arm-kernel-shim: Update DSM-G600 kernel shim to supply a default cmline,

if the cmdline passed in from the bootloader is empty or missing.

1 files changed, 45 insertions, 0 deletions

diff --git a/packages/arm-kernel-shim/files/cmdline_if_none.patch b/packages/arm-kernel-shim/files/cmdline_if_none.patch
new file mode 100644
index 0000000000..460f7be090
--- /dev/null
+++ b/packages/arm-kernel-shim/files/cmdline_if_none.patch
@@ -0,0 +1,45 @@
+--- arm-kernel-shim-1.3/main.c.orig	2007-02-14 19:05:35.000000000 -0600
++++ arm-kernel-shim-1.3/main.c	2007-02-14 22:48:06.000000000 -0600
+@@ -153,6 +153,42 @@
+   p->hdr.tag		= ATAG_NONE;
+   p->hdr.size		= 0;
+ 
++#else
++
++#ifdef CMDLINE_IF_NONE
++
++  /* Walk over the ATAG list, we need to find the end of the list.
++   * If we find a command line tag, stash away the pointer to the
++   * actual command line itself.  Note that the implementation
++   * below assumes a single ATAG_CMDLINE passed in from the
++   * bootloader, which may not be a good assumption in all cases.
++   */
++  {
++    char *c = 0;
++    for_each_tag(p, (struct tag*) PHYS_PARAMS)
++      if (p->hdr.tag == ATAG_CMDLINE) c = p->u.cmdline.cmdline;
++
++  /* p -> final tag (ATAG_NONE), and c -> command line if found */
++  /* if no ATAG_CMDLINE, or command line is empty, add the default one. */
++
++    if ((c == 0) || (*c == 0)) {
++      p->hdr.tag = ATAG_CMDLINE;
++      p->hdr.size = tag_size (tag_cmdline)
++        + (sizeof (cmdline)+3)/4 - 1;
++      {
++        const char* sz = cmdline + offset;
++        int i;
++        for (i = 0; i < sizeof (cmdline); ++i)
++          p->u.cmdline.cmdline[i] = sz[i];
++      }
++      p = tag_next (p);
++      p->hdr.tag = ATAG_NONE;
++      p->hdr.size = 0;
++    }
++  }
++
++#endif
++
+ #endif
+ 
+ 	/* Pass control to the kernel */