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Support for new Linux 2.5 thread features. * defs.h [LINUX]: Define __NR_exit_group if not defined. (struct tcb): New members nclone_threads, nclone_detached, and nclone_waiting. (TCB_CLONE_DETACHED, TCB_CLONE_THREAD, TCB_GROUP_EXITING): New macros. (waiting_parent): Macro removed. (pid2tcb): Declare it. * process.c (internal_clone) [TCB_CLONE_THREAD]: Reparent the new child to our parent if we are a CLONE_THREAD child ourselves. Maintain TCB_CLONE_THREAD and TCB_CLONE_DETACHED flags and counts. (internal_wait) [TCB_CLONE_THREAD]: Factor out detached children when determining if we have any. If TCB_CLONE_THREAD is set, check parent's children instead of our own, and bump nclone_waiting count. (internal_exit) [__NR_exit_group]: Set the TCB_GROUP_EXITING flag if the syscall was exit_group. * syscall.c (internal_syscall): Use internal_exit for exit_group. * strace.c (pid2tcb): No longer static. (alloctcb) [TCB_CLONE_THREAD]: Initialize new fields. (droptcb) [TCB_CLONE_THREAD]: Maintain new fields. If we have thread children, set TCB_EXITING and don't clear the TCB. (resume) [TCB_CLONE_THREAD]: Decrement parent's nclone_waiting. (detach) [TCB_CLONE_THREAD]: When calling resume, check all thread children of our parent that might be waiting for us too. [TCB_GROUP_EXITING] (handle_group_exit): New function. (trace) [TCB_GROUP_EXITING]: Use that in place of detach or droptcb.
This is strace 4.0, a system call tracer for SunOS 4.x, Linux, System V release 4, Solaris 2.x and Irix 5.x. strace is released under a Berkeley-style license at the request of Paul Kranenburg; see the file COPYRIGHT for details. Read the INSTALL file for generic instructions on how to install strace. If configure cannot guess your system configuration, you can specify it on the command line after the other options like this: ./configure --prefix=/usr i486-linux A single sunos4.1 binary should work on all the sun4, sun4c and sun4m kernel architectures. Let me know if sun4d doesn't work. Other i486-*-sysv4 systems may work with little or no tweaking. See the file NEWS for information on what has changed in recent versions. See the file PORTING if you like strace but it doesn't work on an operating system you use frequently. See the file CREDITS to see who has contributed to strace. See the file TODO if you feel like helping out. You can get the latest version of strace from its homepage at http://www.liacs.nl/~wichert/strace/ . Please send bug reports and enhancements to the strace mailinglist at strace-devel@lists.sourceforge.net, or directly to Wichert Akkerman <wakkerma@debian.org>