linux: add support for ELF vmlinux image

The ELF vmlinux image found at the root of the kernel source tree is
the format that Qemu needs when emulating mips(el) or ppc targets, so
add support for it.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

linux/Config.in

@@ -129,6 +129,10 @@ config BR2_LINUX_KERNEL_VMLINUX_BIN
 	bool "vmlinux.bin"
 	depends on BR2_mips || BR2_mipsel || BR2_sh || BR2_sh64
 
+config BR2_LINUX_KERNEL_VMLINUX
+	bool "vmlinux"
+	depends on BR2_mips || BR2_mipsel
+
 endchoice
 
 endif # BR2_LINUX_KERNEL

linux/linux.mk

@@ -39,13 +39,19 @@ else ifeq ($(BR2_LINUX_KERNEL_ZIMAGE),y)
 LINUX26_IMAGE_NAME=zImage
 else ifeq ($(BR2_LINUX_KERNEL_VMLINUX_BIN),y)
 LINUX26_IMAGE_NAME=vmlinux.bin
+else ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
+LINUX26_IMAGE_NAME=vmlinux
 endif
 
+ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
+LINUX26_IMAGE_PATH=$(LINUX26_DIR)/$(LINUX26_IMAGE_NAME)
+else
 ifeq ($(KERNEL_ARCH),avr32)
 LINUX26_IMAGE_PATH=$(LINUX26_DIR)/arch/$(KERNEL_ARCH)/boot/images/$(LINUX26_IMAGE_NAME)
 else
 LINUX26_IMAGE_PATH=$(LINUX26_DIR)/arch/$(KERNEL_ARCH)/boot/$(LINUX26_IMAGE_NAME)
 endif
+endif # BR2_LINUX_KERNEL_VMLINUX
 
 # Download
 $(LINUX26_DIR)/.stamp_downloaded: