https://sourceware.org/bugzilla/show_bug.cgi?id=21000
John David Anglin <danglin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
CC| |deller at gmx dot de
Resolution|FIXED |---
--- Comment #13 from John David Anglin <danglin at gcc dot gnu.org> ---
If I compile the trivial main program
int main() { return 0 }
with "gcc -o main -Wl,-z,relro main.c" and run main using gdb with
a break at _start
dave@mx3210:~/ffmpeg$ gdb main
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Reading symbols from main...(no debugging symbols found)...done.
(gdb) break _start
Breakpoint 1 at 0x10350
(gdb) r
Starting program: /home/dave/ffmpeg/main
Breakpoint 1, 0x00010350 in _start ()
I get a bunch of inequivalent alias messages on the console:
mx3210 login: INEQUIVALENT ALIASES 0x10000 and 0x11000 in file main
INEQUIVALENT ALIASES 0x10000 and 0x11000 in file main
INEQUIVALENT ALIASES 0x10000 and 0x11000 in file main
INEQUIVALENT ALIASES 0x10000 and 0x11000 in file main
INEQUIVALENT ALIASES 0x10000 and 0x11000 in file main
INEQUIVALENT ALIASES 0x10000 and 0x11000 in file main
...
This doesn't happen without "-Wl,-z,relro".
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