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  1. 05 Sep, 2020 1 commit
    • Ben Avison's avatar
      Enable modulewrapped applications to use ResGen · 073ebc25
      Ben Avison authored
      This utilises a weak symbol import so that if the symbol `Resources` resolves
      at link time, it is called to discover the address of the resource file data
      block(s) to be installed in ResourceFS. If this fails, it drops back to using
      the `s.ResFiles` source file as previously, thereby ensuring compatibility
      with components that have not yet been converted to use ResGen.
      
      Since `Resources` is the default area name (and thus discovery function name)
      used for ResGen in the shared makefiles, this makes it as simple as possible
      to utilise it.
      
      Version 6.08. Tagged as 'RISC_OSLib-6_08'
      073ebc25
  2. 06 Jul, 2020 1 commit
    • Jeffrey Lee's avatar
      Adjust 26 vs. 32 bit mode checks · fa89c230
      Jeffrey Lee authored
      As noted in https://www.riscosopen.org/forum/forums/9/topics/15359, MRS
      instructions which are executed in user mode may return unknown values
      for the CPSR E, A, I, F and M fields on ARMv8 CPUs. At the moment the
      only observed deviation from normal behaviour is that CPUs which lack
      AArch32 privileged-mode support may return zero for the fields. This was
      found to confuse some 26 vs. 32 bit mode checks in CLib.
      
      Clearly we're a long way away from having a version of RISC OS which can
      run on a CPU that lacks AArch32 privileged mode support, but we can
      still try and make sure user-mode applications are compatible with them.
      So this change adjusts the mode checks in the stubs and overlay manager
      so that programs linked with them should function correctly (TEQ is now
      used instead of MRS)
      
      Note that once we do start porting RISC OS to one of the troublesome
      CPUs, there are many more potentially troublesome MRS's within the
      module code that will need adjusting, especially if CPUs start returning
      values other than zero.
      
      Version 6.07. Tagged as 'RISC_OSLib-6_07'
      fa89c230
  3. 09 May, 2020 2 commits
    • Jeffrey Lee's avatar
      txtar: Support extended scroll requests · d3688b4c
      Jeffrey Lee authored
      Use extended scroll requests to handle mouse wheel scrolling, to avoid
      the "thumbing" code getting confused and thinking the user is dragging
      the scrollbar (the "thumbing" mode of scrolling isn't desirable for the
      mouse wheel, because it largely ignores the requested scroll distance)
      
      This change allows Edit & SrcEdit (and anything else using txtar) to
      handle the scroll wheel better, now that the WindowScroll module is
      controlling things.
      
      Version 6.06. Tagged as 'RISC_OSLib-6_06'
      d3688b4c
    • ROOL's avatar
      Extra rlib sprite function for ROM stubs · f41e4118
      ROOL authored
      Detail:
        Export sprite_put_mask_scaled when UROM.
        Also, delete sprite_put_greyscaled() which has been unimplemented in SpriteExtend since RISC OS 3.60.
      Admin:
        Required by Paint bounty.
      
      Version 6.05. Not tagged
      f41e4118
  4. 06 May, 2020 4 commits
    • ROOL's avatar
      Fix switch to wrong mode in AbortFindHandler · ae6fe48b
      ROOL authored
      Detail:
        Was (trying to) clear the M32 flag in {CONFIG}=32.
        Ref: https://www.riscosopen.org/forum/forums/1/topics/15080?page=1#posts-99441
        Makefile updated to only pass rlib's txt switch when building rlib.
      
