[lldb-dev] [Bug 17226] New: frame info lost after failed expression evaluation

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17226

            Bug ID: 17226
           Summary: frame info lost after failed expression evaluation
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: emaste at freebsd.org
    Classification: Unclassified

Encountered while investigating TestObjCStepping.test_with_dwarf_and_python_api 

% bin/lldb ../tools/lldb/test/lang/c/stepping/a.out
Current executable set to '../tools/lldb/test/lang/c/stepping/a.out' (x86_64).
(lldb) b 34
Breakpoint 1: where = a.out`b + 11 at main.c:34, address = 0x000000000040064b
(lldb) run
Process 70433 launched: '../tools/lldb/test/lang/c/stepping/a.out' (x86_64)
Process 70433 stopped
* thread #1: tid = 70433, 0x000000000080064b a.out`b(val=1) + 11 at main.c:34,
stop reason = breakpoint 1.1
    frame #0: 0x000000000080064b a.out`b(val=1) + 11 at main.c:34
   31  
   32   int b(int val)
   33   {
-> 34       int rc = c(val); // thread step-out while stopped at "c(2)"
   35       return rc;
   36   }
   37  
(lldb) expr (int) printf (print_string)
error: Couldn't materialize struct: size of variable print_string disagrees
with the ValueObject's size
Errored out in Execute, couldn't PrepareToExecuteJITExpression
(lldb) frame info
frame #0: 0x00000000008004d0 a.out`_start(ap=0x0000000000000000,
cleanup=0x0000000000001000) at crt1.c:65

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