c67d07416a
list of frame sniffers so that trapframes can be detected. The kluge is needed because this version of gdb only supports appending a sniffer to the list of sniffers and the moment kgdb gets a chance to add its own frame sniffer, the target's default frame sniffer is already in the list. Since the default frame sniffer claims any frame thrown at it, kgdb's frame sniffer never gets to smell (a process much akin to tasting, but with lesser chance of hurling :-) This commit adds dummy frame sniffers that never claim a frame and as such don't fix anything yet. However, we now have frame sniffers and they are being called, so it's just a matter of adding meat to the bones and we'll be able to properly unwind across trapframes. MFC after: 1 week
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/*
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* Copyright (c) 2004 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _KGDB_H_
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#define _KGDB_H_
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struct thread_info;
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extern kvm_t *kvm;
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extern int verbose;
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struct kthr {
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struct kthr *next;
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uintptr_t paddr;
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uintptr_t kaddr;
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uintptr_t kstack;
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uintptr_t pcb;
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int tid;
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int pid;
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};
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extern struct kthr *curkthr;
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void kgdb_target(void);
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void kgdb_trgt_fetch_registers(int);
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void kgdb_trgt_store_registers(int);
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frame_unwind_sniffer_ftype kgdb_trgt_trapframe_sniffer;
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struct kthr *kgdb_thr_first(void);
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struct kthr *kgdb_thr_init(void);
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struct kthr *kgdb_thr_lookup_tid(int);
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struct kthr *kgdb_thr_lookup_pid(int);
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struct kthr *kgdb_thr_lookup_paddr(uintptr_t);
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struct kthr *kgdb_thr_lookup_taddr(uintptr_t);
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struct kthr *kgdb_thr_next(struct kthr *);
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struct kthr *kgdb_thr_select(struct kthr *);
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char *kgdb_thr_extra_thread_info(int);
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#endif /* _KGDB_H_ */
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