bsd/kern/kern_exit.c

7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
38  * Redistribution and use in source and binary forms, with or without
43  * 2. Redistributions in binary form must reproduce the above copyright
44  *    notice, this list of conditions and the following disclaimer in the
69  * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
71  * is included in support of clause 2.2 (b) of the Apple Public License,
159  * Things which should have prototypes in headers, but don't
176 siginfo_user_to_user32(user_siginfo_t *in, user32_siginfo_t *out)
178 	out->si_signo	= in->si_signo;
179 	out->si_errno	= in->si_errno;
180 	out->si_code	= in->si_code;
181 	out->si_pid	= in->si_pid;
182 	out->si_uid	= in->si_uid;
183 	out->si_status	= in->si_status;
184 	out->si_addr	= CAST_DOWN_EXPLICIT(user32_addr_t,in->si_addr);
186 	out->si_value.sival_ptr	= CAST_DOWN_EXPLICIT(user32_addr_t,in->si_value.sival_ptr);
187 	out->si_band	= in->si_band;			/* range reduction */
191 siginfo_user_to_user64(user_siginfo_t *in, user64_siginfo_t *out)
193 	out->si_signo	= in->si_signo;
194 	out->si_errno	= in->si_errno;
195 	out->si_code	= in->si_code;
196 	out->si_pid	= in->si_pid;
197 	out->si_uid	= in->si_uid;
198 	out->si_status	= in->si_status;
199 	out->si_addr	= in->si_addr;
201 	out->si_value.sival_ptr	= in->si_value.sival_ptr;
202 	out->si_band	= in->si_band;			/* range reduction */
260 	 * If a thread in this task has already
305 		 * in progress. Instread of letting exit continue and
307 		 * return. This will save corruption in remote case.
374 		 * should be backed out post-Leopard (details in 5431025).
383 		 * type, and low 20 bits of the original code in code[0]
403 	 * in partially cleaned state.
451 		 * in a single-threaded process.
466 	 * Other kernel threads may be in the middle of signalling this process.
506 	 * APPLE NOTE: We release ptss pages/entries in dtrace_fasttrap_exit_ptr(),
516 	/* XXX Zombie allocation may fail, in which case stats get lost */
550 		 * and the I/O we issued while in flushing files on close
667 			 * if the reap is already in progress. So we get
702 				 	* the first thread in the task. So any attempts to kill
732 	 * Save exit status and final rusage info, adding in child rusage
801 	 * no need to hold proc lock in uthread_free
815 		 * We should contest the standard in this case on the basis
844 			 * and reference is dropped in reap
892 		 * if the reap is already in progress. So we get
1018 		 * We should contest the standard in this case on the basis
1037 	 * (locking protection is provided by list lock held in chgproccnt)
1335  *		uap->infop		Address of siginfo_t struct in
1440 			 * If we are not interested in stopped processes, then
1510 		/* Not a process we are interested in; go on to next child */
1531 		 * The state of the siginfo structure in this case
1620 	 * If a thread in this task has already
1631 	 	* This happens when a parent exits/killed and vfork is in progress
1643 		 * thread that has vfork in proress terminates. So there is no
1656 	 * in partially cleaned state.
1708 	/* XXX Zombie allocation may fail, in which case stats get lost */
1805 			 * if the reap is already in progress. So we get
1831 				 	* the first thread in the task. So any attempts to kill
1860 	 * Save exit status and final rusage info, adding in child rusage
1952 			 * and reference is dropped in reap
1983 		 * if the reap is already in progress. So we get