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| author | Yao Qi <yao.qi@linaro.org> | 2017-04-28 09:33:16 +0100 |
|---|---|---|
| committer | Yao Qi <yao.qi@linaro.org> | 2017-04-28 09:36:37 +0100 |
| commit | c6767e625c0fb73c9a12d991140670a00ad8284c (patch) | |
| tree | 0bc16af9c8b120ae632c70309a637fa3a0171f9a | |
| parent | 6f43fe1508c359c4daa25a1a1c97496292462b13 (diff) | |
| download | gdb-c6767e625c0fb73c9a12d991140670a00ad8284c.zip gdb-c6767e625c0fb73c9a12d991140670a00ad8284c.tar.gz gdb-c6767e625c0fb73c9a12d991140670a00ad8284c.tar.bz2 | |
[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.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/mips-linux-nat.c | 5 |
2 files changed, 7 insertions, 3 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index fb64b64..c8b0084 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -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) diff --git a/gdb/mips-linux-nat.c b/gdb/mips-linux-nat.c index 9596b49..c5c18fd 100644 --- a/gdb/mips-linux-nat.c +++ b/gdb/mips-linux-nat.c @@ -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")); } |