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| author | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-06 19:56:10 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-14 06:58:27 +0300 |
| commit | f55d966536034d33476fdd43c45d47225344469f (patch) | |
| tree | 65437da4dfbe49e062ffb785c09e3748514a429f /arch/powerpc/include/asm/sections.h | |
| parent | ac9cd1709c0be4334fbad4ab610ecb7acceac884 (diff) | |
| download | linux-f55d966536034d33476fdd43c45d47225344469f.tar.xz | |
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/sections.h')
| -rw-r--r-- | arch/powerpc/include/asm/sections.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h index abf5866e08c6..7dc006b58369 100644 --- a/arch/powerpc/include/asm/sections.h +++ b/arch/powerpc/include/asm/sections.h @@ -62,7 +62,7 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end) #endif } -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#ifdef PPC64_ELF_ABI_v1 #undef dereference_function_descriptor static inline void *dereference_function_descriptor(void *ptr) { @@ -73,7 +73,7 @@ static inline void *dereference_function_descriptor(void *ptr) ptr = p; return ptr; } -#endif +#endif /* PPC64_ELF_ABI_v1 */ #endif |