Euphoria Ticket #972: When debugging built interpreter cannot display variable values

When using the - - debug flag to build source on Linux/ia32, and then compiling on Linux/ia64 also with the - -debug flag, the variables are invisible to the debugger.

Starting program: /usr/local/src/euphoria/ia64-debug/eui -i /usr/local/src/euphoria/include -D DEBUG  /usr/local/src/euphoria/source/euc.ex -debug -build-dir "/usr/local/src/euphoria/ia64-debug/bind-build"                 -c "/usr/local/src/euphoria/ia64-debug/eu.cfg"                 -o "/usr/local/src/euphoria/ia64-debug/eubind"                 -lib "/usr/local/src/euphoria/ia64-debug/eu.a"                 -makefile -eudir /usr/local/src/euphoria -cflags "-DEX86_64  -m64 -pthread -c -fsigned-char -DEUNIX  -ffast-math   -g3 -O0 -Wall -I/usr/local/src/euphoria/source -I/usr/local/src/euphoria  -DARCH=ix86_64 -DEREL_TYPE="development""                   /usr/local/src/euphoria/source/eubind.ex 
warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7ffff7ffa000 
[Thread debugging using libthread_db enabled] 
Using host libthread_db library "/lib/x86_64-linux-gnu/". 
Program received signal SIGSEGV, Segmentation fault. 
0x000000000071b44b in _62my_sscanf () 
(gdb) l 
1171        else{ 
1172            DeRef(_26803); 
1173            _26803 = NOVALUE; 
1174        } 
1175        // SubProg Cleanup pc: 156 op: STARTLINE (58) 
1177        /** error.e:207                             screen_output(STDERR, GetMsgText(PRESS_ENTER,0))*/ 
1178        // SubProg Cleanup pc: 158 op: GLOBAL_INIT_CHECK (109) 
1179        // SubProg Cleanup pc: 160 op: GLOBAL_INIT_CHECK (109) 
1180        // SubProg Cleanup pc: 162 op: PROC (27) 
(gdb) p _26803 
No symbol "_26803" in current context. 


Type: Bug Report Severity: Blocking Category: Interpreter
Assigned To: unknown Status: Invalid Reported Release:
Fixed in SVN #: View VCS: none Milestone: 4.1.0

1. Comment by SDPringle Jan 27, 2019

This is a problem with the C platform and not with the Euphoria programs itself. It's a pretty bad issue but there is no real way to remedy this.


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