89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/* Native debugging support for GNU/Linux (LWP layer).
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Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "target.h"
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/* Structure describing an LWP. */
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struct lwp_info
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{
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/* The process id of the LWP. This is a combination of the LWP id
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and overall process id. */
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ptid_t ptid;
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/* Non-zero if this LWP is cloned. In this context "cloned" means
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that the LWP is reporting to its parent using a signal other than
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SIGCHLD. */
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int cloned;
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/* Non-zero if we sent this LWP a SIGSTOP (but the LWP didn't report
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it back yet). */
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int signalled;
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/* Non-zero if this LWP is stopped. */
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int stopped;
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/* Non-zero if this LWP will be/has been resumed. Note that an LWP
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can be marked both as stopped and resumed at the same time. This
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happens if we try to resume an LWP that has a wait status
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pending. We shouldn't let the LWP run until that wait status has
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been processed, but we should not report that wait status if GDB
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didn't try to let the LWP run. */
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int resumed;
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/* If non-zero, a pending wait status. */
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int status;
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/* Non-zero if we were stepping this LWP. */
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int step;
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/* If WAITSTATUS->KIND != TARGET_WAITKIND_SPURIOUS, the waitstatus
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for this LWP's last event. This may correspond to STATUS above,
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or to a local variable in lin_lwp_wait. */
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struct target_waitstatus waitstatus;
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/* Next LWP in list. */
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struct lwp_info *next;
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};
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/* Read/write to target memory via the Linux kernel's "proc file
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system". */
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struct mem_attrib;
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struct target_ops;
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extern int linux_proc_xfer_memory (CORE_ADDR addr, gdb_byte *myaddr, int len,
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int write, struct mem_attrib *attrib,
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struct target_ops *target);
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/* Find process PID's pending signal set from /proc/pid/status. */
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void linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored);
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/* linux-nat functions for handling fork events. */
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extern void linux_record_stopped_pid (int pid);
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extern void linux_enable_event_reporting (ptid_t ptid);
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extern ptid_t linux_handle_extended_wait (int pid, int status,
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struct target_waitstatus *ourstatus);
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extern void linux_child_post_startup_inferior (ptid_t ptid);
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/* Iterator function for lin-lwp's lwp list. */
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struct lwp_info *iterate_over_lwps (int (*callback) (struct lwp_info *,
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void *),
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void *data);
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