dcb133b7a4
The changes to restrict implementation-namespace symbol aliases such as __finitel to compat symbols used code for __finitel in libm analogous to that for __finitel in libc. However, the versions for the two symbols are actually different, GLIBC_2.0 in libc and GLIBC_2.1 in libm. This patch fixes the handling of the libm compat symbol. Tested for mips (o32), where it fixes an ABI test failure. * sysdeps/ieee754/dbl-64/s_finite.c [NO_LONG_DOUBLE && LDBL_CLASSIFY_COMPAT] (__finitel): Define compat symbol at version GLIBC_2_1 and use GLIBC_2_1 in SHLIB_COMPAT condition for libm, not GLIBC_2_0. * sysdeps/ieee754/dbl-64/wordsize-64/s_finite.c [NO_LONG_DOUBLE && LDBL_CLASSIFY_COMPAT] (__finitel): Likewise.
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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/*
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* finite(x) returns 1 is x is finite, else 0;
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* no branching!
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*/
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#include <math.h>
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#include <math_private.h>
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#include <shlib-compat.h>
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#include <stdint.h>
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#undef __finite
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int
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__finite(double x)
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{
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int64_t lx;
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EXTRACT_WORDS64(lx,x);
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return (int)((uint64_t)((lx&INT64_C(0x7ff0000000000000))-INT64_C(0x7ff0000000000000))>>63);
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}
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hidden_def (__finite)
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weak_alias (__finite, finite)
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#ifdef NO_LONG_DOUBLE
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# ifdef LDBL_CLASSIFY_COMPAT
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# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libc, __finite, __finitel, GLIBC_2_0);
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# endif
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# if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_23)
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compat_symbol (libm, __finite, __finitel, GLIBC_2_1);
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# endif
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# endif
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weak_alias (__finite, finitel)
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#endif
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