268 lines
6.3 KiB
C
268 lines
6.3 KiB
C
/*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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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 are
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* met: 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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* 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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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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*/
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#ifdef linux
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#define _GNU_SOURCE
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#include <sched.h>
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#endif
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#include <inttypes.h>
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#include <err.h>
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#include <fcntl.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 "m5op.h"
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char *progname;
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char *command = "unspecified";
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void usage();
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void
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parse_int_args(int argc, char *argv[], uint64_t ints[], int len)
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{
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if (argc > len)
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usage();
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int i;
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for (i = 0; i < len; ++i)
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ints[i] = (i < argc) ? strtoul(argv[i], NULL, 0) : 0;
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}
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int
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read_file(int dest_fid)
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{
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char buf[256*1024];
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int offset = 0;
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int len;
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// Touch all buffer pages to ensure they are mapped in the
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// page table. This is required in the case of X86_FS, where
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// Linux does demand paging.
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memset(buf, 0, sizeof(buf));
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while ((len = m5_readfile(buf, sizeof(buf), offset)) > 0) {
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write(dest_fid, buf, len);
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offset += len;
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}
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}
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void
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do_exit(int argc, char *argv[])
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{
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if (argc > 1)
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usage();
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m5_exit((argc > 0) ? strtoul(argv[0], NULL, 0) : 0);
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}
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void
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do_reset_stats(int argc, char *argv[])
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{
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uint64_t ints[2];
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parse_int_args(argc, argv, ints, 2);
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m5_reset_stats(ints[0], ints[1]);
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}
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void
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do_dump_stats(int argc, char *argv[])
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{
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uint64_t ints[2];
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parse_int_args(argc, argv, ints, 2);
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m5_dump_stats(ints[0], ints[1]);
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}
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void
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do_dump_reset_stats(int argc, char *argv[])
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{
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uint64_t ints[2];
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parse_int_args(argc, argv, ints, 2);
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m5_dumpreset_stats(ints[0], ints[1]);
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}
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void
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do_read_file(int argc, char *argv[])
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{
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if (argc > 0)
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usage();
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read_file(STDOUT_FILENO);
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}
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void
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do_exec_file(int argc, char *argv[])
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{
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if (argc > 0)
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usage();
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const char *destname = "/tmp/execfile";
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int fid = open(destname, O_WRONLY, 0777);
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int len = read_file(fid);
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close(fid);
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if (len > 0) {
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execl(destname, "execfile", NULL);
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err(1, "execl failed!");
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}
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}
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void
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do_checkpoint(int argc, char *argv[])
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{
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uint64_t ints[2];
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parse_int_args(argc, argv, ints, 2);
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m5_checkpoint(ints[0], ints[1]);
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}
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void
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do_load_symbol(int argc, char *argv[])
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{
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if (argc != 2)
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usage();
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uint64_t addr = strtoul(argv[0], NULL, 0);
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char *symbol = argv[1];
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m5_loadsymbol(addr, symbol);
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}
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void
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do_initparam(int argc, char *argv[])
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{
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if (argc != 0)
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usage();
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printf("%ld", m5_initparam());
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}
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void
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do_sw99param(int argc, char *argv[])
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{
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if (argc != 0)
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usage();
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uint64_t param = m5_initparam();
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// run-time, rampup-time, rampdown-time, warmup-time, connections
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printf("%d %d %d %d %d", (param >> 48) & 0xfff,
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(param >> 36) & 0xfff, (param >> 24) & 0xfff,
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(param >> 12) & 0xfff, (param >> 0) & 0xfff);
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}
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#ifdef linux
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void
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do_pin(int argc, char *argv[])
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{
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if (argc < 2)
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usage();
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cpu_set_t mask;
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CPU_ZERO(&mask);
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const char *sep = ",";
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char *target = strtok(argv[0], sep);
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while (target) {
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CPU_SET(atoi(target), &mask);
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target = strtok(NULL, sep);
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}
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if (sched_setaffinity(0, sizeof(cpu_set_t), &mask) < 0)
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err(1, "setaffinity");
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execvp(argv[1], &argv[1]);
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err(1, "execvp failed!");
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}
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#endif
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struct MainFunc
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{
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char *name;
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void (*func)(int argc, char *argv[]);
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char *usage;
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};
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struct MainFunc mainfuncs[] = {
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{ "exit", do_exit, "[delay]" },
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{ "resetstats", do_reset_stats, "[delay [period]]" },
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{ "dumpstats", do_dump_stats, "[delay [period]]" },
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{ "dumpresetstats", do_dump_reset_stats, "[delay [period]]" },
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{ "readfile", do_read_file, "[filename]" },
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{ "execfile", do_exec_file, "<filename>" },
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{ "checkpoint", do_checkpoint, "[delay [period]]" },
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{ "loadsymbol", do_load_symbol, "<address> <symbol>" },
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{ "initparam", do_initparam, "" },
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{ "sw99param", do_sw99param, "" },
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#ifdef linux
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{ "pin", do_pin, "<cpu> <program> [args ...]" }
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#endif
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};
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int numfuncs = sizeof(mainfuncs) / sizeof(mainfuncs[0]);
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void
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usage()
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{
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int i;
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for (i = 0; i < numfuncs; ++i) {
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char *header = i ? "" : "usage:";
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fprintf(stderr, "%-6s %s %s %s\n",
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header, progname, mainfuncs[i].name, mainfuncs[i].usage);
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}
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fprintf(stderr, "\n");
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fprintf(stderr, "All times in nanoseconds!\n");
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exit(1);
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}
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int
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main(int argc, char *argv[])
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{
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progname = argv[0];
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if (argc < 2)
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usage(1);
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command = argv[1];
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argv += 2;
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argc -= 2;
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int i;
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for (i = 0; i < numfuncs; ++i) {
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if (strcmp(command, mainfuncs[i].name) != 0)
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continue;
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mainfuncs[i].func(argc, argv);
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exit(0);
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}
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usage(1);
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}
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