X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/2c4f7f0e97d22d4d7509fee1fc57509fac9291b6..ca6ebcd6405d5ab46fb0688c45dc44661698a7c0:/miniperlmain.c

diff --git a/miniperlmain.c b/miniperlmain.c
index ed28f47..0d32aea 100644
--- a/miniperlmain.c
+++ b/miniperlmain.c
@@ -1,52 +1,125 @@
+/* -*- buffer-read-only: t -*-
+   !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
+   This file is built by regen/miniperlmain.pl and ExtUtils::Miniperl.
+   Any changes made here will be lost!
+ */
+
+/*    miniperlmain.c or perlmain.c - a generated file
+ *
+ *    Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003,
+ *    2004, 2005, 2006, 2007, 2016 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. The typical
+ * difference being that the latter includes Dynaloader.
+ *
+ * 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.
+ *
+ * The content of the body of this generated file is mostly contained
+ * in Miniperl.pm - edit that file if you want to change anything.
+ * miniperlmain.c is generated by running regen/miniperlmain.pl, while
+ * perlmain.c is built automatically by Makefile (so the former is
+ * included in the tarball while the latter isn't).
  */
 
 #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))
 #endif
 #endif
 
+#define PERL_IN_MINIPERLMAIN_C
+
+/* work round bug in MakeMaker which doesn't currently (2019) supply this
+ * flag when making a statically linked perl */
+#define PERL_CORE 1
 
 #include "EXTERN.h"
-#define PERL_IN_MINIPERLMAIN_C
 #include "perl.h"
+#include "XSUB.h"
 
 static void xs_init (pTHX);
 static PerlInterpreter *my_perl;
 
-#if defined (__MINT__) || defined (atarist)
-/* The Atari operating system doesn't have a dynamic stack.  The
-   stack size is determined from this value.  */
-long _stksize = 64 * 1024;
+#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;
-
+    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 *my_vars = init_global_struct();
+#  ifdef PERL_GLOBAL_STRUCT_PRIVATE
+    int veto;
+
+    my_plvarsp = my_vars;
+#  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
+
+    PERL_SYS_FPU_INIT;
 
     if (!PL_do_undump) {
 	my_perl = perl_alloc();
@@ -55,27 +128,63 @@ main(int argc, char **argv, char **env)
 	perl_construct(my_perl);
 	PL_perl_destruct_level = 0;
     }
-
-    exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL);
-    if (!exitstatus) {
-	exitstatus = perl_run(my_perl);
+    PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
+    if (!perl_parse(my_perl, xs_init, argc, argv, (char **)NULL))
+        perl_run(my_perl);
+
+#ifndef PERL_MICRO
+    /* Unregister our signal handler before destroying my_perl */
+    for (i = 1; 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
+
     PERL_SYS_TERM();
 
+#ifdef PERL_GLOBAL_STRUCT
+#  ifdef PERL_GLOBAL_STRUCT_PRIVATE
+    veto = my_plvarsp->Gveto_cleanup;
+#  endif
+    free_global_struct(my_vars);
+#  ifdef PERL_GLOBAL_STRUCT_PRIVATE
+    if (!veto)
+        my_plvarsp = NULL;
+    /* Remember, functions registered with atexit() can run after this point,
+       and may access "global" variables, and hence end up calling
+       Perl_GetVarsPrivate()  */
+#endif
+#endif /* PERL_GLOBAL_STRUCT */
+
     exit(exitstatus);
-    return exitstatus;
 }
 
 /* Register any extra external extensions */
 
-/* Do not delete this line--writemain depends on it */
 
 static void
 xs_init(pTHX)
 {
     dXSUB_SYS;
+    PERL_UNUSED_CONTEXT;
 }
+
+/* ex: set ro: */