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author | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-06 22:26:10 +0530 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-14 13:58:27 +1000 |
commit | f55d966536034d33476fdd43c45d47225344469f (patch) | |
tree | 65437da4dfbe49e062ffb785c09e3748514a429f /arch/powerpc/include/asm/types.h | |
parent | ac9cd1709c0be4334fbad4ab610ecb7acceac884 (diff) | |
download | op-kernel-dev-f55d966536034d33476fdd43c45d47225344469f.zip op-kernel-dev-f55d966536034d33476fdd43c45d47225344469f.tar.gz |
powerpc: Define and use PPC64_ELF_ABI_v2/v1
We're approaching 20 locations where we need to check for ELF ABI v2.
That's fine, except the logic is a bit awkward, because we have to check
that _CALL_ELF is defined and then what its value is.
So check it once in asm/types.h and define PPC64_ELF_ABI_v2 when ELF ABI
v2 is detected.
We also have a few places where what we're really trying to check is
that we are using the 64-bit v1 ABI, ie. function descriptors. So also
add a #define for that, which simplifies several checks.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/types.h')
-rw-r--r-- | arch/powerpc/include/asm/types.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h index bfb6ded..49a0678 100644 --- a/arch/powerpc/include/asm/types.h +++ b/arch/powerpc/include/asm/types.h @@ -15,6 +15,14 @@ #include <uapi/asm/types.h> +#ifdef __powerpc64__ +#if defined(_CALL_ELF) && _CALL_ELF == 2 +#define PPC64_ELF_ABI_v2 +#else +#define PPC64_ELF_ABI_v1 +#endif +#endif /* __powerpc64__ */ + #ifndef __ASSEMBLY__ typedef __vector128 vector128; |