GitLab

Detail:
  clib/s/cl_entries - Symbol names containing $'s are now wrapped in |'s to prevent potential unintended variable expansion
  s/h_modmacro, s/h_stubs - Modify Entry/Entry2 to not add their own vertical bars to symbol names (causing two sets of bars that cancel each other out)
Admin:
  Tungsten ROM version identical to before when built under objasm
  Needs Library-1_54 for ROM link symbol files to be generated correctly


Version 5.67. Retagged as 'RISC_OSLib-5_67'

Detail:
  kernel/s/k_body - NOP in Aborted2 is only needed if we're targeting StrongARM
  s/longlong - Make ReadCPUArch StrongARM & ARM2 safe
Admin:
  Tested in IOMD ROM softload


Version 5.67. Tagged as 'RISC_OSLib-5_67'

Detail:
  s/longlong - Only look for ARMv5 support when deciding if CLZ is available, not ARMv5T
Admin:
  Tested in OMAP3 ROM


Version 5.66. Tagged as 'RISC_OSLib-5_66'

Was being used to conditionalise things which aren't really StrongARM related, now should be read as "support split I+D caches" switch.

Version 5.65. Tagged as 'RISC_OSLib-5_65'

Detail:
  * Added 64-bit file pointer API support, following the LFS spec v1.5
    (see Docs directory). Internally, now uses 64-bit file pointers
    exclusively. For now, the backend still limits you to 4GB-1 files, but
    clients of the C library won't need recompiling again to support larger
    files than this once they use the new API.
  * Fixed a large number of warnings produced in compilation, assembly and
    linking, many of them new and resulting from the improved checks in the
    latest toolchain.
  * Increased the maximum stream buffer size from 16MB to 1GB.
  * Added Hdr:SDFS and Hdr:SDIO to the list of headers used to build swis.h
    if they are present.
Admin:
  Verified that the new 64-bit file pointer buffering code works using a
  ROM build (since the toolchain makes extensive use of reading, writing
  and seeking internally).

Version 5.64. Tagged as 'RISC_OSLib-5_64'

Detail:
  Last revision broke _ll_mullu (the runtime support function for multiplying
  a 64-bit integer by an unsigned 32-bit integer) except for ROM builds that
  target CPUs with the M extension. So in practice, IOMD ROMs and softloadable
  C libraries both exhibited the bug.
Admin:
  Verified that the compiler will now run against this C library (previously
  it reported many non-sensical errors).

Version 5.63. Tagged as 'RISC_OSLib-5_63'

Be more quiet when cleaning.
STM/LDM changed to Push/Pull.
Moved an illegal instruction back into ARM's illegal instruction space.

Version 5.62. Tagged as 'RISC_OSLib-5_62'

Detail:
  s/longlong - The code has always had the ability to use CLZ & long multiply instructions, but it's never been enabled. The nonfunctional code to detect the CPU architecture at runtime has been disabled, and instead a fixed configuration is selected at compile time with the help of Hdr:CPU.Arch. Also added lots of ROUT's for safety.
  s/objmacs - Updated push/pop macros to make use of LDR/STR when only one register is to be transferred. This fixes a few objasm 4 warnings and should result in a speed boost where applicable.
Admin:
  Tested on rev A2 BB-xM.
  Different math code configurations tested briefly.


Version 5.61. Tagged as 'RISC_OSLib-5_61'

Detail:
  clib/s/cl_stub, kernel/s/k_body, s/initmodule - Use OS_ReadSysInfo 6 to look up CLibWord/RISCOSLibWord/CLibCounter location each time it's needed instead of using hardcoded addresses. SWI overhead shouldn't be too bad since the zero page areas are rarely used.
  rlib/c/menu - Fix null pointer access when attempting to clear a submenu pointer via menu_submenu(...,...,NULL)
  s/h_workspc - Remove old local definitions of CLibCounter, RISCOSLibWorkSpace and CLibWorkSpace. Use Hdr:PublicWS instead.
Admin:
  Tested on rev A2 BB-xM


Version 5.60. Tagged as 'RISC_OSLib-5_60'

Detail:
  s.makehswis used to pull in various IO header files. There was no good
  reason for this, and doing so causes a dependency upon Hdr:Machine.<Machine>
  to define which generation of IOC/IOMD is in use - which is a problem if
  the C library is to be built where Machine=All.
Admin:
  Tested in a Machine=All build.

