pkgsrc-ng/lang/gcc45/patches/patch-libcpp_macro.c
Lionel Sambuc 612ad0a18c lang/gcc45
2016-01-22 00:09:29 +01:00

107 lines
2.8 KiB
C

$NetBSD$
--- libcpp/macro.c.orig Fri Nov 20 08:18:16 2009
+++ libcpp/macro.c
@@ -111,6 +111,61 @@ static const char * const monthnames[] =
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
+static size_t remap_pairs;
+static char **remap_src;
+static char **remap_dst;
+
+void
+add_cpp_remap_path (const char *arg)
+{
+ const char *arg_dst;
+ size_t len;
+
+ arg_dst = strchr(arg, ':');
+ if (arg_dst == NULL) {
+ fprintf(stderr, "Invalid argument for -iremap");
+ exit(1);
+ }
+ len = arg_dst - arg;
+ ++arg_dst;
+
+ remap_src = (char **) xrealloc(remap_src, sizeof(char *) * (remap_pairs + 1));
+ remap_dst = (char **) xrealloc(remap_dst, sizeof(char *) * (remap_pairs + 1));
+
+ remap_src[remap_pairs] = (char *) xmalloc(len + 1);
+ memcpy(remap_src[remap_pairs], arg, len);
+ remap_src[remap_pairs][len] = '\0';
+ remap_dst[remap_pairs] = xstrdup(arg_dst);
+ ++remap_pairs;
+}
+
+static const char *
+cpp_remap_file (const char *arg, char **tmp_name)
+{
+ char *result;
+ size_t i, len;
+
+ for (i = 0; i < remap_pairs; ++i) {
+ len = strlen (remap_src[i]);
+ if (strncmp (remap_src[i], arg, len))
+ continue;
+ if (arg[len] == '\0')
+ return xstrdup (remap_dst[i]);
+ if (arg[len] != '/')
+ continue;
+ arg += len;
+ len = strlen (remap_dst[i]);
+ result = (char *) xmalloc (len + strlen (arg) + 1);
+ memcpy(result, remap_dst[i], len);
+ strcpy(result + len, arg);
+ *tmp_name = result;
+
+ return result;
+ }
+
+ return arg;
+}
+
/* Helper function for builtin_macro. Returns the text generated by
a builtin macro. */
const uchar *
@@ -170,6 +225,7 @@ _cpp_builtin_macro_text (cpp_reader *pfile, cpp_hashno
{
unsigned int len;
const char *name;
+ char *tmp_name;
uchar *buf;
map = linemap_lookup (pfile->line_table, pfile->line_table->highest_line);
@@ -177,12 +233,14 @@ _cpp_builtin_macro_text (cpp_reader *pfile, cpp_hashno
while (! MAIN_FILE_P (map))
map = INCLUDED_FROM (pfile->line_table, map);
- name = map->to_file;
+ tmp_name = NULL;
+ name = cpp_remap_file (map->to_file, &tmp_name);
len = strlen (name);
buf = _cpp_unaligned_alloc (pfile, len * 2 + 3);
result = buf;
*buf = '"';
buf = cpp_quote_string (buf + 1, (const unsigned char *) name, len);
+ free (tmp_name);
*buf++ = '"';
*buf = '\0';
}
@@ -607,6 +665,7 @@ collect_args (cpp_reader *pfile, const cpp_hashnode *n
memset (args, 0, argc * sizeof (macro_arg));
buff->cur = (unsigned char *) &args[argc];
arg = args, argc = 0;
+ pfile->state.collecting_args = 1;
/* Collect the tokens making up each argument. We don't yet know
how many arguments have been supplied, whether too many or too
@@ -721,6 +780,7 @@ collect_args (cpp_reader *pfile, const cpp_hashnode *n
}
}
while (token->type != CPP_CLOSE_PAREN && token->type != CPP_EOF);
+ pfile->state.collecting_args = 0;
if (token->type == CPP_EOF)
{