http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46490
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.11.16 08:22:33
CC| |ebotcazou at gcc dot
| |gnu.org
Ever Confirmed|0 |1
--- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-16
08:22:33 UTC ---
There is a known issue for FreeBSD. GNAT requires 64-bit precision on the x87
so it resets it in ada/init.c:__gnat_init_float. This runs afoul of:
/* FreeBSD sets the rounding precision of the FPU to 53 bits. Let the
compiler get the contents of <float.h> and std::numeric_limits correct. */
#undef TARGET_96_ROUND_53_LONG_DOUBLE
#define TARGET_96_ROUND_53_LONG_DOUBLE (!TARGET_64BIT)
in config/i386/freebsd.h so you'd need to force it to 0 unconditionally for
GNAT.
For the stack checking, you should try to define:
/* Static stack checking is supported by means of probes. */
#define STACK_CHECK_STATIC_BUILTIN 1
like in config/i386/freebsd.h.
