1 /* Common target dependent code for GNU/Linux on ARM systems.
3 Copyright (C) 1999-2015 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #include "common-defs.h"
22 #include "arm-linux.h"
24 /* Calculate the offset from stack pointer of the pc register on the stack
25 in the case of a sigreturn or sigreturn_rt syscall. */
27 arm_linux_sigreturn_next_pc_offset (unsigned long sp
,
28 unsigned long sp_data
,
29 unsigned long svc_number
,
32 /* Offset of R0 register. */
34 /* Offset of PC register. */
39 if (sp_data
== ARM_NEW_SIGFRAME_MAGIC
)
40 r0_offset
= ARM_UCONTEXT_SIGCONTEXT
+ ARM_SIGCONTEXT_R0
;
42 r0_offset
= ARM_SIGCONTEXT_R0
;
46 if (sp_data
== sp
+ ARM_OLD_RT_SIGFRAME_SIGINFO
)
47 r0_offset
= ARM_OLD_RT_SIGFRAME_UCONTEXT
;
49 r0_offset
= ARM_NEW_RT_SIGFRAME_UCONTEXT
;
51 r0_offset
+= ARM_UCONTEXT_SIGCONTEXT
+ ARM_SIGCONTEXT_R0
;
54 pc_offset
= r0_offset
+ INT_REGISTER_SIZE
* ARM_PC_REGNUM
;