This is the mail archive of the
gdb-patches@sourceware.org
mailing list for the GDB project.
[PATCH v2 2/2] gdbserver: xtensa: support THREADPTR register
- From: Max Filippov <jcmvbkbc at gmail dot com>
- To: gdb-patches at sourceware dot org
- Cc: Maxim Grigoriev <maxim2405 at gmail dot com>, Woody LaRue <larue at cadence dot com>, Marc Gauthier <marc at cadence dot com>, Max Filippov <jcmvbkbc at gmail dot com>
- Date: Tue, 21 Feb 2017 17:55:03 -0800
- Subject: [PATCH v2 2/2] gdbserver: xtensa: support THREADPTR register
- Authentication-results: sourceware.org; auth=none
- References: <1487728503-2517-1-git-send-email-jcmvbkbc@gmail.com>
Provide aceess to the THREADPTR register to remote gdb.
gdb/gdbserver/
2017-01-18 Max Filippov <jcmvbkbc@gmail.com>
* linux-xtensa-low.c (regnum::R_THREADPTR): New enum member.
(xtensa_fill_gregset): Call collect_register_by_name for
threadptr register.
(xtensa_store_gregset): Call supply_register_by_name for
threadptr register.
---
Changes v1->v2:
- add missing spaces to type casts;
- move directory name up in the commit message..
gdb/gdbserver/linux-xtensa-low.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/gdb/gdbserver/linux-xtensa-low.c b/gdb/gdbserver/linux-xtensa-low.c
index 89efa05..d285233 100644
--- a/gdb/gdbserver/linux-xtensa-low.c
+++ b/gdb/gdbserver/linux-xtensa-low.c
@@ -36,6 +36,7 @@ enum regnum {
R_LBEG, R_LEND, R_LCOUNT,
R_SAR,
R_WS, R_WB,
+ R_THREADPTR,
R_A0 = 64
};
@@ -84,6 +85,11 @@ xtensa_fill_gregset (struct regcache *regcache, void *buf)
collect_register (regcache, i, ptr);
ptr += register_size (tdesc, i);
}
+
+#if XCHAL_HAVE_THREADPTR
+ collect_register_by_name (regcache, "threadptr",
+ (char *) &rset[R_THREADPTR]);
+#endif
}
static void
@@ -131,6 +137,11 @@ xtensa_store_gregset (struct regcache *regcache, const void *buf)
supply_register_by_name (regcache, "ps", (char*)&rset[R_PS]);
supply_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]);
supply_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]);
+
+#if XCHAL_HAVE_THREADPTR
+ supply_register_by_name (regcache, "threadptr",
+ (char *) &rset[R_THREADPTR]);
+#endif
}
/* Xtensa GNU/Linux PTRACE interface includes extended register set. */
--
2.1.4