Split fenv_private.h out of math_private.h more consistently.

On some architectures, the parts of math_private.h relating to the
floating-point environment are in a separate file fenv_private.h
included from math_private.h.  As this is purely an
architecture-specific convention used by several architectures,
however, all such architectures still need their own math_private.h,
even if it has nothing to do beyond #include <fenv_private.h> and
peculiarity of including the i386 file directly instead of having a
shared file in sysdeps/x86.

This patch makes the fenv_private.h name an architecture-independent
convention in glibc.  The include of fenv_private.h from
math_private.h becomes architecture-independent (until callers are
updated to include fenv_private.h directly so the include from
math_private.h is no longer needed).  Some architecture math_private.h
headers are removed if no longer needed, or renamed to fenv_private.h
if all they define belongs in that header; architecture fenv_private.h
headers now do require #include_next <fenv_private.h>.  The i386
fenv_private.h file moves to sysdeps/x86/fpu/ to reflect how it is
actually shared with x86_64.  The generic math_private.h gets a new
include of <stdbool.h>, as needed for bool in some prototypes in that
header (previously that was indirectly included via include/fenv.h,
which now only gets included too late in math_private.h, after those
prototypes).

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

	* sysdeps/aarch64/fpu/fenv_private.h: New file.  Based on ....
	* sysdeps/aarch64/fpu/math_private.h: ... this file.  All contents
	moved to fenv_private.h except for ...
	(TOINT_INTRINSICS): Kept in math_private.h.
	(roundtoint): Likewise.
	(converttoint): Likewise.
	* sysdeps/arm/fenv_private.h: Change multiple-include guard to
	[ARM_FENV_PRIVATE_H].  Include next <fenv_private.h>.
	* sysdeps/arm/math_private.h: Remove.
	* sysdeps/generic/fenv_private.h: New file.  Contents moved from
	....
	* sysdeps/generic/math_private.h: ... this file.  Include
	<stdbool.h>.  Do not include <fenv.h> or <get-rounding-mode.h>.
	Include <fenv_private.h>.  Remove functions and macros moved to
	fenv_private.h.
	* sysdeps/i386/fpu/math_private.h: Remove.
	* sysdeps/mips/math_private.h: Move to ....
	* sysdeps/mips/fpu/fenv_private.h: ... here.  Change
	multiple-include guard to [MIPS_FENV_PRIVATE_H].  Remove
	[__mips_hard_float] conditional.  Include next <fenv_private.h>.
	* sysdeps/powerpc/fpu/fenv_private.h: Change multiple-include
	guard to [POWERPC_FENV_PRIVATE_H].  Include next <fenv_private.h>.
	* sysdeps/powerpc/fpu/math_private.h: Do not include
	<fenv_private.h>.
	* sysdeps/riscv/rvf/math_private.h: Move to ....
	* sysdeps/riscv/rvf/fenv_private.h: ... here.  Change
	multiple-include guard to [RISCV_FENV_PRIVATE_H].  Include next
	<fenv_private.h>.
	* sysdeps/sparc/fpu/fenv_private.h: Change multiple-include guard
	to [SPARC_FENV_PRIVATE_H].  Include next <fenv_private.h>.
	* sysdeps/sparc/fpu/math_private.h: Remove.
	* sysdeps/i386/fpu/fenv_private.h: Move to ....
	* sysdeps/x86/fpu/fenv_private.h: ... here.  Change
	multiple-include guard to [X86_FENV_PRIVATE_H].  Include next
	<fenv_private.h>.
	* sysdeps/x86_64/fpu/math_private.h: Do not include
	<sysdeps/i386/fpu/fenv_private.h>.

1 files changed, 52 insertions, 56 deletions

diff --git a/sysdeps/mips/math_private.h b/sysdeps/mips/fpu/fenv_private.h
index 01ae8b1..ae6f8eb 100644
--- a/sysdeps/mips/math_private.h
+++ b/sysdeps/mips/fpu/fenv_private.h
@@ -16,22 +16,20 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#ifndef MIPS_MATH_PRIVATE_H
-#define MIPS_MATH_PRIVATE_H 1
+#ifndef MIPS_FENV_PRIVATE_H
+#define MIPS_FENV_PRIVATE_H 1
 
 /* Inline functions to speed up the math library implementation.  The
-   default versions of these routines are in generic/math_private.h
+   default versions of these routines are in generic/fenv_private.h
    and call fesetround, feholdexcept, etc.  These routines use inlined
    code instead.  */
 
-#ifdef __mips_hard_float
+#include <fenv.h>
+#include <fenv_libc.h>
+#include <fpu_control.h>
 
