parisc: Reintroduce option to gzip-compress the kernel

By adding the feature to build the kernel as self-extracting
executeable, the possibility to simply compress the kernel with gzip was
lost.

This patch now reintroduces this possibilty again and leaves it up to
the user to decide how the kernel should be built.

The palo bootloader is able to natively load both formats.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ba7b7ddc38442dab7e9b0679bba03478bf20096c..a57dedbfc7b77802e09104ee115702a9fe6fee13 100644 (file)
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -257,6 +257,18 @@ config PARISC_PAGE_SIZE_64KB
 
 endchoice
 
+config PARISC_SELF_EXTRACT
+       bool "Build kernel as self-extracting executable"
+       default y
+       help
+         Say Y if you want to build the parisc kernel as a kind of
+         self-extracting executable.
+
+         If you say N here, the kernel will be compressed with gzip
+         which can be loaded by the palo bootloader directly too.
+
+         If you don't know what to do here, say Y.
+
 config SMP
        bool "Symmetric multi-processing support"
        ---help---

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 58fae5d2449daae762fbe09f54a52561e29832f9..01946ebaff72814435cf6128665bd778eb217fb1 100644 (file)
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -129,8 +129,13 @@ Image: vmlinux
 bzImage: vmlinux
        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
+ifdef CONFIG_PARISC_SELF_EXTRACT
 vmlinuz: bzImage
        $(OBJCOPY) $(boot)/bzImage $@
+else
+vmlinuz: vmlinux
+       @gzip -cf -9 $< > $@
+endif
 
 install:
        $(CONFIG_SHELL) $(src)/arch/parisc/install.sh \