target/sparc: Restore 'gdb-xml/sparc64-cpu.xml'

Restore gdb-xml/sparc64-cpu.xml from mainstream binutils, tag
'binutils-2_46', found in the gdb/features/sparc/folder [*].

[*] https://sourceware.org/git/?p=binutils-gdb.git;a=tree;f=gdb/features/sparc;hb=refs/tags/binutils-2_46

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20260219191955.83815-14-philmd@linaro.org>

configs/targets/sparc64-linux-user.mak

@@ -4,6 +4,6 @@ TARGET_ABI_DIR=sparc
 TARGET_SYSTBL_ABI=common,64
 TARGET_SYSTBL=syscall.tbl
 TARGET_BIG_ENDIAN=y
-TARGET_XML_FILES=gdb-xml/sparc64-core.xml gdb-xml/sparc64-fpu.xml gdb-xml/sparc64-cp0.xml
+TARGET_XML_FILES=gdb-xml/sparc64-cpu.xml gdb-xml/sparc64-fpu.xml gdb-xml/sparc64-cp0.xml
 TARGET_LONG_BITS=64
 TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API=y

configs/targets/sparc64-softmmu.mak

@@ -1,7 +1,7 @@
 TARGET_ARCH=sparc64
 TARGET_BASE_ARCH=sparc
 TARGET_BIG_ENDIAN=y
-TARGET_XML_FILES=gdb-xml/sparc64-core.xml gdb-xml/sparc64-fpu.xml gdb-xml/sparc64-cp0.xml
+TARGET_XML_FILES=gdb-xml/sparc64-cpu.xml gdb-xml/sparc64-fpu.xml gdb-xml/sparc64-cp0.xml
 TARGET_LONG_BITS=64
 TARGET_NOT_USING_LEGACY_LDST_PHYS_API=y
 TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API=y

gdb-xml/sparc64-core.xml → gdb-xml/sparc64-cpu.xml

@@ -1,12 +1,12 @@
 <?xml version="1.0"?>
-<!-- Copyright (C) 2013-2025 Free Software Foundation, Inc.
+<!-- Copyright (C) 2013-2026 Free Software Foundation, Inc.
 
      Copying and distribution of this file, with or without modification,
      are permitted in any medium without royalty provided the copyright
      notice and this notice are preserved.  -->
 
 <!DOCTYPE feature SYSTEM "gdb-target.dtd">
-<feature name="org.gnu.gdb.sparc.core">
+<feature name="org.gnu.gdb.sparc.cpu">
   <reg name="g0" bitsize="64" type="uint64" regnum="0"/>
   <reg name="g1" bitsize="64" type="uint64" regnum="1"/>
   <reg name="g2" bitsize="64" type="uint64" regnum="2"/>

target/sparc/cpu.c

@@ -1093,7 +1093,7 @@ static void sparc_cpu_class_init(ObjectClass *oc, const void *data)
     cc->disas_set_info = cpu_sparc_disas_set_info;
 
 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
-    cc->gdb_core_xml_file = "sparc64-core.xml";
+    cc->gdb_core_xml_file = "sparc64-cpu.xml";
 #else
     cc->gdb_num_core_regs = 72;
 #endif