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* Tru64: introduce PERL_SYS_FPU_INIT, use it.Jarkko Hietaniemi2014-09-261-0/+2
| | | | | | | In Tru64 the cc -ieee enables the IEEE math but disables traps. We need to reenable the "invalid" trap because otherwise generation of NaN values leaves the IEEE fp flags in bad state, leaving any further fp ops behaving strangely (Inf + 1 resulting in zero, for example).
* Some low-hanging -Wunreachable-code fruits.Jarkko Hietaniemi2014-06-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | - after return/croak/die/exit, return/break are pointless (break is not a terminator/separator, it's a goto) - after goto, another goto (!) is pointless - in some cases (usually function ends) introduce explicit NOT_REACHED to make the noreturn nature clearer (do not do this everywhere, though, since that would mean adding NOT_REACHED after every croak) - for the added NOT_REACHED also add /* NOTREACHED */ since NOT_REACHED is for gcc (and VC), while the comment is for linters - declaring variables in switch blocks is just too fragile: it kind of works for narrowing the scope (which is nice), but breaks the moment there are initializations for the variables (the initializations will be skipped since the flow will bypass the start of the block); in some easy cases simply hoist the declarations out of the block and move them earlier Note 1: Since after this patch the core is not yet -Wunreachable-code clean, not enabling that via cflags.SH, one needs to -Accflags=... it. Note 2: At least with the older gcc 4.4.7 there are far too many "unreachable code" warnings, which seem to go away with gcc 4.8, maybe better flow control analysis. Therefore, the warning should eventually be enabled only for modernish gccs (what about clang and Intel cc?)
* Revert "Some low-hanging -Wunreachable-code fruits."Jarkko Hietaniemi2014-06-131-0/+1
| | | | | | | This reverts commit 8c2b19724d117cecfa186d044abdbf766372c679. I don't understand - smoke-me came back happy with three separate reports... oh well, some other time.
* Some low-hanging -Wunreachable-code fruits.Jarkko Hietaniemi2014-06-131-1/+0
| | | | | | | | | | | | | | | | | | - after croak/die/exit (or return), break (or return!) are pointless (break is not a terminator/separator, it's a promise of a jump) - after goto, another goto (!) is pointless - in some cases (usually function ends) introduce explicit NOT_REACHED to make the noreturn nature clearer (do not do this everywhere, though, since that would mean adding NOT_REACHED after every croak) - for the added NOT_REACHED also add /* NOTREACHED */ since NOT_REACHED is for gcc (and VC), while the comment is for linters - declaring variables in switch blocks is just too fragile: it kind of works for narrowing the scope (which is nice), but breaks the moment there are initializations for the variables (they will be skipped!); in some easy cases simply hoist the declarations out of the block and move them earlier There are still a few places left.
* my_plvarsp nulling and PERL_GLOBAL_STRUCT_PRIVATEDavid Mitchell2014-04-241-1/+7
| | | | | | | | | | | | | | | | | | | With PERL_GLOBAL_STRUCT_PRIVATE, all "global" vars are in a malloc()d structure pointed to by the static var my_plvarsp. At exit, this struct is freed and my_plvarsp is set to NULL. My previous commit c1181d2b skipped the free if PL_veto_cleanup is set (as it would be if other threads are still running for example), but still left my_plvarsp getting set to NULL. Thus other threads could still deref a null pointer if they accessed a "global" var just as the main thread was exiting. This commit makes the veto skip the NULLing in addition to the freeing. This commit is quite late into the code freeze, but it's a follow-up to the earlier attempt to get smokes not to fail, and all the affected code is within #ifdef PERL_GLOBAL_STRUCT_PRIVATE, so it shouldn't affect mainstream builds at all. (Famous last words.)
