Bump actions/download-artifact from 3 to 4.1.7 in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v3...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ficus.yml

@@ -8,7 +8,6 @@ on:
 
 env:
   BUILD_TYPE: Debug
-  BUILD_PARALLEL: 3
 
 jobs:
   build-ficus-toolchain:
@@ -22,13 +21,106 @@ jobs:
         if: env.ACT=='true'
 
       - name: Install dependencies
-        run: sudo apt-get update && sudo apt-get install -y cmake build-essential pax gcc g++ nasm bison bzip2 flex mtools texinfo libgmp-dev libmpfr-dev libmpc-dev xorriso
+        run: sudo apt-get update && sudo apt-get install -y cmake build-essential pax gcc g++ nasm bison bzip2 flex mtools texinfo libgmp-dev libmpfr-dev libmpc-dev xorriso ccache
 
-      - name: Unpack prebuilt toolchain
-        run: cd ${{github.workspace}} && tar xf toolchain_scripts/toolchain-s1-linux-aarch64.tar.xz
+      - name: CCache cache
+        id: cache-ccache
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/ccache
+          key: ${{ runner.os }}-ccache-${{ github.run_id }}-${{ github.run_attempt }}
+          restore-keys: |
+            ${{ runner.os }}-ccache-${{ github.run_id }}-${{ github.run_attempt }}
+            ${{ runner.os }}-ccache-
 
-      - name: Build ficus toolchain
-        run: source ${{github.workspace}}/env.sh && ${{github.workspace}}/ficus-toolchain/build-all.sh s2only
+      - name: Add ccache to path
+        run: echo "/usr/lib/ccache" >> $GITHUB_PATH
+
+      - name: Print ccache info
+        run: |
+          ccache -p
+          which gcc
+          which g++
+
+      - name: Cache generic toolchain
+        id: cache-toolchain
+        uses: actions/cache/restore@v4
+        env:
+          cache-name: cache-toolchain
+        with:
+          path: |
+            toolchain/gcc-i686-elf-prefix
+            toolchain/gcc-x86_64-elf-prefix
+            toolchain/grub
+            toolchain/limine
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('toolchain_scripts/*') }}
+
+      - if: ${{ steps.cache-toolchain.outputs.cache-hit != 'true' }}
+        name: Build generic toolchain
+        run: source env.sh && toolchain_scripts/build-all.sh && ccache -s
+
+      - name: Save generic toolchain
+        id: cache-toolchain-save
+        uses: actions/cache/save@v4
+        env:
+          cache-name: cache-toolchain
+        with:
+          path: |
+            toolchain/gcc-i686-elf-prefix
+            toolchain/gcc-x86_64-elf-prefix
+            toolchain/grub
+            toolchain/limine
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('toolchain_scripts/*') }}
+
+      - name: Cache s1 toolchain
+        id: cache-toolchain-s1
+        uses: actions/cache/restore@v4
+        env:
+          cache-name: cache-toolchain-s1
+        with:
+          path: |
+            toolchain/gcc-x86_64-ficus-prefix
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('ficus-toolchain/*.sh') }}
+
+      - if: ${{ steps.cache-toolchain-s1.outputs.cache-hit != 'true' }}
+        name: Build ficus toolchain s1
+        run: source ${{github.workspace}}/env.sh && ${{github.workspace}}/ficus-toolchain/build-all.sh s1only && ccache -s
+
+      - name: Save s1 toolchain
+        id: cache-toolchain-s1-save
+        uses: actions/cache/save@v4
+        env:
+          cache-name: cache-toolchain-s1
+        with:
+          path: |
+            toolchain/gcc-x86_64-ficus-prefix
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('ficus-toolchain/*.sh') }}
+
+      - name: Cache s2 toolchain
+        id: cache-toolchain-s2
+        uses: actions/cache/restore@v4
+        env:
+          cache-name: cache-toolchain-s2-v2
+        with:
+          path: |
+            toolchain/gcc-x86_64-ficus-prefix
+            sysroot
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('ficus-toolchain/*.sh') }}-${{ hashFiles('ficus-toolchain/newlib/newlib-4.4.0.20231231/**') }}
+
+      - if: ${{ steps.cache-toolchain-s2.outputs.cache-hit != 'true' }}
+        name: Build ficus toolchain s2
+        run: source ${{github.workspace}}/env.sh && ${{github.workspace}}/ficus-toolchain/build-all.sh s2only && ccache -s
+
+      - name: Save s2 toolchain
+        id: cache-toolchain-s2-save
+        uses: actions/cache/save@v4
+        env:
+          cache-name: cache-toolchain-s2-v2
+        with:
+          path: |
+            toolchain/gcc-x86_64-ficus-prefix
+            sysroot
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('ficus-toolchain/*.sh') }}-${{ hashFiles('ficus-toolchain/newlib/newlib-4.4.0.20231231/**') }}
 
