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[PATCH 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: Wed, 18 Jan 2017 15:56:56 -0800
- Subject: [PATCH 2/2] gdbserver: xtensa: support THREADPTR register
- Authentication-results: sourceware.org; auth=none
- References: <1484783816-13856-1-git-send-email-jcmvbkbc@gmail.com>
Provide aceess to the THREADPTR register to remote gdb.
2017-01-18 Max Filippov <jcmvbkbc@gmail.com>
gdb/gdbserver/
* 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.
---
gdb/gdbserver/linux-xtensa-low.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/gdb/gdbserver/linux-xtensa-low.c b/gdb/gdbserver/linux-xtensa-low.c
index 73fbfe2..eca0289 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
};
@@ -86,6 +87,10 @@ 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
@@ -133,6 +138,10 @@ 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