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B-C-1.43
River stage zero No dependents
22 ++

Changes for version 1.43 - 2014-01-15

  • new 5.16, and partial 5.18, 5.20 and windows support. Many more fixes and testcases. Bytecode is still broken on 5.18, esp non-threaded. 5.20 looks pretty good though.
  • C: Fix -u<module> without file extension. With hek do not drop FAKE, only for const pv. Fixed $$ ($PID) to be dynamic, issue 108. Thanks to flexvault for reporting this. Fixed double precision to 16 digits. The nbody shootout test passes now. Fixed refcounts of *ENV, issue 111. Fixed wrong boot_ arg for the xs version check with --staticxs Better fix for overwriting of @ARGV <O3, test c_argv:1 and c_allow_opts.t:1 Fixed refinition warnings of XS CONSTSUB. Ignore them as they are loaded later. Add $dlmodule::VERSION as 2nd arg to boot_$dlmodule resp. $dlmodule::bootstrap to get rid of the pesky Invalid version format error in xs_version_bootcheck if the $VERSION had already version magic attached. (no testcase, hard to repro) perl 5.16.0 shipped a slightly broken B without cop_stashlen. As workaround we do not support utf8 stashes nor null bytes in stashes on 5.16.0 threaded. Fixed Null COP storage for 5.16 and 5.17 Fix amagic_generation which was removed with 5.17 Fix ALLOW_PERL_OPTIONS: add -e behind all processed options, not before Fixed HvAUX init. Previously only with magic hashes, now on all OOK hashes (OOK+SHAREKEYS) e.g. %warning::Bits Added support for new PADLIST type since 5.17.4 (with xpadl_id) and 5.17.6 (without) $^X returns now the real executable name, not just perl or perl.exe Adjust COW string lengths to hold the COW_REFCNT byte at the end Fix unicode string CUR and LEN (#142, #162) Fix unicode hashkeys (HEK) mostly (#200), but not yet testc.sh 2001 (compile-time stored utf8 heks) Save HvTOTALKEYS at run-time as max added to the number of run-time added keys (#178) Fix UV uvuformat on 32bit -Duse64bitint (#145) op_pmreplstart is now run-time initialized >= 5.10 (#160) Fixed special usage of magic vars @-,@+,%+,$-,$! (#90) Fixed wrong REGEXP length for compiled QR data (#143) Fixed wrong -O3 comparison of strings to numbers (#138,#141, branch new-cog), unified PV handling, disabled -fcog replaced by -O3 -fconst-strings Fixed NUL-byte handling in strings by using B::SV->PV instead of PVX (#237) Storing now bareword filehandles (#148,#149) Do not create GvGP at all. This also removes the need for newGP() (Windows/AIX) use Config does not include B anymore, Internals::V now in __ANON__ package Fixed handling of empty - not successfully autoloaded - CVs (#235, #159, ...) by storing the SV and XPVCV but ignoring it and defer to run-time get_cv() Unify handling of static and dynamic strings, use ptr_undef throughout instead of NULL vs &PL_sv_undef (save_pv_or_rv => savesym, cur, len, pv, static) Restore $^H, the numeric value of global warnings flags (#193,#207,#243) Restore more missing globals: ${^UNICODE} ${^UTF8LOCALE} $; $\ $, $/ $" $| $^A $^L $: $^H $^R $% $- $= if set in a BEGIN block or via cmdline (#256,#231) Restore even deprecated vars $] $# $* (#171) Fix HvAUX memory corruption, accessing HvAUX beyond HE fields, esp. with threaded perls. Initialize now HvAUX backref and mro_meta fields. Do not boot internal core XS packages twice, refer to internal XS functions dynamically and do not link to them. Fixes fix Windows/AIX with strict linking. Defer dynaloaded GvCV initialization after dl_init() Fixed storage of non-special lexical warnings (#258 warnsize-i258) Fixed storage of shared heks, support IsCOW_hek (i.e. method names) Support new ReANY since 5.17.6 (#258 reg_temp_copy) Support stash symtab magic for PMf_ONCE m?? and reset (#188) Fixed POSIX overflow constants warnings for DBL_MAX,DBL_MIN,LONG_MIN,LONG_MAX (#262) Support user-defined static_ext modules, which are already booted from core. Add more DynaLoader::dl_debug output (set PERL_DL_DEBUG=1) Enforce -ffold on an ucfirst op or $INC{'unicore/To/Title.pl'} (#242) Mark empty but overloaded packages (#172). This is merely workaround for reduced testcases. Set PadnamelistMAXNAMED(comppad_name) needed since 5.19.3 for eval string (#268) Add new option -fno-delete-pkg to control if to ignore compiler-only dependent packages, compiler-independent packages are now always saved. Save those package names at Makefile.PL in @B::C::Flags::deps.
  • perlcc (2.14): new option --dryrun, -v5 does not -Dsp,-v new option -f passthru to C and CC
  • perlcc (2.15): fixed default --spawn: use waitpid which was broken for parallel builds. fixed warning Prototype mismatch: sub main::gettimeofday: none vs () at perlcc line 261 improved --version added --perlopts to handle -DALLOW_PERL_OPTIONS
  • perlcc (2.16): changed output name rules: Without given output file name we use the name of the input file (in the subdir) or with -e a.out resp. a.exe and a randomized intermediate C filename. If the input file is an absolute path on non-windows systems use the basename.
  • CC (1.13): Use the B::C integer and double precision logic (ivx, nvx). Fixed double precision to 16 digits. The nbody shootout is now 2x faster than perl. Added optimizations: -fno-magic, -fno-autovivify, -faelem Detect "no autovivification;" pragma. New -fno-taint, -fomit_taint is deprecated Fix amagic_generation which was removed with 5.17 Use new perl6 type names: int, num, str. double and string are deprecated.
  • Bytecode (1.14): fixed require and op_first, issue 97 Fixed regex_pad offset in threaded perls >= 5.11, issue 68. New type B::PAD isa B::AV (PADLIST for 5.17.5), New bytecodes newpadlx, padl_name, padl_sym (PADLIST for 5.17.5) Fixed CvGV_set causing Attempt to free unreferenced scalar in push_begin (42,43) Fixed -Do (peek ops) Renamed option -f to -F for files. Fixed READONLY magic and restricted hashes, issue 98 Support IsCOW xpvshared strings (>=5.18) Fixed wrong xpvshared logic (5.10-5.17), issue 138 Optimized away 0=default op and gp flags and pointers Optimized away default sv_refcnt=1 (GV not), and skip redundant bytecodes Set PadnamelistMAXNAMED(comppad_name) needed since 5.19.3 for eval string (#268)
  • ByteLoader (0.10): set sv_refcnt to 1 in newsv to skip most defaults
  • Assembler (1.11): allow "newpadlx 0"
  • Disassembler (1.12): use B::Concise op_flags and private_flags
  • Stash (1.03): fix compilation for 5.8.8 and below: gv_fetchsv missing
  • t/perldoc.t: perlcc fails with 5.8 because Cwd disturbs the fragile method package finder for File::Spec. Use cc_harness.

