This is the mail archive of the gdb@sourceware.org mailing list for the GDB project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [hpux] interesting but difficult to unwind code

From: Randolph Chung <randolph at tausq dot org>
To: Carl Burch <cdb at cup dot hp dot com>
Cc: gdb at sources dot redhat dot com, brobecker at adacore dot com, dave at hiauly1 dot hia dot nrc dot ca
Date: Sun, 11 Dec 2005 22:44:58 +0800
Subject: Re: [hpux] interesting but difficult to unwind code
References: <200512091847.KAA08575@adlwrk03.cup.hp.com>

If you have our odump tool, "odump -comp a.out" will show you the compiler and options used to build each object for a PA32 executable :

thanks.

   There are two bits in the "struct unwind_table_entry" defined in
config/pa/tm-hppa.h (at least in the WDB sources) that cover alloca() use
and +Oentrysched use:

    unsigned int sched_entry_seq:1;     /* 25 */
		...
    unsigned int alloca_frame:1;        /* 35 */

Unfortunately, even HP gdb doesn't print out those fields for a "maintenance
print unwind" command.

I'll fix this this FSF gdb. Thanks for pointing this out!

Meanwhile with these pointers I've fixed the unwinding problem described previously in my local tree. Will do some more testing and send the patch to gdb-patches. Thanks for your help Carl.

randolph

References:
- Re: [hpux] interesting but difficult to unwind code
  - From: Carl Burch

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]