From: John David Anglin <dave.anglin@bell.net>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: GNU C Library <libc-alpha@sourceware.org>,
Carlos O'Donell <carlos@systemhalted.org>
Subject: Re: [committed] Return to caller when _dl_fixup fails on hppa
Date: Sun, 16 Jul 2017 19:46:00 -0000 [thread overview]
Message-ID: <140DEBFA-778E-4912-853A-74DE078A95F5@bell.net> (raw)
In-Reply-To: <87r2xggqnr.fsf@linux-m68k.org>
On 2017-07-16, at 2:52 PM, Andreas Schwab wrote:
> On Jul 16 2017, John David Anglin <dave.anglin@bell.net> wrote:
>
>> The most problematic function in this regard is __gmon_start__.
>
> The caller needs to check for NULL before calling it.
That's assumed. However, it doesn't work on hppa. The caller has access to a non NULL pointer
to a function descriptor. In the typical case with deferred binding, the function pointer is not resolved
until _dl_fixup is called.
Dave
--
John David Anglin dave.anglin@bell.net
next prev parent reply other threads:[~2017-07-16 19:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-16 17:50 John David Anglin
2017-07-16 18:53 ` Andreas Schwab
2017-07-16 19:46 ` John David Anglin [this message]
2017-07-16 21:31 ` Andreas Schwab
2017-07-16 22:02 ` John David Anglin
2017-07-17 7:10 ` Andreas Schwab
2017-07-17 11:11 ` Carlos O'Donell
2017-07-17 11:52 ` John David Anglin
2017-07-23 23:58 ` John David Anglin
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