We have upgraded our C compiler to 4.5.3 and are now experiencing problems when trying to debug the server binary on solaris (works fine on linux rhel5 and AIX 6.1)
Below is the log of a debugging attempt. Any help would be appreciated.
-bash-3.00$ gdb myServer
Python Exception exceptions.ImportError No module named gdb:
warning:
Could not load the Python gdb module from `/usr/local/share/gdb/python'.
Limited Python support is available from the _gdb module.
Suggest passing --data-directory=/path/to/gdb/data-directory.
GNU gdb (GDB) 7.7
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "sparc-sun-solaris2.10".
Type "show configuration" for configuration details.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
BFD: BFD (GNU Binutils) 2.24.51.20140206 assertion fail elf.c:1727
Reading symbols from myServer...BFD: /data3/develop/myServer symbol number 7 references nonexistent SHT_SYMTAB_SHNDX section
Can't read symbols from /data3/develop/myServer: Invalid operation
(gdb)
BFD: BFD (GNU Binutils) 2.24.51.20140206 assertion fail elf.c:1727
This is a bug in gnu binutils. You should report it here.
Related
### this is gdb's output.
***
gdb python3.11
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from python3.11...done.
***
I can't enter any commands after this.
### this is gcc and gdb version.
***
gcc --version
gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
gdb --version
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
***
### this is linux version
***
uname -a
Linux xxxxxxxx.net 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 GNU/Linux
cat /etc/debian_version
9.13
***
### python3.11 configure.ac
only add "-gdwarf-4" to OPT , because my gdb does not support dwarf5
### build command
***
./configure --prefix="MY_PATH" -enable-optimizations LLVM_PROFDATA="/usr/lib/llvm-14/bin/llvm-profdata" --with-lto --with-openssl="MY_PATH" --with-openssl-rpath="MY_PATH"
make && make install
***
I Compile Python3.11 without any changes, but GDB does not support DWARF5, so I added "-gdwarf-4" to build. Then I use gdb, gdb gets stuck。 I want use gdb to debug my program 。 I have tried build python2.7 with '-gdwarf-4' ,and the result is same。
Before command 'make install' , gdb is not stuck when I use command 'gdb python3.11'
my.cpp:
#include<stdio.h>
int main()
{
printf("hello main");
return 0;
}
build with gcc and then
i use gdb to run the program, error occurred.
gdb: unknown target exception 0x406d1388 at 0x75fca6f2
Program received signal ?, Unknown signal.
0x75fca6f2 in RaiseException ()
from /cygdrive/c/WINDOWS/System32/KERNELBASE.dll
gcc info:
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-cygwin/5.4.0/lto-wrapper.exe
Target: i686-pc-cygwin
Thread model: posix
gcc version 5.4.0 (GCC)
gdb info:
GNU gdb (GDB) (Cygwin 7.10.1-1) 7.10.1
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
It is a known bug for this version of GDB. This link may help you.
When I changed my cygwin to 64 version, the problem is suprisely solved.
I think this may be another a bug which differ from the "well-known" GDB bug.
I'm tried to debug my binary file (called click) with gdb.
When I run
gdb ./click
I have the following error
GNU gdb (Ubuntu 7.10-1ubuntu2) 7.10
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
"/home/student/Desktop/./click": not in executable format: File format not recognized
The outupt of:
uname -a
is
Linux student 4.2.0-36-lowlatency #42-Ubuntu SMP PREEMPT Thu May 12 23:39:42 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
And if I run
file click
I get this output:
click: ERROR: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2 error reading (Invalid argument)
Any ideas?
click: ERROR: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2 error reading (Invalid argument)
Your file is simply corrupt.
Possibly it is truncated (did you run out of disk space when linking it?), or you transferred it over FTP from another machine in ASCII mode (use binary mode instead).
I've installed gdb formulae from Homebrew on OSX 10.10.5 to send a backtrace to developers of weechat (because weechat installed with Homebrew crashes every time I do /exit).
And got this problem when trying to read the core file:
gdb /usr/local/bin/weechat /cores/core.70087
GNU gdb (GDB) 7.10
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin14.5.0".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/local/bin/weechat...(no debugging symbols found)...done.
"/cores/core.70087": no core file handler recognizes format
(gdb)
I've tried to do this with with lldb instead of gdb:
$ lldb /usr/local/bin/weechat /cores/core.70087
(lldb) target create "/usr/local/bin/weechat"
Current executable set to '/usr/local/bin/weechat' (x86_64).
(lldb) settings set -- target.run-args "/cores/core.70087"
(lldb) bt full
error: bt [<digit>|all]
(lldb) bt all
error: invalid process
(lldb) bt
error: invalid process
(lldb) thread backtrace
error: invalid process
(lldb)
Have no idea what am I doing, just trying to do whatever I can to address these crashes.
You should be able to launch lldb as
$ lldb --core "/cores/core.70087"
I want to debug my application written in C++ in Eclipse via network. I followed this tutorial http://janaxelson.com/eclipse5.htm but when debugging starts it gives me strange segmentation fault. Full log:
GNU gdb (Ubuntu 7.9-1ubuntu1) 7.9
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
0xb7fdf0d0 in print_statistics (rtld_total_timep=<optimized out>) at rtld.c:2594
2594 rtld.c: No such file or directory.
Program received signal SIGSEGV, Segmentation fault.
0xb7fe129f in dl_main (phdr=0x8048034, phnum=9, user_entry=0xbffff6ec, auxv=0xbffff7e0) at rtld.c:2182
2182 in rtld.c
I can't figure out what's wrong.
My setup is
Ubuntu 15.04, gcc version 4.9.2, gdb 7.9, Eclipse Mars
Target machine:
Ubuntu 14.04.2 LTS, gdb 7.7.1, gdbserver 7.7.1