[PW_SID:959264] riscv control-flow integrity for usermode

.github/scripts/build_ubuntu_defconfig.sh

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+#!/bin/bash
+# SPDX-FileCopyrightText: 2024 Rivos Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set -euox pipefail
+d=$(dirname "${BASH_SOURCE[0]}")
+. $d/series/utils.sh
+
+logs=$(get_logs_dir)
+f=${logs}/build_ubuntu_defconfig.log
+
+date -Iseconds | tee -a ${f}
+echo "Build an ubuntu kernel" | tee -a ${f}
+echo "Top 16 commits" | tee -a ${f}
+git log -16 --abbrev=12 --pretty="commit %h (\"%s\")" | tee -a ${f}
+
+kernel_base_sha=$(git log -1 --pretty=%H $(git log -1 --reverse --pretty=%H .github)^)
+echo "build_name $(git describe --tags ${kernel_base_sha})" | tee -a ${f}
+build_name=$(git describe --tags ${kernel_base_sha})
+
+# Build the kernel that will run LTP
+export CI_TRIPLE="riscv64-linux-gnu"
+cp $d/series/kconfigs/ubuntu_defconfig arch/riscv/configs/
+$d/series/kernel_builder.sh rv64 testsuites plain gcc | tee -a ${f}
+
+kernel_dir="/build/$(gen_kernel_name rv64 testsuites plain gcc)"
+echo $build_name > $kernel_dir/kernel_version
+#tar cJvf --exclude $(basename $kernel_path) modules.tar.xz /build/$(gen_kernel_name rv64 testsuites plain gcc)/

.github/scripts/ci/__init__.py

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+from .base import Base, EndTest, Verdict, submit_pw_check
+from .shelltest import ShellTest

.github/scripts/ci/base.py

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+from abc import ABC, abstractmethod
+from enum import Enum
+import time
+import sys
+
+from libs import utils
+
+sys.path.insert(0, '../libs')
+from libs import log_debug
+
+class Verdict(Enum):
+    PENDING = 0
+    PASS = 1
+    FAIL = 2
+    ERROR = 3
+    SKIP = 4
+    WARNING = 5
+
+
+class EndTest(Exception):
+    """
+    End of Test
+    """
+
+class Base(ABC):
+    """
+    Base class for CI Tests.
+    """
+    def __init__(self):
+        self.start_time = 0
+        self.end_time = 0
+        self.verdict = Verdict.PENDING
+        self.output = ""
+
+    def success(self):
+        self.end_timer()
+        self.verdict = Verdict.PASS
+
+    def error(self, msg):
+        self.verdict = Verdict.ERROR
+        self.output = msg
+        self.end_timer()
+        raise EndTest
+
+    def warning(self, msg):
+        self.verdict = Verdict.WARNING
+        self.output = msg
+        self.end_timer()
+
+    def skip(self, msg):
+        self.verdict = Verdict.SKIP
+        self.output = msg
+        self.end_timer()
+        raise EndTest
+
+    def add_failure(self, msg):
+        self.verdict = Verdict.FAIL
+        if not self.output:
+            self.output = msg
+        else:
+            self.output += "\n" + msg
+
+    def add_failure_end_test(self, msg):
+        self.add_failure(msg)
+        self.end_timer()
+        raise EndTest
+
+    def start_timer(self):
+        self.start_time = time.time()
+
+    def end_timer(self):
+        self.end_time = time.time()
+
+    def elapsed(self):
+        if self.start_time == 0:
+            return 0
+        if self.end_time == 0:
+            self.end_timer()
+        return self.end_time - self.start_time
+
+    def log_err(self, msg):
+        utils.log_error(f"CI: {self.name}: {msg}")
+
+    def log_info(self, msg):
+        utils.log_info(f"CI: {self.name}: {msg}")
+
+    def log_dbg(self, msg):
+        utils.log_debug(f"CI: {self.name}: {msg}")
+
+    @abstractmethod
+    def run(self, worktree=None):
+        """
+        The child class should implement run() method
+        If the test fail, it should raise the EndTest exception
+        """
+        pass
+
+    @abstractmethod
+    def post_run(self):
+        """
+        The child class should implement post_run() method
+        """
+        pass
+
+
+def submit_pw_check(pw, patch, name, verdict, desc, url=None, dry_run=False):
+
+    utils.log_debug(f"Submitting the result to PW: dry_run={dry_run}")
+
+    if not dry_run:
+        state = 0
+
+        if verdict == Verdict.PASS:
+            state = 1
+        if verdict == Verdict.WARNING:
+            state = 2
+        if verdict == Verdict.FAIL:
+            state = 3
+
+        pw.post_check(patch, name, state, desc, url)

.github/scripts/ci/shelltest.py

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+from gettext import install
+import os
+import sys
+
+sys.path.insert(0, '../libs')
+from libs import RepoTool, cmd_run
+
+from ci import Base, Verdict, EndTest, submit_pw_check
+
+class ShellTest(Base):
+    """Run shell test class
+    This class runs a shell based test
+    """
+
+    def __init__(self, ci_data, patch, name, desc, sh):
+
+        # Common
+        self.name = name
+        self.desc = desc
+        self.ci_data = ci_data
+
+        self.sh = sh
+        self.patch = patch
+
+        super().__init__()
+
+        self.log_dbg("Initialization completed")
+
+    def run(self, worktree=None):
+
+        self.log_dbg("Run")
+        self.start_timer()
+
+        current_script_path = os.path.dirname(os.path.abspath(__file__))
+
+        cwd = worktree if worktree else self.ci_data.src_dir
+        cmd = ["bash", f"{current_script_path}/../pw_tests/{self.sh}"]
+        (ret, stdout, stderr) = cmd_run(cmd, cwd=cwd)
+
+        if ret == 0:
+            submit_pw_check(self.ci_data.pw, self.patch,
+                            self.name, Verdict.PASS,
+                            self.name,
+                            None, self.ci_data.config['dry_run'])
+            self.success()
+        elif ret == 250:
+            url = self.ci_data.gh.create_gist(f"pw{self.ci_data.series['id']}-p{self.patch['id']}",
+                                              f"{self.name}-WARNING",
+                                              stdout + '\n' + stderr)
+            submit_pw_check(self.ci_data.pw, self.patch,
+                            self.name, Verdict.WARNING,
+                            self.name,
+                            url, self.ci_data.config['dry_run'])
+            self.warning(stdout + '\n' + stderr)
+        else:
+            url = self.ci_data.gh.create_gist(f"pw{self.ci_data.series['id']}-p{self.patch['id']}",
+                                              f"{self.name}-FAIL",
+                                              stdout + '\n' + stderr)
+            submit_pw_check(self.ci_data.pw, self.patch,
+                            self.name, Verdict.FAIL,
+                            self.name,
+                            url, self.ci_data.config['dry_run'])
+            self.error(stdout + '\n' + stderr)
+
+    def post_run(self):
+
+        self.log_dbg("Post Run...")