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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2016-06-06 22:26:10 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-14 13:58:27 +1000 |
| commit | f55d966536034d33476fdd43c45d47225344469f (patch) | |
| tree | 65437da4dfbe49e062ffb785c09e3748514a429f /arch/powerpc/kernel/head_64.S | |
| parent | powerpc/pseries: Remove MPIC from pseries event sources (diff) | |
| download | linux-dev-f55d966536034d33476fdd43c45d47225344469f.tar.xz linux-dev-f55d966536034d33476fdd43c45d47225344469f.zip | |
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 '')
| -rw-r--r-- | arch/powerpc/kernel/head_64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 2d14774af6b4..064cd9397836 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -401,7 +401,7 @@ generic_secondary_common_init: ld r12,CPU_SPEC_RESTORE(r23) cmpdi 0,r12,0 beq 3f -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#ifdef PPC64_ELF_ABI_v1 ld r12,0(r12) #endif mtctr r12 |