Merge pull request #18 from dark-tree/fd

File system, syscalls, and everything nice

Author: magistermaks

.gitignore

@@ -1,2 +1,3 @@
 build/
 output
+src/kernel/systable.h

README.md

@@ -6,12 +6,15 @@
 # First install QEMU
 sudo apt install qemu-system
 
-# Build all
+# Build all and generate the image with filesystem
 make all
 
 # Start the system in VM
 make run
 
 # Start the system in VM with attached GDB
 make debug
+
+# Generate the floppy disk image with filesystem
+make image
 ```

disks/.gitignore

@@ -0,0 +1,3 @@
+floppy.img
+viewer/build
+

disks/README.md

@@ -0,0 +1,17 @@
+### Usage   
+Create floppy disk image with the contents of the `files` directory.
+```bash
+make image
+```   
+Build simple file browser, which allows to view the contents of the floppy disk image.
+```bash
+make build
+```   
+Build and run the file browser.
+```bash
+make run
+```   
+Generate image and run the file browser.
+```bash
+make all
+```   

disks/files/executable/elf-pic

@@ -0,0 +1 @@
+Contents of this "files" directory will be loaded into a FAT floppy disk image.

disks/files/readme.txt

@@ -0,0 +1 @@
+Haha content!

disks/files/tmp/haha.txt

@@ -0,0 +1,24 @@
+.PHONY : all clean image build run
+
+all: image run
+
+image: build
+	@echo "Creating floppy image..."
+	dd if=/dev/zero of=floppy.img count=1440 bs=1k
+	mkfs.msdos -F 32 floppy.img
+	viewer/build/main -l
+
+build:
+	@echo "Building..."
+	if [ ! -d "viewer/build" ]; then mkdir viewer/build; fi
+	gcc viewer/main.c ../src/kernel/fat.c -I../src/kernel -o viewer/build/main
+
+clean:
+	@echo "Cleaning up..."
+	rm -rf viewer/build
+	rm -f floppy.img
+
+run: build
+	@echo "Running..."
+	viewer/build/main
+