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| author | davidxu <davidxu@FreeBSD.org> | 2006-05-28 02:03:13 +0000 |
|---|---|---|
| committer | davidxu <davidxu@FreeBSD.org> | 2006-05-28 02:03:13 +0000 |
| commit | bf6b4844d33a45b13bd4ffe69857c1b47fba93b4 (patch) | |
| tree | a9d0c54100cd9435a1b34d1ae77128d74763952c /sys/i386/include/npx.h | |
| parent | fecc90c6467c0c3892b79f81ed9501a4672c8815 (diff) | |
| download | FreeBSD-src-bf6b4844d33a45b13bd4ffe69857c1b47fba93b4.zip FreeBSD-src-bf6b4844d33a45b13bd4ffe69857c1b47fba93b4.tar.gz | |
When creating a new thread, inherit floating-point environment from
current thread, this is required by POSIX pthread_create document.
Diffstat (limited to 'sys/i386/include/npx.h')
| -rw-r--r-- | sys/i386/include/npx.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/i386/include/npx.h b/sys/i386/include/npx.h index 894b06d..792f75a 100644 --- a/sys/i386/include/npx.h +++ b/sys/i386/include/npx.h @@ -138,6 +138,8 @@ union savefpu { #ifdef _KERNEL +struct thread; + #define IO_NPX 0x0F0 /* Numeric Coprocessor */ #define IO_NPXSIZE 16 /* 80387/80487 NPX registers */ @@ -155,6 +157,8 @@ void npxinit(u_short control); void npxsave(union savefpu *addr); void npxsetregs(struct thread *td, union savefpu *addr); int npxtrap(void); +void npx_fork_thread(struct thread *td, struct thread *newtd); + #endif #endif /* !_MACHINE_NPX_H_ */ |
