diff options
| -rw-r--r-- | util/m5/m5.c | 284 |
1 files changed, 162 insertions, 122 deletions
diff --git a/util/m5/m5.c b/util/m5/m5.c index b103796a8..5eb69ea36 100644 --- a/util/m5/m5.c +++ b/util/m5/m5.c @@ -29,6 +29,8 @@ */ #include <inttypes.h> +#include <err.h> +#include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -37,154 +39,192 @@ #include "m5op.h" char *progname; +char *command = "unspecified"; +void usage(); void -usage() +parse_int_args(int argc, char *argv[], uint64_t ints[], int len) { - printf("usage: m5 initparam\n" - " m5 sw99param\n" - " m5 exit [delay]\n" - " m5 resetstats [delay [period]]\n" - " m5 dumpstats [delay [period]]\n" - " m5 dumpresetstats [delay [period]]\n" - " m5 checkpoint [delay [period]]\n" - " m5 readfile\n" - "\n" - "All times in nanoseconds!\n"); - exit(1); -} + if (argc > len) + usage(); -#define COMPARE(X) (strcmp(X, command) == 0) + int i; + for (i = 0; i < len; ++i) + ints[i] = (i < argc) ? strtoul(argv[i], NULL, 0) : 0; +} int -main(int argc, char *argv[]) +read_file(int dest_fid) { - char *command; - uint64_t param; - uint64_t arg1 = 0; - uint64_t arg2 = 0; + char buf[256*1024]; + int offset = 0; + int len; - progname = argv[0]; - if (argc < 2) + while ((len = m5_readfile(buf, sizeof(buf), offset)) > 0) { + write(dest_fid, buf, len); + offset += len; + } +} + +void +do_exit(int argc, char *argv[]) +{ + if (argc > 1) usage(); - command = argv[1]; + m5_exit((argc > 0) ? strtoul(argv[0], NULL, 0) : 0); +} - if (COMPARE("initparam")) { - if (argc != 2) - usage(); +void +do_reset_stats(int argc, char *argv[]) +{ + uint64_t ints[2]; + parse_int_args(argc, argv, ints, 2); + m5_reset_stats(ints[0], ints[1]); +} - printf("%ld", m5_initparam()); - return 0; - } +void +do_dump_stats(int argc, char *argv[]) +{ + uint64_t ints[2]; + parse_int_args(argc, argv, ints, 2); + m5_dump_stats(ints[0], ints[1]); +} - if (COMPARE("sw99param")) { - if (argc != 2) - usage(); +void +do_dump_reset_stats(int argc, char *argv[]) +{ + uint64_t ints[2]; + parse_int_args(argc, argv, ints, 2); + m5_dumpreset_stats(ints[0], ints[1]); +} - param = m5_initparam(); - // run-time, rampup-time, rampdown-time, warmup-time, connections - printf("%d %d %d %d %d", (param >> 48) & 0xfff, - (param >> 36) & 0xfff, (param >> 24) & 0xfff, - (param >> 12) & 0xfff, (param >> 0) & 0xfff); +void +do_read_file(int argc, char *argv[]) +{ + if (argc > 0) + usage(); - return 0; - } + read_file(STDOUT_FILENO); +} - if (COMPARE("exit")) { - switch (argc) { - case 3: - arg1 = strtoul(argv[2], NULL, 0); - case 2: - m5_exit(arg1); - return 0; - - default: - usage(); - } - } +void +do_exec_file(int argc, char *argv[]) +{ + if (argc > 0) + usage(); - if (COMPARE("resetstats")) { - switch (argc) { - case 4: - arg2 = strtoul(argv[3], NULL, 0); - case 3: - arg1 = strtoul(argv[2], NULL, 0); - case 2: - m5_reset_stats(arg1, arg2); - return 0; - - default: - usage(); - } - } + const char *destname = "/tmp/execfile"; - if (COMPARE("dumpstats")) { - switch (argc) { - case 4: - arg2 = strtoul(argv[3], NULL, 0); - case 3: - arg1 = strtoul(argv[2], NULL, 