/*
=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! */
#if defined(USE_ITHREADS)
PERLVAR(G, op_mutex, perl_mutex) /* Mutex for op refcounting */
#endif
-PERLVAR(G, curinterp, PerlInterpreter *)
+PERLVARI(G, curinterp, PerlInterpreter *, NULL)
/* currently running interpreter
* (initial parent interpreter under
* useithreads) */
#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 */
+
+#endif
+
+/* Proxy for HAS_POSIX_2008_LOCALE, since that is not defined in time for this */
+#if defined(HAS_NEWLOCALE) && ! defined(NO_POSIX_2008_LOCALE)
+PERLVAR(G, C_locale_obj, locale_t)
#endif
#ifdef DEBUGGING
-PERLVAR(G, watch_pvx, char *)
+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 */
handle keywords, and only the last function in the chain (built into
the Perl core) will normally return C<KEYWORD_PLUGIN_DECLINE>.
+For thread safety, modules should not set this variable directly.
+Instead, use the function L</wrap_keyword_plugin>.
+
=cut
*/
+#if defined(USE_ITHREADS)
+PERLVAR(G, keyword_plugin_mutex, perl_mutex) /* Mutex for PL_keyword_plugin */
+#endif
PERLVARI(G, keyword_plugin, Perl_keyword_plugin_t, Perl_keyword_plugin_standard)
-PERLVAR(G, op_sequence, HV *) /* dump.c */
+PERLVARI(G, op_sequence, HV *, NULL) /* dump.c */
PERLVARI(G, op_seq, UV, 0) /* dump.c */
#ifdef USE_ITHREADS
#endif
/* Restricted hashes placeholder value.
- * The contents are never used, only the address. */
+ 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 */
+#if defined(PERL_HASH_STATE_BYTES)
+PERLVARA(G, hash_state, PERL_HASH_STATE_BYTES, unsigned char) /* perl.c and hv.h */
+#endif
+#if defined(PERL_USE_SINGLE_CHAR_HASH_CACHE)
+PERLVARA(G, hash_chars, (1+256) * sizeof(U32), unsigned char) /* perl.c and hv.h */
+#endif
+
+/* 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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