[PATCH v7 1/3] arm64: add "--nounzip" option support in xen_module command

[fu.wei@linaro.org]

From: Fu Wei <fu.wei@linaro.org>

This patch adds "--nounzip" option support in order to
be compatible with the module command of multiboot on other architecture,
by this way we can simplify grub-mkconfig support code.

This patch also allow us to use zip compressed module(like Linux kernel
"vmlinuz*" for Dom0).

Signed-off-by: Fu Wei <fu.wei@linaro.org>
---
 grub-core/loader/arm64/xen_boot.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/grub-core/loader/arm64/xen_boot.c b/grub-core/loader/arm64/xen_boot.c
index a914eb8..0878364 100644
--- a/grub-core/loader/arm64/xen_boot.c
+++ b/grub-core/loader/arm64/xen_boot.c
@@ -20,6 +20,7 @@
 #include <grub/charset.h>
 #include <grub/command.h>
 #include <grub/err.h>
+#include <grub/env.h>
 #include <grub/file.h>
 #include <grub/fdt.h>
 #include <grub/list.h>
@@ -379,6 +380,20 @@ grub_cmd_xen_module (grub_command_t cmd __attribute__((unused)),
 
   struct xen_boot_binary *module = NULL;
   grub_file_t file = 0;
+  int nounzip = 0;
+
+  if (!argc)
+    {
+      grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+      goto fail;
+    }
+
+  if (grub_strcmp (argv[0], "--nounzip") == 0)
+    {
+      argv++;
+      argc--;
+      nounzip = 1;
+    }
 
   if (!argc)
     {
@@ -403,6 +418,8 @@ grub_cmd_xen_module (grub_command_t cmd __attribute__((unused)),
 
   grub_dprintf ("xen_loader", "Init module and node info\n");
 
+  if (nounzip)
+    grub_file_filter_disable_compression ();
   file = grub_file_open (argv[0]);
   if (!file)
     goto fail;
-- 
2.9.3


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