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| author | Sam Ravnborg <sam@ravnborg.org> | 2010-07-28 17:33:09 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-08-03 14:09:45 +0200 |
| commit | 6588169d516560f68672e2928680b71c647b7806 (patch) | |
| tree | 91b20bf9197c718ff4b5830bb1aea0b1bc0de272 /scripts/Makefile.build | |
| parent | Kbuild: Add option to set -femit-struct-debug-baseonly (diff) | |
| download | linux-6588169d516560f68672e2928680b71c647b7806.tar.xz linux-6588169d516560f68672e2928680b71c647b7806.zip | |
kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line
It is now possible to assign options to AS, CC and LD
on the command line - which is only used when building modules.
{A,C,LD}FLAGS_MODULE was all used both in the top-level Makefile
in the arch makefiles, thus users had no way to specify
additional options to AS, CC, LD when building modules
without overriding the original value.
Introduce a new set of variables KBUILD_{A,C,LD}FLAGS_MODULE
that is used by arch specific files and free up
{A,C,LD}FLAGS_MODULE so they can be assigned on
the command line.
All arch Makefiles that used the old variables has been updated.
Note: Previously we had a MODFLAGS variable for both
AS and CC. But in favour of consistency this was dropped.
So in some cases arch Makefile has one assignmnet replaced by
two assignmnets.
Note2: MODFLAGS was not documented and is dropped
without any notice. I do not expect much/any breakage
from this.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin]
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [avr32]
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 390aae4bb222..5e7c40e16545 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -115,7 +115,10 @@ endif # --------------------------------------------------------------------------- # Default is built-in, unless we know otherwise -modkern_cflags = $(if $(part-of-module), $(CFLAGS_MODULE), $(CFLAGS_KERNEL)) +modkern_cflags = \ + $(if $(part-of-module), \ + $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \ + $(CFLAGS_KERNEL)) quiet_modtag := $(empty) $(empty) $(real-objs-m) : part-of-module := y @@ -250,8 +253,8 @@ $(obj)/%.lst: $(src)/%.c FORCE modkern_aflags := $(AFLAGS_KERNEL) -$(real-objs-m) : modkern_aflags := $(AFLAGS_MODULE) -$(real-objs-m:.o=.s): modkern_aflags := $(AFLAGS_MODULE) +$(real-objs-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE) +$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE) quiet_cmd_as_s_S = CPP $(quiet_modtag) $@ cmd_as_s_S = $(CPP) $(a_flags) -o $@ $< |