* sparc-tdep.h (struct regset): Provide opaque declaration.

(struct gdbarch_tdep): Add gregset, sizeof_gregset,
fpregset and sizeof_fpregset members.
* sparc-tdep.c (struct regset): Provide opaque declaration.
(sparc_regset_from_core_section): New function.
(sparc32_gdbarch_init): Initialize TDEP->gregset,
TDEP->sizeof_gregset, TDEP->fpregset and TDEP->sizeof_fpregset.
Set regset_from_core_section when appropriate.

3 files changed, 48 insertions, 0 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 929fe9b..2f026c3 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,14 @@
+2004-01-11  Mark Kettenis  <kettenis@gnu.org>
+
+	* sparc-tdep.h (struct regset): Provide opaque declaration.
+	(struct gdbarch_tdep): Add gregset, sizeof_gregset,
+	fpregset and sizeof_fpregset members.
+	* sparc-tdep.c (struct regset): Provide opaque declaration.
+	(sparc_regset_from_core_section): New function.
+	(sparc32_gdbarch_init): Initialize TDEP->gregset,
+	TDEP->sizeof_gregset, TDEP->fpregset and TDEP->sizeof_fpregset.
+	Set regset_from_core_section when appropriate.
+
 2004-01-10  Mark Kettenis  <kettenis@gnu.org>
 
 	* x86-64-tdep.c (amd64_non_pod_p): New function.
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 92684a3..26d2c24 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -41,6 +41,8 @@
 
 #include "sparc-tdep.h"
 
+struct regset;
+
 /* This file implements the The SPARC 32-bit ABI as defined by the
    section "Low-Level System Information" of the SPARC Compliance
    Definition (SCD) 2.4.1, which is the 32-bit System V psABI for
@@ -1004,6 +1006,25 @@ sparc_stabs_unglobalize_name (char *name)
 }
 
 
+/* Return the appropriate register set for the core section identified
+   by SECT_NAME and SECT_SIZE.  */
+
+const struct regset *
+sparc_regset_from_core_section (struct gdbarch *gdbarch,
+				const char *sect_name, size_t sect_size)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  if (strcmp (sect_name, ".reg") == 0 && sect_size == tdep->sizeof_gregset)
+    return tdep->gregset;
+
+  if (strcmp (sect_name, ".reg2") == 0 && sect_size == tdep->sizeof_fpregset)
+    return tdep->fpregset;
+
+  return NULL;
+}
+
+
 static struct gdbarch *
 sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 {
@@ -1021,6 +1042,10 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   tdep->pc_regnum = SPARC32_PC_REGNUM;
   tdep->npc_regnum = SPARC32_NPC_REGNUM;
+  tdep->gregset = NULL;
+  tdep->sizeof_gregset = 20 * 4;
+  tdep->fpregset = NULL;
+  tdep->sizeof_fpregset = 33 * 4;
   tdep->plt_entry_size = 0;
 
   set_gdbarch_long_double_bit (gdbarch, 128);
@@ -1074,6 +1099,11 @@ sparc32_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   frame_unwind_append_sniffer (gdbarch, sparc32_frame_sniffer);
 
+  /* If we have register sets, enable the generic core file support.  */
+  if (tdep->gregset && tdep->fpregset)
+    set_gdbarch_regset_from_core_section (gdbarch,
+					  sparc_regset_from_core_section);
+
   return gdbarch;
 }
 
diff --git a/gdb/sparc-tdep.h b/gdb/sparc-tdep.h
index 05f2e36..fc239d3 100644
--- a/gdb/sparc-tdep.h
+++ b/gdb/sparc-tdep.h
@@ -24,6 +24,7 @@
 
 struct gdbarch;
 struct regcache;
+struct regset;
 struct trad_frame_saved_reg;
 
 /* Register offsets for the general-purpose register set.  */
@@ -51,6 +52,12 @@ struct gdbarch_tdep
   int pc_regnum;
   int npc_regnum;
 
+  /* Register sets.  */
+  struct regset *gregset;
+  size_t sizeof_gregset;
+  struct regset *fpregset;
+  size_t sizeof_fpregset;
+
   /* Offset of saved PC in jmp_buf.  */
   int jb_pc_offset;