From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/scripts/dtc/srcpos.c | 169 ++++++++++++++++++++++++++++++++++++++++++++++----------
1 files changed, 139 insertions(+), 30 deletions(-)
diff --git a/kernel/scripts/dtc/srcpos.c b/kernel/scripts/dtc/srcpos.c
index cb6ed0e..f5205fb 100644
--- a/kernel/scripts/dtc/srcpos.c
+++ b/kernel/scripts/dtc/srcpos.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
*/
#define _GNU_SOURCE
@@ -33,6 +19,9 @@
/* This is the list of directories that we search for source files */
static struct search_path *search_path_head, **search_path_tail;
+/* Detect infinite include recursion. */
+#define MAX_SRCFILE_DEPTH (100)
+static int srcfile_depth; /* = 0 */
static char *get_dirname(const char *path)
{
@@ -51,11 +40,51 @@
FILE *depfile; /* = NULL */
struct srcfile_state *current_srcfile; /* = NULL */
+static char *initial_path; /* = NULL */
+static int initial_pathlen; /* = 0 */
+static bool initial_cpp = true;
-/* Detect infinite include recursion. */
-#define MAX_SRCFILE_DEPTH (100)
-static int srcfile_depth; /* = 0 */
+static void set_initial_path(char *fname)
+{
+ int i, len = strlen(fname);
+ xasprintf(&initial_path, "%s", fname);
+ initial_pathlen = 0;
+ for (i = 0; i != len; i++)
+ if (initial_path[i] == '/')
+ initial_pathlen++;
+}
+
+static char *shorten_to_initial_path(char *fname)
+{
+ char *p1, *p2, *prevslash1 = NULL;
+ int slashes = 0;
+
+ for (p1 = fname, p2 = initial_path; *p1 && *p2; p1++, p2++) {
+ if (*p1 != *p2)
+ break;
+ if (*p1 == '/') {
+ prevslash1 = p1;
+ slashes++;
+ }
+ }
+ p1 = prevslash1 + 1;
+ if (prevslash1) {
+ int diff = initial_pathlen - slashes, i, j;
+ int restlen = strlen(fname) - (p1 - fname);
+ char *res;
+
+ res = xmalloc((3 * diff) + restlen + 1);
+ for (i = 0, j = 0; i != diff; i++) {
+ res[j++] = '.';
+ res[j++] = '.';
+ res[j++] = '/';
+ }
+ strcpy(res + j, p1);
+ return res;
+ }
+ return NULL;
+}
/**
* Try to open a file in a given directory.
@@ -157,6 +186,9 @@
srcfile->colno = 1;
current_srcfile = srcfile;
+
+ if (srcfile_depth == 1)
+ set_initial_path(srcfile->name);
}
bool srcfile_pop(void)
@@ -197,18 +229,6 @@
search_path_tail = &node->next;
}
-/*
- * The empty source position.
- */
-
-struct srcpos srcpos_empty = {
- .first_line = 0,
- .first_column = 0,
- .last_line = 0,
- .last_column = 0,
- .file = NULL,
-};
-
void srcpos_update(struct srcpos *pos, const char *text, int len)
{
int i;
@@ -234,11 +254,33 @@
srcpos_copy(struct srcpos *pos)
{
struct srcpos *pos_new;
+ struct srcfile_state *srcfile_state;
+
+ if (!pos)
+ return NULL;
pos_new = xmalloc(sizeof(struct srcpos));
+ assert(pos->next == NULL);
memcpy(pos_new, pos, sizeof(struct srcpos));
+ /* allocate without free */
+ srcfile_state = xmalloc(sizeof(struct srcfile_state));
+ memcpy(srcfile_state, pos->file, sizeof(struct srcfile_state));
+ pos_new->file = srcfile_state;
+
return pos_new;
+}
+
+struct srcpos *srcpos_extend(struct srcpos *pos, struct srcpos *newtail)
+{
+ struct srcpos *p;
+
+ if (!pos)
+ return newtail;
+
+ for (p = pos; p->next != NULL; p = p->next);
+ p->next = newtail;
+ return pos;
}
char *
@@ -264,6 +306,68 @@
pos->first_line, pos->first_column);
return pos_str;
+}
+
+static char *
+srcpos_string_comment(struct srcpos *pos, bool first_line, int level)
+{
+ char *pos_str, *fname, *first, *rest;
+ bool fresh_fname = false;
+
+ if (!pos) {
+ if (level > 1) {
+ xasprintf(&pos_str, "<no-file>:<no-line>");
+ return pos_str;
+ } else {
+ return NULL;
+ }
+ }
+
+ if (!pos->file)
+ fname = "<no-file>";
+ else if (!pos->file->name)
+ fname = "<no-filename>";
+ else if (level > 1)
+ fname = pos->file->name;
+ else {
+ fname = shorten_to_initial_path(pos->file->name);
+ if (fname)
+ fresh_fname = true;
+ else
+ fname = pos->file->name;
+ }
+
+ if (level > 1)
+ xasprintf(&first, "%s:%d:%d-%d:%d", fname,
+ pos->first_line, pos->first_column,
+ pos->last_line, pos->last_column);
+ else
+ xasprintf(&first, "%s:%d", fname,
+ first_line ? pos->first_line : pos->last_line);
+
+ if (fresh_fname)
+ free(fname);
+
+ if (pos->next != NULL) {
+ rest = srcpos_string_comment(pos->next, first_line, level);
+ xasprintf(&pos_str, "%s, %s", first, rest);
+ free(first);
+ free(rest);
+ } else {
+ pos_str = first;
+ }
+
+ return pos_str;
+}
+
+char *srcpos_string_first(struct srcpos *pos, int level)
+{
+ return srcpos_string_comment(pos, true, level);
+}
+
+char *srcpos_string_last(struct srcpos *pos, int level)
+{
+ return srcpos_string_comment(pos, false, level);
}
void srcpos_verror(struct srcpos *pos, const char *prefix,
@@ -294,4 +398,9 @@
{
current_srcfile->name = f;
current_srcfile->lineno = l;
+
+ if (initial_cpp) {
+ initial_cpp = false;
+ set_initial_path(f);
+ }
}
--
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