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authorRoland McGrath <roland@gnu.org>1996-01-17 17:13:48 +0000
committerRoland McGrath <roland@gnu.org>1996-01-17 17:13:48 +0000
commit93995795744ce21cd6c19f183d3b7cf010936477 (patch)
treec11f7cf914f247d8150a2578888c57a6cf952791 /sysdeps/unix/sysv/linux/ptrace.c
parent6f0017d1cd3c61bd57934d1ec1e4c66083a499e2 (diff)
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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.c45
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;
+}