      Version 6.05. Tagged as 'RISC_OSLib-6_05'
      ae6fe48b
    • ROOL's avatar
      Add C11/C18 library functions · eef62ec8
      ROOL authored
      Detail:
        alloc.c - Add aligned_alloc(). Since softloaded versions of the C library can't rely on OS_Module 24 being available there is a fallback implementation for older kernels.
        stdlib.c - Add quick_exit() and at_quick_exit(). Also fix bug in _Exit; a missing loop pre-decrement led to only checking a single (out of array bounds!) vector.
        time.c - Add timespec_get().
        cl_entry2 - 4 new functions added to the stubs.
        Reduce spare CLib static workspace to absorb the quick_exit() handlers, remove the unused words from armsys.c so they're all accounted for in one space.
      Admin:
        In order that the functions can be defined in the stubs now (despite not having a compiler to support C11/C18) they are enabled when 'DDE' is defined so that C library builds work.
      eef62ec8
    • ROOL's avatar
      CLib header updates · 948e0838
      ROOL authored
      Detail:
        assert.h - definition of static_assert
        complex.h - definition of CMPLX[F|L]
        float.h - various implementation defines
        stdio.h - hide gets() as it's been withdrawn
        wchar.h - guard mbstate_t as it can also be in uchar.h, fix missing __valist definition
      Admin:
        In order that the functions can be defined in the stubs now (despite not having a compiler to support C11/C18) they are enabled when 'DDE' is defined so that C library builds work.
      948e0838
    • ROOL's avatar
      Add fopen's exclusive mode · 68fc9d43
      ROOL authored
      Detail:
        Remove undocumented 't' mode which forcibly timestamped files, since other operating systems use this to denote a text file (as opposed to 'b' binary mode).
        Add 'x' mode per ISO9899:2018
        * only applies to 'w' mode files (not 'r' or 'a')
        * file must not exist prior to creation
        * beyond that we rely on RISC OS' policy of only allowing a file to be opened once for writing as our exclusivity
        Also fix bug in check for 'Protected disc' error, which only trigged for fsnumber_ADFS (8).
      Admin:
        Tested in a ROM build with a simple test harness.
      68fc9d43
  5. 22 Apr, 2020 1 commit
  6. 20 Jul, 2019 1 commit
  7. 29 Jun, 2019 2 commits
  8. 09 Jun, 2019 1 commit
    • ROOL's avatar
      Build fix · 20984a33
      ROOL authored
      Detail:
        Add missing function draw_create_diag() to the ROM version of RISC_OSLib, required by Paint-2_24 and later.
        To keep ROM footprint to a minimum, export only that function; this also avoids adding static workspace and needing to increase RlibSpace.
      
      Version 6.01. Tagged as 'RISC_OSLib-6_01'
      20984a33
  9. 17 Mar, 2019 1 commit
    • ROOL's avatar
      Build fix · 6982f5cc
      ROOL authored
      Detail:
        Add wimp_autoscroll to rlib entries.
      
      Version 6.00. Not tagged
      6982f5cc
  10. 16 Mar, 2019 1 commit
    • ROOL's avatar
      CLib and rlib header updates · 0c846685
      ROOL authored
      Detail:
        Export fenv.h (omitted in error).
        Add FP_FAST_FMAL and FP_FAST_FMA defines per C standard
        Submission for ARMv7 Compiler bounty.
      
        Add Wimp_AutoScroll supporting function to rlib.
        Export various related defines for autoscroll use.
        Submission for Clipboard Support bounty.
      
      Version 6.00. Tagged as 'RISC_OSLib-6_00'
      0c846685
  11. 09 Feb, 2019 1 commit
    • ROOL's avatar
      Fix to iconbar menu X offset · 2f520d7e
      ROOL authored
      Detail:
        The fix applied to all menus in event.c revision 4.6 didn't take into account the offset of -16 already applied to iconbar menus.
      Admin:
        Tested with Draw-1_31.
      
      Version 5.99. Tagged as 'RISC_OSLib-5_99'
      2f520d7e
  12. 26 Jan, 2019 1 commit
    • Robert Sprowson's avatar
      Various fixes · a8f233bb
      Robert Sprowson authored
      colourtran.c: Swap round arg names to colourtran_colournumbertoGCOL to match prototype.
      txtar.c: Avoid incorrect use of strncat buffer limit, and possible unterminated string after strncpy, by reexpressing using snprintf.
      txtedit.c: Avoid incorrect use of strncat buffer limit by reexpressing using snprintf. Avoid potential NULL pointer dereference by moving the filename copy inside the 'if' which confirms it's non-NULL.
      txtfind.c: Remove repeated check of repls being valid. Free repls on error. Free pat on error.
      xfersend.c: Fix potential out of bounds array access (of leaf[]) if the leafname length exceeds the space in the Wimp message.
      Found by cppcheck static analysis.
      
      txtopt.c/h: Sprinkle in some consts.
      event.c: Open menu at the Style Guide approved offset of 64.
      xfersend.c: Remove redundant check of xfersend__filename being NULL in xfersend__suggest_leaf() as all paths leading to it being called ensure the allocation exists (also, it would have strcpy'd garbage due to malloc not clearing the allocation).
      
      Removed unused header txtover.h.
      
