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authorStefan Reinauer <stefan.reinauer@coreboot.org>2013-01-07 13:37:12 -0800
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-01-08 01:24:11 +0100
commit19f8756f0008cf74a472177642cc44f00c05934f (patch)
tree2bcad6ec08ad22fd7085f6148e7aafed3b1e7bfe /util
parent1665bb3896e49f84a28e24176734f447f3a0899b (diff)
downloadcoreboot-19f8756f0008cf74a472177642cc44f00c05934f.tar.xz
cbmem utility: Add option to dump cbmem console
This adds an option to the cbmem utility to dump the cbmem console. To keep the utility backwards compatible, specifying -c disables printing of time stamps. To print both console and time stamps, run the utility with -ct Change-Id: Idd2dbf32c3c44f857c2f41e6c817c5ab13155d6f Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/2114 Tested-by: build bot (Jenkins) Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Diffstat (limited to 'util')
-rw-r--r--util/cbmem/cbmem.c61
1 files changed, 58 insertions, 3 deletions
diff --git a/util/cbmem/cbmem.c b/util/cbmem/cbmem.c
index df00684730..4c0bd6837f 100644
--- a/util/cbmem/cbmem.c
+++ b/util/cbmem/cbmem.c
@@ -283,6 +283,43 @@ static void dump_timestamps(void)
unmap_memory();
}
+/* dump the cbmem console */
+static void dump_console(void)
+{
+ void *console_p;
+ char *console_c;
+ uint32_t size;
+
+ if (console.tag != LB_TAG_CBMEM_CONSOLE) {
+ fprintf(stderr, "No console found in coreboot table.\n");
+ return;
+ }
+
+ console_p = map_memory((unsigned long)console.cbmem_addr);
+ /* The in-memory format of the console area is:
+ * u32 size
+ * u32 cursor
+ * char console[size]
+ * Hence we have to add 8 to get to the actual console string.
+ */
+ size = *(uint32_t *)console_p;
+ console_c = malloc(size + 1);
+ if (!console_c) {
+ fprintf(stderr, "Not enough memory for console.\n");
+ exit(1);
+ }
+
+ memcpy(console_c, console_p + 8, size);
+ console_c[size] = 0;
+
+ printf("%s", console_c);
+
+ free(console_c);
+
+ unmap_memory();
+}
+
+
void print_version(void)
{
printf("cbmem v%s -- ", CBMEM_VERSION);
@@ -303,6 +340,9 @@ void print_usage(const char *name)
{
printf("usage: %s [-vh?]\n", name);
printf("\n"
+ " -c | --console: print cbmem console\n"
+ " -t | --timestamps: print timestamp information\n"
+ " -V | --verbose: verbose (debugging) output\n"
" -v | --version: print the version\n"
" -h | --help: print this help\n"
"\n");
@@ -314,18 +354,30 @@ int main(int argc, char** argv)
int j;
static const int possible_base_addresses[] = { 0, 0xf0000 };
- int print_timestamps = 1;
+ int print_defaults = 1;
+ int print_console = 0;
+ int print_timestamps = 0;
int opt, option_index = 0;
static struct option long_options[] = {
+ {"console", 0, 0, 'c'},
+ {"timestamps", 0, 0, 't'},
{"verbose", 0, 0, 'V'},
{"version", 0, 0, 'v'},
{"help", 0, 0, 'h'},
{0, 0, 0, 0}
};
- while ((opt = getopt_long(argc, argv, "Vvh?",
+ while ((opt = getopt_long(argc, argv, "ctVvh?",
long_options, &option_index)) != EOF) {
switch (opt) {
+ case 'c':
+ print_console = 1;
+ print_defaults = 0;
+ break;
+ case 't':
+ print_timestamps = 1;
+ print_defaults = 0;
+ break;
case 'V':
verbose = 1;
break;
@@ -355,7 +407,10 @@ int main(int argc, char** argv)
break;
}
- if (print_timestamps)
+ if (print_console)
+ dump_console();
+
+ if (print_defaults || print_timestamps)
dump_timestamps();
close(fd);