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authorStefan Reinauer <reinauer@chromium.org>2013-01-02 15:43:56 -0800
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-01-03 01:09:50 +0100
commit1e0e55615f86bb9237fa8f4d81158cbf25c65565 (patch)
treee573669d71aa77c976ba9399bebd76d32efa7981 /util
parent2c3f2609ca30f6303cec9639bacf1eb40aeee213 (diff)
downloadcoreboot-1e0e55615f86bb9237fa8f4d81158cbf25c65565.tar.xz
cbmem utility: support command line options
The tool could print much more useful information than just time stamps, for example the cbmem console on systems that don't have a kernel patched to support /sys/firmware/log. Hence, add command line option parsing to make adding such features easier in the future. Change-Id: Ib2b2584970f8a4e4187da803fcc5a95469f23a6a Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2091 Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Tested-by: build bot (Jenkins)
Diffstat (limited to 'util')
-rw-r--r--util/cbmem/cbmem.c53
1 files changed, 52 insertions, 1 deletions
diff --git a/util/cbmem/cbmem.c b/util/cbmem/cbmem.c
index 31950e22a3..1cb7b8dd40 100644
--- a/util/cbmem/cbmem.c
+++ b/util/cbmem/cbmem.c
@@ -21,6 +21,8 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
#include "stdlib.h"
#include "boot/coreboot_tables.h"
@@ -32,6 +34,8 @@ typedef uint64_t u64;
#include "cbmem.h"
#include "timestamp.h"
+#define CBMEM_VERSION "1.0"
+
/* File descriptor used to access /dev/mem */
static FILE* fd;
@@ -246,11 +250,58 @@ static void dump_timestamps(const struct timestamp_table *tst_p)
}
}
+void print_version(void)
+{
+ printf("cbmem v%s -- ", CBMEM_VERSION);
+ printf("Copyright (C) 2012 The ChromiumOS Authors. All rights reserved.\n\n");
+ printf(
+ "This program is free software: you can redistribute it and/or modify\n"
+ "it under the terms of the GNU General Public License as published by\n"
+ "the Free Software Foundation, version 2 of the License.\n\n"
+ "This program is distributed in the hope that it will be useful,\n"
+ "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+ "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
+ "GNU General Public License for more details.\n\n"
+ "You should have received a copy of the GNU General Public License\n"
+ "along with this program. If not, see <http://www.gnu.org/licenses/>.\n\n");
+}
+
+void print_usage(const char *name)
+{
+ printf("usage: %s [-vh?]\n", name);
+ printf("\n"
+ " -v | --version: print the version\n"
+ " -h | --help: print this help\n"
+ "\n");
+ exit(1);
+}
int main(int argc, char** argv)
{
int j;
- static const int possible_base_addresses[] = {0, 0xf0000};
+ static const int possible_base_addresses[] = { 0, 0xf0000 };
+
+ int opt, option_index = 0;
+ static struct option long_options[] = {
+ {"version", 0, 0, 'v'},
+ {"help", 0, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+ while ((opt = getopt_long(argc, argv, "vh?",
+ long_options, &option_index)) != EOF) {
+ switch (opt) {
+ case 'v':
+ print_version();
+ exit(0);
+ break;
+ case 'h':
+ case '?':
+ default:
+ print_usage(argv[0]);
+ exit(0);
+ break;
+ }
+ }
fd = fopen("/dev/mem", "r");
if (!fd) {