path: root/arch/mips/Makefile
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authorFlorian Fainelli <f.fainelli@gmail.com>2013-09-11 11:34:48 +0100
committerRalf Baechle <ralf@linux-mips.org>2013-10-29 21:24:26 +0100
commit26fca83a22f66e2ea0339e6b1ee1bdc628c1508b (patch)
tree917789db840b983cf103885e3735bba61dbacd5a /arch/mips/Makefile
parentf9a7febd82f413b9c8bafd40145bc398b7eb619f (diff)
MIPS: Kbuild: Do not allow building vmlinuz when !ZBOOT
When CONFIG_SYS_SUPPORTS_ZBOOT is not enabled, we will still try to build the decompressor code in arch/mips/boot/compressed as a dependency for producing the vmlinuz target and this will result in the following build failure: OBJCOPY arch/mips/boot/compressed/vmlinux.bin arch/mips/boot/compressed/decompress.c: In function 'decompress_kernel': arch/mips/boot/compressed/decompress.c:105:2: error: implicit declaration of function 'decompress' make[1]: *** [arch/mips/boot/compressed/decompress.o] Error 1 make[1]: *** Waiting for unfinished jobs.... make: *** [vmlinuz] Error 2 This is a genuine build failure because we have no implementation for the decompress() function body since no kernel compression method defined in CONFIG_KERNEL_(GZIP,BZIP2...) has been enabled. arch/mips/Makefile already guards the install target for the "vmlinuz" binary with a proper ifdef CONFIG_SYS_SUPPORTS_ZBOOT, we now also do the same if we attempt to do a "make vmlinuz" and show that CONFIG_SYS_SUPPORTS_ZBOOT is not enabled. [ralf@linux-mips.org: Cleanup the makefile rule as suggested by James Hogan.] Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: richard@nod.at Patchwork: https://patchwork.linux-mips.org/patch/5817/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/Makefile')
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index f9a0c30976a5..de300b993607 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -306,10 +306,16 @@ $(boot-y): $(vmlinux-32) FORCE
$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
$(bootvars-y) arch/mips/boot/$@
# boot/compressed
$(bootz-y): $(vmlinux-32) FORCE
$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
$(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
+vmlinuz: FORCE
+ @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
+ /bin/false
CLEAN_FILES += vmlinux.32 vmlinux.64

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