GitLab

Version 5.46, 4.64.2.1. Tagged as 'RISC_OSLib-5_46-4_64_2_1'

* _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'

  * 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'

Version 5.36. Tagged as 'RISC_OSLib-5_36'

* Fixed C library tty so it can output '\b' (backspace).
* Made offsetof() and va_arg() macros work with C++.

Version 5.34. Tagged as 'RISC_OSLib-5_34'

  Fix for RISC_OSLib res() function.
Detail:
  Version 4.89 featured an improved strcmp() routine that didn't actually
    work properly (bug #4085).  The return values had the wrong sign if this
    optimised code was used and the string contained top-bit set chars.
  Removed that rlib.s.asmdefs hack as the comment in the makefile suggested.
    Nothing needs it any more as the assembler sources that require it now
    get via a -PD argument.
  res_ prefix function was still wrong as it failed to detect valid but wrong
    filenames, hence the "Make$Path not defined" errors in the latest tools
    release.
Admin:
  Fixes Bugzilla bug #4085
  Should fix BaseSW's build problems too.

Version 5.29. Tagged as 'RISC_OSLib-5_29'

  Module library builds of RISC_OSLib are exported during export_libs
Detail:
  Ever since res_findname was altered to use <appname>:<resourcename> as
    the filename, the !C++ tool has been broken, because C++:Messages
    returns a different error to "not found" when you try to open it (it
    says it is an invalid filename).  This error is now caught explicitly
    and res_findname falls back to using <appname$Dir>.<resourcename>
    like it did before.
Admin:
  Required by FrontEnd 1.21 or later.
  Required by !C++ (c++cmd-3_17 or later to function correctly)

Version 5.28. Tagged as 'RISC_OSLib-5_28'

Detail:
  The BBE export rules for this component are fairly complex.  The rom_link
    bbe rule is overridden in its entirety by clib.rom_link_v as the symbol
    definitions need to be generated and exported during the rom_link phase.
Admin:
  Tested in BBE build; does not affect other builds.

Version 5.26. Tagged as 'RISC_OSLib-5_26'

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

  Fixed bug in getenv() relating to macro and numeric system variables.
Detail:
  Uses SYMDEFS file to avoid messing around with generating little text
    files, generating assembler source, assembling it etc.  abssym et al
    are construct as symbol definition template files and then updated
    directly by the linker ready for export.  The linker can use these
    files directly without needing them to be assembled into AOF format.
  Fixed getenv so that it can read macro and numeric variables.  With these
    variable types, R2 does not equal -length of the variable value, so
    trying to obtain a variable with a larger value than any previously
    read variable would fail.  This is now fixed.
  This module will refuse to build without link 5.19 or later.
Admin:
  Requires Library 0.54 or later.

  This component will not build with Library 0.53 or earlier.

Version 5.16. Tagged as 'RISC_OSLib-5_16'

Detail:
  Due to a dependency cockup, the C library wasn't being relinked properly
    during rom_link, so all the symbols exported in abssym files pointed
    to the locations the previous build was linked at.  This is now fixed
    by the addition of a new pseudo-target.
Admin:
  Tested clean and incremental build and verified the abssym file.
  Checked the build log to ensure relinking was occurring.
  Versions 5.11 and 5.12 of this component are fundamentally flawed.

Version 5.13. Tagged as 'RISC_OSLib-5_13'

Detail:
  This component now supports multiple TARGETs being passed in:
    Pass in CLib for a minimal C library excluding RISC_OSLib.
    Pass in RISC_OSLib to continue to build the full thing.
  BuildSys will be modified to make SharedCLibrary build ONLY
    the minimal library - this may mean that products that are
    to be updated may have to alter their components file to
    take the new SharedRISC_OSLib component instead of the
    SharedCLibrary target.
  syms.A_Entries is now automatically generated from C_Entries
    because this is the easiest way to generate the file.  If
    extra symbols are added to C_Entries, they will need to be
    removed by the egrep command which strips out _swi and _swix.
  Makefile tidied to be more careful about ${COMPONENT} and ${TARGET}
  clean_all rule improved to really clean things properly.
Admin:
  Tested in STB400-2M build and on desktop build.
  Requires BuildSys-2_41 or later.

Version 5.11. Tagged as 'RISC_OSLib-5_11'

Version 5.06. Tagged as 'RISC_OSLib-5_06'

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:
  amu cleverly sets Sys$ReturnCode to zero just prior to executing
    any command from the Makefile, hence checking for Sys$ReturnCode
    does not work.  Script changed to look for AMU$ReturnCode which
    is (in amu 5.06 and later) the return code of the previous command.
    However, since the variable will not be set by earlier versions of
    amu, the behaviour of always copying the file will return until
    amu 5.06 appears in the build.
Admin:
  Tested manually.

Version 4.99. Tagged as 'RISC_OSLib-4_99'

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'

  Added protection for cfront inclusion of stdint.h to ensure
    inclusion is faulted.
Admin:
  Tested.
  Sources which are compiled -fussy will require Norcroft cc version
    5.11 or later in order to avoid the warning about the use of an
    undefined macro in an #if pre-processor statement and to avoid
    the non-ANSI include warning.

Version 4.94. Tagged as 'RISC_OSLib-4_94'

A feeble hack to get Edit to display Japanese, plus a more serious attempt
that doesn't work, compiled out.

Version 4.91. Tagged as 'RISC_OSLib-4_91'

  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'