Imported Upstream version 1.3upstream/1.3

1 files changed, 104 insertions, 0 deletions

diff --git a/src/cmd/ld/pass.c b/src/cmd/ld/pass.c
new file mode 100644
index 000000000..788b7c75a
--- /dev/null
+++ b/src/cmd/ld/pass.c
@@ -0,0 +1,104 @@
+// Inferno utils/6l/pass.c
+// http://code.google.com/p/inferno-os/source/browse/utils/6l/pass.c
+//
+//	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
+//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
+//	Portions Copyright © 1997-1999 Vita Nuova Limited
+//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
+//	Portions Copyright © 2004,2006 Bruce Ellis
+//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
+//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
+//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Code and data passes.
+
+#include	"l.h"
+#include	"../ld/lib.h"
+#include "../../pkg/runtime/stack.h"
+
+void
+follow(void)
+{
+	LSym *s;
+
+	if(debug['v'])
+		Bprint(&bso, "%5.2f follow\n", cputime());
+	Bflush(&bso);
+	
+	for(s = ctxt->textp; s != nil; s = s->next)
+		ctxt->arch->follow(ctxt, s);
+}
+
+void
+patch(void)
+{
+	LSym *s;
+
+	if(debug['v'])
+		Bprint(&bso, "%5.2f mkfwd\n", cputime());
+	Bflush(&bso);
+	for(s = ctxt->textp; s != nil; s = s->next)
+		mkfwd(s);
+	if(debug['v'])
+		Bprint(&bso, "%5.2f patch\n", cputime());
+	Bflush(&bso);
+
+	if(flag_shared) {
+		s = linklookup(ctxt, "init_array", 0);
+		s->type = SINITARR;
+		s->reachable = 1;
+		s->hide = 1;
+		addaddr(ctxt, s, linklookup(ctxt, INITENTRY, 0));
+	}
+	
+	for(s = ctxt->textp; s != nil; s = s->next)
+		linkpatch(ctxt, s);
+}
+
+void
+dostkoff(void)
+{
+	LSym *s;
+
+	for(s = ctxt->textp; s != nil; s = s->next)
+		ctxt->arch->addstacksplit(ctxt, s);
+}
+
+void
+span(void)
+{
+	LSym *s;
+
+	if(debug['v'])
+		Bprint(&bso, "%5.2f span\n", cputime());
+
+	for(s = ctxt->textp; s != nil; s = s->next)
+		ctxt->arch->assemble(ctxt, s);
+}
+
+void
+pcln(void)
+{
+	LSym *s;
+
+	for(s = ctxt->textp; s != nil; s = s->next)
+		linkpcln(ctxt, s);
+}