3 * Copyright (c) 1987-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
15 * This file is being used for x2p stuff.
16 * Above symbol is defined via -D in 'x2p/Makefile.SH'
17 * Decouple x2p stuff from some of perls more extreme eccentricities.
23 #endif /* PERL_FOR_X2P */
26 * STMT_START { statements; } STMT_END;
27 * can be used as a single statement, as in
28 * if (x) STMT_START { ... } STMT_END; else ...
30 * Trying to select a version that gives no warnings...
32 #if !(defined(STMT_START) && defined(STMT_END))
33 # if defined(__GNUC__) && !defined(__STRICT_ANSI__)
34 # define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
37 /* Now which other defined()s do we need here ??? */
38 # if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
39 # define STMT_START if (1)
40 # define STMT_END else (void)0
42 # define STMT_START do
43 # define STMT_END while (0)
54 # define BYTEORDER 0x1234
57 /* Overall memory policy? */
63 * The following contortions are brought to you on behalf of all the
64 * standards, semi-standards, de facto standards, not-so-de-facto standards
65 * of the world, as well as all the other botches anyone ever thought of.
66 * The basic theory is that if we work hard enough here, the rest of the
67 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
70 /* define this once if either system, instead of cluttering up the src */
71 #if defined(MSDOS) || defined(atarist)
75 #if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
79 #if defined(HASVOLATILE) || defined(STANDARD_C)
81 # define VOL // to temporarily suppress warnings
89 #define TAINT_IF(c) (tainted |= (c))
90 #define TAINT_NOT (tainted = 0)
91 #define TAINT_PROPER(s) if (tainting) taint_proper(no_security, s)
92 #define TAINT_ENV() if (tainting) taint_env()
96 # define BSD_GETPGRP(pid) getpgrp((pid))
99 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
103 # define BSD_GETPGRP(pid) getpgrp2((pid))
109 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
116 #ifndef _TYPES_ /* If types.h defines this it's easy. */
117 # ifndef major /* Does everyone's types.h define this? */
118 # include <sys/types.h>
132 # include <varargs.h>
138 #ifdef USE_NEXT_CTYPE
140 #if NX_CURRENT_COMPILER_RELEASE >= 400
141 #include <objc/NXCType.h>
142 #else /* NX_CURRENT_COMPILER_RELEASE < 400 */
143 #include <appkit/NXCType.h>
144 #endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
146 #else /* !USE_NEXT_CTYPE */
148 #endif /* USE_NEXT_CTYPE */
154 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
161 # ifdef PARAM_NEEDS_TYPES
162 # include <sys/types.h>
164 # include <sys/param.h>
168 /* Use all the "standard" definitions? */
169 #if defined(STANDARD_C) && defined(I_STDLIB)
171 #endif /* STANDARD_C */
173 /* Maybe this comes after <stdlib.h> so we don't try to change
174 the standard library prototypes?. We'll use our own in
175 proto.h instead. I guess. The patch had no explanation.
179 # define malloc Perl_malloc
180 # define realloc Perl_realloc
181 # define free Perl_free
182 # define calloc Perl_calloc
184 # define safemalloc malloc
185 # define saferealloc realloc
186 # define safefree free
187 # define safecalloc calloc
190 #define MEM_SIZE Size_t
192 #if defined(I_STRING) || defined(__cplusplus)
195 # include <strings.h>
198 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
200 #define strrchr rindex
203 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
212 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
214 extern char * memcpy _((char*, char*, int));
220 # define memcpy(d,s,l) bcopy(s,d,l)
222 # define memcpy(d,s,l) my_bcopy(s,d,l)
225 #endif /* HAS_MEMCPY */
228 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
230 extern char *memset _((char*, int, int));
233 # define memzero(d,l) memset(d,0,l)
237 # define memzero(d,l) bzero(d,l)
239 # define memzero(d,l) my_bzero(d,l)
242 #endif /* HAS_MEMSET */
245 # if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
247 extern int memcmp _((char*, char*, int));
252 # define memcmp my_memcmp
254 #endif /* HAS_MEMCMP */
256 #if !defined(HAS_MEMMOVE) && !defined(memmove)
257 # if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
258 # define memmove(d,s,l) bcopy(s,d,l)
260 # if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
261 # define memmove(d,s,l) memcpy(d,s,l)
263 # define memmove(d,s,l) my_bcopy(s,d,l)
269 # include <netinet/in.h>
273 #include <sys/stat.h>
276 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
277 like UTekV) are broken, sometimes giving false positives. Undefine
278 them here and let the code below set them to proper values.
280 The ghs macro stands for GreenHills Software C-1.8.5 which
281 is the C compiler for sysV88 and the various derivatives.
