Added call to trap signals.

util/led/output.c

@@ -0,0 +1,80 @@
+#ifndef lint
+static char rcsid[] = "$Header$";
+#endif
+
+#include "out.h"
+#include "const.h"
+#include "memory.h"
+
+extern struct outhead	outhead;
+extern bool		incore;
+extern int		flagword;
+
+/*
+ * We have counted all relocation structs but we know only now if
+ * these must be emitted.We add all names here,unless the -s(trip)
+ * flag was given.
+ * If this flag is given we don't need the string table either.
+ */
+beginoutput()
+{
+	extern ushort	NLocals, NGlobals;
+	extern long	NLChars, NGChars;
+
+	if (incore)
+		generate_section_names();
+
+	if (!(flagword & RFLAG))
+		outhead.oh_nrelo = (ushort)0;
+	if (flagword & SFLAG) {
+		outhead.oh_nname = (ushort)0;
+		outhead.oh_nchar = (long)0;
+	} else {
+		outhead.oh_nname = NLocals + NGlobals + outhead.oh_nsect;
+		outhead.oh_nchar = NLChars + NGChars;
+	}
+	trap_signals();
+	if (!incore)
+		begin_write();
+}
+
+/*
+ * Generate names for all sections and put them after the global names.
+ * Section names are used for relocation.
+ */
+static
+generate_section_names()
+{
+	register struct outname	*name;
+	register int		sectindex;
+	register long		size;
+	extern struct outsect	outsect[];
+	extern char		*core_alloc();
+
+	size = (long)outhead.oh_nsect * sizeof(struct outname); 
+	name = (struct outname *)core_alloc(ALLOGLOB, size);
+	if (name == (struct outname *)0)
+		return;
+
+	for (sectindex = 0; sectindex < outhead.oh_nsect; sectindex++, name++) {
+		name->on_foff = (long)0;	/* No string name. */
+		name->on_type = (S_MIN + sectindex) | S_SCT;
+		name->on_desc = (ushort)0;
+		name->on_valu = outsect[sectindex].os_base;
+	}
+}
+
+/*
+ * If we didn't keep the whole output file in core, most of it has been
+ * written out, and we just finish that.
+ * If we did, we write out our pieces of core.
+ */
+endoutput()
+{
+	if (!incore) {
+		if (!(flagword & SFLAG))
+			end_write();
+	} else {
+		write_bytes();
+	}
+}