perl___ - cannot fork, can dynalink.
The build of the first one - perl - is rather convoluted, and
requires a build of miniperl_.
-after 5.003_05:
- PERLLIB_PREFIX was not active if it matches an element of @INC
- as a whole.
- Do not need PERL_SBRK if crtdll-revision is >= 50.
- Use -Zsmall-conv if crtdll-revision is >= 50 (in static perl!).
-:7: warning: #warning <dirent.h> requires <sys/types.h>
- We compile miniperl static. It cannot fork, thus there may be
- problems with pipes (since HAS_FORK is in
- place). Pipes are required by makemaker.
- We compile perl___.exe A.OUT and dynamic. It should be able to
- fork.
- If we can fork, we my_popen by popen unless "-|". Thus we
- write a cooky "-1" into the pid array to indicate
- this.
- Apparently we can fork, and we can load dynamic extensions
- now, though probably not simultaneously.
- *DB tests corrected for OS/2 one-user stat[2].
- /bin/sh is intercepted and replaced by SH_PATH.
- Note that having '\\' in the command line of one-arg `system'
- would trigger call via shell.
- Segfault with system {'ls'} 'blah'; corrected.
- Documentation of OS/2-different features added to main PODs.
- New buitins in Cwd::
-
- Cwd::current_drive
- Cwd::sys_chdir - leaves drive as it is.
- Cwd::change_drive
- Cwd::sys_is_absolute - has drive letter and is_rooted
- Cwd::sys_is_rooted - has leading [/\\] (maybe
- after a drive)
- Cwd::sys_is_relative - changes with current dir
- Cwd::sys_cwd - Interface to cwd from EMX.
- Cwd::sys_abspath(name, dir)
- - Really really odious
- function. Returns absolute
- name of file which would
- have 'name' if CWD were 'dir'.
- Dir defaults to the current dir.
- Cwd::extLibpath [type] - Get/set current value of extended
- Cwd::extLibpath_set - library search path.
- path [type]
- The optional last argument redirects
- to END-path if true,
- default is to search BEGIN-path.
- (Note that some of these may be moved to different
- libraries - eventually).
- Executables:
- perl - can fork, can dynalink (but not simultaneously)
- perl_ - can fork, cannot dynalink
- perl__ - same as perl___, but PM.
- perl___ - cannot fork, can dynalink.
- The build of the first one - perl - is rather convoluted, and
- requires a build of miniperl_.
after 5.003_07:
custom tmpfile and tmpname which may use $TMP, $TEMP.
after 5.004_01:
flock emulation added (disable by setting env PERL_USE_FLOCK=0),
thanks to Rocco Caputo;
- RSX bug with missing waitpid circomvented;
+ RSX bug with missing waitpid circumvented;
-S bug with full path with \ corrected.
before 5.004_02:
$^E was reset on the second read, and contained ".\r\n" at the end.
after 5.005_53:
+ Would segfault system()ing non-existing program;
+ AOUT build was hosed;
warning-test for getpriority() might lock the system hard on
pre-fixpak22 configuration (calling getpriority() on
non-existing process triggers a system-wide bug).
- Variable $OS2::emx_rev implemented (string and numberic values
+
+ PrfDB was using a bug in processing XSUBs returning U32.
+
+ Variable $OS2::emx_rev implemented (string and numeric values
are the same as C variables _emx_rev and _emx_vprt).
Variable $OS2::emx_env implemented (same as C variable _emx_env).
Variable $OS2::os_ver implemented (_osmajor + 0.001 * _osminor).
it is incremented by the number of messages retrieved.
Dies with "QUITing..." if WM_QUIT message is obtained.
+after 5.005_54:
+ Opening pipes from/to processes could fail if (un)appropriate
+ combination of STDIN/STDOUT was closed.
+
+ If the only shell-metachars of a command are ' 2>&1' at the
+ end of a command, it is executed without calling the external shell.
