OpenE2K
/
binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[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.
This commit is contained in:
Yao Qi 2017-04-28 09:33:16 +01:00
parent 343b374c61
commit 7974a6050b
2 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
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.
2017-04-27 Keith Seitz <keiths@redhat.com>
* gdbtypes.c (LVALUE_REFERENCE_TO_RVALUE_BINDING_BADNESS)

5
gdb/mips-linux-nat.c
View File

@ -624,14 +624,13 @@ write_watchpoint_regs (void)
static void
mips_linux_new_thread (struct lwp_info *lp)
{
int tid;
long tid = ptid_get_lwp (lp->ptid);
if (!mips_linux_read_watch_registers (ptid_get_lwp (inferior_ptid),
if (!mips_linux_read_watch_registers (tid,
&watch_readback,
&watch_readback_valid, 0))
return;
tid = ptid_get_lwp (lp->ptid);
if (ptrace (PTRACE_SET_WATCH_REGS, tid, &watch_mirror, NULL) == -1)
perror_with_name (_("Couldn't write debug register"));
}