mirror of git://sourceware.org/git/glibc.git
math: add LDBL_CLASSIFY_COMPAT support
If a platform does not define "long-double-fcts = yes" in its Makefiles and it does define __NO_LONG_DOUBLE_MATH in its installed headers, it will currently create exported symbols for __finitel, __isinfl, and __isnanl that can't be reached from userspace by correct use of the finite(), isinf(), or isnan() macros in <math.h>. To avoid this situation, by default for such platforms we now no longer export these symbols, thus causing appropriate link-time errors. However, for platforms that previously exported these symbols, we continue to do so as compat symbols; this is enabled by adding LDBL_CLASSIFY_COMPAT to math_private.h for the platform. For tile, remove the now-unnecessary exports of those functions from libc and libm.
This commit is contained in:
Chris Metcalf
parent
b3f6040781
commit
e59c94fa0e
28
ChangeLog
28
ChangeLog
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@ -1,3 +1,31 @@
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2015-12-03 Chris Metcalf <cmetcalf@ezchip.com>
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* sysdeps/arm/math_private.h (LDBL_CLASSIFY_COMPAT): New symbol.
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* sysdeps/microblaze/math_private.h (LDBL_CLASSIFY_COMPAT):
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Likewise.
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* sysdeps/mips/math_private.h (LDBL_CLASSIFY_COMPAT): Likewise.
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* sysdeps/nios2/math_private.h (LDBL_CLASSIFY_COMPAT): Likewise.
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* sysdeps/sh/math_private.h: New file.
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* sysdeps/m68k/coldfire/fpu/math_private.h: Likewise.
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* sysdeps/ieee754/dbl-64/s_finite.c [defined NO_LONG_DOUBLE &&
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defined LDBL_CLASSIFY_COMPAT]: Create compat symbol for internal
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long double function name.
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* sysdeps/ieee754/dbl-64/s_isinf.c: Likewise.
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* sysdeps/ieee754/dbl-64/s_isnan.c: Likewise.
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* sysdeps/ieee754/dbl-64/wordsize-64/s_finite.c: Likewise.
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* sysdeps/ieee754/dbl-64/wordsize-64/s_isinf.c: Likewise.
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* sysdeps/ieee754/dbl-64/wordsize-64/s_isnan.c: Likewise.
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* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist:
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Remove __finitel, __isinfl, and __isnanl.
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* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist:
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Likewise.
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* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
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* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
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Remove __finitel.
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* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
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Likewise.
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* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
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2015-12-03 Andrew Senkevich <andrew.senkevich@intel.com>
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* math/Makefile ($(inst_libdir)/libm.so): Corrected path to
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@ -1,6 +1,10 @@
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#ifndef ARM_MATH_PRIVATE_H
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#define ARM_MATH_PRIVATE_H 1
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/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
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when built without long double support. */
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#define LDBL_CLASSIFY_COMPAT 1
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#include "fenv_private.h"
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#include_next <math_private.h>
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@ -21,6 +21,7 @@ static char rcsid[] = "$NetBSD: s_finite.c,v 1.8 1995/05/10 20:47:17 jtc Exp $";
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#include <math.h>
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#include <math_private.h>
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#include <shlib-compat.h>
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#undef __finite
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@ -37,6 +38,13 @@ int FINITE(double x)
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hidden_def (__finite)
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weak_alias (__finite, finite)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__finite, __finitel)
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# ifdef LDBL_CLASSIFY_COMPAT
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# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libc, __finite, __finitel, GLIBC_2_0);
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# endif
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# if SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libm, __finite, __finitel, GLIBC_2_0);
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# endif
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# endif
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weak_alias (__finite, finitel)
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#endif
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@ -15,6 +15,7 @@ static char rcsid[] = "$NetBSD: s_isinf.c,v 1.3 1995/05/11 23:20:14 jtc Exp $";
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#include <math.h>
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#include <math_private.h>
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#include <shlib-compat.h>
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int
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__isinf (double x)
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@ -28,6 +29,8 @@ __isinf (double x)
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hidden_def (__isinf)
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weak_alias (__isinf, isinf)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__isinf, __isinfl)
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# if defined LDBL_CLASSIFY_COMPAT && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libc, __isinf, __isinfl, GLIBC_2_0);
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# endif
