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 7 /* miniperlmain.c or perlmain.c - a generated file 8 * 9 * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 10 * 2004, 2005, 2006, 2007, 2016 by Larry Wall and others 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 17 /* 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"] 23 */ 24 25 /* This file contains the main() function for the perl interpreter. 26 * Note that miniperlmain.c contains main() for the 'miniperl' binary, 27 * while perlmain.c contains main() for the 'perl' binary. The typical 28 * difference being that the latter includes Dynaloader. 29 * 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' 32 * perl executable. 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). 39 */ 40 41 #ifdef OEMVS 42 #ifdef MYMALLOC 43 /* sbrk is limited to first heap segment so make it big */ 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 48 #endif 49 50 #define PERL_IN_MINIPERLMAIN_C 51 #include "EXTERN.h" 52 #include "perl.h" 53 #include "XSUB.h" 54 55 static void xs_init (pTHX); 56 static PerlInterpreter *my_perl; 57 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. */ 63 static struct perl_vars* my_plvarsp; 64 struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; } 65 #endif 66 67 #ifdef NO_ENV_ARRAY_IN_MAIN 68 extern char **environ; 69 int 70 main(int argc, char **argv) 71 #else 72 int 73 main(int argc, char **argv, char **env) 74 #endif 75 { 76 int exitstatus, i; 77 #ifdef PERL_GLOBAL_STRUCT 78 struct perl_vars *my_vars = init_global_struct(); 79 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 80 int veto; 81 82 my_plvarsp = my_vars; 83 # endif 84 #endif /* PERL_GLOBAL_STRUCT */ 85 #ifndef NO_ENV_ARRAY_IN_MAIN 86 PERL_UNUSED_ARG(env); 87 #endif 88 #ifndef PERL_USE_SAFE_PUTENV 89 PL_use_safe_putenv = FALSE; 90 #endif /* PERL_USE_SAFE_PUTENV */ 91 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 96 #ifdef NO_ENV_ARRAY_IN_MAIN 97 PERL_SYS_INIT3(&argc,&argv,&environ); 98 #else 99 PERL_SYS_INIT3(&argc,&argv,&env); 100 #endif 101 102 #if defined(USE_ITHREADS) 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 */ 112 PTHREAD_ATFORK(Perl_atfork_lock, 113 Perl_atfork_unlock, 114 Perl_atfork_unlock); 115 #endif 116 117 PERL_SYS_FPU_INIT; 118 119 if (!PL_do_undump) { 120 my_perl = perl_alloc(); 121 if (!my_perl) 122 exit(1); 123 perl_construct(my_perl); 124 PL_perl_destruct_level = 0; 125 } 126 PL_exit_flags |= PERL_EXIT_DESTRUCT_END; 127 if (!perl_parse(my_perl, xs_init, argc, argv, (char **)NULL)) 128 perl_run(my_perl); 129 130 #ifndef PERL_MICRO 131 /* Unregister our signal handler before destroying my_perl */ 132 for (i = 1; PL_sig_name[i]; i++) { 133 if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) { 134 rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL); 135 } 136 } 137 #endif 138 139 exitstatus = perl_destruct(my_perl); 140 141 perl_free(my_perl); 142 143 #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN) 144 /* 145 * The old environment may have been freed by perl_free() 146 * when PERL_TRACK_MEMPOOL is defined, but without having 147 * been restored by perl_destruct() before (this is only 148 * done if destruct_level > 0). 149 * 150 * It is important to have a valid environment for atexit() 151 * routines that are eventually called. 152 */ 153 environ = env; 154 #endif 155 156 PERL_SYS_TERM(); 157 158 #ifdef PERL_GLOBAL_STRUCT 159 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 160 veto = my_plvarsp->Gveto_cleanup; 161 # endif 162 free_global_struct(my_vars); 163 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 164 if (!veto) 165 my_plvarsp = NULL; 166 /* Remember, functions registered with atexit() can run after this point, 167 and may access "global" variables, and hence end up calling 168 Perl_GetVarsPrivate() */ 169 #endif 170 #endif /* PERL_GLOBAL_STRUCT */ 171 172 exit(exitstatus); 173 } 174 175 /* Register any extra external extensions */ 176 177 178 static void 179 xs_init(pTHX) 180 { 181 dXSUB_SYS; 182 PERL_UNUSED_CONTEXT; 183 } 184 185 /* ex: set ro: */ 186