tree e44bcac06e54707d90a4c62989b63b537dd7f554
parent b05fc5463be8df587b4acc8f522f51e21bc22be8
author Dmitry V. Levin <ldv@altlinux.org> 1324601449 +0000
committer Dmitry V. Levin <ldv@altlinux.org> 1324601449 +0000

Enhance personality switching

On syscall entry, save current personality in the tcb structure
along with scno.
On syscall exit, restore current personality from the tcb structure.
* defs.h (struct tcb) [SUPPORTED_PERSONALITIES > 1]: Add currpers
field.
* strace.c (alloc_tcb) [SUPPORTED_PERSONALITIES > 1]: Initialize
tcp->currpers.
* syscall.c (update_personality) [SUPPORTED_PERSONALITIES > 1]: New
function.
(get_scno, trace_syscall_exiting): Use it.

Reported-by: Michael A Fetterman <mafetter@nvidia.com>