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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-06-26 20:42:58 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-06-26 20:42:58 +0000
commitc5552ad03973839d83d32d7108f20c00f192633b (patch)
treede32e4def600e56134cd085a7447cb6620542078 /target/linux/generic/image/lzma-loader/src/Makefile
parent7ec88f88f4c65a22b3b7e32ef87cb42dcb32a6fb (diff)
rename target/linux/generic-2.6 to generic
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21952 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/image/lzma-loader/src/Makefile')
-rw-r--r--target/linux/generic/image/lzma-loader/src/Makefile68
1 files changed, 68 insertions, 0 deletions
diff --git a/target/linux/generic/image/lzma-loader/src/Makefile b/target/linux/generic/image/lzma-loader/src/Makefile
new file mode 100644
index 000000000..910172c4f
--- /dev/null
+++ b/target/linux/generic/image/lzma-loader/src/Makefile
@@ -0,0 +1,68 @@
+#
+# Copyright (C) 2006 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+RAMSTART = 0x80000000
+RAMSIZE = 0x00100000 # 1MB
+LOADADDR = 0x80400000 # RAM start + 4M
+KERNEL_ENTRY = 0x80001000
+IMAGE_COPY:=0
+
+CROSS_COMPILE = mips-linux-
+
+OBJCOPY:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+CFLAGS := -fno-builtin -Os -G 0 -ffunction-sections -mno-abicalls -fno-pic -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap -Wall -DRAMSTART=${RAMSTART} -DRAMSIZE=${RAMSIZE} -DKERNEL_ENTRY=${KERNEL_ENTRY} -D_LZMA_IN_CB
+ifeq ($(IMAGE_COPY),1)
+CFLAGS += -DLOADADDR=${LOADADDR} -DIMAGE_COPY=1
+endif
+
+.S.s:
+ $(CPP) $(CFLAGS) $< -o $*.s
+.S.o:
+ $(CC) $(CFLAGS) -c $< -o $*.o
+.c.o:
+ $(CC) $(CFLAGS) -c $< -o $*.o
+
+CC = $(CROSS_COMPILE)gcc
+LD = $(CROSS_COMPILE)ld
+OBJDUMP = $(CROSS_COMPILE)objdump
+
+O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
+
+# Drop some uninteresting sections in the kernel.
+# This is only relevant for ELF kernels but doesn't hurt a.out
+drop-sections = .reginfo .mdebug .comment
+strip-flags = $(addprefix --remove-section=,$(drop-sections))
+
+all : lzma.elf lzma.bin
+
+lzma.lds: lzma.lds.in
+ sed -e 's,@LOADADDR@,$(LOADADDR),g' -e 's,@ENTRY@,_start,g' $< >$@
+
+kernel.o: vmlinux.lzma lzma.lds
+ $(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
+
+lzma.bin: lzma.elf
+ $(OBJCOPY) $< $@
+
+ifeq ($(IMAGE_COPY),1)
+LOADER_ENTRY ?= $(KERNEL_ENTRY)
+lzma.o: decompress.o LzmaDecode.o kernel.o
+ sed -e 's,@LOADADDR@,$(LOADADDR),g' -e 's,@ENTRY@,entry,g' lzma.lds.in >lzma-stage2.lds
+ $(LD) -static --no-warn-mismatch -e entry -Tlzma-stage2.lds -o temp-$@ $^
+ $(OBJCOPY) temp-$@ lzma.tmp
+ @echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > lzma-data.lds
+ $(LD) -no-warn-mismatch -T lzma-data.lds -r -o $@ -b binary lzma.tmp --oformat $(O_FORMAT)
+
+lzma.elf: start.o lzma.o
+ sed -e 's,@LOADADDR@,$(LOADER_ENTRY),g' lzma-copy.lds.in >lzma-copy.lds
+ $(LD) -s -Tlzma-copy.lds -o $@ $^
+else
+lzma.elf: start.o decompress.o LzmaDecode.o kernel.o
+ $(LD) -s -Tlzma.lds -o $@ $^
+endif
+
+clean:
+ rm -f *.o lzma.elf lzma.bin *.tmp *.lds