From 2428fc5b040acc28a0bc6a9d61de93b3bca9b3e9 Mon Sep 17 00:00:00 2001
From: William Tan <1284324+Ninja3047@users.noreply.github.com>
Date: Fri, 8 Mar 2024 10:42:49 -0500
Subject: [PATCH] add dwarf register mapping for sparc

---
 .../Sparc/data/languages/Sparc.dwarf          | 19 +++++++++++++++++++
 .../Sparc/data/languages/SparcV9.ldefs        |  1 +
 2 files changed, 20 insertions(+)
 create mode 100644 Ghidra/Processors/Sparc/data/languages/Sparc.dwarf

diff --git a/Ghidra/Processors/Sparc/data/languages/Sparc.dwarf b/Ghidra/Processors/Sparc/data/languages/Sparc.dwarf
new file mode 100644
index 0000000000..d178bdaaa5
--- /dev/null
+++ b/Ghidra/Processors/Sparc/data/languages/Sparc.dwarf
@@ -0,0 +1,19 @@
+<dwarf>
+  <!-- from gdb/sparc-tdep.h -->
+  <register_mappings>
+    <register_mapping dwarf="0" ghidra="g0" auto_count="8"/> <!-- g0..g7 -->
+    <register_mapping dwarf="8" ghidra="o0" auto_count="6"/> <!-- o0..o5 -->
+    <register_mapping dwarf="14" ghidra="sp" stackpointer="true"/>
+    <register_mapping dwarf="15" ghidra="o7"/>
+    <register_mapping dwarf="16" ghidra="l0" auto_count="8"/> <!-- l0..l7 -->
+    <register_mapping dwarf="24" ghidra="i0" auto_count="8"/> <!-- i0..i5 -->
+    <register_mapping dwarf="30" ghidra="fp" stackpointer="true"/>
+    <register_mapping dwarf="31" ghidra="i7"/>
+    <register_mapping dwarf="32" ghidra="fs0" auto_count="32"/> <!-- fs0..fs31 -->
+    <register_mapping dwarf="64" ghidra="Y"/>
+    <register_mapping dwarf="68" ghidra="PC"/>
+    <register_mapping dwarf="69" ghidra="nPC"/>
+    <register_mapping dwarf="70" ghidra="fsr"/>
+  </register_mappings>
+  <call_frame_cfa value="0"/>
+</dwarf>
diff --git a/Ghidra/Processors/Sparc/data/languages/SparcV9.ldefs b/Ghidra/Processors/Sparc/data/languages/SparcV9.ldefs
index 2477899954..95b4e5dd03 100644
--- a/Ghidra/Processors/Sparc/data/languages/SparcV9.ldefs
+++ b/Ghidra/Processors/Sparc/data/languages/SparcV9.ldefs
@@ -30,5 +30,6 @@
     <external_name tool="gnu" name="sparc:v9b"/>
     <external_name tool="IDA-PRO" name="sparcb" />
     <external_name tool="qemu" name="qemu-sparc64"/>
+    <external_name tool="DWARF.register.mapping.file" name="Sparc.dwarf"/>
   </language>
 </language_definitions>