Fix emu on mipsel.

* conf/Makefile.common (CFLAGS_PLATFORM): Add -mflush-func
	=grub_cpu_flush_cache on all mips and not only yeeloong.
	* configure.ac (COND_mips): New conditional.
	* grub-core/Makefile.am (KERNEL_HEADER_FILES): Add libgcc on all
	platforms.
	* grub-core/kern/emu/cache.S (__mips__): Use _flush_cache.
	* grub-core/kern/emu/full.c (grub_arch_dl_init_linker)
	[GRUB_LINKER_HAVE_INIT]: New function.
	(grub_emu_post_init): Likewise.
	* grub-core/kern/emu/lite.c (grub_emu_post_init): Likewise.
	* grub-core/kern/emu/main.c: Use grub_emu_post_init.
	* include/grub/cache.h (_mips): Include mips/cache.h.
	* include/grub/disk.h [GRUB_UTIL || GRUB_MACHINE_EMU]: Add missing
	LVM and RAID prototypes.
	* include/grub/emu/misc.h (grub_emu_post_init): New proto.
	* include/grub/mips/time.h (grub_cpu_idle) [GRUB_MACHINE_EMU]: New
	function.

grub-core/kern/emu/cache.S

@@ -7,7 +7,20 @@
 #elif defined(__sparc__)
 #include "../sparc64/cache.S"
 #elif defined(__mips__)
-#include "../mips/cache.S"
+/* On MIPS we must go through standard functions.  */
+#include <grub/symbol.h>
+
+FUNCTION (grub_cpu_flush_cache)
+FUNCTION (grub_arch_sync_caches)
+	.set nomacro
+	.set noreorder
+	lui $t0, %hi(_flush_cache)
+	addui $t0, $t0, %lo(_flush_cache)
+	move $a3, $zero
+	jr $t0
+	 nop
+	.set reorder
+	.set macro
 #elif defined(__powerpc__)
 #include "../powerpc/cache.S"
 #else

grub-core/kern/emu/full.c

@@ -22,6 +22,7 @@
 #include <grub/kernel.h>
 #include <grub/misc.h>
 #include <grub/emu/misc.h>
+#include <grub/disk.h>
 
 void
 grub_register_exported_symbols (void)
@@ -48,3 +49,21 @@ grub_emu_init (void)
 {
   grub_no_autoload = 1;
 }
+
+#ifdef GRUB_LINKER_HAVE_INIT
+void
+grub_arch_dl_init_linker (void)
+{
+}
+#endif
+
+void
+grub_emu_post_init (void)
+{
+  grub_lvm_fini ();
+  grub_mdraid_fini ();
+  grub_raid_fini ();
+  grub_raid_init ();
+  grub_mdraid_init ();
+  grub_lvm_init ();
+}

grub-core/kern/emu/lite.c

@@ -38,3 +38,8 @@ grub_emu_init (void)
 {
   return;
 }
+
+void
+grub_emu_post_init (void)
+{
+}

grub-core/kern/emu/main.c

@@ -197,12 +197,7 @@ main (int argc, char *argv[])
 
   grub_init_all ();
 
-  grub_lvm_fini ();
-  grub_mdraid_fini ();
-  grub_raid_fini ();
-  grub_raid_init ();
-  grub_mdraid_init ();
-  grub_lvm_init ();
+  grub_emu_post_init ();
 
   /* Make sure that there is a root device.  */
   if (! root_dev)