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authorFelix Fietkau <nbd@openwrt.org>2015-01-17 21:19:38 +0000
committerFelix Fietkau <nbd@openwrt.org>2015-01-17 21:19:38 +0000
commit33848f14d30d51e15ce99765a7063abe38bc6e92 (patch)
tree2afd99d106ac76b1240733500560608584a8c697 /target/linux/ramips/image/relocate/Makefile
parent82f21058a180b0b30007fe7c9ce2cde9f970301b (diff)
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ramips: add code for relocating a kernel to the right place
(used if the boot loader wants a different loadaddr/entry) Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 44014
Diffstat (limited to 'target/linux/ramips/image/relocate/Makefile')
-rw-r--r--target/linux/ramips/image/relocate/Makefile72
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/ramips/image/relocate/Makefile b/target/linux/ramips/image/relocate/Makefile
new file mode 100644
index 0000000000..a71bb00802
--- /dev/null
+++ b/target/linux/ramips/image/relocate/Makefile
@@ -0,0 +1,72 @@
+#
+# Makefile for the LZMA compressed kernel loader for
+# Atheros AR7XXX/AR9XXX based boards
+#
+# Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+#
+# Some parts of this file was based on the OpenWrt specific lzma-loader
+# for the BCM47xx and ADM5120 based boards:
+# Copyright (C) 2004 Manuel Novoa III (mjn3@codepoet.org)
+# Copyright (C) 2005 Mineharu Takahara <mtakahar@yahoo.com>
+# Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 as published
+# by the Free Software Foundation.
+#
+
+LOADADDR :=
+LZMA_TEXT_START := 0x81000000
+LOADER_DATA :=
+BOARD :=
+FLASH_OFFS :=
+FLASH_MAX :=
+PLATFORM :=
+
+CC := $(CROSS_COMPILE)gcc
+LD := $(CROSS_COMPILE)ld
+OBJCOPY := $(CROSS_COMPILE)objcopy
+OBJDUMP := $(CROSS_COMPILE)objdump
+
+BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+
+CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
+ -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \
+ -mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \
+ -fno-common -ffreestanding -fhonour-copts \
+ -mabi=32 -march=mips32r2 \
+ -Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap \
+ -DCONFIG_CACHELINE_SIZE=32 -DKERNEL_ADDR=$(KERNEL_ADDR)
+
+ASFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+LDFLAGS = -static --gc-sections -no-warn-mismatch
+LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
+
+O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
+
+OBJECTS := head.o
+
+all: head.o loader.bin
+
+# Don't build dependencies, this may die if $(CC) isn't gcc
+dep:
+
+install:
+
+%.o : %.c
+ $(CC) $(CFLAGS) -c -o $@ $<
+
+%.o : %.S
+ $(CC) $(ASFLAGS) -c -o $@ $<
+
+loader: $(OBJECTS)
+ $(LD) $(LDFLAGS) -o $@ $(OBJECTS)
+
+loader.bin: loader
+ $(OBJCOPY) $(BIN_FLAGS) $< $@
+
+mrproper: clean
+
+clean:
+ rm -f loader *.elf *.bin *.o