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authorPeter Maydell <peter.maydell@linaro.org>2011-01-10 16:16:26 +0000
committerAurelien Jarno <aurelien@aurel32.net>2011-01-12 15:10:47 +0100
commit5d48e9174e3bfa8655e1dc8f80887acd9040b427 (patch)
tree53ff3fa343d5508d462d3bd9a2c962c0ca8bcfb4
parent56779034530944eb6171d843f652f3fba710ed30 (diff)
downloadfocaccia-qemu-5d48e9174e3bfa8655e1dc8f80887acd9040b427.tar.gz
focaccia-qemu-5d48e9174e3bfa8655e1dc8f80887acd9040b427.zip
arm-dis: Include opcode hex when doing disassembly
Enhance the ARM disassembler used for debugging so that it includes
the hex dump of the opcode as well as the symbolic disassembly.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
-rw-r--r--arm-dis.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arm-dis.c b/arm-dis.c
index af217397d4..3ece02c1b3 100644
--- a/arm-dis.c
+++ b/arm-dis.c
@@ -4101,6 +4101,30 @@ print_insn_arm (bfd_vma pc, struct disassemble_info *info)
        addresses, since the addend is not currently pc-relative.  */
     pc = 0;
 
+  /* We include the hexdump of the instruction. The format here
+     matches that used by objdump and the ARM ARM (in particular,
+     32 bit Thumb instructions are displayed as pairs of halfwords,
+     not as a single word.)  */
+  if (is_thumb)
+    {
+      if (size == 2)
+	{
+	  info->fprintf_func(info->stream, "%04lx       ",
+			     ((unsigned long)given) & 0xffff);
+	}
+      else
+	{
+	  info->fprintf_func(info->stream, "%04lx %04lx  ",
+			     (((unsigned long)given) >> 16) & 0xffff,
+			     ((unsigned long)given) & 0xffff);
+	}
+    }
+  else
+    {
+      info->fprintf_func(info->stream, "%08lx      ",
+			 ((unsigned long)given) & 0xffffffff);
+    }
+
   printer (pc, info, given);
 
   if (is_thumb)