adding ci files

.github/scripts/helpers.sh

@@ -0,0 +1,13 @@
+# SPDX-FileCopyrightText: 2023 Rivos Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions
+
+group_start() {
+    echo "::group::$1"
+}
+
+group_end() {
+    echo "::endgroup::"
+}

.github/scripts/patches.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# SPDX-FileCopyrightText: 2023 Rivos Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set -euo pipefail
+
+d=$(dirname "${BASH_SOURCE[0]}")
+
+. ${d}/helpers.sh
+
+basesha=$(git log -1 --pretty=%H .github/scripts/helpers.sh)
+patches=( $(git rev-list --reverse ${basesha}..HEAD) )
+
+group_start "Per-patch"
+cnt=1
+for i in "${patches[@]}"; do
+    tests=( $(ls ${d}/patches/*.sh) )
+    tcnt=1
+    for j in "${tests[@]}"; do
+        git reset --hard $i
+        msg="Patch ${cnt}/${#patches[@]}: Test ${tcnt}/${#tests[@]}: ${j}"
+        echo "::group::${msg} @ $(date --utc +%Y-%m-%dT%H:%M:%S.%NZ)"
+        bash ${j} "${msg}" || true
+        echo "Completed $(date --utc +%Y-%m-%dT%H:%M:%S.%NZ)"
+        echo "::endgroup::"
+        tcnt=$(( tcnt + 1 ))
+    done
+    cnt=$(( cnt + 1 ))
+done
+group_end

.github/scripts/patches/build_rv32_defconfig.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2022 by Rivos Inc.
+
+tmpdir=build
+tmpfile=$(mktemp)
+rc=0
+
+tuxmake --wrapper ccache --target-arch riscv --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir --toolchain llvm -z none -k rv32_defconfig \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	> $tmpfile || rc=1
+
+if [ $rc -ne 0 ]; then
+	echo "::error::FAIL PATCH: $1"
+	grep "\(warning\|error\):" $tmpfile >&2
+else
+	echo "::notice::OK PATCH: $1"
+fi
+
+rm -rf $tmpdir $tmpfile
+
+exit $rc

.github/scripts/patches/build_rv64_clang_allmodconfig.sh

@@ -0,0 +1,116 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2019 Netronome Systems, Inc.
+
+# Modified tests/patch/build_defconfig_warn.sh for RISC-V builds
+
+tmpfile_e=$(mktemp)
+tmpfile_o=$(mktemp)
+tmpfile_n=$(mktemp)
+
+tmpdir_b=build_llvm
+tmpdir_o=output
+
+rc=0
+
+echo "Redirect to $tmpfile_o and $tmpfile_n"
+
+HEAD=$(git rev-parse HEAD)
+
+echo "Tree base:"
+git log -1 --pretty='%h ("%s")' HEAD~
+
+echo "Building the whole tree with the patch"
+
+tuxmake --wrapper ccache --target-arch riscv -e PATH=$PATH --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir_o -b $tmpdir_b --toolchain llvm -z none --kconfig allmodconfig \
+	-K CONFIG_WERROR=n -K CONFIG_RANDSTRUCT_NONE=y W=1 \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	config default \
+	> $tmpfile_e || rc=1
+
+if [ $rc -eq 1 ]
+then
+	echo "::error::FAIL PATCH: $1"
+	grep "\(error\):" $tmpfile_e >&2
+	rm -rf $tmpdir_o $tmpfile_o $tmpfile_n $tmpdir_b $tmpfile_e
+	exit $rc
+fi
+
+current=$(grep -c "\(warning\|error\):" $tmpfile_n)
+
+git checkout -q HEAD~
+
+echo "Building the tree before the patch"
+
+tuxmake --wrapper ccache --target-arch riscv -e PATH=$PATH --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir_o -b $tmpdir_b --toolchain llvm -z none --kconfig allmodconfig \
+	-K CONFIG_WERROR=n -K CONFIG_RANDSTRUCT_NONE=y W=1 \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	config default \
+	> $tmpfile_o
+
+incumbent=$(grep -c "\(warning\|error\):" $tmpfile_o)
+
+git checkout -q $HEAD
+
+echo "Building the tree with the patch"
+
+tuxmake --wrapper ccache --target-arch riscv -e PATH=$PATH --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir_o -b $tmpdir_b --toolchain llvm -z none --kconfig allmodconfig \
+	-K CONFIG_WERROR=n -K CONFIG_RANDSTRUCT_NONE=y W=1 \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	config default \
+	> $tmpfile_n || rc=1
+
+if [ $rc -eq 1 ]
+then
+	echo "::error::FAIL PATCH: $1"
+	grep "\(warning\|error\):" $tmpfile_n >&2
+	rm -rf $tmpdir_o $tmpfile_o $tmpfile_n $tmpdir_b
+	exit $rc
+fi
+
+current=$(grep -c "\(warning\|error\):" $tmpfile_n)
+
+if [ $current -gt $incumbent ]; then
+  echo "New errors added:" 1>&2
+
+  tmpfile_errors_before=$(mktemp)
+  tmpfile_errors_now=$(mktemp)
+  grep "\(warning\|error\):" $tmpfile_o | sort | uniq -c > $tmpfile_errors_before
+  grep "\(warning\|error\):" $tmpfile_n | sort | uniq -c > $tmpfile_errors_now
+
+  diff -U 0 $tmpfile_errors_before $tmpfile_errors_now 1>&2
+
+  rm $tmpfile_errors_before $tmpfile_errors_now
+
+  echo "Per-file breakdown" 1>&2
+  tmpfile_fo=$(mktemp)
+  tmpfile_fn=$(mktemp)
+
+  grep "\(warning\|error\):" $tmpfile_o | sed -n 's@\(^\.\./[/a-zA-Z0-9_.-]*.[ch]\):.*@\1@p' | sort | uniq -c \
+    > $tmpfile_fo
+  grep "\(warning\|error\):" $tmpfile_n | sed -n 's@\(^\.\./[/a-zA-Z0-9_.-]*.[ch]\):.*@\1@p' | sort | uniq -c \
+    > $tmpfile_fn
+
+  diff -U 0 $tmpfile_fo $tmpfile_fn 1>&2
+  rm $tmpfile_fo $tmpfile_fn
+  echo "::error::FAIL pre: $incumbent post: $current PATCH: $1"
+  rc=1
+fi
+
+rm -rf $tmpdir_o $tmpfile_o $tmpfile_n $tmpdir_b $tmpfile_e
+
+if [ $rc -eq 0 ]; then
+	echo "::notice::OK PATCH: $1"
+fi
+
+exit $rc

