diff options
| -rw-r--r-- | target/linux/rb532-2.6/base-files.mk | 11 | ||||
| -rwxr-xr-x | target/linux/rb532-2.6/base-files/sbin/cf2nand | 9 | ||||
| -rw-r--r-- | target/linux/rb532-2.6/image/Makefile | 15 | ||||
| -rw-r--r-- | target/linux/rb532-2.6/patches/140-cmdline_hack.patch | 31 | ||||
| -rw-r--r-- | target/linux/rb532-2.6/src/patch-cmdline.c | 80 |
5 files changed, 122 insertions, 24 deletions
diff --git a/target/linux/rb532-2.6/base-files.mk b/target/linux/rb532-2.6/base-files.mk new file mode 100644 index 0000000000..afd1220c56 --- /dev/null +++ b/target/linux/rb532-2.6/base-files.mk @@ -0,0 +1,11 @@ +define Build/Compile + $(call Build/Compile/Default) + $(TARGET_CC) -o $(PKG_BUILD_DIR)/patch-cmdline $(PLATFORM_DIR)/src/patch-cmdline.c +endef + +define Package/base-files/install-target + mkdir -p $(1)/sbin + $(CP) $(PKG_BUILD_DIR)/patch-cmdline $(1)/sbin +endef + + diff --git a/target/linux/rb532-2.6/base-files/sbin/cf2nand b/target/linux/rb532-2.6/base-files/sbin/cf2nand index f8576beaa4..3f3352fd1b 100755 --- a/target/linux/rb532-2.6/base-files/sbin/cf2nand +++ b/target/linux/rb532-2.6/base-files/sbin/cf2nand @@ -6,13 +6,8 @@ copy_kernel() { local output="$2" local cmdline="$3" size="$(echo -n "$cmdline" | wc -c)" - dd if="$input" bs=3M count=1 | ( - dd bs=4112 count=1 - echo -n "$cmdline" - dd if=/dev/zero bs="$((512 - $size))" count=1 - dd bs=512 count=1 of=/dev/null - cat - ) > "$output" + dd if="$input" bs=3M count=1 > "$output" + /sbin/patch-cmdline "$output" "$cmdline" } fstype="$(mount | grep ' / ' | awk '{print $5}')" diff --git a/target/linux/rb532-2.6/image/Makefile b/target/linux/rb532-2.6/image/Makefile index 27e4357a83..4907214469 100644 --- a/target/linux/rb532-2.6/image/Makefile +++ b/target/linux/rb532-2.6/image/Makefile @@ -20,17 +20,16 @@ LOADER_MAKEOPTS= \ RAMSIZE=$(RAMSIZE) \ IMAGE_COPY=$(IMAGE_COPY) +define Build/Compile + $(CC) -o $(STAGING_DIR)/bin/patch-cmdline $(PLATFORM_DIR)/src/patch-cmdline.c +endef + define Build/Clean $(MAKE) -C ../../generic-2.6/image/lzma-loader $(LOADER_MAKEOPTS) clean endef -CMDLINE_SIZE=512 -CMDLINE_OFFSET=4112 - define Image/Prepare - echo 'root=/dev/cfa2 ' | \ - dd bs=$(CMDLINE_SIZE) count=1 conv=sync | \ - dd of=$(LINUX_DIR)/vmlinux bs=$(CMDLINE_OFFSET) conv=notrunc seek=1 + $(STAGING_DIR)/bin/patch-cmdline $(LINUX_DIR)/vmlinux 'root=/dev/cfa2 ' $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL) endef @@ -56,9 +55,7 @@ root=/dev/cfa2 rootfstype=ext2 endef define Image/Build - echo '$(strip $(call Image/cmdline/$(1))) ' | \ - dd bs=$(CMDLINE_SIZE) count=1 conv=sync | \ - dd of=$(LINUX_DIR)/vmlinux bs=$(CMDLINE_OFFSET) conv=notrunc seek=1 + $(STAGING_DIR)/bin/patch-cmdline $(LINUX_DIR)/vmlinux '$(strip $(call Image/cmdline/$(1))) ' ( \ echo -ne OWRT | dd bs=$$$$((0x1be)) conv=sync; \ ( \ diff --git a/target/linux/rb532-2.6/patches/140-cmdline_hack.patch b/target/linux/rb532-2.6/patches/140-cmdline_hack.patch index 55cf8889f6..01daf3132c 100644 --- a/target/linux/rb532-2.6/patches/140-cmdline_hack.patch +++ b/target/linux/rb532-2.6/patches/140-cmdline_hack.patch @@ -1,18 +1,33 @@ diff -ur linux.old/arch/mips/kernel/head.S linux.dev/arch/mips/kernel/head.S ---- linux.old/arch/mips/kernel/head.S 2006-10-26 00:11:13.000000000 +0200 -+++ linux.dev/arch/mips/kernel/head.S 2006-10-26 02:40:10.000000000 +0200 -@@ -132,6 +132,8 @@ +--- linux.old/arch/mips/kernel/head.S 2006-12-06 17:30:27.000000000 +0100 ++++ linux.dev/arch/mips/kernel/head.S 2006-12-06 18:34:43.000000000 +0100 +@@ -129,15 +129,20 @@ + #endif + .endm +- j kernel_entry nop +- + nop -+EXPORT(_image_cmdline) - ++ /* * Reserved space for exception handlers. + * Necessary for machines which link their kernels at KSEG0. ++ * Use as temporary storage for the kernel command line, so that it ++ * can be updated easily without having to relink the kernel. + */ +- .fill 0x400 ++ ++EXPORT(_image_cmdline) ++ .ascii "CMDLINE:" ++ .fill 0x3ec + + EXPORT(stext) # used for profiling + EXPORT(_stext) diff -ur linux.old/arch/mips/rb500/prom.c linux.dev/arch/mips/rb500/prom.c ---- linux.old/arch/mips/rb500/prom.c 2006-10-26 00:11:14.000000000 +0200 -+++ linux.dev/arch/mips/rb500/prom.c 2006-10-26 02:40:46.000000000 +0200 +--- linux.old/arch/mips/rb500/prom.c 2006-12-06 17:30:27.000000000 +0100 ++++ linux.dev/arch/mips/rb500/prom.c 2006-12-06 17:41:40.000000000 +0100 @@ -128,6 +128,7 @@ /* FIXME: STUB */ } @@ -26,7 +41,7 @@ diff -ur linux.old/arch/mips/rb500/prom.c linux.dev/arch/mips/rb500/prom.c cp+=strlen(prom_argv[i]); } + *(cp++) = ' '; -+ strcpy(cp,&_image_cmdline); ++ strcpy(cp,(&_image_cmdline + 8)); + cp += strlen(&_image_cmdline); i=strlen(arcs_cmdline); diff --git a/target/linux/rb532-2.6/src/patch-cmdline.c b/target/linux/rb532-2.6/src/patch-cmdline.c new file mode 100644 index 0000000000..d4636f7732 --- /dev/null +++ b/target/linux/rb532-2.6/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; +} |