From: David Lecomber <david@lecomber.net>
To: Daniel Jacobowitz <drow@false.org>
Cc: gdb <gdb@sources.redhat.com>
Subject: Re: Laziness
Date: Mon, 10 Oct 2005 21:24:00 -0000 [thread overview]
Message-ID: <1128980539.13892.30.camel@cpc2-oxfd8-3-0-cust199.oxfd.cable.ntl.com> (raw)
In-Reply-To: <20051010210945.GA6154@nevyn.them.org>
On Mon, 2005-10-10 at 17:09 -0400, Daniel Jacobowitz wrote:
>
> No, as they're read in, one at a time, and compared to the previous
> element.
Err, but I don't think they are. I should've included the top of my
stack:
#1 0x00b3cb1a in ptrace () from /lib/libc.so.6
#2 0x0809512a in child_xfer_memory (memaddr=3207201336,
myaddr=0xb5e49048 "", len=8000000, write=0, attrib=0x0,
target=0x8299460) at infptrace.c:437
#3 0x08095766 in child_xfer_partial (ops=0x8299460,
object=TARGET_OBJECT_MEMORY, annex=0x0,
readbuf=0xb5e49048 "", writebuf=0x0, offset=The value of variable
'offset' is distributed across several
locations, and GDB cannot access its value.
) at inftarg.c:541
#4 0x0807eaa7 in target_xfer_partial (ops=0x8299460,
object=TARGET_OBJECT_MEMORY, annex=0x0, readbuf=0xb5e49048,
writebuf=0x0, offset=3207201336, len=The value of variable 'len' is
distributed across several
locations, and GDB cannot access its value.
) at target.c:863
#5 0x0807ec9f in xfer_using_stratum (object=TARGET_OBJECT_MEMORY,
annex=0x0, offset=3207201336, len=The value of variable 'len' is
distributed across several
locations, and GDB cannot access its value.
)
at target.c:950
#6 0x0807f37b in target_read_memory (memaddr=3207201336,
myaddr=0xb5e49048 "", len=8000000) at target.c:1000
#7 0x08084a5a in read_memory (memaddr=3207201336, myaddr=0xb5e49048 "",
len=8000000) at corefile.c:239
#8 0x080e2509 in value_fetch_lazy (val=0xb5e49008) at valops.c:515
#9 0x080dc4fb in value_contents_all (value=0xb5e49008) at value.c:331
#10 0x08167551 in c_value_print (val=0xb5e49008, stream=0x91ea940,
format=0, pretty=Val_pretty_default)
at c-valprint.c:596
#11 0x080eb0f4 in print_formatted (val=0xb5e49008, format=0, size=0,
stream=0x91ea940) at .././gdb/printcmd.c:335
#12 0x080eb776 in output_command (exp=0x91ea9a7 "x", from_tty=1)
at .././gdb/printcmd.c:985
That value_contents_all and massive read is happening a good few seconds
before we start doing the repeated elements comparison in
val_print_array_elements..
