It seems that when asked to extract symbols, objcopy cannot process ELF
executables that were built with the "--emit-reloc" linker option. objcopy gives
an "assertion failed" and exits. The error and the procedure used to generate it
is as follows:
1. Create a very simple C program, test.c:
#include <stdio.h>
int main(int argc, char **argv) {
return 0;
}
2. Build it with relocation information kept in the final executable:
$ gcc -o test -Wl,--emit-relocs test.c
3. Try to extract the symbols in a separate file:
$ objcopy --extract-symbol test test_sym
BFD: BFD (GNU Binutils for Ubuntu) 2.18.0.20080103 assertion fail
../../bfd/elf.c:5517
--
Summary: objcopy gives "assertion failed" when extracting symbols
from ELF executables linked with "--emit-relocs"
Product: binutils
Version: 2.18
Status: NEW
Severity: normal
Priority: P2
Component: binutils
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: stefan dot bucur at gmail dot com
CC: bug-binutils at gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://sourceware.org/bugzilla/show_bug.cgi?id=6774
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.
_______________________________________________
bug-binutils mailing list
bug-binutils@gnu.org
http://lists.gnu.org/mailman/listinfo/bug-binutils
