memset/memcmp/memmove aliases

[Hollis Blanchard]

I just tried to build grub2 from cvs on PPC and got this error:
        grubof-fs_hfs.o(.text+0xbc4): In function `grub_hfs_iterate_dir':
        fs/hfs.c:588: undefined reference to `memset'
        grubof-fs_hfs.o(.text+0xe74): In function `dir_hook':
        fs/hfs.c:728: undefined reference to `memset'

The lines in question are these:
	588:	struct grub_hfs_catalog_key key = {0, grub_cpu_to_be32 (dir), 0, 
""};
        728:    char fname[32] = { 0 };
gcc is turning these into memset calls, despite the fact that this 
object was built with -fno-builtin.

http://gcc.gnu.org/onlinedocs/gcc-3.3.1/gcc/Standards.html#Standards 
says "Most of the compiler support routines used by GCC are present in 
libgcc, but there are a few exceptions. GCC requires the freestanding 
environment provide memcpy, memmove, memset and memcmp."

memcpy has already been aliased to grub_memmove; this patch adds 
aliases for the other three.

-Hollis

2004-08-29      Hollis Blanchard        <address@hidden>
        * kern/misc.c: add aliases for memmove, memcmp, and memset to meet
        gcc "freestanding environment" requirements.

Index: kern/misc.c
===================================================================
RCS file: /cvsroot/grub/grub2/kern/misc.c,v
retrieving revision 1.14
diff -u -r1.14 misc.c
--- kern/misc.c 28 Aug 2004 13:14:29 -0000      1.14
+++ kern/misc.c 29 Aug 2004 22:48:11 -0000
@@ -45,6 +45,8 @@

   return dest;
 }
+void *memmove (void *dest, const void *src, grub_size_t n)
+  __attribute__ ((alias ("grub_memmove")));
 /* GCC emits references to memcpy() for struct copies etc.  */
 void *memcpy (void *dest, const void *src, grub_size_t n)
   __attribute__ ((alias ("grub_memmove")));
@@ -134,6 +136,8 @@

   return 0;
 }
+void *memcmp (const void *s1, const void *s2, grub_size_t n)
+  __attribute__ ((alias ("grub_memcmp")));

 int
 grub_strcmp (const char *s1, const char *s2)
@@ -359,6 +363,9 @@

   return s;
 }
+/* GCC emits references to memset() for struct initialization etc.  */
+void *memset (void *s, int c, grub_size_t n)
+  __attribute__ ((alias ("grub_memset")));

 grub_size_t
 grub_strlen (const char *s)