Re: Multi-threaded dwarf parsing

Jan Kratochvil
2016-02-24T20:25:25Z

On Wed, 24 Feb 2016 17:43:03 +0100, Simon Marchi wrote:
> instead of blocking on the psymtabs creation at startup
[...]
> then the main code will have to block until the corresponding task is
> complete (dwarf2_require_psymtabs).

If really your concern are psymtabs then use Tom's .gdb_index:
gdb/contrib/gdb-add-index.sh

With .gdb_index GDB still has startup performance problems during full CU
expansions, that is struct symtab and struct symbol. That happens with C++
inferiors which have very interlinked CUs and thus expanding one CU means for
GDB expanding 100+ CUs due to the inter-type dependencies which cannot be left
opaque in such cases. And as each C++ CU is usually very large...

Jan