      Version 5.98. Tagged as 'RISC_OSLib-5_98'
      a8f233bb
  13. 11 Jun, 2018 1 commit
    • Jeffrey Lee's avatar
      Fix to CopyError change · 0a8fe9be
      Jeffrey Lee authored
      Detail:
        kernel/s/k_body - CPSR_f is the correct field for the NZCV flags, not _c
      Admin:
        Untested
      
      
      Version 5.97. Tagged as 'RISC_OSLib-5_97'
      0a8fe9be
  14. 10 Jun, 2018 1 commit
    • Jeffrey Lee's avatar
      Try and avoid blocking callbacks · 73fd8884
      Jeffrey Lee authored
      Detail:
        The kernel has a 'callback postponement flag' which will be set whenever an X SWI, called from user mode, returns a pointer to an error (and the error block looks like it's in RAM).
        Although this flag will help prevent the error buffer from being overwritten by any errors generated by callbacks, it will also have the effect of blocking Alt-Break and CLib's Escape handler, due to them both being reliant on callbacks.
        Since the flag may persist for a long time, it can be dangerous to leave the OS in this state (the flag can only be cleared by a SWI call from user mode - which may never happen if the program is stuck in a bad state).
        So to combat this, CLib will now make some effort to try and avoid leaving the postponement flag in situations where it shouldn't be needed.
        File changes:
        - c/armsys:
          - Change _sys_flen to return 0 for TTY streams, since calling OS_Args for them isn't going to generate any useful result (previously it was generating an error, causing the postponement flag to be left set on entry to main())
          - Be extra vigilant when entering main() to make sure the callback postponement flag isn't set, just in case other checks don't resolve it
        - kernel/s/k_body:
          - Change CopyError to attempt to clear the callback postponement flag if we suspect it's set. We've just copied the error to our own buffer, so it should be our job to worry about preventing that buffer being prematurely overwritten, not the kernel's.
      Admin:
        Tested on BB-xM
        'while (1) {}' (and similar variants) now multitasks in task windows and is no longer unkillable
        Fixes issue reported on forums:
        https://www.riscosopen.org/forum/forums/4/topics/11542#posts-79767
      
      
      Version 5.96. Tagged as 'RISC_OSLib-5_96'
      73fd8884
  15. 14 Apr, 2018 1 commit
    • Jeffrey Lee's avatar
      Make abort handling more robust · e4577090
      Jeffrey Lee authored
      Detail:
        kernel/s/k_body - Update AbortFindHandler to check that SP & SL are both word aligned, especially because the code will attempt to load from SL to check for the stack chunk magic marker.
      Admin:
        Tested on BB-xM
        Avoids some "abort while in abort handler" type scenarios if an abort occurs while SP/SL are invalid
      
      
      Version 5.95. Tagged as 'RISC_OSLib-5_95'
      e4577090
  16. 29 Oct, 2017 1 commit
    • Robert Sprowson's avatar
      Put ctl in the attic · 91926745
      Robert Sprowson authored
      The ctl part of rlib has various memory leaks (ref https://www.riscosopen.org/forum/forums/4/topics/9503) reflecting its abandoned state. See the FrontEnd module for a more flexible implementation of the same GUI-in-a-text-file scripting language.
      The ctl API was not in C release 3 (it post dates that) nor in C release 4 manual, and the whole of rlib was removed from C release 5 in favour of the Toolbox.
      The change log at the top of rlib/s/rl_spare shows it was briefly added in early 1990 then removed in April 1991. 26 years later, cull it from the Makefile too.
      
      Version 5.94. Tagged as 'RISC_OSLib-5_94'
      91926745
  17. 03 Sep, 2017 1 commit
    • Jeffrey Lee's avatar
      Eliminate some global OS_SynchroniseCodeAreas calls · d89ca652
      Jeffrey Lee authored
      Detail:
        kernel/s/k_body - Eliminate a couple of global OS_SynchroniseCodeAreas calls in _kernel_init and _kernel_system
        s/initmodule - Eliminate a global OS_SynchroniseCodeAreas call in _Shared_Lib_Module_SWI_Code
      Admin:
        Tested on iMx6
        Improves performance with SMP ROMs, where global D-cache clean isn't really possible
      
      
      Version 5.93. Tagged as 'RISC_OSLib-5_93'
      d89ca652
  18. 28 May, 2016 1 commit
    • Jeffrey Lee's avatar
      Remove ARM2 NOPs · e52669b7
      Jeffrey Lee authored
      Detail:
        kernel/s/k_body, s/initmodule - Remove NOPs from after PSR manipulation macros; the macros now fully take care of ARM2 & StrongARM compatibility for us
      Admin:
        Tested PlingSystem build on (ARM3) RISC OS 3.1
        Requires HdrSrc-2_63 for ARM2 compatibility
      
