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| author | Oliver O'Halloran <oohall@gmail.com> | 2016-09-22 09:54:33 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-09-28 07:32:27 +0300 |
| commit | f1e510bbb9f265acb4147a3a650882876a76d48b (patch) | |
| tree | 08127f565c17ac1beb45bf1dd8acb1c82a577436 /arch/powerpc/boot/Makefile | |
| parent | a4da56fbc553ea941f3de6ec55070d62f6957d51 (diff) | |
| download | linux-f1e510bbb9f265acb4147a3a650882876a76d48b.tar.xz | |
powerpc/boot: Add XZ support to the wrapper script
This modifies the wrapper script so that the -Z option takes an argument
to specify the compression type. It can either be 'gz', 'xz' or 'none'.
The legazy --no-gzip and -z options are still supported and will set the
compression to none and gzip respectively, but they are not documented.
Only XZ -6 is used for compression rather than XZ -9. Using compression
levels higher than 6 requires the decompressor to build a large (64MB)
dictionary when decompressing and some environments cannot satisfy such
large allocations (e.g. POWER 6 LPAR partition firmware).
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/boot/Makefile')
| -rw-r--r-- | arch/powerpc/boot/Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 861348c72519..9fb451d0586e 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -225,10 +225,13 @@ CROSSWRAP := -C "$(CROSS_COMPILE)" endif endif +compressor-$(CONFIG_KERNEL_GZIP) := gz + # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd quiet_cmd_wrap = WRAP $@ - cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ - $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux + cmd_wrap =$(CONFIG_SHELL) $(wrapper) -Z $(compressor-y) -c -o $@ -p $2 \ + $(CROSSWRAP) $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) \ + vmlinux image-$(CONFIG_PPC_PSERIES) += zImage.pseries image-$(CONFIG_PPC_POWERNV) += zImage.pseries |