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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2021, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
*/
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <fcntl.h>
#include <errno.h>
#include "trace-local.h"
#include "trace-cmd.h"
#include "trace-cmd-private.h"
static void convert_file(const char *in, const char *out, int file_version, char *compr)
{
struct tracecmd_input *ihandle;
struct tracecmd_output *ohandle;
ihandle = tracecmd_open_head(in, 0);
if (!ihandle)
die("error reading %s", in);
ohandle = tracecmd_copy(ihandle, out, TRACECMD_FILE_CPU_FLYRECORD, file_version, compr);
if (!ohandle)
die("error writing %s", out);
tracecmd_output_close(ohandle);
tracecmd_close(ihandle);
}
enum {
OPT_file_version = 254,
OPT_compression = 255,
};
void trace_convert(int argc, char **argv)
{
char *input_file = NULL;
char *output_file = NULL;
char *compression = NULL;
int file_version = tracecmd_default_file_version();
int c;
if (argc < 2)
usage(argv);
if (strcmp(argv[1], "convert") != 0)
usage(argv);
for (;;) {
int option_index = 0;
static struct option long_options[] = {
{"compression", required_argument, NULL, OPT_compression},
{"file-version", required_argument, NULL, OPT_file_version},
{"help", no_argument, NULL, '?'},
{NULL, 0, NULL, 0}
};
c = getopt_long (argc-1, argv+1, "+hi:o:", long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'i':
if (input_file)
die("Only one input file is supported, %s already set",
input_file);
input_file = optarg;
break;
case 'o':
if (output_file)
die("Only one output file is supported, %s already set",
output_file);
output_file = optarg;
break;
case OPT_compression:
if (strcmp(optarg, "any") && strcmp(optarg, "none") &&
!tracecmd_compress_is_supported(optarg, NULL))
die("Compression algorithm %s is not supported", optarg);
compression = optarg;
break;
case OPT_file_version:
file_version = atoi(optarg);
if (file_version < FILE_VERSION_MIN || file_version > FILE_VERSION_MAX)
die("Unsupported file version %d, "
"supported versions are from %d to %d",
file_version, FILE_VERSION_MIN, FILE_VERSION_MAX);
break;
case 'h':
case '?':
default:
usage(argv);
}
}
if ((argc - optind) >= 2) {
if (output_file)
usage(argv);
output_file = argv[optind + 1];
}
if (!input_file)
input_file = DEFAULT_INPUT_FILE;
if (!output_file)
usage(argv);
if (file_version >= FILE_VERSION_COMPRESSION && !compression)
compression = "any";
convert_file(input_file, output_file, file_version, compression);
}
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