X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Flinux-nat.h;h=0aa83770c2e7f0451eec19a5770c8075aebe0924;hb=2117c711ae07700adb57ea5b5ca61e4c32d7e3d2;hp=74a8286b35cfddffc1b2917df2478d8d8d1e2407;hpb=a2f23071c92ee8e0ad72cef70e82af6192b48ba9;p=deliverable%2Fbinutils-gdb.git
diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index 74a8286b35..0aa83770c2 100644
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -1,11 +1,12 @@
/* Native debugging support for GNU/Linux (LWP layer).
- Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+ Copyright (C) 2000-2014 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
@@ -14,13 +15,17 @@
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see . */
#include "target.h"
-/* Structure describing an LWP. */
+#include
+
+struct arch_lwp_info;
+
+/* Structure describing an LWP. This is public only for the purposes
+ of ALL_LWPS; target-specific code should generally not access it
+ directly. */
struct lwp_info
{
@@ -48,41 +53,140 @@ struct lwp_info
didn't try to let the LWP run. */
int resumed;
+ /* The last resume GDB requested on this thread. */
+ enum resume_kind last_resume_kind;
+
/* If non-zero, a pending wait status. */
int status;
/* Non-zero if we were stepping this LWP. */
int step;
+ /* STOPPED_BY_WATCHPOINT is non-zero if this LWP stopped with a data
+ watchpoint trap. */
+ int stopped_by_watchpoint;
+
+ /* On architectures where it is possible to know the data address of
+ a triggered watchpoint, STOPPED_DATA_ADDRESS_P is non-zero, and
+ STOPPED_DATA_ADDRESS contains such data address. Otherwise,
+ STOPPED_DATA_ADDRESS_P is false, and STOPPED_DATA_ADDRESS is
+ undefined. Only valid if STOPPED_BY_WATCHPOINT is true. */
+ int stopped_data_address_p;
+ CORE_ADDR stopped_data_address;
+
+ /* Non-zero if we expect a duplicated SIGINT. */
+ int ignore_sigint;
+
/* If WAITSTATUS->KIND != TARGET_WAITKIND_SPURIOUS, the waitstatus
for this LWP's last event. This may correspond to STATUS above,
or to a local variable in lin_lwp_wait. */
struct target_waitstatus waitstatus;
+ /* Signal wether we are in a SYSCALL_ENTRY or
+ in a SYSCALL_RETURN event.
+ Values:
+ - TARGET_WAITKIND_SYSCALL_ENTRY
+ - TARGET_WAITKIND_SYSCALL_RETURN */
+ int syscall_state;
+
+ /* The processor core this LWP was last seen on. */
+ int core;
+
+ /* Arch-specific additions. */
+ struct arch_lwp_info *arch_private;
+
/* Next LWP in list. */
struct lwp_info *next;
};
-/* Read/write to target memory via the Linux kernel's "proc file
- system". */
-struct mem_attrib;
-struct target_ops;
+/* The global list of LWPs, for ALL_LWPS. Unlike the threads list,
+ there is always at least one LWP on the list while the GNU/Linux
+ native target is active. */
+extern struct lwp_info *lwp_list;
+
+/* Iterate over each active thread (light-weight process). */
+#define ALL_LWPS(LP) \
+ for ((LP) = lwp_list; \
+ (LP) != NULL; \
+ (LP) = (LP)->next)
-extern int linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len,
- int write, struct mem_attrib *attrib,
- struct target_ops *target);
+/* Attempt to initialize libthread_db. */
+void check_for_thread_db (void);
+
+int thread_db_attach_lwp (ptid_t ptid);
+
+/* Return the set of signals used by the threads library. */
+extern void lin_thread_get_thread_signals (sigset_t *mask);
/* Find process PID's pending signal set from /proc/pid/status. */
-void linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored);
+void linux_proc_pending_signals (int pid, sigset_t *pending,
+ sigset_t *blocked, sigset_t *ignored);
+
+extern int lin_lwp_attach_lwp (ptid_t ptid);
-/* linux-nat functions for handling fork events. */
-extern void linux_record_stopped_pid (int pid);
-extern void linux_enable_event_reporting (ptid_t ptid);
-extern ptid_t linux_handle_extended_wait (int pid, int status,
- struct target_waitstatus *ourstatus);
-extern void linux_child_post_startup_inferior (ptid_t ptid);
+extern void linux_stop_lwp (struct lwp_info *lwp);
/* Iterator function for lin-lwp's lwp list. */
-struct lwp_info *iterate_over_lwps (int (*callback) (struct lwp_info *,
+struct lwp_info *iterate_over_lwps (ptid_t filter,
+ int (*callback) (struct lwp_info *,
void *),
void *data);
+
+/* Create a prototype generic GNU/Linux target. The client can
+ override it with local methods. */
+struct target_ops * linux_target (void);
+
+/* Create a generic GNU/Linux target using traditional
+ ptrace register access. */
+struct target_ops *
+linux_trad_target (CORE_ADDR (*register_u_offset)(struct gdbarch *, int, int));
+
+/* Register the customized GNU/Linux target. This should be used
+ instead of calling add_target directly. */
+void linux_nat_add_target (struct target_ops *);
+
+/* Register a method to call whenever a new thread is attached. */
+void linux_nat_set_new_thread (struct target_ops *, void (*) (struct lwp_info *));
+
+
+/* Register a method to call whenever a new fork is attached. */
+typedef void (linux_nat_new_fork_ftype) (struct lwp_info *parent,
+ pid_t child_pid);
+void linux_nat_set_new_fork (struct target_ops *ops,
+ linux_nat_new_fork_ftype *fn);
+
+/* Register a method to call whenever a process is killed or
+ detached. */
+typedef void (linux_nat_forget_process_ftype) (pid_t pid);
+void linux_nat_set_forget_process (struct target_ops *ops,
+ linux_nat_forget_process_ftype *fn);
+
+/* Call the method registered with the function above. PID is the
+ process to forget about. */
+void linux_nat_forget_process (pid_t pid);
+
+/* Register a method that converts a siginfo object between the layout
+ that ptrace returns, and the layout in the architecture of the
+ inferior. */
+void linux_nat_set_siginfo_fixup (struct target_ops *,
+ int (*) (siginfo_t *,
+ gdb_byte *,
+ int));
+
+/* Register a method to call prior to resuming a thread. */
+
+void linux_nat_set_prepare_to_resume (struct target_ops *,
+ void (*) (struct lwp_info *));
+
+/* Update linux-nat internal state when changing from one fork
+ to another. */
+void linux_nat_switch_fork (ptid_t new_ptid);
+
+/* Store the saved siginfo associated with PTID in *SIGINFO.
+ Return 1 if it was retrieved successfully, 0 otherwise (*SIGINFO is
+ uninitialized in such case). */
+int linux_nat_get_siginfo (ptid_t ptid, siginfo_t *siginfo);
+
+/* Set alternative SIGTRAP-like events recognizer. */
+void linux_nat_set_status_is_event (struct target_ops *t,
+ int (*status_is_event) (int status));