Re: 64 bit platform improvements

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"Anatol Belski" in php.windows (Thu, 26 Dec 2013 23:10:41 +0100):
>Yeah, there is a page
>https://bugs.php.net/bugs-generating-backtrace-win32.php , the debug tool
>is in current version 2.0 now, but the screenshots are compatible.

I am now getting this result with a x64 debug build:

WARNING - DebugDiag was not able to locate debug symbols for
\php5_debug.dll, so the information below may be incomplete.

In
php-cgi__PID__2664__Date__12_28_2013__Time_02_21_08PM__334__Second_Chance_Exception_C0000005.dmp
the assembly instruction at php5_debug!gc_init+2687d in
D:\phpdev\php57nts.x64d\php5_debug.dll from The PHP Group has caused an
access violation exception (0xC0000005) when trying to read from memory
location 0x00000000 on thread 0

Strange thing: there was a php5_debug.pdb besides the php5_debug.dll. Am
I missing something? The info does not go further than things like:

php5_debug!gc_init+2687d 
php5_debug!gc_init+2684a 
php5_debug!gc_init+23c67 
php5_debug!gc_init+21488 
php5_debug!gc_init+1c658e 
php5_debug!gc_init+14868d 
php5_debug!gc_init+14a008 

There are a lot more files with info about php5_debug.dll than only the
.pdb:

28/12/13  14:56        16.347.648 php5_debug.dll
28/12/13  14:48            32.697 php5_debug.dll.def
28/12/13  14:56               618 php5_debug.dll.manifest
28/12/13  14:51             1.132 php5_debug.dll.res
28/12/13  14:56           488.426 php5_debug.exp
28/12/13  14:56         7.497.392 php5_debug.ilk
28/12/13  14:56           806.446 php5_debug.lib
28/12/13  14:56        15.346.688 php5_debug.pdb

Which one would be interesting for the debugdiag tool?

>The issue with gdb is that it can debug only the corresponding builds (for
>instance binaries compiled with gcc under mingw).

Hmmm. GDB knew that it was zend_mm_set_custom_handlers in the DLL.

Jan

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