diff options
| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2017-10-31 18:22:23 +0100 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@mellanox.com> | 2017-10-31 16:54:03 -0400 |
| commit | ea82daf4354e45e9b830d9fe58713011c83b07b8 (patch) | |
| tree | 41ccea2a4be32812991dace793a1cf58a70db0af /arch/tile | |
| parent | 8a5776a5f49812d29fe4b2d0a2d71675c3facf3f (diff) | |
| download | lwn-ea82daf4354e45e9b830d9fe58713011c83b07b8.tar.gz lwn-ea82daf4354e45e9b830d9fe58713011c83b07b8.zip | |
tile: pass machine size to sparse
By default, sparse assumes a 64bit machine when compiled on x86-64
and 32bit when compiled on anything else.
This can of course create all sort of problems, like issuing false
warnings like: 'constant ... is so big it is unsigned long long'
or 'shift too big (32) for type unsigned long' when the architecture
is 64bit while sparse was compiled on a 32bit machine, or worse,
to not emit legitimate warnings in the reverse situation.
Fix this by passing to sparse the appropriate -m32/-m64 flag.
To: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Diffstat (limited to 'arch/tile')
| -rw-r--r-- | arch/tile/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/tile/Makefile b/arch/tile/Makefile index 4dc380a519d4..8fa0befba32b 100644 --- a/arch/tile/Makefile +++ b/arch/tile/Makefile @@ -51,6 +51,8 @@ else BITS := 32 endif +CHECKFLAGS += -m$(BITS) + head-y := arch/tile/kernel/head_$(BITS).o libs-y += arch/tile/lib/ |