59 lines
2.1 KiB
Text
59 lines
2.1 KiB
Text
# Copyright 2021-2022 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Check the size of the $pc register as the user changes the selected
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# architecture. As no executable is provided then the size of the $pc
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# register is defined by the default target description selected by
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# GDB.
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#
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# This test ensures that GDB is selecting an RV32 default if the user
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# has forced the current architecture to be riscv:rv32.
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#
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# In all other cases the default will be RV64.
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if {![istarget "riscv*-*-*"]} {
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verbose "Skipping ${gdb_test_file_name}."
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return
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}
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# Start GDB with no executable.
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gdb_start
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# The tests are defined by a list of architecture names to switch too
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# and the expected size of $pc. The first list entry is special and
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# has an empty architecture string, this checks GDB's default value on
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# startup.
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foreach data {{"" 8} {"riscv:rv32" 4} {"riscv:rv64" 8} {"riscv" 8} \
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{"auto" 8}} {
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set arch [lindex $data 0]
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set size [lindex $data 1]
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# Switch architecture.
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if { $arch != "" && $arch != "auto" } {
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gdb_test "set architecture $arch" \
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"The target architecture is set to \"$arch\"\\."
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} elseif { $arch == "auto" } {
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gdb_test "set architecture $arch" \
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"The target architecture is set to \"auto\" \\(currently \"riscv\"\\)\\."
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} else {
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set arch "default architecture"
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}
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# Check the size of $pc.
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with_test_prefix "$arch" {
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gdb_test "p sizeof (\$pc)" " = $size" \
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"size of \$pc register is $size"
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}
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}
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