mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 13:31:13 +00:00
ccc9035a67
The m68k bits/fenv.h is in sysdeps/m68k/fpu/, meaning that no-FPU ColdFire instead gets the generic (top-level) bits/fenv.h. That top-level bits/fenv.h defines no rounding mode constants. That no longer works for building glibc tests: some tests fail to build (at least with warnings) if no rounding mode macros are defined, so at least FE_TONEAREST must be defined in all cases (as various architectures without rounding mode support indeed do), while __FE_UNDEFINED must be defined in the case where not all the standard rounding modes are supported. On general principles of supporting multilib toolchains with a single set of headers shared between multilibs for a given architecture, it's also desirable for the same bits/fenv.h header to work for both FPU and no-FPU configurations. Thus, this patch moves the m68k bits/fenv.h to sysdeps/m68k/bits/fenv.h, and inserts appropriate conditionals to handle the no-FPU case. All the exception macros, and FE_NOMASK_ENV, are disabled in the no-FPU case; FE_ALL_EXCEPT is defined to 0 in that case. All rounding modes except FE_TONEAREST are disabled in that case, and __FE_UNDEFINED is defined accordingly. To avoid an unnecessary ABI change, fenv_t is defined in the no-FPU case to match the definition it would have got from the generic bits/fenv.h. This suffices to get a clean glibc and testsuite build for this configuration with build-many-glibcs.py (and keeps a clean build for the other m68k configurations); it has not been otherwise tested. * sysdeps/m68k/fpu/bits/fenv.h: Move to .... * sysdeps/m68k/bits/fenv.h: ... here. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_INEXACT): Do not define. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_DIVBYZERO): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_UNDERFLOW): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_OVERFLOW): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_INVALID): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_ALL_EXCEPT): Define to 0. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (__FE_UNDEFINED): New enum constant. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_TOWARDZERO): Do not define. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_DOWNWARD): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_UPWARD): Likewise. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (fenv_t): Define to match generic bits/fenv.h. [!__HAVE_68881__ && !__HAVE_FPU__ && !__mcffpu__] (FE_NOMASK_ENV): Do not define. |
||
|---|---|---|
| .. | ||
| 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 | ||