       - name: Tar the toolchain
         run: cd ${{github.workspace}} && tar -czvf toolchain-ficus.tar.xz toolchain sysroot
@@ -56,7 +148,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y cmake build-essential pax gcc g++ nasm bison bzip2 flex mtools texinfo libgmp-dev libmpfr-dev libmpc-dev xorriso
 
       - name: Download toolchain
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: toolchain-ficus
           path: ${{github.workspace}}
@@ -71,7 +163,7 @@ jobs:
 
       - name: Build iso
         # Build your program with the given configuration
-        run: source ${{github.workspace}}/env.sh && cmake --build ${{github.workspace}}/build --target iso --config ${{env.BUILD_TYPE}}  --parallel ${{env.BUILD_PARALLEL}}
+        run: source ${{github.workspace}}/env.sh && cmake --build ${{github.workspace}}/build --target iso --config ${{env.BUILD_TYPE}}  --parallel $(nproc)
 
       - name: Upload isos
         uses: actions/upload-artifact@v3

.github/workflows/unit.yml

@@ -2,15 +2,14 @@ name: Unit tests
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   BUILD_TYPE: Debug
   TEST_MODE: UNIT
-  BUILD_PARALLEL: 3
 
 jobs:
   build:
@@ -35,7 +34,7 @@ jobs:
 
       - name: Build
         # Build your program with the given configuration
-        run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}  --parallel ${{env.BUILD_PARALLEL}}
+        run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}  --parallel $(nproc)
 
       - name: Test
         # Execute tests defined by the CMake configuration.

ficus-toolchain/buildenv.sh

@@ -1,19 +1,13 @@
 #!/bin/bash
 
 if [ -z "$FICUS_ROOT" ]; then
-    echo "$FICUS_ROOT" is blank
+  echo "$FICUS_ROOT" is blank
 fi
 
 export PREFIX="$FICUS_ROOT/toolchain/gcc-x86_64-ficus-prefix/"
 export TARGET=x86_64-ficus
 export PATH="$PREFIX/bin:$PATH"
 
-if [ -z "${BUILD_PARALLEL}" ]
-then
+if [ -z "${BUILD_PARALLEL}" ]; then
   export BUILD_PARALLEL=$(nproc)
 fi
-
-if [ -z "${BUILD_PARALLEL}" ]
-then
-  export BUILD_PARALLEL=$BUILD_PARALLEL
-fi

run.sh

@@ -39,7 +39,7 @@ while [[ $# -gt 0 ]]; do
         exit 1
       fi
       TERM_USED=true
-      # serial
+      # monitor
       QEMU_OPTS="$QEMU_OPTS -monitor stdio"
       shift
       ;;

src/CMakeLists.txt

@@ -28,9 +28,8 @@ target_link_options(kernel.elf PUBLIC
         -mcmodel=large
         -fno-exceptions
         -fno-rtti)
-target_include_directories(kernel.elf PRIVATE ${tools}/limine/prefix/include)
-
 
