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d5a7911f4a
2. Add a TF_DONE macro, which fiddles a trapframe to make the retry on return from traps act like a done (advance past the trapping instruction instead of re-executing). 3. Flush the windows before entering the debugger, since it is no longer done in the breakpoint trap vector. 4. Print a warning if trace <pid> is attempted, it is not yet implemented. 5. Print traps better and decode system calls in traces. Submitted by: rwatson (4)
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/*-
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* Copyright (c) 2001 Jake Burkholder.
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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 _MACHINE_FRAME_H_
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#define _MACHINE_FRAME_H_
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#define SPOFF 2047
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struct trapframe {
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u_long tf_global[8];
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u_long tf_out[8];
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u_long tf_pil;
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u_long tf_tnpc;
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u_long tf_tpc;
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u_long tf_tstate;
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u_long tf_type;
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u_long tf_wstate;
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uintptr_t tf_arg;
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};
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#define tf_sp tf_out[6]
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#define TF_DONE(tf) do { \
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tf->tf_tpc = tf->tf_tnpc; \
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tf->tf_tnpc += 4; \
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} while (0)
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#define TF_DONE(tf) do { \
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tf->tf_tpc = tf->tf_tnpc; \
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tf->tf_tnpc += 4; \
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} while (0)
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struct mmuframe {
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u_long mf_sfar;
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u_long mf_sfsr;
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u_long mf_tar;
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};
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struct clockframe {
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struct trapframe cf_tf;
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};
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struct frame {
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u_long f_local[8];
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u_long f_in[8];
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u_long f_pad[8];
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};
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#define f_fp f_in[6]
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#define f_pc f_in[7]
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/*
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* Frame used for pcb_wscratch.
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*/
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struct rwindow {
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u_long rw_local[8];
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u_long rw_in[8];
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};
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struct thread;
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int rwindow_save(struct thread *td);
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int rwindow_load(struct thread *td, struct trapframe *tf, int n);
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int kdb_trap(struct trapframe *tf);
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#endif /* !_MACHINE_FRAME_H_ */
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