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 | ||
27da23d5 JH |
45 | #if defined(PERL_GLOBAL_STRUCT_PRIVATE) |
46 | /* The static struct perl_vars* may seem counterproductive since the | |
47 | * whole idea PERL_GLOBAL_STRUCT_PRIVATE was to avoid statics, but note | |
48 | * that this static is not in the shared perl library, the globals PL_Vars | |
49 | * and PL_VarsPtr will stay away. */ | |
50 | static struct perl_vars* my_plvarsp; | |
51 | struct perl_vars* Perl_GetVarsPrivate(void) { return my_plvarsp; } | |
52 | #endif | |
53 | ||
2f3efc97 JH |
54 | #ifdef NO_ENV_ARRAY_IN_MAIN |
55 | extern char **environ; | |
56 | int | |
57 | main(int argc, char **argv) | |
58 | #else | |
c07a80fd | 59 | int |
91487cfc | 60 | main(int argc, char **argv, char **env) |
2f3efc97 | 61 | #endif |
2304df62 | 62 | { |
27da23d5 | 63 | dVAR; |
01be0729 | 64 | int exitstatus, i; |
27da23d5 JH |
65 | #ifdef PERL_GLOBAL_STRUCT |
66 | struct perl_vars *plvarsp = init_global_struct(); | |
67 | # ifdef PERL_GLOBAL_STRUCT_PRIVATE | |
68 | my_vars = my_plvarsp = plvarsp; | |
69 | # endif | |
70 | #endif /* PERL_GLOBAL_STRUCT */ | |
dedb16dc DL |
71 | #ifndef NO_ENV_ARRAY_IN_MAIN |
72 | PERL_UNUSED_ARG(env); | |
73 | #endif | |
50acdf95 | 74 | #ifndef PERL_USE_SAFE_PUTENV |
8bf20623 | 75 | PL_use_safe_putenv = FALSE; |
50acdf95 | 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 | |
01d65469 | 115 | #ifndef PERL_MICRO |
01be0729 | 116 | /* Unregister our signal handler before destroying my_perl */ |
724be0c9 | 117 | for (i = 1; PL_sig_name[i]; i++) { |
01be0729 JW |
118 | if (rsignal_state(PL_sig_num[i]) == (Sighandler_t) PL_csighandlerp) { |
119 | rsignal(PL_sig_num[i], (Sighandler_t) SIG_DFL); | |
120 | } | |
121 | } | |
01d65469 | 122 | #endif |
01be0729 | 123 | |
8815fa0e | 124 | exitstatus = perl_destruct(my_perl); |
2304df62 | 125 | |
642f9deb | 126 | perl_free(my_perl); |
2304df62 | 127 | |
2f3efc97 | 128 | #if defined(USE_ENVIRON_ARRAY) && defined(PERL_TRACK_MEMPOOL) && !defined(NO_ENV_ARRAY_IN_MAIN) |
22f43f2c MHM |
129 | /* |
130 | * The old environment may have been freed by perl_free() | |
131 | * when PERL_TRACK_MEMPOOL is defined, but without having | |
132 | * been restored by perl_destruct() before (this is only | |
133 | * done if destruct_level > 0). | |
134 | * | |
135 | * It is important to have a valid environment for atexit() | |
136 | * routines that are eventually called. | |
137 | */ | |
138 | environ = env; | |
139 | #endif | |
140 | ||
27da23d5 JH |
141 | #ifdef PERL_GLOBAL_STRUCT |
142 | free_global_struct(plvarsp); | |
143 | #endif /* PERL_GLOBAL_STRUCT */ | |
144 | ||
a91be337 | 145 | PERL_SYS_TERM(); |
146 | ||
642f9deb | 147 | exit(exitstatus); |
4e35701f | 148 | return exitstatus; |
2304df62 AD |
149 | } |
150 | ||
151 | /* Register any extra external extensions */ | |
152 | ||
4633a7c4 LW |
153 | /* Do not delete this line--writemain depends on it */ |
154 | ||
a0d0e21e | 155 | static void |
864dbfa3 | 156 | xs_init(pTHX) |
2304df62 | 157 | { |
96a5add6 | 158 | PERL_UNUSED_CONTEXT; |
642f9deb | 159 | dXSUB_SYS; |
2304df62 | 160 | } |
66610fdd RGS |
161 | |
162 | /* | |
163 | * Local variables: | |
164 | * c-indentation-style: bsd | |
165 | * c-basic-offset: 4 | |
14d04a33 | 166 | * indent-tabs-mode: nil |
66610fdd RGS |
167 | * End: |
168 | * | |
14d04a33 | 169 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 170 | */ |