diff --git a/ChangeLog b/ChangeLog index cc7a92c2d9..fc74d7153c 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2018-01-24 Joseph Myers + * sysdeps/m68k/coldfire/nofpu/math_private.h: New file. Based on + MicroBlaze file. + * sysdeps/unix/sysv/linux/m68k/coldfire/jmp_buf-macros.h: Move to .... * sysdeps/unix/sysv/linux/m68k/coldfire/fpu/jmp_buf-macros.h: diff --git a/sysdeps/m68k/coldfire/nofpu/math_private.h b/sysdeps/m68k/coldfire/nofpu/math_private.h new file mode 100644 index 0000000000..879577b551 --- /dev/null +++ b/sysdeps/m68k/coldfire/nofpu/math_private.h @@ -0,0 +1,52 @@ +/* Disable use of exceptions and rounding modes for no-FPU ColdFire. + Copyright (C) 2012-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#ifndef COLDFIRE_NOFPU_MATH_PRIVATE_H +#define COLDFIRE_NOFPU_MATH_PRIVATE_H 1 + +/* Suppress use of exceptions and rounding modes here to avoid build + errors if the FE_* macros aren't defined. + + We intentionally ignore the "exception" arguments of functions that + take an exception, since we can't even evaluate the argument + without causing a build failure. The extra level of statement + expression wrapping avoids "statement with no effect" warnings. + Since the callers don't check for errors anyway, we just claim + success in every case. + + The overrides for libc_ functions must happen before we include + the generic math_private.h, and the overrides for regular + functions must happen afterwards, to avoid clashing with + the declarations of those functions. */ + +#define libc_fesetround(rnd) ({ 0; }) +#define libc_fetestexcept(exc) ({ 0; }) +#define libc_feholdexcept_setround(env, exc) ({ (void) (env); 0; }) +#define libc_feupdateenv_test(env, exc) ({ (void) (env); 0; }) + +/* Enable __finitel, __isinfl, and __isnanl for binary compatibility + when built without long double support. */ +#define LDBL_CLASSIFY_COMPAT 1 + +#include_next + +#define feraiseexcept(excepts) ({ 0; }) +#define __feraiseexcept(excepts) ({ 0; }) +#define feclearexcept(exc) ({ 0; }) + +#endif