misc/sys/ptrace.h

   1 /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #ifndef _PTRACE_H
  20
  21 #define _PTRACE_H       1
  22 #include <features.h>
  23
  24 __BEGIN_DECLS
  25
  26
  27 /* Type of the REQUEST argument to `ptrace.'  */
  28 enum __ptrace_request
  29 {
  30   /* Indicate that the process making this request should be traced.
  31      All signals received by this process can be intercepted by its
  32      parent, and its parent can use the other `ptrace' requests.  */
  33   PTRACE_TRACEME = 0,
  34 #define PT_TRACE_ME PTRACE_TRACEME
  35
  36   /* Return the word in the process's text space at address ADDR.  */
  37   PTRACE_PEEKTEXT,
  38 #define PT_READ_I PTRACE_PEEKTEXT
  39
  40   /* Return the word in the process's data space at address ADDR.  */
  41   PTRACE_PEEKDATA,
  42 #define PT_READ_D PTRACE_PEEKDATA
  43
  44   /* Return the word in the process's user area at offset ADDR.  */
  45   PTRACE_PEEKUSER,
  46 #define PT_READ_U PTRACE_PEEKUSER
  47
  48   /* Write the word DATA into the process's text space at address ADDR.  */
  49   PTRACE_POKETEXT,
  50 #define PT_WRITE_I PTRACE_POKETEXT
  51
  52   /* Write the word DATA into the process's data space at address ADDR.  */
  53   PTRACE_POKEDATA,
  54 #define PT_WRITE_D PTRACE_POKEDATA
  55
  56   /* Write the word DATA into the process's user space at offset ADDR.  */
  57   PTRACE_POKEUSER,
  58 #define PT_WRITE_U PTRACE_POKEUSER
  59
  60   /* Continue the process.  */
  61   PTRACE_CONT,
  62 #define PT_CONTINUE PTRACE_CONT
  63
  64   /* Kill the process.  */
  65   PTRACE_KILL,
  66 #define PT_KILL PTRACE_KILL
  67
  68   /* Single step the process.
  69      This is not supported on all machines.  */
  70   PTRACE_SINGLESTEP,
  71 #define PT_STEP PTRACE_SINGLESTEP
  72
  73   /* Attach to a process that is already running. */
  74   PTRACE_ATTACH,
  75 #define PT_ATTACH PTRACE_ATTACH
  76
  77   /* Detach from a process attached to with PTRACE_ATTACH.  */
  78   PTRACE_DETACH,
  79 #define PT_DETACH PTRACE_DETACH
  80
  81   /* Get the process's registers (not including floating-point registers)
  82      and put them in the `struct regs' (see <machine/regs.h>) at ADDR.  */
  83   PTRACE_GETREGS = 12,
  84
  85   /* Set the process's registers (not including floating-point registers)
  86      to the contents of the `struct regs' (see <machine/regs.h>) at ADDR.  */
  87   PTRACE_SETREGS,
  88
  89   /* Get the process's floating point registers and put them
  90      in the `struct fp_status' (see <machine/regs.h>) at ADDR.  */
  91   PTRACE_GETFPREGS = 14,
  92
  93   /* Set the process's floating point registers to the contents
  94      of the `struct fp_status' (see <machine/regs.h>) at ADDR.  */
  95   PTRACE_SETFPREGS,
  96
  97   /* Read DATA bytes from the process's data space at address ADDR.
  98      Put the result starting at address ADDR2 in the caller's
  99      address space.  */
 100   PTRACE_READDATA = 16,
 101
 102   /* Write DATA bytes from ADDR2 in the caller's address space into
 103      the process's data space at address ADDR.  */
 104   PTRACE_WRITEDATA,
 105
 106   /* Read DATA bytes from the process's text space at address ADDR.
 107      Put the result starting at address ADDR2 in the caller's
 108      address space.  */
 109   PTRACE_READTEXT = 18,
 110
 111   /* Write DATA bytes from ADDR2 in the caller's address space into
 112      the process's text space at address ADDR.  */
 113   PTRACE_WRITETEXT,
 114
 115   /* Read the floating-point accelerator unit registers and
 116      put them into the `struct fpa_regs' (see <machine/regs.h>) at ADDR.  */
 117   PTRACE_GETFPAREGS = 20,
 118
 119   /* Write the floating-point accelerator unit registers from
 120      the contents of the `struct fpa_regs' at ADDR.  */
 121   PTRACE_SETFPAREGS,
 122 };
 123
 124 /* Perform process tracing functions.  REQUEST is one of the values
 125    above, and determines the action to be taken.
 126    For all requests except PTRACE_TRACEME, PID specifies the process to be
 127    traced.
 128
 129    PID and the other arguments described above for the various requests should
 130    appear (those that are used for the particular request) as:
 131      pid_t PID, void *ADDR, int DATA, void *ADDR2
 132    after REQUEST.  */
 133 extern int ptrace __P ((enum __ptrace_request __request __DOTS));
 134
 135 __END_DECLS
 136
 137 #endif /* ptrace.h */