282 This header file bug is corrected in gcc-2.5.8 and later versions.
283 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
285 #if defined(uts) || (defined(m88k) && defined(ghs))
299 # ifdef I_SYS_TIME_KERNEL
302 # include <sys/time.h>
303 # ifdef I_SYS_TIME_KERNEL
309 # if defined(HAS_TIMES) && defined(I_SYS_TIMES)
310 # include <sys/times.h>
314 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
320 # define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
322 #endif /* !HAS_MKFIFO */
327 # include <net/errno.h>
331 # define FIXSTATUS(sts) (U_L((sts) & 0xffff))
332 # define SHIFTSTATUS(sts) ((sts) >> 8)
333 # define SETERRNO(errcode,vmserrcode) errno = (errcode)
335 # define FIXSTATUS(sts) (U_L(sts))
336 # define SHIFTSTATUS(sts) (sts)
337 # define SETERRNO(errcode,vmserrcode) STMT_START {set_errno(errcode); set_vaxc_errno(vmserrcode);} STMT_END
342 extern int errno; /* ANSI allows errno to be an lvalue expr */
348 char *strerror _((int,...));
350 char *strerror _((int));
353 # define Strerror strerror
356 # ifdef HAS_SYS_ERRLIST
358 extern char *sys_errlist[];
360 # define Strerror(e) \
361 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
368 # include <sys/ioctl.h>
372 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
373 # ifdef HAS_SOCKETPAIR
374 # undef HAS_SOCKETPAIR
389 /* Configure already sets Direntry_t */
390 #if defined(I_DIRENT)
392 # if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
393 # include <sys/dir.h>
397 # include <sys/ndir.h>
401 # include <ndir.h> /* may be wrong in the future */
403 # include <sys/dir.h>
410 /* work around botch in SunOS 4.0.1 and 4.0.2 */
412 # define fputs(sv,fp) fprintf(fp,"%s",sv)
417 * The following gobbledygook brought to you on behalf of __STDC__.
418 * (I could just use #ifndef __STDC__, but this is more bulletproof
419 * in the face of half-implementations.)
424 # define S_IFMT _S_IFMT
426 # define S_IFMT 0170000
431 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
435 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
440 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
442 # define S_ISBLK(m) (0)
447 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
452 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
454 # define S_ISFIFO(m) (0)
460 # define S_ISLNK(m) _S_ISLNK(m)
463 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
466 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
468 # define S_ISLNK(m) (0)
476 # define S_ISSOCK(m) _S_ISSOCK(m)
479 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
482 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
484 # define S_ISSOCK(m) (0)
492 # define S_IRUSR S_IREAD
493 # define S_IWUSR S_IWRITE
494 # define S_IXUSR S_IEXEC
496 # define S_IRUSR 0400
497 # define S_IWUSR 0200
498 # define S_IXUSR 0100
500 # define S_IRGRP (S_IRUSR>>3)
501 # define S_IWGRP (S_IWUSR>>3)
502 # define S_IXGRP (S_IXUSR>>3)
503 # define S_IROTH (S_IRUSR>>6)
504 # define S_IWOTH (S_IWUSR>>6)
505 # define S_IXOTH (S_IXUSR>>6)
509 # define S_ISUID 04000
513 # define S_ISGID 02000
520 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
521 # define SLOPPYDIVIDE
524 #if defined(cray) || defined(convex) || BYTEORDER > 0xffff
537 # define Quad_t long long
543 typedef unsigned Quad_t UV;
546 typedef unsigned long UV;
549 /* Previously these definitions used hardcoded figures.
550 * It is hoped these formula are more portable, although
551 * no data one way or another is presently known to me.
552 * The "PERL_" names are used because these calculated constants
553 * do not meet the ANSI requirements for LONG_MAX, etc., which
554 * need to be constants acceptable to #if - kja
555 * define PERL_LONG_MAX 2147483647L
556 * define PERL_LONG_MIN (-LONG_MAX - 1)
557 * define PERL ULONG_MAX 4294967295L
560 #ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
569 #define PERL_LONG_MAX LONG_MAX
571 # ifdef MAXLONG /* Often used in <values.h> */
572 # define PERL_LONG_MAX MAXLONG
574 # define PERL_LONG_MAX ((long) ((~(unsigned long)0) >> 1))
579 #define PERL_LONG_MIN LONG_MIN
582 # define PERL_LONG_MIN MINLONG
584 # define PERL_LONG_MIN (-LONG_MAX - ((3 & -1) == 3))
589 #define PERL_ULONG_MAX ULONG_MAX
592 # define PERL_ULONG_MAX MAXULONG
594 # define PERL_ULONG_MAX (~(unsigned long)0)
599 #define PERL_ULONG_MIN ULONG_MIN
601 # define ULONG_MIN 0L
604 typedef MEM_SIZE STRLEN;
606 typedef struct op OP;
607 typedef struct cop COP;
608 typedef struct unop UNOP;
609 typedef struct binop BINOP;
610 typedef struct listop LISTOP;
611 typedef struct logop LOGOP;
612 typedef struct condop CONDOP;
613 typedef struct pmop PMOP;
614 typedef struct svop SVOP;
615 typedef struct gvop GVOP;
616 typedef struct pvop PVOP;
617 typedef struct loop LOOP;
619 typedef struct Outrec Outrec;
620 typedef struct interpreter PerlInterpreter;
621 typedef struct ff FF;
622 typedef struct sv SV;
623 typedef struct av AV;
624 typedef struct hv HV;
625 typedef struct cv CV;
626 typedef struct regexp REGEXP;
627 typedef struct gp GP;
628 typedef struct gv GV;
629 typedef struct io IO;
630 typedef struct context CONTEXT;
631 typedef struct block BLOCK;
633 typedef struct magic MAGIC;
634 typedef struct xrv XRV;
635 typedef struct xpv XPV;
636 typedef struct xpviv XPVIV;
637 typedef struct xpvnv XPVNV;
638 typedef struct xpvmg XPVMG;
639 typedef struct xpvlv XPVLV;
640 typedef struct xpvav XPVAV;
641 typedef struct xpvhv XPVHV;
642 typedef struct xpvgv XPVGV;
643 typedef struct xpvcv XPVCV;
644 typedef struct xpvbm XPVBM;
645 typedef struct xpvfm XPVFM;
646 typedef struct xpvio XPVIO;
647 typedef struct mgvtbl MGVTBL;
648 typedef union any ANY;
652 typedef I32 (*filter_t) _((int, SV *, int));
653 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
654 #define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
655 #define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
668 # include "./plan9/plan9ish.h"
670 # include "unixish.h"
675 /* Some unistd.h's give a prototype for pause() even though
676 HAS_PAUSE ends up undefined. This causes the #define
677 below to be rejected by the compmiler. Sigh.
