3 * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
4 * 2004, 2005, 2006, 2007, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * The Road goes ever on and on
13 * Down from the door where it began.
15 * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"]
16 * [Frodo on p.73 of _The Lord of the Rings_, I/iii: "Three Is Company"]
19 /* This file contains the main() function for the perl interpreter.
20 * Note that miniperlmain.c contains main() for the 'miniperl' binary,
21 * while perlmain.c contains main() for the 'perl' binary.
23 * Miniperl is like perl except that it does not support dynamic loading,
24 * and in fact is used to build the dynamic modules needed for the 'real'
30 /* sbrk is limited to first heap segment so make it big */
31 #pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
33 #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
39 #define PERL_IN_MINIPERLMAIN_C
42 static void xs_init (pTHX);
43 static PerlInterpreter *my_perl;
45 #if defined (__MINT__) || defined (atarist)
46 /* The Atari operating system doesn't have a dynamic stack. The
47 stack size is determined from this value. */
48 long _stksize = 64 * 1024;
51 #if defined(PERL_GLOBAL_STRUCT_PRIVATE)
52 /* The static struct perl_vars* may seem counterproductive since the
53 * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note
54 * that this static is not in the shared perl library, the globals PL_Vars
55 * and PL_VarsPtr will stay away. */
56 static struct perl_vars* my_plvarsp;
57 struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; }
60 #ifdef NO_ENV_ARRAY_IN_MAIN
61 extern char **environ;
63 main(int argc, char **argv)
66 main(int argc, char **argv, char **env)
71 #ifdef PERL_GLOBAL_STRUCT
72 struct perl_vars *plvarsp = init_global_struct();
73 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
74 my_vars = my_plvarsp = plvarsp;
76 #endif /* PERL_GLOBAL_STRUCT */
78 #ifndef PERL_USE_SAFE_PUTENV
79 PL_use_safe_putenv = 0;
80 #endif /* PERL_USE_SAFE_PUTENV */
82 /* if user wants control of gprof profiling off by default */
83 /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */
84 PERL_GPROF_MONCONTROL(0);
86 #ifdef NO_ENV_ARRAY_IN_MAIN
87 PERL_SYS_INIT3(&argc,&argv,&environ);
89 PERL_SYS_INIT3(&argc,&argv,&env);
92 #if defined(USE_ITHREADS)
93 /* XXX Ideally, this should really be happening in perl_alloc() or
94 * perl_construct() to keep libperl.a transparently fork()-safe.
95 * It is currently done here only because Apache/mod_perl have
96 * problems due to lack of a call to cancel pthread_atfork()
97 * handlers when shared objects that contain the handlers may
98 * be dlclose()d. This forces applications that embed perl to
99 * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't
100 * been called at least once before in the current process.
101 * --GSAR 2001-07-20 */
102 PTHREAD_ATFORK(Perl_atfork_lock,
108 my_perl = perl_alloc();
111 perl_construct(my_perl);
112 PL_perl_destruct_level = 0;
114 PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
115 exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL);
119 exitstatus = perl_destruct(my_perl);
123 #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN)
125 * The old environment may have been freed by perl_free()
126 * when PERL_TRACK_MEMPOOL is defined, but without having
127 * been restored by perl_destruct() before (this is only
128 * done if destruct_level > 0).
130 * It is important to have a valid environment for atexit()
131 * routines that are eventually called.
136 #ifdef PERL_GLOBAL_STRUCT
137 free_global_struct(plvarsp);
138 #endif /* PERL_GLOBAL_STRUCT */
146 /* Register any extra external extensions */
148 /* Do not delete this line--writemain depends on it */
159 * c-indentation-style: bsd
161 * indent-tabs-mode: t
164 * ex: set ts=8 sts=4 sw=4 noet: