3 * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
4 * 2004, 2005, 2006 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, down from the door where it began."
15 /* This file contains the main() function for the perl interpreter.
16 * Note that miniperlmain.c contains main() for the 'miniperl' binary,
17 * while perlmain.c contains main() for the 'perl' binary.
19 * Miniperl is like perl except that it does not support dynamic loading,
20 * and in fact is used to build the dynamic modules needed for the 'real'
26 /* sbrk is limited to first heap segment so make it big */
27 #pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
29 #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
35 #define PERL_IN_MINIPERLMAIN_C
38 static void xs_init (pTHX);
39 static PerlInterpreter *my_perl;
41 #if defined (__MINT__) || defined (atarist)
42 /* The Atari operating system doesn't have a dynamic stack. The
43 stack size is determined from this value. */
44 long _stksize = 64 * 1024;
47 #if defined(PERL_GLOBAL_STRUCT_PRIVATE)
48 /* The static struct perl_vars* may seem counterproductive since the
49 * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note
50 * that this static is not in the shared perl library, the globals PL_Vars
51 * and PL_VarsPtr will stay away. */
52 static struct perl_vars* my_plvarsp;
53 struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; }
56 #ifdef NO_ENV_ARRAY_IN_MAIN
57 extern char **environ;
59 main(int argc, char **argv)
62 main(int argc, char **argv, char **env)
67 #ifdef PERL_GLOBAL_STRUCT
68 struct perl_vars *plvarsp = init_global_struct();
69 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
70 my_vars = my_plvarsp = plvarsp;
72 #endif /* PERL_GLOBAL_STRUCT */
74 #ifndef PERL_USE_SAFE_PUTENV
75 PL_use_safe_putenv = 0;
76 #endif /* PERL_USE_SAFE_PUTENV */
78 /* if user wants control of gprof profiling off by default */
79 /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */
80 PERL_GPROF_MONCONTROL(0);
82 #ifdef NO_ENV_ARRAY_IN_MAIN
83 PERL_SYS_INIT3(&argc,&argv,&environ);
85 PERL_SYS_INIT3(&argc,&argv,&env);
88 #if defined(USE_ITHREADS)
89 /* XXX Ideally, this should really be happening in perl_alloc() or
90 * perl_construct() to keep libperl.a transparently fork()-safe.
91 * It is currently done here only because Apache/mod_perl have
92 * problems due to lack of a call to cancel pthread_atfork()
93 * handlers when shared objects that contain the handlers may
94 * be dlclose()d. This forces applications that embed perl to
95 * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't
96 * been called at least once before in the current process.
97 * --GSAR 2001-07-20 */
98 PTHREAD_ATFORK(Perl_atfork_lock,
104 my_perl = perl_alloc();
107 perl_construct(my_perl);
108 PL_perl_destruct_level = 0;
110 PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
111 exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL);
115 exitstatus = perl_destruct(my_perl);
119 #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN)
121 * The old environment may have been freed by perl_free()
122 * when PERL_TRACK_MEMPOOL is defined, but without having
123 * been restored by perl_destruct() before (this is only
124 * done if destruct_level > 0).
126 * It is important to have a valid environment for atexit()
127 * routines that are eventually called.
132 #ifdef PERL_GLOBAL_STRUCT
133 free_global_struct(plvarsp);
134 #endif /* PERL_GLOBAL_STRUCT */
142 /* Register any extra external extensions */
144 /* Do not delete this line--writemain depends on it */
155 * c-indentation-style: bsd
157 * indent-tabs-mode: t
160 * ex: set ts=8 sts=4 sw=4 noet: