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1 | /* miniperlmain.c |
2 | * |
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3 | * Copyright (C) 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, |
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4 | * 2004, 2005 by Larry Wall and others |
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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 | |
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11 | /* |
12 | * "The Road goes ever on and on, down from the door where it began." |
13 | */ |
14 | |
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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 | * |
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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' |
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21 | * perl executable. |
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22 | */ |
23 | |
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24 | #ifdef OEMVS |
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25 | #ifdef MYMALLOC |
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26 | /* sbrk is limited to first heap segment so make it big */ |
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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 |
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31 | #endif |
32 | |
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33 | |
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34 | #include "EXTERN.h" |
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35 | #define PERL_IN_MINIPERLMAIN_C |
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36 | #include "perl.h" |
37 | |
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38 | static void xs_init (pTHX); |
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39 | static PerlInterpreter *my_perl; |
40 | |
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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 | |
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47 | int |
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48 | main(int argc, char **argv, char **env) |
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49 | { |
50 | int exitstatus; |
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51 | (void)env; |
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52 | #ifndef PERL_USE_SAFE_PUTENV |
53 | PL_use_safe_putenv = 0; |
54 | #endif /* PERL_USE_SAFE_PUTENV */ |
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55 | |
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56 | #ifdef PERL_GLOBAL_STRUCT |
57 | #define PERLVAR(var,type) /**/ |
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58 | #define PERLVARA(var,type) /**/ |
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59 | #define PERLVARI(var,type,init) PL_Vars.var = init; |
60 | #define PERLVARIC(var,type,init) PL_Vars.var = init; |
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61 | #include "perlvars.h" |
62 | #undef PERLVAR |
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63 | #undef PERLVARA |
22239a37 |
64 | #undef PERLVARI |
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65 | #undef PERLVARIC |
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66 | #endif |
67 | |
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68 | /* if user wants control of gprof profiling off by default */ |
69 | /* noop unless Configure is given -Accflags=-DPERL_GPROF_CONTROL */ |
70 | PERL_GPROF_MONCONTROL(0); |
71 | |
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72 | PERL_SYS_INIT3(&argc,&argv,&env); |
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73 | |
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74 | #if defined(USE_ITHREADS) |
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75 | /* XXX Ideally, this should really be happening in perl_alloc() or |
76 | * perl_construct() to keep libperl.a transparently fork()-safe. |
77 | * It is currently done here only because Apache/mod_perl have |
78 | * problems due to lack of a call to cancel pthread_atfork() |
79 | * handlers when shared objects that contain the handlers may |
80 | * be dlclose()d. This forces applications that embed perl to |
81 | * call PTHREAD_ATFORK() explicitly, but if and only if it hasn't |
82 | * been called at least once before in the current process. |
83 | * --GSAR 2001-07-20 */ |
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84 | PTHREAD_ATFORK(Perl_atfork_lock, |
85 | Perl_atfork_unlock, |
86 | Perl_atfork_unlock); |
87 | #endif |
88 | |
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89 | if (!PL_do_undump) { |
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90 | my_perl = perl_alloc(); |
91 | if (!my_perl) |
92 | exit(1); |
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93 | perl_construct(my_perl); |
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94 | PL_perl_destruct_level = 0; |
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95 | } |
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96 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
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97 | exitstatus = perl_parse(my_perl, xs_init, argc, argv, (char **)NULL); |
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98 | if (!exitstatus) |
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99 | perl_run(my_perl); |
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100 | |
101 | exitstatus = perl_destruct(my_perl); |
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102 | |
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103 | perl_free(my_perl); |
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104 | |
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105 | PERL_SYS_TERM(); |
106 | |
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107 | exit(exitstatus); |
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108 | return exitstatus; |
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109 | } |
110 | |
111 | /* Register any extra external extensions */ |
112 | |
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113 | /* Do not delete this line--writemain depends on it */ |
114 | |
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115 | static void |
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116 | xs_init(pTHX) |
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117 | { |
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118 | dXSUB_SYS; |
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119 | } |