.github/scripts/patches/build_rv64_gcc_allmodconfig.sh

@@ -0,0 +1,115 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2019 Netronome Systems, Inc.
+
+# Modified tests/patch/build_defconfig_warn.sh for RISC-V builds
+
+tmpfile_e=$(mktemp)
+tmpfile_o=$(mktemp)
+tmpfile_n=$(mktemp)
+
+tmpdir_b=build_gcc
+tmpdir_o=output
+
+rc=0
+
+echo "Redirect to $tmpfile_o and $tmpfile_n"
+
+HEAD=$(git rev-parse HEAD)
+
+echo "Tree base:"
+git log -1 --pretty='%h ("%s")' HEAD~
+
+echo "Building the whole tree with the patch"
+
+tuxmake --wrapper ccache --target-arch riscv -e PATH=$PATH --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir_o -b $tmpdir_b --toolchain gcc -z none --kconfig allmodconfig \
+	-K CONFIG_WERROR=n -K CONFIG_GCC_PLUGINS=n W=1 \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	config default \
+	> $tmpfile_e || rc=1
+
+if [ $rc -eq 1 ]
+then
+	echo "::error::FAIL PATCH: $1"
+	grep "\(error\):" $tmpfile_e >&2
+	rm -rf $tmpdir_o $tmpfile_o $tmpfile_n $tmpdir_b $tmpfile_e
+	exit $rc
+fi
+
+git checkout -q HEAD~
+
+echo "Building the tree before the patch"
+
+tuxmake --wrapper ccache --target-arch riscv -e PATH=$PATH --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir_o -b $tmpdir_b --toolchain gcc -z none --kconfig allmodconfig \
+	-K CONFIG_WERROR=n -K CONFIG_GCC_PLUGINS=n W=1 \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	config default \
+	> $tmpfile_o
+
+incumbent=$(grep -c "\(warning\|error\):" $tmpfile_o)
+
+git checkout -q $HEAD
+
+echo "Building the tree with the patch"
+
+tuxmake --wrapper ccache --target-arch riscv -e PATH=$PATH --directory . \
+	--environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+	--environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+	-o $tmpdir_o -b $tmpdir_b --toolchain gcc -z none --kconfig allmodconfig \
+	-K CONFIG_WERROR=n -K CONFIG_GCC_PLUGINS=n W=1 \
+	CROSS_COMPILE=riscv64-linux-gnu- \
+	config default \
+	> $tmpfile_n || rc=1
+
+if [ $rc -eq 1 ]
+then
+	echo "::error::FAIL PATCH: $1"
+	grep "\(warning\|error\):" $tmpfile_n >&2
+	rm -rf $tmpdir_o $tmpfile_o $tmpfile_n $tmpdir_b
+	exit $rc
+fi
+
+current=$(grep -c "\(warning\|error\):" $tmpfile_n)
+
+if [ $current -gt $incumbent ]; then
+  echo "New errors added:" 1>&2
+
+  tmpfile_errors_before=$(mktemp)
+  tmpfile_errors_now=$(mktemp)
+  grep "\(warning\|error\):" $tmpfile_o | sort | uniq -c > $tmpfile_errors_before
+  grep "\(warning\|error\):" $tmpfile_n | sort | uniq -c > $tmpfile_errors_now
+
+  diff -U 0 $tmpfile_errors_before $tmpfile_errors_now 1>&2
+
+  rm $tmpfile_errors_before $tmpfile_errors_now
+
+  echo "Per-file breakdown" 1>&2
+  tmpfile_fo=$(mktemp)
+  tmpfile_fn=$(mktemp)
+
+  grep "\(warning\|error\):" $tmpfile_o | sed -n 's@\(^\.\./[/a-zA-Z0-9_.-]*.[ch]\):.*@\1@p' | sort | uniq -c \
+    > $tmpfile_fo
+  grep "\(warning\|error\):" $tmpfile_n | sed -n 's@\(^\.\./[/a-zA-Z0-9_.-]*.[ch]\):.*@\1@p' | sort | uniq -c \
+    > $tmpfile_fn
+
+  diff -U 0 $tmpfile_fo $tmpfile_fn 1>&2
+  rm $tmpfile_fo $tmpfile_fn
+  echo "::error::FAIL pre: $incumbent post: $current PATCH: $1"
+
+  rc=1
+fi
+
+rm -rf $tmpdir_o $tmpfile_o $tmpfile_n $tmpdir_b $tmpfile_e
+
+if [ $rc -eq 0 ]; then
+	echo "::notice::OK PATCH: $1"
+fi
+
+exit $rc

