FM / CORE

/usr/lib64/perl5/CORE

Name	Size	Mode	Actions
av.h	3320	0644	edit dl rm
bitcount.h	850	0644	edit dl rm
charclass_invlists.h	972477	0644	edit dl rm
config.h	167583	0644	edit dl rm
cop.h	39536	0644	edit dl rm
cv.h	12042	0644	edit dl rm
dosish.h	5501	0644	edit dl rm
dquote_inline.h	1843	0644	edit dl rm
ebcdic_tables.h	29856	0644	edit dl rm
embed.h	97351	0644	edit dl rm
embedvar.h	18910	0644	edit dl rm
EXTERN.h	1714	0644	edit dl rm
fakesdio.h	3211	0644	edit dl rm
feature.h	4915	0644	edit dl rm
form.h	1463	0644	edit dl rm
git_version.h	357	0644	edit dl rm
gv.h	10711	0644	edit dl rm
handy.h	123349	0644	edit dl rm
hv.h	25571	0644	edit dl rm
hv_func.h	13413	0644	edit dl rm
inline.h	46484	0644	edit dl rm
INTERN.h	1271	0644	edit dl rm
intrpvar.h	29477	0644	edit dl rm
invlist_inline.h	2750	0644	edit dl rm
iperlsys.h	48806	0644	edit dl rm
keywords.h	6587	0644	edit dl rm
l1_char_class_tab.h	126918	0644	edit dl rm
libperl.so	2181144	0755	edit dl rm
malloc_ctl.h	1512	0644	edit dl rm
metaconfig.h	674	0644	edit dl rm
mg.h	3013	0644	edit dl rm
mg_data.h	4924	0644	edit dl rm
mg_raw.h	4257	0644	edit dl rm
mg_vtable.h	9336	0644	edit dl rm
mydtrace.h	1693	0644	edit dl rm
nostdio.h	3392	0644	edit dl rm
op.h	36419	0644	edit dl rm
opcode.h	91887	0644	edit dl rm
opnames.h	8836	0644	edit dl rm
op_reg_common.h	5911	0644	edit dl rm
overload.h	3276	0644	edit dl rm
pad.h	17246	0644	edit dl rm
parser.h	6914	0644	edit dl rm
patchlevel.h	9936	0644	edit dl rm
perl.h	243237	0644	edit dl rm
perlapi.h	5863	0644	edit dl rm
perldtrace.h	3301	0644	edit dl rm
perlio.h	9464	0644	edit dl rm
perliol.h	13761	0644	edit dl rm
perlsdio.h	527	0644	edit dl rm
perlvars.h	9690	0644	edit dl rm
perly.h	4371	0644	edit dl rm
pp.h	27577	0644	edit dl rm
pp_proto.h	12086	0644	edit dl rm
proto.h	246762	0644	edit dl rm
reentr.h	78270	0644	edit dl rm
regcharclass.h	144582	0644	edit dl rm
regcomp.h	47796	0644	edit dl rm
regexp.h	34379	0644	edit dl rm
regnodes.h	35834	0644	edit dl rm
scope.h	11905	0644	edit dl rm
sv.h	84256	0644	edit dl rm
thread.h	12013	0644	edit dl rm
time64.h	1576	0644	edit dl rm
time64_config.h	2030	0644	edit dl rm
uconfig.h	167129	0644	edit dl rm
unicode_constants.h	7990	0644	edit dl rm
unixish.h	5107	0644	edit dl rm
utf8.h	59111	0644	edit dl rm
utfebcdic.h	67302	0644	edit dl rm
util.h	9600	0644	edit dl rm
uudmap.h	904	0644	edit dl rm
vutil.h	7467	0644	edit dl rm
warnings.h	7816	0644	edit dl rm
XSUB.h	24447	0644	edit dl rm

Edit: /usr/lib64/perl5/CORE/perlvars.h (9690B)

/*    perlvars.h
 *
 *    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
 *    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.
 *
 */

/*
=head1 Global Variables
These variables are global to an entire process.  They are shared between
all interpreters and all threads in a process.  Any variables not documented
here may be changed or removed without notice, so don't use them!
If you feel you really do need to use an unlisted variable, first send email to
L<perl5-porters@perl.org|mailto:perl5-porters@perl.org>.  It may be that
someone there will point out a way to accomplish what you need without using an
internal variable.  But if not, you should get a go-ahead to document and then
use the variable.

