diff options
| author | Menglong Dong <menglong8.dong@gmail.com> | 2025-09-17 09:09:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-02 16:14:41 +0300 |
| commit | 4784326cb26a46edb19c4eaa7a529e9bd5e243dc (patch) | |
| tree | 9589607b9addc40709b23d4e4ee3b2d02a4db2e2 /arch/alpha | |
| parent | 797f15c2b15e99d0f621a2519bdb9ce5eff4a3ca (diff) | |
| download | linux-4784326cb26a46edb19c4eaa7a529e9bd5e243dc.tar.xz | |
arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c
[ Upstream commit 35561bab768977c9e05f1f1a9bc00134c85f3e28 ]
The include/generated/asm-offsets.h is generated in Kbuild during
compiling from arch/SRCARCH/kernel/asm-offsets.c. When we want to
generate another similar offset header file, circular dependency can
happen.
For example, we want to generate a offset file include/generated/test.h,
which is included in include/sched/sched.h. If we generate asm-offsets.h
first, it will fail, as include/sched/sched.h is included in asm-offsets.c
and include/generated/test.h doesn't exist; If we generate test.h first,
it can't success neither, as include/generated/asm-offsets.h is included
by it.
In x86_64, the macro COMPILE_OFFSETS is used to avoid such circular
dependency. We can generate asm-offsets.h first, and if the
COMPILE_OFFSETS is defined, we don't include the "generated/test.h".
And we define the macro COMPILE_OFFSETS for all the asm-offsets.c for this
purpose.
Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/alpha')
| -rw-r--r-- | arch/alpha/kernel/asm-offsets.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c index 11c35cf45b46..cb205f22096d 100644 --- a/arch/alpha/kernel/asm-offsets.c +++ b/arch/alpha/kernel/asm-offsets.c @@ -4,6 +4,7 @@ * This code generates raw asm output which is post-processed to extract * and format the required data. */ +#define COMPILE_OFFSETS #include <linux/types.h> #include <linux/stddef.h> |