call Image/BuildKernel template for targets that export their kernel images without...

[openwrt.git] / target / linux / image / generic / lzma-loader / src / Makefile

diff --git a/target/linux/image/generic/lzma-loader/src/Makefile b/target/linux/image/generic/lzma-loader/src/Makefile
index 8dfd76a..5435688 100644 (file)
--- a/target/linux/image/generic/lzma-loader/src/Makefile
+++ b/target/linux/image/generic/lzma-loader/src/Makefile
@@ -1,9 +1,16 @@
 LOADADDR = 0x80400000          # RAM start + 4M
 KERNEL_ENTRY = 0x80001000
 RAMSIZE = 0x00100000           # 1MB
 LOADADDR = 0x80400000          # RAM start + 4M
 KERNEL_ENTRY = 0x80001000
 RAMSIZE = 0x00100000           # 1MB

+IMAGE_COPY:=0

 
 CROSS_COMPILE = mips-linux-
 
 
 CROSS_COMPILE = mips-linux-
 

+OBJCOPY:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
+CFLAGS := -fno-builtin -Os -G 0 -ffunction-sections -mno-abicalls -fno-pic -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap -Wall -DRAMSIZE=${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:
 .S.s:
        $(CPP) $(CFLAGS) $< -o $*.s
 .S.o:


@@ -13,12 +20,8 @@ CROSS_COMPILE = mips-linux-
 
 CC =       $(CROSS_COMPILE)gcc
 LD =       $(CROSS_COMPILE)ld
 
 CC =       $(CROSS_COMPILE)gcc
 LD =       $(CROSS_COMPILE)ld

-OBJCOPY =  $(CROSS_COMPILE)objcopy

 OBJDUMP =  $(CROSS_COMPILE)objdump
 
 OBJDUMP =  $(CROSS_COMPILE)objdump
 

-CFLAGS = -fno-builtin -Os -G 0 -mno-abicalls -fno-pic -Wall -DRAMSIZE=${RAMSIZE} -DKERNEL_ENTRY=${KERNEL_ENTRY} -D_LZMA_IN_CB
-# CFLAGS = -fno-builtin -Os -G 0 -mno-abicalls -fno-pic -Wall -DRAMSIZE=${RAMSIZE}
-

 O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
 
 # Drop some uninteresting sections in the kernel.
 O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
 
 # Drop some uninteresting sections in the kernel.


@@ -26,17 +29,29 @@ O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
 drop-sections   = .reginfo .mdebug .comment
 strip-flags     = $(addprefix --remove-section=,$(drop-sections))
 
 drop-sections   = .reginfo .mdebug .comment
 strip-flags     = $(addprefix --remove-section=,$(drop-sections))
 

-

 all : lzma.elf
 
 lzma.lds: lzma.lds.in
 all : lzma.elf
 
 lzma.lds: lzma.lds.in

-       sed -e 's,@LOADADDR@,$(LOADADDR),g' $< >$@
+       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 $@ $<
 
 
 kernel.o: vmlinux.lzma lzma.lds
        $(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
 

+ifeq ($(IMAGE_COPY),1)
+lzma.o: decompress.o LzmaDecode.o kernel.o
+       sed -e 's,@LOADADDR@,$(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 $(O_FORMAT)
+       
+lzma.elf: start.o lzma.o
+       sed -e 's,@LOADADDR@,$(KERNEL_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 $@ $^
 lzma.elf: start.o decompress.o LzmaDecode.o kernel.o
        $(LD) -s -Tlzma.lds -o $@ $^

+endif

 
 clean:
 
 clean:

-       rm -f *.o lzma.elf
+       rm -f *.o lzma.elf *.tmp *.lds