-========================================================================
-This is the unmodified README from Branko Lankester's release of strace
-for Linux. Some of the notes and instructions are no longer valid
-however the file has been retained for its historical value. -- jrs
-========================================================================
-This is the second release of strace for linux, it requires linux
-version 0.99.10 or newer. strace was written by Paul Kranenburg for
-SunOS, I have modified it to work with linux. Read the file README and
-the strace.1 for more info on strace.
+Strace has been ported by Branko Lankester <branko@hacktic.nl>
+to run on Linux systems. Since then it has been greatly modified
+by various other people.
+If you want to compile strace on a Linux system please make sure that
+you use recent kernel headers. Strace needs those to get the proper data
+structures and constatns used by the kernel, since these can be
+different from the structures that the C library uses. Currently you
+will need at least a 2.2.7 or newer kernel.
-Changes for this release are:
-- bugfixes
-- support for new system calls and ioctls
-- symbolic output for: termio ioctls, sysv ipc, fcntl file locking,
- statfs and ptrace
-- microsecond time stamps
+To complicate things a bit further strace might not compile if you are
+using development kernels. These tend to have headers that conflict with
+the headers from libc which makes it impossible to use them.
-A lot of the changes and bugfixes for this version were done by
-Rick Sladkey <jrs@world.std.com>, System V IPC support was added
-by Ulrich Pegelow <pegelow@moorea.uni-muenster.de>.
+There are three ways to compile strace with other kernel headers:
+* Specify the location in CFLAGS when running configure
+ CFLAGS=-I/usr/src/linux/include ./configure
-FILES:
+* you can tell make where your kernel sources are. For example if you
+ have your kernelsource in /usr/src/linux, you can invoke make like
+ this:
-README.first this file
-README the original readme file for SunOS strace
-getioctls script to create the ioctlents.h file for linux.
-Sun/* files from the original package I didn't use
+ make CFLAGS="\$CFLAGS -I/usr/src/linux/include"
+ (the extra \$CFLAGS is there to make sure we don't override any CFLAGS
+ settings that configure has found).
-Notes:
+* you can link /usr/include/linux and /usr/include/asm to the
+ corresponding directories in your kernel source-tree.
-- With older versions of Linux (before 0.99.10) signals can get lost
-for a traced process.
-
-- strace works best if you have a proc fs mounted on /proc, the
-/proc/##/mem frame buffers are used for reading system call arguments.
-You can use /dev/ram or some other unused block device for mounting
-the proc fs:
-
- mount -t proc /dev/ram /proc
-
-or in /etc/fstab:
-
-/dev/hda /proc proc defaults
-
-
-
-Branko Lankester Jun 18 1993
-branko@hacktic.nl || lankeste@fwi.uva.nl
projects / strace / blobdiff