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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/x86/boot/compressed/cmdline.c
Initial import
Diffstat (limited to 'arch/x86/boot/compressed/cmdline.c')
-rw-r--r--arch/x86/boot/compressed/cmdline.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
new file mode 100644
index 000000000..b68e3033e
--- /dev/null
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -0,0 +1,33 @@
+#include "misc.h"
+
+#if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
+
+static unsigned long fs;
+static inline void set_fs(unsigned long seg)
+{
+ fs = seg << 4; /* shift it back */
+}
+typedef unsigned long addr_t;
+static inline char rdfs8(addr_t addr)
+{
+ return *((char *)(fs + addr));
+}
+#include "../cmdline.c"
+static unsigned long get_cmd_line_ptr(void)
+{
+ unsigned long cmd_line_ptr = real_mode->hdr.cmd_line_ptr;
+
+ cmd_line_ptr |= (u64)real_mode->ext_cmd_line_ptr << 32;
+
+ return cmd_line_ptr;
+}
+int cmdline_find_option(const char *option, char *buffer, int bufsize)
+{
+ return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
+}
+int cmdline_find_option_bool(const char *option)
+{
+ return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
+}
+
+#endif