682 #define Pause() sleep((32767<<16)+32767)
687 /* on BSDish systes we're safe */
688 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
690 /* otherwise guess at what's safe */
691 # define IOCPARM_LEN(x) 256
700 void (*any_dptr) _((void*));
717 /* work around some libPW problems */
722 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
726 #if defined(htonl) && !defined(HAS_HTONL)
729 #if defined(htons) && !defined(HAS_HTONS)
732 #if defined(ntohl) && !defined(HAS_NTOHL)
735 #if defined(ntohs) && !defined(HAS_NTOHS)
739 #if (BYTEORDER & 0xffff) != 0x4321
745 #define htons my_swap
746 #define htonl my_htonl
747 #define ntohs my_swap
748 #define ntohl my_ntohl
751 #if (BYTEORDER & 0xffff) == 0x4321
760 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
763 #if BYTEORDER != 0x1234
768 # if BYTEORDER == 0x4321
769 # define vtohl(x) ((((x)&0xFF)<<24) \
771 +(((x)&0x0000FF00)<<8) \
772 +(((x)&0x00FF0000)>>8) )
773 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
774 # define htovl(x) vtohl(x)
775 # define htovs(x) vtohs(x)
777 /* otherwise default to functions in util.c */
781 #define U_S(what) ((U16)(what))
782 #define U_I(what) ((unsigned int)(what))
783 #define U_L(what) ((U32)(what))
785 U32 cast_ulong _((double));
786 #define U_S(what) ((U16)cast_ulong((double)(what)))
787 #define U_I(what) ((unsigned int)cast_ulong((double)(what)))
788 #define U_L(what) (cast_ulong((double)(what)))
792 #define I_32(what) ((I32)(what))
793 #define I_V(what) ((IV)(what))
794 #define U_V(what) ((UV)(what))
796 I32 cast_i32 _((double));
797 #define I_32(what) (cast_i32((double)(what)))
798 IV cast_iv _((double));
799 #define I_V(what) (cast_iv((double)(what)))
800 UV cast_uv _((double));
801 #define U_V(what) (cast_uv((double)(what)))
815 # define TMPPATH "/tmp/perl-eXXXXXX"
819 Uid_t getuid _((void));
820 Uid_t geteuid _((void));
821 Gid_t getgid _((void));
822 Gid_t getegid _((void));
826 #ifndef Perl_debug_log
827 #define Perl_debug_log PerlIO_stderr()
831 #define DEBUG(a) if (debug) a
832 #define DEBUG_p(a) if (debug & 1) a
833 #define DEBUG_s(a) if (debug & 2) a
834 #define DEBUG_l(a) if (debug & 4) a
835 #define DEBUG_t(a) if (debug & 8) a
836 #define DEBUG_o(a) if (debug & 16) a
837 #define DEBUG_c(a) if (debug & 32) a
838 #define DEBUG_P(a) if (debug & 64) a
839 #define DEBUG_m(a) if (curinterp && debug & 128) a
840 #define DEBUG_f(a) if (debug & 256) a
841 #define DEBUG_r(a) if (debug & 512) a
842 #define DEBUG_x(a) if (debug & 1024) a
843 #define DEBUG_u(a) if (debug & 2048) a
844 #define DEBUG_L(a) if (debug & 4096) a
845 #define DEBUG_H(a) if (debug & 8192) a
846 #define DEBUG_X(a) if (debug & 16384) a
847 #define DEBUG_D(a) if (debug & 32768) a
868 #define YYMAXDEPTH 300
870 #define assert(what) DEB( { \
872 croak("Assertion failed: file \"%s\", line %d", \
873 __FILE__, __LINE__); \
878 I32 (*uf_val)_((IV, SV*));
879 I32 (*uf_set)_((IV, SV*));
883 /* Fix these up for __STDC__ */
885 char *mktemp _((char*));
886 double atof _((const char*));
890 /* All of these are in stdlib.h or time.h for ANSI C */
892 struct tm *gmtime(), *localtime();
893 char *strchr(), *strrchr();
894 char *strcpy(), *strcat();
895 #endif /* ! STANDARD_C */
904 double exp _((double));
905 double log _((double));
906 double sqrt _((double));
907 double modf _((double,double*));
908 double sin _((double));
909 double cos _((double));
910 double atan2 _((double,double));
911 double pow _((double,double));
918 #ifdef __NeXT__ /* or whatever catches all NeXTs */
919 char *crypt (); /* Maybe more hosts will need the unprototyped version */
921 char *crypt _((const char*, const char*));
923 char *getenv _((const char*));
924 Off_t lseek _((int,Off_t,int));
925 char *getlogin _((void));
928 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
930 I32 unlnk _((char*));
932 #define UNLINK unlink
936 # ifdef HAS_SETRESUID
937 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
938 # define HAS_SETREUID
942 # ifdef HAS_SETRESGID
943 # define setregid(r,e) setresgid(r,e,(Gid_t)-1)
944 # define HAS_SETREGID
953 # ifndef DEBUGGING_MSTATS
954 # define DEBUGGING_MSTATS
962 # define PAD_SV(po) pad_sv(po)
964 # define PAD_SV(po) curpad[po]
972 EXT PerlInterpreter * curinterp; /* currently running interpreter */
