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 8 * 9 * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 10 * 2004, 2005, 2006, 2007, 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. 28 * 29 * Miniperl is like perl except that it does not support dynamic loading, 30 * and in fact is used to build the dynamic modules needed for the 'real' 31 * perl executable. 32 */ 33 34 #ifdef OEMVS 35 #ifdef MYMALLOC 36 /* sbrk is limited to first heap segment so make it big */ 37 #pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON)) 38 #else 39 #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON)) 40 #endif 41 #endif 42 43 #define PERL_IN_MINIPERLMAIN_C 44 #include "EXTERN.h" 45 #include "perl.h" 46 #include "XSUB.h" 47 48 static void xs_init (pTHX); 49 static PerlInterpreter *my_perl; 50 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; } 58 #endif 59 60 #ifdef NO_ENV_ARRAY_IN_MAIN 61 extern char **environ; 62 int 63 main(int argc, char **argv) 64 #else 65 int 66 main(int argc, char **argv, char **env) 67 #endif 68 { 69 int exitstatus, i; 70 #ifdef PERL_GLOBAL_STRUCT 71 struct perl_vars *my_vars = init_global_struct(); 72 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 73 int veto; 74 75 my_plvarsp = my_vars; 76 # endif 77 #endif /* PERL_GLOBAL_STRUCT */ 78 #ifndef NO_ENV_ARRAY_IN_MAIN 79 PERL_UNUSED_ARG(env); 80 #endif 81 #ifndef PERL_USE_SAFE_PUTENV 82 PL_use_safe_putenv = FALSE; 83 #endif /* PERL_USE_SAFE_PUTENV */ 84 85 /* if user wants control of gprof profiling off by default */ 86 /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */ 87 PERL_GPROF_MONCONTROL(0); 88 89 #ifdef NO_ENV_ARRAY_IN_MAIN 90 PERL_SYS_INIT3(&argc,&argv,&environ); 91 #else 92 PERL_SYS_INIT3(&argc,&argv,&env); 93 #endif 94 95 #if defined(USE_ITHREADS) 96 /* XXX Ideally, this should really be happening in perl_alloc() or 97 * perl_construct() to keep libperl.a transparently fork()-safe. 98 * It is currently done here only because Apache/mod_perl have 99 * problems due to lack of a call to cancel pthread_atfork() 100 * handlers when shared objects that contain the handlers may 101 * be dlclose()d. This forces applications that embed perl to 102 * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't 103 * been called at least once before in the current process. 104 * --GSAR 2001-07-20 */ 105 PTHREAD_ATFORK(Perl_atfork_lock, 106 Perl_atfork_unlock, 107 Perl_atfork_unlock); 108 #endif 109 110 if (!PL_do_undump) { 111 my_perl = perl_alloc(); 112 if (!my_perl) 113 exit(1); 114 perl_construct(my_perl); 115 PL_perl_destruct_level = 0; 116 } 117 PL_exit_flags |= PERL_EXIT_DESTRUCT_END; 118 exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL); 119 if (!exitstatus) 120 perl_run(my_perl); 121 122 #ifndef PERL_MICRO 123 /* Unregister our signal handler before destroying my_perl */ 124 for (i = 1; PL_sig_name[i]; i++) { 125 if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) { 126 rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL); 127 } 128 } 129 #endif 130 131 exitstatus = perl_destruct(my_perl); 132 133 perl_free(my_perl); 134 135 #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN) 136 /* 137 * The old environment may have been freed by perl_free() 138 * when PERL_TRACK_MEMPOOL is defined, but without having 139 * been restored by perl_destruct() before (this is only 140 * done if destruct_level > 0). 141 * 142 * It is important to have a valid environment for atexit() 143 * routines that are eventually called. 144 */ 145 environ = env; 146 #endif 147 148 PERL_SYS_TERM(); 149 150 #ifdef PERL_GLOBAL_STRUCT 151 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 152 veto = my_plvarsp->Gveto_cleanup; 153 # endif 154 free_global_struct(my_vars); 155 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 156 if (!veto) 157 my_plvarsp = NULL; 158 /* Remember, functions registered with atexit() can run after this point, 159 and may access "global" variables, and hence end up calling 160 Perl_GetVarsPrivate() */ 161 #endif 162 #endif /* PERL_GLOBAL_STRUCT */ 163 164 exit(exitstatus); 165 return exitstatus; 166 } 167 168 /* Register any extra external extensions */ 169 170 171 static void 172 xs_init(pTHX) 173 { 174 dXSUB_SYS; 175 PERL_UNUSED_CONTEXT; 176 } 177 178 /* ex: set ro: */ 179