      
      Version 5.92. Tagged as 'RISC_OSLib-5_92'
      e52669b7
  19. 25 May, 2016 1 commit
    • Jeffrey Lee's avatar
      Build fix · 3aebb5f2
      Jeffrey Lee authored
      Detail:
        s/longlong - Copy-paste error led to conditional being on wrong line
      Admin:
        Tested with Raspberry Pi ROM build
      
      
      Version 5.91. Retagged as 'RISC_OSLib-5_91'
      3aebb5f2
  20. 24 May, 2016 1 commit
    • Jeffrey Lee's avatar
      When multiple CPU architectures are supported, allow dynamically linked... · f3f167bc
      Jeffrey Lee authored
      When multiple CPU architectures are supported, allow dynamically linked clients to be given optimal versions of routines where possible
      
      Detail:
        This set of changes adds support for representing architecture-specific variants of routines within the export tables which the shared C library uses to fill in the client's stubs.
        This allows builds of the module which target multiple architectures (e.g. IOMD, Raspberry Pi, or softloads) to offer the most optimal versions of routines to clients wherever multiple variants exist.
        If only one architecture is supported, only one version of each routine will be built, and no variant tables will be generated.
        Currently routine selection for staticly linked clients isn't supported - staticly linked targets will only use the most backwards-compatible version of the routines, as before. Also not all routines are catered for yet (e.g. _ll_udiv)
        File changes:
        - s/h_common - New file containing macros used during variant table construction
        - Makefile - Set SHARED_C_LIBRARY to {TRUE} for SCL builds of assembler code, as per the SHARED_C_LIBRARY #define
        - kernel/s/k_body, s/longlong - For routines which have multiple variants available for the target architectures, build all variants, and generate variant table entries using the new RoutineVariant macro. This has required some reordering of the different variants to make sure that when both versions are built, the most backwards-compatible one will be first (and thus will be called by staticly linked clients)
        - s/h_modmacro - "Entry" macro (when building SCL export tables) changed to use DCD instead of B, to allow byte-aligned symbols to be represented (low bits of symbol address is now used as 'is a variant table' flag)
        - s/initmodule - Client stub initialisation rewritten to take into account the B -> DCD change, and to detect and evaluate variant entries
        - clib/s/cl_entries, kernel/s/k_entries, kernel/s/k_entries2 - Update library entry tables to reference the variant forms of routines where relevant
      Admin:
        Tested on Raspberry Pi 1, 2, 3 (ROM), RISC OS 3.1 & StrongARM 3.7 (softload 26bit build)
        Requires Kernel-5_35-4_79_2_325
      
      
      Version 5.91. Tagged as 'RISC_OSLib-5_91'
      f3f167bc
  21. 14 May, 2016 1 commit
    • ROOL's avatar
      [391] localtime() ignores manual timezone configuration · 332c9e74
      ROOL authored
      Detail:
        When in the default C locale localtime() would return the wrong time for nonzero timezones.
      Admin:
        Tested with softloaded C library for each ROM release supported.
        Submission from Rick Murray.
      
      Version 5.90. Tagged as 'RISC_OSLib-5_90'
      332c9e74
  22. 08 May, 2016 1 commit
    • Jeffrey Lee's avatar
      Prefer CPS over MSR for PSR manipulation. Use UDIV/SDIV for general-purpose... · 377852c3
      Jeffrey Lee authored
      Prefer CPS over MSR for PSR manipulation. Use UDIV/SDIV for general-purpose division, and UMULL for /10.
      
      Detail:
        s/k_body:
        - _kernel_irqs_off and _kernel_irqs_on now use CPS for disabling/enabling IRQs as opposed to MSR. Apart from being shorter code sequences, it's generally a faster instruction.
        - __rt_udiv and __rt_sdiv (and aliases) now use the UDIV and SDIV instructions if building for ARMv7VE
        - __rt_udiv10 and __rt_sdiv10 (and aliases) now use UMULL to multiply by 1/10 when building for targets with long multiply support, as this is faster than the old method. UDIV/SDIV can be fast too, but only for small numbers, making UMULL the best for the general case.
      Admin:
        Tested on Cortex-A15
        Prototyping of division routines on assorted CPUs shows that UDIV/SDIV is generally between 20% and 400% faster than the old routine (Cortex-A7, Cortex-A53), or up to 1300% faster on Cortex-A15 (the CPU does not like the old routine!)
        Division by 10 is now about 20% faster across all appropriate CPUs
      
