+/* miniperlmain.c
+ *
+ * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
+ * 2004, 2005, 2006, 2007, by Larry Wall and others
+ *
+ * You may distribute under the terms of either the GNU General Public
+ * License or the Artistic License, as specified in the README file.
+ *
+ */
+
/*
- * "The Road goes ever on and on, down from the door where it began."
+ * The Road goes ever on and on
+ * Down from the door where it began.
+ *
+ * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"]
+ * [Frodo on p.73 of _The Lord of the Rings_, I/iii: "Three Is Company"]
+ */
+
+/* This file contains the main() function for the perl interpreter.
+ * Note that miniperlmain.c contains main() for the 'miniperl' binary,
+ * while perlmain.c contains main() for the 'perl' binary.
+ *
+ * Miniperl is like perl except that it does not support dynamic loading,
+ * and in fact is used to build the dynamic modules needed for the 'real'
+ * perl executable.
*/
#ifdef OEMVS
#ifdef MYMALLOC
-/* sbrk is limited to first heap segement so make it big */
+/* sbrk is limited to first heap segment so make it big */
#pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
#else
#pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
static void xs_init (pTHX);
static PerlInterpreter *my_perl;
-#if defined (__MINT__) || defined (atarist)
+#if defined (atarist)
/* The Atari operating system doesn't have a dynamic stack. The
stack size is determined from this value. */
long _stksize = 64 * 1024;
#endif
+#if defined(PERL_GLOBAL_STRUCT_PRIVATE)
+/* The static struct perl_vars* may seem counterproductive since the
+ * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note
+ * that this static is not in the shared perl library, the globals PL_Vars
+ * and PL_VarsPtr will stay away. */
+static struct perl_vars* my_plvarsp;
+struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; }
+#endif
+
+#ifdef NO_ENV_ARRAY_IN_MAIN
+extern char **environ;
+int
+main(int argc, char **argv)
+#else
int
main(int argc, char **argv, char **env)
+#endif
{
- int exitstatus;
-
+ dVAR;
+ int exitstatus, i;
#ifdef PERL_GLOBAL_STRUCT
-#define PERLVAR(var,type) /**/
-#define PERLVARA(var,type) /**/
-#define PERLVARI(var,type,init) PL_Vars.var = init;
-#define PERLVARIC(var,type,init) PL_Vars.var = init;
-#include "perlvars.h"
-#undef PERLVAR
-#undef PERLVARA
-#undef PERLVARI
-#undef PERLVARIC
+ struct perl_vars *plvarsp = init_global_struct();
+# ifdef PERL_GLOBAL_STRUCT_PRIVATE
+ my_vars = my_plvarsp = plvarsp;
+# endif
+#endif /* PERL_GLOBAL_STRUCT */
+#ifndef NO_ENV_ARRAY_IN_MAIN
+ PERL_UNUSED_ARG(env);
#endif
+#ifndef PERL_USE_SAFE_PUTENV
+ PL_use_safe_putenv = FALSE;
+#endif /* PERL_USE_SAFE_PUTENV */
/* if user wants control of gprof profiling off by default */
/* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */
PERL_GPROF_MONCONTROL(0);
+#ifdef NO_ENV_ARRAY_IN_MAIN
+ PERL_SYS_INIT3(&argc,&argv,&environ);
+#else
PERL_SYS_INIT3(&argc,&argv,&env);
+#endif
+
+#if defined(USE_ITHREADS)
+ /* XXX Ideally, this should really be happening in perl_alloc() or
+ * perl_construct() to keep libperl.a transparently fork()-safe.
+ * It is currently done here only because Apache/mod_perl have
+ * problems due to lack of a call to cancel pthread_atfork()
+ * handlers when shared objects that contain the handlers may
+ * be dlclose()d. This forces applications that embed perl to
+ * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't
+ * been called at least once before in the current process.
+ * --GSAR 2001-07-20 */
+ PTHREAD_ATFORK(Perl_atfork_lock,
+ Perl_atfork_unlock,
+ Perl_atfork_unlock);
+#endif
if (!PL_do_undump) {
my_perl = perl_alloc();
perl_construct(my_perl);
PL_perl_destruct_level = 0;
}
-
+ PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL);
- if (!exitstatus) {
- exitstatus = perl_run(my_perl);
+ if (!exitstatus)
+ perl_run(my_perl);
+
+#ifndef PERL_MICRO
+ /* Unregister our signal handler before destroying my_perl */
+ for (i = 0; PL_sig_name[i]; i++) {
+ if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) {
+ rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL);
+ }
}
+#endif
+
+ exitstatus = perl_destruct(my_perl);
- perl_destruct(my_perl);
perl_free(my_perl);
+#if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN)
+ /*
+ * The old environment may have been freed by perl_free()
+ * when PERL_TRACK_MEMPOOL is defined, but without having
+ * been restored by perl_destruct() before (this is only
+ * done if destruct_level > 0).
+ *
+ * It is important to have a valid environment for atexit()
+ * routines that are eventually called.
+ */
+ environ = env;
+#endif
+
+#ifdef PERL_GLOBAL_STRUCT
+ free_global_struct(plvarsp);
+#endif /* PERL_GLOBAL_STRUCT */
+
PERL_SYS_TERM();
exit(exitstatus);
static void
xs_init(pTHX)
{
+ PERL_UNUSED_CONTEXT;
dXSUB_SYS;
}
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */
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