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author | Chung-Lin Tang <cltang@codesourcery.com> | 2015-01-17 22:29:12 -0800 |
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committer | Chung-Lin Tang <cltang@codesourcery.com> | 2015-01-17 22:29:12 -0800 |
commit | 522e6ee3b45808ea845ec0ac11d5fffcd737baba (patch) | |
tree | 3d107705431599279416406a487cd8a905a372af /sysdeps/nios2/math_private.h | |
parent | 026eb207eda8cc93f6f7f0980f0a8e51587d8011 (diff) | |
download | glibc-522e6ee3b45808ea845ec0ac11d5fffcd737baba.tar.gz glibc-522e6ee3b45808ea845ec0ac11d5fffcd737baba.tar.xz glibc-522e6ee3b45808ea845ec0ac11d5fffcd737baba.zip |
Commit nios2 port to master.
Diffstat (limited to 'sysdeps/nios2/math_private.h')
-rw-r--r-- | sysdeps/nios2/math_private.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/nios2/math_private.h b/sysdeps/nios2/math_private.h new file mode 100644 index 0000000000..a89db448dd --- /dev/null +++ b/sysdeps/nios2/math_private.h @@ -0,0 +1,33 @@ +#ifndef _MATH_PRIVATE_H + +/* Suppress use of exceptions here to avoid build errors if the FE_* + macros aren't defined. Only allow rounding modes implemented for Nios II. + + This does mean that some code will silently fail to report exceptions, + set rounding mode as expected, etc., but it allows math code to compile + that otherwise wouldn't (such as math/s_fma.c) and so is valuable. + + 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 + <fenv.h> 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; }) + +#include_next <math_private.h> + +#define feraiseexcept(excepts) ({ 0; }) +#define __feraiseexcept(excepts) ({ 0; }) +#define feclearexcept(exc) ({ 0; }) + +#endif |