/*
Copyright (c) 1993 Xerox Corporation.  All rights reserved.
*/
/*
$Id$

$Date$
 */


#ifndef	__PCR_setjmp_h
#define __PCR_setjmp_h 1

#include <config/PCR_Arch.h>

/*
    This is one of the few PCR posix headers than can't just include
      the corresponding host header, but the setjmp implementation
      sometimes must be different inside threads.
    Some compilers (notably old gcc) recognize the identifiers setjmp
      and longjmp and process them specially, so the usual PCR renaming
      is not viable.  This means the PCR implementation itself
      is unable to use setjmp/longjmp.
*/

#if defined(PCR_Arch_SPARC)

#   define PCR_setjmp_JBLEN	2
#   define PCR_setjmp_SIGJBLEN	(PCR_setjmp_JBLEN+2)

#   define PCR_setjmp_jmp_buf_spIndex		0
#   define PCR_setjmp_jmp_buf_pcIndex		1
#   define PCR_setjmp_sigjmp_buf_maskSavedIndex	2
#   define PCR_setjmp_sigjmp_buf_maskIndex	3

#elif defined(PCR_Arch_MIPS)

#   define PCR_setjmp_JBLEN	28
#   define PCR_setjmp_SIGJBLEN	PCR_setjmp_JBLEN

#   define PCR_setjmp_jmp_buf_spIndex		2
#   define PCR_setjmp_jmp_buf_pcIndex		3
#   define PCR_setjmp_sigjmp_buf_maskSavedIndex	0
#   define PCR_setjmp_sigjmp_buf_maskIndex	1

#   define PCR_setjmp_sigjmp_buf_v0Index	4
#   define PCR_setjmp_sigjmp_buf_s0Index	5
#   define PCR_setjmp_sigjmp_buf_s1Index	6
#   define PCR_setjmp_sigjmp_buf_s2Index	7
#   define PCR_setjmp_sigjmp_buf_s3Index	8
#   define PCR_setjmp_sigjmp_buf_s4Index	9
#   define PCR_setjmp_sigjmp_buf_s5Index	10
#   define PCR_setjmp_sigjmp_buf_s6Index	11
#   define PCR_setjmp_sigjmp_buf_s7Index	12
#   define PCR_setjmp_sigjmp_buf_s8Index	13
#   define PCR_setjmp_sigjmp_buf_f20Index	14
#   define PCR_setjmp_sigjmp_buf_f21Index	15
#   define PCR_setjmp_sigjmp_buf_f22Index	16
#   define PCR_setjmp_sigjmp_buf_f23Index	17
#   define PCR_setjmp_sigjmp_buf_f24Index	18
#   define PCR_setjmp_sigjmp_buf_f25Index	19
#   define PCR_setjmp_sigjmp_buf_f26Index	20
#   define PCR_setjmp_sigjmp_buf_f27Index	21
#   define PCR_setjmp_sigjmp_buf_f28Index	22
#   define PCR_setjmp_sigjmp_buf_f29Index	23
#   define PCR_setjmp_sigjmp_buf_f30Index	24
#   define PCR_setjmp_sigjmp_buf_f31Index	25
#   define PCR_setjmp_sigjmp_buf_fpcsrIndex	26
#   define PCR_setjmp_sigjmp_buf_magicIndex	27

#elif defined(PCR_Arch_INTEL)

#   define PCR_setjmp_JBLEN	12
#   define PCR_setjmp_SIGJBLEN	(PCR_setjmp_JBLEN+2)

#else

#   error PCR_Host_arch NYI

#endif

#undef jmp_buf
#undef sigjmp_buf
#undef setjmp
#undef sigsetjmp
#undef longjmp
#undef siglongjmp


typedef long jmp_buf[PCR_setjmp_JBLEN];
#define PCR_jmp_buf jmp_buf

typedef long * jmp_buf_ptr;
#define PCR_jmp_buf_ptr jmp_buf_ptr


typedef long sigjmp_buf[PCR_setjmp_SIGJBLEN];
#define PCR_sigjmp_buf sigjmp_buf

typedef long * sigjmp_buf_ptr;
#define PCR_sigjmp_buf_ptr sigjmp_buf_ptr


extern int setjmp(jmp_buf env);
#define PCR_setjmp setjmp

extern int
PCR__sigsetjmpInit(sigjmp_buf env, int savemask);

extern int sigsetjmp(sigjmp_buf env, int savemask);
#define sigsetjmp(env,save) (\
	PCR__sigsetjmpInit((env),(save)), setjmp(env) )
#define PCR_sigsetjmp sigsetjmp


extern void
PCR__longjmpInner(PCR_jmp_buf env, int val);

extern void longjmp(PCR_jmp_buf env, int val);
#define PCR_longjmp longjmp

extern void siglongjmp(PCR_sigjmp_buf env, int val);
#define PCR_siglongjmp siglongjmp


#endif /* !__PCR_setjmp_h */

/*
$Log$
*/