+add_subdirectory(./limine/)
 add_subdirectory(./arch/)
 add_subdirectory(./kernel/)
 

src/arch/x86/limine.hpp

@@ -1,622 +0,0 @@
-/* BSD Zero Clause License */
-
-/* Copyright (C) 2022-2023 mintsuki and contributors.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef _LIMINE_H
-#define _LIMINE_H 1
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-
-/* Misc */
-
-#ifdef LIMINE_NO_POINTERS
-#define LIMINE_PTR(TYPE) uint64_t
-#else
-#define LIMINE_PTR(TYPE) TYPE
-#endif
-
-#ifdef __GNUC__
-#define LIMINE_DEPRECATED __attribute__((__deprecated__))
-#define LIMINE_DEPRECATED_IGNORE_START \
-    _Pragma("GCC diagnostic push")     \
-            _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
-#define LIMINE_DEPRECATED_IGNORE_END \
-    _Pragma("GCC diagnostic pop")
-#else
-#define LIMINE_DEPRECATED
-#define LIMINE_DEPRECATED_IGNORE_START
-#define LIMINE_DEPRECATED_IGNORE_END
-#endif
-
-#define LIMINE_COMMON_MAGIC 0xc7b1dd30df4c8b88, 0x0a82e883a194f07b
-
-struct limine_uuid {
-    uint32_t a;
-    uint16_t b;
-    uint16_t c;
-    uint8_t  d[8];
-};
-
-#define LIMINE_MEDIA_TYPE_GENERIC 0
-#define LIMINE_MEDIA_TYPE_OPTICAL 1
-#define LIMINE_MEDIA_TYPE_TFTP    2
-
-struct limine_file {
-    uint64_t revision;
-    LIMINE_PTR(void *)
-    address;
-    uint64_t size;
-    LIMINE_PTR(char *)
-    path;
-    LIMINE_PTR(char *)
-    cmdline;
-    uint32_t           media_type;
-    uint32_t           unused;
-    uint32_t           tftp_ip;
-    uint32_t           tftp_port;
-    uint32_t           partition_index;
-    uint32_t           mbr_disk_id;
-    struct limine_uuid gpt_disk_uuid;
-    struct limine_uuid gpt_part_uuid;
-    struct limine_uuid part_uuid;
-};
-
-/* Boot info */
-
-#define LIMINE_BOOTLOADER_INFO_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0xf55038d8e2a1202f, 0x279426fcf5f59740 }
-
-struct limine_bootloader_info_response {
-    uint64_t revision;
-    LIMINE_PTR(char *)
-    name;
-    LIMINE_PTR(char *)
-    version;
-};
-
-struct limine_bootloader_info_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_bootloader_info_response *)
-    response;
-};
-
-/* Stack size */
-
-#define LIMINE_STACK_SIZE_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x224ef0460a8e8926, 0xe1cb0fc25f46ea3d }
-
-struct limine_stack_size_response {
-    uint64_t revision;
-};
-
-struct limine_stack_size_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_stack_size_response *)
-    response;
-    uint64_t stack_size;
-};
-
-/* HHDM */
-
-#define LIMINE_HHDM_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x48dcf1cb8ad2b852, 0x63984e959a98244b }
-
-struct limine_hhdm_response {
-    uint64_t revision;
-    uint64_t offset;
-};
-
-struct limine_hhdm_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_hhdm_response *)
-    response;
-};
-
-/* Framebuffer */
-
-#define LIMINE_FRAMEBUFFER_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x9d5827dcd881dd75, 0xa3148604f6fab11b }
-
-#define LIMINE_FRAMEBUFFER_RGB 1
-
-struct limine_video_mode {
-    uint64_t pitch;
-    uint64_t width;
-    uint64_t height;
-    uint16_t bpp;
-    uint8_t  memory_model;
-    uint8_t  red_mask_size;
-    uint8_t  red_mask_shift;
-    uint8_t  green_mask_size;
-    uint8_t  green_mask_shift;
-    uint8_t  blue_mask_size;
-    uint8_t  blue_mask_shift;
-};
-
-struct limine_framebuffer {
-    LIMINE_PTR(void *)
-    address;
-    uint64_t width;
-    uint64_t height;
-    uint64_t pitch;
-    uint16_t bpp;
-    uint8_t  memory_model;
-    uint8_t  red_mask_size;
-    uint8_t  red_mask_shift;
-    uint8_t  green_mask_size;
-    uint8_t  green_mask_shift;
-    uint8_t  blue_mask_size;
