upstream/1.1.0_cvsrelease/1.1.0_cvs

1 files changed, 37 insertions, 0 deletions

diff --git a/gnu/usr.bin/ld/sparc/md-static-funcs.c b/gnu/usr.bin/ld/sparc/md-static-funcs.c
new file mode 100644
index 000000000000..8446daa5256c
--- /dev/null
+++ b/gnu/usr.bin/ld/sparc/md-static-funcs.c
@@ -0,0 +1,37 @@
+
+/*
+ *	$Id: md-static-funcs.c,v 1.2 1993/12/11 12:02:08 jkh Exp $
+ *
+ * Simple SPARC relocations for the benefit of self-relocation of ld.so
+ * avoiding the use of global variables (ie. reloc_bitshift[] et. al.).
+ * Only types supported are RELOC_32 and RELOC_RELATIVE.
+ *
+ * This *must* be a static function, so it is not called through a jmpslot.
+ */
+static void
+md_relocate_simple(r, relocation, addr)
+struct relocation_info	*r;
+long			relocation;
+char			*addr;
+{
+	register unsigned long	mask;
+	register unsigned long	shift;
+
+	switch (r->r_type) {
+	case RELOC_32:
+		mask = 0xffffffff;
+		shift = 0;
+		break;
+	case RELOC_RELATIVE:
+		mask = 0x003fffff;
+		shift = 10;
+		break;
+	}
+	relocation += (*(long *)addr & mask) << shift;
+	relocation >>= shift;
+	relocation &= mask;
+
+	*(long *) (addr) &= ~mask;
+	*(long *) (addr) |= relocation;
+}
+