=cut
*/

/* Don't forget to re-run regen/embed.pl to propagate changes! */

/* This file describes the "global" variables used by perl
 * This used to be in perl.h directly but we want to abstract out into
 * distinct files which are per-thread, per-interpreter or really global,
 * and how they're initialized.
 *
 * The 'G' prefix is only needed for vars that need appropriate #defines
 * generated in embed*.h.  Such symbols are also used to generate
 * the appropriate export list for win32. */

/* global state */
#if defined(USE_ITHREADS)
PERLVAR(G, op_mutex,	perl_mutex)	/* Mutex for op refcounting */
#endif
PERLVARI(G, curinterp,	PerlInterpreter *, NULL)
					/* currently running interpreter
					 * (initial parent interpreter under
					 * useithreads) */
#if defined(USE_ITHREADS)
PERLVAR(G, thr_key,	perl_key)	/* key to retrieve per-thread struct */
#endif

/* XXX does anyone even use this? */
PERLVARI(G, do_undump,	bool,	FALSE)	/* -u or dump seen? */

#ifndef PERL_USE_SAFE_PUTENV
PERLVARI(G, use_safe_putenv, bool, TRUE)
#endif

#if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS)||defined(FAKE_DEFAULT_SIGNAL_HANDLERS)
PERLVARI(G, sig_handlers_initted, int, 0)
#endif
#ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS
PERLVARA(G, sig_ignoring, SIG_SIZE, int)
					/* which signals we are ignoring */
#endif
#ifdef FAKE_DEFAULT_SIGNAL_HANDLERS
PERLVARA(G, sig_defaulting, SIG_SIZE, int)
#endif

/* XXX signals are process-wide anyway, so we
 * ignore the implications of this for threading */
#ifndef HAS_SIGACTION
PERLVARI(G, sig_trapped, int,	0)
#endif

#ifndef PERL_MICRO
/* If Perl has to ignore SIGPFE, this is its saved state.
 * See perl.h macros PERL_FPU_INIT and PERL_FPU_{PRE,POST}_EXEC. */
PERLVAR(G, sigfpe_saved, Sighandler_t)
PERLVARI(G, csighandlerp, Sighandler_t, Perl_csighandler)
					/* Pointer to C-level sighandler */
#endif

/* This is constant on most architectures, a global on OS/2 */
#ifdef OS2
PERLVARI(G, sh_path,	char *, SH_PATH) /* full path of shell */
#endif

#ifdef USE_PERLIO

#  if defined(USE_ITHREADS)
PERLVAR(G, perlio_mutex, perl_mutex)    /* Mutex for perlio fd refcounts */
#  endif

PERLVARI(G, perlio_fd_refcnt, int *, 0) /* Pointer to array of fd refcounts.  */
PERLVARI(G, perlio_fd_refcnt_size, int, 0) /* Size of the array */
PERLVARI(G, perlio_debug_fd, int, 0)	/* the fd to write perlio debug into, 0 means not set yet */
#endif

#ifdef HAS_MMAP
PERLVARI(G, mmap_page_size, IV, 0)
#endif

#if defined(USE_ITHREADS)
PERLVAR(G, hints_mutex, perl_mutex)    /* Mutex for refcounted he refcounting */
PERLVAR(G, locale_mutex, perl_mutex)   /* Mutex for setlocale() changing */

#   ifdef HAS_NEWLOCALE
PERLVAR(G, C_locale_obj, locale_t)
#   endif

#endif

#ifdef DEBUGGING
PERLVARI(G, watch_pvx,	char *, NULL)
#endif

/*
=for apidoc AmU|Perl_check_t *|PL_check

Array, indexed by opcode, of functions that will be called for the "check"
phase of optree building during compilation of Perl code.  For most (but
not all) types of op, once the op has been initially built and populated
with child ops it will be filtered through the check function referenced
by the appropriate element of this array.  The new op is passed in as the
sole argument to the check function, and the check function returns the
completed op.  The check function may (as the name suggests) check the op
for validity and signal errors.  It may also initialise or modify parts of
the ops, or perform more radical surgery such as adding or removing child
ops, or even throw the op away and return a different op in its place.

This array of function pointers is a convenient place to hook into the
compilation process.  An XS module can put its own custom check function
in place of any of the standard ones, to influence the compilation of a
particular type of op.  However, a custom check function must never fully
replace a standard check function (or even a custom check function from
another module).  A module modifying checking must instead B<wrap> the
preexisting check function.  A custom check function must be selective
about when to apply its custom behaviour.  In the usual case where
it decides not to do anything special with an op, it must chain the
preexisting op function.  Check functions are thus linked in a chain,
with the core's base checker at the end.

For thread safety, modules should not write directly to this array.
Instead, use the function L</wrap_op_checker>.