-    uint8_t  blue_mask_shift;
-    uint8_t  unused[7];
-    uint64_t edid_size;
-    LIMINE_PTR(void *)
-    edid;
-    /* Response revision 1 */
-    uint64_t mode_count;
-    LIMINE_PTR(struct limine_video_mode **)
-    modes;
-};
-
-struct limine_framebuffer_response {
-    uint64_t revision;
-    uint64_t framebuffer_count;
-    LIMINE_PTR(struct limine_framebuffer **)
-    framebuffers;
-};
-
-struct limine_framebuffer_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_framebuffer_response *)
-    response;
-};
-
-/* Terminal */
-
-#define LIMINE_TERMINAL_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0xc8ac59310c2b0844, 0xa68d0c7265d38878 }
-
-#define LIMINE_TERMINAL_CB_DEC           10
-#define LIMINE_TERMINAL_CB_BELL          20
-#define LIMINE_TERMINAL_CB_PRIVATE_ID    30
-#define LIMINE_TERMINAL_CB_STATUS_REPORT 40
-#define LIMINE_TERMINAL_CB_POS_REPORT    50
-#define LIMINE_TERMINAL_CB_KBD_LEDS      60
-#define LIMINE_TERMINAL_CB_MODE          70
-#define LIMINE_TERMINAL_CB_LINUX         80
-
-#define LIMINE_TERMINAL_CTX_SIZE     ((uint64_t) (-1))
-#define LIMINE_TERMINAL_CTX_SAVE     ((uint64_t) (-2))
-#define LIMINE_TERMINAL_CTX_RESTORE  ((uint64_t) (-3))
-#define LIMINE_TERMINAL_FULL_REFRESH ((uint64_t) (-4))
-
-/* Response revision 1 */
-#define LIMINE_TERMINAL_OOB_OUTPUT_GET ((uint64_t) (-10))
-#define LIMINE_TERMINAL_OOB_OUTPUT_SET ((uint64_t) (-11))
-
-#define LIMINE_TERMINAL_OOB_OUTPUT_OCRNL  (1 << 0)
-#define LIMINE_TERMINAL_OOB_OUTPUT_OFDEL  (1 << 1)
-#define LIMINE_TERMINAL_OOB_OUTPUT_OFILL  (1 << 2)
-#define LIMINE_TERMINAL_OOB_OUTPUT_OLCUC  (1 << 3)
-#define LIMINE_TERMINAL_OOB_OUTPUT_ONLCR  (1 << 4)
-#define LIMINE_TERMINAL_OOB_OUTPUT_ONLRET (1 << 5)
-#define LIMINE_TERMINAL_OOB_OUTPUT_ONOCR  (1 << 6)
-#define LIMINE_TERMINAL_OOB_OUTPUT_OPOST  (1 << 7)
-
-LIMINE_DEPRECATED_IGNORE_START
-
-struct LIMINE_DEPRECATED limine_terminal;
-
-typedef void (*limine_terminal_write)(struct limine_terminal *, const char *, uint64_t);
-typedef void (*limine_terminal_callback)(struct limine_terminal *, uint64_t, uint64_t, uint64_t, uint64_t);
-
-struct LIMINE_DEPRECATED limine_terminal {
-    uint64_t columns;
-    uint64_t rows;
-    LIMINE_PTR(struct limine_framebuffer *)
-    framebuffer;
-};
-
-struct LIMINE_DEPRECATED limine_terminal_response {
-    uint64_t revision;
-    uint64_t terminal_count;
-    LIMINE_PTR(struct limine_terminal **)
-    terminals;
-    LIMINE_PTR(limine_terminal_write)
-    write;
-};
-
-struct LIMINE_DEPRECATED limine_terminal_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_terminal_response *)
-    response;
-    LIMINE_PTR(limine_terminal_callback)
-    callback;
-};
-
-LIMINE_DEPRECATED_IGNORE_END
-
-/* Paging mode */
-
-#define LIMINE_PAGING_MODE_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x95c1a0edab0944cb, 0xa4e5cb3842f7488a }
-
-#if defined(__x86_64__) || defined(__i386__)
-#define LIMINE_PAGING_MODE_X86_64_4LVL 0
-#define LIMINE_PAGING_MODE_X86_64_5LVL 1
-#define LIMINE_PAGING_MODE_MAX         LIMINE_PAGING_MODE_X86_64_5LVL
-#define LIMINE_PAGING_MODE_DEFAULT     LIMINE_PAGING_MODE_X86_64_4LVL
-#elif defined(__aarch64__)
-#define LIMINE_PAGING_MODE_AARCH64_4LVL 0
-#define LIMINE_PAGING_MODE_AARCH64_5LVL 1
-#define LIMINE_PAGING_MODE_MAX          LIMINE_PAGING_MODE_AARCH64_5LVL
-#define LIMINE_PAGING_MODE_DEFAULT      LIMINE_PAGING_MODE_AARCH64_4LVL
-#elif defined(__riscv) && (__riscv_xlen == 64)
-#define LIMINE_PAGING_MODE_RISCV_SV39 0
-#define LIMINE_PAGING_MODE_RISCV_SV48 1
-#define LIMINE_PAGING_MODE_RISCV_SV57 2
-#define LIMINE_PAGING_MODE_MAX        LIMINE_PAGING_MODE_RISCV_SV57
