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97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/*
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* This file is part of mtrace.
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* Copyright (C) 2015 Stefani Seibold <stefani@seibold.net>
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* This file is based on the ltrace source
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* Copyright (C) 2007,2011,2012 Petr Machata, Red Hat Inc.
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* Copyright (C) 2010 Joe Damato
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* Copyright (C) 1998,2002,2003,2004,2008,2009 Juan Cespedes
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* Copyright (C) 2006 Ian Wienand
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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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., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include "config.h"
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#include <asm/unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "backend.h"
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#include "breakpoint.h"
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#include "debug.h"
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#include "event.h"
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#include "options.h"
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#include "report.h"
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#include "task.h"
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#include "library.h"
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int skip_breakpoint(struct task *task, struct breakpoint *bp)
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{
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debug(DEBUG_PROCESS, "pid=%d, addr=%#lx", task->pid, bp->addr);
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if (task->event.type != EVENT_NONE)
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return 1;
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if (bp->enabled && bp->type == SW_BP) {
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int ret = 0;
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breakpoint_disable(task, bp);
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ret = do_singlestep(task);
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breakpoint_enable(task, bp);
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if (ret) {
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if (ret == 1)
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task->skip_bp = bp;
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return ret;
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}
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}
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continue_task(task, 0);
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return 0;
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}
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void detach_task(struct task *task)
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{
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int sig = 0;
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if (task->event.type == EVENT_SIGNAL)
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sig = task->event.e_un.signum;
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remove_event(task);
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breakpoint_hw_destroy(task);
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untrace_task(task, sig);
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}
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static void detach_cb(struct task *task, void *data)
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{
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detach_task(task);
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}
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void detach_proc(struct task *leader)
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{
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assert(leader->leader == leader);
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breakpoint_disable_all(leader);
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each_task(leader, &detach_cb, NULL);
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remove_task(leader);
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}
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