From e4ae77c7bbe01637e7164fd1420b7d8fecfe2a29 Mon Sep 17 00:00:00 2001
From: grischka <grischka>
Date: Wed, 17 Jun 2009 02:10:42 +0200
Subject: [PATCH] tcc_preprocess: add gcc-style include-depth flags
# 1 "main.c"
# 1 "include/stdio.h" 1
# 123 "include/stdio.h" 3
# 10 "main.c" 2
flags: 1: level++; 3: same-level 2: level--
---
tccpp.c | 29 ++++++++++++++++++++++-------
1 file changed, 22 insertions(+), 7 deletions(-)
diff --git a/tccpp.c b/tccpp.c
index ff17d8be..7074343c 100644
--- a/tccpp.c
+++ b/tccpp.c
@@ -2895,8 +2895,9 @@ void preprocess_new()
static int tcc_preprocess(TCCState *s1)
{
Sym *define_start;
- BufferedFile *file_ref;
- int token_seen, line_ref;
+ BufferedFile *file_ref, **iptr, **iptr_new;
+ int token_seen, line_ref, d;
+ const char *s;
preprocess_init(s1);
define_start = define_stack;
@@ -2908,24 +2909,38 @@ static int tcc_preprocess(TCCState *s1)
line_ref = 0;
file_ref = NULL;
+ iptr = s1->include_stack_ptr;
for (;;) {
next();
if (tok == TOK_EOF) {
break;
+ } else if (file != file_ref) {
+ goto print_line;
} else if (tok == TOK_LINEFEED) {
if (!token_seen)
continue;
++line_ref;
token_seen = 0;
} else if (!token_seen) {
- int d = file->line_num - line_ref;
- if (file != file_ref || d < 0 || d >= 8)
- fprintf(s1->outfile, "# %d \"%s\"\n", file->line_num, file->filename);
- else
+ d = file->line_num - line_ref;
+ if (file != file_ref || d < 0 || d >= 8) {
+print_line:
+ iptr_new = s1->include_stack_ptr;
+ s = iptr_new > iptr ? " 1"
+ : iptr_new < iptr ? " 2"
+ : iptr_new > s1->include_stack ? " 3"
+ : ""
+ ;
+ iptr = iptr_new;
+ fprintf(s1->outfile, "# %d \"%s\"%s\n", file->line_num, file->filename, s);
+ } else {
while (d)
fputs("\n", s1->outfile), --d;
+ }
line_ref = (file_ref = file)->line_num;
- token_seen = 1;
+ token_seen = tok != TOK_LINEFEED;
+ if (!token_seen)
+ continue;
}
fputs(get_tok_str(tok, &tokc), s1->outfile);
}