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author | David Holsgrove <david.holsgrove@xilinx.com> | 2012-01-10 15:38:42 +1000 |
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committer | David Holsgrove <david.holsgrove@xilinx.com> | 2013-04-18 11:00:13 +1000 |
commit | 7756ba9d6d268b893fd17e56119cea6636be903f (patch) | |
tree | ce6db2419299a4f5394f5fad6bb3bdaab67d2bf6 /ports/sysdeps/microblaze/math_private.h | |
parent | 5c5b07da032b966260489f0d51de4bac2444fdaf (diff) | |
download | glibc-7756ba9d6d268b893fd17e56119cea6636be903f.tar.gz glibc-7756ba9d6d268b893fd17e56119cea6636be903f.tar.xz glibc-7756ba9d6d268b893fd17e56119cea6636be903f.zip |
MicroBlaze Port
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Diffstat (limited to 'ports/sysdeps/microblaze/math_private.h')
-rw-r--r-- | ports/sysdeps/microblaze/math_private.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/ports/sysdeps/microblaze/math_private.h b/ports/sysdeps/microblaze/math_private.h new file mode 100644 index 0000000000..39b71722d3 --- /dev/null +++ b/ports/sysdeps/microblaze/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 definied. Only allow rounding modes implemented for + MicroBlaze. + + 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 feclearexcept(exc) ({ 0; }) + +#endif |