+
+after 5.005_57:
+ Make UDP sockets return correct caller address (OS2 API bug);
+ Enable TCPIPV4 defines (works with Warp 3 IAK too?!);
+ Force Unix-domain sockets to start with "/socket", convert
+ '/' to '\' in the calls;
+ Make C<system 1, $cmd> to treat $cmd as in C<system $cmd>;
+ Autopatch Configure;
+ Find name and location of g[nu]patch.exe;
+ Autocopy perl????.dll to t/ when testing;
+
+after 5.005_62:
+ Extract a lightweight DLL access module OS2::DLL from OS2::REXX
+ which would not load REXX runtime system;
+ Allow compile with os2.h which loads os2tk.h instead of os2emx.h;
+ Put the version of EMX CRTL into -D define;
+ Use _setsyserror() to store last error of OS/2 API for $^E;
+ New macro PERL_SYS_INIT3(argvp, argcp, envp);
+ Make Dynaloader return info on the failing module after failed dl_open();
+ OS2::REXX test were done for interactive testing (were writing
+ "ok" to stderr);
+ system() and friends return -1 on failure (was 0xFF00);
+ Put the full name of executable into $^X
+ (alas, uppercased - but with /);
+ t/io/fs.t was failing on HPFS386;
+ Remove extra ';' from defines for MQ operations.
+
+pre 5.6.1:
+ Resolved: "Bad free()" messages (e.g., from DB_File) with -Zomf build.
+ The reason was: when an extension DLL was linked, the order of
+ libraries was similar to this:
+ f1.obj f2.obj libperl.lib -llibr1 -llibr2
+ (with C RTL implicitly after this). When libperl.lib overrides
+ some C RTL functions, they are correctly resolved when mentioned
+ in f1.obj and f2.obj. However, the resolution for libr1.lib and
+ libr2.lib is implementation-dependent.
+
+ With -Zomf linking the symbols are resolved for libr1.lib and
+ libr2.lib *only if* they reside in .obj-file-sections of libperl.lib
+ which were already "picked up" for symbols in f1.obj f2.obj.
+ However, libperl.lib is an import library for a .DLL, so *each
+ symbol in libperl.lib sits in its own pseudo-section*!
+
+ Corollary: only those symbol from libperl.lib which were already
+ mentioned in f1.obj f2.obj would be used for libr1.lib and
+ libr2.lib. Example: if f1.obj f2.obj do not mention calloc() but
+ libr1.lib and libr2.lib do, then .lib's will get calloc() of C RTL,
+ not one of libperl.lib.
+
+ Solution: create a small duplicate of libperl.lib with overriding
+ symbols only. Put it *after* -llibr1 -llibr2 on the link line.
+ Map strdup() and putenv() to Perl_strdup() and Perl_putenv()
+ inside this library.
+
+ Resolved: rmdir() and mkdir() do not accept trailing slashes.
+ Wrappers are implemented.
+ Resolved: when loading modules, FP mask may be erroneously changed by
+ _DLLInitTerm() (e.g., TCP32IP).
+ Solutions: a) dlopen() saves/restores the FP mask.
+ b) When starting, reset FP mask to a sane value
+ (if the DLL was compile-time linked).
+ New functions in package OS2:
+ unsigned _control87(unsigned new,unsigned mask) # as in EMX
+ unsigned get_control87()
+ # with default values good for handling exception mask:
+ unsigned set_control87_em(new=MCW_EM,mask=MCW_EM)
+ Needed to guard against other situations when the FP mask is
+ stomped upon. Apparently, IBM used a compiler (for some period
+ of time around '95?) which changes FP mask right and left...
+ Resolved: $^X was always uppercased (cosmetic). Solution:
+ use argv[0] if it differs from what the OS returns only in case.
+ Resolved: when creating PM message queues, WinCancelShutdown() was
+ not called even if the application said that it would not serve
+ messages in this queue. Could result in PM refusing to shutdown.
+
+ Solution: resolve WinCancelShutdown at run time, keep the refcount
+ of who is going to serve the queue.
+ Resolved: Perl_Deregister_MQ() segfaulted (pid/tid not initialized).
+ Resolved: FillWinError() would not fetch the error.
+ Solution: resolve WinGetLastError at run time, call it.
+ Resolved: OS2::REXX would ignore arguments given to a Perl function
+ imported into the REXX compartment via REXX_eval_with().
+ Resolved: OS2::REXX would treat arguments given to a Perl function
+ imported into the REXX compartment via _register() as ASCIIZ
+ strings inside of binary strings.
+ Resolved: OS2::REXX did not document _register().
