Hi Shougang
curTick is a function as you can see from:
(gdb) p curTick
$1 = {Tick (void)} 0x5555562aea48 <curTick()>
Could you try doing:
(gdb) p curTick()
It should display the current Tick time
Giacomo
From: Shougang Yuan via gem5-users <gem5-users@gem5.org>
Sent: 02 October 2020 04:00
To: gem5 users mailing list <gem5-users@gem5.org>
Cc: Shougang Yuan <syu...@ncsu.edu>
Subject: [gem5-users] GDB debug help
Hi, All,
I am running simulation in se mode and trying to use gdb debug a segmentation
fault. Through trace debug, I found that the simulation suffers a segmentation
fault in tick 534558604750.
To figure out the reason for this bug, I launched the gdb debugger. But I
suffered some weird results. Usually, when using gdb debug, we use
"--debug-break" or "schedBrak()" to set breakpoint. And we can use "p curTick"
to dump out the current tick.
My simulation stopped at tick 534558604750, and I sched the break in tick
1000000. It is much more early than the time when this memory bug happens. But
when I call "p curTick", the gdb dumped out something like the following:
Program received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff5c28237 in kill () at ../sysdeps/unix/syscall-template.S:78
78 ../sysdeps/unix/syscall-template.S: No such file or directory.
(gdb) p curTick
$1 = {Tick (void)} 0x5555562aea48 <curTick()>
(gdb) p _curTick
No symbol "_curTick" in current context.
(gdb)
And when I set the breakpoint time to tick 2000, this is the very beginning of
the simulation, I still can not dump out the current tick value.
So what's wrong with it? Can some please help me out? Thanks for your help.
Best regards.
Yuan
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