linux/scripts/Kbuild.include, branch v3.4.9

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

2012-03-24T22:32:05Z

"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. Signed-off-by: Bernhard Walle Andreas Bießmann Signed-off-by: Michal Marek

kbuild: add `baseprereq'

2011-06-09T18:04:38Z

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

2011-05-16T14:39:28Z

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+

2011-05-03T08:50:54Z

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

2011-04-20T13:39:22Z

The D option of ar is only available in newer versions. Signed-off-by: Michal Marek

kbuild: generate modules.builtin

2009-12-12T12:08:16Z

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'

2009-10-11T21:21:25Z

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

2009-09-20T10:27:43Z

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

2009-09-20T10:27:42Z

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

2009-09-20T10:27:42Z

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