1f2b051d84
Lengths are not negative, so map_len should be unsigned. Unsign the corresponding indexes too and bring a small use of reallocarray(3). Reorder the memset to be consistent with the realloc: it appears we were only clearing half the memory in pt_map_thread(). MFC after: 2 weeks
95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/*
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* Copyright (c) 2004 David Xu <davidxu@freebsd.org>
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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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* 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LIBPTHREAD_DB_H_
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#define _LIBPTHREAD_DB_H_
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#include <sys/ucontext.h>
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#include <machine/reg.h>
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#include "thread_db_int.h"
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enum pt_type {
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PT_NONE,
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PT_USER,
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PT_LWP
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};
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struct pt_map {
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enum pt_type type;
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union {
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lwpid_t lwp;
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psaddr_t thr;
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};
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};
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struct td_thragent {
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TD_THRAGENT_FIELDS;
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psaddr_t libkse_debug_addr;
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psaddr_t thread_list_addr;
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psaddr_t thread_listgen_addr;
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psaddr_t thread_activated_addr;
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psaddr_t thread_active_threads_addr;
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psaddr_t thread_keytable_addr;
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int thread_activated;
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int thread_off_dtv;
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int thread_off_kse_locklevel;
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int thread_off_kse;
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int thread_off_tlsindex;
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int thread_off_attr_flags;
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int thread_size_key;
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int thread_off_tcb;
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int thread_off_linkmap;
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int thread_off_tmbx;
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int thread_off_thr_locklevel;
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int thread_off_next;
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int thread_off_state;
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int thread_max_keys;
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int thread_off_key_allocated;
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int thread_off_key_destructor;
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int thread_state_zoombie;
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int thread_state_running;
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int thread_off_sigmask;
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int thread_off_sigpend;
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struct pt_map *map;
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unsigned int map_len;
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};
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void pt_md_init(void);
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void pt_reg_to_ucontext(const struct reg *, ucontext_t *);
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void pt_ucontext_to_reg(const ucontext_t *, struct reg *);
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void pt_fpreg_to_ucontext(const struct fpreg *, ucontext_t *);
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void pt_ucontext_to_fpreg(const ucontext_t *, struct fpreg *);
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#ifdef __i386__
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void pt_fxsave_to_ucontext(const char *, ucontext_t *);
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void pt_ucontext_to_fxsave(const ucontext_t *, char *);
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#endif
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int pt_reg_sstep(struct reg *reg, int step);
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#endif /* _LIBPTHREAD_DB_H_ */
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