+ Resolved: OS2::REXX would not report the error to REXX if an error
+ condition appeared during a call to Perl function from REXX
+ compartment. As a result, the return string was not initialized.
+ A complete example of a mini-application added to OS2::REXX.
+ README.os2 updated to reflect the current state of Perl.
+
+pre 5.7.2:
+ aout build: kid bootstrap_* were not associated with XS.
+ bldlevel did not contain enough info.
+ extLibpath* was failing on the call of the second type.
+ Configure defines flushNULL now (EMX -Zomf bug broke autodetection).
+ Configure did not find SIGBREAK.
+ extLibpath supports LIBSTRICT, better error detection.
+ crypt() used if present in -lcrypt or -lufc.
+ dumb getpw*(), getgr*() etc. supported; as in EMX, but if no
+ $ENV{PW_PASSWD}, the passwd field contains a string which
+ cannot be returned by crypt() (for security reasons).
+ The unwound recursion in detecting executable by script was
+ using static buffers. Thus system('pod2text') would fail if the
+ current directory contained an empty file named 'perl'.
+ Put ordinals in the base DLL.
+ Enable EXE-compression.
+ Load time (ms): Without /e:2: 70.6; With /e:2: 75.3; Lxlite: 62.8
+ Size drops from 750K to 627K, with lxlite to 515K.
+ lxlite /c:max gives 488K, but dumps core in t/TEST
+ os2ish.h defines SYSLOG constants ==> Sys::Syslog works.
+ Corrected warnings related to OS/2 code.
+ At one place = was put instead of ==.
+ Setting $^E should work.
+ Force "SYS0dddd=0xbar: " to error messages and to dlerror().
+ ($^E == 2 printed SYS0002 itself, but 110 did not.)
+ $OS2::nsyserror=0 switches off forcing SYSdddd on $^E.
+ perl_.exe does not require PM dlls any more (symbols resolved at
+ runtime on the as needed basis).
+ OS2::Process:
+ get/set: term size; codepages; screen's cursor; screen's contents
+ reliable session name setting;
+ process's parent pid, and the session id;
+ switching to and enumeration of sessions
+ window hierarchy inspection
+ post a message to a window
+ More robust getpriority() on older Warps.
+
+ New C APIs for runtime loading of entry points from DLLs
+ (useful for entry points not present on older versions of
+ OS/2, or with DLLs not present on floppy-boot stripped down
+ setups): CallORD(), DeclFuncByORD(), DeclVoidFuncByORD(),
+ DeclOSFuncByORD(), DeclWinFuncByORD(), AssignFuncPByORD().
+
+pre 5.7.3:
+ Testing with PERL_TEST_NOVREXX=1 in environment makes tests
+ noninteractive (VREXX test requires pressing a button on a dialog).
+
+ New (ugly and voodooish) hack to work around a bug in EMX
+ runtime architecture:
+
+ EMX.DLL is *not* initialized from its _DLL_InitTerm()
+ routine, but the initialization is postponed until
+ immediately before main() is called by the principal
+ executable (may be the initialization also happens during
+ InitTerm of -Zso -Zsys DLLs?). The only reason I can see is
+ to postpone the initialization until the "layout" structure
+ is available, so the type of the executable is known.
+ [Instead, one should have broken the initialization into two
+ steps, with no-layout-known initialization ASAP, and the
+ finishing touch done when "layout" is known.]
+
+ It is due to this hack that -Zsys, -Zso etc. are needed so
+ often.
+
+ If during initialization of the Perl runtime environment we
+ discover that EMX environment is not set up completely, this
+ can be because of either our DLL being called from an
+ uncompatible flavor of EMX executable, or from an
+ unrelated-to-EMX.DLL (e.g., -Zsys or compiled with a
+ different compiler) executable. In the first case only the
+ CRTL is not completely initialized, in the other case
+ EMX.DLL may be not initialized too.
+
+ We detect which of these two situations takes place, then
+ explicitly call the initialization entry points of EMX.DLL
+ and of CRT. The large caveat is that the init-entry point
+ of EMX.DLL also moves the stack pointer (another defect of
+ EMX architecture, the init() and
+ set_exception_handlers_on_stack() entry points should have
+ been separated). Thus we need some inline-assembler to
+ compensate for this, and need to remove the installed
+ exception handler - it is useless anyway, since exception
+ handlers need to be on the stack. [This one is on the
+ stack, but will be overwritten on exit from the function.]
