diff options
| author | Roland McGrath <roland@gnu.org> | 1996-01-17 17:13:48 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1996-01-17 17:13:48 +0000 |
| commit | 93995795744ce21cd6c19f183d3b7cf010936477 (patch) | |
| tree | c11f7cf914f247d8150a2578888c57a6cf952791 /sysdeps/unix/sysv/linux/ptrace.c | |
| parent | 6f0017d1cd3c61bd57934d1ec1e4c66083a499e2 (diff) | |
Sun Jan 14 01:01:10 1996 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/mips/bytesex.h: Add default byte sex. By Ralf Baechle.
* sysdeps/unix/sysv/linux/adjtime.c [! MOD_OFFSET]: Use `mode'
member of `struct timex' instead of `modes'. From Andreas Schwab.
* sysdeps/unix/sysv/linux/mknod.c: New file. Generic C version.
* sysdeps/unix/sysv/linux/i386/mknod.S: Remove assembler version.
* sysdeps/unix/sysv/linux/Makefile (inhibit-glue): New variable.
[$(subdir) = misc] (sysdep_routines): Add mount, umount, and s_ptrace.
[$(subdir) = misc] (headers): Append sys/mount.h.
* sysdeps/unix/sysv/linux/mount.S, sysdeps/unix/sysv/linux/umount.S:
New files. Implement system calls.
* sysdeps/unix/sysv/linux/sys/mount.h: New header file.
* sysdeps/unix/sysv/linux/ptrace.c: New file. Wrapper around
ptrace system call.
* sysdeps/unix/sysv/linux/s_ptrace.S: New file: ptrace system call.
* sysdeps/unix/sysv/linux/i386/gnu/types.h: New file with correct
types for i386/Linux.
Sun Jan 14 01:01:10 1996 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* sysdeps/mips/bytesex.h: Add default byte sex. By Ralf Baechle.
* sysdeps/unix/sysv/linux/adjtime.c [! MOD_OFFSET]: Use `mode'
member of `struct timex' instead of `modes'. From Andreas Schwab.
* sysdeps/unix/sysv/linux/mknod.c: New file. Generic C version.
* sysdeps/unix/sysv/linux/i386/mknod.S: Remove assembler version.
* sysdeps/unix/sysv/linux/Makefile (inhibit-glue): New variable.
[$(subdir) = misc] (sysdep_routines): Add mount, umount, and s_ptrace.
[$(subdir) = misc] (headers): Append sys/mount.h.
* sysdeps/unix/sysv/linux/mount.S, sysdeps/unix/sysv/linux/umount.S:
New files. Implement system calls.
* sysdeps/unix/sysv/linux/sys/mount.h: New header file.
* sysdeps/unix/sysv/linux/ptrace.c: New file. Wrapper around
ptrace system call.
* sysdeps/unix/sysv/linux/s_ptrace.S: New file: ptrace system call.
* sysdeps/unix/sysv/linux/i386/gnu/types.h: New file with correct
types for i386/Linux.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ptrace.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ptrace.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ptrace.c b/sysdeps/unix/sysv/linux/ptrace.c new file mode 100644 index 0000000000..2c04830c42 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ptrace.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1995, 1996 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <sys/ptrace.h> +#include <sys/syscall.h> + +int +ptrace (int request, int pid, int addr, int data) +{ + long int ret; + long int res; + if (request > 0 && request < 4) + (long int *) data = &ret; + + res = __syscall_ptrace (request, pid, addr, data); + + if (res >= 0) + { + if (request > 0 && request < 4) + { + errno = 0; + return (ret); + } + return (int) res; + } + + errno = -res; + return -1; +} |