973 /* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
974 #if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
975 extern char ** environ; /* environment variables supplied via exec */
977 # if defined(NeXT) && defined(__DYNAMIC__)
979 # include <mach-o/dyld.h>
980 EXT char *** environ_pointer;
981 # define environ (*environ_pointer)
983 #endif /* environ processing */
985 EXT int uid; /* current real user id */
986 EXT int euid; /* current effective user id */
987 EXT int gid; /* current real group id */
988 EXT int egid; /* current effective group id */
989 EXT bool nomemok; /* let malloc context handle nomem */
990 EXT U32 an; /* malloc sequence number */
991 EXT U32 cop_seqmax; /* statement sequence number */
992 EXT U16 op_seqmax; /* op sequence number */
993 EXT U32 evalseq; /* eval sequence number */
994 EXT U32 sub_generation; /* inc to force methods to be looked up again */
995 EXT char ** origenviron;
997 EXT U32 * profiledata;
998 EXT int maxo INIT(MAXO);/* Number of ops */
999 EXT char * osname; /* operating system */
1001 EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1002 EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
1003 EXT double * xnv_root; /* free xnv list--shared by interpreters */
1004 EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1005 EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
1006 EXT HE * he_root; /* free he list--shared by interpreters */
1007 EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1008 EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
1010 /* Stack for currently executing thread--context switch must handle this. */
1011 EXT SV ** stack_base; /* stack->array_ary */
1012 EXT SV ** stack_sp; /* stack pointer now */
1013 EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1015 /* likewise for these */
1017 EXT OP * op; /* current op--oughta be in a global register */
1019 EXT I32 * scopestack; /* blocks we've entered */
1020 EXT I32 scopestack_ix;
1021 EXT I32 scopestack_max;
1023 EXT ANY* savestack; /* to save non-local values on */
1024 EXT I32 savestack_ix;
1025 EXT I32 savestack_max;
1027 EXT OP ** retstack; /* returns we've pushed */
1028 EXT I32 retstack_ix;
1029 EXT I32 retstack_max;
1031 EXT I32 * markstack; /* stackmarks we're remembering */
1032 EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1033 EXT I32 * markstack_max; /* stackmarks we're remembering */
1041 EXT char buf[2048]; /* should be longer than PATH_MAX */
1042 EXT char tokenbuf[256];
1043 EXT struct stat statbuf;
1045 EXT struct tms timesbuf;
1047 EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
1049 /* for tmp use in stupid debuggers */
1054 /* handy constants */
1055 EXT char * Yes INIT("1");
1056 EXT char * No INIT("");
1057 EXT char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1058 EXT char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1059 EXT char * vert INIT("|");
1061 EXT char warn_uninit[]
1062 INIT("Use of uninitialized value");
1063 EXT char warn_nosemi[]
1064 INIT("Semicolon seems to be missing");
1065 EXT char warn_reserved[]
1066 INIT("Unquoted string \"%s\" may clash with future reserved word");
1068 INIT("Unsuccessful %s on filename containing newline");
1069 EXT char no_wrongref[]
1070 INIT("Can't use %s ref as %s ref");
1071 EXT char no_symref[]
1072 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
1074 INIT("Can't use an undefined value as %s reference");
1076 INIT("Modification of non-creatable array value attempted, subscript %d");
1078 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
1079 EXT char no_modify[]
1080 INIT("Modification of a read-only value attempted");
1082 INIT("Out of memory!\n");
1083 EXT char no_security[]
1084 INIT("Insecure dependency in %s%s");
1085 EXT char no_sock_func[]
1086 INIT("Unsupported socket function \"%s\" called");
1087 EXT char no_dir_func[]
1088 INIT("Unsupported directory function \"%s\" called");
1090 INIT("The %s function is unimplemented");
1091 EXT char no_myglob[]
1092 INIT("\"my\" variable %s can't be in a package");
1098 EXT char * cshname INIT(CSH);
1103 EXT char *sig_name[] = { SIG_NAME };
1104 EXT int sig_num[] = { SIG_NUM };