+
+ We also install an extra hack to run our atexit() handlers
+ on termination of the process (since the principal
+ executable does not know about *this* CRTL, we need to do it
+ ourselves - and longjmp() out of the chain of exception
+ handlers at a proper moment :-().
+
+ The net result: Perl DLL can be now used with an arbitrary
+ application. PERLREXX DLL is provided which makes Perl usable
+ from any REXX-enabled application.
+
+ New test targets added to test how well Perl DLL runs with
+ different flavors of executables (see all_harness etc). To
+ avoid waiting for the user button press, run with env
+ PERL_TEST_NOVREXX=1.
+
+ Another hack: on init of Perl runtime environment, the
+ executable is tested for being an aout EMX executable. The
+ test is the same done by gdb, so although this test is very
+ voodoo, it should be pretty robust (the beginning of the
+ executable code - at 0x10000 - is tested for a known bit
+ pattern). The result is used to set $OS2::can_fork, which is
+ eventually used to set $Config::Config{can_fork}.
+
+ REXX::eval_REXX() made reenterable. ADDRESS PERLEVAL
+ available for the run REXX code. PERLLASTERROR available.
+
+ A .map file is created for the .dll. Now easier to debug the
+ failures which do not happen with a debugging executable.
+
+ Duplicate libperl.lib as perl.lib etc. to make Embed happier.
+
+ File::Spec better adjusted to OS/2 (still does not support aa:/dir/).
+
+ New module OS::Process::Const with necessary constants for the
+ Perl calls which mimic OS/2 API calls.
+
+After @14577:
+ $Config{pager} better (but needs work in the binary installer!).
+
+ New API: OS2::DLLname([type], [\&sub])
+
+ New OS2::Process APIs:
+
+ process_hwnd winTitle_set winTitle swTitle_set bothTitle_set
+ hWindowPos hWindowPos_set DesktopWindow
+ ActiveWindow_set
+ EnableWindow EnableWindowUpdate IsWindowEnabled
+ IsWindowVisible IsWindowShowing WindowPtr WindowULong
+ WindowUShort SetWindowBits SetWindowPtr
+ SetWindowULong
+ SetWindowUShort MPFROMSHORT MPVOID MPFROMCHAR
+ MPFROM2SHORT
+ MPFROMSH2CH MPFROMLONG
+
+ OS::Process::Const symbols exportable from OS::Process too.
+
+ OS::Process: prototypes on subroutines which do not naturally
+ take "vectors" as arguments (not backwards compatible!).
+
+ New C API: SaveCroakWinError(), WinError_2_Perl_rc,
+ DeclWinFuncByORD_CACHE(), DeclWinFuncByORD_CACHE_survive(),
+ DeclWinFuncByORD_CACHE_resetError_survive(),
+ DeclWinFunc_CACHE(), DeclWinFunc_CACHE_resetError(),
+ DeclWinFunc_CACHE_survive(),
+ DeclWinFunc_CACHE_resetError_survive(); many new OS2 entry
+ points conveniently available via wrappers which will do the
+ necessary run-time dynalinking.
+
+After @15047:
+ makes PerlIO preserve the binary/text mode of filehandles
+ chosen by CRT library. (However, TTY handles still are not
+ clean, since switching them to TERMIO mode and back changes
+ the NL translation law at runtime, and PerlIO level does not
+ know this.)
+
+After @18156:
+ mkdir() rmdir() tolerate trailing slashes.
+ "localized" morphing to PM when already morphed would unmorph at end.
+ Convert \n to \r\n in REXX commands (Classic REXX would allow \r and
+ \r\n, but not \n as line-ends).
+
+After @19053:
+ Better detection of OS/2 in Configure scripts (if c:/ is not readable).
+ Better Configure support for \\ inside cpp-emited # lineno "filename".
+ Export pthread-support functions from threaded DLL.
+ [older change] If perl5.def file is present, the new perl5.def has
+ compatible ordinals.
+ OS/2 code compiles with threads enabled; much more robust pthreads
+ emulation (but some statics still present); survives fork().