0); - case 2: - m5_dump_stats(arg1, arg2); - return 0; - - default: - usage(); - } + int fid = open(destname, O_WRONLY, 0777); + int len = read_file(fid); + close(fid); + if (len > 0) { + execl(destname, "execfile", NULL); + err(1, "execl failed!"); } +} - if (COMPARE("dumpresetstats")) { - switch (argc) { - case 4: - arg2 = strtoul(argv[3], NULL, 0); - case 3: - arg1 = strtoul(argv[2], NULL, 0); - case 2: - m5_dumpreset_stats(arg1, arg2); - return 0; - - default: - usage(); - } - } +void +do_checkpoint(int argc, char *argv[]) +{ + uint64_t ints[2]; + parse_int_args(argc, argv, ints, 2); + m5_checkpoint(ints[0], ints[1]); +} - if (COMPARE("readfile")) { - char buf[256*1024]; - int offset = 0; - int len; +void +do_load_symbol(int argc, char *argv[]) +{ + if (argc != 2) + usage(); - if (argc != 2) - usage(); + uint64_t addr = strtoul(argv[0], NULL, 0); + char *symbol = argv[1]; + m5_loadsymbol(addr, symbol); +} - while ((len = m5_readfile(buf, sizeof(buf), offset)) > 0) { - write(STDOUT_FILENO, buf, len); - offset += len; - } +void +do_initparam(int argc, char *argv[]) +{ + if (argc != 0) + usage(); - return 0; - } + + printf("%ld", m5_initparam()); +} + +void +do_sw99param(int argc, char *argv[]) +{ + if (argc != 0) + usage(); + + uint64_t param = m5_initparam(); + + // run-time, rampup-time, rampdown-time, warmup-time, connections + printf("%d %d %d %d %d", (param >> 48) & 0xfff, + (param >> 36) & 0xfff, (param >> 24) & 0xfff, + (param >> 12) & 0xfff, (param >> 0) & 0xfff); +} + +struct MainFunc +{ + char *name; + void (*func)(int argc, char *argv[]); + char *usage; +}; + +struct MainFunc mainfuncs[] = { + { "exit", do_exit, "[delay]" }, + { "resetstats", do_reset_stats, "[delay [period]]" }, + { "dumpstats", do_dump_stats, "[delay [period]]" }, + { "dumpresetstats", do_dump_reset_stats, "[delay [period]]" }, + { "readfile", do_read_file, "[filename]" }, + { "execfile", do_exec_file, "<filename>" }, + { "checkpoint", do_checkpoint, "[delay [period]]" }, + { "loadsymbol", do_load_symbol, "<address> <symbol>" }, + { "initparam", do_initparam, "" }, + { "sw99param", do_sw99param, "" }, +}; +int numfuncs = sizeof(mainfuncs) / sizeof(mainfuncs[0]); + +void +usage() +{ + int i; - if (COMPARE("checkpoint")) { - switch (argc) { - case 4: - arg2 = strtoul(argv[3], NULL, 0); - case 3: - arg1 = strtoul(argv[2], NULL, 0); - case 2: - m5_checkpoint(arg1, arg2); - return 0; - - default: - usage(); - } - - return 0; + for (i = 0; i < numfuncs; ++i) { + char *header = i ? "" : "usage:"; + fprintf(stderr, "%-6s %s %s %s\n", + header, progname, mainfuncs[i].name, mainfuncs[i].usage); } + fprintf(stderr, "\n"); + fprintf(stderr, "All times in nanoseconds!\n"); - if (COMPARE("loadsymbol")) { - m5_loadsymbol(arg1); - return 0; + exit(1); +} + +int +main(int argc, char *argv[]) +{ + progname = argv[0]; + if (argc < 2) + usage(1); + + command = argv[1]; + + argv += 2; + argc -= 2; + + int i; + for (i = 0; i < numfuncs; ++i) { + if (strcmp(command, mainfuncs[i].name) != 0) + continue; + + mainfuncs[i].func(argc, argv); + exit(0); } - usage(); + + usage(1); } |