Version 5.54. Not tagged

Detail:
 This changes all the C and assembler includes to be a canoncial Unix format.
 Also match include paths to previous commit for EditIntern/DrawIntern/VerIntern
 Finally, also include some minor type fixes (NULL vs 0)
Admin:
 May be some other paths elsewhere in the source I'm not immediately able to fix.  Will address any issues ASAP, since this is a huge change.

Version 5.54. Not tagged

Version 5.52. Tagged as 'RISC_OSLib-5_52'

          * isprint() now true for non-breaking spaces
<math.h>  * FP_INFINITY corrected to FP_INFINITE
          * fma(), fmal(), llrint(), llrintf(), llrintl(),
            llround(), llroundf(), llroundl(),
            remquo(), remquof(), remquol() added.
          * added inlining for remainder() and fmaf() and various
            float functions.
          * math_errhandling removed pending overhaul - it was misleading.
          * expm1() and log1p() now provide decent (< 1 ulp) accuracy,
            rather than only being marginally better than exp(x)-1 and
            log(1+x).
          * new version of copysign() with standard calling conventions.
          * some C99 functions changed to use infinity/NaNs and exceptions
            for error handling - see comments in header file about the
            changes in progress.
<stdio.h>  * output from %a now correctly rounded
<stdlib.h> * strtof() and strtold() added.
<string.h> * strerror() no longer clears _kernel_last_oserror().

Version 5.49. Tagged as 'RISC_OSLib-5_49'

Detail:
  * No longer uses aasm to build h.swis.
  * (Only) compatible with new C compilers: assumes const static data is
    placed in separate read-only areas, and suitable command-line switch
    is used to ensure that library static data is never placed in a zero-
    init area.
  * Stack extension code now thread-safe.
  * Heap thread-safety code (in clib) now uses SWP instruction test results
    from stack extension code (in kernel) - as a side effect, the exported
    symbol _swp_available now exists, if you need to use it elsewhere.
  * Slightly closer to having top-bit-set heap addresses working.
Admin:
  Tested in a Tungsten build, and with Customer W's test suite.

Version 5.48. Tagged as 'RISC_OSLib-5_48'

Detail:
  * Implemented the thread-safety mutex macros for the user mode heap.
  * Created ansilibm, a version of ansilib suitable for building modules.
  * Fixed an overestimation of the size of the workspace passed to
    SharedCLibrary_LibInitModule[APCS_32] by the stubs.
  * Fixed bug in SharedCLibrary_LibInitModule[APCS_32] regarding handling of
    non-reentrant modules - if module code was at a higher address than the
    module data, then all the intervening data would be pointlessly copied
    back over itself with no allowance for volatility.
  * Removed the bsearch source file, since it was only required for APCS-A
    which the library has not supported since the year 2000, and which the
    compiler is now no longer able to build.
Admin:
  ansilibm builds working modules, but thread safety has not been
  extensively tested.

Version 5.47. Tagged as 'RISC_OSLib-5_47'

* _Exit() added.
* Lots of new <math.h> functions (acosh, asinh, atanh, exp2, expm1,
  ilogb, log1p, log2, logb, scalbn, scalbln, cbrt, erf, erfc,
  lgamma, tgamma, nexttoward, fmaf). Float and long double forms
  of every function added; long double forms are included as another
  library object in the stubs rather than the shared library, as they
  just branch to the double form.
* Subnormal/NaN/infinity cases in various <math.h> functions improved.
* Added <tgmath.h>.
* Headers brought into line with CC 5.54.
* RMEnsures added to C library initialisation to try to load minimum
  CallASWI, FPEmulator, CLib. No errors reported if load fails.
* A few pointless inter-file dependencies removed to reduce minimum
  size of included ANSILib.

