Don't inline fenv.h functions on arm for now. Inlining makes sense:
the function bodies require only 2 to 10 instructions. However, it leads to application binaries that refer to a private ABI, namely, the softfloat innards in libc. This could complicate future changes in the implementation of the floating-point emulation layer, so it seems best to have programs refer to the official fe* entry points in libm.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=230367
@ -30,6 +30,8 @@ __FBSDID("$FreeBSD$");
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#include <fenv.h>
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#include <float.h>
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#include "softfloat-for-gcc.h"
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#include "milieu.h"
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#include "softfloat.h"
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int
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@ -5,8 +5,13 @@ FBSD_1.0 {
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};
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FBSD_1.3 {
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feclearexcept;
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fegetexceptflag;
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fesetexceptflag;
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feraiseexcept;
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fetestexcept;
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fegetround;
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fesetround;
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fegetenv;
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feholdexcept;
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feupdateenv;
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@ -29,6 +29,20 @@
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#define __fenv_static
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#include "fenv.h"
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/*
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* The following macros map between the softfloat emulator's flags and
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* the hardware's FPSR. The hardware this file was written for doesn't
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* have rounding control bits, so we stick those in the system ID byte.
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*/
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#define __set_env(env, flags, mask, rnd) env = ((flags) \
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| (mask)<<_FPUSW_SHIFT \
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| (rnd) << 24)
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#define __env_flags(env) ((env) & FE_ALL_EXCEPT)
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#define __env_mask(env) (((env) >> _FPUSW_SHIFT) \
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& FE_ALL_EXCEPT)
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#define __env_round(env) (((env) >> 24) & _ROUND_MASK)
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#include "fenv-softfloat.h"
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#ifdef __GNUC_GNU_INLINE__
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#error "This file must be compiled with C99 'inline' semantics"
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#endif
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@ -65,19 +65,18 @@ extern const fenv_t __fe_dfl_env;
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#define _ENABLE_MASK (FE_ALL_EXCEPT << _FPUSW_SHIFT)
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#ifndef ARM_HARD_FLOAT
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/*
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* The following macros map between the softfloat emulator's flags and
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* the hardware's FPSR. The hardware this file was written for doesn't
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* have rounding control bits, so we stick those in the system ID byte.
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*/
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#define __set_env(env, flags, mask, rnd) env = ((flags) \
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| (mask)<<_FPUSW_SHIFT \
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| (rnd) << 24)
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#define __env_flags(env) ((env) & FE_ALL_EXCEPT)
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#define __env_mask(env) (((env) >> _FPUSW_SHIFT) \
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& FE_ALL_EXCEPT)
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#define __env_round(env) (((env) >> 24) & _ROUND_MASK)
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#include <fenv-softfloat.h>
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int feclearexcept(int __excepts);
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int fegetexceptflag(fexcept_t *__flagp, int __excepts);
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int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
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int feraiseexcept(int __excepts);
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int fetestexcept(int __excepts);
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int fegetround(void);
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int fesetround(int __round);
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int fegetenv(fenv_t *__envp);
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int feholdexcept(fenv_t *__envp);
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int fesetenv(const fenv_t *__envp);
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int feupdateenv(const fenv_t *__envp);
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#else /* ARM_HARD_FLOAT */
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