linux.git/arch/mips/boot/compressed/Makefile, branch v4.4

MIPS: Fix alignment of quiet build output for vmlinuz link

2015-09-03T10:08:15+00:00

The "LD vmlinuz" line in the quiet build output is misaligned with the
rest of the output. Fix this.

Signed-off-by: Alex Smith 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11019/
Signed-off-by: Ralf Baechle

MIPS: Reduce kernel image size for !CONFIG_DEBUG_ZBOOT

2015-04-02T11:54:25+00:00

!CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and
the corrospindig strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves
about 1280 bytes.

[ralf@linux-mips.org: Resolved reject.]

Signed-off-by: Wu Zhangjin 
Cc: linux-mips@linux-mips.org
Cc: Wu Zhangjin 
Patchwork: https://patchwork.linux-mips.org/patch/1898/
Signed-off-by: Ralf Baechle

MIPS: Allow platforms to specify the decompressor load address

2015-03-31T10:04:12+00:00

Platforms which use raw zboot images may need to link the image at
a fixed address if there is no other way to communicate the load
address to the bootloader.  Allow the per-platform Kbuild files
to specify an optional zboot image load address (zload-y) and fall
back to calc_vmlinuz_load_addr if unset.

Signed-off-by: Andrew Bresticker 
Cc: Lars-Peter Clausen 
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Andrew Bresticker 
Cc: Ezequiel Garcia 
Cc: James Hartley 
Cc: James Hogan 
Patchwork: https://patchwork.linux-mips.org/patch/9566/
Signed-off-by: Ralf Baechle

MIPS: ZBOOT: gather string functions into string.c

2014-01-24T21:39:55+00:00

In the worst case this adds less then 128 bytes of code
but on the other hand this makes code organization more clear.

Signed-off-by: Antony Pavlov 
Reviewed-by: Florian Fainelli 
Cc: linux-mips@linux-mips.org
Cc: Ralf Baechle 
Cc: John Crispin 
Cc: Florian Fainelli 
Acked-by: Florian Fainelli 
Signed-off-by: John Crispin 
Patchwork: http://patchwork.linux-mips.org/patch/6344/

MIPS: ZBOOT: Support LZ4 compression scheme

2013-10-29T20:24:34+00:00

Add support for the LZ4 compression scheme in the ZBOOT decompression
stub, in order to support it we need to:

- select the "lz4" compression tool to compress the vmlinux.bin
  payload
- memcpy() is also required for decompress_unlz4.c so we share the
  implementation between GZIP, XZ and now LZ4

Signed-off-by: Florian Fainelli 
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5829/
Signed-off-by: Ralf Baechle

MIPS: ZBOOT: Support XZ compression scheme

2013-10-29T20:24:28+00:00

Add support for the XZ compression scheme in the ZBOOT decompression
stub, in order to support it we need to:

- select the "xzkern" compression tool to compress the vmlinux.bin
  payload
- link with ashldi3.o for xz_dec_run() to work
- memcpy() is also required for decompress_unxz.c so we share the
  implementation between GZIP and XZ

Signed-off-by: Florian Fainelli 
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5818/
Signed-off-by: Ralf Baechle

MIPS: Refactor load/entry address calculations

2013-09-03T15:58:37+00:00

The vmlinux load address and entry address is calculated in multiple
places:
 - arch/mips/Makefile defines load-y from CONFIG_PHYSICAL_START (or
   defined by the platform) and passes it to
   arch/mips/boot/compressed/Makefile.
 - arch/mips/boot/compressed/Makefile calculates kernel entry using nm.
 - arch/mips/lasat/image/Makefile calculates both load and entry address
   using nm.

Lets combine these in the main Makefile and then pass them as Make
parameters to each of the three boot image Makefiles (in boot/,
boot/compressed, lasat/image/). The boot/ Makefile doesn't currently use
them, but will soon need to for U-Boot image targets.

The existing load-y definition is used in preference to calculating the
load address using nm.

Signed-off-by: James Hogan 
Cc: Ralf Baechle 
Cc: Florian Fainelli 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5794/
Signed-off-by: Ralf Baechle

MIPS: Boot: Compressed: Remove -fstack-protector from CFLAGS

2013-07-01T13:10:41+00:00

When building with -fstack-protector, gcc emits the __stack_chk_guard and
__stack_chk_fail symbols to check for stack stability. These symbols are
defined in vmlinux but the generated vmlinux.bin that is used to create
the compressed vmlinuz image has no symbol table so the linker can't find
these symbols during the final linking phase.  As a result of which, we
need either to redefine these symbols just for the compressed image or drop
the -fstack-protector option when building the compressed image. This patch
implements the latter of two options.

Fixes the following linking problem:

dbg.c:(.text+0x7c): undefined reference to `__stack_chk_guard'
dbg.c:(.text+0x80): undefined reference to `__stack_chk_guard'
dbg.c:(.text+0xd4): undefined reference to `__stack_chk_guard'
dbg.c:(.text+0xec): undefined reference to `__stack_chk_fail'

[ralf@linux-mips.org: I'm applying this before the patch that actually adds
stack protector support for MIPS.  This means, it will not be possible
to trigger above error message with any commit from the tree but rather
they are what one would hit without this commit.]

Signed-off-by: Markos Chandras 
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras 
Patchwork: https://patchwork.linux-mips.org/patch/5575/
Signed-off-by: Ralf Baechle

MIPS: Whitespace cleanup.

2013-02-01T09:00:22+00:00

Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.

Signed-off-by: Ralf Baechle

MIPS: Enable vmlinuz for JZ4740

2012-07-23T12:56:21+00:00

This patch adds support for building a compressed kernel for the JZ4740
architecture.

Signed-off-by: Lars-Peter Clausen 
Signed-off-by: Maarten ter Huurne 
Cc: Sergei Shtylyov 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3563/
Signed-off-by: Ralf Baechle