StopInfo/Mach: Delete PPC support

[vsk]

Summary

LLDB appears to have at least partial support for PPC, but PPC on Mach isn't a thing AFAIK.

[jingham]

Yes, I don't think we need to support this anymore.

lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp

387

Might as well remove this break too.

lldb/source/Plugins/Process/Utility/StopInfoMachException.cpp

case llvm::Triple::thumb:
         code_desc = "EXC_ARM_DA_ALIGN";
         break;
       case 0x102:
         code_desc = "EXC_ARM_DA_DEBUG";
         break;
       }
       break;
 
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-      switch (m_exc_code) {
-      case 0x101:
-        code_desc = "EXC_PPC_VM_PROT_READ";
-        break;
-      case 0x102:
-        code_desc = "EXC_PPC_BADSPACE";
-        break;
-      case 0x103:
-        code_desc = "EXC_PPC_UNALIGNED";
-        break;
-      }
-      break;
-
     default:
       break;
     }
     break;
 
   case 2: // EXC_BAD_INSTRUCTION
     exc_desc = "EXC_BAD_INSTRUCTION";
     switch (cpu) {
     case llvm::Triple::x86:
     case llvm::Triple::x86_64:
       if (m_exc_code == 1)
         code_desc = "EXC_I386_INVOP";
       break;
 
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-      switch (m_exc_code) {
-      case 1:
-        code_desc = "EXC_PPC_INVALID_SYSCALL";
-        break;
-      case 2:
-        code_desc = "EXC_PPC_UNIPL_INST";
-        break;
-      case 3:
-        code_desc = "EXC_PPC_PRIVINST";
-        break;
-      case 4:
-        code_desc = "EXC_PPC_PRIVREG";
-        break;
-      case 5:
-        code_desc = "EXC_PPC_TRACE";
-        break;
-      case 6:
-        code_desc = "EXC_PPC_PERFMON";
-        break;
-      }
-      break;
-
     case llvm::Triple::arm:
     case llvm::Triple::thumb:
       if (m_exc_code == 1)
         code_desc = "EXC_ARM_UNDEFINED";
       break;
 
     default:
       break;
case llvm::Triple::x86_64:
         code_desc = "EXC_I386_BOUND";
         break;
       case 8:
         code_desc = "EXC_I386_SSEEXTERR";
         break;
       }
       break;
 
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-      switch (m_exc_code) {
-      case 1:
-        code_desc = "EXC_PPC_OVERFLOW";
-        break;
-      case 2:
-        code_desc = "EXC_PPC_ZERO_DIVIDE";
-        break;
-      case 3:
-        code_desc = "EXC_PPC_FLT_INEXACT";
-        break;
-      case 4:
-        code_desc = "EXC_PPC_FLT_ZERO_DIVIDE";
-        break;
-      case 5:
-        code_desc = "EXC_PPC_FLT_UNDERFLOW";
-        break;
-      case 6:
-        code_desc = "EXC_PPC_FLT_OVERFLOW";
-        break;
-      case 7:
-        code_desc = "EXC_PPC_FLT_NOT_A_NUMBER";
-        break;
-      }
-      break;
-
     default:
       break;
     }
     break;
 
   case 4: // EXC_EMULATION
     exc_desc = "EXC_EMULATION";
     break;
case llvm::Triple::x86_64:
         code_desc = "EXC_I386_SGL";
         break;
       case 2:
         code_desc = "EXC_I386_BPT";
         break;
       }
       break;
 
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-      switch (m_exc_code) {
-      case 1:
-        code_desc = "EXC_PPC_BREAKPOINT";
-        break;
-      }
-      break;
-
     case llvm::Triple::arm:
     case llvm::Triple::thumb:
       switch (m_exc_code) {
       case 0x101:
         code_desc = "EXC_ARM_DA_ALIGN";
         break;
       case 0x102:
         code_desc = "EXC_ARM_DA_DEBUG";
StopInfoSP StopInfoMachException::CreateStopReasonWithMachException(
   ExecutionContext exe_ctx(thread.shared_from_this());
   Target *target = exe_ctx.GetTargetPtr();
   const llvm::Triple::ArchType cpu =
       target ? target->GetArchitecture().GetMachine()
              : llvm::Triple::UnknownArch;
 
   switch (exc_type) {
   case 1: // EXC_BAD_ACCESS
-    break;
-
   case 2: // EXC_BAD_INSTRUCTION
-    switch (cpu) {
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-      switch (exc_code) {
-      case 1: // EXC_PPC_INVALID_SYSCALL
-      case 2: // EXC_PPC_UNIPL_INST
-      case 3: // EXC_PPC_PRIVINST
-      case 4: // EXC_PPC_PRIVREG
-        break;
-      case 5: // EXC_PPC_TRACE
-        return StopInfo::CreateStopReasonToTrace(thread);
-      case 6: // EXC_PPC_PERFMON
-        break;
-      }
-      break;
-
-    default:
-      break;
-    }
-    break;
-
   case 3: // EXC_ARITHMETIC
   case 4: // EXC_EMULATION
     break;
 
   case 5:                    // EXC_SOFTWARE
     if (exc_code == 0x10003) // EXC_SOFT_SIGNAL
     {
       if (exc_sub_code == 5) {
case llvm::Triple::x86_64:
           is_trace_if_actual_breakpoint_missing = true;
 
         is_actual_breakpoint = true;
         if (!pc_already_adjusted)
           pc_decrement = 1;
       }
       break;
 
-    case llvm::Triple::ppc:
-    case llvm::Triple::ppc64:
-      is_actual_breakpoint = exc_code == 1; // EXC_PPC_BREAKPOINT
-      break;
-
     case llvm::Triple::arm:
     case llvm::Triple::thumb:
       if (exc_code == 0x102) // EXC_ARM_DA_DEBUG
       {
         // It's a watchpoint, then, if the exc_sub_code indicates a
         // known/enabled data break address from our watchpoint list.
         lldb::WatchpointSP wp_sp;
         if (target)