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authorVasily Gorbik <gor@linux.ibm.com>2018-06-11 14:35:01 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-06-25 10:14:38 +0200
commit00f2fb573fdc3c21f3b7266a4a8758a85943edfb (patch)
tree58cd9dadfd9488c36d165f6412ada9b0355383c5 /arch/s390/boot
parent76bf9d6cef5788c769af987ff6f8ece40c6ab152 (diff)
s390: remove uncompressed kernel image build
Dropping support for uncompressed kernel "image" build. Having both image and bzImage makes it complicated to add new code to an early boot phase (which is part of vmlinux for uncompressed kernel and a separate arch/s390/boot/compressed/vmlinux for bzImage). e.g. sclp_early_core.o is used for both, the decompressor phase and the main kernel. The fact of having uncompressed kernel "image" forces us to have a single object file and sacrifice instrumentation flags on such files (so that we could use them early). The story gets much more complicated with the need to utilize some of the string functions. With bzImage only support, we have 2 separate boot stages each built and linked separately, which allows to reuse some shared code, but recompile with appropriate flags. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/boot')
-rw-r--r--arch/s390/boot/Makefile6
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index d1fa37fcce83..da5f299dcd18 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -3,13 +3,9 @@
# Makefile for the linux s390-specific parts of the memory manager.
#
-targets := image
-targets += bzImage
+targets := bzImage
subdir- := compressed
-$(obj)/image: vmlinux FORCE
- $(call if_changed,objcopy)
-
$(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
$(call if_changed,objcopy)

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