Rodrigo Arias
354f2f50eb
Until now, emulation models were always being registered via probe(), which causes the emulator to initialize all the channels. To reduce the overhead, the channels were not connected or registered in the bay until the first event of that model was received. This delayed connect was causing issues in muxes where the newly connected model required refreshing the touched channels. Which in turn was causing unexpected PRV events. By determining which models we need to enable, we can remove the delayed connect mechanism and just enable those models at initialization time, and connect the channels.
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/* Copyright (c) 2023 Barcelona Supercomputing Center (BSC)
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* SPDX-License-Identifier: GPL-3.0-or-later */
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#include <stdio.h>
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#include "common.h"
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#include "emu/emu_prv.h"
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#include "instr.h"
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#include "instr_nanos6.h"
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/* This test attempts to create holes in the breakdown trace by creating a
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* thread that emits the first Nanos6 event later than the ovni thread execute
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* event OHx. When the breakdown model is enabled, the output breakdown PRV
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* trace should contain already a value for time=0, which is when OHx is
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* emitted. We also test that on 6W[ we emit another non-zero state.
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*
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* . .
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* OHx 6W[
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* --------------x--------------x--------------> time
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* . .
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* . .
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* breakdown ----A--------------B--------------
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* . .
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*
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* We check that A and B are not emitting 0. */
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int
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main(void)
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{
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instr_start(0, 1);
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instr_nanos6_init();
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/* Match the PRV line in the trace */
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FILE *f = fopen("match.sh", "w");
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if (f == NULL)
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die("fopen failed:");
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/* Ensure non-zero for A (first event) */
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fprintf(f, "grep ':%ld:%d:[^0][0-9]*$' ovni/nanos6-breakdown.prv\n",
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get_delta(), PRV_NANOS6_BREAKDOWN);
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instr_nanos6_worker_loop_enter();
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/* And for B */
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fprintf(f, "grep ':%ld:%d:[^0][0-9]*$' ovni/nanos6-breakdown.prv\n",
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get_delta(), PRV_NANOS6_BREAKDOWN);
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instr_nanos6_worker_loop_exit();
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instr_end();
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return 0;
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}
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