-# include <fenv.h>
-# include <fenv_libc.h>
-# include <fpu_control.h>
-
-# define _FPU_MASK_ALL (_FPU_MASK_V | _FPU_MASK_Z | _FPU_MASK_O \
-			|_FPU_MASK_U | _FPU_MASK_I | FE_ALL_EXCEPT)
+#define _FPU_MASK_ALL (_FPU_MASK_V | _FPU_MASK_Z | _FPU_MASK_O \
+		       |_FPU_MASK_U | _FPU_MASK_I | FE_ALL_EXCEPT)
 
 static __always_inline void
 libc_feholdexcept_mips (fenv_t *envp)
@@ -46,9 +44,9 @@ libc_feholdexcept_mips (fenv_t *envp)
   cw &= ~(_FPU_MASK_ALL);
   _FPU_SETCW (cw);
 }
-# define libc_feholdexcept libc_feholdexcept_mips
-# define libc_feholdexceptf libc_feholdexcept_mips
-# define libc_feholdexceptl libc_feholdexcept_mips
+#define libc_feholdexcept libc_feholdexcept_mips
+#define libc_feholdexceptf libc_feholdexcept_mips
+#define libc_feholdexceptl libc_feholdexcept_mips
 
 static __always_inline void
 libc_fesetround_mips (int round)
@@ -65,9 +63,9 @@ libc_fesetround_mips (int round)
   /* Set new state.  */
   _FPU_SETCW (cw);
 }
-# define libc_fesetround libc_fesetround_mips
-# define libc_fesetroundf libc_fesetround_mips
-# define libc_fesetroundl libc_fesetround_mips
+#define libc_fesetround libc_fesetround_mips
+#define libc_fesetroundf libc_fesetround_mips
+#define libc_fesetroundl libc_fesetround_mips
 
 static __always_inline void
 libc_feholdexcept_setround_mips (fenv_t *envp, int round)
@@ -88,13 +86,13 @@ libc_feholdexcept_setround_mips (fenv_t *envp, int round)
   /* Set new state.  */
   _FPU_SETCW (cw);
 }
-# define libc_feholdexcept_setround libc_feholdexcept_setround_mips
-# define libc_feholdexcept_setroundf libc_feholdexcept_setround_mips
-# define libc_feholdexcept_setroundl libc_feholdexcept_setround_mips
+#define libc_feholdexcept_setround libc_feholdexcept_setround_mips
+#define libc_feholdexcept_setroundf libc_feholdexcept_setround_mips
+#define libc_feholdexcept_setroundl libc_feholdexcept_setround_mips
 
-# define libc_feholdsetround libc_feholdexcept_setround_mips
-# define libc_feholdsetroundf libc_feholdexcept_setround_mips
-# define libc_feholdsetroundl libc_feholdexcept_setround_mips
+#define libc_feholdsetround libc_feholdexcept_setround_mips
+#define libc_feholdsetroundf libc_feholdexcept_setround_mips
+#define libc_feholdsetroundl libc_feholdexcept_setround_mips
 
 static __always_inline void
 libc_fesetenv_mips (fenv_t *envp)
@@ -106,9 +104,9 @@ libc_fesetenv_mips (fenv_t *envp)
 
   _FPU_SETCW (envp->__fp_control_register);
 }
-# define libc_fesetenv libc_fesetenv_mips
-# define libc_fesetenvf libc_fesetenv_mips
-# define libc_fesetenvl libc_fesetenv_mips
+#define libc_fesetenv libc_fesetenv_mips
+#define libc_fesetenvf libc_fesetenv_mips
+#define libc_fesetenvl libc_fesetenv_mips
 
 static __always_inline int
 libc_feupdateenv_test_mips (fenv_t *envp, int excepts)
@@ -131,22 +129,22 @@ libc_feupdateenv_test_mips (fenv_t *envp, int excepts)
 
   return cw & excepts & FE_ALL_EXCEPT;
 }
-# define libc_feupdateenv_test libc_feupdateenv_test_mips
-# define libc_feupdateenv_testf libc_feupdateenv_test_mips
-# define libc_feupdateenv_testl libc_feupdateenv_test_mips
+#define libc_feupdateenv_test libc_feupdateenv_test_mips
+#define libc_feupdateenv_testf libc_feupdateenv_test_mips
+#define libc_feupdateenv_testl libc_feupdateenv_test_mips
 
 static __always_inline void
 libc_feupdateenv_mips (fenv_t *envp)
 {
   libc_feupdateenv_test_mips (envp, 0);
 }
-# define libc_feupdateenv libc_feupdateenv_mips
-# define libc_feupdateenvf libc_feupdateenv_mips
-# define libc_feupdateenvl libc_feupdateenv_mips
+#define libc_feupdateenv libc_feupdateenv_mips
+#define libc_feupdateenvf libc_feupdateenv_mips
+#define libc_feupdateenvl libc_feupdateenv_mips
 
