mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-31 22:10:34 +03:00
87b9b50f0d
ptrace call to get the ieee_instruction_pointer from the kernel. * sysdeps/s390/fpu/fesetenv.c (fesetenv): Remove PTRACE_POKEUSER ptrace call to set the ieee_instructtion_pointer. * sysdeps/unix/sysv/linux/s390/sys/user.h (struct _user_regs_struct): Add comment that ieee_instruction_pointer is always 0.
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
/* Copyright (C) 2000,2008 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#ifndef _SYS_USER_H
|
|
#define _SYS_USER_H 1
|
|
|
|
/* The whole purpose of this file is for GDB and GDB only. Don't read
|
|
too much into it. Don't use it for anything other than GDB unless
|
|
you know what you are doing. */
|
|
|
|
struct _user_psw_struct
|
|
{
|
|
unsigned long mask;
|
|
unsigned long addr;
|
|
};
|
|
|
|
struct _user_fpregs_struct
|
|
{
|
|
unsigned int fpc;
|
|
double fprs[16];
|
|
};
|
|
|
|
struct _user_per_struct
|
|
{
|
|
unsigned long control_regs[3];
|
|
unsigned single_step : 1;
|
|
unsigned instruction_fetch : 1;
|
|
unsigned : 30;
|
|
unsigned long starting_addr;
|
|
unsigned long ending_addr;
|
|
unsigned short perc_atmid;
|
|
unsigned long address;
|
|
unsigned char access_id;
|
|
};
|
|
|
|
struct _user_regs_struct
|
|
{
|
|
struct _user_psw_struct psw; /* Program status word. */
|
|
unsigned long gprs[16]; /* General purpose registers. */
|
|
unsigned int acrs[16]; /* Access registers. */
|
|
unsigned long orig_gpr2; /* Original gpr2. */
|
|
struct _user_fpregs_struct fp_regs; /* Floating point registers. */
|
|
struct _user_per_struct per_info; /* Hardware tracing registers. */
|
|
unsigned long ieee_instruction_pointer; /* Always 0. */
|
|
};
|
|
|
|
struct user {
|
|
struct _user_regs_struct regs; /* User registers. */
|
|
unsigned long int u_tsize; /* Text segment size (pages). */
|
|
unsigned long int u_dsize; /* Data segment size (pages). */
|
|
unsigned long int u_ssize; /* Stack segment size (pages). */
|
|
unsigned long start_code; /* Starting address of text. */
|
|
unsigned long start_stack; /* Starting address of stack area. */
|
|
long int signal; /* Signal causing the core dump. */
|
|
struct _user_regs_struct *u_ar0; /* Help gdb find registers. */
|
|
unsigned long magic; /* Identifies a core file. */
|
|
char u_comm[32]; /* User command naem. */
|
|
};
|
|
|
|
#define PAGE_SHIFT 12
|
|
#define PAGE_SIZE (1UL << PAGE_SHIFT)
|
|
#define PAGE_MASK (~(PAGE_SIZE-1))
|
|
#define NBPG PAGE_SIZE
|
|
#define UPAGES 1
|
|
#define HOST_TEXT_START_ADDR (u.start_code)
|
|
#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
|
|
|
|
#endif /* _SYS_USER_H */
|