linux-toradex.git/scripts/Kbuild.include, branch Colibri_T30_LinuxImageV2.3Beta1_20140804

scripts/Kbuild.include: Fix portability problem of "echo -e"

2012-07-23T17:39:14+00:00

"echo -e" is a GNU extension. When cross-compiling the kernel on a
BSD-like operating system (Mac OS X in my case), this doesn't work.

One could install a GNU version of echo, put that in the $PATH before
the system echo and use "/usr/bin/env echo", but the solution with
printf is simpler.

Since it is no disadvantage on Linux, I hope that gets accepted even if
cross-compiling the Linux kernel on another Unix operating system is
quite a rare use case.

(Cherry-picked from upstream v3.4 commit
875de98623fa2b29f0cb19915fe3292ab6daa1cb)

Signed-off-by: Bernhard Walle 
Andreas BieÃmann 
Signed-off-by: Michal Marek 
Signed-off-by: Nuno Subtil 

Change-Id: Iddfeae6611a82e76a5d7cecbc1af25d4fdc71ecc
Reviewed-on: http://git-master/r/116918
Reviewed-by: Donghan Ryu 
Reviewed-by: Dan Willemsen 
Tested-by: Nuno Subtil

kbuild: add `baseprereq'

2011-06-09T18:04:38+00:00

On the same model as `basetarget', it represents the filename of first
prerequisite with directory and extension stripped.

Signed-off-by: Arnaud Lacombe

kbuild: make KBUILD_NOCMDDEP=1 handle empty built-in.o

2011-05-16T14:39:28+00:00

Based on a patch by Rabin Vincent.

Fix building with KBUILD_NOCMDDEP=1, which currently does not work
because it does not build built-in.o with no dependencies:

  LD      fs/notify/built-in.o
ld: cannot find fs/notify/dnotify/built-in.o: No such file or directory
ld: cannot find fs/notify/inotify/built-in.o: No such file or directory
ld: cannot find fs/notify/fanotify/built-in.o: No such file or directory

Reported-and-tested-by: Rabin Vincent 
Signed-off-by: Michal Marek

kbuild: Fix passing -Wno-* options to gcc 4.4+

2011-05-03T08:50:54+00:00

Starting with 4.4, gcc will happily accept -Wno- in the
cc-option test and complain later when compiling a file that has some
other warning. This rather unexpected behavior is intentional as per
http://gcc.gnu.org/PR28322, so work around it by testing for support of
the opposite option (without the no-). Introduce a new Makefile function
cc-disable-warning that does this and update two uses of cc-option in
the toplevel Makefile.

Reported-and-tested-by: Stephen Rothwell 
Signed-off-by: Michal Marek

kbuild: Fix build with binutils <= 2.19

2011-04-20T13:39:22+00:00

The D option of ar is only available in newer versions.

Signed-off-by: Michal Marek

kbuild: generate modules.builtin

2009-12-12T12:08:16+00:00

To make it easier for module-init-tools and scripts like mkinitrd to
distinguish builtin and missing modules, install a modules.builtin file
listing all builtin modules. This is done by generating an additional
config file (tristate.conf) with tristate options set to uppercase 'Y'
or 'M'. If we source that config file, the builtin modules appear in
obj-Y.

Signed-off-by: Michal Marek

kbuild,scripts: use non-builtin echo for '-e'

2009-10-11T21:21:25+00:00

Alek reported that on Ubuntu, where dash is used, 'echo -e'
can't work, so let's use non-builtin echo in this case.

Reported-by: Alek Du 
Signed-off-by: WANG Cong 
Signed-off-by: Sam Ravnborg

kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling

2009-09-20T10:27:43+00:00

The arch/*/boot/Makefile use cc-options to check for GCC command options
and cc-options use the hardened specs when checking for GCC command
options.  When -fPIE is pass to cc1 it can't use -ffreestanding or
-fno-toplevel-reorder.  Then it fail to build stuff with -ffreestanding
and -fno-toplevel-reorder.

Thanks to Fredric Johansson for finding the main problem behind a failed
build using a hardened toolchain.

Signed-off-by: Magnus Granberg 
Signed-off-by: Jory A. Pratt 
Cc: Fredric Johansson 
Cc: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Cc: 
Signed-off-by: Sam Ravnborg

kbuild: introduce ld-option

2009-09-20T10:27:42+00:00

ld-option is used to check if $(LD) supports a specific option.

Based on patch from Andi Kleen.

Cc: Andi Kleen 
Signed-off-by: Sam Ravnborg 
First use is to check if option -X is supported (upcoming patch).
Theis is ne

kbuild: rename ld-option to cc-ldoption

2009-09-20T10:27:42+00:00

ld-option is misnamed as it test options to gcc, not to ld.
Renamed it to reflect this.

Cc: Andi Kleen 
Cc: Roland McGrath 
Signed-off-by: Sam Ravnborg