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9ed2e15ff4
glibc/sysdeps
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Joseph Myers 9ed2e15ff4 Move math_opt_barrier, math_force_eval to separate math-barriers.h. 
This patch continues cleaning up math_private.h by moving the
math_opt_barrier and math_force_eval macros to a separate header
math-barriers.h.

At present, those macros are inside a "#ifndef math_opt_barrier" in
math_private.h to allow architectures to override them and then use
a separate math-barriers.h header, no such #ifndef or #include_next is
needed; architectures just have their own alternative version of
math-barriers.h when providing their own optimized versions that avoid
going through memory unnecessarily.  The generic math-barriers.h has a
comment added to document these two macros.

In this patch, math_private.h is made to #include <math-barriers.h>,
so files using these macros do not need updating yet.  That is because
of uses of math_force_eval in math_check_force_underflow and
math_check_force_underflow_nonneg, which are still defined in
math_private.h.  Once those are moved out to a separate header, that
separate header can be made to include <math-barriers.h>, as can the
other files directly using these barrier macros, and then the include
of <math-barriers.h> from math_private.h can be removed.

Tested for x86_64 and x86.  Also tested with build-many-glibcs.py that
installed stripped shared libraries are unchanged by this patch.

	* sysdeps/generic/math-barriers.h: New file.
	* sysdeps/generic/math_private.h [!math_opt_barrier]
	(math_opt_barrier): Move to math-barriers.h.
	[!math_opt_barrier] (math_force_eval): Likewise.
	* sysdeps/aarch64/fpu/math-barriers.h: New file.
	* sysdeps/aarch64/fpu/math_private.h (math_opt_barrier): Move to
	math-barriers.h.
	(math_force_eval): Likewise.
	* sysdeps/alpha/fpu/math-barriers.h: New file.
	* sysdeps/alpha/fpu/math_private.h (math_opt_barrier): Move to
	math-barriers.h.
	(math_force_eval): Likewise.
	* sysdeps/x86/fpu/math-barriers.h: New file.
	* sysdeps/i386/fpu/fenv_private.h (math_opt_barrier): Move to
	math-barriers.h.
	(math_force_eval): Likewise.
	* sysdeps/m68k/m680x0/fpu/math_private.h: Move to....
	* sysdeps/m68k/m680x0/fpu/math-barriers.h: ... here.  Adjust
	multiple-include guard for rename.
	* sysdeps/powerpc/fpu/math-barriers.h: New file.
	* sysdeps/powerpc/fpu/math_private.h (math_opt_barrier): Move to
	math-barriers.h.
	(math_force_eval): Likewise.
2018-05-09 19:45:47 +00:00
..
aarch64 Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
alpha Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
arm Drop fpregset unused symbol exposition 2018-04-20 01:27:13 +02:00
generic Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
gnu Increase robustness of internal dlopen() by using RTLD_NOW [BZ #22766] 2018-04-26 10:41:43 -03:00
hppa Update hppa libm-test-ulps 2018-04-20 15:36:41 -03:00
htl hurd: Avoid exposing all <sched.h> symbols from sys/types.h 2018-04-19 20:24:36 +02:00
hurd hurd: Fix hurd installed headers test 2018-04-20 00:16:40 +02:00
i386 Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
ia64 elf: Unify symbol address run-time calculation [BZ #19818] 2018-04-04 23:09:37 +01:00
ieee754 Move math_narrow_eval to separate math-narrow-eval.h. 2018-05-09 00:15:10 +00:00
init_array sysdeps/init_array: Add PREINIT_FUNCTION to crti.S 2018-01-29 10:22:26 -08:00
m68k Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
mach Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
microblaze elf: Unify symbol address run-time calculation [BZ #19818] 2018-04-04 23:09:37 +01:00
mips Drop fpregset unused symbol exposition 2018-04-20 01:27:13 +02:00
nios2 Update sysdeps/nios2/libm-test-ulps 2018-04-19 12:00:58 -07:00
nptl Fix comment typo 2018-05-08 14:59:13 +02:00
posix Consolidate Linux readdir{64}{_r} implementation 2018-04-06 17:49:02 -03:00
powerpc Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
pthread hurd: fix sigevent's sigev_notify_attributes field type 2018-04-19 21:43:44 +02:00
riscv elf: Unify symbol address run-time calculation [BZ #19818] 2018-04-04 23:09:37 +01:00
s390 S390: Regenerate ULPs. 2018-04-05 16:24:06 +02:00
sh elf: Unify symbol address run-time calculation [BZ #19818] 2018-04-04 23:09:37 +01:00
sparc Update SPARC libm-test-ulps. 2018-04-05 17:10:03 -03:00
unix Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
wordsize-32 Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
wordsize-64 Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
x86 Move math_opt_barrier, math_force_eval to separate math-barriers.h. 2018-05-09 19:45:47 +00:00
x86_64 x86-64/memset: Mark the debugger symbol as hidden 2018-05-07 11:01:48 -07:00