Version 5.46. Tagged as 'RISC_OSLib-5_46'

PCI added to swis.h
alloc.c updated to handle bigger slots (new code merged from ARM libraries)
Various 32-bit fixes for backtracing, and general trap handling.
Polite "Application is not 32-bit compatible" message.
Headers <stdint.h> and <inttypes.h> fixed to work in non-C99 mode.
txt changed to do new-style Delete behaviour

Version 5.44. Tagged as 'RISC_OSLib-5_44'

* Added two new library chunks, 4 and 5, which contain extensions to the kernel and C library respectively. These have no static data associated with them, just being extensions of the stub tables. The reason for this is to minimise wasted space in programs that don't use the C99 facilities; o.stubs is now a library split into 3 pieces - basic kernel and CLib, extra kernel and extra

  CLib; only the bits a program needs get included.

* Previous extensions to the C library stubs revoked - they now stop at _swix;
  all the new C99 functions now live in chunk 4. Anyone using those new
  functions should relink with new stubs and ensure this C library version.

* printf/scanf now support 64-bit types through "ll" and "j" length modifiers.

* Run-time support for VLAs (__rt_allocauto and __rt_freeauto) added. No
  attempt is currently made to clear up on longjmp or to cope with someone
  changing the kernel allocator while a VLA is active. These would be a
  future enhancement.

* Added complete 64-bit run-time support (48 functions) to kernel library;
  these functions are compatible with the ones used by the ARM ADS. Many of
  the simpler functions will not normally be used by the compiler, as it
  will generate inline code. There is scope for improvement by switching
  in MULL and CLZ-using forms of multiply and divide when possible.

* llabs and lldiv added to C library.

* Header files corrected in a few areas, and changed to match the C compiler.
  <stdint.h> and <stdbool.h> now require the compiler to be in C99 mode
  (as detected using __STDC_VERSION__).


Version 5.41. Tagged as 'RISC_OSLib-5_41'

Created cleanroom implementation of 64-bit integer support for licencing reasons. Tested fairly thoroughly (in fact, this testing showed up a bug in the old code which unbalanced the stack for 50% of cases where you divided a negative long long by 10). Hopefully should work faster than the old code too!

Reapplied all relevant old tags.

Real commit date 2008-03-18.

* Added C99 functions floorf, ceilf, [l]rint[f], trunc[f], [l]round[f], nearbyint[f] and remainder[f].

* Added macros (only) for sinf, cosf, atanf.
* Requires cc 5.43

Version 5.39. Tagged as 'RISC_OSLib-5_39'

  * snprintf(), vsnprintf(), vfscanf(), vscanf(), vsscanf()
  * hh, j, z and t printf length modifiers (indicating char, intmax_t, size_t
    and ptrdiff_t respectively)
  * Hexadecimal floating-point printing and scanning (%a/%A)
  * %F printf() specifier (upper-case form of %F)
  * Input/output of NaNs and Infinities
  * imaxdiv_t, imaxdiv(), strtoimax(), strtoumax() (simulated through macros)
  * <fenv.h>: feclearexcept(), fegetexceptflag(), feraiseexcept(),
              fesetexceptflag(), fetestexcept(), fegetround(), fesetround(),
              fegetenv(), feholdexcept(), fesetenv(), feupdateenv()
  * FLT_EVAL_METHOD, DECIMAL_DIG
  * hypot(), hypotf(), fabsf(), fdim(), fdimf(), fmax(), fmaxf(), fmin(),
    fminf()
  * INFINITY, NAN, fpclassify(), isfinite(), isinf(), isnan(), isnormal(),
    signbit(), copysign(), copysignf(), nan(), nanf(), nextafter(),
    nextafterf() isgreater(), isgreaterequal(), isless(), islessequal(),
    islessgreater(), isunordered()

This involves adding 36 new entries to the stubs. Current versions of the C
library will not fault client programs with such larger stubs, but will fill
in the extra entries with junk. Programs requiring the new functions will have
to RMEnsure this version of the Shared C Library.

This version of the C library has been fixed so that in future, any extra
unknown stubs entries will be filled in with a branch to zero, rather than
corrupted.

Requires cc 5.41 or later, both to build, and to make use of some of the extra
facilities.


Version 5.37. Tagged as 'RISC_OSLib-5_37'

  Modulewrapped modules will now have the correct 32-bitness flag.
Admin:
  Built.

