[lug] A head scratcher for your weekend

[Matt Bidwell]

It appears to stat it many times. Here's the last one:
stat("/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=16384, 
...}) = 0
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/libQt5Core.so.5", 
O_RDONLY|O_CLOEXEC) = 3
read(3, 
"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 at g\t\0\0\0\0\0"..., 832) 
= 832
lseek(3, 5167904, SEEK_SET)             = 5167904
read(3, 
"\4\0\0\0\20\0\0\0\1\0\0\0GNU\0\0\0\0\0\3\0\0\0\21\0\0\0\0\0\0\0", 32) = 32
close(3)                                = 0

Here's wht ldconfig -p get's me.
# ldconfig -p | grep libQt5Core.so.5
	libQt5Core.so.5 (libc6,x86-64, OS ABI: Linux 3.17.0) => 
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5

I really do appreciate the help. There were some Qt package updates this 
morning including libqt5core5a. Updating them didn't fix anything but I 
may dig through the change logs later. -Matt

On 05/20/2018 08:30 PM, Davide Del Vento wrote:
> In the strace output, is there any attempt to load any of the
> /usr/lib/x86_64-linux-gnu/libQt5Core.so.5* ?
> If so, you should get the clue we're after.
> If not, that's the weirdness, especially if it shows (succeeding)
> attempts to load /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 as the
> ldd suggests.
> 
> On Sun, May 20, 2018 at 6:49 PM, Zan Lynx <zlynx at acm.org> wrote:
>> On 5/20/2018 4:46 PM, Matt Bidwell wrote:
>>>
>>> openat(AT_FDCWD, "/usr/lib/libQt5Core.so.5", O_RDONLY|O_CLOEXEC) = 3
>>
>>
>> This one is not in the 64-bit library location so it is rejected for loading
>> into a 64-bit program. At least if it is following the usual Linux
>> distribution file locations.
>>
>> --
>>                  Knowledge is Power -- Power Corrupts
>>                          Study Hard -- Be Evil
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