rt_sigframe.h

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#ifndef _ASM_PARISC_RT_SIGFRAME_H
#define _ASM_PARISC_RT_SIGFRAME_H

#define SIGRETURN_TRAMP 4
#define SIGRESTARTBLOCK_TRAMP 5 
#define TRAMP_SIZE (SIGRETURN_TRAMP + SIGRESTARTBLOCK_TRAMP)

struct rt_sigframe {
    /* XXX: Must match trampoline size in arch/parisc/kernel/signal.c 
            Secondary to that it must protect the ERESTART_RESTARTBLOCK
        trampoline we left on the stack (we were bad and didn't 
        change sp so we could run really fast.) */
    unsigned int tramp[TRAMP_SIZE];
    struct siginfo info;
    struct ucontext uc;
};

#define SIGFRAME        128
#define FUNCTIONCALLFRAME   96
#define PARISC_RT_SIGFRAME_SIZE                 \
    (((sizeof(struct rt_sigframe) + FUNCTIONCALLFRAME) + SIGFRAME) & -SIGFRAME)

#endif