1105 EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1106 EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
1108 EXT char *sig_name[];
1110 EXT SV * psig_ptr[];
1111 EXT SV * psig_name[];
1115 EXT unsigned char fold[] = { /* fast case folding table */
1116 0, 1, 2, 3, 4, 5, 6, 7,
1117 8, 9, 10, 11, 12, 13, 14, 15,
1118 16, 17, 18, 19, 20, 21, 22, 23,
1119 24, 25, 26, 27, 28, 29, 30, 31,
1120 32, 33, 34, 35, 36, 37, 38, 39,
1121 40, 41, 42, 43, 44, 45, 46, 47,
1122 48, 49, 50, 51, 52, 53, 54, 55,
1123 56, 57, 58, 59, 60, 61, 62, 63,
1124 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1125 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1126 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1127 'x', 'y', 'z', 91, 92, 93, 94, 95,
1128 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1129 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1130 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1131 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1132 128, 129, 130, 131, 132, 133, 134, 135,
1133 136, 137, 138, 139, 140, 141, 142, 143,
1134 144, 145, 146, 147, 148, 149, 150, 151,
1135 152, 153, 154, 155, 156, 157, 158, 159,
1136 160, 161, 162, 163, 164, 165, 166, 167,
1137 168, 169, 170, 171, 172, 173, 174, 175,
1138 176, 177, 178, 179, 180, 181, 182, 183,
1139 184, 185, 186, 187, 188, 189, 190, 191,
1140 192, 193, 194, 195, 196, 197, 198, 199,
1141 200, 201, 202, 203, 204, 205, 206, 207,
1142 208, 209, 210, 211, 212, 213, 214, 215,
1143 216, 217, 218, 219, 220, 221, 222, 223,
1144 224, 225, 226, 227, 228, 229, 230, 231,
1145 232, 233, 234, 235, 236, 237, 238, 239,
1146 240, 241, 242, 243, 244, 245, 246, 247,
1147 248, 249, 250, 251, 252, 253, 254, 255
1150 EXT unsigned char fold[];
1154 EXT unsigned char freq[] = { /* letter frequencies for mixed English/C */
1155 1, 2, 84, 151, 154, 155, 156, 157,
1156 165, 246, 250, 3, 158, 7, 18, 29,
1157 40, 51, 62, 73, 85, 96, 107, 118,
1158 129, 140, 147, 148, 149, 150, 152, 153,
1159 255, 182, 224, 205, 174, 176, 180, 217,
1160 233, 232, 236, 187, 235, 228, 234, 226,
1161 222, 219, 211, 195, 188, 193, 185, 184,
1162 191, 183, 201, 229, 181, 220, 194, 162,
1163 163, 208, 186, 202, 200, 218, 198, 179,
1164 178, 214, 166, 170, 207, 199, 209, 206,
1165 204, 160, 212, 216, 215, 192, 175, 173,
1166 243, 172, 161, 190, 203, 189, 164, 230,
1167 167, 248, 227, 244, 242, 255, 241, 231,
1168 240, 253, 169, 210, 245, 237, 249, 247,
1169 239, 168, 252, 251, 254, 238, 223, 221,
1170 213, 225, 177, 197, 171, 196, 159, 4,
1171 5, 6, 8, 9, 10, 11, 12, 13,
1172 14, 15, 16, 17, 19, 20, 21, 22,
1173 23, 24, 25, 26, 27, 28, 30, 31,
1174 32, 33, 34, 35, 36, 37, 38, 39,
1175 41, 42, 43, 44, 45, 46, 47, 48,
1176 49, 50, 52, 53, 54, 55, 56, 57,
1177 58, 59, 60, 61, 63, 64, 65, 66,
1178 67, 68, 69, 70, 71, 72, 74, 75,
1179 76, 77, 78, 79, 80, 81, 82, 83,
1180 86, 87, 88, 89, 90, 91, 92, 93,
1181 94, 95, 97, 98, 99, 100, 101, 102,
1182 103, 104, 105, 106, 108, 109, 110, 111,
1183 112, 113, 114, 115, 116, 117, 119, 120,
1184 121, 122, 123, 124, 125, 126, 127, 128,
1185 130, 131, 132, 133, 134, 135, 136, 137,
1186 138, 139, 141, 142, 143, 144, 145, 146
1189 EXT unsigned char freq[];
1194 EXT char* block_type[] = {
1203 EXT char* block_type[];
1207 /*****************************************************************************/
1208 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
1209 /*****************************************************************************/
1210 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
1223 EXT U32 lex_state; /* next token is determined */
1224 EXT U32 lex_defer; /* state after determined token */
1225 EXT expectation lex_expect; /* expect after determined token */
1226 EXT I32 lex_brackets; /* bracket count */
1227 EXT I32 lex_formbrack; /* bracket count at outer format level */
1228 EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1229 EXT I32 lex_casemods; /* casemod count */
1230 EXT I32 lex_dojoin; /* doing an array interpolation */
1231 EXT I32 lex_starts; /* how many interps done on level */
1232 EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1233 EXT SV * lex_repl; /* runtime replacement from s/// */
1234 EXT OP * lex_op; /* extra info to pass back on op */
1235 EXT OP * lex_inpat; /* in pattern $) and $| are special */