=cut
*/

#if defined(USE_ITHREADS)
PERLVAR(G, check_mutex,	perl_mutex)	/* Mutex for PL_check */
#endif
#ifdef PERL_GLOBAL_STRUCT 
PERLVAR(G, ppaddr,	Perl_ppaddr_t *) /* or opcode.h */
PERLVAR(G, check,	Perl_check_t *) /* or opcode.h */
PERLVARA(G, fold_locale, 256, unsigned char) /* or perl.h */
#endif

#ifdef PERL_NEED_APPCTX
PERLVAR(G, appctx,	void*)		/* the application context */
#endif

#if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE)
PERLVAR(G, timesbase,	struct tms)
#endif

/* allocate a unique index to every module that calls MY_CXT_INIT */

#ifdef PERL_IMPLICIT_CONTEXT
# ifdef USE_ITHREADS
PERLVAR(G, my_ctx_mutex, perl_mutex)
# endif
PERLVARI(G, my_cxt_index, int,	0)
#endif

/* this is currently set without MUTEX protection, so keep it a type which
 * can be set atomically (ie not a bit field) */
PERLVARI(G, veto_cleanup, int, FALSE)	/* exit without cleanup */

/*
=for apidoc AmUx|Perl_keyword_plugin_t|PL_keyword_plugin

Function pointer, pointing at a function used to handle extended keywords.
The function should be declared as

int keyword_plugin_function(pTHX_
		char *keyword_ptr, STRLEN keyword_len,
		OP **op_ptr)

The function is called from the tokeniser, whenever a possible keyword
is seen.  C<keyword_ptr> points at the word in the parser's input
buffer, and C<keyword_len> gives its length; it is not null-terminated.
The function is expected to examine the word, and possibly other state
such as L<%^H|perlvar/%^H>, to decide whether it wants to handle it
as an extended keyword.  If it does not, the function should return
C<KEYWORD_PLUGIN_DECLINE>, and the normal parser process will continue.

If the function wants to handle the keyword, it first must
parse anything following the keyword that is part of the syntax
introduced by the keyword.  See L</Lexer interface> for details.

When a keyword is being handled, the plugin function must build
a tree of C<OP> structures, representing the code that was parsed.
The root of the tree must be stored in C<*op_ptr>.  The function then
returns a constant indicating the syntactic role of the construct that
it has parsed: C<KEYWORD_PLUGIN_STMT> if it is a complete statement, or
C<KEYWORD_PLUGIN_EXPR> if it is an expression.  Note that a statement
construct cannot be used inside an expression (except via C<do BLOCK>
and similar), and an expression is not a complete statement (it requires
at least a terminating semicolon).

When a keyword is handled, the plugin function may also have
(compile-time) side effects.  It may modify C<%^H>, define functions, and
so on.  Typically, if side effects are the main purpose of a handler,
it does not wish to generate any ops to be included in the normal
compilation.  In this case it is still required to supply an op tree,
but it suffices to generate a single null op.

That's how the C<*PL_keyword_plugin> function needs to behave overall.
Conventionally, however, one does not completely replace the existing
handler function.  Instead, take a copy of C<PL_keyword_plugin> before
assigning your own function pointer to it.  Your handler function should
look for keywords that it is interested in and handle those.  Where it
is not interested, it should call the saved plugin function, passing on
the arguments it received.  Thus C<PL_keyword_plugin> actually points
at a chain of handler functions, all of which have an opportunity to
handle keywords, and only the last function in the chain (built into
the Perl core) will normally return C<KEYWORD_PLUGIN_DECLINE>.

=cut
*/

PERLVARI(G, keyword_plugin, Perl_keyword_plugin_t, Perl_keyword_plugin_standard)

PERLVARI(G, op_sequence, HV *, NULL)	/* dump.c */
PERLVARI(G, op_seq,	UV,	0)	/* dump.c */

#ifdef USE_ITHREADS
PERLVAR(G, dollarzero_mutex, perl_mutex) /* Modifying $0 */
#endif

/* Restricted hashes placeholder value.
   In theory, the contents are never used, only the address.
   In practice, &PL_sv_placeholder is returned by some APIs, and the calling
   code is checking SvOK().  */

PERLVAR(G, sv_placeholder, SV)

#if defined(MYMALLOC) && defined(USE_ITHREADS)
PERLVAR(G, malloc_mutex, perl_mutex)	/* Mutex for malloc */
#endif

PERLVARI(G, hash_seed_set, bool, FALSE)	/* perl.c */
PERLVARA(G, hash_seed, PERL_HASH_SEED_BYTES, unsigned char) /* perl.c and hv.h */

/* The path separator can vary depending on whether we're running under DCL or
 * a Unix shell.
 */
#ifdef __VMS
PERLVAR(G, perllib_sep, char)
#endif

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