From 114632438a8d787127db0cb997fea058c4307d46 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Sun, 1 Jul 2007 09:45:27 +0000
Subject: Remove patch-cmdline from the packages and move it tools tools/.
 adm5120 and rb532 do use it for procuding ready-to-use kernels (#1631)

SVN-Revision: 7820
---
 tools/Makefile                          |  2 +-
 tools/patch-cmdline/Makefile            | 34 ++++++++++++++
 tools/patch-cmdline/src/patch-cmdline.c | 80 +++++++++++++++++++++++++++++++++
 3 files changed, 115 insertions(+), 1 deletion(-)
 create mode 100644 tools/patch-cmdline/Makefile
 create mode 100644 tools/patch-cmdline/src/patch-cmdline.c

(limited to 'tools')

diff --git a/tools/Makefile b/tools/Makefile
index 4ee3f1ae7e..68e7dab534 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -7,7 +7,7 @@
 # Main makefile for the host tools
 #
 include $(TOPDIR)/rules.mk
-TARGETS-y:=sed sstrip ipkg-utils ext2fs squashfs mtd-utils lzma mkimage firmware-utils
+TARGETS-y:=sed sstrip ipkg-utils ext2fs squashfs mtd-utils lzma mkimage firmware-utils patch-cmdline
 TARGETS-$(CONFIG_CCACHE) += ccache
 
 TARGETS_DOWNLOAD:=$(patsubst %,%-download,$(TARGETS-y))
diff --git a/tools/patch-cmdline/Makefile b/tools/patch-cmdline/Makefile
new file mode 100644
index 0000000000..75ea7b52d4
--- /dev/null
+++ b/tools/patch-cmdline/Makefile
@@ -0,0 +1,34 @@
+# 
+# Copyright (C) 2007 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=patch-cmdline
+
+PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)
+
+include $(INCLUDE_DIR)/host-build.mk
+
+OS:=$(shell uname)
+ifeq ($(HOST_OS),Darwin)
+  CFLAGS += -I./include
+endif
+CFLAGS += -I $(TOPDIR)/tools/include -include endian.h
+
+define Build/Compile
+	$(CC) $(CFLAGS) -o $(PKG_BUILD_DIR)/$(PKG_NAME) src/$(PKG_NAME).c
+endef
+
+define Build/Install
+	mkdir -p $(STAGING_DIR)/bin
+	$(CP) $(PKG_BUILD_DIR)/patch-cmdline $(STAGING_DIR)/bin/
+endef
+
+define Build/Clean
+	-rm -f $(STAGING_DIR)/bin/patch-cmdline
+endef
+
+$(eval $(call HostBuild))
diff --git a/tools/patch-cmdline/src/patch-cmdline.c b/tools/patch-cmdline/src/patch-cmdline.c
new file mode 100644
index 0000000000..d4636f7732
--- /dev/null
+++ b/tools/patch-cmdline/src/patch-cmdline.c
@@ -0,0 +1,80 @@
+/*
+ * patch-cmdline.c - patch the kernel command line on rb532
+ *
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ *
+ * 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.
+ *
+ * $Id:$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#define SEARCH_SPACE	(16 * 1024)
+#define CMDLINE_MAX		512
+
+int main(int argc, char **argv)
+{
+	int fd, found = 0, len, ret = -1;
+	char *ptr, *p;
+
+	if (argc != 3) {
+		fprintf(stderr, "Usage: %s <file> <cmdline>\n", argv[0]);
+		goto err1;
+	}
+	len = strlen(argv[2]);
+	if (len + 9 > CMDLINE_MAX) {
+		fprintf(stderr, "Command line string too long\n");
+		goto err1;
+	}
+	
+	if (((fd = open(argv[1], O_RDWR)) < 0) ||
+		(ptr = (char *) mmap(0, SEARCH_SPACE + CMDLINE_MAX, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1)) {
+		fprintf(stderr, "Could not open kernel image");
+		goto err2;
+	}
+	
+	for (p = ptr; p < (ptr + SEARCH_SPACE); p += 4) {
+		if (memcmp(p, "CMDLINE:", 8) == 0) {
+			found = 1;
+			p += 8;
+			break;
+		}
+	}
+	if (!found) {
+		fprintf(stderr, "Command line marker not found!\n");
+		goto err3;
+	}
+
+	memset(p, 0, CMDLINE_MAX - 8);
+	strcpy(p, argv[2]);
+	msync(p, CMDLINE_MAX, MS_SYNC|MS_INVALIDATE);
+	ret = 0;
+
+err3:
+	munmap((void *) ptr, len);
+err2:
+	if (fd > 0)
+		close(fd);
+err1:
+	return ret;
+}
-- 
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