618f726fcb
gdb/ChangeLog: Update year range in copyright notice of all files.
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/* Common target dependent code for GNU/Linux on ARM systems.
|
|
|
|
Copyright (C) 1999-2016 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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "common-defs.h"
|
|
#include "arch/arm.h"
|
|
#include "arm-linux.h"
|
|
|
|
/* Calculate the offset from stack pointer of the pc register on the stack
|
|
in the case of a sigreturn or sigreturn_rt syscall. */
|
|
int
|
|
arm_linux_sigreturn_next_pc_offset (unsigned long sp,
|
|
unsigned long sp_data,
|
|
unsigned long svc_number,
|
|
int is_sigreturn)
|
|
{
|
|
/* Offset of R0 register. */
|
|
int r0_offset = 0;
|
|
/* Offset of PC register. */
|
|
int pc_offset = 0;
|
|
|
|
if (is_sigreturn)
|
|
{
|
|
if (sp_data == ARM_NEW_SIGFRAME_MAGIC)
|
|
r0_offset = ARM_UCONTEXT_SIGCONTEXT + ARM_SIGCONTEXT_R0;
|
|
else
|
|
r0_offset = ARM_SIGCONTEXT_R0;
|
|
}
|
|
else
|
|
{
|
|
if (sp_data == sp + ARM_OLD_RT_SIGFRAME_SIGINFO)
|
|
r0_offset = ARM_OLD_RT_SIGFRAME_UCONTEXT;
|
|
else
|
|
r0_offset = ARM_NEW_RT_SIGFRAME_UCONTEXT;
|
|
|
|
r0_offset += ARM_UCONTEXT_SIGCONTEXT + ARM_SIGCONTEXT_R0;
|
|
}
|
|
|
|
pc_offset = r0_offset + INT_REGISTER_SIZE * ARM_PC_REGNUM;
|
|
|
|
return pc_offset;
|
|
}
|