From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/scripts/dtc/dtc-parser.y | 93 ++++++++++++++++++++++++++++------------------
1 files changed, 57 insertions(+), 36 deletions(-)
diff --git a/kernel/scripts/dtc/dtc-parser.y b/kernel/scripts/dtc/dtc-parser.y
index 011a5b2..a0316a3 100644
--- a/kernel/scripts/dtc/dtc-parser.y
+++ b/kernel/scripts/dtc/dtc-parser.y
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
- *
- *
- * 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
*/
+%locations
+
%{
#include <stdio.h>
#include <inttypes.h>
@@ -31,6 +18,8 @@
srcpos_error((loc), "Error", __VA_ARGS__); \
treesource_error = true; \
} while (0)
+
+#define YYERROR_CALL(msg) yyerror(msg)
extern struct dt_info *parser_output;
extern bool treesource_error;
@@ -70,7 +59,8 @@
%token <byte> DT_BYTE
%token <data> DT_STRING
%token <labelref> DT_LABEL
-%token <labelref> DT_REF
+%token <labelref> DT_LABEL_REF
+%token <labelref> DT_PATH_REF
%token DT_INCBIN
%type <data> propdata
@@ -83,6 +73,7 @@
%type <data> bytestring
%type <prop> propdef
%type <proplist> proplist
+%type <labelref> dt_ref
%type <node> devicetree
%type <node> nodedef
@@ -158,6 +149,8 @@
}
;
+dt_ref: DT_LABEL_REF | DT_PATH_REF;
+
devicetree:
'/' nodedef
{
@@ -167,7 +160,7 @@
{
$$ = merge_nodes($1, $3);
}
- | DT_REF nodedef
+ | dt_ref nodedef
{
/*
* We rely on the rule being always:
@@ -176,9 +169,12 @@
*/
if (!($<flags>-1 & DTSF_PLUGIN))
ERROR(&@2, "Label or path %s not found", $1);
- $$ = add_orphan_node(name_node(build_node(NULL, NULL), ""), $2, $1);
+ $$ = add_orphan_node(
+ name_node(build_node(NULL, NULL, NULL),
+ ""),
+ $2, $1);
}
- | devicetree DT_LABEL DT_REF nodedef
+ | devicetree DT_LABEL dt_ref nodedef
{
struct node *target = get_node_by_ref($1, $3);
@@ -189,7 +185,7 @@
ERROR(&@3, "Label or path %s not found", $3);
$$ = $1;
}
- | devicetree DT_REF nodedef
+ | devicetree DT_PATH_REF nodedef
{
/*
* We rely on the rule being always:
@@ -208,7 +204,26 @@
}
$$ = $1;
}
- | devicetree DT_DEL_NODE DT_REF ';'
+ | devicetree DT_LABEL_REF nodedef
+ {
+ struct node *target = get_node_by_ref($1, $2);
+
+ if (target) {
+ merge_nodes(target, $3);
+ } else {
+ /*
+ * We rely on the rule being always:
+ * versioninfo plugindecl memreserves devicetree
+ * so $-1 is what we want (plugindecl)
+ */
+ if ($<flags>-1 & DTSF_PLUGIN)
+ add_orphan_node($1, $3, $2);
+ else
+ ERROR(&@2, "Label or path %s not found", $2);
+ }
+ $$ = $1;
+ }
+ | devicetree DT_DEL_NODE dt_ref ';'
{
struct node *target = get_node_by_ref($1, $3);
@@ -220,7 +235,7 @@
$$ = $1;
}
- | devicetree DT_OMIT_NO_REF DT_REF ';'
+ | devicetree DT_OMIT_NO_REF dt_ref ';'
{
struct node *target = get_node_by_ref($1, $3);
@@ -237,7 +252,7 @@
nodedef:
'{' proplist subnodes '}' ';'
{
- $$ = build_node($2, $3);
+ $$ = build_node($2, $3, &@$);
}
;
@@ -255,11 +270,11 @@
propdef:
DT_PROPNODENAME '=' propdata ';'
{
- $$ = build_property($1, $3);
+ $$ = build_property($1, $3, &@$);
}
| DT_PROPNODENAME ';'
{
- $$ = build_property($1, empty_data);
+ $$ = build_property($1, empty_data, &@$);
}
| DT_DEL_PROP DT_PROPNODENAME ';'
{
@@ -285,8 +300,9 @@
{
$$ = data_merge($1, $3);
}
- | propdataprefix DT_REF
+ | propdataprefix dt_ref
{
+ $1 = data_add_marker($1, TYPE_STRING, $2);
$$ = data_add_marker($1, REF_PATH, $2);
}
| propdataprefix DT_INCBIN '(' DT_STRING ',' integer_prim ',' integer_prim ')'
@@ -340,22 +356,27 @@
DT_BITS DT_LITERAL '<'
{
unsigned long long bits;
+ enum markertype type = TYPE_UINT32;
bits = $2;
- if ((bits != 8) && (bits != 16) &&
- (bits != 32) && (bits != 64)) {
+ switch (bits) {
+ case 8: type = TYPE_UINT8; break;
+ case 16: type = TYPE_UINT16; break;
+ case 32: type = TYPE_UINT32; break;
+ case 64: type = TYPE_UINT64; break;
+ default:
ERROR(&@2, "Array elements must be"
" 8, 16, 32 or 64-bits");
bits = 32;
}
- $$.data = empty_data;
+ $$.data = data_add_marker(empty_data, type, NULL);
$$.bits = bits;
}
| '<'
{
- $$.data = empty_data;
+ $$.data = data_add_marker(empty_data, TYPE_UINT32, NULL);
$$.bits = 32;
}
| arrayprefix integer_prim
@@ -377,7 +398,7 @@
$$.data = data_append_integer($1.data, $2, $1.bits);
}
- | arrayprefix DT_REF
+ | arrayprefix dt_ref
{
uint64_t val = ~0ULL >> (64 - $1.bits);
@@ -455,8 +476,8 @@
;
integer_shift:
- integer_shift DT_LSHIFT integer_add { $$ = $1 << $3; }
- | integer_shift DT_RSHIFT integer_add { $$ = $1 >> $3; }
+ integer_shift DT_LSHIFT integer_add { $$ = ($3 < 64) ? ($1 << $3) : 0; }
+ | integer_shift DT_RSHIFT integer_add { $$ = ($3 < 64) ? ($1 >> $3) : 0; }
| integer_add
;
@@ -499,7 +520,7 @@
bytestring:
/* empty */
{
- $$ = empty_data;
+ $$ = data_add_marker(empty_data, TYPE_UINT8, NULL);
}
| bytestring DT_BYTE
{
@@ -534,7 +555,7 @@
}
| DT_DEL_NODE DT_PROPNODENAME ';'
{
- $$ = name_node(build_node_delete(), $2);
+ $$ = name_node(build_node_delete(&@$), $2);
}
| DT_OMIT_NO_REF subnode
{
--
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