* For -DPERL_GLOBAL_STRUCT, eliminate local variable plvarsp in main().Nicholas Clark2013-07-121-4/+3
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* Fix SEGVs and test failures for -DPERL_GLOBAL_STRUCT_PRIVATENicholas Clark2013-07-121-0/+6
| | | | | | | | | | | | | With PERL_GLOBAL_STRUCT_PRIVATE "global" variables are in a structure in malloc()ed memory, not in global static variables or a global static structure. Hence no global variables are implicitly initialised to zero. * PL_curinterp and PL_op_sequence need initialising to NULL * The global structure is free()d before handlers registered with atexit() run, so be defensive about this. * Some C code checks SvOK(PL_sv_placeholder) so ensure that its SvFLAGS() are 0. * Zero PL_hash_seed
* Refactor ExtUtils::Miniperl to use ExtUtils::Embed.Nicholas Clark2013-07-091-2/+1
| | | | | | | | There is now only one copy of Perl code to generate the C for an xsinit() function. This also eliminates ExtUtils::Miniperl::canon(), which was not exported, and is no longer needed.
* Move the "editor block" from miniperlmain.c to ExtUtils::MiniperlNicholas Clark2013-07-071-9/+7
| | | | | | | As miniperlmain.c is now generated by ExtUtils::Miniperl (and not the other way round), there's no reason to have an editor block in the generated file, as it's not intended to be edited. Instead, add the "generated from" and read-only headers to miniperlmain.c
* Clean up ExtUtils::MiniperlNicholas Clark2013-07-071-1/+1
| | | | | | | | | Give it a $VERSION. Bring the joy of strict (and warnings) to it. Inline the C code into writemain() instead of using $head, $tail and a regex to split the $tail into $tail1, $tail2 and $tail3. Tweak the NAME section so that ABSTRACT_FROM parses it. Document the updated functionality of writemain().
* Invert the build logic for miniperlmain.c and ExtUtils::MiniperlNicholas Clark2013-07-071-2/+2
| | | | | | | | | | | | | Now ExtUtils::Miniperl has the master version of {mini,}perlmain.c and is checked into the repository. miniperlmain.c is now generated by a script in regen/ which uses ExtUtils::Miniperl. Tweak ExtUtils::Miniperl::writemain() to take an optional first argument, a reference to a file handle. This permits the regen script to use the regen_lib.pl functions for file opening/closing/renaming and TAP generation. For now check in ExtUtils::Miniperl minimally modified from the version generated by the former minimod.pl. The next commit will tidy it up.
* release the global struct *after* we've finished using itTony Cook2013-01-251-2/+2
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* Remove dead code related to the Atari ST port of perl 4.0 patchlevel 19Nicholas Clark2012-07-281-6/+0
| | | | | The subdirectory containing the port specific files was purged when 5.000 was released, but changes made to other files were not removed.
* do not try to restore state of pseudosignal zeroChip Salzenberg2012-06-221-1/+1
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* update the editor hints for spaces, not tabsRicardo Signes2012-05-291-2/+2
| | | | | This updates the editor hints in our files for Emacs and vim to request that tabs be inserted as spaces.
* Change PL_use_safe_putenv from int to bool.Nicholas Clark2011-06-121-1/+1
| | | | | It is only ever checked for truth/falsehood, and all assignments to it (in core and on CPAN) are either 0 or 1.
* Microperl doesn't do signal handlers, ifdef some handling codeDavid Leadbeater2011-03-281-0/+2
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* [perl #81500] Make compilation work when NO_ENV_ARRAY_IN_MAIN is definedDavid Leadbeater2011-01-021-1/+3
| | | | | | This is only normally defined if OEMVS is defined; the commit that added it (2f3efc97) claims z/OS support. I guess no-one has tried this for awhile as dd374669 broke this in 2005.
