Dynamic linker issue with bind now?

[Petar Jovanovic]

> I'm guessing it should be possible to write a linker script to
> generate a minimal binary that exhibits the issue,

Yes, that is what I had in mind as well.
Speaking of which, I have just found out that I am not the first one to
report this issue and propose (this) patch.

The issue was reported [1] two years ago, and the issue page has a
small test case. For your convenience, I will copy it here:

$ cat > test.c <<EOF
#include <stdio.h>

static int __attribute__((section(".bar"))) bar = 0x12345678;

static const char foo[] = "foo";

int main() {
  printf("%s\n", foo);
  return 0;
}
EOF

$ cat > script <<EOF
SECTIONS
{
   .bar : { *(.bar) }
}
INSERT AFTER .rela.dyn;
EOF

$ gcc -o test test.c -fPIE -Wl,-T,script
$ LD_BIND_NOW=1 ./test
./test: error while loading shared libraries: unexpected reloc type
0x006008a0

I have just double-checked, and the test case is still valid (and fixed
with the patch). Let me know what you think.

Thank you.

Regards,
Petar

[1] Dynamic linker crash when DT_JMPREL and DT_REL{,A} are not contiguous,
https://sourceware.org/bugzilla/show_bug.cgi?id=14341