1236 EXT I32 lex_inwhat; /* what kind of quoting are we in */
1237 EXT char * lex_brackstack; /* what kind of brackets to pop */
1238 EXT char * lex_casestack; /* what kind of case mods in effect */
1240 /* What we know when we're in LEX_KNOWNEXT state. */
1241 EXT YYSTYPE nextval[5]; /* value of next token, if any */
1242 EXT I32 nexttype[5]; /* type of next token */
1245 EXT PerlIO * VOL rsfp INIT(Nullfp);
1248 EXT char * oldbufptr;
1249 EXT char * oldoldbufptr;
1251 EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
1252 EXT AV * rsfp_filters;
1254 EXT I32 multi_start; /* 1st line of multi-line string */
1255 EXT I32 multi_end; /* last line of multi-line string */
1256 EXT I32 multi_open; /* delimiter of said string */
1257 EXT I32 multi_close; /* delimiter of said string */
1260 EXT I32 error_count; /* how many errors so far, max 10 */
1261 EXT I32 subline; /* line this subroutine began on */
1262 EXT SV * subname; /* name of current subroutine */
1264 EXT CV * compcv; /* currently compiling subroutine */
1265 EXT AV * comppad; /* storage for lexically scoped temporaries */
1266 EXT AV * comppad_name; /* variable names for "my" variables */
1267 EXT I32 comppad_name_fill;/* last "introduced" variable offset */
1268 EXT I32 comppad_name_floor;/* start of vars in innermost block */
1269 EXT I32 min_intro_pending;/* start of vars to introduce */
1270 EXT I32 max_intro_pending;/* end of vars to introduce */
1271 EXT I32 padix; /* max used index in current "register" pad */
1272 EXT I32 padix_floor; /* how low may inner block reset padix */
1273 EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
1276 EXT I32 thisexpr; /* name id for nothing_in_common() */
1277 EXT char * last_uni; /* position of last named-unary operator */
1278 EXT char * last_lop; /* position of last list operator */
1279 EXT OPCODE last_lop_op; /* last list operator */
1280 EXT bool in_my; /* we're compiling a "my" declaration */
1282 EXT I32 cryptseen; /* has fast crypt() been initialized? */
1285 EXT U32 hints; /* various compilation flags */
1287 /* Note: the lowest 8 bits are reserved for
1288 stuffing into op->op_private */
1289 #define HINT_INTEGER 0x00000001
1290 #define HINT_STRICT_REFS 0x00000002
1292 #define HINT_BLOCK_SCOPE 0x00000100
1293 #define HINT_STRICT_SUBS 0x00000200
1294 #define HINT_STRICT_VARS 0x00000400
1295 #define HINT_STRICT_UNTIE 0x00000800
1297 /**************************************************************************/
1298 /* This regexp stuff is global since it always happens within 1 expr eval */
1299 /**************************************************************************/
1301 EXT char * regprecomp; /* uncompiled string. */
1302 EXT char * regparse; /* Input-scan pointer. */
1303 EXT char * regxend; /* End of input for compile */
1304 EXT I32 regnpar; /* () count. */
1305 EXT char * regcode; /* Code-emit pointer; ®dummy = don't. */
1306 EXT I32 regsize; /* Code size. */
1307 EXT I32 regnaughty; /* How bad is this pattern? */
1308 EXT I32 regsawback; /* Did we see \1, ...? */
1310 EXT char * reginput; /* String-input pointer. */
1311 EXT char * regbol; /* Beginning of input, for ^ check. */
1312 EXT char * regeol; /* End of input, for $ check. */
1313 EXT char ** regstartp; /* Pointer to startp array. */
1314 EXT char ** regendp; /* Ditto for endp. */
1315 EXT U32 * reglastparen; /* Similarly for lastparen. */
1316 EXT char * regtill; /* How far we are required to go. */
1317 EXT U16 regflags; /* are we folding, multilining? */
1318 EXT char regprev; /* char before regbol, \n if none */
1320 EXT bool do_undump; /* -u or dump seen? */
1323 /***********************************************/
1324 /* Global only to current interpreter instance */
1325 /***********************************************/
1330 struct interpreter {
1333 #define IINIT(x) INIT(x)
1336 /* pseudo environmental stuff */
1338 IEXT char ** Iorigargv;
1342 IEXT char * Iorigfilename;
1344 IEXT SV * Iwarnhook;
1345 IEXT SV * Iparsehook;
1347 /* Various states of an input record separator SV (rs, nrs) */
1348 #define RsSNARF(sv) (! SvOK(sv))
1349 #define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1350 #define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1355 IEXT char Ipatchlevel[10];
