This patch introduces support for command line arguments to Plan 9.
Plan 9 generally dedicates a small region of kernel memory (known
as CONFADDR) for runtime configuration. A new environment variable
named confaddr was introduced to indicate this location when copying
arguments.
Signed-off-by: Steven Stallion <sstall...@gmail.com>
---
common/cmd_bootm.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 05130b6..5c62271 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -1533,6 +1533,7 @@ static int do_bootm_plan9(int flag, int argc, char *
const argv[],
bootm_headers_t *images)
{
void (*entry_point)(void);
+ char *s;
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
@@ -1544,6 +1545,24 @@ static int do_bootm_plan9(int flag, int argc, char *
const argv[],
}
#endif
+ if ((s = getenv("confaddr")) != NULL) {
+ char *confaddr = (char *)simple_strtoul(s, NULL, 16);
+
+ if (argc > 2) {
+ int i;
+
+ s = confaddr;
+ for (i = 2; i < argc; i++) {
+ if (i > 2)
+ *s++ = '\n';
+ strcpy(s, argv[i]);
+ s += strlen(argv[i]);
+ }
+ } else if ((s = getenv("bootargs")) != NULL) {
+ strcpy(confaddr, s);
+ }
+ }
+
entry_point = (void (*)(void))images->ep;
printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
--
1.7.0.4
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