diff options
| author | Jonathan Behrens <jonathan@fintelia.io> | 2019-10-14 11:45:28 -0400 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2019-10-28 07:47:29 -0700 |
| commit | ab9056ff9bdb3f95db6e7a666d10522d289f14ec (patch) | |
| tree | a8ef14c78bdd972ed3dcc4ba51e29233cfc48afb /gdb-xml | |
| parent | a555ad1399c9eda9da0c5f8e40acd94d87957054 (diff) | |
target/riscv: Expose "priv" register for GDB for reads
This patch enables a debugger to read the current privilege level via a virtual
"priv" register. When compiled with CONFIG_USER_ONLY the register is still
visible but always reports the value zero.
Signed-off-by: Jonathan Behrens <jonathan@fintelia.io>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'gdb-xml')
| -rw-r--r-- | gdb-xml/riscv-32bit-virtual.xml | 11 | ||||
| -rw-r--r-- | gdb-xml/riscv-64bit-virtual.xml | 11 |
2 files changed, 22 insertions, 0 deletions
diff --git a/gdb-xml/riscv-32bit-virtual.xml b/gdb-xml/riscv-32bit-virtual.xml new file mode 100644 index 0000000000..905f1c555d --- /dev/null +++ b/gdb-xml/riscv-32bit-virtual.xml @@ -0,0 +1,11 @@ +<?xml version="1.0"?> +<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc. + + Copying and distribution of this file, with or without modification, + are permitted in any medium without royalty provided the copyright + notice and this notice are preserved. --> + +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> +<feature name="org.gnu.gdb.riscv.virtual"> + <reg name="priv" bitsize="32"/> +</feature> diff --git a/gdb-xml/riscv-64bit-virtual.xml b/gdb-xml/riscv-64bit-virtual.xml new file mode 100644 index 0000000000..62d86c237b --- /dev/null +++ b/gdb-xml/riscv-64bit-virtual.xml @@ -0,0 +1,11 @@ +<?xml version="1.0"?> +<!-- Copyright (C) 2018-2019 Free Software Foundation, Inc. + + Copying and distribution of this file, with or without modification, + are permitted in any medium without royalty provided the copyright + notice and this notice are preserved. --> + +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> +<feature name="org.gnu.gdb.riscv.virtual"> + <reg name="priv" bitsize="64"/> +</feature> |