* features/Makefile, features/arm-with-iwmmxt.xml,

	features/gdbserver-regs.xsl, features/number-regs.xsl,
	features/sort-regs.xsl, features/xscale-iwmmxt.xml: New files.
	* regformats/arm-with-iwmmxt.dat: Generate.
	* NEWS: Mention iWMMXt.

	* gdb.arch/iwmmxt-regs.c, gdb.arch/iwmmxt-regs.exp: New.

	* Makefile.in (OBS): Add $(XML_BUILTIN).
	(XML_DIR, XML_TARGET, XML_FILES, XML_BUILTIN): New.
	(clean): Update.
	(target.xml, xml-builtin.c, stamp-xml, arm-with-iwmmxt.o)
	(arm-with-iwmmxt.c): New.
	* config.in, configure: Regenerate.
	* configure.ac: Check for iWMMXt.  Handle srv_xmltarget,
	srv_xmlbuiltin, and srv_xmlfiles.  Define USE_XML.
	* configure.srv: Mention srv_xmltarget and srv_xmlfiles.
	(arm*-*-linux*): Add iWMMXt and regset support.
	* linux-arm-low.c (PTRACE_GETWMMXREGS, PTRACE_SETWMMXREGS): Define.
	(arm_fill_gregset, arm_store_gregset, arm_fill_wmmxregset)
	(arm_store_wmmxregset, target_regsets): New.
	* server.c (get_features_xml): Take annex argument.  Check builtin
	XML documents.
	(handle_query): Handle multiple annexes.

1 files changed, 71 insertions, 0 deletions

diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 0234093..1267e1d 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -30,6 +30,11 @@
 #define PTRACE_GET_THREAD_AREA 22
 #endif
 
+#ifndef PTRACE_GETWMMXREGS
+# define PTRACE_GETWMMXREGS 18
+# define PTRACE_SETWMMXREGS 19
+#endif
+
 #ifdef HAVE_SYS_REG_H
 #include <sys/reg.h>
 #endif
@@ -55,6 +60,60 @@ arm_cannot_fetch_register (int regno)
   return (regno >= arm_num_regs);
 }
 
+static void
+arm_fill_gregset (void *buf)
+{
+  int i;
+
+  for (i = 0; i < arm_num_regs; i++)
+    if (arm_regmap[i] != -1)
+      collect_register (i, ((char *) buf) + arm_regmap[i]);
+}
+
+static void
+arm_store_gregset (const void *buf)
+{
+  int i;
+  char zerobuf[8];
+
+  memset (zerobuf, 0, 8);
+  for (i = 0; i < arm_num_regs; i++)
+    if (arm_regmap[i] != -1)
+      supply_register (i, ((char *) buf) + arm_regmap[i]);
+    else
+      supply_register (i, zerobuf);
+}
+
+#ifdef __IWMMXT__
+
+static void
+arm_fill_wmmxregset (void *buf)
+{
+  int i;
+
+  for (i = 0; i < 16; i++)
+    collect_register (arm_num_regs + i, (char *) buf + i * 8);
+
+  /* We only have access to wcssf, wcasf, and wcgr0-wcgr3.  */
+  for (i = 0; i < 6; i++)
+    collect_register (arm_num_regs + i + 16, (char *) buf + 16 * 8 + i * 4);
+}
+
+static void
+arm_store_wmmxregset (const void *buf)
+{
+  int i;
+
+  for (i = 0; i < 16; i++)
+    supply_register (arm_num_regs + i, (char *) buf + i * 8);
+
+  /* We only have access to wcssf, wcasf, and wcgr0-wcgr3.  */
+  for (i = 0; i < 6; i++)
+    supply_register (arm_num_regs + i + 16, (char *) buf + 16 * 8 + i * 4);
+}
+
+#endif /* __IWMMXT__ */
+
 extern int debug_threads;
 
 static CORE_ADDR
@@ -130,6 +189,18 @@ ps_get_thread_area (const struct ps_prochandle *ph,
   return PS_OK;
 }
 
+struct regset_info target_regsets[] = {
+  { PTRACE_GETREGS, PTRACE_SETREGS, 18 * 4,
+    GENERAL_REGS,
+    arm_fill_gregset, arm_store_gregset },
+#ifdef __IWMMXT__
+  { PTRACE_GETWMMXREGS, PTRACE_SETWMMXREGS, 16 * 8 + 6 * 4,
+    EXTENDED_REGS,
+    arm_fill_wmmxregset, arm_store_wmmxregset },
+#endif
+  { 0, 0, -1, -1, NULL, NULL }
+};
+
 struct linux_target_ops the_low_target = {
   arm_num_regs,
   arm_regmap,