* Remove the port to MiNT. It's a dead platform that hasn't had any love ↵Jesse Vincent2009-08-031-1/+1
| | | | since 5.005
* main: Unregister signal handler before destroying my_perlJohn Wright2009-06-071-1/+8
| | | | | | | | If the signal handler runs after perl_destruct() has been called, it will get an invalid (or NULL) my_perl when it asks for the thread-specific interpreter struct. This patch resets the signal handler for any signal previously handled by PL_csighandlerp to SIG_DFL before calling perl_destruct().
* PATCH: Large omnibus patch to clean up the JRRT quotesTom Christiansen2008-11-021-1/+5
| | | | | | Message-ID: <25940.1225611819@chthon> Date: Sun, 02 Nov 2008 01:43:39 -0600 p4raw-id: //depot/perl@34698
* Fix up copyright years for files modified in 2007.Nicholas Clark2007-11-071-1/+1
| | | p4raw-id: //depot/perl@32237
* Update copyright years in .c filesRafael Garcia-Suarez2007-01-051-1/+1
| | | p4raw-id: //depot/perl@29696
* z/OS: non-CPAN ext and lib + main() without the third arg + Stephen ↵Jarkko Hietaniemi2006-07-131-1/+11
| | | | | | | McCamant's comment Message-ID: <44B67921.6090901@iki.fi> p4raw-id: //depot/perl@28567
* PERL_TRACK_MEMPOOL cripples environment after exit()Marcus Holland-Moritz2006-02-271-1/+14
| | | | | Message-ID: <20060226204721.00be2bff@r2d2> p4raw-id: //depot/perl@27343
* unused context warningsAndy Lester2006-02-241-0/+1
| | | | | Message-ID: <20060221062711.GA16160@petdance.com> p4raw-id: //depot/perl@27300
* Include vim/emacs modelines in generated files to open themRafael Garcia-Suarez2005-05-111-2/+2
| | | | | | in read-only mode. Make vi modelines compatible with non-vim vi versions. p4raw-id: //depot/perl@24445
* Add editor boilerplates to all C filesRafael Garcia-Suarez2005-05-101-0/+10
| | | | | (except the generated ones) p4raw-id: //depot/perl@24440
* Symbian port of PerlJarkko Hietaniemi2005-04-211-12/+20
| | | | | Message-ID: <B356D8F434D20B40A8CEDAEC305A1F2453D653@esebe105.NOE.Nokia.com> p4raw-id: //depot/perl@24271
* Update copyrights.Rafael Garcia-Suarez2005-03-301-1/+1
| | | p4raw-id: //depot/perl@24106
* Consting fiveAndy Lester2005-03-251-0/+1
| | | | | | | | Message-ID: <20050325231409.GB17660@petdance.com> [with modification - the extra argument to incpush was supposed to be being used] p4raw-id: //depot/perl@24081
* Update copyright years.Nicholas Clark2005-01-041-2/+2
| | | p4raw-id: //depot/perl@23746
* SuSE's perl safe_putenf diffMichael Schroeder2004-11-171-0/+3
| | | | | | | | | Message-ID: <20041111145443.GA1854@immd4.informatik.uni-erlangen.de> slightly reworked to make the PL_use_safe_putenv variable fit in the current framework. This patch turns on the use of safe putenv for any application that embeds a perl interpreter. p4raw-id: //depot/perl@23507
* more typo fixes for change 3176 (comments at top of .c files)Dave Mitchell2004-08-031-2/+2
| | | p4raw-id: //depot/perl@23187
* Add comment to top of reentr.c and fix typos in other filesDave Mitchell2004-08-011-2/+2
| | | p4raw-id: //depot/perl@23180
* Add comment to the top of most .c files explaining their purposeDave Mitchell2004-07-311-0/+9
| | | p4raw-id: //depot/perl@23176
* Move the PL_earlytaint initialization to the PERL_SYS_INIT()Jarkko Hietaniemi2003-06-291-3/+0
| | | | | as per suggestion from Sarathy. p4raw-id: //depot/perl@19878
* Introduce (global) variable PL_earlytaint whichJarkko Hietaniemi2003-06-271-0/+3
| | | | | | | is set very early in main(), before perl_parse() has been called and PL_tainting (or PL_taint_warn) might have been set. p4raw-id: //depot/perl@19863
