Commit | Line | Data |
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d6376244 JH |
1 | /* miniperlmain.c |
2 | * | |
cbdf9ef8 | 3 | * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, |
fdf8c088 | 4 | * 2004, 2005, 2006 by Larry Wall and others |
d6376244 JH |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
a0d0e21e LW |
11 | /* |
12 | * "The Road goes ever on and on, down from the door where it began." | |
13 | */ | |
14 | ||
166f8a29 DM |
15 | /* This file contains the main() function for the perl interpreter. |
16 | * Note that miniperlmain.c contains main() for the 'miniperl' binary, | |
17 | * while perlmain.c contains main() for the 'perl' binary. | |
18 | * | |
ddfa107c DM |
19 | * Miniperl is like perl except that it does not support dynamic loading, |
20 | * and in fact is used to build the dynamic modules needed for the 'real' | |
61296642 | 21 | * perl executable. |
166f8a29 DM |
22 | */ |
23 | ||
60e4866f | 24 | #ifdef OEMVS |
9133bbab | 25 | #ifdef MYMALLOC |
61296642 | 26 | /* sbrk is limited to first heap segment so make it big */ |
9133bbab NIS |
27 | #pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON)) |
28 | #else | |
29 | #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON)) | |
30 | #endif | |
60e4866f LJ |
31 | #endif |
32 | ||
4633a7c4 | 33 | |
ecfc5424 | 34 | #include "EXTERN.h" |
864dbfa3 | 35 | #define PERL_IN_MINIPERLMAIN_C |
2304df62 AD |
36 | #include "perl.h" |
37 | ||
864dbfa3 | 38 | static void xs_init (pTHX); |
a0d0e21e LW |
39 | static PerlInterpreter *my_perl; |
40 | ||
61ae2fbf JH |
41 | #if defined (__MINT__) || defined (atarist) |
42 | /* The Atari operating system doesn't have a dynamic stack. The | |
43 | stack size is determined from this value. */ | |
44 | long _stksize = 64 * 1024; | |
45 | #endif | |
46 | ||
27da23d5 JH |
47 | #if defined(PERL_GLOBAL_STRUCT_PRIVATE) |
48 | /* The static struct perl_vars* may seem counterproductive since the | |
49 | * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note | |
50 | * that this static is not in the shared perl library, the globals PL_Vars | |
51 | * and PL_VarsPtr will stay away. */ | |
52 | static struct perl_vars* my_plvarsp; | |
53 | struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; } | |
54 | #endif | |
55 | ||
2f3efc97 JH |
56 | #ifdef NO_ENV_ARRAY_IN_MAIN |
57 | extern char **environ; | |
58 | int | |
59 | main(int argc, char **argv) | |
60 | #else | |
c07a80fd | 61 | int |
91487cfc | 62 | main(int argc, char **argv, char **env) |
2f3efc97 | 63 | #endif |
2304df62 | 64 | { |
27da23d5 | 65 | dVAR; |
2304df62 | 66 | int exitstatus; |
27da23d5 JH |
67 | #ifdef PERL_GLOBAL_STRUCT |
68 | struct perl_vars *plvarsp = init_global_struct(); | |
69 | # ifdef PERL_GLOBAL_STRUCT_PRIVATE | |
70 | my_vars = my_plvarsp = plvarsp; | |
71 | # endif | |
72 | #endif /* PERL_GLOBAL_STRUCT */ | |
dd374669 | 73 | (void)env; |
50acdf95 MS |
74 | #ifndef PERL_USE_SAFE_PUTENV |
75 | PL_use_safe_putenv = 0; | |
76 | #endif /* PERL_USE_SAFE_PUTENV */ | |
2304df62 | 77 | |
2c4f7f0e DM |
78 | /* if user wants control of gprof profiling off by default */ |
79 | /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */ | |
80 | PERL_GPROF_MONCONTROL(0); | |
81 | ||
2f3efc97 JH |
82 | #ifdef NO_ENV_ARRAY_IN_MAIN |
83 | PERL_SYS_INIT3(&argc,&argv,&environ); | |
84 | #else | |
91487cfc | 85 | PERL_SYS_INIT3(&argc,&argv,&env); |
2f3efc97 | 86 | #endif |
4633a7c4 | 87 | |
3db8f154 | 88 | #if defined(USE_ITHREADS) |
52e18b1f GS |
89 | /* XXX Ideally, this should really be happening in perl_alloc() or |
90 | * perl_construct() to keep libperl.a transparently fork()-safe. | |
91 | * It is currently done here only because Apache/mod_perl have | |
92 | * problems due to lack of a call to cancel pthread_atfork() | |
93 | * handlers when shared objects that contain the handlers may | |
94 | * be dlclose()d. This forces applications that embed perl to | |
95 | * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't | |
96 | * been called at least once before in the current process. | |
97 | * --GSAR 2001-07-20 */ | |
98e467d9 DM |
98 | PTHREAD_ATFORK(Perl_atfork_lock, |
99 | Perl_atfork_unlock, | |
100 | Perl_atfork_unlock); | |
101 | #endif | |
102 | ||
3280af22 | 103 | if (!PL_do_undump) { |
a0d0e21e LW |
104 | my_perl = perl_alloc(); |
105 | if (!my_perl) | |
106 | exit(1); | |
642f9deb | 107 | perl_construct(my_perl); |
3280af22 | 108 | PL_perl_destruct_level = 0; |
a0d0e21e | 109 | } |
31d77e54 | 110 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
642f9deb | 111 | exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL); |
8815fa0e | 112 | if (!exitstatus) |
31d77e54 | 113 | perl_run(my_perl); |
22f43f2c | 114 | |
8815fa0e | 115 | exitstatus = perl_destruct(my_perl); |
2304df62 | 116 | |
642f9deb | 117 | perl_free(my_perl); |
2304df62 | 118 | |
2f3efc97 | 119 | #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN) |
22f43f2c MHM |
120 | /* |
121 | * The old environment may have been freed by perl_free() | |
122 | * when PERL_TRACK_MEMPOOL is defined, but without having | |
123 | * been restored by perl_destruct() before (this is only | |
124 | * done if destruct_level > 0). | |
125 | * | |
126 | * It is important to have a valid environment for atexit() | |
127 | * routines that are eventually called. | |
128 | */ | |
129 | environ = env; | |
130 | #endif | |
131 | ||
27da23d5 JH |
132 | #ifdef PERL_GLOBAL_STRUCT |
133 | free_global_struct(plvarsp); | |
134 | #endif /* PERL_GLOBAL_STRUCT */ | |
135 | ||
a91be337 | 136 | PERL_SYS_TERM(); |
137 | ||
642f9deb | 138 | exit(exitstatus); |
4e35701f | 139 | return exitstatus; |
2304df62 AD |
140 | } |
141 | ||
142 | /* Register any extra external extensions */ | |
143 | ||
4633a7c4 LW |
144 | /* Do not delete this line--writemain depends on it */ |
145 | ||
a0d0e21e | 146 | static void |
864dbfa3 | 147 | xs_init(pTHX) |
2304df62 | 148 | { |
96a5add6 | 149 | PERL_UNUSED_CONTEXT; |
642f9deb | 150 | dXSUB_SYS; |
2304df62 | 151 | } |
66610fdd RGS |
152 | |
153 | /* | |
154 | * Local variables: | |
155 | * c-indentation-style: bsd | |
156 | * c-basic-offset: 4 | |
157 | * indent-tabs-mode: t | |
158 | * End: | |
159 | * | |
37442d52 RGS |
160 | * ex: set ts=8 sts=4 sw=4 noet: |
161 | */ |