trunner: add armv8r52-mps3an536-qemu target

JIRA: CI-468

psh/test.yaml

@@ -1,6 +1,6 @@
 test:
     targets:
-        include: [sparcv8leon3-generic-qemu]
+        include: [sparcv8leon3-generic-qemu, armv8r52-mps3an536-qemu]
 
     tests:
         - name: gibber
@@ -11,12 +11,13 @@ test:
 
         - name: auth
           harness: test-auth.py
+
 
         #FIXME - test-pshlogin.py is only for targets with root
         - name: pshlogin
           harness: test-pshlogin.py
           targets:
-              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu]
+              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu, armv8r52-mps3an536-qemu]
 
         - name: echo
           harness: test-echo.py
@@ -39,7 +40,7 @@ test:
         - name: cat-shells
           harness: test-cat-shells.py
           targets:
-              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu]
+              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu, armv8r52-mps3an536-qemu]
 
         - name: kill
           harness: test-kill.py
@@ -53,21 +54,21 @@ test:
         - name: touch-rootfs
           harness: test-touch-rootfs.py
           targets:
-              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu]
+              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu, armv8r52-mps3an536-qemu]
 
         - name: ls
           harness: test-ls.py
 
         - name: ls-rootfs
           harness: test-ls-rootfs.py
           targets:
-              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu]
+              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu, armv8r52-mps3an536-qemu]
 
         - name: runfile
           harness: test-runfile.py
           targets:
               # runfile applet is not intended for non-rootfs targets
-              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu]
+              exclude: [armv7m7-imxrt106x-evk, armv7m7-imxrt117x-evk, armv7m4-stm32l4x6-nucleo, sparcv8leon3-generic-qemu, armv8r52-mps3an536-qemu]
 
         - name: history
           harness: test-history.py

runner.py

@@ -20,6 +20,7 @@
     RISCV64GenericQemuTarget,
     SPARCV8Leon3GenericQemuTarget,
     ARMv7A9Zynq7000QemuTarget,
+    ARMv8R52MPS3AN536QemuTarget,
     STM32L4x6Target,
     Zynq7000ZedboardTarget,
     IMX6ULLEvkTarget,
@@ -232,6 +233,7 @@ def resolve_targets_and_hosts() -> Tuple[Dict[str, Type[TargetBase]], Dict[str,
         IA32GenericQemuTarget,
         RISCV64GenericQemuTarget,
         ARMv7A9Zynq7000QemuTarget,
+        ARMv8R52MPS3AN536QemuTarget,
         STM32L4x6Target,
         IMXRT106xEvkTarget,
         IMXRT117xEvkTarget,

trunner/dut.py

@@ -202,6 +202,43 @@ def open(self):
         # on proper guest OSes this results in `\r\r\n` which might be incorrectly interpreted by CI log viewers
         # use custom preexec_fn to setup termios of child PTY
         self.pexpect_proc = pexpect.spawn(*self.args, preexec_fn=self._set_termios_raw, **self.kwargs)
+        time.sleep(0.2)
+        self._set_logfiles()
+
+
+class fdspawncustom(pexpect.spawn):
+    """
+    The current UART implementation on the ARMv8R52MPS3AN536 breaks when bytes are sent too fast.
+    To alleviate this problem, we override the pexpect class and introduce a delay in the send function.
+    """
+
+    def send(self, s):
+        ret = 0
+        for c in s:
+            ret += super().send(c)
+            time.sleep(0.03)
+
+        return ret
+
+
+class ARMv8R52MPS3AN536_Dut(ProcessDut):
+    @staticmethod
+    def _set_termios_raw():
+        """set current tty not to process newlines"""
+        attr = termios.tcgetattr(STDOUT_FILENO)
+
+        # disable any newline manilpulations in c_oflag
+        attr[1] &= ~(termios.ONLCR | termios.OCRNL | termios.ONOCR | termios.ONLRET)
+
+        termios.tcsetattr(STDOUT_FILENO, termios.TCSANOW, attr)
+
+    def open(self):
+        # qemu when using stdio serial enforces ONLCR termios flag (converting `\n` to `\r\n`)
+        # on proper guest OSes this results in `\r\r\n` which might be incorrectly interpreted by CI log viewers
+        # use custom preexec_fn to setup termios of child PTY
+        self.pexpect_proc = fdspawncustom(
+            *self.args, preexec_fn=self._set_termios_raw, **self.kwargs
+        )
         self._set_logfiles()
 
 

trunner/target/__init__.py

@@ -8,6 +8,7 @@
     RISCV64GenericQemuTarget,
     ARMv7A9Zynq7000QemuTarget,
     SPARCV8Leon3GenericQemuTarget,
+    ARMv8R52MPS3AN536QemuTarget
 )
 from .host import HostPCGenericTarget
 
@@ -19,6 +20,7 @@
     "RISCV64GenericQemuTarget",
     "SPARCV8Leon3GenericQemuTarget",
     "ARMv7A9Zynq7000QemuTarget",
+    "ARMv8R52MPS3AN536QemuTarget",
     "HostPCGenericTarget",
     "STM32L4x6Target",
     "Zynq7000ZedboardTarget",

trunner/target/emulated.py

@@ -2,7 +2,7 @@
 from typing import Callable
 
 from trunner.ctx import TestContext
-from trunner.dut import QemuDut
+from trunner.dut import QemuDut, ARMv8R52MPS3AN536_Dut
 from trunner.harness import HarnessBuilder, RebooterHarness, ShellHarness, TestStartRunningHarness
 from trunner.types import TestOptions, TestResult
 from .base import TargetBase
@@ -107,3 +107,18 @@ def __init__(self):
     @classmethod
     def from_context(cls, _: TestContext):
         return cls()
+
+
+class ARMv8R52MPS3AN536QemuTarget(QemuTarget):
+    name = "armv8r52-mps3an536-qemu"
+    rootfs = False
+    experimental = True
+
+    def __init__(self):
+        super().__init__("armv8r52-mps3an536-qemu.sh")
+        self.dut = ARMv8R52MPS3AN536_Dut(f"{self.project_dir}/scripts/{self.script}", encoding="utf-8")
+        self.rebooter = QemuDutRebooter(self.dut)
+
+    @classmethod
+    def from_context(cls, _: TestContext):
+        return cls()