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File Content: `debugreg.h`

/* Copyright (C) 2001-2012 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, see
   <http://www.gnu.org/licenses/>.  */

#ifndef _SYS_DEBUGREG_H
#define _SYS_DEBUGREG_H	1

/* Indicate the register numbers for a number of the specific
   debug registers.  Registers 0-3 contain the addresses we wish to trap on */
#define DR_FIRSTADDR 0        /* u_debugreg[DR_FIRSTADDR] */
#define DR_LASTADDR 3         /* u_debugreg[DR_LASTADDR]  */

#define DR_STATUS 6           /* u_debugreg[DR_STATUS]     */
#define DR_CONTROL 7          /* u_debugreg[DR_CONTROL] */

/* Define a few things for the status register.  We can use this to determine
   which debugging register was responsible for the trap.  The other bits
   are either reserved or not of interest to us. */

#define DR_TRAP0	(0x1)		/* db0 */
#define DR_TRAP1	(0x2)		/* db1 */
#define DR_TRAP2	(0x4)		/* db2 */
#define DR_TRAP3	(0x8)		/* db3 */

#define DR_STEP		(0x4000)	/* single-step */
#define DR_SWITCH	(0x8000)	/* task switch */

/* Now define a bunch of things for manipulating the control register.
   The top two bytes of the control register consist of 4 fields of 4
   bits - each field corresponds to one of the four debug registers,
   and indicates what types of access we trap on, and how large the data
   field is that we are looking at */

#define DR_CONTROL_SHIFT 16   /* Skip this many bits in ctl register */
#define DR_CONTROL_SIZE  4    /* 4 control bits per register */

#define DR_RW_EXECUTE	(0x0) /* Settings for the access types to trap on */
#define DR_RW_WRITE	(0x1)
#define DR_RW_READ	(0x3)

#define DR_LEN_1 (0x0)	      /* Settings for data length to trap on */
#define DR_LEN_2 (0x4)
#define DR_LEN_4 (0xC)
#ifdef __x86_64__
# define DR_LEN_8 (0x8)
#endif

/* The low byte to the control register determine which registers are
   enabled.  There are 4 fields of two bits.  One bit is "local", meaning
   that the processor will reset the bit after a task switch and the other
   is global meaning that we have to explicitly reset the bit.  With linux,
   you can use either one, since we explicitly zero the register when we enter
   kernel mode. */

#define DR_LOCAL_ENABLE_SHIFT  0   /* Extra shift to the local enable bit */
#define DR_GLOBAL_ENABLE_SHIFT 1   /* Extra shift to the global enable bit */
#define DR_ENABLE_SIZE	       2   /* 2 enable bits per register */

#define DR_LOCAL_ENABLE_MASK  (0x55) /* Set  local bits for all 4 regs */
#define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */

/* The second byte to the control register has a few special
   things.  */



#ifdef __x86_64__
# define DR_CONTROL_RESERVED (0xFFFFFFFF0000FC00ULL) /* Reserved */
#else
# define DR_CONTROL_RESERVED (0x00FC00U) /* Reserved */
#endif
#define DR_LOCAL_SLOWDOWN   (0x100)  /* Local slow the pipeline */
#define DR_GLOBAL_SLOWDOWN  (0x200)  /* Global slow the pipeline */

#endif	/* sys/debugreg.h */

Name	Size	Permission
acct.h	3331 bytes	0644
auxv.h	1249 bytes	0644
bitypes.h	86 bytes	0644
cdefs.h	14738 bytes	0644
debugreg.h	3575 bytes	0644
dir.h	922 bytes	0644
elf.h	1023 bytes	0644
epoll.h	4448 bytes	0644
errno.h	19 bytes	0644
eventfd.h	1390 bytes	0644
fanotify.h	1286 bytes	0644
fcntl.h	19 bytes	0644
file.h	1689 bytes	0644
fsuid.h	1200 bytes	0644
gmon.h	6109 bytes	0644
gmon_out.h	2636 bytes	0644
inotify.h	3837 bytes	0644
io.h	5085 bytes	0644
ioctl.h	1758 bytes	0644
ipc.h	1642 bytes	0644
kd.h	1118 bytes	0644
kdaemon.h	1101 bytes	0644
klog.h	1204 bytes	0644
mman.h	5566 bytes	0644
mount.h	5637 bytes	0644
msg.h	2407 bytes	0644
mtio.h	11163 bytes	0644
param.h	3030 bytes	0644
pci.h	917 bytes	0644
perm.h	1133 bytes	0644
personality.h	2620 bytes	0644
poll.h	2636 bytes	0644
prctl.h	1059 bytes	0644
procfs.h	4971 bytes	0644
profil.h	1953 bytes	0644
ptrace.h	6772 bytes	0644
queue.h	19539 bytes	0644
quota.h	7903 bytes	0644
raw.h	1176 bytes	0644
reboot.h	1632 bytes	0644
reg.h	1826 bytes	0644
resource.h	3671 bytes	0644
sdt-config.h	276 bytes	0644
sdt.h	18600 bytes	0644
select.h	4205 bytes	0644
sem.h	2057 bytes	0644
sendfile.h	1816 bytes	0644
shm.h	1900 bytes	0644
signal.h	20 bytes	0644
signalfd.h	1610 bytes	0644
socket.h	10483 bytes	0644
socketvar.h	141 bytes	0644
soundcard.h	29 bytes	0644
stat.h	16621 bytes	0644
statfs.h	2105 bytes	0644
statvfs.h	2838 bytes	0644
swap.h	1611 bytes	0644
syscall.h	1348 bytes	0644
sysctl.h	2023 bytes	0644
sysinfo.h	1524 bytes	0644
syslog.h	7701 bytes	0644
sysmacros.h	2553 bytes	0644
termios.h	74 bytes	0644
time.h	6697 bytes	0644
timeb.h	1399 bytes	0644
timerfd.h	1736 bytes	0644
times.h	1625 bytes	0644
timex.h	2193 bytes	0644
ttychars.h	2499 bytes	0644
ttydefaults.h	3568 bytes	0644
types.h	6771 bytes	0644
ucontext.h	5385 bytes	0644
uio.h	4718 bytes	0644
ultrasound.h	30 bytes	0644
un.h	1465 bytes	0644
unistd.h	20 bytes	0644
user.h	5207 bytes	0644
ustat.h	1147 bytes	0644
utsname.h	2495 bytes	0644
vfs.h	161 bytes	0644
vlimit.h	1892 bytes	0644
vm86.h	1198 bytes	0644
vt.h	22 bytes	0644
vtimes.h	2475 bytes	0644
wait.h	6595 bytes	0644
xattr.h	4236 bytes	0644

File Content: debugreg.h

File Content: `debugreg.h`