--
David Lecomber <david@lecomber.net>
next prev parent reply other threads:[~2005-10-10 21:24 UTC|newest]
Thread overview: 211+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-10 20:46 Laziness David Lecomber
2005-10-10 20:50 ` Laziness Daniel Jacobowitz
2005-10-10 21:05 ` Laziness David Lecomber
2005-10-10 21:09 ` Laziness Daniel Jacobowitz
2005-10-10 21:24 ` David Lecomber [this message]
2005-10-10 21:27 ` Laziness Daniel Jacobowitz
2005-10-10 23:53 ` Laziness Paul Hilfinger
[not found] <200508292030.NAA29909@hpsje.cup.hp.com>
[not found] ` <1125360166.9350.69.camel@aretha.corp.specifix.com>
2005-08-30 1:13 ` HP gdb/wdb sources available Daniel Jacobowitz
2005-08-30 2:13 ` Paul Hilfinger
-- strict thread matches above, loose matches on Subject: below --
2004-10-26 14:49 backtrace changes current source location Felix Lee
2004-10-28 13:49 ` Daniel Jacobowitz
2004-10-06 1:03 Bumping MI protocol Bob Rossi
2004-10-06 5:08 ` Nathan J. Williams
2004-10-06 11:27 ` Bob Rossi
2004-10-06 12:30 ` Eli Zaretskii
2004-10-06 16:38 ` Bob Rossi
2004-10-06 16:45 ` Nathan J. Williams
2004-10-06 19:53 ` Bob Rossi
[not found] ` <eliz@gnu.org>
2004-10-06 16:57 ` Felix Lee
2004-10-06 17:03 ` Bob Rossi
2004-10-04 17:51 gdbserver, sysroot, prelink Felix Lee
2004-10-04 18:12 ` Daniel Jacobowitz
2004-10-03 17:15 probing GDB for MI versions Bob Rossi
2004-10-04 9:00 ` Eli Zaretskii
2004-10-04 13:19 ` Bob Rossi
2004-10-05 9:10 ` Eli Zaretskii
2004-10-05 12:34 ` Bob Rossi
2004-10-06 10:19 ` Eli Zaretskii
2004-10-06 11:47 ` Bob Rossi
2004-10-06 12:13 ` Dave Korn
2004-10-06 16:31 ` 'Bob Rossi'
2004-10-06 16:46 ` Nathan J. Williams
2004-10-06 16:55 ` 'Bob Rossi'
2004-10-06 17:04 ` Nathan J. Williams
2004-10-06 17:15 ` 'Bob Rossi'
2004-10-06 16:57 ` Dave Korn
2004-10-06 17:12 ` 'Bob Rossi'
2004-10-06 17:21 ` Dave Korn
2004-10-06 17:24 ` 'Bob Rossi'
2004-10-06 17:31 ` Daniel Jacobowitz
2004-10-06 17:38 ` Bob Rossi
2004-10-06 17:41 ` Dave Korn
2004-10-06 17:55 ` 'Bob Rossi'
2004-10-06 18:19 ` Paul Koning
2004-10-07 10:56 ` Dave Korn
2004-10-07 14:15 ` 'Bob Rossi'
2004-10-07 14:28 ` Dave Korn
2004-10-07 14:37 ` 'Bob Rossi'
2004-10-07 14:39 ` Dave Korn
2004-10-07 14:50 ` 'Bob Rossi'
2004-10-07 15:38 ` Dave Korn
2004-10-07 15:49 ` 'Bob Rossi'
2004-10-07 16:31 ` Nathan J. Williams
2004-10-07 16:45 ` Alain Magloire
2004-10-07 17:12 ` Dave Korn
[not found] ` <200410071614.MAA19648@smtp.ott.qnx.com>
2004-10-08 6:56 ` 'Bob Rossi'
2004-10-08 9:10 ` Eli Zaretskii
2004-10-10 18:13 ` 'Bob Rossi'
2004-10-11 17:46 ` 'Bob Rossi'
2004-10-13 12:14 ` 'Bob Rossi'
2004-10-13 12:48 ` Eli Zaretskii
2004-10-13 14:05 ` 'Bob Rossi'
2004-10-14 7:10 ` Eli Zaretskii
2004-10-14 19:34 ` 'Bob Rossi'