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weak_alias (__isinf, isinfl)
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#endif
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@ -21,6 +21,7 @@ static char rcsid[] = "$NetBSD: s_isnan.c,v 1.8 1995/05/10 20:47:36 jtc Exp $";
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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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#undef __isnan
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int
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@ -36,6 +37,8 @@ __isnan (double x)
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hidden_def (__isnan)
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weak_alias (__isnan, isnan)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__isnan, __isnanl)
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# if defined LDBL_CLASSIFY_COMPAT && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
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# endif
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weak_alias (__isnan, isnanl)
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#endif
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@ -16,6 +16,7 @@
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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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@ -29,6 +30,13 @@ __finite(double x)
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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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strong_alias (__finite, __finitel)
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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_0, GLIBC_2_23)
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compat_symbol (libm, __finite, __finitel, GLIBC_2_0);
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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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@ -11,6 +11,7 @@
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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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int
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__isinf (double x)
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@ -25,6 +26,8 @@ __isinf (double x)
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hidden_def (__isinf)
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weak_alias (__isinf, isinf)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__isinf, __isinfl)
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# if defined LDBL_CLASSIFY_COMPAT && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libc, __isinf, __isinfl, GLIBC_2_0);
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# endif
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weak_alias (__isinf, isinfl)
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#endif
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@ -17,6 +17,7 @@
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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 __isnan
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@ -31,6 +32,8 @@ int __isnan(double x)
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hidden_def (__isnan)
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weak_alias (__isnan, isnan)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__isnan, __isnanl)
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# if defined LDBL_CLASSIFY_COMPAT && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_23)
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compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
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# endif
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weak_alias (__isnan, isnanl)
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#endif
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@ -0,0 +1,10 @@
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#ifndef COLDFIRE_MATH_PRIVATE_H
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#define COLDFIRE_MATH_PRIVATE_H 1
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/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
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when built without long double support. */
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#define LDBL_CLASSIFY_COMPAT 1
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#include_next <math_private.h>
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#endif
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@ -26,6 +26,10 @@
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#define libc_feholdexcept_setround(env, exc) ({ (void) (env); 0; })
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#define libc_feupdateenv_test(env, exc) ({ (void) (env); 0; })
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/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
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when built without long double support. */
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#define LDBL_CLASSIFY_COMPAT 1
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#include_next <math_private.h>
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#define feraiseexcept(excepts) ({ 0; })
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@ -248,6 +248,10 @@ libc_feholdsetround_mips_ctx (struct rm_ctx *ctx, int round)
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#endif
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/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
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when built without long double support. */
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#define LDBL_CLASSIFY_COMPAT 1
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#include_next <math_private.h>
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#endif
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@ -25,6 +25,10 @@
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#define libc_feholdexcept_setround(env, exc) ({ (void) (env); 0; })
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#define libc_feupdateenv_test(env, exc) ({ (void) (env); 0; })
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/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
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when built without long double support. */
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#define LDBL_CLASSIFY_COMPAT 1
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#include_next <math_private.h>
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#define feraiseexcept(excepts) ({ 0; })
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@ -0,0 +1,10 @@
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#ifndef SH_MATH_PRIVATE_H
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#define SH_MATH_PRIVATE_H 1
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/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
