diff options
| author | Wu Zhangjin <wuzhangjin@gmail.com> | 2010-06-02 16:35:25 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-08-05 13:26:33 +0100 |
| commit | 3c4b7fde941639bd96c7d0429b4da925f07be75f (patch) | |
| tree | 312895f2055bdbf67166ebdf07be002b30abaf84 /arch/mips | |
| parent | 1e1a77d6984a0010a2225de97009ae22f1ffa026 (diff) | |
| download | linux-3c4b7fde941639bd96c7d0429b4da925f07be75f.tar.bz2 | |
MIPS: Clean up the calculation of VMLINUZ_LOAD_ADDRESS
We have calculated VMLINUZ_LOAD_ADDRESS in shell, which is indecipherable. This
patch rewrites it in C.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
To: linux-mips <linux-mips@linux-mips.org>
Cc: Alexander Clouter <alex@digriz.org.uk>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Alexander Clouter <alex@digriz.org.uk>
Patchwork: https://patchwork.linux-mips.org/patch/1324/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/boot/.gitignore | 1 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 26 |
2 files changed, 14 insertions, 13 deletions
diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore index 4667a5f9280b..f210b09ececc 100644 --- a/arch/mips/boot/.gitignore +++ b/arch/mips/boot/.gitignore @@ -3,3 +3,4 @@ elf2ecoff vmlinux.* zImage zImage.tmp +calc_vmlinuz_load_addr diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index 3bdbeef0e0f5..583149043293 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -12,14 +12,6 @@ # Author: Wu Zhangjin <wuzhangjin@gmail.com> # -# compressed kernel load addr: VMLINUZ_LOAD_ADDRESS > VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE -VMLINUX_SIZE := $(shell wc -c $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | cut -d' ' -f1) -VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo -n $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) -# VMLINUZ_LOAD_ADDRESS = concat "high32 of VMLINUX_LOAD_ADDRESS" and "(low32 of VMLINUX_LOAD_ADDRESS) + VMLINUX_SIZE" -HIGH32 := $(shell A=$(VMLINUX_LOAD_ADDRESS); [ $${\#A} -gt 10 ] && expr substr "$(VMLINUX_LOAD_ADDRESS)" 3 $$(($${\#A} - 10))) -LOW32 := $(shell [ -n "$(HIGH32)" ] && A=11 || A=3; expr substr "$(VMLINUX_LOAD_ADDRESS)" $${A} 8) -VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" -a -n "$(LOW32)" ] && printf "$(HIGH32)%08x" $$(($(VMLINUX_SIZE) + 0x$(LOW32)))) - # set the default size of the mallocing area for decompressing BOOT_HEAP_SIZE := 0x400000 @@ -63,10 +55,18 @@ OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE $(call if_changed,objcopy) -LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T -vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/piggy.o - $(call cmd,ld) - $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ +# Calculate the load address of the compressed kernel image +hostprogs-y := calc_vmlinuz_load_addr + +VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \ + $(objtree)/$(KBUILD_IMAGE) $(VMLINUX_LOAD_ADDRESS)) + +vmlinuzobjs-y += $(obj)/piggy.o + +quiet_cmd_zld = LD $@ + cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@ +vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr + $(call cmd,zld) # # Some DECstations need all possible sections of an ECOFF executable @@ -76,7 +76,7 @@ ifdef CONFIG_MACH_DECSTATION endif # elf2ecoff can only handle 32bit image -hostprogs-y := ../elf2ecoff +hostprogs-y += ../elf2ecoff ifdef CONFIG_32BIT VMLINUZ = vmlinuz |