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[perl5.git] / miniperlmain.c
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1/* -*- buffer-read-only: t -*-
2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by regen/miniperlmain.pl and ExtUtils::Miniperl.
4 Any changes made here will be lost!
5 */
6
9f99f3e9 7/* miniperlmain.c or perlmain.c - a generated file
d6376244 8 *
cbdf9ef8 9 * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
9f99f3e9 10 * 2004, 2005, 2006, 2007, 2016 by Larry Wall and others
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11 *
12 * You may distribute under the terms of either the GNU General Public
13 * License or the Artistic License, as specified in the README file.
14 *
15 */
16
a0d0e21e 17/*
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18 * The Road goes ever on and on
19 * Down from the door where it began.
20 *
21 * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"]
22 * [Frodo on p.73 of _The Lord of the Rings_, I/iii: "Three Is Company"]
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23 */
24
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25/* This file contains the main() function for the perl interpreter.
26 * Note that miniperlmain.c contains main() for the 'miniperl' binary,
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27 * while perlmain.c contains main() for the 'perl' binary. The typical
28 * difference being that the latter includes Dynaloader.
166f8a29 29 *
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30 * Miniperl is like perl except that it does not support dynamic loading,
31 * and in fact is used to build the dynamic modules needed for the 'real'
61296642 32 * perl executable.
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33 *
34 * The content of the body of this generated file is mostly contained
35 * in Miniperl.pm - edit that file if you want to change anything.
36 * miniperlmain.c is generated by running regen/miniperlmain.pl.pl, while
37 * perlmain.c is built automatically by Makefile (so the former is
38 * included in the tarball while the latter isn't).
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39 */
40
60e4866f 41#ifdef OEMVS
9133bbab 42#ifdef MYMALLOC
61296642 43/* sbrk is limited to first heap segment so make it big */
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44#pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
45#else
46#pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
47#endif
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48#endif
49
864dbfa3 50#define PERL_IN_MINIPERLMAIN_C
d573a731 51#include "EXTERN.h"
2304df62 52#include "perl.h"
c8935f6c 53#include "XSUB.h"
2304df62 54
864dbfa3 55static void xs_init (pTHX);
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56static PerlInterpreter *my_perl;
57
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58#if defined(PERL_GLOBAL_STRUCT_PRIVATE)
59/* The static struct perl_vars* may seem counterproductive since the
60 * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note
61 * that this static is not in the shared perl library, the globals PL_Vars
62 * and PL_VarsPtr will stay away. */
63static struct perl_vars* my_plvarsp;
64struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; }
65#endif
66
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67#ifdef NO_ENV_ARRAY_IN_MAIN
68extern char **environ;
69int
70main(int argc, char **argv)
71#else
c07a80fd 72int
91487cfc 73main(int argc, char **argv, char **env)
2f3efc97 74#endif
2304df62 75{
01be0729 76 int exitstatus, i;
27da23d5 77#ifdef PERL_GLOBAL_STRUCT
79403e77 78 struct perl_vars *my_vars = init_global_struct();
27da23d5 79# ifdef PERL_GLOBAL_STRUCT_PRIVATE
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80 int veto;
81
79403e77 82 my_plvarsp = my_vars;
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83# endif
84#endif /* PERL_GLOBAL_STRUCT */
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85#ifndef NO_ENV_ARRAY_IN_MAIN
86 PERL_UNUSED_ARG(env);
87#endif
50acdf95 88#ifndef PERL_USE_SAFE_PUTENV
8bf20623 89 PL_use_safe_putenv = FALSE;
50acdf95 90#endif /* PERL_USE_SAFE_PUTENV */
2304df62 91
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92 /* if user wants control of gprof profiling off by default */
93 /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */
94 PERL_GPROF_MONCONTROL(0);
95
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96#ifdef NO_ENV_ARRAY_IN_MAIN
97 PERL_SYS_INIT3(&argc,&argv,&environ);
98#else
91487cfc 99 PERL_SYS_INIT3(&argc,&argv,&env);
2f3efc97 100#endif
4633a7c4 101
3db8f154 102#if defined(USE_ITHREADS)
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103 /* XXX Ideally, this should really be happening in perl_alloc() or
104 * perl_construct() to keep libperl.a transparently fork()-safe.
105 * It is currently done here only because Apache/mod_perl have
106 * problems due to lack of a call to cancel pthread_atfork()
107 * handlers when shared objects that contain the handlers may
108 * be dlclose()d. This forces applications that embed perl to
109 * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't
110 * been called at least once before in the current process.
111 * --GSAR 2001-07-20 */
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112 PTHREAD_ATFORK(Perl_atfork_lock,
113 Perl_atfork_unlock,
114 Perl_atfork_unlock);
115#endif
116
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117 PERL_SYS_FPU_INIT;
118
3280af22 119 if (!PL_do_undump) {
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120 my_perl = perl_alloc();
121 if (!my_perl)
122 exit(1);
642f9deb 123 perl_construct(my_perl);
3280af22 124 PL_perl_destruct_level = 0;
a0d0e21e 125 }
31d77e54 126 PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
642f9deb 127 exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL);
8815fa0e 128 if (!exitstatus)
31d77e54 129 perl_run(my_perl);
22f43f2c 130
01d65469 131#ifndef PERL_MICRO
01be0729 132 /* Unregister our signal handler before destroying my_perl */
724be0c9 133 for (i = 1; PL_sig_name[i]; i++) {
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134 if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) {
135 rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL);
136 }
137 }
01d65469 138#endif
01be0729 139
8815fa0e 140 exitstatus = perl_destruct(my_perl);
2304df62 141
642f9deb 142 perl_free(my_perl);
2304df62 143
2f3efc97 144#if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN)
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145 /*
146 * The old environment may have been freed by perl_free()
147 * when PERL_TRACK_MEMPOOL is defined, but without having
148 * been restored by perl_destruct() before (this is only
149 * done if destruct_level > 0).
150 *
151 * It is important to have a valid environment for atexit()
152 * routines that are eventually called.
153 */
154 environ = env;
155#endif
156
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157 PERL_SYS_TERM();
158
27da23d5 159#ifdef PERL_GLOBAL_STRUCT
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160# ifdef PERL_GLOBAL_STRUCT_PRIVATE
161 veto = my_plvarsp->Gveto_cleanup;
162# endif
79403e77 163 free_global_struct(my_vars);
5c64bffd 164# ifdef PERL_GLOBAL_STRUCT_PRIVATE
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165 if (!veto)
166 my_plvarsp = NULL;
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167 /* Remember, functions registered with atexit() can run after this point,
168 and may access "global" variables, and hence end up calling
169 Perl_GetVarsPrivate() */
170#endif
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171#endif /* PERL_GLOBAL_STRUCT */
172
642f9deb 173 exit(exitstatus);
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174}
175
176/* Register any extra external extensions */
177
4633a7c4 178
a0d0e21e 179static void
864dbfa3 180xs_init(pTHX)
2304df62 181{
a78951c8 182 dXSUB_SYS;
96a5add6 183 PERL_UNUSED_CONTEXT;
2304df62 184}
66610fdd 185
47be8fd0 186/* ex: set ro: */