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| author | Tim Newsome <tim@sifive.com> | 2022-12-01 10:30:33 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-01 10:30:33 -0800 |
| commit | 6a4225fae83a1ad9bf9687c13f1046baa401269e (patch) | |
| tree | d7dee754d1067ba3fbe856ea3c7434659a7e18fb /debug/testlib.py | |
| parent | 068241464ee28131a811f70bd2a78e299e60af91 (diff) | |
| download | riscv-tests-6a4225fae83a1ad9bf9687c13f1046baa401269e.zip riscv-tests-6a4225fae83a1ad9bf9687c13f1046baa401269e.tar.gz riscv-tests-6a4225fae83a1ad9bf9687c13f1046baa401269e.tar.bz2 | |
debug: Park unused harts with a cease instruction. (#434)
`cease` is not a standard RISC-V extension, but is (was?) implemented in
Rocket, and also exists in some SiFive cores. It's useful to test
OpenOCD behavior when a hart becomes unavailable.
See also https://github.com/chipsalliance/rocket-chip/issues/1868
Diffstat (limited to 'debug/testlib.py')
| -rw-r--r-- | debug/testlib.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/debug/testlib.py b/debug/testlib.py index 1559d2c..20264e9 100644 --- a/debug/testlib.py +++ b/debug/testlib.py @@ -1226,13 +1226,19 @@ class GdbTest(BaseTest): del self.gdb BaseTest.classTeardown(self) - def parkOtherHarts(self): + def parkOtherHarts(self, symbol=None): """Park harts besides the currently selected one in loop_forever().""" for hart in self.target.harts: # Park all harts that we're not using in a safe place. if hart != self.hart: self.gdb.select_hart(hart) - self.gdb.p("$pc=loop_forever") + if symbol is None: + if hart.support_cease: + self.gdb.p("$pc=cease") + else: + self.gdb.p("$pc=loop_forever") + else: + self.gdb.p(f"$pc={symbol}") self.gdb.select_hart(self.hart) |