1356 IEXT char ** Ilocalpatches;
1358 IEXT char * Isplitstr IINIT(" ");
1359 IEXT bool Ipreprocess;
1365 IEXT bool Idoswitches;
1367 IEXT bool Idoextract;
1368 IEXT bool Isawampersand; /* must save all match strings */
1369 IEXT bool Isawstudy; /* do fbm_instr on all strings */
1370 IEXT bool Isawi; /* study must assume case insensitive */
1373 IEXT char * Iinplace;
1374 IEXT char * Ie_tmpname;
1375 IEXT PerlIO * Ie_fp;
1377 /* This value may be raised by extensions for testing purposes */
1378 IEXT int Iperl_destruct_level; /* 0=none, 1=full, 2=full with checks */
1380 /* magical thingies */
1381 IEXT Time_t Ibasetime; /* $^T */
1382 IEXT SV * Iformfeed; /* $^L */
1383 IEXT char * Ichopset IINIT(" \n-"); /* $: */
1384 IEXT SV * Irs; /* $/ */
1385 IEXT char * Iofs; /* $, */
1386 IEXT STRLEN Iofslen;
1387 IEXT char * Iors; /* $\ */
1388 IEXT STRLEN Iorslen;
1389 IEXT char * Iofmt; /* $# */
1390 IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
1391 IEXT int Imultiline; /* $*--do strings hold >1 line? */
1392 IEXT U32 Istatusvalue; /* $? */
1394 IEXT struct stat Istatcache; /* _ */
1396 IEXT SV * Istatname IINIT(Nullsv);
1398 /* shortcuts to various I/O objects */
1400 IEXT GV * Ilast_in_gv;
1403 IEXT GV * Idefoutgv;
1404 IEXT GV * Iargvoutgv;
1406 /* shortcuts to regexp stuff */
1410 IEXT PMOP * Icurpm; /* what to do \ interps from */
1411 IEXT I32 * Iscreamfirst;
1412 IEXT I32 * Iscreamnext;
1413 IEXT I32 Imaxscream IINIT(-1);
1414 IEXT SV * Ilastscream;
1416 /* shortcuts to misc objects */
1419 /* shortcuts to debugging objects */
1423 IEXT SV * IDBsingle;
1425 IEXT SV * IDBsignal;
1426 IEXT AV * Ilineary; /* lines of script for debugger */
1427 IEXT AV * Idbargs; /* args to call listed by caller function */
1430 IEXT HV * Idefstash; /* main symbol table */
1431 IEXT HV * Icurstash; /* symbol table for current package */
1432 IEXT HV * Idebstash; /* symbol table for perldb package */
1433 IEXT SV * Icurstname; /* name of current package */
1434 IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1435 IEXT AV * Iendav; /* names of END subroutines */
1436 IEXT HV * Istrtab; /* shared string table */
1438 /* memory management */
1439 IEXT SV ** Itmps_stack;
1440 IEXT I32 Itmps_ix IINIT(-1);
1441 IEXT I32 Itmps_floor IINIT(-1);
1443 IEXT I32 Isv_count; /* how many SV* are currently allocated */
1444 IEXT I32 Isv_objcount; /* how many objects are currently allocated */
1445 IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1446 IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
1448 /* funky return mechanisms */
1449 IEXT I32 Ilastspbase;
1451 IEXT int Iforkprocess; /* so do_open |- can return proc# */
1453 /* subprocess state */
1454 IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
1455 IEXT HV * Ipidstatus; /* keep pid-to-status mappings for waitpid */
1457 /* internal state */
1458 IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1459 IEXT OP * Irestartop; /* Are we propagating an error from croak? */
1460 IEXT int Idelaymagic; /* ($<,$>) = ... */
1461 IEXT bool Idirty; /* In the middle of tearing things down? */
1462 IEXT U8 Ilocalizing; /* are we processing a local() list? */
1463 IEXT bool Itainted; /* using variables controlled by $< */
1464 IEXT bool Itainting; /* doing taint checks */
1465 IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
1469 IEXT I32 Idlmax IINIT(128);
1470 IEXT char * Idebname;
1471 IEXT char * Idebdelim;
1473 /* current interpreter roots */
1475 IEXT OP * Imain_root;
1476 IEXT OP * Imain_start;
1477 IEXT OP * Ieval_root;
1478 IEXT OP * Ieval_start;
1480 /* runtime control stuff */
1481 IEXT COP * VOL Icurcop IINIT(&compiling);
1482 IEXT COP * Icurcopdb IINIT(NULL);
1483 IEXT line_t Icopline IINIT(NOLINE);
1484 IEXT CONTEXT * Icxstack;
1485 IEXT I32 Icxstack_ix IINIT(-1);
1486 IEXT I32 Icxstack_max IINIT(128);
1487 IEXT Sigjmp_buf Itop_env;
1491 IEXT AV * Icurstack; /* THE STACK */
1492 IEXT AV * Imainstack; /* the stack when nothing funny is happening */
1493 IEXT SV ** Imystack_base; /* stack->array_ary */
1494 IEXT SV ** Imystack_sp; /* stack pointer now */
1495 IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
1497 /* format accumulators */
1498 IEXT SV * Iformtarget;