-#define LIMINE_PAGING_MODE_DEFAULT    LIMINE_PAGING_MODE_RISCV_SV48
-#else
-#error Unknown architecture
-#endif
-
-struct limine_paging_mode_response {
-    uint64_t revision;
-    uint64_t mode;
-    uint64_t flags;
-};
-
-struct limine_paging_mode_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_paging_mode_response *)
-    response;
-    uint64_t mode;
-    uint64_t flags;
-};
-
-/* 5-level paging */
-
-#define LIMINE_5_LEVEL_PAGING_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x94469551da9b3192, 0xebe5e86db7382888 }
-
-LIMINE_DEPRECATED_IGNORE_START
-
-struct LIMINE_DEPRECATED limine_5_level_paging_response {
-    uint64_t revision;
-};
-
-struct LIMINE_DEPRECATED limine_5_level_paging_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_5_level_paging_response *)
-    response;
-};
-
-LIMINE_DEPRECATED_IGNORE_END
-
-/* SMP */
-
-#define LIMINE_SMP_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x95a67b819a1b857e, 0xa0b61b723b6a73e0 }
-
-struct limine_smp_info;
-
-typedef void (*limine_goto_address)(struct limine_smp_info *);
-
-#if defined(__x86_64__) || defined(__i386__)
-
-#define LIMINE_SMP_X2APIC (1 << 0)
-
-struct limine_smp_info {
-    uint32_t processor_id;
-    uint32_t lapic_id;
-    uint64_t reserved;
-    LIMINE_PTR(limine_goto_address)
-    goto_address;
-    uint64_t extra_argument;
-};
-
-struct limine_smp_response {
-    uint64_t revision;
-    uint32_t flags;
-    uint32_t bsp_lapic_id;
-    uint64_t cpu_count;
-    LIMINE_PTR(struct limine_smp_info **)
-    cpus;
-};
-
-#elif defined(__aarch64__)
-
-struct limine_smp_info {
-    uint32_t processor_id;
-    uint32_t gic_iface_no;
-    uint64_t mpidr;
-    uint64_t reserved;
-    LIMINE_PTR(limine_goto_address)
-    goto_address;
-    uint64_t extra_argument;
-};
-
-struct limine_smp_response {
-    uint64_t revision;
-    uint32_t flags;
-    uint64_t bsp_mpidr;
-    uint64_t cpu_count;
-    LIMINE_PTR(struct limine_smp_info **)
-    cpus;
-};
-
-#elif defined(__riscv) && (__riscv_xlen == 64)
-
-struct limine_smp_info {
-    uint32_t processor_id;
-    uint64_t hartid;
-    uint64_t reserved;
-    LIMINE_PTR(limine_goto_address)
-    goto_address;
-    uint64_t extra_argument;
-};
-
-struct limine_smp_response {
-    uint64_t revision;
-    uint32_t flags;
-    uint64_t bsp_hartid;
-    uint64_t cpu_count;
-    LIMINE_PTR(struct limine_smp_info **)
-    cpus;
-};
-
-#else
-#error Unknown architecture
-#endif
-
-struct limine_smp_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_smp_response *)
-    response;
-    uint64_t flags;
-};
-
-/* Memory map */
-
-#define LIMINE_MEMMAP_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x67cf3d9d378a806f, 0xe304acdfc50c3c62 }
-
-#define LIMINE_MEMMAP_USABLE                 0
-#define LIMINE_MEMMAP_RESERVED               1
-#define LIMINE_MEMMAP_ACPI_RECLAIMABLE       2
-#define LIMINE_MEMMAP_ACPI_NVS               3
-#define LIMINE_MEMMAP_BAD_MEMORY             4
-#define LIMINE_MEMMAP_BOOTLOADER_RECLAIMABLE 5
-#define LIMINE_MEMMAP_KERNEL_AND_MODULES     6
-#define LIMINE_MEMMAP_FRAMEBUFFER            7
-
-struct limine_memmap_entry {
-    uint64_t base;
-    uint64_t length;
-    uint64_t type;
-};
-
-struct limine_memmap_response {
-    uint64_t revision;
-    uint64_t entry_count;
-    LIMINE_PTR(struct limine_memmap_entry **)
-    entries;
-};
-
-struct limine_memmap_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_memmap_response *)
-    response;
-};
-
-/* Entry point */
-
-#define LIMINE_ENTRY_POINT_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x13d86c035a1cd3e1, 0x2b0caa89d8f3026a }
-
-typedef void (*limine_entry_point)(void);
-
-struct limine_entry_point_response {
