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, |
663f364b | 4 | * 2004, 2005, 2006, 2007, 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 | 11 | /* |
4ac71550 TC |
12 | * The Road goes ever on and on |
13 | * Down from the door where it began. | |
14 | * | |
15 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
16 | * [Frodo on p.73 of _The Lord of the Rings_, I/iii: "Three Is Company"] | |
a0d0e21e LW |
17 | */ |
18 | ||
166f8a29 DM |
19 | /* This file contains the main() function for the perl interpreter. |
20 | * Note that miniperlmain.c contains main() for the 'miniperl' binary, | |
21 | * while perlmain.c contains main() for the 'perl' binary. | |
22 | * | |
ddfa107c DM |
23 | * Miniperl is like perl except that it does not support dynamic loading, |
24 | * and in fact is used to build the dynamic modules needed for the 'real' | |
61296642 | 25 | * perl executable. |
166f8a29 DM |
26 | */ |
27 | ||
60e4866f | 28 | #ifdef OEMVS |
9133bbab | 29 | #ifdef MYMALLOC |
61296642 | 30 | /* sbrk is limited to first heap segment so make it big */ |
9133bbab NIS |
31 | #pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON)) |
32 | #else | |
33 | #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON)) | |
34 | #endif | |
60e4866f LJ |
35 | #endif |
36 | ||
4633a7c4 | 37 | |
ecfc5424 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MINIPERLMAIN_C |
2304df62 AD |
40 | #include "perl.h" |
41 | ||
864dbfa3 | 42 | static void xs_init (pTHX); |
a0d0e21e LW |
43 | static PerlInterpreter *my_perl; |
44 | ||
cd86ed9d | 45 | #if defined (atarist) |
61ae2fbf JH |
46 | /* The Atari operating system doesn't have a dynamic stack. The |
47 | stack size is determined from this value. */ | |
48 | long _stksize = 64 * 1024; | |
49 | #endif | |
50 | ||
27da23d5 JH |
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 | ||
2f3efc97 JH |
60 | #ifdef NO_ENV_ARRAY_IN_MAIN |
61 | extern char **environ; | |
62 | int | |
63 | main(int argc, char **argv) | |
64 | #else | |
c07a80fd | 65 | int |
91487cfc | 66 | main(int argc, char **argv, char **env) |
2f3efc97 | 67 | #endif |
2304df62 | 68 | { |
27da23d5 | 69 | dVAR; |
01be0729 | 70 | int exitstatus, i; |
27da23d5 JH |
71 | #ifdef PERL_GLOBAL_STRUCT |
72 | struct perl_vars *plvarsp = init_global_struct(); | |
73 | # ifdef PERL_GLOBAL_STRUCT_PRIVATE | |
74 | my_vars = my_plvarsp = plvarsp; | |
75 | # endif | |
76 | #endif /* PERL_GLOBAL_STRUCT */ | |
dedb16dc DL |
77 | #ifndef NO_ENV_ARRAY_IN_MAIN |
78 | PERL_UNUSED_ARG(env); | |
79 | #endif | |
50acdf95 MS |
80 | #ifndef PERL_USE_SAFE_PUTENV |
81 | PL_use_safe_putenv = 0; | |
82 | #endif /* PERL_USE_SAFE_PUTENV */ | |
2304df62 | 83 | |
2c4f7f0e DM |
84 | /* if user wants control of gprof profiling off by default */ |
85 | /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */ | |
86 | PERL_GPROF_MONCONTROL(0); | |
87 | ||
2f3efc97 JH |
88 | #ifdef NO_ENV_ARRAY_IN_MAIN |
89 | PERL_SYS_INIT3(&argc,&argv,&environ); | |
90 | #else | |
91487cfc | 91 | PERL_SYS_INIT3(&argc,&argv,&env); |
2f3efc97 | 92 | #endif |
4633a7c4 | 93 | |
3db8f154 | 94 | #if defined(USE_ITHREADS) |
52e18b1f GS |
95 | /* XXX Ideally, this should really be happening in perl_alloc() or |
96 | * perl_construct() to keep libperl.a transparently fork()-safe. | |
97 | * It is currently done here only because Apache/mod_perl have | |
98 | * problems due to lack of a call to cancel pthread_atfork() | |
99 | * handlers when shared objects that contain the handlers may | |
100 | * be dlclose()d. This forces applications that embed perl to | |
101 | * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't | |
102 | * been called at least once before in the current process. | |
103 | * --GSAR 2001-07-20 */ | |
98e467d9 DM |
104 | PTHREAD_ATFORK(Perl_atfork_lock, |
105 | Perl_atfork_unlock, | |
106 | Perl_atfork_unlock); | |
107 | #endif | |
108 | ||
3280af22 | 109 | if (!PL_do_undump) { |
a0d0e21e LW |
110 | my_perl = perl_alloc(); |
111 | if (!my_perl) | |
112 | exit(1); | |
642f9deb | 113 | perl_construct(my_perl); |
3280af22 | 114 | PL_perl_destruct_level = 0; |
a0d0e21e | 115 | } |
31d77e54 | 116 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
642f9deb | 117 | exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL); |
8815fa0e | 118 | if (!exitstatus) |
31d77e54 | 119 | perl_run(my_perl); |
22f43f2c | 120 | |
01be0729 JW |
121 | /* Unregister our signal handler before destroying my_perl */ |
122 | for (i = 0; PL_sig_name[i]; i++) { | |
123 | if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) { | |
124 | rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL); | |
125 | } | |
126 | } | |
127 | ||
8815fa0e | 128 | exitstatus = perl_destruct(my_perl); |
2304df62 | 129 | |
642f9deb | 130 | perl_free(my_perl); |
2304df62 | 131 | |
2f3efc97 | 132 | #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN) |
22f43f2c MHM |
133 | /* |
134 | * The old environment may have been freed by perl_free() | |
135 | * when PERL_TRACK_MEMPOOL is defined, but without having | |
136 | * been restored by perl_destruct() before (this is only | |
137 | * done if destruct_level > 0). | |
138 | * | |
139 | * It is important to have a valid environment for atexit() | |
140 | * routines that are eventually called. | |
141 | */ | |
142 | environ = env; | |
143 | #endif | |
144 | ||
27da23d5 JH |
145 | #ifdef PERL_GLOBAL_STRUCT |
146 | free_global_struct(plvarsp); | |
147 | #endif /* PERL_GLOBAL_STRUCT */ | |
148 | ||
a91be337 | 149 | PERL_SYS_TERM(); |
150 | ||
642f9deb | 151 | exit(exitstatus); |
4e35701f | 152 | return exitstatus; |
2304df62 AD |
153 | } |
154 | ||
155 | /* Register any extra external extensions */ | |
156 | ||
4633a7c4 LW |
157 | /* Do not delete this line--writemain depends on it */ |
158 | ||
a0d0e21e | 159 | static void |
864dbfa3 | 160 | xs_init(pTHX) |
2304df62 | 161 | { |
96a5add6 | 162 | PERL_UNUSED_CONTEXT; |
642f9deb | 163 | dXSUB_SYS; |
2304df62 | 164 | } |
66610fdd RGS |
165 | |
166 | /* | |
167 | * Local variables: | |
168 | * c-indentation-style: bsd | |
169 | * c-basic-offset: 4 | |
170 | * indent-tabs-mode: t | |
171 | * End: | |
172 | * | |
37442d52 RGS |
173 | * ex: set ts=8 sts=4 sw=4 noet: |
174 | */ |