Version 5.23. Tagged as 'RISC_OSLib-5_23'

Second attempt at getting 32-bit overlay manager to work.

Version 5.21. Tagged as 'RISC_OSLib-5_21'

* First attempt at a working 32-bit overlay manager. Untested.

Version 5.19. Not tagged

* Correction to static base location in modulewrap - was affecting some
  DSL 4000 video software.

Version 5.15. Tagged as 'RISC_OSLib-5_15'

C library now has a default message for C71 (Calling standard no longer supported), so you get a meaningful message if soft-loading a new version.

No code changes.

Version 5.10. Tagged as 'RISC_OSLib-5_10'

Version 5.06. Tagged as 'RISC_OSLib-5_06'

Version 5.05. Not tagged

Detail:
  UsePathForHelpMessages switch added - if the symbol is defined, Messages
  are obtained from <AppName>:Messages, requiring an <AppName>$Path system
  variable. Previously, they were always fetched from Resources which is
  only correct if the module is in ROM. This only influences the ability to
  give sensible *help output for *help Desktop_<AppName>. In addition, KJB
  added code to export the module private word pointer as
  'module_private_word_ptr'.
Admin:
  Tested inside PlugPlay RAM module build.

Version 5.05. Tagged as 'RISC_OSLib-5_05'

Detail:
  New script will search the export directory for headers that should
    be exported SWI symbols for it and only cause them to be included
    if it finds the header file.  This means that unless a component
    in your build actually needs the SWI symbols from another component,
    you no longer require that component to be in your modules file
    purely to enable successful generation of swis.h
Admin:
  Test build performed.

Version 5.03. Tagged as 'RISC_OSLib-5_03'

Detail:
  The Makefile now performs a diff of CLIB:h.swis and derived.swis
    in order to determine whether it needs to export the header or
    not.  This can save compilation time if the header file has not
    changed since it used to cause virtually all C code to recompile.
  s/makeswish now imports Hdr:Machine.<Machine> and executes $GetIO
    to ensure that the Portable module header export functions
    correctly.
Admin:
  Tested.

Version 4.98. Tagged as 'RISC_OSLib-4_98'

It also copes with STFE now - it was totally broken.
32-bit stubs and corresponding LibInit SWIs created.
All rather untested.

Version 4.97, 4.12.2.3. Tagged as 'RISC_OSLib-4_97-4_12_2_3'

  Moved template for swis.h out of asm source into separate text file.
Detail:
  s.makehswis: The text which forms the common header for the derived
    swis.h is now stored externally rather than declared inline with
    assembler directives.
  h.swisheaders: The external file containing the common header.
    Now wraps the declarations of _swi and _swix with "#pragma -v4"
    to activate the _swi/_swix parameter checking for those functions.
  Makefile: Added dependency of derived.swis on h.swisheader
Admin:
  Built and exported.  Tested with cc 5.09 and it was happy with the
  new pragma (it ignores it).  Tested with what will be cc 5.10 and
  it recognised it and started checking _swi and _swix calls.

Version 4.90. Tagged as 'RISC_OSLib-4_90'

StrongARMfudge flag removed.
StrongARM compatibility set according to AMBKernel flag in Hdr:RISCOS
strftime %U and %W specifiers fixed for week 0.

Version 4.89. Tagged as 'RISC_OSLib-4_89'

Merged Spinner branch changes onto trunk (new RCA messages files and Makefile changes). Convert to srccommit while we're at it.

Removed a few $Revision's to prevent future spurious merge clashes.

Version 4.87. Tagged as 'RISC_OSLib-4_87'

If a module written in C uses function getenv, buffer space
is allocated in the RMA. This buffer was never freed, leading
to RMA leakage when the module was 'RMKill'ed or 'RMReInit'ed.

Changes

 c.armsys
   added function _terminate_getenv to free the buffer

 c.stdlib
   added flag getenv_finalised to the exit_s structure

   initialised getenv_finalised in function _exit_init

   atexit tests getenv_finalised, calls _terminate_getenv

 s.version
   version string changed to 4.86 (27 Jul 1998)