avoid obstack_printf for very large strings (it's cheating with a fixed size buffer)

[r25395]

diff --git a/main.c b/main.c
index 6e55b36..b4600e7 100644 (file)
--- a/main.c
+++ b/main.c
@@ -232,7 +232,7 @@ static void lextest(FILE *in, const char *fname)
 
 static void add_flag(struct obstack *obst, const char *format, ...)
 {
-       char buf[4096];
+       char buf[65536];
        va_list ap;
 
        va_start(ap, format);
@@ -318,7 +318,9 @@ static FILE *preprocess(const char *fname)
                }
        }
        if (flags[0] != '\0') {
-               obstack_printf(&cppflags_obst, " %s", flags);
+               size_t len = strlen(flags);
+               obstack_1grow(&cppflags_obst, ' ');
+               obstack_grow(&cppflags_obst, flags, len);
        }
        add_flag(&cppflags_obst, fname);
 
@@ -339,7 +341,7 @@ static FILE *preprocess(const char *fname)
 
 static void assemble(const char *out, const char *in)
 {
-       char buf[4096];
+       char buf[65536];
 
        snprintf(buf, sizeof(buf), "%s %s -o %s", ASSEMBLER, in, out);
        if (verbose) {