From 90ccc69f5be0b7e26c3607dac07340fe3e271509 Mon Sep 17 00:00:00 2001 From: forsyth Date: Fri, 25 Feb 2011 10:59:02 +0000 Subject: 20110225-1058 --- Linux/arm/include/emu.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Linux/arm/include/emu.h (limited to 'Linux/arm/include/emu.h') diff --git a/Linux/arm/include/emu.h b/Linux/arm/include/emu.h new file mode 100644 index 00000000..da7b786f --- /dev/null +++ b/Linux/arm/include/emu.h @@ -0,0 +1,33 @@ +/* + * 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 (16 * 1024) + +#ifndef USE_PTHREADS +static __inline Proc *getup(void) { + Proc *p; + __asm__( "mov %0, %%sp;" + : "=r" (p) + ); + return *(Proc **)((uintptr)p & ~(KSTACK - 1)); +}; +#else +extern Proc* getup(void); +#endif + +#define up (getup()) + +typedef sigjmp_buf osjmpbuf; +#define ossetjmp(buf) sigsetjmp(buf, 1) -- cgit v1.2.3