+ New attributes supported with [f]stat() and chmod()
+ archived is 0x1000000 = 0100000000
+ hidden is 0x2000000 = 0200000000
+ system is 0x4000000 = 0400000000
+ If extra flag 0x8000000 = 01000000000 is missing during
+ chmod(), these 3 flags are ignored; this extra flag
+ is set in the result of stat() [this provides backward
+ compatibility, as well as transparency of stat()/
+ chmod() supporting DOSISH].
+ OS/2-specific modules use XSLoader now.
+ Remove DLLs manually after failing build (link386 would not?!).
+ Special-case stat()ing "/dev/nul" and "/dev/null" too.
+ Update dlopen() and friends: preserve i387 flags, better error messages,
+ support name==NULL (load for "this" DLL);
+ OS2::DLL does not eval() generated functions, uses closes instead;
+ new method wrapper_REXX() for DLL objects.
+
+After @19774:
+ Use common typemap for OS2:: modules.
+ New test file os2/perlrexx.cmd (should be run manually; does not it
+ exit too early???).
+ Export fork_with_resources(), croak_with_os2error() from DLL.
+ usleep() availability put in %Config{}.
+ Combine most (but not all!) statics into one struct.
+ New load-on-demand C functions
+ Dos32QueryHeaderInfo
+ DosTmrQueryFreq
+ DosTmrQueryTime
+ WinQueryActiveDesktopPathname
+ WinInvalidateRect
+ WinCreateFrameControl
+ WinQueryClipbrdFmtInfo
+ WinQueryClipbrdOwner
+ WinQueryClipbrdViewer
+ WinQueryClipbrdData
+ WinOpenClipbrd
+ WinCloseClipbrd
+ WinSetClipbrdData
+ WinSetClipbrdOwner
+ WinSetClipbrdViewer
+ WinEnumClipbrdFmts
+ WinEmptyClipbrd
+ WinAddAtom
+ WinFindAtom
+ WinDeleteAtom
+ WinQueryAtomUsage
+ WinQueryAtomName
+ WinQueryAtomLength
+ WinQuerySystemAtomTable
+ WinCreateAtomTable
+ WinDestroyAtomTable
+ WinOpenWindowDC
+ DevOpenDC
+ DevQueryCaps
+ DevCloseDC
+ WinMessageBox
+ WinMessageBox2
+ WinQuerySysValue
+ WinSetSysValue
+ WinAlarm
+ WinFlashWindow
+ WinLoadPointer
+ WinQuerySysPointer
+ Check "\\SEM32\\PMDRAG.SEM" before loading PM-specific DLLs.
+ Handling of system {realname} was not correct in presence of
+ exe-type deduction, #!-emulation etc.
+ Use optimized PUSHTARG etc. XSUB convention.
+ $^E stringification contains PMERR_INVALID_HWND, PMERR_INVALID_HMQ,
+ PMERR_CALL_FROM_WRONG_THREAD, PMERR_NO_MSG_QUEUE,
+ PMERR_NOT_IN_A_PM_SESSION if these errors are not in .MSG file
+ (at least on Warp3fp42).
+ PERLLIB_PREFIX augmented by PERLLIB_582_PREFIX, PERLLIB_58_PREFIX,
+ PERLLIB_5_PREFIX (example for 5.8.2, the first one present is
+ considered).
+ New flag bit 0x2 for OS2::MorphPM(): immediately unmorph after creation
+ of message queue.
+ (De)Registring MQ preserves i386 flags.
+ When die()ing inside OS2:: API, include $^E in the message.
+ New function OS2::Timer(): returns Tmr-timer ticks (about 1MHz) since
+ start of OS/2, converted to number of seconds (keep in mind
+ that this timer uses a different crystal than the real-time
+ clock; thus these values have only weak relationship to the
+ wall clock time; behaviour with APM on is not defined).
+ New function OS2::DevCap() [XXX Wrong usage message!!!]
