Control: retitle -1 gdb: x86-64: "cannot find thread-local variables
on this target"
Further experimentation indicates that this is a problem with
thread-local variables in general and there's something special about
'errno' that makes it appear to work; the Python interface is not the
problem. For instance:
$ cat test.c
#include <stdio.h>
#include <errno.h>
static _Thread_local int foo;
int main(void)
{
printf("%d %d\n", errno, foo);
}
$ gcc -g test.c
$ gdb ./a.out
...
(gdb) b main
Breakpoint 1 at 0x749: file test.c, line 6.
(gdb) r
Starting program: /home/zack/a.out
Breakpoint 1, main () at test.c:6
6 printf("%d %d\n", errno, foo);
(gdb) p errno
$1 = 0
(gdb) p foo
Cannot find thread-local storage for process 13090, executable file
/home/zack/a.out:
Cannot find thread-local variables on this target
