mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
88 lines
3.3 KiB
C
88 lines
3.3 KiB
C
/* Target-dependent code for the IA-64 for GDB, the GNU debugger.
|
|
Copyright 2000
|
|
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"
|
|
#include "arch-utils.h"
|
|
|
|
/* The sigtramp code is in a non-readable (executable-only) region
|
|
of memory called the ``gate page''. The addresses in question
|
|
were determined by examining the system headers. They are
|
|
overly generous to allow for different pages sizes. */
|
|
|
|
#define GATE_AREA_START 0xa000000000000100LL
|
|
#define GATE_AREA_END 0xa000000000010000LL
|
|
|
|
/* Offset to sigcontext structure from frame of handler */
|
|
#define IA64_LINUX_SIGCONTEXT_OFFSET 192
|
|
|
|
int
|
|
ia64_linux_in_sigtramp (CORE_ADDR pc, char *func_name)
|
|
{
|
|
return (pc >= (CORE_ADDR) GATE_AREA_START && pc < (CORE_ADDR) GATE_AREA_END);
|
|
}
|
|
|
|
/* IA-64 GNU/Linux 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 the
|
|
sigcontext structure. */
|
|
|
|
CORE_ADDR
|
|
ia64_linux_sigcontext_register_address (CORE_ADDR sp, int regno)
|
|
{
|
|
if (IA64_GR0_REGNUM <= regno && regno <= IA64_GR31_REGNUM)
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 200 + 8 * (regno - IA64_GR0_REGNUM);
|
|
else if (IA64_BR0_REGNUM <= regno && regno <= IA64_BR7_REGNUM)
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 136 + 8 * (regno - IA64_BR0_REGNUM);
|
|
else if (IA64_FR0_REGNUM <= regno && regno <= IA64_FR127_REGNUM)
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 464 + 16 * (regno - IA64_FR0_REGNUM);
|
|
else
|
|
switch (regno)
|
|
{
|
|
case IA64_IP_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 40;
|
|
case IA64_CFM_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 48;
|
|
case IA64_PSR_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 56; /* user mask only */
|
|
/* sc_ar_rsc is provided, from which we could compute bspstore, but
|
|
I don't think it's worth it. Anyway, if we want it, it's at offset
|
|
64 */
|
|
case IA64_BSP_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 72;
|
|
case IA64_RNAT_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 80;
|
|
case IA64_CCV_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 88;
|
|
case IA64_UNAT_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 96;
|
|
case IA64_FPSR_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 104;
|
|
case IA64_PFS_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 112;
|
|
case IA64_LC_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 120;
|
|
case IA64_PR_REGNUM :
|
|
return sp + IA64_LINUX_SIGCONTEXT_OFFSET + 128;
|
|
default :
|
|
return 0;
|
|
}
|
|
}
|