From: "Ulrich Weigand" <uweigand@de.ibm.com>
To: aristovski@qnx.com
Cc: gdb-patches@sources.redhat.com
Subject: Re: [patch] nto target: fix null pointer dereference
Date: Tue, 12 Aug 2008 18:33:00 -0000 [thread overview]
Message-ID: <200808121832.m7CIWcIw018392@d12av02.megacenter.de.ibm.com> (raw)
Aleksandar Ristovski wrote:
>diff -u -p -r1.25 nto-tdep.c
>--- gdb/nto-tdep.c 23 Jul 2008 13:36:00 -0000 1.25
>+++ gdb/nto-tdep.c 12 Aug 2008 16:33:18 -0000
>@@ -266,6 +266,8 @@ LM_ADDR (struct so_list *so)
> {
> struct link_map_offsets *lmo = nto_fetch_link_map_offsets ();
>
>+ if (so->lm_info->lm == NULL)
>+ return 0;
> return extract_typed_address (so->lm_info->lm + lmo->l_addr_offset,
> builtin_type_void_data_ptr);
> }
I'm wondering how this can ever be NULL ... I understand nto
reuses the solib-svr4.c version of current_sos, which seems
to always initalize the lm member.
Can you explain what the situation is that leads to a NULL
pointer here?
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU Toolchain for Linux on System z and Cell BE
Ulrich.Weigand@de.ibm.com
next reply other threads:[~2008-08-12 18:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-12 18:33 Ulrich Weigand [this message]
2008-08-12 21:26 ` Aleksandar Ristovski
2008-08-12 21:32 ` Daniel Jacobowitz
2008-08-13 15:47 ` Aleksandar Ristovski
-- strict thread matches above, loose matches on Subject: below --
2008-08-14 20:51 Ulrich Weigand
2008-08-13 13:30 Ulrich Weigand
2008-08-13 15:50 ` Aleksandar Ristovski
2008-08-14 20:46 ` Aleksandar Ristovski
2008-08-12 16:38 Aleksandar Ristovski
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