2004-10-14 21:23 ` Andrew Cagney
2004-10-15 15:40 ` 'Bob Rossi'
2004-10-15 13:02 ` Eli Zaretskii
2004-10-15 13:28 ` Michael Chastain
2004-10-15 13:42 ` Eli Zaretskii
2004-10-15 18:04 ` 'Bob Rossi'
2004-10-16 15:46 ` Eli Zaretskii
2004-10-16 21:56 ` 'Bob Rossi'
2004-10-17 18:59 ` Eli Zaretskii
2004-10-19 13:51 ` 'Bob Rossi'
2004-10-19 14:18 ` Daniel Jacobowitz
2004-10-19 19:28 ` Bob Rossi
2004-10-19 20:17 ` Eli Zaretskii
2004-10-06 18:43 ` Andrew Cagney
2004-10-06 18:54 ` 'Bob Rossi'
2004-10-06 19:19 ` Andrew Cagney
2004-10-06 19:25 ` 'Bob Rossi'
2004-10-06 17:36 ` Dave Korn
2004-10-06 17:51 ` Paul Koning
2004-10-06 18:09 ` Bob Rossi
2004-10-06 17:05 ` Alain Magloire
2004-10-06 19:16 ` Andrew Cagney
2004-10-06 19:20 ` Bob Rossi
2004-10-06 20:10 ` Alain Magloire
2004-10-06 20:15 ` Bob Rossi
2004-10-06 20:13 ` Andrew Cagney
2004-10-08 10:28 ` Eli Zaretskii
2004-10-08 18:48 ` Daniel Jacobowitz
[not found] <5956F1E2-EB0D-11D8-9949-000A9569836A@apple.com>
2004-08-11 0:51 ` GDB/XMI (XML Machine Interface) Chris Friesen
[not found] ` <gdb001@speakeasy.net>
2004-08-11 6:28 ` Felix Lee
2004-08-11 8:25 ` Chris Friesen
2004-08-11 22:43 ` Felix Lee
2004-08-12 4:54 ` OT: " Chris Friesen
2004-08-20 10:34 ` Felix Lee
2004-08-20 12:54 ` Bob Rossi
2004-08-20 18:34 ` Daniel Jacobowitz
2004-08-20 18:49 ` Bob Rossi
2004-08-20 18:52 ` Daniel Jacobowitz
2004-08-20 19:25 ` Bob Rossi
2004-08-20 19:42 ` Daniel Jacobowitz
2004-08-20 19:59 ` Bob Rossi
2004-08-21 10:25 ` Eli Zaretskii
2004-08-21 12:34 ` Bob Rossi
2004-08-21 13:34 ` Eli Zaretskii
[not found] ` <bob@brasko.net>
2004-08-20 18:20 ` Felix Lee
2004-08-20 21:34 ` Felix Lee
2004-08-21 19:21 ` Felix Lee
2004-08-21 20:21 ` Bob Rossi
2004-08-21 19:28 ` Felix Lee
2004-08-21 20:16 ` Bob Rossi
2004-08-21 21:28 ` Felix Lee
2004-08-21 22:37 ` Felix Lee
2004-10-03 18:36 ` GDB/MI snapshots between major release's Felix Lee
2004-10-03 18:40 ` Bob Rossi
2004-10-03 18:42 ` Daniel Jacobowitz
2004-10-03 19:35 ` Bob Rossi
2004-10-03 19:39 ` Felix Lee
2004-10-03 20:19 ` Bob Rossi
2004-10-04 5:00 ` Felix Lee
2004-10-04 15:34 ` Felix Lee
2004-10-04 15:58 ` Bob Rossi
2004-10-04 16:48 ` Felix Lee
2004-10-04 17:37 ` Bob Rossi
2004-10-04 18:31 ` Felix Lee
2004-10-04 19:00 ` Bob Rossi
2004-10-04 21:07 ` Felix Lee
2004-10-03 17:01 ` Bob Rossi
2004-10-04 5:04 ` Eli Zaretskii
2004-10-04 14:59 ` Bob Rossi
2004-10-04 15:49 ` Mark Kettenis
2004-10-04 16:04 ` Bob Rossi
2004-10-05 10:57 ` Eli Zaretskii
2004-10-05 14:18 ` Daniel Jacobowitz
2004-10-06 1:40 ` Bob Rossi
2004-10-06 11:14 ` Eli Zaretskii
2004-10-06 11:39 ` Bob Rossi
2004-10-06 13:19 ` Eli Zaretskii
2004-10-06 16:55 ` Bob Rossi
2004-10-06 17:00 ` Paul Koning
2004-10-06 17:02 ` Bob Rossi