* Fix up Larry's copyright statements to my best knowledge.Jarkko Hietaniemi2003-04-161-1/+2
| | | | | | | (Lots of Perl 5 source code archaeology was involved.) Larry didn't make strangled noises when I showed him the patch, either :-) p4raw-id: //depot/perl@19242
* Reverse copyright update (#18801) for files not changed in 2003.Hugo van der Sanden2003-03-021-1/+1
| | | p4raw-id: //depot/perl@18807
* Update all copyrights to 2003, from JarkkoHugo van der Sanden2003-03-021-1/+1
| | | p4raw-id: //depot/perl@18801
* Happy chainsaw stories; The removal of the 5005 threadsH.Merijn Brand2002-10-191-1/+1
| | | | | Still imcomplete. Configure will follow p4raw-id: //depot/perl@18030
* Sprinkle some copyrights (use the oldest timestamp toJarkko Hietaniemi2002-01-241-0/+9
| | | | | | be found in the repository, which is most often not right, but at least consistent) p4raw-id: //depot/perl@14400
* Oh, bother. In Tru64 cc -std1 was looking rather niceJarkko Hietaniemi2001-10-171-13/+2
| | | | | | | | | | in speed (upto 20% speedup in certain operations) but meanwhile regexps and arithmetics got slower (5-10%) (according to perlbench average speedup is negligible, and within measuring flutter, 1%). Therefore retracting all the changes aimed at getting -std1 to compile cleanly: #12475, #12476, #12479, #12480, #12481, #12482, #12483, #12484. p4raw-id: //depot/perl@12485
* (retracted by #12485)Jarkko Hietaniemi2001-10-171-2/+13
| | | | | | Strict ANSI doesn't like the third argument of main() so enable ignoring it if using ultra picky compiler. p4raw-id: //depot/perl@12484
* END{} can change the return value even if we die from BEGIN{}Artur Bergman2001-08-291-5/+3
| | | p4raw-id: //depot/perl@11783
* Changes USE_THREADS to USE_5005THREADS in the entire source.Artur Bergman2001-08-271-1/+1
| | | | | | Thanks to H. Merijn Brand for the patch. Some of the comments and or guards might be removable in perl.h now. p4raw-id: //depot/perl@11758
* Adds PERL_EXIT_DESTRUCT_END to PL_exit_flags which if set moves END block ↵Artur Bergman2001-08-171-5/+4
| | | | | running to perl_destruct, changes prototype of perl_destruct to return exitstatus. p4raw-id: //depot/perl@11702
* SV: END {} blocks run in perl_runArthur Bergman2001-08-121-1/+4
| | | | | Message-ID: <03fd01c122b5$c803c600$052aa8c0@foo> p4raw-id: //depot/perl@11647
* Make perl fork()-safe (in a slightly limited way) even onGurusamy Sarathy2001-07-201-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | platforms that don't have pthread_atfork() (extension of the fix in change#11151). Note that this will not help extensions that call fork() directly in C, or that link to libraries that call fork() directly. Such cases must be fixed to either call PerlProc_fork(), or call atfork_lock() in parent before the calling the function that forks and call atfork_unlock() in both parent and child immediately after the fork(). (There are no worries if C code calls exec() in the child immediately after a fork(). Only cases where the child calls perl's API functions (including New()) after the fork() are problematic.) This change also eliminates the use of vfork() from perl, since all such uses were violating the severe restrictions on modifying the state of the process between the vfork() and the exec(). This is a modified version of patches suggested by Abhijit Menon-Sen and Richard Soderberg. p4raw-link: @11151 on //depot/perl: 50dd6e574ff39b609595ddb16b2fe9f625a26f8c p4raw-id: //depot/perl@11423
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