-    uint64_t revision;
-};
-
-struct limine_entry_point_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_entry_point_response *)
-    response;
-    LIMINE_PTR(limine_entry_point)
-    entry;
-};
-
-/* Kernel File */
-
-#define LIMINE_KERNEL_FILE_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0xad97e90e83f1ed67, 0x31eb5d1c5ff23b69 }
-
-struct limine_kernel_file_response {
-    uint64_t revision;
-    LIMINE_PTR(struct limine_file *)
-    kernel_file;
-};
-
-struct limine_kernel_file_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_kernel_file_response *)
-    response;
-};
-
-/* Module */
-
-#define LIMINE_MODULE_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x3e7e279702be32af, 0xca1c4f3bd1280cee }
-
-#define LIMINE_INTERNAL_MODULE_REQUIRED (1 << 0)
-
-struct limine_internal_module {
-    LIMINE_PTR(const char *)
-    path;
-    LIMINE_PTR(const char *)
-    cmdline;
-    uint64_t flags;
-};
-
-struct limine_module_response {
-    uint64_t revision;
-    uint64_t module_count;
-    LIMINE_PTR(struct limine_file **)
-    modules;
-};
-
-struct limine_module_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_module_response *)
-    response;
-
-    /* Request revision 1 */
-    uint64_t internal_module_count;
-    LIMINE_PTR(struct limine_internal_module **)
-    internal_modules;
-};
-
-/* RSDP */
-
-#define LIMINE_RSDP_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0xc5e77b6b397e7b43, 0x27637845accdcf3c }
-
-struct limine_rsdp_response {
-    uint64_t revision;
-    LIMINE_PTR(void *)
-    address;
-};
-
-struct limine_rsdp_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_rsdp_response *)
-    response;
-};
-
-/* SMBIOS */
-
-#define LIMINE_SMBIOS_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x9e9046f11e095391, 0xaa4a520fefbde5ee }
-
-struct limine_smbios_response {
-    uint64_t revision;
-    LIMINE_PTR(void *)
-    entry_32;
-    LIMINE_PTR(void *)
-    entry_64;
-};
-
-struct limine_smbios_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_smbios_response *)
-    response;
-};
-
-/* EFI system table */
-
-#define LIMINE_EFI_SYSTEM_TABLE_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x5ceba5163eaaf6d6, 0x0a6981610cf65fcc }
-
-struct limine_efi_system_table_response {
-    uint64_t revision;
-    LIMINE_PTR(void *)
-    address;
-};
-
-struct limine_efi_system_table_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_efi_system_table_response *)
-    response;
-};
-
-/* Boot time */
-
-#define LIMINE_BOOT_TIME_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x502746e184c088aa, 0xfbc5ec83e6327893 }
-
-struct limine_boot_time_response {
-    uint64_t revision;
-    int64_t  boot_time;
-};
-
-struct limine_boot_time_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_boot_time_response *)
-    response;
-};
-
-/* Kernel address */
-
-#define LIMINE_KERNEL_ADDRESS_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0x71ba76863cc55f63, 0xb2644a48c516a487 }
-
-struct limine_kernel_address_response {
-    uint64_t revision;
-    uint64_t physical_base;
-    uint64_t virtual_base;
-};
-
-struct limine_kernel_address_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_kernel_address_response *)
-    response;
-};
-
-/* Device Tree Blob */
-
-#define LIMINE_DTB_REQUEST \
-    { LIMINE_COMMON_MAGIC, 0xb40ddb48fb54bac7, 0x545081493f81ffb7 }
-
-struct limine_dtb_response {
-    uint64_t revision;
-    LIMINE_PTR(void *)
-    dtb_ptr;
-};
-
-struct limine_dtb_request {
-    uint64_t id[4];
-    uint64_t revision;
-    LIMINE_PTR(struct limine_dtb_response *)
-    response;
-};
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

