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authorSam Ravnborg <sam@ravnborg.org>2010-07-28 19:11:27 +0200
committerMichal Marek <mmarek@suse.cz>2010-08-03 14:09:45 +0200
commit80c00ba942ee39c9a95c06959223560400bbb86e (patch)
treec0ff9363d1e3ab372ae8ed1137b1d012c88e683a /Documentation/kbuild/kbuild.txt
parent6588169d516560f68672e2928680b71c647b7806 (diff)
downloadop-kernel-dev-80c00ba942ee39c9a95c06959223560400bbb86e.zip
op-kernel-dev-80c00ba942ee39c9a95c06959223560400bbb86e.tar.gz
kbuild: allow assignment to {A,C}FLAGS_KERNEL on the command line
It is now possible to assign options to AS and CC on the command line - which is only used for built-in code. {A,C}FLAGS_KERNEL was used both in the top-level Makefile in the arch makefiles, thus users had no way to specify additional options to AS, CC without overriding the original value. Introduce a new set of variables KBUILD_{A,C}FLAGS_KERNEL that is used by arch specific files and free up {A,C}FLAGS_KERNEL so they can be assigned on the command line. All arch Makefiles that used the old variables has been updated. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'Documentation/kbuild/kbuild.txt')
-rw-r--r--Documentation/kbuild/kbuild.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index d9c6554..e903f20 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -28,10 +28,20 @@ AFLAGS_MODULE
--------------------------------------------------
Addtional module specific options to use for $(AS).
+AFLAGS_KERNEL
+--------------------------------------------------
+Addtional options for $(AS) when used for assembler
+code for code that is compiled as built-in.
+
KCFLAGS
--------------------------------------------------
Additional options to the C compiler (for built-in and modules).
+CFLAGS_KERNEL
+--------------------------------------------------
+Addtional options for $(CC) when used to compile
+code that is compiled as built-in.
+
CFLAGS_MODULE
--------------------------------------------------
Addtional module specific options to use for $(CC).
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