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ef114eafbf
2014-02-17 David Holsgrove <david.holsgrove@xilinx.com>
* sysdeps/microblaze: Move directory from ports/sysdeps/microblaze.
* sysdeps/unix/sysv/linux/microblaze: Move directory from
ports/sysdeps/unix/sysv/linux/microblaze.
* README: Add missing listing for microblaze*-*-linux-gnu.
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
34 lines
1.4 KiB
C
34 lines
1.4 KiB
C
#ifndef _MATH_PRIVATE_H
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/* Suppress use of exceptions here to avoid build errors if the FE_*
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macros aren't definied. Only allow rounding modes implemented for
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MicroBlaze.
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This does mean that some code will silently fail to report exceptions,
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set rounding mode as expected, etc., but it allows math code to compile
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that otherwise wouldn't (such as math/s_fma.c) and so is valuable.
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We intentionally ignore the "exception" arguments of functions that
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take an exception, since we can't even evaluate the argument
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without causing a build failure. The extra level of statement
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expression wrapping avoids "statement with no effect" warnings.
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Since the callers don't check for errors anyway, we just claim
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success in every case.
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The overrides for libc_ functions must happen before we include
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the generic math_private.h, and the overrides for regular
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<fenv.h> functions must happen afterwards, to avoid clashing with
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the declarations of those functions. */
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#define libc_fesetround(rnd) ({ 0; })
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#define libc_fetestexcept(exc) ({ 0; })
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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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#include_next <math_private.h>
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#define feraiseexcept(excepts) ({ 0; })
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#define feclearexcept(exc) ({ 0; })
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#endif
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