[parrot/parrot] 900257: [cage] Fix some more compiler attributes, disable ...

[GitHub]

  Branch: refs/heads/smoke-me/attributes-gh1163
  Home:   https://github.com/parrot/parrot
  Commit: 90025716efcb3b588cd3dca5fd0acde68bc5f599
      https://github.com/parrot/parrot/commit/90025716efcb3b588cd3dca5fd0acde68bc5f599
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2014-12-31 (Wed, 31 Dec 2014)

  Changed paths:
    M compilers/imcc/imc.h
    M include/parrot/compiler.h
    M include/parrot/io.h
    M include/parrot/string_funcs.h
    M lib/Parrot/Headerizer.pm
    M lib/Parrot/Headerizer/Functions.pm
    M tools/dev/pbc_to_exe.winxed

  Log Message:
  -----------
  [cage] Fix some more compiler attributes, disable gcc returns_nonnull

Found a new unknown gcc bug with __attribute__((returns_nonnull)), tested ok
with MSVC and clang.  Will be hard to track down where in gimple and in
which of our function exactly.

Add the _Check_return_ MSVC SAL variant,
the new _Ret_maybenull_ variant which replaces __maybenull not yet.

Remove one more wrong PARROT_CANNOT_RETURN_NULL in pbc_to_exe generation.

See GH #1163


  Commit: 3f688225fd355aa2407faad48678a6af6df6c6f2
      https://github.com/parrot/parrot/commit/3f688225fd355aa2407faad48678a6af6df6c6f2
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2014-12-31 (Wed, 31 Dec 2014)

  Changed paths:
    M include/parrot/io.h
    M include/parrot/packfile.h
    M src/io/api.c
    M src/packfile/api.c

  Log Message:
  -----------
  deprecations: add the DEPRECATED attribute to all deprecated functions

Several of the packfile API functions are still used by us.


  Commit: ebe2fba077670aefa7b9f43fdea0c564f87c9031
      https://github.com/parrot/parrot/commit/ebe2fba077670aefa7b9f43fdea0c564f87c9031
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2014-12-31 (Wed, 31 Dec 2014)

  Changed paths:
    M ChangeLog
    M config/auto/attributes.pm
    M config/auto/attributes/test_c.in
    M config/gen/config_h.pm
    M config/gen/config_h/has_header_h.in
    M include/parrot/compiler.h

  Log Message:
  -----------
  [config] move HASATTRIBUTE_* from ccflags to has_header.h

also undefine a HASATTRIBUTE_ on any warning or error.
override the gcc bugfix in compile.h for returns_nonnull in the probe,
so that the probe does not lie.

Closes GH #1163


Compare: https://github.com/parrot/parrot/compare/f723358c53d6...ebe2fba07767