+++ /dev/null
-/* Target-dependent code for the IA-64 for GDB, the GNU debugger.
- Copyright 2000, 2001
- 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
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- 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. */
-
-#include "defs.h"
-
-/* External hook for finding gate addresses on AIX. */
-void (*aix5_find_gate_addresses_hook) (CORE_ADDR *, CORE_ADDR *) = 0;
-
-/* Offset to sc_context member of sigcontext structure from frame of handler */
-#define IA64_AIX_SIGCONTEXT_OFFSET 64
-
-/* Return a non-zero value iff PC is in a signal trampoline. On
- AIX, we determine this by seeing if the pc is in a special
- execute only page called the ``gate page''. The addresses in
- question are determined by letting the AIX native portion of
- the code determine these addresses via its own nefarious
- means. */
-
-int
-ia64_aix_in_sigtramp (CORE_ADDR pc, char *func_name)
-{
- CORE_ADDR gate_area_start, gate_area_end;
-
- if (aix5_find_gate_addresses_hook == 0)
- return 0;
-
- (*aix5_find_gate_addresses_hook) (&gate_area_start, &gate_area_end);
-
- return (pc >= gate_area_start && pc < gate_area_end);
-}
-
-
-/* IA-64 AIX specific function which, given a frame address and
- a register number, returns the address at which that register may be
- found. 0 is returned for registers which aren't stored in the
- sigcontext structure. */
-
-CORE_ADDR
-ia64_aix_sigcontext_register_address (CORE_ADDR sp, int regno)
-{
- /* The hardcoded offsets that follow are actually offsets to the
- corresponding members in struct __context in
- /usr/include/sys/context.h (on an IA-64 AIX5 box). */
- if (IA64_GR0_REGNUM <= regno && regno <= IA64_GR31_REGNUM)
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 152 + 8 * (regno - IA64_GR0_REGNUM);
- else if (IA64_BR0_REGNUM <= regno && regno <= IA64_BR7_REGNUM)
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 408 + 8 * (regno - IA64_BR0_REGNUM);
- else if (IA64_FR0_REGNUM <= regno && regno <= IA64_FR127_REGNUM)
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 480 + 16 * (regno - IA64_FR0_REGNUM);
- else
- switch (regno)
- {
- case IA64_PSR_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 0;
- case IA64_IP_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 8;
- /* iipa is at 16.
- isr is at 24.
- ifa is at 32.
- iim is at 40. */
- case IA64_CFM_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 48; /* ifs, actually */
- case IA64_RSC_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 56;
- case IA64_BSP_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 64;
- case IA64_BSPSTORE_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 72;
- case IA64_RNAT_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 80;
- case IA64_PFS_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 88;
- case IA64_UNAT_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 96;
- case IA64_PR_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 104;
- case IA64_CCV_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 112;
- case IA64_LC_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 120;
- case IA64_EC_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 128;
- /* nats is at 136; this is an address independent NaT bitmask */
- case IA64_FPSR_REGNUM :
- return sp + IA64_AIX_SIGCONTEXT_OFFSET + 144;
- default :
- return 0;
- }
-}