2004-10-04 21:27 ` Daniel Jacobowitz
2004-10-04 22:14 ` Bob Rossi
2004-10-05 9:03 ` Fabian Cenedese
2004-10-05 9:18 ` Eli Zaretskii
2004-10-05 13:37 ` Bob Rossi
2004-10-05 18:53 ` probing GDB for MI versions Felix Lee
2004-10-06 17:14 ` GDB/MI snapshots between major release's Felix Lee
2004-10-06 17:21 ` Daniel Jacobowitz
2004-10-06 18:41 ` Felix Lee
2004-10-06 18:50 ` Bob Rossi
2004-10-06 18:55 ` Bumping MI protocol Felix Lee
2004-10-06 19:43 ` Bob Rossi
2004-10-06 21:04 ` Felix Lee
2004-10-07 18:01 ` probing GDB for MI versions Felix Lee
2004-10-07 19:44 ` Bob Rossi
2004-10-08 8:54 ` Fabian Cenedese
2004-10-19 20:13 ` Felix Lee
2004-10-19 20:23 ` Eli Zaretskii
2004-10-19 21:27 ` Bob Rossi
2004-11-09 2:27 ` Bob Rossi
2004-08-10 20:14 GDB/XMI (XML Machine Interface) Bob Rossi
2004-08-10 22:38 ` Kip Macy
2004-08-11 0:17 ` Michael Chastain
2004-08-11 7:36 ` Fabian Cenedese
2004-08-11 8:51 ` Nick NoSpam
2004-08-11 18:05 ` Bob Rossi
2004-08-11 19:26 ` Alain Magloire
2004-08-11 22:35 ` Jason Molenda
2004-08-12 13:03 ` Nick NoSpam
2004-08-19 23:49 ` Bob Rossi
2004-08-20 7:09 ` Chris Friesen
2004-08-20 12:47 ` Bob Rossi
2004-07-29 5:10 breaking at for-loop test line Allen Hopkins
2004-07-29 16:29 ` Daniel Jacobowitz
2004-07-29 18:58 ` Andre Ancelin
2004-07-30 11:32 ` Eli Zaretskii
2004-08-03 19:21 ` Daniel Jacobowitz
2004-08-03 20:09 ` Andrew Cagney
2004-08-03 20:21 ` Daniel Jacobowitz
2004-07-25 1:18 [proposal/testsuite] require build == host Michael Chastain
2004-07-25 1:52 ` Felix Lee
2004-07-25 2:43 ` Daniel Jacobowitz
[not found] ` <drow@false.org>
2004-07-25 22:36 ` Felix Lee
2004-07-26 18:07 ` Michael Chastain
2004-07-27 4:41 ` Felix Lee
2004-07-29 22:21 ` breaking at for-loop test line Felix Lee
2004-07-30 8:23 ` Baurjan Ismagulov
[not found] ` <ibr@ata.cs.hun.edu.tr>
2004-07-30 10:46 ` Felix Lee
2004-08-03 18:53 ` Daniel Jacobowitz
2004-08-20 19:06 ` GDB/XMI (XML Machine Interface) Felix Lee
2004-08-20 19:09 ` Daniel Jacobowitz
2004-08-20 19:20 ` Felix Lee
2004-08-21 12:37 ` Bob Rossi
2004-10-04 19:05 ` gdbserver, sysroot, prelink Felix Lee
2004-10-04 19:24 ` Daniel Jacobowitz
2004-10-05 13:03 ` Andrew Cagney
2004-10-05 13:52 ` Daniel Jacobowitz
2004-10-05 13:53 ` Felix Lee
2004-10-06 17:58 ` GDB/MI snapshots between major release's Felix Lee
2004-10-29 8:32 ` backtrace changes current source location Felix Lee
2004-07-25 7:59 ` [proposal/testsuite] require build == host Eli Zaretskii
2004-07-27 0:45 ` Andrew Cagney
2004-07-27 2:31 ` Michael Chastain
2004-07-27 4:16 ` Eli Zaretskii
2004-07-27 15:32 ` Andrew Cagney
2004-07-27 15:50 ` Christopher Faylor
2004-07-27 21:17 ` Michael Chastain
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