Documentation

BcVersions
ByteLoader bytecode versions
B::Asmdata
Autogenerated data about Perl ops, used to generate bytecode
perlcompile
Introduction to the Perl Compiler-Translator
perloptree
The Perl op tree
ramblings::frozenperl_2010
yapc_bratislava08
Need help with the perl compiler, emit C or JIT, blabla
ramblings::yapceu_2010
assemble
Assemble Perl bytecode
disassemble
perlcc
generate executables from Perl programs

Modules

B::Asm5_005002
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_005003
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_005004
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_005005
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_005008
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_006000
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_006001
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_006001RC1
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_006002
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008000
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008001
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008002
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008003
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008004
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008005
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008006
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008007
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008008
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_008009
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_010000
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_01001
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_012000
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_012001
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_012003
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_014000
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_014001
Autogenerated data about Perl ops, used to generate bytecode
B::Asm5_014002
Autogenerated data about Perl ops, used to generate bytecode
ByteLoader
load byte compiled perl code
B::Stash
show what stashes are loaded
B::Assembler
Assemble Perl bytecode
B::Bblock
Walk basic blocks
B::Bytecode
Perl compiler's bytecode backend
B::C
Perl compiler's C backend
B::CC
Perl compiler's optimized C translation backend
B::Disassembler
Disassemble Perl bytecode
B::Stackobj
Stack and type annotation helper module for the CC backend

Provides

B::C::InitSection
in lib/B/C.pm
B::C::Section
in lib/B/C.pm
B::Disassembler::BytecodeStream
in lib/B/Disassembler.pm
B::FAKEOP
in lib/B/C.pm
B::Pseudoreg
in lib/B/CC.pm
B::STASHGV
in lib/B/C.pm
B::Shadow
in lib/B/CC.pm

Other files