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d23a4962bb
Various configurations lacking support for floating-point exceptions and rounding modes have a math_private.h that overrides certain functions and macros, internal and external, to avoid references to FE_* constants that are undefined in those configurations. For example, there are unconditional feraiseexcept (FE_INVALID) calls in generic libm code, and these macro definitions duly define feraiseexcept to ignore its argument to avoid an error from FE_INVALID being undefined. In fact it is easy to tell in an architecture-independent way whether this is needed, by testing whether FE_ALL_EXCEPT == 0. Thus, this patch puts such a test, and feraiseexcept and __feraiseexcept macros, in the generic math_private.h, so reducing the duplication between architecture versions of this header. The feclearexcept macro present in several versions of this header, and fetestexcept in the tile version, are not needed; they would have been needed before there were proper soft-fp fma implementations (when generic versions, that depend on FE_TOWARDZERO and FE_INEXACT, were being used for configurations not supporting those features), but aren't needed any more, and so are removed. The tile version of this header has several inline functions for fenv.h functions to optimize calls to them away in such configurations where they do nothing useful, and all these header versions also have definitions of some of the libc_fe* internal macros. I intend to make those generic in subsequent patches. Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by this patch. * sysdeps/generic/math_private.h [FE_ALL_EXCEPT == 0] (feraiseexcept): New macro. [FE_ALL_EXCEPT == 0] (__feraiseexcept): Likewise. * sysdeps/m68k/coldfire/nofpu/math_private.h (feraiseexcept): Remove macro. (__feraiseexcept): Likewise. (feclearexcept): Likewise. * sysdeps/microblaze/math_private.h (feraiseexcept): Likewise. (__feraiseexcept): Likewise. (feclearexcept): Likewise. * sysdeps/nios2/math_private.h (feraiseexcept): Likewise. (__feraiseexcept): Likewise. (feclearexcept): Likewise. * sysdeps/tile/math_private.h (feraiseexcept): Likewise. (__feraiseexcept): Likewise. (feclearexcept): Likewise. (fetestexcept): Likewise. |
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| .. | ||
| bits | ||
| coldfire | ||
| fpu | ||
| m680x0 | ||
| nptl | ||
| sys | ||
| __longjmp.c | ||
| abort-instr.h | ||
| asm-syntax.h | ||
| backtrace.c | ||
| bsd-_setjmp.c | ||
| bsd-setjmp.c | ||
| crti.S | ||
| crtn.S | ||
| dl-machine.h | ||
| dl-tls.h | ||
| dl-trampoline.S | ||
| ffs.c | ||
| fpu_control.h | ||
| gccframe.h | ||
| Implies | ||
| jmpbuf-unwind.h | ||
| ldsodefs.h | ||
| libc-tls.c | ||
| Makefile | ||
| memchr.S | ||
| memcopy.h | ||
| memusage.h | ||
| preconfigure | ||
| rawmemchr.S | ||
| setjmp.c | ||
| shlib-versions | ||
| sotruss-lib.c | ||
| stackinfo.h | ||
| start.S | ||
| strchr.S | ||
| strchrnul.S | ||
| symbol-hacks.h | ||
| sysdep.h | ||
| tls-macros.h | ||
| tst-audit.h | ||
| Versions | ||
| wcpcpy_chk.c | ||
| wcpcpy.c | ||