[Bug debug/38757] gcc does not emit DW_LANG_C99

["mark at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38757

--- Comment #8 from Mark Wielaard <mark at gcc dot gnu.org> ---
Author: mark
Date: Wed Nov 26 11:05:20 2014
New Revision: 218077

URL: https://gcc.gnu.org/viewcvs?rev=218077&root=gcc&view=rev
Log:
PR debug/38757 continued. Handle C11, C++11 and C++14.

Add experimental (minimal) DWARFv5 support.

This change depends on the new DWARFv5 constants mentioned in the
following draft: http://dwarfstd.org/doc/dwarf5.20141029.pdf

gcc/ChangeLog

    * doc/invoke.texi (-gdwarf-@{version}): Mention experimental DWARFv5.
    * opts.c (common_handle_option): Accept -gdwarf-5.
    * dwarf2out.c (is_cxx): Add DW_LANG_C_plus_plus_11 and
    DW_LANG_C_plus_plus_14.
    (lower_bound_default): Likewise. Plus DW_LANG_C11.
    (gen_compile_unit_die): Output DW_LANG_C_plus_plus_11,
    DW_LANG_C_plus_plus_14 or DW_LANG_C11.
    (output_compilation_unit_header): Output at most a DWARFv4 header.
    (output_skeleton_debug_sections): Likewise.
    (output_line_info): Likewise.
    (output_aranges): Document header version number.

gcc/testsuite/ChangeLog

    * gcc.dg/debug/dwarf2/lang-c11.c: New test.
    * gcc.dg/debug/dwarf2/lang-c11-d4-strict.c: Likewise.
    * g++.dg/debug/dwarf2/lang-cpp11.C: Likewise.
    * g++.dg/debug/dwarf2/lang-cpp14.C: Likewise.
    * g++.dg/debug/dwarf2/lang-cpp98.C: Likewise.

include/ChangeLog

    * dwarf2.h: Add DW_LANG_C_plus_plus_11, DW_LANG_C11 and
    DW_LANG_C_plus_plus_14.

Added:
    trunk/gcc/testsuite/g++.dg/debug/dwarf2/lang-cpp11.C
    trunk/gcc/testsuite/g++.dg/debug/dwarf2/lang-cpp14.C
    trunk/gcc/testsuite/g++.dg/debug/dwarf2/lang-cpp98.C
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/lang-c11-d4-strict.c
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/lang-c11.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi
    trunk/gcc/dwarf2out.c
    trunk/gcc/opts.c
    trunk/gcc/testsuite/ChangeLog
    trunk/include/ChangeLog
    trunk/include/dwarf2.h