1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index b307983..dc7d410f 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -14641,3 +14641,30 @@ arm_shift_truncation_mask (enum machine_mode mode)
 {
   return mode == SImode ? 255 : 0;
 }
+
+
+/* Map internal gcc register numbers to DWARF2 register numbers.  */
+
+unsigned int
+arm_dbx_register_number (unsigned int regno)
+{
+  if (regno < 16)
+    return regno;
+
+  /* TODO: Legacy targets output FPA regs as registers 16-23 for backwards
+     compatibility.  The EABI defines them as registers 96-103.  */
+  if (IS_FPA_REGNUM (regno))
+    return (TARGET_AAPCS_BASED ? 96 : 16) + regno - FIRST_FPA_REGNUM;
+
+  if (IS_VFP_REGNUM (regno))
+    return 64 + regno - FIRST_VFP_REGNUM;
+
+  if (IS_IWMMXT_GR_REGNUM (regno))
+    return 104 + regno - FIRST_IWMMXT_GR_REGNUM;
+
+  if (IS_IWMMXT_REGNUM (regno))
+    return 112 + regno - FIRST_IWMMXT_REGNUM;
+
+  abort ();
+}
+