[MIPS] Use lwpid from lwp_info instead of inferior_ptid
authorYao Qi <yao.qi@linaro.org>
Fri, 28 Apr 2017 08:33:16 +0000 (09:33 +0100)
committerYao Qi <yao.qi@linaro.org>
Fri, 28 Apr 2017 08:33:16 +0000 (09:33 +0100)
commit7974a6050b6e2c44722a533e2d5d9131e7db00ff
treeef7d930a36154a2be518b2ca687c464263485faa
parent343b374c61f793f745b820c3cf61f69186566b18
[MIPS] Use lwpid from lwp_info instead of inferior_ptid

RAJESH reported that GDB gets "Couldn't write debug register: No such
process." on mips64 when GDB attaches to a multi threaded application.

Looks GDB nows PTRACE_GET_WATCH_REGS for inferior_ptid but
PTRACE_SET_WATCH_REGS for lwp->ptid, they may be different.

gdb:

2017-04-28  Yao Qi  <yao.qi@linaro.org>

* mips-linux-nat.c (mips_linux_new_thread): Get lwpid from
lwp_info instead of getting from inferior_ptid.
gdb/ChangeLog
gdb/mips-linux-nat.c