src/arch/x86/limine_modules.hpp

@@ -5,7 +5,7 @@
 #ifndef FICUS_LIMINE_MODULES_HPP
 #define FICUS_LIMINE_MODULES_HPP
 
-#include "limine.hpp"
+#include "limine.h"
 
 extern volatile struct limine_module_request module_request;
 

src/kernel/FbTty.cpp

@@ -10,19 +10,33 @@
 FbTty::FbTty(Framebuffer *fb) : _fb(fb) {
     _max_col = _fb->dimensions().x / 8;
     _max_row = _fb->dimensions().y / 16;
+    _buf.resize(_max_col);
+    for (auto &b: _buf) {
+        b.resize(_max_row);
+        for (int i = 0; i < _max_row; i++)
+            b[i] = ' ';
+    }
 }
+
+void FbTty::draw_char(int col, int row) {
+    for (int x = 0; x < 8; x++) {
+        for (int y = 0; y < 16; y++) {
+            uint32_t color = (fonts_Terminess_Powerline[_buf[col][row]][y] & (1 << (8 - x))) ? 0xFFFFFF : 0;
+            _fb->set(col * 8 + x, row * 16 + y, color);
+        }
+    }
+}
+
 void FbTty::putchar(char c) {
     if (c == '\n') {
         next_row();
         return;
     }
 
-    for (int x = 0; x < 8; x++) {
-        for (int y = 0; y < 16; y++) {
-            uint32_t color = (fonts_Terminess_Powerline[c][y] & (1 << (8 - x))) ? 0xFFFFFF : 0;
-            _fb->set(_cur_col * 8 + x, _cur_row * 16 + y, color);
-        }
-    }
+    _buf[_cur_col][_cur_row] = c;
+
+    draw_char(_cur_col, _cur_row);
+
     next_col();
 }
 void FbTty::putstr(const char *str) {
@@ -40,10 +54,19 @@ char FbTty::readchar() {
 void FbTty::next_col() {
     _cur_col++;
     _cur_col = _cur_col % _max_col;
-    if (_cur_col == 0) next_row();
+    if (_cur_col == 0) {
+        next_row();
+    } else {
+        _buf[_cur_col][_cur_row] = ' ';
+        draw_char(_cur_col, _cur_row);
+    }
 }
 void FbTty::next_row() {
     _cur_col = 0;
     _cur_row++;
     _cur_row = _cur_row % _max_row;
+    for (int i = 0; i < _max_col; i++) {
+        _buf[i][_cur_row] = ' ';
+        draw_char(i, _cur_row);
+    }
 }

