[Bug varobj/27757] -var-list-children coredump

["mehmetgelisin at aol dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27757

Mehmet gelisin <mehmetgelisin at aol dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mehmetgelisin at aol dot com

--- Comment #29 from Mehmet gelisin <mehmetgelisin at aol dot com> ---
_typeof(oldval) prev;                                          \
                                                                            \
            __asm__ __volatile__(   http://www-look-4.com/                     
                   \
            "1:     llock   %0, [%1]        \n"                             \
            "       brne    %0, %2, 2f      \n"                             \
            "       scond   %3, [%1]        \n"     http://www.compilatori.com/
                        \
            "       bnz     1b              \n"                             \
            "2:    http://www.wearelondonmade.com/                          \n"
                            \
            : "=&r"(prev)                                                   \
            : "r"(mem), "ir"(oldval),    http://www.jopspeech.com/             
                     \
              "r"(newval) /* can't be "ir". scond can't take limm for "b" */\
            : "cc", "memory");                                              \
                                                                            \
            prev;    http://joerg.li/                                          
             \
      })
    ------>8-------
    "llock" (Load Locked) loads the 32-bit word pointed by the source
    operand.  If the load is completed without any interruption or
http://connstr.net/ 
    exception, the physical address is remembered, in Lock Physical Address
    (LPA), and the Lock Flag (LF) is set to 1.  LF is a non-architecturally
http://embermanchester.uk/ 
    visible flag and is cleared whenever an interrupt or exception takes
    place.  LF is also cleared (atomically) whenever another process writes
    to the LPA.
    http://www.slipstone.co.uk/ 
    "scond" (Store Conditional) will write to the destination address if
    and only if the LF is set to 1.  When finished, with or without a write,
    it atomically copies the LF value to ZF (Zero Flag).
http://www.logoarts.co.uk/ 

    These two instructions together provide the mechanism for entering a
    critical section.  The code snippet above comes from uClibc:
    -----------------------

    v3 (after Tom's remarks[2]): http://www.acpirateradio.co.uk/
     handle_atomic_sequence()
      - no need to initialize the std::vector with "{}"
      - fix typo in comments: "conditial" -> "conditional"
      - add braces to the body of "if" condition because of the comment line
     arc_linux_software_single_step() https://waytowhatsnext.com/ 
      - make the performance slightly more efficient by moving a few
        variables after the likely "return" point.
    https://komiya-dental.com/
    v2 (after Simon's remarks[3]): https://www.webb-dev.co.uk/ 
    - handle_atomic_sequence() gets a copy of an instruction instead of
      a reference.
    - handle_atomic_sequence() asserts if the given instruction is an llock.
http://www.iu-bloomington.com/ 
I set a breakpoint at line 13 and run, then this command

0-interpreter-exec --thread 1 --frame 0 mi2 "-var-create var1_b * \"b\""

causes a crash for m https://komiya-dental.com/

-- 
You are receiving this mail because:
You are on the CC list for the bug.