From: John Baldwin <jhb@FreeBSD.org>
To: Simon Marchi <simon.marchi@polymtl.ca>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 3/9] Handle TLS variable lookups when using separate debug object files.
Date: Tue, 05 Feb 2019 22:33:00 -0000 [thread overview]
Message-ID: <10dfaac6-0119-4f9f-666d-89fe7d8fb6cb@FreeBSD.org> (raw)
In-Reply-To: <e103f8ff-5527-4a77-84a9-5b72e5fc55c8@FreeBSD.org>
On 2/5/19 2:21 PM, John Baldwin wrote:
> So it seems that the OP_VAR_VALUE path calls down into the dwarf bits that
> get the "original" objfile to pass to target_translate_tls_address, whereas
> the OP_VAR_MSYM_VALUE case ends up using a separate object file. This might
> in fact be due to bugs in the RISCV GCC backend as the TLS symbols for RISCV
> don't seem quite right. I have to cast TLS variables to their types for
> example:
>
> (gdb) p __je_tsd_initialized
> '__je_tsd_initialized` has unknown type; cast it to its declared type
> (gdb) p (bool)__je_tsd_initialized
> $2 = 1 '\001'
>
> Also, for me TLS variables in the main executable did not work for me on
> RISCV, only TLS variables in shared libraries, unlike on other architectures
> I tested where TLS variables in both the executable and shared libraries
> worked.
I should have said: I think this means I probably need to rework the commit
message a bit to explain that this doesn't always happen with separate
debug files, but it can, and if so this fix is needed.
--
John Baldwin
                                                                           Â
next prev parent reply other threads:[~2019-02-05 22:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-22 18:43 [PATCH 0/9] Support for thread-local variables on FreeBSD John Baldwin
2019-01-22 18:43 ` [PATCH 3/9] Handle TLS variable lookups when using separate debug object files John Baldwin
2019-02-02 15:52 ` Simon Marchi
2019-02-04 20:02 ` John Baldwin
2019-02-05 20:06 ` Simon Marchi
2019-02-05 22:21 ` John Baldwin
2019-02-05 22:33 ` John Baldwin [this message]
2019-02-07 4:05 ` Simon Marchi
2019-02-07 4:08 ` Simon Marchi
2019-01-22 18:43 ` [PATCH 9/9] Support TLS variables on FreeBSD/powerpc John Baldwin
2019-01-22 18:43 ` [PATCH 7/9] Support TLS variables on FreeBSD/i386 John Baldwin
2019-01-22 18:43 ` [PATCH 2/9] Support fs_base and gs_base " John Baldwin
2019-02-02 15:26 ` Simon Marchi
2019-02-04 19:45 ` John Baldwin
2019-02-05 18:59 ` Simon Marchi
2019-01-22 18:43 ` [PATCH 6/9] Support TLS variables on FreeBSD/amd64 John Baldwin
2019-01-22 18:43 ` [PATCH 1/9] Support the fs_base and gs_base registers on i386 John Baldwin
2019-01-27 4:22 ` Simon Marchi
2019-01-28 17:54 ` John Baldwin
2019-02-02 15:11 ` Simon Marchi
2019-01-22 18:52 ` [PATCH 4/9] Add a new gdbarch method to resolve the address of TLS variables John Baldwin
2019-01-22 18:52 ` [PATCH 5/9] Add a helper function to resolve TLS variable addresses for FreeBSD John Baldwin
2019-01-24 17:09 ` John Baldwin
2019-02-07 5:05 ` Simon Marchi
2019-02-07 17:02 ` John Baldwin
2019-02-09 0:34 ` John Baldwin
2019-01-22 18:52 ` [PATCH 8/9] Support TLS variables on FreeBSD/riscv John Baldwin
2019-01-27 23:35 ` Andrew Burgess
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=10dfaac6-0119-4f9f-666d-89fe7d8fb6cb@FreeBSD.org \
--to=jhb@freebsd.org \
--cc=gdb-patches@sourceware.org \
--cc=simon.marchi@polymtl.ca \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).