diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2017-11-17 22:01:43 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-11-17 22:01:43 +0000 |
| commit | 015c6dc288003cd6b192f5901a8df2ea16205ee4 (patch) | |
| tree | fe864d1d425b88fe43d51127590599f64c45a7ea /bits/floatn.h | |
| parent | ce003e5d4cd94c5380699b0dadeaaf825813afbe (diff) | |
Support bits/floatn.h inclusion from .S files.
Further _FloatN / _FloatNx type alias support will involve making
architecture-specific .S files use the common macros for libm function
aliases. Making them use those macros will also serve to simplify
existing code for aliases / symbol versions in various cases, similar
to such simplifications for ldbl-opt code.
The libm-alias-*.h files sometimes need to include <bits/floatn.h> to
determine which aliases they should define. At present, this does not
work for inclusion from .S files because <bits/floatn.h> can define
typedefs for old compilers. This patch changes all the
<bits/floatn.h> and <bits/floatn-common.h> headers to include
__ASSEMBLER__ conditionals. Those conditionals disable everything
related to C syntax in the __ASSEMBLER__ case, not just the problem
typedefs, as that seemed cleanest. The __HAVE_* definitions remain in
the __ASSEMBLER__ case, as those provide information that is required
to define the correct set of aliases.
Tested with build-many-glibcs.py for a representative set of
configurations (x86_64-linux-gnu i686-linux-gnu ia64-linux-gnu
powerpc64le-linux-gnu mips64-linux-gnu-n64 sparc64-linux-gnu) with GCC
6. Also tested with GCC 6 for i686-linux-gnu in conjunction with
changes to use alias macros in .S files.
* bits/floatn-common.h [!__ASSEMBLER]: Disable everything related
to C syntax instead of availability and properties of types.
* bits/floatn.h [!__ASSEMBLER]: Likewise.
* sysdeps/ia64/bits/floatn.h [!__ASSEMBLER]: Likewise.
* sysdeps/ieee754/ldbl-128/bits/floatn.h [!__ASSEMBLER]: Likewise.
* sysdeps/mips/ieee754/bits/floatn.h [!__ASSEMBLER]: Likewise.
* sysdeps/powerpc/bits/floatn.h [!__ASSEMBLER]: Likewise.
* sysdeps/x86/bits/floatn.h [!__ASSEMBLER]: Likewise.
Diffstat (limited to 'bits/floatn.h')
| -rw-r--r-- | bits/floatn.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/bits/floatn.h b/bits/floatn.h index 78eb0f47ab..dc0cf93cbf 100644 --- a/bits/floatn.h +++ b/bits/floatn.h @@ -25,13 +25,17 @@ from the default float, double and long double types in this glibc. */ #define __HAVE_DISTINCT_FLOAT128 0 +#ifndef __ASSEMBLER__ + /* Defined to concatenate the literal suffix to be used with _Float128 types, if __HAVE_FLOAT128 is 1. E.g.: #define __f128(x) x##f128. */ -#undef __f128 +# undef __f128 /* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. E.g.: #define __CFLOAT128 _Complex _Float128. */ -#undef __CFLOAT128 +# undef __CFLOAT128 + +#endif /* !__ASSEMBLER__. */ #include <bits/floatn-common.h> |