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[binutils-gdb] gdbserver: xtensa: support THREADPTR register
- From: Max Filippov <jcmvbkbc at sourceware dot org>
- To: gdb-cvs at sourceware dot org
- Date: 27 Mar 2017 20:07:43 -0000
- Subject: [binutils-gdb] gdbserver: xtensa: support THREADPTR register
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a12e714b775ce025444af15dcfbd5a420363ad53
commit a12e714b775ce025444af15dcfbd5a420363ad53
Author: Max Filippov <jcmvbkbc@gmail.com>
Date: Fri Nov 18 16:08:48 2016 -0800
gdbserver: xtensa: support THREADPTR register
Provide aceess to the THREADPTR register to remote gdb.
gdb/gdbserver/
2017-03-27 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.
Diff:
---
gdb/gdbserver/ChangeLog | 8 ++++++++
gdb/gdbserver/linux-xtensa-low.c | 11 +++++++++++
2 files changed, 19 insertions(+)
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 7b4c443..693b5e0 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,5 +1,13 @@
2017-03-27 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.
+
+2017-03-27 Max Filippov <jcmvbkbc@gmail.com>
+
* linux-xtensa-low.c (xtensa_fill_gregset): Call collect_register
for all registers in a0_regnum..a0_regnum + C0_NREGS range.
(xtensa_store_gregset): Call supply_register for all registers in
diff --git a/gdb/gdbserver/linux-xtensa-low.c b/gdb/gdbserver/linux-xtensa-low.c
index 80b5d33..214abdc 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 +87,11 @@ xtensa_fill_gregset (struct regcache *regcache, void *buf)
collect_register_by_name (regcache, "ps", (char*)&rset[R_PS]);
collect_register_by_name (regcache, "windowbase", (char*)&rset[R_WB]);
collect_register_by_name (regcache, "windowstart", (char*)&rset[R_WS]);
+
+#if XCHAL_HAVE_THREADPTR
+ collect_register_by_name (regcache, "threadptr",
+ (char *) &rset[R_THREADPTR]);
+#endif
}
static void
@@ -135,6 +141,11 @@ 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. */