Merge pull request #14 from coreos/gnu

Merge upstream GRUB changes

grub-core/kern/arm/efi/init.c

@@ -67,7 +67,7 @@ grub_machine_fini (int flags)
 
   b = grub_efi_system_table->boot_services;
 
-  efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_PERIODIC, 0);
+  efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_CANCEL, 0);
   efi_call_1 (b->close_event, tmr_evt);
 
   grub_efi_fini ();

grub-core/kern/compiler-rt.c

@@ -381,9 +381,24 @@ __aeabi_idiv (grub_int32_t a, grub_int32_t b)
   __attribute__ ((alias ("__divsi3")));
 void *__aeabi_memcpy (void *dest, const void *src, grub_size_t n)
   __attribute__ ((alias ("grub_memcpy")));
+void *__aeabi_memcpy4 (void *dest, const void *src, grub_size_t n)
+  __attribute__ ((alias ("grub_memcpy")));
+void *__aeabi_memcpy8 (void *dest, const void *src, grub_size_t n)
+  __attribute__ ((alias ("grub_memcpy")));
 void *__aeabi_memset (void *s, int c, grub_size_t n)
   __attribute__ ((alias ("memset")));
 
+void
+__aeabi_memclr (void *s, grub_size_t n)
+{
+  grub_memset (s, 0, n);
+}
+
+void __aeabi_memclr4 (void *s, grub_size_t n)
+  __attribute__ ((alias ("__aeabi_memclr")));
+void __aeabi_memclr8 (void *s, grub_size_t n)
+  __attribute__ ((alias ("__aeabi_memclr")));
+
 int
 __aeabi_ulcmp (grub_uint64_t a, grub_uint64_t b)
 {

grub-core/kern/efi/efi.c

@@ -27,6 +27,7 @@
 #include <grub/term.h>
 #include <grub/kernel.h>
 #include <grub/mm.h>
+#include <grub/loader.h>
 
 /* The handle of GRUB itself. Filled in by the startup code.  */
 grub_efi_handle_t grub_efi_image_handle;
@@ -156,7 +157,7 @@ grub_efi_get_loaded_image (grub_efi_handle_t image_handle)
 void
 grub_exit (void)
 {
-  grub_efi_fini ();
+  grub_machine_fini (GRUB_LOADER_FLAG_NORETURN);
   efi_call_4 (grub_efi_system_table->boot_services->exit,
               grub_efi_image_handle, GRUB_EFI_SUCCESS, 0, 0);
   for (;;) ;
@@ -205,6 +206,7 @@ grub_efi_set_variable(const char *var, const grub_efi_guid_t *guid,
 			| GRUB_EFI_VARIABLE_BOOTSERVICE_ACCESS
 			| GRUB_EFI_VARIABLE_RUNTIME_ACCESS),
 		       datasize, data);
+  grub_free (var16);
   if (status == GRUB_EFI_SUCCESS)
     return GRUB_ERR_NONE;
 
@@ -236,8 +238,11 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid,
 
   status = efi_call_5 (r->get_variable, var16, guid, NULL, &datasize, NULL);
 
-  if (!datasize)
-    return NULL;
+  if (status != GRUB_EFI_BUFFER_TOO_SMALL || !datasize)
+    {
+      grub_free (var16);
+      return NULL;
+    }
 
   data = grub_malloc (datasize);
   if (!data)
@@ -422,6 +427,47 @@ grub_efi_get_device_path (grub_efi_handle_t handle)
 				 GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
 }
 
+/* Return the device path node right before the end node.  */
+grub_efi_device_path_t *
+grub_efi_find_last_device_path (const grub_efi_device_path_t *dp)
+{
+  grub_efi_device_path_t *next, *p;
+
+  if (GRUB_EFI_END_ENTIRE_DEVICE_PATH (dp))
+    return 0;
+
+  for (p = (grub_efi_device_path_t *) dp, next = GRUB_EFI_NEXT_DEVICE_PATH (p);
+       ! GRUB_EFI_END_ENTIRE_DEVICE_PATH (next);
+       p = next, next = GRUB_EFI_NEXT_DEVICE_PATH (next))
+    ;
+
+  return p;
+}
+
+/* Duplicate a device path.  */
+grub_efi_device_path_t *
+grub_efi_duplicate_device_path (const grub_efi_device_path_t *dp)
+{
+  grub_efi_device_path_t *p;
+  grub_size_t total_size = 0;
+
+  for (p = (grub_efi_device_path_t *) dp;
+       ;
+       p = GRUB_EFI_NEXT_DEVICE_PATH (p))
+    {
+      total_size += GRUB_EFI_DEVICE_PATH_LENGTH (p);
+      if (GRUB_EFI_END_ENTIRE_DEVICE_PATH (p))
+	break;
+    }
+
+  p = grub_malloc (total_size);
+  if (! p)
+    return 0;
+
+  grub_memcpy (p, dp, total_size);
+  return p;
+}
+
 static void
 dump_vendor_path (const char *type, grub_efi_vendor_device_path_t *vendor)
 {

grub-core/kern/emu/hostdisk.c

@@ -422,7 +422,7 @@ read_device_map (const char *dev_map)
   char buf[1024];	/* XXX */
   int lineno = 0;
 
-  if (dev_map[0] == '\0')
+  if (!dev_map || dev_map[0] == '\0')
     {
       grub_util_info ("no device.map");
       return;

grub-core/kern/mips/cache.S

@@ -1,10 +1,8 @@
 
 #include <grub/symbol.h>
-#include <grub/cpu/kernel.h>
 
 	.set noreorder
 	.set nomacro
-	mips_attributes
 
 FUNCTION (grub_arch_sync_caches)
 #include "cache_flush.S"

grub-core/kern/mips/startup.S

@@ -21,7 +21,6 @@
 #include <grub/offsets.h>
 #include <grub/machine/memory.h>
 #include <grub/machine/kernel.h>
-#include <grub/cpu/kernel.h>
 #include <grub/offsets.h>
 
 #define BASE_ADDR 8	
@@ -29,7 +28,6 @@
 	.globl __start, _start, start
 	.set noreorder
 	.set nomacro
-	mips_attributes
 __start:
 _start:
 start: