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| author |   Vasily Gorbik <gor@linux.ibm.com> | 2018-06-12 15:11:40 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-06-25 10:14:38 +0200 |
| commit | bd79d66329580d6c3fd9556423d2e5124906cfdd (patch) | |
| tree | 55f935b9009565849faa6100e1551c4f6ac2999b /arch/s390/boot/compressed/Makefile | |
| parent | s390: remove uncompressed kernel image build (diff) | |
| download | linux-dev-bd79d66329580d6c3fd9556423d2e5124906cfdd.tar.xz linux-dev-bd79d66329580d6c3fd9556423d2e5124906cfdd.zip | |
s390/decompressor: trim the kernel image up to 1M
Move head64.S main kernel entry point "startup_continue" to 0x100000 and
trim everything which is below 1M during build. So, that the decompressor
would unpack the main kernel image, move it to 0x100000 and jump to
startup_continue.
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/compressed/Makefile')
| -rw-r--r-- | arch/s390/boot/compressed/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index 4f81d14c9f35..9b48e7b86fc8 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -24,7 +24,7 @@ LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T $(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) $(call if_changed,ld) -TRIM_HEAD_SIZE := 0x11000 +TRIM_HEAD_SIZE := 0x100000 sed-sizes := -e 's/^\([0-9a-fA-F]*\) . \(__bss_start\|_end\)$$/\#define SZ\2 (0x\1 - $(TRIM_HEAD_SIZE))/p' |