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when built without long double support. */
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#define LDBL_CLASSIFY_COMPAT 1
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#include_next <math_private.h>
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#endif
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@ -182,7 +182,6 @@ GLIBC_2.12 __fgetws_chk F
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GLIBC_2.12 __fgetws_unlocked_chk F
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GLIBC_2.12 __finite F
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GLIBC_2.12 __finitef F
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GLIBC_2.12 __finitel F
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GLIBC_2.12 __flbf F
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GLIBC_2.12 __fork F
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GLIBC_2.12 __fpending F
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@ -228,11 +227,9 @@ GLIBC_2.12 __isdigit_l F
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GLIBC_2.12 __isgraph_l F
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GLIBC_2.12 __isinf F
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GLIBC_2.12 __isinff F
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GLIBC_2.12 __isinfl F
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GLIBC_2.12 __islower_l F
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GLIBC_2.12 __isnan F
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GLIBC_2.12 __isnanf F
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GLIBC_2.12 __isnanl F
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GLIBC_2.12 __isoc99_fscanf F
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GLIBC_2.12 __isoc99_fwscanf F
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GLIBC_2.12 __isoc99_scanf F
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@ -5,7 +5,6 @@ GLIBC_2.12 __clog10f F
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GLIBC_2.12 __clog10l F
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GLIBC_2.12 __finite F
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GLIBC_2.12 __finitef F
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GLIBC_2.12 __finitel F
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GLIBC_2.12 __fpclassify F
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GLIBC_2.12 __fpclassifyf F
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GLIBC_2.12 __signbit F
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@ -182,7 +182,6 @@ GLIBC_2.12 __fgetws_chk F
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GLIBC_2.12 __fgetws_unlocked_chk F
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GLIBC_2.12 __finite F
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GLIBC_2.12 __finitef F
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GLIBC_2.12 __finitel F
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GLIBC_2.12 __flbf F
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GLIBC_2.12 __fork F
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GLIBC_2.12 __fpending F
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@ -228,11 +227,9 @@ GLIBC_2.12 __isdigit_l F
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GLIBC_2.12 __isgraph_l F
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GLIBC_2.12 __isinf F
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GLIBC_2.12 __isinff F
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GLIBC_2.12 __isinfl F
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GLIBC_2.12 __islower_l F
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GLIBC_2.12 __isnan F
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GLIBC_2.12 __isnanf F
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GLIBC_2.12 __isnanl F
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GLIBC_2.12 __isoc99_fscanf F
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GLIBC_2.12 __isoc99_fwscanf F
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GLIBC_2.12 __isoc99_scanf F
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@ -5,7 +5,6 @@ GLIBC_2.12 __clog10f F
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GLIBC_2.12 __clog10l F
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GLIBC_2.12 __finite F
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GLIBC_2.12 __finitef F
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GLIBC_2.12 __finitel F
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GLIBC_2.12 __fpclassify F
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GLIBC_2.12 __fpclassifyf F
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GLIBC_2.12 __signbit F
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@ -182,7 +182,6 @@ GLIBC_2.12 __fgetws_chk F
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GLIBC_2.12 __fgetws_unlocked_chk F
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GLIBC_2.12 __finite F
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GLIBC_2.12 __finitef F
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GLIBC_2.12 __finitel F
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GLIBC_2.12 __flbf F
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GLIBC_2.12 __fork F
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GLIBC_2.12 __fpending F
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@ -228,11 +227,9 @@ GLIBC_2.12 __isdigit_l F
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GLIBC_2.12 __isgraph_l F
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GLIBC_2.12 __isinf F
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GLIBC_2.12 __isinff F
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GLIBC_2.12 __isinfl F
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GLIBC_2.12 __islower_l F
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GLIBC_2.12 __isnan F
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GLIBC_2.12 __isnanf F
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GLIBC_2.12 __isnanl F
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GLIBC_2.12 __isoc99_fscanf F
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GLIBC_2.12 __isoc99_fwscanf F
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GLIBC_2.12 __isoc99_scanf F
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@ -5,7 +5,6 @@ GLIBC_2.12 __clog10f F
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GLIBC_2.12 __clog10l F
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GLIBC_2.12 __finite F
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GLIBC_2.12 __finitef F
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GLIBC_2.12 __finitel F
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GLIBC_2.12 __fpclassify F
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GLIBC_2.12 __fpclassifyf F
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GLIBC_2.12 __signbit F
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