-# define libc_feresetround libc_feupdateenv_mips
-# define libc_feresetroundf libc_feupdateenv_mips
-# define libc_feresetroundl libc_feupdateenv_mips
+#define libc_feresetround libc_feupdateenv_mips
+#define libc_feresetroundf libc_feupdateenv_mips
+#define libc_feresetroundl libc_feupdateenv_mips
 
 static __always_inline int
 libc_fetestexcept_mips (int excepts)
@@ -158,12 +156,12 @@ libc_fetestexcept_mips (int excepts)
 
   return cw & excepts & FE_ALL_EXCEPT;
 }
-# define libc_fetestexcept libc_fetestexcept_mips
-# define libc_fetestexceptf libc_fetestexcept_mips
-# define libc_fetestexceptl libc_fetestexcept_mips
+#define libc_fetestexcept libc_fetestexcept_mips
+#define libc_fetestexceptf libc_fetestexcept_mips
+#define libc_fetestexceptl libc_fetestexcept_mips
 
 /*  Enable support for rounding mode context.  */
-# define HAVE_RM_CTX 1
+#define HAVE_RM_CTX 1
 
 static __always_inline void
 libc_feholdexcept_setround_mips_ctx (struct rm_ctx *ctx, int round)
@@ -188,18 +186,18 @@ libc_feholdexcept_setround_mips_ctx (struct rm_ctx *ctx, int round)
   else
     ctx->updated_status = false;
 }
-# define libc_feholdexcept_setround_ctx   libc_feholdexcept_setround_mips_ctx
-# define libc_feholdexcept_setroundf_ctx  libc_feholdexcept_setround_mips_ctx
-# define libc_feholdexcept_setroundl_ctx  libc_feholdexcept_setround_mips_ctx
+#define libc_feholdexcept_setround_ctx   libc_feholdexcept_setround_mips_ctx
+#define libc_feholdexcept_setroundf_ctx  libc_feholdexcept_setround_mips_ctx
+#define libc_feholdexcept_setroundl_ctx  libc_feholdexcept_setround_mips_ctx
 
 static __always_inline void
 libc_fesetenv_mips_ctx (struct rm_ctx *ctx)
 {
   libc_fesetenv_mips (&ctx->env);
 }
-# define libc_fesetenv_ctx                libc_fesetenv_mips_ctx
-# define libc_fesetenvf_ctx               libc_fesetenv_mips_ctx
-# define libc_fesetenvl_ctx               libc_fesetenv_mips_ctx
+#define libc_fesetenv_ctx                libc_fesetenv_mips_ctx
+#define libc_fesetenvf_ctx               libc_fesetenv_mips_ctx
+#define libc_fesetenvl_ctx               libc_fesetenv_mips_ctx
 
 static __always_inline void
 libc_feupdateenv_mips_ctx (struct rm_ctx *ctx)
@@ -207,12 +205,12 @@ libc_feupdateenv_mips_ctx (struct rm_ctx *ctx)
   if (__glibc_unlikely (ctx->updated_status))
     libc_feupdateenv_test_mips (&ctx->env, 0);
 }
-# define libc_feupdateenv_ctx             libc_feupdateenv_mips_ctx
-# define libc_feupdateenvf_ctx            libc_feupdateenv_mips_ctx
-# define libc_feupdateenvl_ctx            libc_feupdateenv_mips_ctx
-# define libc_feresetround_ctx            libc_feupdateenv_mips_ctx
-# define libc_feresetroundf_ctx           libc_feupdateenv_mips_ctx
-# define libc_feresetroundl_ctx           libc_feupdateenv_mips_ctx
+#define libc_feupdateenv_ctx             libc_feupdateenv_mips_ctx
+#define libc_feupdateenvf_ctx            libc_feupdateenv_mips_ctx
+#define libc_feupdateenvl_ctx            libc_feupdateenv_mips_ctx
+#define libc_feresetround_ctx            libc_feupdateenv_mips_ctx
+#define libc_feresetroundf_ctx           libc_feupdateenv_mips_ctx
+#define libc_feresetroundl_ctx           libc_feupdateenv_mips_ctx
 
 static __always_inline void
 libc_feholdsetround_mips_ctx (struct rm_ctx *ctx, int round)
@@ -234,12 +232,10 @@ libc_feholdsetround_mips_ctx (struct rm_ctx *ctx, int round)
   else
     ctx->updated_status = false;
 }
-# define libc_feholdsetround_ctx          libc_feholdsetround_mips_ctx
-# define libc_feholdsetroundf_ctx         libc_feholdsetround_mips_ctx
-# define libc_feholdsetroundl_ctx         libc_feholdsetround_mips_ctx
-
-#endif
+#define libc_feholdsetround_ctx          libc_feholdsetround_mips_ctx
+#define libc_feholdsetroundf_ctx         libc_feholdsetround_mips_ctx
+#define libc_feholdsetroundl_ctx         libc_feholdsetround_mips_ctx
 
-#include_next <math_private.h>
+#include_next <fenv_private.h>
 
 #endif