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1. Add default ISA level selection in non-multiarch/rtld
implementations.
2. Add ISA level build guards to different implementations.
- I.e strcpy-avx2.S which is ISA level 3 will only build if
compiled ISA level <= 3. Otherwise there is no reason to
include it as we will always use one of the ISA level 4
implementations (strcpy-evex.S).
3. Refactor the ifunc selector and ifunc implementation list to use
the ISA level aware wrapper macros that allow functions below the
compiled ISA level (with a guranteed replacement) to be skipped.
Tested with and without multiarch on x86_64 for ISA levels:
{generic, x86-64-v2, x86-64-v3, x86-64-v4}
And m32 with and without multiarch.
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2004-05-27 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/fpu/bits/mathinline.h (__expm1_code): Define using
__builtin_expm1l for GCC 3.5+.
(__expl): Define using __builtin_expl for GCC 3.4+.
(exp, expf, expl): Don't define for GCC 3.4+.
(tan, tanf, tanl): Don't define for GCC 3.5+.
(__atan2l): Define using __builtin_atan2l for GCC 3.4+.
(atan2, atan2f, atan2l): Don't define for GCC 3.4+ or !__FAST_MATH__.
(fmod, fmodf, fmodl): Don't define for GCC 3.5+ or !__FAST_MATH__.
(fabsf, fabsl): Only provide if __USE_MISC or __USE_ISOC99.
(sin, sinf, sinl, cos, cosf, cosl, log, logf, logl): Don't define
for GCC 3.4+.
(log10, log10f, log10l, asin, asinf, asinl, acos, acosf, acosl):
Don't define for GCC 3.5+.
(atan, atanf, atanl): Don't define for GCC 3.4+ or !__FAST_MATH__.
(log1p, log1pf, log1pl, logb, logbf, logbl, log2, log2f, log2l): Don't
define for GCC 3.5+.
(drem, dremf, dreml): Don't define for GCC 3.5+ or !__FAST_MATH__.
* sysdeps/sparc/fpu/bits/mathinline.h (sqrt, sqrtf, sqrtl): Don't
define for GCC 3.2+.
2004-05-27 Jakub Jelinek <jakub@redhat.com>
* string/bits/string2.h (__bzero): Define even for GCC 3.0+.
* sysdeps/alpha/stpcpy.S (stpcpy): Add libc_hidden_builtin_def.
* sysdeps/alpha/alphaev67/stpcpy.S (stpcpy): Likewise.
* sysdeps/powerpc/powerpc32/stpcpy.S (stpcpy): Likewise.
* sysdeps/powerpc/powerpc64/stpcpy.S (stpcpy): Likewise.
* sysdeps/sparc/sparc32/stpcpy.S (stpcpy): Likewise.
* sysdeps/sparc/sparc64/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/i586/stpcpy.S (stpcpy): Likewise.
* sysdeps/generic/stpcpy.c (stpcpy): Likewise.
* sysdeps/x86_64/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/i586/memcpy.S (memcpy): Remove
libc_hidden_builtin_def if MEMPCPY_P.
* sysdeps/x86_64/memcpy.S (memcpy): Likewise.
* sysdeps/i386/i686/mempcpy.S (mempcpy): Add libc_hidden_builtin_def.
* sysdeps/i386/i586/mempcpy.S (mempcpy): Likewise.
* sysdeps/generic/mempcpy.c (mempcpy): Likewise.
* sysdeps/x86_64/mempcpy.S (mempcpy): Likewise.
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