      
      Version 5.89. Tagged as 'RISC_OSLib-5_89'
      377852c3
  23. 01 Mar, 2016 2 commits
  24. 29 Feb, 2016 1 commit
    • Ben Avison's avatar
      Support for ARMv8 · 9b78d05f
      Ben Avison authored
      Detail:
        The SWP and SWPB instructions have finally been removed in ARMv8, after
        having been deprecated for a very long time. This version adds alternative
        versions of code that used to use them with ones that use LDREX/STREX and
        LDREXB/STREXB instead. Soft-loadable C libraries will choose between
        implementations at runtime using OS_PlatformFeatures; ROM builds only
        include the appropriate version for the target hardware.
      Admin:
        Tested on Raspberry Pi 3.
      
      Version 5.88. Tagged as 'RISC_OSLib-5_88'
      9b78d05f
  25. 26 Feb, 2016 1 commit
  26. 13 Feb, 2016 1 commit
    • ROOL's avatar
      Remove arbitrary limits on menu sizes · 758802b2
      ROOL authored
      Detail:
        When RISC_OSLib is used to generate menus using menu_new and menu_extend
        there are two (undocumented?) limits on the total menu size:
        - 64 items on a menu. Any more are silently ignored.
        - 1024 bytes of indirect text. Above this, any items have
          several bytes of random rubbish displayed in the menu entry.
      
        rlib.c.menu (r4.6) has been changed to:
        - remove menu_workarea which was on the stack, and caused limits.
        - only use malloc'd storage areas for the menu.
        - reduce the data copied by at least 50% by changing processing
          from: copy; update; copy
          to  : realloc extend (& copy?); update; realloc shrink (no copy).
        - remove the limits by adding more storage dynamically.
        - simplify code, which reduces the object code size by about 7%.
      Admin:
        The changes have been tested on an Iyonix running RO5.23, and VRPC
        running RO4.39, with a large C program with about 80 menus.
        The only noticeable effects were beneficial.
        It has also been tested with artificially low ADDITEMS and ADDBYTES.
        Submission from Martin Avison.
      
      Version 5.87. Tagged as 'RISC_OSLib-5_87'
      758802b2
  27. 07 Feb, 2016 2 commits
    • Robert Sprowson's avatar
      Open colour picker menus in the right place · ec3972c5
      Robert Sprowson authored
      Function dboxtcol() always opens colour pickers as transient submenus (in the flags to ColourPicker_OpenDialogue, plus listening for the menus deleted message) but chose to open the dialogue at the current mouse pointer, so obscuring part of the menu rather than opening it where the Style Guide wants it.
      wimp.h:
        Add a struct definition of menuwarn messages.
      txtedit.c/dbox.c/ctl.c:
        Use the menuwarn struct rather than indexing the words[].
      dboxtcol.c:
        Provided the last wimp event was the menu warning, use the x/y coordinates from that instead of the mouse pointer.
        Remove some local defines in favour of central ones.
        Make sure we use 0x80000000/0x7F000000 like the PRM says for the other 2 corners of the dialogue, not 0,0.
      Tested in a disc build of !Draw.
      
      Version 5.86. Not tagged
      ec3972c5
    • Robert Sprowson's avatar
      Non ANSI include warning fix · 3c9cbec2
      Robert Sprowson authored
      3c9cbec2
  28. 30 Jan, 2016 1 commit
    • ROOL's avatar
      Extra menu comments · 3ef629da
      ROOL authored
      Admin:
        Part of submission from Martin Avison. Not tagged.
      3ef629da
  29. 08 Nov, 2015 1 commit
    • ROOL's avatar
      Extra SWIOptions · 865c7c4a
      ROOL authored
      Detail:
        Export Hdr:ATA if present.
      Admin:
        Tagged as RISC_OSLib-5_86-1 since existing binaries unchanged.
      865c7c4a
  30. 08 Aug, 2015 1 commit
  31. 01 Aug, 2015 1 commit
  32. 30 Jun, 2015 1 commit
    • Jeffrey Lee's avatar
      Fix null pointer dereference in stack backtrace code · 1aa3b81b
      Jeffrey Lee authored
      Detail:
        c/armsys - _kernel_language will return NULL if the PC was outside any known library language block, so make sure to check for that before dereferencing the pointer
      Admin:
        Builds, untested
      
      
      Version 5.86. Tagged as 'RISC_OSLib-5_86'
      1aa3b81b
  33. 15 May, 2015 1 commit