+ Usage: OS2::DevCap([WHAT, [HOW=0]]); the default for WHAT is
+ the memory device context, WHAT should be a device context
+ (as integer) if HOW==0 and a window handle (as integer) if
+ HOW==1. Returns a hash with keys
+ FAMILY IO_CAPS TECHNOLOGY DRIVER_VERSION WIDTH HEIGHT
+ WIDTH_IN_CHARS HEIGHT_IN_CHARS HORIZONTAL_RESOLUTION
+ VERTICAL_RESOLUTION CHAR_WIDTH CHAR_HEIGHT
+ SMALL_CHAR_WIDTH SMALL_CHAR_HEIGHT COLORS COLOR_PLANES
+ COLOR_BITCOUNT COLOR_TABLE_SUPPORT MOUSE_BUTTONS
+ FOREGROUND_MIX_SUPPORT BACKGROUND_MIX_SUPPORT
+ VIO_LOADABLE_FONTS WINDOW_BYTE_ALIGNMENT BITMAP_FORMATS
+ RASTER_CAPS MARKER_HEIGHT MARKER_WIDTH DEVICE_FONTS
+ GRAPHICS_SUBSET GRAPHICS_VERSION GRAPHICS_VECTOR_SUBSET
+ DEVICE_WINDOWING ADDITIONAL_GRAPHICS PHYS_COLORS
+ COLOR_INDEX GRAPHICS_CHAR_WIDTH GRAPHICS_CHAR_HEIGHT
+ HORIZONTAL_FONT_RES VERTICAL_FONT_RES DEVICE_FONT_SIM
+ LINEWIDTH_THICK DEVICE_POLYSET_POINTS
+ New function OS2::SysValues(which = -1, hwndDesktop = HWND_DESKTOP).
+ If which != -1, returns the corresponding SysValue. Otherwise
+ returns a hash with keys:
+ SWAPBUTTON DBLCLKTIME CXDBLCLK CYDBLCLK
+ CXSIZEBORDER CYSIZEBORDER ALARM 7 8 CURSORRATE
+ FIRSTSCROLLRATE SCROLLRATE NUMBEREDLISTS WARNINGFREQ
+ NOTEFREQ ERRORFREQ WARNINGDURATION NOTEDURATION
+ ERRORDURATION 19 CXSCREEN CYSCREEN CXVSCROLL CYHSCROLL
+ CYVSCROLLARROW CXHSCROLLARROW CXBORDER CYBORDER
+ CXDLGFRAME CYDLGFRAME CYTITLEBAR CYVSLIDER CXHSLIDER
+ CXMINMAXBUTTON CYMINMAXBUTTON CYMENU
+ CXFULLSCREEN CYFULLSCREEN CXICON CYICON
+ CXPOINTER CYPOINTER DEBUG CPOINTERBUTTONS POINTERLEVEL
+ CURSORLEVEL TRACKRECTLEVEL CTIMERS MOUSEPRESENT
+ CXALIGN CYALIGN
+ DESKTOPWORKAREAYTOP DESKTOPWORKAREAYBOTTOM
+ DESKTOPWORKAREAXRIGHT DESKTOPWORKAREAXLEFT 55
+ NOTRESERVED EXTRAKEYBEEP SETLIGHTS INSERTMODE 60 61 62 63
+ MENUROLLDOWNDELAY MENUROLLUPDELAY ALTMNEMONIC
+ TASKLISTMOUSEACCESS CXICONTEXTWIDTH CICONTEXTLINES
+ CHORDTIME CXCHORD CYCHORD CXMOTIONSTART CYMOTIONSTART
+ BEGINDRAG ENDDRAG SINGLESELECT OPEN CONTEXTMENU CONTEXTHELP
+ TEXTEDIT BEGINSELECT ENDSELECT BEGINDRAGKB ENDDRAGKB
+ SELECTKB OPENKB CONTEXTMENUKB CONTEXTHELPKB TEXTEDITKB
+ BEGINSELECTKB ENDSELECTKB ANIMATION ANIMATIONSPEED
+ MONOICONS KBDALTERED PRINTSCREEN /* 97, the last one on one of the DDK header */
+ LOCKSTARTINPUT DYNAMICDRAG 100 101 102 103 104 105 106 107
+ New function OS2::SysValues_set(which, val, hwndDesktop = HWND_DESKTOP).
+ Support new keys NUMPROCESSORS MAXHPRMEM MAXHSHMEM MAXPROCESSES
+ VIRTUALADDRESSLIMIT INT10ENABLE from OS2::SysInfo(); support
+ up to 10 unnamed values after the last named one.
+ New function OS2::SysInfoFor(id[,count=1]). [Wrong usage message!!!]
+ New function OS2::Beep(freq = 440, ms = 100).
