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  1. Oct 25, 2014
  3. Jul 07, 2014
  5. Apr 18, 2014
  7. Mar 04, 2014
  9. Feb 19, 2014
    • Masahiro Yamada's avatar
      kbuild: use Linux Kernel build scripts · 6825a95b
      Masahiro Yamada authored and Tom Rini's avatar Tom Rini committed 
      
Now we are ready to switch over to real Kbuild.

This commit disables temporary scripts:
  scripts/{Makefile.build.tmp, Makefile.host.tmp}
and enables real Kbuild scripts:
  scripts/{Makefile.build,Makefile.host,Makefile.lib}.

This switch is triggered by the line in scripts/Kbuild.include
  -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj
  +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj

We need to adjust some build scripts for U-Boot.
But smaller amount of modification is preferable.

Additionally, we need to fix compiler flags which are
locally added or removed.

In Kbuild, it is not allowed to change CFLAGS locally.
Instead, ccflags-y, asflags-y, cppflags-y,
CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o
are prepared for that purpose.

Signed-off-by: default avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: default avatarGerhard Sittig <gsi@denx.de>
      6825a95b
    • Masahiro Yamada's avatar
      kbuild: change out-of-tree build · 9e414032
      Masahiro Yamada authored and Tom Rini's avatar Tom Rini committed 
      
This commit changes the working directory
where the build process occurs.

Before this commit, build process occurred under the source
tree for both in-tree and out-of-tree build.

That's why we needed to add $(obj) prefix to all generated
files in makefiles like follows:
  $(obj)u-boot.bin:  $(obj)u-boot

Here, $(obj) is empty for in-tree build, whereas it points
to the output directory for out-of-tree build.

And our old build system changes the current working directory
with "make -C <sub-dir>" syntax when descending into the
sub-directories.

On the other hand, Kbuild uses a different idea
to handle out-of-tree build and directory descending.

The build process of Kbuild always occurs under the output tree.
When "O=dir/to/store/output/files" is given, the build system
changes the current working directory to that directory and
restarts the make.

Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>"
syntax for descending into sub-directories.
(We can write it like "make $(obj)=<sub-dir>" with a shorthand.)
This means the current working directory is always the top
of the output directory.

Signed-off-by: default avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: default avatarGerhard Sittig <gsi@denx.de>
      9e414032
    • Masahiro Yamada's avatar
      Makfile: move suffix rules to Makefile.build · 5651ccff
      Masahiro Yamada authored and Tom Rini's avatar Tom Rini committed 
      
This commit moves suffix rules from config.mk
to scripts/Makefile.build, which will allow us
to switch smoothly to real Kbuild.

Note1:
post/lib_powerpc/fpu/Makefile has
its own rule to compile C sources.
We need to tweak it to keep the same behavior.

Note2:
There are two file2 with the same name:
arch/arm/lib/crt0.S and eamples/api/crt0.S.
To keep the same build behavior,
examples/api/Makefile also has to be treaked.

Signed-off-by: default avatarMasahiro Yamada <yamada.m@jp.panasonic.com>
      5651ccff
  11. Dec 16, 2013
  13. Dec 13, 2013
  15. Nov 25, 2013
  17. Nov 01, 2013
  19. Oct 14, 2013
  21. Sep 20, 2013
  23. Jul 24, 2013
  25. May 01, 2013
  27. Oct 28, 2012
  29. Oct 15, 2012
  31. Mar 30, 2012
  33. Mar 18, 2012
  35. Mar 12, 2012
  37. Feb 12, 2012
  39. Jan 13, 2012
  41. Dec 23, 2011
    • Wolfgang Denk's avatar
      post/lib_powerpc/multi.c: fix stack overflow error · 7ddd4475
      Wolfgang Denk authored 
      
The code and comment disagreed: the comment claimed that r6...r31
were copied, and consequently the arrays for "src" and "dst" were
declared with 26 entries, but the actual code ("lmw r5,0(r3)" and
"stmw r5,0(r4)") copied _27_ words (r5 through r31), which resulted
in false "POST cpu Error at multi test" messages.

Fix the comment and the array sizes.

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: default avatarAnatolij Gustschin <agust@denx.de>
Tested-by: default avatarAnatolij Gustschin <agust@denx.de>
      7ddd4475
    • Wolfgang Denk's avatar
      post/lib_powerpc/multi.c: code cleanup · 38081ff7
      Wolfgang Denk authored 
      
Clean up and document the code:

- get rid of unneeded code block
- add comment which code is generated

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: default avatarAnatolij Gustschin <agust@denx.de>
      38081ff7
    • Wolfgang Denk's avatar
      post/lib_powerpc/multi.c: make checkpatch clean · a63aec54
      Wolfgang Denk authored 
      
Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Andy Fleming <afleming@gmail.com>
Acked-by: default avatarAnatolij Gustschin <agust@denx.de>
      a63aec54
    • Wolfgang Denk's avatar
      PPC: fix "Warning: FOO uses hard float, BAR uses soft float". · 139e1875
      Wolfgang Denk authored 
      
It appears that with recent versions of GCC the explicit
"-mhard-float" command line option takes precedence over the
``asm(".gnu_attribute 4, 2");'' in the source file, so this no longer
helps to avoid the warnings we get when linking code that uses FP
instructions with other code that was built using soft-float.

We can remove the ".gnu_attribute" (which appears to carry no other
information, at least so far) from the object files, but we also have
to make sure we don't pull in the __gcc_qsub() and __gcc_qmul()
functions from the standard libgcc, as these would again "infect" our
linking.  We copy this code from:
	gcc-4.2.2/gcc/config/rs6000/darwin-ldouble.c
This old version was chosen because it was still available under a
compatible license (GCC v2+).   The file was stripped down to the
needed parts, and reformatted so it passes checkpatch with only one
warning (do not add new typedefs).

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Andy Fleming <afleming@gmail.com>
Cc: Kim Phillips <kim.phillips@freescale.com>
Tested-by: default avatarStefan Roese <sr@denx.de>
Tested-by: default avatarAnatolij Gustschin <agust@denx.de>
      139e1875
  43. Dec 11, 2011
  45. Dec 10, 2011
  47. Dec 01, 2011
  49. Nov 16, 2011
  51. Nov 03, 2011
  53. Oct 27, 2011
  55. Oct 23, 2011
  57. Oct 05, 2011

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