scc

simple C compiler
git clone git://git.2f30.org/scc
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commit 7d178752ef2032277b760b3b7d70956698938a18
parent 9e267438dbc681f048234dc5e34317877bdf17c3
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sat,  9 Sep 2017 07:33:20 +0200

[as] Allow instructions without arguments

In that case the argument string is NULL and as was segfaulting.

Diffstat:
as/main.c | 2+-
as/target/x86/gen.awk | 2+-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/as/main.c b/as/main.c @@ -63,7 +63,7 @@ getargs(char *s) Arg *ap; static Arg args[NARGS]; - for (ap = args; ; ++ap) { + for (ap = args; s; ++ap) { while (isspace(*s)) ++s; if (*s == '\0') diff --git a/as/target/x86/gen.awk b/as/target/x86/gen.awk @@ -72,7 +72,7 @@ function str2args(s, args, i, out) a = substr(a, RLENGTH+1) if (a ~ /^\+$/) { return out "|AREP" - } else { + } else if (a != "") { print "wrong arg", a exit 1 }