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* [Bug gdb/10952] New: Single Stepping into functions is very slow when not setting LD_BIND_NOW env variable
@ 2009-11-13 14:32 bschindler at inf dot ethz dot ch
2009-11-13 15:05 ` [Bug gdb/10952] " bschindler at inf dot ethz dot ch
0 siblings, 1 reply; 2+ messages in thread
From: bschindler at inf dot ethz dot ch @ 2009-11-13 14:32 UTC (permalink / raw)
To: gdb-prs
(I'm not sure which values to fill out above (host, target and build triplet, so
I'll describe below)
I'm currently debugging paraview and very often, single stepping will cause gdb
to stall for multiple seconds when stepping into a function call. Googling a bit
revealed that setting LD_BIND_NOW can solve these problems. And here it did
solve them
I'm on a modern 8-core x86-64 system with more than enough ram. Kernel and
user-space software is all in x86-64.
Distribution is gentoo (no excessive flags)
If there is anything I can do just let me know
--
Summary: Single Stepping into functions is very slow when not
setting LD_BIND_NOW env variable
Product: gdb
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gdb
AssignedTo: unassigned at sourceware dot org
ReportedBy: bschindler at inf dot ethz dot ch
CC: gdb-prs at sourceware dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=10952
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^ permalink raw reply [flat|nested] 2+ messages in thread* [Bug gdb/10952] Single Stepping into functions is very slow when not setting LD_BIND_NOW env variable
2009-11-13 14:32 [Bug gdb/10952] New: Single Stepping into functions is very slow when not setting LD_BIND_NOW env variable bschindler at inf dot ethz dot ch
@ 2009-11-13 15:05 ` bschindler at inf dot ethz dot ch
0 siblings, 0 replies; 2+ messages in thread
From: bschindler at inf dot ethz dot ch @ 2009-11-13 15:05 UTC (permalink / raw)
To: gdb-prs
------- Additional Comments From bschindler at inf dot ethz dot ch 2009-11-13 15:05 -------
Thanks to some help from pholklore___ on #gdb on freenode, I was able to produce
some output.
I enabled:
set debug infrun 1
And the output is like this (the last 100 lines, there were way more than this,
but they were all the same)
infrun: stop_pc = 0x7ffff7deecb6
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecb9
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecbd
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecc4
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecc7
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecc9
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecce
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecd2
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecd3
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7deecd4
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45a2
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45a5
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45aa
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45af
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45b4
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45b9
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45be
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45c3
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45c7
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7ffff7df45cb
infrun: stepped into dynsym resolve code
infrun: resume (step=1, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7fffe7b8afd4
infrun: stepped into subroutine
infrun: inserting step-resume breakpoint at 0x7fffe7b8afe0
infrun: resume (step=0, signal=0), trap_expected=0
infrun: prepare_to_wait
infrun: target_wait (-1, status) =
infrun: 1703 [Thread 0x7ffff7e977c0 (LWP 1703)],
infrun: status->kind = stopped, signal = SIGTRAP
infrun: infwait_normal_state
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x7fffe7b8afe0
infrun: BPSTAT_WHAT_STEP_RESUME
infrun: stepped into subroutine
infrun: stop_stepping
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10952
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^ permalink raw reply [flat|nested] 2+ messages in threadend of thread, other threads:[~2009-11-13 15:05 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-11-13 14:32 [Bug gdb/10952] New: Single Stepping into functions is very slow when not setting LD_BIND_NOW env variable bschindler at inf dot ethz dot ch 2009-11-13 15:05 ` [Bug gdb/10952] " bschindler at inf dot ethz dot ch
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