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Joseph Myers 015c6dc288 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.
 		2017-11-17 22:01:43 +00:00
..
aarch64 aarch64: Fix f{max,min}{f} build for GCC 4.9 and 5 2017-11-17 09:23:07 -02:00
alpha nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
arm Prefer https for Sourceware links 2017-11-16 11:49:26 +05:30
generic ld.so: Add architecture specific fields 2017-11-13 08:02:52 -08:00
gnu The -Wstringop-truncation option new in GCC 8 detects common misuses 2017-11-15 17:39:59 -07:00
hppa Fix clog10_downward ulps on hppa. 2017-11-11 12:12:28 -05:00
i386 nptl: Add tests for internal pthread_mutex_t offsets 2017-11-07 09:48:28 -02:00
ia64 Support bits/floatn.h inclusion from .S files. 2017-11-17 22:01:43 +00:00
ieee754 Support bits/floatn.h inclusion from .S files. 2017-11-17 22:01:43 +00:00
init_array
…
m68k nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
mach Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN 2017-10-03 01:33:38 +02:00
microblaze nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
mips Support bits/floatn.h inclusion from .S files. 2017-11-17 22:01:43 +00:00
nios2 nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
nptl nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
posix Cleanup sigpause implementation 2017-11-15 15:45:39 -02:00
powerpc Support bits/floatn.h inclusion from .S files. 2017-11-17 22:01:43 +00:00
pthread aio: Remove internal_function function attribute 2017-08-31 15:59:06 +02:00
s390 nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
sh nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
sparc nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
tile nptl: Define __PTHREAD_MUTEX_{NUSERS_AFTER_KIND,USE_UNION} 2017-11-07 09:48:41 -02:00
unix Add AArch64 HWCAP_DCPOP from Linux 4.14. 2017-11-17 14:03:04 +00:00
wordsize-32 Build divdi3 only for architecture that required it 2017-04-06 15:14:34 -03:00
wordsize-64 posix: Consolidate Linux glob implementation 2017-09-08 16:34:02 +02:00
x86 Support bits/floatn.h inclusion from .S files. 2017-11-17 22:01:43 +00:00
x86_64 nptl: Add tests for internal pthread_mutex_t offsets 2017-11-07 09:48:28 -02:00