Add software breakpoint support for Linux aarch64.

See http://reviews.llvm.org/D4969 for details.

Change by Paul Osmialowski.

llvm-svn: 216188

1 files changed, 11 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
index 2cd0a138883..f004a8e8539 100644
--- a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
@@ -2921,10 +2921,15 @@ NativeProcessLinux::GetSoftwareBreakpointSize (NativeRegisterContextSP context_s
 {
     // FIXME put this behind a breakpoint protocol class that can be
     // set per architecture.  Need ARM, MIPS support here.
+    static const uint8_t g_aarch64_opcode[] = { 0x00, 0x00, 0x20, 0xd4 };
     static const uint8_t g_i386_opcode [] = { 0xCC };
 
     switch (m_arch.GetMachine ())
     {
+        case llvm::Triple::aarch64:
+            actual_opcode_size = static_cast<uint32_t> (sizeof(g_aarch64_opcode));
+            return Error ();
+
         case llvm::Triple::x86:
         case llvm::Triple::x86_64:
             actual_opcode_size = static_cast<uint32_t> (sizeof(g_i386_opcode));
@@ -2950,10 +2955,16 @@ NativeProcessLinux::GetSoftwareBreakpointTrapOpcode (size_t trap_opcode_size_hin
 {
     // FIXME put this behind a breakpoint protocol class that can be
     // set per architecture.  Need ARM, MIPS support here.
+    static const uint8_t g_aarch64_opcode[] = { 0x00, 0x00, 0x20, 0xd4 };
     static const uint8_t g_i386_opcode [] = { 0xCC };
 
     switch (m_arch.GetMachine ())
     {
+    case llvm::Triple::aarch64:
+        trap_opcode_bytes = g_aarch64_opcode;
+        actual_opcode_size = sizeof(g_aarch64_opcode);
+        return Error ();
+
     case llvm::Triple::x86:
     case llvm::Triple::x86_64:
         trap_opcode_bytes = g_i386_opcode;