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(PERL_GLOBAL_STRUCT_PRIVATE)
46 /* The static struct perl_vars* may seem counterproductive since the
47 * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note
48 * that this static is not in the shared perl library, the globals PL_Vars
49 * and PL_VarsPtr will stay away. */
50 static struct perl_vars* my_plvarsp;
51 struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; }
54 #ifdef NO_ENV_ARRAY_IN_MAIN
55 extern char **environ;
57 main(int argc, char **argv)
60 main(int argc, char **argv, char **env)
65 #ifdef PERL_GLOBAL_STRUCT
66 struct perl_vars *plvarsp = init_global_struct();
67 # ifdef PERL_GLOBAL_STRUCT_PRIVATE
68 my_vars = my_plvarsp = plvarsp;
70 #endif /* PERL_GLOBAL_STRUCT */
71 #ifndef NO_ENV_ARRAY_IN_MAIN
74 #ifndef PERL_USE_SAFE_PUTENV
75 PL_use_safe_putenv = FALSE;
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);
116 /* Unregister our signal handler before destroying my_perl */
117 for (i = 1; PL_sig_name[i]; i++) {
118 if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) {
119 rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL);
124 exitstatus = perl_destruct(my_perl);
128 #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN)
130 * The old environment may have been freed by perl_free()
131 * when PERL_TRACK_MEMPOOL is defined, but without having
132 * been restored by perl_destruct() before (this is only
133 * done if destruct_level > 0).
135 * It is important to have a valid environment for atexit()
136 * routines that are eventually called.
141 #ifdef PERL_GLOBAL_STRUCT
142 free_global_struct(plvarsp);
143 #endif /* PERL_GLOBAL_STRUCT */
151 /* Register any extra external extensions */
153 /* Do not delete this line--writemain depends on it */
164 * c-indentation-style: bsd
166 * indent-tabs-mode: nil
169 * ex: set ts=8 sts=4 sw=4 et: