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94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
/* Code for native debugging support for GNU/Linux (LWP layer).
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Copyright (C) 2000-2017 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 3 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, see <http://www.gnu.org/licenses/>. */
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#ifndef LINUX_NAT_H
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#define LINUX_NAT_H
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#include "target/waitstatus.h"
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struct lwp_info;
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struct arch_lwp_info;
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/* This is the kernel's hard limit. Not to be confused with SIGRTMIN. */
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#ifndef __SIGRTMIN
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#define __SIGRTMIN 32
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#endif
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/* Unlike other extended result codes, WSTOPSIG (status) on
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PTRACE_O_TRACESYSGOOD syscall events doesn't return SIGTRAP, but
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instead SIGTRAP with bit 7 set. */
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#define SYSCALL_SIGTRAP (SIGTRAP | 0x80)
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/* Return the ptid of the current lightweight process. With NPTL
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threads and LWPs map 1:1, so this is equivalent to returning the
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ptid of the current thread. This function must be provided by
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the client. */
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extern ptid_t current_lwp_ptid (void);
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/* Function type for the CALLBACK argument of iterate_over_lwps. */
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typedef int (iterate_over_lwps_ftype) (struct lwp_info *lwp, void *arg);
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/* Iterate over all LWPs. Calls CALLBACK with its second argument set
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to DATA for every LWP in the list. If CALLBACK returns nonzero for
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a particular LWP, return a pointer to the structure describing that
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LWP immediately. Otherwise return NULL. This function must be
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provided by the client. */
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extern struct lwp_info *iterate_over_lwps (ptid_t filter,
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iterate_over_lwps_ftype callback,
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void *data);
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/* Return the ptid of LWP. */
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extern ptid_t ptid_of_lwp (struct lwp_info *lwp);
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/* Set the architecture-specific data of LWP. This function must be
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provided by the client. */
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extern void lwp_set_arch_private_info (struct lwp_info *lwp,
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struct arch_lwp_info *info);
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/* Return the architecture-specific data of LWP. This function must
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be provided by the client. */
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extern struct arch_lwp_info *lwp_arch_private_info (struct lwp_info *lwp);
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/* Return nonzero if LWP is stopped, zero otherwise. This function
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must be provided by the client. */
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extern int lwp_is_stopped (struct lwp_info *lwp);
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/* Return the reason the LWP last stopped. This function must be
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provided by the client. */
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extern enum target_stop_reason lwp_stop_reason (struct lwp_info *lwp);
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/* Cause LWP to stop. This function must be provided by the
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client. */
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extern void linux_stop_lwp (struct lwp_info *lwp);
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/* Return nonzero if we are single-stepping this LWP at the ptrace
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level. */
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extern int lwp_is_stepping (struct lwp_info *lwp);
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#endif /* LINUX_NAT_H */
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