.github/scripts/patches/build_rv64_nommu_k210_defconfig.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2022 by Rivos Inc.
+
+tmpdir=$(mktemp -d)
+tmpfile=$(mktemp)
+rc=0
+
+tuxmake --wrapper ccache --target-arch riscv --directory . \
+        --environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+        --environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+        -o $tmpdir --toolchain gcc -z none -k nommu_k210_defconfig \
+        CROSS_COMPILE=riscv64-linux-gnu- \
+        > $tmpfile || rc=1
+
+if [ $rc -ne 0 ]; then
+  echo "::error::FAIL PATCH: $1"
+  grep "\(warning\|error\):" $tmpfile >&2
+else
+  echo "::notice::OK PATCH: $1"
+fi
+
+rm -rf $tmpdir $tmpfile
+
+exit $rc

.github/scripts/patches/build_rv64_nommu_virt_defconfig.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2022 by Rivos Inc.
+
+tmpdir=$(mktemp -d)
+tmpfile=$(mktemp)
+rc=0
+
+tuxmake --wrapper ccache --target-arch riscv --directory . \
+        --environment=KBUILD_BUILD_TIMESTAMP=@1621270510 \
+        --environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake \
+        -o $tmpdir --toolchain gcc -z none -k nommu_virt_defconfig \
+        CROSS_COMPILE=riscv64-linux-gnu- \
+        > $tmpfile || rc=1
+
+if [ $rc -ne 0 ]; then
+  echo "::error::FAIL PATCH: $1"
+  grep "\(warning\|error\):" $tmpfile >&2
+else
+  echo "::notice::OK PATCH: $1"
+fi
+
+rm -rf $tmpdir $tmpfile
+
+exit $rc

.github/scripts/patches/checkpatch.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2019 Netronome Systems, Inc.
+
+IGNORED=\
+COMMIT_LOG_LONG_LINE,\
+MACRO_ARG_REUSE,\
+ALLOC_SIZEOF_STRUCT,\
+NO_AUTHOR_SIGN_OFF,\
+GIT_COMMIT_ID,\
+CAMELCASE
+
+tmpfile=$(mktemp)
+
+./scripts/checkpatch.pl --strict --ignore=$IGNORED -g HEAD | tee $tmpfile
+
+grep 'total: 0 errors, 0 warnings, 0 checks' $tmpfile
+ret=$?
+
+# return 250 (warning) if there are not errors
+[ $ret -ne 0 ] && grep -P 'total: 0 errors, \d+ warnings, \d+ checks' $tmpfile && ret=250
+
+if [ $ret -ne 0 ]; then
+  echo "::error::FAIL PATCH: $1"
+  grep '\(WARNING\|ERROR\|CHECK\): ' $tmpfile | LC_COLLATE=C sort -u
+else
+  echo "::notice::OK PATCH: $1"
+  grep 'total: ' $tmpfile | LC_COLLATE=C sort -u
+fi
+
+rm $tmpfile
+
+exit $ret
+
+# ./scripts/checkpatch.pl --ignore=SPACING_CAST,LONG_LINE,LONG_LINE_COMMENT,LONG_LINE_STRING,LINE_SPACING_STRUCT,FILE_PATH_CHANGES,CAMELCASE,OPEN_ENDED_LINE,AVOID_EXTERNS_HEADER,UNCOMMENTED_DEFINITION