2011-09-02 Pedro Alves <pedro@codesourcery.com>

[deliverable/binutils-gdb.git] / gdb / alphanbsd-tdep.c

diff --git a/gdb/alphanbsd-tdep.c b/gdb/alphanbsd-tdep.c
index ca1ecffb326d68cde206ee80443b3d91c36e04f0..f6960c60d11761b10d21f5e09d7f633cf0789748 100644 (file)
--- a/gdb/alphanbsd-tdep.c
+++ b/gdb/alphanbsd-tdep.c
@@ -1,6 +1,7 @@
 /* Target-dependent code for NetBSD/alpha.
 
-   Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011
+   Free Software Foundation, Inc.
 
    Contributed by Wasabi Systems, Inc.
 
@@ -8,7 +9,7 @@
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -17,9 +18,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "frame.h"
@@ -36,6 +35,7 @@
 #include "alphabsd-tdep.h"
 #include "nbsd-tdep.h"
 #include "solib-svr4.h"
+#include "target.h"
 
 /* Core file support.  */
 
@@ -163,29 +163,23 @@ static struct regset alphanbsd_aout_gregset =
 /* Return the appropriate register set for the core section identified
    by SECT_NAME and SECT_SIZE.  */
 
-static const struct regset *
+const struct regset *
 alphanbsd_regset_from_core_section (struct gdbarch *gdbarch,
                                    const char *sect_name, size_t sect_size)
 {
   if (strcmp (sect_name, ".reg") == 0 && sect_size >= ALPHANBSD_SIZEOF_GREGS)
-    return &alphanbsd_gregset;
+    {
+      if (sect_size >= ALPHANBSD_SIZEOF_GREGS + ALPHANBSD_SIZEOF_FPREGS)
+       return &alphanbsd_aout_gregset;
+      else
+       return &alphanbsd_gregset;
+    }
 
   if (strcmp (sect_name, ".reg2") == 0 && sect_size >= ALPHANBSD_SIZEOF_FPREGS)
     return &alphanbsd_fpregset;
 
   return NULL;
 }
-
-static const struct regset *
-alphanbsd_aout_regset_from_core_section (struct gdbarch *gdbarch,
-                                        const char *sect_name,
-                                        size_t sect_size)
-{
-  if (strcmp (sect_name, ".reg") == 0 && sect_size >= ALPHANBSD_SIZEOF_GREGS)
-    return &alphanbsd_aout_gregset;
-
-  return NULL;
-}
 \f
 
 /* Signal trampolines.  */
@@ -216,14 +210,14 @@ static const unsigned char sigtramp_retcode[] =
 #define RETCODE_NWORDS         4
 #define RETCODE_SIZE           (RETCODE_NWORDS * 4)
 
-LONGEST
-alphanbsd_sigtramp_offset (CORE_ADDR pc)
+static LONGEST
+alphanbsd_sigtramp_offset (struct gdbarch *gdbarch, CORE_ADDR pc)
 {
   unsigned char ret[RETCODE_SIZE], w[4];
   LONGEST off;
   int i;
 
-  if (deprecated_read_memory_nobpt (pc, (char *) w, 4) != 0)
+  if (target_read_memory (pc, (char *) w, 4) != 0)
     return -1;
 
   for (i = 0; i < RETCODE_NWORDS; i++)
@@ -237,7 +231,7 @@ alphanbsd_sigtramp_offset (CORE_ADDR pc)
   off = i * 4;
   pc -= off;
 
-  if (deprecated_read_memory_nobpt (pc, (char *) ret, sizeof (ret)) != 0)
+  if (target_read_memory (pc, (char *) ret, sizeof (ret)) != 0)
     return -1;
 
   if (memcmp (ret, sigtramp_retcode, RETCODE_SIZE) == 0)
@@ -247,10 +241,11 @@ alphanbsd_sigtramp_offset (CORE_ADDR pc)
 }
 
 static int
-alphanbsd_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
+alphanbsd_pc_in_sigtramp (struct gdbarch *gdbarch,
+                         CORE_ADDR pc, char *func_name)
 {
   return (nbsd_pc_in_sigtramp (pc, func_name)
-         || alphanbsd_sigtramp_offset (pc) >= 0);
+         || alphanbsd_sigtramp_offset (gdbarch, pc) >= 0);
 }
 
 static CORE_ADDR
@@ -259,8 +254,11 @@ alphanbsd_sigcontext_addr (struct frame_info *frame)
   /* FIXME: This is not correct for all versions of NetBSD/alpha.
      We will probably need to disassemble the trampoline to figure
      out which trampoline frame type we have.  */
-  return get_frame_base (frame);
+  if (!get_next_frame (frame))
+    return 0;
+  return get_frame_base (get_next_frame (frame));
 }
+\f
 
 static void
 alphanbsd_init_abi (struct gdbarch_info info,
@@ -292,23 +290,13 @@ alphanbsd_init_abi (struct gdbarch_info info,
   set_gdbarch_regset_from_core_section
     (gdbarch, alphanbsd_regset_from_core_section);
 }
-
-static void
-alphanbsd_aout_init_abi (struct gdbarch_info info,
-                        struct gdbarch *gdbarch)
-{
-  alphanbsd_init_abi(info, gdbarch);
-
-  set_gdbarch_regset_from_core_section
-    (gdbarch, alphanbsd_aout_regset_from_core_section);
-}
 \f
 
 static enum gdb_osabi
 alphanbsd_core_osabi_sniffer (bfd *abfd)
 {
   if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
-    return GDB_OSABI_NETBSD_AOUT;
+    return GDB_OSABI_NETBSD_ELF;
 
   return GDB_OSABI_UNKNOWN;
 }
@@ -326,8 +314,4 @@ _initialize_alphanbsd_tdep (void)
 
   gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_NETBSD_ELF,
                           alphanbsd_init_abi);
-  gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_NETBSD_AOUT,
-                          alphanbsd_aout_init_abi);
-  gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_OPENBSD_ELF,
-                          alphanbsd_aout_init_abi);
 }