+ New flags mod_name_C_function = 0x100, mod_name_HMODULE = 0x200 in
+ addition to old mod_name_handle = 0, mod_name_shortname = 1,
+ mod_name_full = 2 for OS2::DLLname(flag, cv); use an address
+ (as integer) or module handle instead of cv.
+ New function OS2::_headerInfo(req,size[,handle,[offset]]).
+ New function OS2::libPath(); returns the value of LIBPATH.
+ New function OS2::mytype(which=0) to query current process type:
+ 0: type immediately after startup or last fork();
+ 1: type immediately after startup;
+ 2: type before the first morphing;
+ 3: type as set now in the header.
+ New function OS2::mytype_set(type);
+ New function OS2::incrMaxFHandles(delta = 0); returns updated value
+ for the possible number of open file descriptors.
+ Make check_emx_runtime() thread-safe.
+ Fix float-to-string conversion in the range .0001..0.1 (would return
+ in exponential notation, per gcvt()).
+ Make fork(): a) preserve i387 flags;
+ b) preserve the dynamically loaded (system) DLLs;
+ c) preserve morphed status;
+ Make sleep() work with time > 0xffffffff/1000.
+ Implement usleep() via _sleep2(); make select() with num_files==0
+ thread-safe (via calling DosSleep()).
+ OS2::Process::Const() manages (MB|MBID|CF|CFI|SPTR)_.* constants too.
+ New (exported) functions from OS2::Process (some undocumented???):
+ process_codepage_set
+ TopLevel
+ FocusWindow_set_keep_Zorder
+ ActiveDesktopPathname
+ InvalidateRect
+ CreateFrameControl
+ ClipbrdFmtInfo
+ ClipbrdOwner
+ ClipbrdViewer
+ ClipbrdData
+ OpenClipbrd
+ CloseClipbrd
+ ClipbrdData_set
+ ClipbrdOwner_set
+ ClipbrdViewer_set
+ EnumClipbrdFmts
+ EmptyClipbrd
+ AddAtom
+ FindAtom
+ DeleteAtom
+ AtomUsage
+ AtomName
+ AtomLength
+ SystemAtomTable
+ CreateAtomTable
+ DestroyAtomTable
+ _ClipbrdData_set
+ ClipbrdText
+ ClipbrdText_set
+ _MessageBox
+ MessageBox
+ _MessageBox2
+ MessageBox2
+ LoadPointer
+ SysPointer
+ Alarm
+ FlashWindow
+ Do not use AUTOLOAD in OS2::DLL; moved to OS2::DLL::dll.
+ New method OS2::DLL->module() (to replace botched ->new() method).
+ New functions call20(), call20_p(), call20_rp3(), call20_rp3_p(),
+ call20_Dos(), call20_Win(), call20_Win_0OK(),
+ call20_Win_0OK_survive() in OS2::DLL to call C functions via
+ pointers.
+
+After @20218:
+ select() workaround broke build of x2p.
+ New OS2::Process (exported, undocumented) functions:
+ kbdChar
+ kbdhChar
+ kbdStatus
+ _kbdStatus_set
+ kbdhStatus
+ kbdhStatus_set
+ vioConfig
+ viohConfig
+ vioMode
+ viohMode
+ viohMode_set
+ _vioMode_set
+ _vioState
+ _vioState_set
+ vioFont
+ vioFont_set
+ Make CheckOS2Error() macro return the error code.
+ New dynaloaded entry point DosReplaceModule().
+ New function OS2::replaceModule(target [, source [, backup]]).
+
+After @21211:
+ Make Cwd::sys_abspath() default to '.' and taint the result.
+ Fix os2_process*.t to work if the default for VIO windows is maximized.
+ Fix to avoid non-existing PIDs for get_sysinfo() broke pid==0.
+ Restore default mode for pipes to be TEXT mode.
+
+After @21379:
+ New OS2::Process functions: __term_mirror_screen() __term_mirror()
+ io_term().
+ Fix a.out build: special-case thread::shared, pick up all the build
+ static libraries, not only those for top-level modules.
+ Fix DLLname() test to work with the static build too.
+ New dynaloaded entry point RexxRegisterSubcomExe(); make OS2::REXX use
+ it so it is not linked with REXX*.DLLs any more.
