#2 Error on disassembly of /bin/ls

[dmck]

installed Lida -03.00.00 from sourceforge
Running on Linux Fedora Core 1

Ran lida on /bin/ls and failed to get any disassembly.

Jumping to entrypoint: 08049A60
lida: ERROR: 08049A60 not found in address range!
Disassembly DONE

details in attached file.

get the same with hello world program

int main(){
printf("Hello World!\n");
return 0;
}

gcc foo.c -o foo

[bugmenot]

Logged In: YES
user_id=1072308

(crossposted from help forum)

It's an bug in lida_back.c

But the bug only causes problems on certain linux versions.

You can't MAP_SHARED a file opened in readonly mode. Using
MAP_PRIVATE works fine.

lida_back.c:724 image = mmap(0, tmpStat.st_size,
PROT_READ, MAP_SHARED, fTarget, 0);
should be
lida_back.c:724 image = mmap(NULL, tmpStat.st_size,
PROT_READ, MAP_PRIVATE, fTarget, 0);

Many valid pointers look like negative integers. mmap errors
are exactly equal to -1.

lida_back.c:724 if ((int) image < 1) return (-1);
should be
lida_back.c:724 if ((int) image == -1) return (-1);

[Mario Schallner]

Logged In: YES
user_id=1051339

thanks bugmenot!!

i have developed lida on mdk 10.0 "a long time ago" and now
use debian, where I aslo realized this. i am still porting
lida to plain C, now switch from gtk to Qt again. I planned
to not maintain this perl version it is for me more a proof
of concept.
I will upload a maintenance release in the next 1-2 weeks
where i clean out all that has ben found by you guys and me
the latest time. but then this perl version will get frozen
definately ;)

thanks all who use it and especially give feedback!