scc

commit 9232dc4ce2496e0616515b01c22bbb4680646f92
parent 1d12e3bc0e39a5809b233fcf39ea0bb17e6b8384
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 28 Sep 2017 09:47:31 +0100

[as] Set recovery point

Diffstat:
M
as/main.c
 | 
5
+++++
M
as/parser.c
 | 
3
+++

2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/as/main.c b/as/main.c
@@ -1,6 +1,7 @@
 static char sccsid[] = "@(#) ./as/main.c";
 
 #include <ctype.h>
+#include <setjmp.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -58,12 +59,16 @@ dopass(char *fname)
 	struct line line;
 	FILE *fp;
 	extern int nerrors;
+	extern jmp_buf recover;
 
 	if ((fp = fopen(fname, "r")) == NULL)
 		die("as: error opening '%s'", fname);
 
 	isections();
 	while (nextline(fp, &line)) {
+		if (setjmp(recover))
+			continue;
+
 		linesym = NULL;
 
 		if (line.label)
diff --git a/as/parser.c b/as/parser.c
@@ -1,5 +1,6 @@
 static char sccsid[] = "@(#) ./as/parser.c";
 #include <ctype.h>
+#include <setjmp.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -13,6 +14,7 @@ static char sccsid[] = "@(#) ./as/parser.c";
 
 char *filename;
 int nerrors;
+jmp_buf recover;
 
 static unsigned lineno;
 
@@ -30,6 +32,7 @@ error(char *msg, ...)
 
 	if (nerrors == 10)
 		die("as: too many errors");
+	longjmp(recover, 1);
 }
 
 Node **