corelow and threads question
Aleksandar Ristovski
aristovski@qnx.com
Wed Jun 10 20:38:00 GMT 2009
Thanks for replying.
Ok, then I think what you wanted to commit works for me (I
am talking about:
http://sourceware.org/ml/gdb-patches/2009-06/msg00112.html).
As for extra thread info, I guess if we have
"core_pid_to_str" to be a thing of architecture, then extra
thread info from core fits there too.
But I am still not happy about having to expand gdbarch
whenever I have something specific to my architecture for a
particular stratum - maybe it does belong there but the
target stack mechanism seems attractive for using in
"fine-tuning" existing targets ("strata"). This will really
lead us to having target_ops functions per each predefined
strata in gdbarch (i.e. customization for core, for process,
for thread...)
I was playing (in my head) with idea of defining new
"gdbarch_stratum" that would be used on top of other
strata... for example, having one gdbarch_stratum per
defined stratum (i.e. gdbarch_stratum+file_stratum - to
allow gdbarch customize file_stratum, gdbarch_stratum +
core_stratum for customizing core stuff, etc...); we would
have to "spread" stratums in "strata" enum and insert
gdbarch_ versions above correspoinding strata... that way I
could really customize each of the strata for my
architecture only by overriding corresponding _ops functions
without having to add new function to gdbarch interface and
regenerating gdbarch files.
Something like this (just an illustration):
enum strata
{
dumm_stratum = 0,
gdbarch_stratum = 1,
file_stratum = 2,
core_stratum = 4,
process_stratum = 6,
thread_stratum = 8,
record_stratum = 10
};
Then I would be able to "inject" my:
...
nto_core_ops.to_stratum = gdbarch_stratum + core_stratum;
/* But NO add_target(&nto_core_ops); */
...
Then, somewhere in core_open:
/* insert gdbarch specific core stratum just above
core_stratum */
if (gdbarch_has_stratum (gdbarch_stratum + core_stratum))
push_target (gdbarch_stratum (gdbarch_stratum +
core_stratum));
Thanks,
--
Aleksandar Ristovski
QNX Software Systems
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