/* Target-dependent code for OpenBSD/vax.
- Copyright (C) 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2005-2015 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,
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 "arch-utils.h"
#include "vax-tdep.h"
-#include "gdb_string.h"
-
/* Signal trampolines. */
/* Since OpenBSD 3.2, the sigtramp routine is mapped at a random page
};
static int
-vaxobsd_sigtramp_p (struct frame_info *next_frame)
+vaxobsd_sigtramp_sniffer (const struct frame_unwind *self,
+ struct frame_info *this_frame,
+ void **this_cache)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
+ CORE_ADDR pc = get_frame_pc (this_frame);
CORE_ADDR start_pc = (pc & ~(vaxobsd_page_size - 1));
CORE_ADDR sigreturn_addr = start_pc + vaxobsd_sigreturn_offset;
gdb_byte *buf;
- char *name;
+ const char *name;
find_pc_partial_function (pc, &name, NULL, NULL);
if (name)
return 0;
buf = alloca(sizeof vaxobsd_sigreturn);
- if (!safe_frame_unwind_memory (next_frame, sigreturn_addr,
+ if (!safe_frame_unwind_memory (this_frame, sigreturn_addr,
buf, sizeof vaxobsd_sigreturn))
return 0;
}
static struct trad_frame_cache *
-vaxobsd_sigtramp_frame_cache (struct frame_info *next_frame, void **this_cache)
+vaxobsd_sigtramp_frame_cache (struct frame_info *this_frame, void **this_cache)
{
struct trad_frame_cache *cache;
CORE_ADDR addr, base, func;
if (*this_cache)
return *this_cache;
- cache = trad_frame_cache_zalloc (next_frame);
+ cache = trad_frame_cache_zalloc (this_frame);
*this_cache = cache;
- func = frame_pc_unwind (next_frame);
+ func = get_frame_pc (this_frame);
func &= ~(vaxobsd_page_size - 1);
- base = frame_unwind_register_unsigned (next_frame, VAX_SP_REGNUM);
- addr = get_frame_memory_unsigned (next_frame, base - 4, 4);
+ base = get_frame_register_unsigned (this_frame, VAX_SP_REGNUM);
+ addr = get_frame_memory_unsigned (this_frame, base - 4, 4);
trad_frame_set_reg_addr (cache, VAX_SP_REGNUM, addr + 8);
trad_frame_set_reg_addr (cache, VAX_FP_REGNUM, addr + 12);
}
static void
-vaxobsd_sigtramp_frame_this_id (struct frame_info *next_frame,
+vaxobsd_sigtramp_frame_this_id (struct frame_info *this_frame,
void **this_cache, struct frame_id *this_id)
{
struct trad_frame_cache *cache =
- vaxobsd_sigtramp_frame_cache (next_frame, this_cache);
+ vaxobsd_sigtramp_frame_cache (this_frame, this_cache);
trad_frame_get_id (cache, this_id);
}
-static void
-vaxobsd_sigtramp_frame_prev_register (struct frame_info *next_frame,
- void **this_cache, int regnum,
- int *optimizedp, enum lval_type *lvalp,
- CORE_ADDR *addrp, int *realnump,
- gdb_byte *valuep)
+static struct value *
+vaxobsd_sigtramp_frame_prev_register (struct frame_info *this_frame,
+ void **this_cache, int regnum)
{
struct trad_frame_cache *cache =
- vaxobsd_sigtramp_frame_cache (next_frame, this_cache);
+ vaxobsd_sigtramp_frame_cache (this_frame, this_cache);
- trad_frame_get_register (cache, next_frame, regnum,
- optimizedp, lvalp, addrp, realnump, valuep);
+ return trad_frame_get_register (cache, this_frame, regnum);
}
static const struct frame_unwind vaxobsd_sigtramp_frame_unwind = {
SIGTRAMP_FRAME,
+ default_frame_unwind_stop_reason,
vaxobsd_sigtramp_frame_this_id,
- vaxobsd_sigtramp_frame_prev_register
+ vaxobsd_sigtramp_frame_prev_register,
+ NULL,
+ vaxobsd_sigtramp_sniffer
};
-
-static const struct frame_unwind *
-vaxobsd_sigtramp_frame_sniffer (struct frame_info *next_frame)
-{
- if (vaxobsd_sigtramp_p (next_frame))
- return &vaxobsd_sigtramp_frame_unwind;
-
- return NULL;
-}
\f
/* OpenBSD a.out. */
static void
vaxobsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
- frame_unwind_append_sniffer (gdbarch, vaxobsd_sigtramp_frame_sniffer);
+ frame_unwind_append_unwinder (gdbarch, &vaxobsd_sigtramp_frame_unwind);
}
/* FIXME: kettenis/20050821: Since OpenBSD/vax binaries are