",%progbits";
+    DwarfPubNamesSection ="\t.section\t.debug_pubnames,\"\",%progbits";
+    DwarfPubTypesSection ="\t.section\t.debug_pubtypes,\"\",%progbits";
+    DwarfStrSection =     "\t.section\t.debug_str,\"\",%progbits";
+    DwarfLocSection =     "\t.section\t.debug_loc,\"\",%progbits";
+    DwarfARangesSection = "\t.section\t.debug_aranges,\"\",%progbits";
+    DwarfRangesSection =  "\t.section\t.debug_ranges,\"\",%progbits";
+    DwarfMacInfoSection = "\t.section\t.debug_macinfo,\"\",%progbits";
+
     if (Subtarget->isAAPCS_ABI()) {
       StaticCtorsSection = "\t.section .init_array,\"aw\",%init_array";
       StaticDtorsSection = "\t.section .fini_array,\"aw\",%fini_array";