1499 IEXT SV * Ibodytarget;
1500 IEXT SV * Itoptarget;
1502 /* statics moved here for shared library purposes */
1503 IEXT SV Istrchop; /* return value from chop */
1504 IEXT int Ifilemode; /* so nextargv() can preserve mode */
1505 IEXT int Ilastfd; /* what to preserve mode on */
1506 IEXT char * Ioldname; /* what to preserve mode on */
1507 IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1508 IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1509 IEXT OP * Isortcop; /* user defined sort routine */
1510 IEXT HV * Isortstash; /* which is in some package or other */
1511 IEXT GV * Ifirstgv; /* $a */
1512 IEXT GV * Isecondgv; /* $b */
1513 IEXT AV * Isortstack; /* temp stack during pp_sort() */
1514 IEXT AV * Isignalstack; /* temp stack during sighandler() */
1515 IEXT SV * Imystrk; /* temp key string for do_each() */
1516 IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
1517 IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1518 IEXT I32 Igensym; /* next symbol for getsym() to define */
1519 IEXT bool Ipreambled;
1520 IEXT AV * Ipreambleav;
1521 IEXT int Ilaststatval IINIT(-1);
1522 IEXT I32 Ilaststype IINIT(OP_STAT);
1530 struct interpreter {
1544 #define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1545 #define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1547 #define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1548 #define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1555 /* The following must follow proto.h */
1558 EXT MGVTBL vtbl_sv = {magic_get,
1562 EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1563 EXT MGVTBL vtbl_envelem = {0, magic_setenv,
1566 EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
1567 EXT MGVTBL vtbl_sigelem = {magic_getsig,
1571 EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
1573 EXT MGVTBL vtbl_packelem = {magic_getpack,
1577 EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
1579 EXT MGVTBL vtbl_isa = {0, magic_setisa,
1581 EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
1583 EXT MGVTBL vtbl_arylen = {magic_getarylen,
1586 EXT MGVTBL vtbl_glob = {magic_getglob,
1589 EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
1591 EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
1593 EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
1595 EXT MGVTBL vtbl_vec = {0, magic_setvec,
1597 EXT MGVTBL vtbl_pos = {magic_getpos,
1600 EXT MGVTBL vtbl_bm = {0, magic_setbm,
1602 EXT MGVTBL vtbl_uvar = {magic_getuvar,
1607 EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
1608 0, 0, magic_setamagic};
1609 EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
1610 0, 0, magic_setamagic};
1611 #endif /* OVERLOAD */
1615 EXT MGVTBL vtbl_env;
1616 EXT MGVTBL vtbl_envelem;
1617 EXT MGVTBL vtbl_sig;
1618 EXT MGVTBL vtbl_sigelem;
1619 EXT MGVTBL vtbl_pack;
1620 EXT MGVTBL vtbl_packelem;
1621 EXT MGVTBL vtbl_dbline;
1622 EXT MGVTBL vtbl_isa;
1623 EXT MGVTBL vtbl_isaelem;
1624 EXT MGVTBL vtbl_arylen;
1625 EXT MGVTBL vtbl_glob;
1626 EXT MGVTBL vtbl_mglob;
1627 EXT MGVTBL vtbl_taint;
1628 EXT MGVTBL vtbl_substr;
1629 EXT MGVTBL vtbl_vec;
1630 EXT MGVTBL vtbl_pos;
1632 EXT MGVTBL vtbl_uvar;
1635 EXT MGVTBL vtbl_amagic;
1636 EXT MGVTBL vtbl_amagicelem;
1637 #endif /* OVERLOAD */
1642 EXT long amagic_generation;
1644 #define NofAMmeth 29
1646 EXT char * AMG_names[NofAMmeth][2] = {
1648 {"bool", "nomethod"},
1678 EXT char * AMG_names[NofAMmeth][2];
1679 #endif /* def INITAMAGIC */
1684 CV* table[NofAMmeth*2];
1687 typedef struct am_table AMT;
1689 #define AMGfallNEVER 1
1691 #define AMGfallYES 3
1694 fallback_amg, abs_amg,
1695 bool__amg, nomethod_amg,
1696 string_amg, numer_amg,
1697 add_amg, add_ass_amg,
1698 subtr_amg, subtr_ass_amg,
1699 mult_amg, mult_ass_amg,
1700 div_amg, div_ass_amg,
1701 mod_amg, mod_ass_amg,
1702 pow_amg, pow_ass_amg,
1703 lshift_amg, lshift_ass_amg,
1704 rshift_amg, rshift_ass_amg,
1705 band_amg, band_ass_amg,
1706 bor_amg, bor_ass_amg,
1707 bxor_amg, bxor_ass_amg,
1720 repeat_amg, repeat_ass_amg,
1721 concat_amg, concat_ass_amg,
1724 #endif /* OVERLOAD */
1726 #if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
1728 * Now we have __attribute__ out of the way
1731 #define printf PerlIO_stdoutf
1734 #endif /* Include guard */