Syscalls

.github/workflows/test.yml

@@ -14,11 +14,11 @@ jobs:
       - name: Install apt packages
         run: |
           sudo apt update
-          sudo apt install clang lld llvm grub-efi-amd64-bin mtools
+          sudo apt install clang lld llvm grub-efi-amd64-bin mtools meson ninja-build
 
       - name: Build ModulOS
         run: |
-          make -j$(nproc) build
+          make build
 
       - name: Run test suite
         run: |

LICENSES/MLIBC

@@ -0,0 +1,45 @@
+Copyright (C) 2015-2025 mlibc Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+----
+
+Some parts of mlibc are adapted from musl (http://www.musl-libc.org/), which
+is licensed as follows:
+
+Copyright © 2005-2020 Rich Felker, et al.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Makefile

@@ -20,6 +20,7 @@
 #export DEBUG = 1
 export DEBUG_LOGGING = 1
 export SMP_ENABLE = 1
+#export CHECK_ALLOC = 1
 
 # Global options
 
@@ -83,7 +84,11 @@ COPY_DRIVERS_TO := $(OBJ_DIR)/rootfs/lib/drivers/
 
 COPY_USERLAND_TO := $(OBJ_DIR)/rootfs/
 
-SRC := $(shell find . -type f \( -name "*.c" -o -name "*.S" -o -name "*.h" \))
+SRC_FIND := find . \
+			 \( -path './userland/mlibc' -o -path './build' \) -prune \
+			 -o -type f \( -name "*.c" -o -name "*.S" -o -name "*.h" \) -print
+
+SRC := $(shell $(SRC_FIND))
 
 include $(SRC_TREE_ROOT)/scripts/Makefile.kcflags
 
@@ -95,11 +100,12 @@ all: index build test-all
 
 .PHONY: index
 index: cscope.files
-	ctags --C-kinds=+pxzL -R $(SRC)
-	cscope -q -R -b -i cscope.files
+	ctags --C-kinds=+pxzL -L $<
+	cscope -b -q -i $<
 
 .PHONY: clean
 clean:
+	$(MAKE) -C userland clean
 	-rm -rd $(OBJ_DIR)/ tags cscope.*
 
 .PHONY: test-all
@@ -114,7 +120,7 @@ $(SUBDIRS):
 	$(MAKE) -C $@ build
 
 cscope.files: $(SRC)
-	find . -type f \( -name "*.c" -o -name "*.S" -o -name "*.h" \) > $@
+	$(SRC_FIND) > $@
 
 %/:
 	-mkdir -p $@
@@ -132,15 +138,15 @@ $(TEST_EXEC): %: %.a $(OBJ_DIR)/boot.a $(OBJ_DIR)/kernel.a $(OBJ_DIR)/drivers.a
 
 .PHONY: copy-doc
 copy-doc: COPYING LICENSES | $(COPY_DOC_TO)
-	cp -r $^ $|
+	cp -u -r $^ $|
 
 .PHONY: copy-runtime-drivers
 copy-runtime-drivers: $(RUNTIME_DRIVERS_TARGETS) | $(COPY_DRIVERS_TO)
-	cp -r $^ $|
+	cp -u -r $^ $|
 
 .PHONY: copy-userland
 copy-userland: $(USERLAND_TARGETS) | $(COPY_USERLAND_TO)
-	cp -r $^/* $|
+	cp -u -r $^/* $|
 
 $(OBJ_DIR)/stub.img: | $(OBJ_DIR)/
 	truncate -s 4G $@

README

@@ -3,7 +3,8 @@ An operating system that aims to be customizable and modular to provide a fast u
 
 ## Licensing
 
-This software is provided under the GPLv3 license, found in COPYING. This software also contains third party source code with their own licenses, all found under LICENSES/
+This software is provided under the GPLv3 license, found in COPYING. This project also uses
+mlibc which has a seperate license in LICENCES/MLIBC.
 
 ## Installing
 

boot/multiboot2/boot.S

@@ -50,7 +50,7 @@
 #define CPUID_LONGMODE				0x80000001
 #define CPUID_LONGMODE_EXIST	0x20000000
 
-#define PAEPSE	0x30
+#define PAEPSE		0x30
 
 #define EFER	0xC0000080
 #define LME		0x100

boot/multiboot2/init.c

@@ -26,6 +26,8 @@
 #include <kernel/core/logging.h>
 #include <kernel/core/proc_data.h>
 
+#include <kernel/lib/kmemset.h>
+
 #include <kernel/acpi/tables.h>
 
 #ifdef SERIAL
@@ -142,6 +144,8 @@ static void next_segment(uint64_t* handle, struct mem_segment_t* seg) {
 
 
 void multiboot2_init(struct mb2_info_t* info) {
+	kmemset(&bsp_proc_data, 0, sizeof(struct proc_data_t));
+
 	bsp_proc_data_ptr = &bsp_proc_data;
 	proc_data_ptr = &bsp_proc_data_ptr;
 	proc_data_set_id(0);