ref: b548687a8ed1d0a159c9d3f3f921d93bbb56908e
dir: /DragonFly/386/include/emu.h/
/* * system- and machine-specific declarations for emu: * floating-point save and restore, signal handling primitive, and * implementation of the current-process variable `up'. */ /* * This structure must agree with FPsave and FPrestore asm routines */ typedef struct FPU FPU; struct FPU { uchar env[28]; }; #define KSTACK (32 * 1024) static __inline Proc *getup(void) { Proc *p; __asm__( "movl %%esp, %%eax\n\t" : "=a" (p) ); return *(Proc **)((unsigned long)p & ~(KSTACK - 1)); }; #define up (getup()) typedef sigjmp_buf osjmpbuf; #define ossetjmp(buf) sigsetjmp(buf, 1)