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authorJoseph Myers <joseph@codesourcery.com>2017-06-23 20:04:23 +0000
committerJoseph Myers <joseph@codesourcery.com>2017-06-23 20:04:23 +0000
commit16000c8d04f60a15fc0187e8719d741329501c39 (patch)
tree5710ffa231ea070279974c830e6e50bb9e1c259d /sysdeps/x86_64/preconfigure
parent049816c3be14e47e5fe10f8cd5a38bb611d34ce5 (diff)
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Avoid localplt issues from x86 fereaiseexcept inline.
Building for x86_64 with float128 support, I get a localplt test
failure from lrintf128 calling feraiseexcept.

The problem is that an inline optimized version of feraiseexcept calls
__feraiseexcept_renamed in cases where it doesn't completely expand
inline, and that in turn is redirected to feraiseexcept for a library
call, so meaning the redirection of feraiseexcept to
__GI_feraiseexcept inside libm is lost for that call.

This patch fixes the problem by moving the redirect to an internal
header in the _LIBC case, with the internal header using
__GI_feraiseexcept where appropriate.

Tested for x86_64 (in conjunction with float128 patches).

	* sysdeps/x86/fpu/bits/fenv.h [_LIBC] (__feraiseexcept_renamed):
	Do not declare.
	* sysdeps/x86/fpu/include/bits/fenv.h [_LIBC &&
	__USE_EXTERN_INLINES] (__feraiseexcept_renamed): Declare here,
	redirected to __GI_feraiseexcept if [SHARED && IS_IN (libm)].
Diffstat (limited to 'sysdeps/x86_64/preconfigure')
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