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-rw-r--r--kern/bootstrap.c61
1 files changed, 43 insertions, 18 deletions
diff --git a/kern/bootstrap.c b/kern/bootstrap.c
index c0de921..a504115 100644
--- a/kern/bootstrap.c
+++ b/kern/bootstrap.c
@@ -135,6 +135,31 @@ void bootstrap_create()
panic ("cannot set boot-script variable %s: %s",
"kernel-command-line", boot_script_error_string (losers));
+ {
+ /* Set the same boot script variables that the old Hurd's
+ serverboot did, so an old Hurd and boot script previously
+ used with serverboot can be used directly with this kernel. */
+
+ char *flag_string = alloca(1024);
+ char *root_string = alloca(1024);
+
+ /*
+ * Get the (compatibility) boot flags and root name strings.
+ */
+ get_compat_strings(flag_string, root_string);
+
+ losers = boot_script_set_variable ("boot-args", VAL_STR,
+ (int) flag_string);
+ if (losers)
+ panic ("cannot set boot-script variable %s: %s",
+ "boot-args", boot_script_error_string (losers));
+ losers = boot_script_set_variable ("root-device", VAL_STR,
+ (int) root_string);
+ if (losers)
+ panic ("cannot set boot-script variable %s: %s",
+ "root-device", boot_script_error_string (losers));
+ }
+
#if OSKIT_MACH
{
/* The oskit's "environ" array contains all the words from
@@ -158,24 +183,24 @@ void bootstrap_create()
}
#else /* GNUmach, not oskit-mach */
{
- char *flag_string = alloca(1024);
- char *root_string = alloca(1024);
-
- /*
- * Get the (compatibility) boot flags and root name strings.
- */
- get_compat_strings(flag_string, root_string);
-
- losers = boot_script_set_variable ("boot-args", VAL_STR,
- (int) flag_string);
- if (losers)
- panic ("cannot set boot-script variable %s: %s",
- "boot-args", boot_script_error_string (losers));
- losers = boot_script_set_variable ("root-device", VAL_STR,
- (int) root_string);
- if (losers)
- panic ("cannot set boot-script variable %s: %s",
- "root-device", boot_script_error_string (losers));
+ /* Turn each `FOO=BAR' word in the command line into a boot script
+ variable ${FOO} with value BAR. This matches what we get from
+ oskit's environ in the oskit-mach case (above). */
+
+ int len = strlen (kernel_cmdline) + 1;
+ char *s = memcpy (alloca (len), kernel_cmdline, len);
+ char *word;
+ while ((word = strsep (&s, " \t")) != 0)
+ {
+ char *eq = strchr (word, '=');
+ if (eq == 0)
+ continue;
+ *eq++ = '\0';
+ losers = boot_script_set_variable (word, VAL_STR, (int) eq);
+ if (losers)
+ panic ("cannot set boot-script variable %s: %s",
+ word, boot_script_error_string (losers));
+ }
}
#endif