From: Bartosz Nitka <niteria@gmail.com>
To: Yao Qi <qiyaoltc@gmail.com>
Cc: GDB Patches <gdb-patches@sourceware.org>
Subject: Re: [PATCH v3 0/1] Don't rewind PC for GHC generated frames
Date: Mon, 19 Feb 2018 13:27:00 -0000 [thread overview]
Message-ID: <CAOSxnRhgwzKxAggsMcLNdyus9+VxNDJ409qna6ebORVXW7Ojyw@mail.gmail.com> (raw)
In-Reply-To: <CAH=s-PO4U2J5Y-pLwxDMkEtj_SxWuqwSY24=AAUamFEaK+snBw@mail.gmail.com>
Hi Yao,
Thanks for taking a look.
I agree that GHC should use DW_LNS_set_column and I will try to see
what I can do about that.
My understanding is that DW_TAG_ghc_src_note was introduced because we
don't get enough
fidelity with DW_LNS_set_column. I think it's because we have ranges
for expression locations, and
sometimes the start points overlap, but I'm a bit hazy on the details.
I want to try DW_LNS_set_column and see how far I get with that.
One thing I don't understand is why lldb seems to understand
DW_TAG_ghc_src_note. I need to investigate a bit more.
Thanks,
Bartosz
prev parent reply other threads:[~2018-02-19 13:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-04 0:07 Bartosz Nitka
2018-02-04 0:07 ` [PATCH v3 1/1] " Bartosz Nitka
2018-02-12 12:35 ` Bartosz Nitka
2018-02-12 15:44 ` Simon Marchi
2018-02-19 13:10 ` Bartosz Nitka
2018-02-19 17:02 ` Simon Marchi
2018-02-12 13:50 ` [PATCH v3 0/1] " Yao Qi
2018-02-12 14:14 ` Bartosz Nitka
2018-02-12 14:42 ` Yao Qi
2018-02-19 13:27 ` Bartosz Nitka [this message]
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