+ If system "./foo", and empty "./foo" and "./foo.exe" exist,
+ argv[0] would be set to junk.
+ Make perl2cmd convert .pl files and keep the command-line switches.
+ Make XSLoader and Perl-specific parts of DynaLoader to die with static
+ builds (new variable $OS2::is_static used);
+ Move perlmain.obj to the DLL; export main() as dll_perlmain(); create
+ a library libperl_dllmain to translate the exported symbol
+ back to main(); link the executables with this library instead
+ of perlmain.obj.
+ Add /li to link386's options (line number info in the .map file).
+ Another break from fix to avoid non-existing PIDs for get_sysinfo().
+
+After @21574:
+ Update import libraries when perl version changes (e.g., due to rsync).
+ New exported symbols dup() and dup2() [the wrappers have workaround
+ for off-by-one error + double fault in the pre-Nov2003 kernels
+ when a (wrong) filedescriptor which is limit+1 is dup()ed].
+ Enable disabling fd via a FILE* (to avoid close() during fclose()).
+ New dynaloaded entry point DosPerfSysCall().
+ New function OS2::perfSysCall(cmd = CMD_KI_RDCNT, ulParm1= 0,
+ ulParm2= 0, ulParm3= 0); when called
+ with cmd == CMD_KI_RDCNT = 0x63 and no other parameters,
+ returns: in the scalar context: the tick count of processor 1;
+ in the list context: 4 tick counts per processor:
+ total/idle/busy/interrupt-time.
+ with cmd == CMD_KI_GETQTY == 0x41 and no other parameters,
+ returns the CPU count. Currently in other cases the return
+ is void.
+ New executables perl___<number> generated with decreased stack size
+ (good when virtual memory is low; e.g. floppy boot).
+
+After 5.8.2 (@21668):
+ Fixes to installperl scripts to avoid junk output, allow overwrite
+ of existing files (File::Copy::copy is mapped to DosCopy()
+ with flags which would not overwrite).
+ Disable DynaLoading of Perl modules with AOUT build (will core anyway).
+ For AOUT build: Quick hack to construct directories necessary for
+ /*/% stuff [maybe better do it from hints/os2.sh?].
+ AOUT build: do -D__ST_MT_ERRNO__ to simplify linking with -Zmtd
+ (e.g., to test GD: gd.dll linked with -Zmtd).
+ MANIFEST.SKIP was read without a drive part of the filename.
+ Rename Cwd::extLibpath*() to OS2::... (old names still preserved).
+ Install perl.lib and perl.a too.
+ New methods libPath_find(),has_f32(),handle(),fullname() for OS2::DLL.
+ Enable quad support using long long.
+ New C exported functions os2_execname(), async_mssleep(), msCounter(),
+ InfoTable(), dir_subst(), Perl_OS2_handler_install(),
+ fill_extLibpath().
+ async_mssleep() uses some undocumented features which allow usage of
+ highest possible resolution of sleep() while preserving low
+ priority (raise of resolution may be not available before
+ Warp3fp40; resolution is 8ms/CLOCK_SCALE).
+ usleep() and select(undef,undef,undef,$t) are using this
+ interface for time up to 0.5sec.
+ New convenience macros os2win_croak_0OK(rc,msg), os2win_croak(rc,msg),
+ os2cp_croak(rc,msg).
+ Supports ~installprefix, ~exe, ~dll in PERLLIB_PREFIX etc (actual
+ directories are substituted).
+ New functions OS2::msCounter(), OS2::ms_sleep(), OS2::_InfoTable().
+ Checks stack when fixing EMX being under-initialized (-Zomf -Zsys
+ produces 32K stack???).
+ New environment variables PERL_BEGINLIBPATH, PERL_PRE_BEGINLIBPATH,
+ PERL_POST_BEGINLIBPATH, PERL_ENDLIBPATH,
+ PERL_PRE_ENDLIBPATH PERL_POST_ENDLIBPATH (~-enabled);
+ PERL_EMXLOAD_SECS.
+ Better handling of FIRST_MAKEFILE (propagate to subdirs during test,
+ do not require Makefile.PL present).
+ perl2cmd converter: do not rewrite if no change.
+ README.os2 updated with info on building binary distributions and
+ custom perl executables (but not much else).
https://perl5.git.perl.org / perl5.git / blobdiff