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| author | Tom Tromey <tom@tromey.com> | 2016-11-13 20:56:34 -0700 |
|---|---|---|
| committer | Tom Tromey <tom@tromey.com> | 2016-12-02 09:11:47 -0700 |
| commit | 0c1b455e294c6debb4efedc7f1346f3c43249f15 (patch) | |
| tree | 99ae140e176b22fcf27a04f7d538e721d5810482 /bfd | |
| parent | f5ac6ab387ef0974f6348ac7febc691fbb6c0eb4 (diff) | |
| download | gdb-0c1b455e294c6debb4efedc7f1346f3c43249f15.zip gdb-0c1b455e294c6debb4efedc7f1346f3c43249f15.tar.gz gdb-0c1b455e294c6debb4efedc7f1346f3c43249f15.tar.bz2 | |
PR symtab/16264 - support DW_AT_main_subprogram
This patch adds support for DW_AT_main_subprogram.
This is PR symtab/16264.
DW_AT_main_subprogram is used to mark a program's entry point. GCC
can emit this, and I hope to change the Rust compiler to emit it as
well.
GDB already supports an older, pre-DWARF 4 convention adopted by
FORTRAN compilers, namely to emit DW_AT_calling_convention for the
"main" function. However, I think this support in GDB had a small
bug, in that it seems to rely on the DW_AT_name being read before
DW_AT_calling_convention. This patch fixes this as well.
Built and regtested on x86-64 Fedora 24 and the buildbot. New test
case included.
2016-12-02 Tom Tromey <tom@tromey.com>
PR symtab/16264:
* dwarf2read.c (struct partial_die_info) <main_subprogram>: New
member.
(add_partial_symbol): Call set_objfile_main_name.
(read_partial_die): Handle DW_AT_main_subprogram.
<DW_AT_calling_convention>: don't call set_objfile_main_name, but
set main_subprogram flag.
2016-12-02 Tom Tromey <tom@tromey.com>
* gdb.dwarf2/main-subprogram.c: New file.
* gdb.dwarf2/main-subprogram.exp: New file.
Diffstat (limited to 'bfd')
0 files changed, 0 insertions, 0 deletions