On Mon, 28 Jul 2014, Herman, Andrei wrote:
> Please find attached the fixed patch files for this change:
> 1. Add command line option -fforce-dwarf-lexical-blocks.
> 2. Support flag_force_dwarf_blocks in C.
The front-end parts of these patches are OK with the changes indicated
below if the non-front-end parts are approved.
> + /* The -fforce-dwarf-lexical-blocks option is only relevant when debug
> + info is in DWARF4 format. */
> + if (flag_force_dwarf_blocks)
> + {
> + if (write_symbols != DWARF2_DEBUG)
> + flag_force_dwarf_blocks = 0;
> + if (write_symbols == DWARF2_DEBUG && dwarf_version < 4)
> + {
> + inform (input_location,
> + "-fforce-dwarf-lexical-blocks is only supported with "
> + "DWARF4 debug format");
> + flag_force_dwarf_blocks = 0;
> + }
> + }
If it's deliberate not to give the diagnostic for write_symbols !=
DWARF2_DEBUG, please add a comment explaining why the diagnostic is not
given in that case.
> +fforce-dwarf-lexical-blocks
> +C C++ Var(flag_force_dwarf_blocks)
> +Force generation of lexical blocks in DWARF output
As previously noted, should also be enabled for ObjC and ObjC++ unless
there is a clear reason not to do so.
> +/* Information about a statement list created for a label (is_label=true)
> + or for a forced c99 scope. The -fforce-dwarf-lexical-blocks will
"The -fforce-dwarf-lexical-blocks option".
--
Joseph S. Myers
[email protected]
