[PATCH v2 0/2] PR c++/21323: char16_t/char32_t/wchar_t built-in C++ types

[Pedro Alves <palves@redhat.com>]

This series fixes PR c++/21323, a bug report that shows that GDB
thinks C++11's char16_t and char32_t built-in types are signed, while
the standard clearly says they're unsigned.

While working on it, I noticed that GDB isn't aware that wchar_t is a
built-in type in C++ either (and it was already the case in C++98).
The second patch fixes that.

Tested on x86_64 Fedora 23.

New in v2:

 - Make the tests a bit more lax when testing C/C++98, WRT to the
   underlying type of char16_t/char32_t - accept any of unsigned
   long/short/int.

 - Go through all ports and override wchar_t size/sign appropriately.

Pedro Alves (2):
  Fix PR c++/21323: GDB thinks char16_t and char32_t are signed in C++
  Teach GDB that wchar_t is a built-in type in C++ mode

 gdb/aarch64-tdep.c                       |   2 +
 gdb/alpha-tdep.c                         |   2 +
 gdb/arm-tdep.c                           |   7 ++
 gdb/avr-tdep.c                           |   3 +
 gdb/c-lang.c                             |   9 ++
 gdb/dwarf2read.c                         |  19 +++-
 gdb/gdbarch.c                            |  48 ++++++++
 gdb/gdbarch.h                            |  11 ++
 gdb/gdbarch.sh                           |   6 +
 gdb/gdbtypes.c                           |   8 +-
 gdb/gdbtypes.h                           |   1 +
 gdb/h8300-tdep.c                         |   4 +
 gdb/i386-nto-tdep.c                      |   3 +
 gdb/m32r-tdep.c                          |   3 +
 gdb/moxie-tdep.c                         |   3 +
 gdb/nds32-tdep.c                         |   3 +
 gdb/rs6000-aix-tdep.c                    |   5 +
 gdb/sh-tdep.c                            |   4 +
 gdb/sparc-tdep.c                         |   3 +
 gdb/sparc64-tdep.c                       |   3 +
 gdb/testsuite/gdb.cp/wide_char_types.c   |  30 +++++
 gdb/testsuite/gdb.cp/wide_char_types.exp | 181 +++++++++++++++++++++++++++++++
 gdb/windows-tdep.c                       |   3 +
 gdb/xstormy16-tdep.c                     |   3 +
 gdb/xtensa-tdep.c                        |   3 +
 25 files changed, 361 insertions(+), 6 deletions(-)
 create mode 100644 gdb/testsuite/gdb.cp/wide_char_types.c
 create mode 100644 gdb/testsuite/gdb.cp/wide_char_types.exp

-- 
2.5.5