From 6ac1be4b6d2ab53fca96327d89da946b5bec5b41 Mon Sep 17 00:00:00 2001
From: Todd Fiala <todd.fiala@gmail.com>
Date: Thu, 21 Aug 2014 16:34:03 +0000
Subject: Enable more Linux aarch64 PTRACE support for local and remote
 debugging.

See http://reviews.llvm.org/D4803 for more details.

Change by Paul Osmialowski.

llvm-svn: 216185
---
 .../Plugins/Process/Linux/NativeProcessLinux.cpp   | 54 ++++++++++++++++++++++
 1 file changed, 54 insertions(+)

(limited to 'lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp')

diff --git a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
index 32915d2b4e43..2cd0a1388830 100644
--- a/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeProcessLinux.cpp
@@ -20,12 +20,18 @@
 #include <linux/unistd.h>
 #include <sys/personality.h>
 #include <sys/ptrace.h>
+#include <sys/uio.h>
 #include <sys/socket.h>
 #include <sys/syscall.h>
 #include <sys/types.h>
 #include <sys/user.h>
 #include <sys/wait.h>
 
+#if defined (__arm64__) || defined (__aarch64__)
+// NT_PRSTATUS and NT_FPREGSET definition
+#include <elf.h>
+#endif
+
 // C++ Includes
 #include <fstream>
 #include <string>
@@ -662,10 +668,22 @@ namespace
     void
     ReadGPROperation::Execute(NativeProcessLinux *monitor)
     {
+#if defined (__arm64__) || defined (__aarch64__)
+        int regset = NT_PRSTATUS;
+        struct iovec ioVec;
+
+        ioVec.iov_base = m_buf;
+        ioVec.iov_len = m_buf_size;
+        if (PTRACE(PTRACE_GETREGSET, m_tid, &regset, &ioVec, m_buf_size) < 0)
+            m_result = false;
+        else
+            m_result = true;
+#else
         if (PTRACE(PTRACE_GETREGS, m_tid, NULL, m_buf, m_buf_size) < 0)
             m_result = false;
         else
             m_result = true;
+#endif
     }
 
     //------------------------------------------------------------------------------
@@ -690,10 +708,22 @@ namespace
     void
     ReadFPROperation::Execute(NativeProcessLinux *monitor)
     {
+#if defined (__arm64__) || defined (__aarch64__)
+        int regset = NT_FPREGSET;
+        struct iovec ioVec;
+
+        ioVec.iov_base = m_buf;
+        ioVec.iov_len = m_buf_size;
+        if (PTRACE(PTRACE_GETREGSET, m_tid, &regset, &ioVec, m_buf_size) < 0)
+            m_result = false;
+        else
+            m_result = true;
+#else
         if (PTRACE(PTRACE_GETFPREGS, m_tid, NULL, m_buf, m_buf_size) < 0)
             m_result = false;
         else
             m_result = true;
+#endif
     }
 
     //------------------------------------------------------------------------------
@@ -747,10 +777,22 @@ namespace
     void
     WriteGPROperation::Execute(NativeProcessLinux *monitor)
     {
+#if defined (__arm64__) || defined (__aarch64__)
+        int regset = NT_PRSTATUS;
+        struct iovec ioVec;
+
+        ioVec.iov_base = m_buf;
+        ioVec.iov_len = m_buf_size;
+        if (PTRACE(PTRACE_SETREGSET, m_tid, &regset, &ioVec, m_buf_size) < 0)
+            m_result = false;
+        else
+            m_result = true;
+#else
         if (PTRACE(PTRACE_SETREGS, m_tid, NULL, m_buf, m_buf_size) < 0)
             m_result = false;
         else
             m_result = true;
+#endif
     }
 
     //------------------------------------------------------------------------------
@@ -775,10 +817,22 @@ namespace
     void
     WriteFPROperation::Execute(NativeProcessLinux *monitor)
     {
+#if defined (__arm64__) || defined (__aarch64__)
+        int regset = NT_FPREGSET;
+        struct iovec ioVec;
+
+        ioVec.iov_base = m_buf;
+        ioVec.iov_len = m_buf_size;
+        if (PTRACE(PTRACE_SETREGSET, m_tid, &regset, &ioVec, m_buf_size) < 0)
+            m_result = false;
+        else
+            m_result = true;
+#else
         if (PTRACE(PTRACE_SETFPREGS, m_tid, NULL, m_buf, m_buf_size) < 0)
             m_result = false;
         else
             m_result = true;
+#endif
     }
 
     //------------------------------------------------------------------------------
-- 
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