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authorJohn Baldwin <jhb@FreeBSD.org>2016-01-15 12:21:07 -0800
committerJohn Baldwin <jhb@FreeBSD.org>2016-01-19 08:18:49 -0800
commit94309df7aa9ab48bec7fb58fdc1deb26e24fc4c1 (patch)
tree5b43d9a4b9facc4ff224c40cf9a0d8493a8947c7 /gdb/inf-ptrace.h
parent791174281c341539fab650bd934cc0060b7c9720 (diff)
Use LWP IDs with ptrace register requests on FreeBSD.
This allows gdb to fetch per-thread registers for multi-threaded FreeBSD processes. Export get_ptrace_pid() from inf-ptrace.c and use it to determine the PID to pass to ptrace in pan-BSD native targets. NetBSD and OpenBSD also accept LWP IDs for ptrace requests to fetch per-thread state. gdb/ChangeLog: * amd64bsd-nat.c (amd64bsd_fetch_inferior_registers): Use get_ptrace_pid. (amd64bsd_store_inferior_registers): Use get_ptrace_pid. (amd64bsd_dr_get): Use get_ptrace_pid. (amd64bsd_dr_set): Use get_ptrace_pid. * i386bsd-nat.c (i386bsd_fetch_inferior_registers): Use get_ptrace_pid. (i386bsd_store_inferior_registers): Use get_ptrace_pid. (i386bsd_dr_get): Use get_ptrace_pid. (i386bsd_dr_set): Use get_ptrace_pid. * inf-ptrace.c (get_ptrace_pid): Export. * inf-ptrace.h (get_ptrace_pid): Declare. * ppcfbsd-nat.c (ppcfbsd_fetch_inferior_registers): Use lwp id. (ppcfbsd_store_inferior_registers): Use lwp id.
Diffstat (limited to 'gdb/inf-ptrace.h')
-rw-r--r--gdb/inf-ptrace.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/gdb/inf-ptrace.h b/gdb/inf-ptrace.h
index ec405904a4..0a267202ec 100644
--- a/gdb/inf-ptrace.h
+++ b/gdb/inf-ptrace.h
@@ -33,4 +33,9 @@ extern struct target_ops *
inf_ptrace_trad_target (CORE_ADDR (*register_u_offset)
(struct gdbarch *, int, int));
+/* Return which PID to pass to ptrace in order to observe/control the
+ tracee identified by PTID. */
+
+extern pid_t get_ptrace_pid (ptid_t);
+
#endif