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[Bug c++/15689] New: can't compute CFA for this frame
- From: "sebastian dot huber at embedded-brains dot de" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Thu, 27 Jun 2013 11:52:32 +0000
- Subject: [Bug c++/15689] New: can't compute CFA for this frame
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=15689
Bug ID: 15689
Summary: can't compute CFA for this frame
Product: gdb
Version: 7.6
Status: NEW
Severity: normal
Priority: P2
Component: c++
Assignee: unassigned at sourceware dot org
Reporter: sebastian.huber@embedded-brains.de
Created attachment 7097
--> http://sourceware.org/bugzilla/attachment.cgi?id=7097&action=edit
ELF file
I use powerpc-rtems4.11-gcc (GCC) 4.8.2 20130627 (prerelease) (a similar
problem occurs also on SPARC and ARM) with -O2 -g.
(gdb) b Task1::screen1()
Breakpoint 4 at 0x8f8: file
/home/sh/rtems-4.11/c/src/../../testsuites/libtests/rtems++/Task1.cc, line 93.
(gdb) r
Breakpoint 4, Task1::screen1 (this=this@entry=0x480c0 <task_1>) at
/home/sh/rtems-4.11/c/src/../../testsuites/libtests/rtems++/Task1.cc:93
93 {
(gdb) n
95 rtemsTask local_task_1 = *this;
(gdb) n
95 rtemsTask local_task_1 = *this;
(gdb) p local_task_1
can't compute CFA for this frame
(gdb)
In case I use -gdwarf-2, then I get "Could not find the frame base for".
You can run the example with the built in GDB PSIM simulator:
tar sim -f psim_tree.sh
psim_tree.sh:
#
# Device Tree for PSIM
#
# Automatically Generated -- DO NOT EDIT!!
#
/#address-cells 1
/openprom/init/register/pvr 0xfffe0000
/openprom/options/oea-memory-size 16777216
##### EEPROM @ 0x0c000000 for 512K
/eeprom@0x0c000000/reg 0x0c000000 0x80000
/eeprom@0x0c000000/nr-sectors 8
/eeprom@0x0c000000/sector-size 0x10000
/eeprom@0x0c000000/byte-write-delay 1000
/eeprom@0x0c000000/sector-start-delay 100
/eeprom@0x0c000000/erase-delay 1000
/eeprom@0x0c000000/manufacture-code 0x01
/eeprom@0x0c000000/device-code 0xa4
##### NVRAM/RTC NVRAM Portion is 0x0c080000 for 512K
##### NVRAM/RTC RTC Portion is 0x0c100000 for 12
/nvram@0x0c080000/reg 0x0c080000 524300
/nvram@0x0c080000/timezone -3600
##### OPENPIC @ 0x0c130000 - 0x0c170000 (512K)
/opic@0x0c130000/reg 0x0c130000 0 0x0c130000 0x40000
/opic@0x0c130000/interrupt-ranges 0 0 0 16
/opic@0x0c130000/device_type open-pic
## interupt out -> CPU's interrupt pin
/opic@0x0c130000 > intr0 int /cpus/cpu@0
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