GDT, page frame allocator

2025-02-27 19:48:03 +04:00
commit 6f1c6f1316
31 changed files with 2016 additions and 0 deletions
@@ -0,0 +1,85 @@
+#! /bin/sh
+
+set -ex
+
+srcdir="$(dirname "$0")"
+test -z "$srcdir" && srcdir=.
+
+cd "$srcdir"
+
+clone_repo_commit() {
+    if test -d "$2/.git"; then
+        git -C "$2" reset --hard
+        git -C "$2" clean -fd
+        if ! git -C "$2" checkout $3; then
+            rm -rf "$2"
+        fi
+    else
+        if test -d "$2"; then
+            set +x
+            echo "error: '$2' is not a Git repository"
+            exit 1
+        fi
+    fi
+    if ! test -d "$2"; then
+        git clone $1 "$2"
+        if ! git -C "$2" checkout $3; then
+            rm -rf "$2"
+            exit 1
+        fi
+    fi
+}
+
+download_by_hash() {
+    DOWNLOAD_COMMAND="curl -Lo"
+    if ! command -v $DOWNLOAD_COMMAND >/dev/null 2>&1; then
+        DOWNLOAD_COMMAND="wget -O"
+        if ! command -v $DOWNLOAD_COMMAND >/dev/null 2>&1; then
+            set +x
+            echo "error: Neither curl nor wget found"
+            exit 1
+        fi
+    fi
+    SHA256_COMMAND="sha256sum"
+    if ! command -v $SHA256_COMMAND >/dev/null 2>&1; then
+        SHA256_COMMAND="sha256"
+        if ! command -v $SHA256_COMMAND >/dev/null 2>&1; then
+            set +x
+            echo "error: Cannot find sha256(sum) command"
+            exit 1
+        fi
+    fi
+    if ! test -f "$2" || ! $SHA256_COMMAND "$2" | grep $3 >/dev/null 2>&1; then
+        rm -f "$2"
+        mkdir -p "$2" && rm -rf "$2"
+        $DOWNLOAD_COMMAND "$2" $1
+        if ! $SHA256_COMMAND "$2" | grep $3 >/dev/null 2>&1; then
+            set +x
+            echo "error: Cannot download file '$2' by hash"
+            echo "incorrect hash:"
+            $SHA256_COMMAND "$2"
+            rm -f "$2"
+            exit 1
+        fi
+    fi
+}
+
+clone_repo_commit \
+    https://github.com/osdev0/freestnd-c-hdrs.git \
+    freestnd-c-hdrs \
+    21b59ecd6ef67bb32f893da8288ce08a324d1986
+
+clone_repo_commit \
+    https://github.com/osdev0/freestnd-cxx-hdrs.git \
+    freestnd-cxx-hdrs \
+    d604a4c5033a7a4d610ba41daab3c541be96b43e
+
+clone_repo_commit \
+    https://github.com/osdev0/cc-runtime.git \
+    cc-runtime \
+    576a01179f3298a4795b92f42c088f9f8800b56b
+
+download_by_hash \
+    https://github.com/limine-bootloader/limine/raw/4687a182be23939c2d9f15db970382dc353ed956/limine.h \
+    src/limine.h \
+    6879e626f34c1be25ac2f72bf43b083fc2b53887280bb0fcdaee790e258c6974