X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Fi386bsd-tdep.c;h=1816e12f6b70933f1a5737769079f079a9129d3f;hb=8ea5bce59057ef1906bf1180843c0900b191dcab;hp=67d09ee14d74aa207d13038da628fb72ac767c41;hpb=f6943e4a1d18d45ef98400032e606499209710ee;p=binutils-gdb.git

diff --git a/gdb/i386bsd-tdep.c b/gdb/i386bsd-tdep.c
index 67d09ee14d7..1816e12f6b7 100644
--- a/gdb/i386bsd-tdep.c
+++ b/gdb/i386bsd-tdep.c
@@ -1,12 +1,13 @@
 /* Target-dependent code for i386 BSD's.
 
-   Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    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,
@@ -15,9 +16,7 @@
    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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "arch-utils.h"
@@ -32,58 +31,26 @@
 
 /* Support for signal handlers.  */
 
-/* Return whether PC is in a BSD sigtramp routine.  */
-
-static int
-i386bsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
-{
-  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
-
-  return (pc >= tdep->sigtramp_start && pc < tdep->sigtramp_end);
-}
-
-/* Assuming NEXT_FRAME is for a frame following a BSD sigtramp
-   routine, return the address of the associated sigcontext structure.  */
+/* Assuming THIS_FRAME is for a BSD sigtramp routine, return the
+   address of the associated sigcontext structure.  */
 
 static CORE_ADDR
-i386bsd_sigcontext_addr (struct frame_info *next_frame)
+i386bsd_sigcontext_addr (struct frame_info *this_frame)
 {
-  char buf[4];
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  gdb_byte buf[4];
   CORE_ADDR sp;
 
-  frame_unwind_register (next_frame, I386_ESP_REGNUM, buf);
-  sp = extract_unsigned_integer (buf, 4);
-
-  return read_memory_unsigned_integer (sp + 8, 4);
-}
-
-/* Return the start address of the sigtramp routine.  */
-
-CORE_ADDR
-i386bsd_sigtramp_start (CORE_ADDR pc)
-{
-  return gdbarch_tdep (current_gdbarch)->sigtramp_start;
-}
-
-/* Return the end address of the sigtramp routine.  */
+  get_frame_register (this_frame, I386_ESP_REGNUM, buf);
+  sp = extract_unsigned_integer (buf, 4, byte_order);
 
-CORE_ADDR
-i386bsd_sigtramp_end (CORE_ADDR pc)
-{
-  return gdbarch_tdep (current_gdbarch)->sigtramp_end;
+  return read_memory_unsigned_integer (sp + 8, 4, byte_order);
 }
 
 
 /* Support for shared libraries.  */
 
-/* Return non-zero if we are in a shared library trampoline code stub.  */
-
-int
-i386bsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
-{
-  return (name && !strcmp (name, "_DYNAMIC"));
-}
-
 /* Traditional BSD (4.3 BSD, still used for BSDI and 386BSD).  */
 
 /* From <machine/signal.h>.  */
@@ -112,16 +79,6 @@ i386bsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
-  set_gdbarch_pc_in_sigtramp (gdbarch, i386bsd_pc_in_sigtramp);
-
-  /* Allow the recognition of sigtramps as a function named <sigtramp>.  */
-  set_gdbarch_sigtramp_start (gdbarch, i386bsd_sigtramp_start);
-  set_gdbarch_sigtramp_end (gdbarch, i386bsd_sigtramp_end);
-
-  /* Assume SunOS-style shared libraries.  */
-  set_gdbarch_in_solib_call_trampoline (gdbarch,
-					i386bsd_aout_in_solib_call_trampoline);
-
   tdep->jb_pc_offset = 0;
 
   tdep->sigtramp_start = 0xfdbfdfc0;
@@ -163,8 +120,7 @@ _initialize_i386bsd_tdep (void)
   gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_aout_flavour,
 				  i386bsd_aout_osabi_sniffer);
 
-  /* BFD doesn't set the architecture for NetBSD style a.out core
-     files.  */
-  gdbarch_register_osabi_sniffer (bfd_arch_unknown, bfd_target_unknown_flavour,
+  /* BFD doesn't set a flavour for NetBSD style a.out core files.  */
+  gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_unknown_flavour,
 				  i386bsd_core_osabi_sniffer);
 }