src/kernel/FbTty.hpp

@@ -4,14 +4,15 @@
 
 #ifndef FBTTY_HPP
 #define FBTTY_HPP
+
 #include <PS2Keyboard.hpp>
 #include <Tty.hpp>
-
+#include <Vector.hpp>
 
 class Framebuffer;
 class FbTty : public Tty {
 public:
-    FbTty(Framebuffer *fb);
+             FbTty(Framebuffer *fb);
     virtual ~FbTty() = default;
 
     void putchar(char c) override;
@@ -19,6 +20,8 @@ public:
     char readchar() override;
 
 private:
+    void draw_char(int col, int row);
+
     Framebuffer *_fb;
 
     int _cur_col = 0;
@@ -27,6 +30,8 @@ private:
     int _max_row = 0;
     int _max_col = 0;
 
+    Vector<Vector<char>> _buf;
+
     void next_col();
     void next_row();
 

src/kernel/VMA.hpp

@@ -24,7 +24,6 @@ public:
     VMA &operator=(const VMA &) = delete;
     VMA &operator=(VMA &&)      = delete;
 
-
     /// Map all higher-half pages into the address space
     /// By linking them to same entries as kernel
     void  map_kern();

src/kernel/templates/Vector.hpp

@@ -1,6 +1,7 @@
 #ifndef VECTOR_H
 #define VECTOR_H
 
+#include <memory>
 #include <new>
 #include <utility>
 
@@ -146,6 +147,34 @@ public:
         return out;
     }
 
+    void resize(size_t size) {
+        if (size == _cur_size) return;
+
+        if (size < _cur_size) {
+            for (int i = size; i < _cur_size; i++) {
+                if constexpr (!std::is_trivially_destructible<T>::value)
+                    std::destroy_at(_data + i);
+            }
+            _cur_size = size;
+            compact();
+            return;
+        }
+
+        if (size > _cur_size) {
+            if (_capacity < size) {
+                _capacity = size;
+                _data     = (T *) krealloc(reinterpret_cast<char *>(_data), _capacity * sizeof(T));
+            }
+            for (int i = _cur_size; i < size; i++) {
+                if constexpr (!std::is_trivially_constructible<T>::value)
+                    new (_data + i) T();
+                else
+                    memset((char *) (_data + i), 0, sizeof(T));
+            }
+            _cur_size = size;
+        }
+    }
+
     T       *data() { return _data; }
     const T *data() const { return _data; }
 

src/limine/CMakeLists.txt

@@ -0,0 +1,3 @@
+set(CMAKE_CXX_STANDARD 20)
+
+target_include_directories(kernel.elf PRIVATE ${tools}/limine/prefix/include)

src/test/init.c

@@ -11,7 +11,11 @@
 
 void ls(char *dname) {
     while (dname[0] == ' ' && dname[0] != '\0') dname++;
-    DIR           *rfd = opendir(dname);
+    DIR *rfd = opendir(dname);
+    if (rfd == NULL) {
+        printf("Unknown directory: %s\n", dname);
+        return;
+    }
     struct dirent *cur = readdir(rfd);
     while (cur) {
         printf("%s\n", cur->d_name);
@@ -45,9 +49,11 @@ int main() {
         } else if (strcmp(line, "tasks") == 0) {
             print_tasks();
         } else {
-            if (fork() == 0)
+            if (fork() == 0) {
                 execve(line, 0, 0);
-            else
+                printf("Failed to start: %s\n", line);
+                return 0;
+            } else
                 wait(NULL);
         }
     }