chore: display kernel version

.gitignore

@@ -35,3 +35,4 @@ bochsrc.bxrc
 *.mod
 webring.json
 webring.txt
+kernel/const.inc

kernel/Makefile

@@ -17,6 +17,10 @@ SRCS	= kernel.asm \
 .PHONY: all
 all: $(KERNEL)
 
+PHONY: const.inc
+const.inc: const.inc.in
+	sh $(TOOLSDIR)/version.sh $< $@
+
 $(KERNEL): $(SRCS)
 	$(AS) kernel.asm $@
 

kernel/const.inc.in

@@ -7,9 +7,11 @@ PSIZE = 0x1000
 STPDBOOT_MAGIC = 0x53545044
 
 ; --------- VERSION -------------
-VERSION_MAJOR = 1
+VERSION_MAJOR  = @MAJOR@
-VERSION_MINOR = 0
+VERSION_MINOR  = @MINOR@
-VERSION_COMMIT = "@COMMIT@"
+VERSION_COMMIT equ "@COMMIT@"
+VERSION_FULL   equ "@FULLVERSION@"
+BUILD_DATE     equ "@DATE@"
 
 ; ------------- OTHER -----------
 CR   = 0x0D

kernel/dev/vga_console.inc

@@ -16,7 +16,10 @@ vga_console_clear:
 	rep stosb
 	ret
 
+	;; Function: vga_console_putc
+	;;
+	;; In:
+	;;    AL - charactere to print
 vga_console_putc:
 
 	ret
-

kernel/irq.inc

@@ -1,3 +0,0 @@
-irq_timer:
-	iret 
-

kernel/isr.inc

@@ -1,9 +1,15 @@
+	;; File: isr.inc
 macro ISR [name,error] {
 forward
 	dd isr_#name
+forward
+	local szIntName
+ szIntName db  `name#, 0
 forward
 	isr_#name#:
 		cli
+		mov esi, szIntName
+		call klog
 		if error eq 0
 		push 0
 		end if
@@ -25,6 +31,17 @@ idt_setup:
 	inc ecx
 	cmp ecx, 32
 	jb @b
+@@:
+	mov eax, irq_dummy
+	mov [aInterruptGate + (ecx * 8)], ax
+	mov [aInterruptGate + (ecx * 8) + 2], word 0x08
+
+	mov [aInterruptGate + (ecx * 8) + 5], word 0x8E
+	shr eax, 16
+	mov [aInterruptGate + (ecx * 8) + 6], ax
+	inc ecx
+	cmp ecx, 0x30
+	jb @b
 
 	mov ecx, 0x42
 	mov eax, isr_syscall
@@ -49,6 +66,9 @@ aInterruptGate:
 .end:
 
 
+irq_dummy:
+	iret
+
 isr_common:
 	pusha
 
@@ -61,6 +81,9 @@ isr_common:
 	mov fs, ax
 	mov gs, ax
 
+	mov eax, [esp+IntFrame.intno]
+	push eax
+
 	mov esi, szMsgInterrupt
 	call klog 
 
@@ -110,4 +133,4 @@ ISR \
 	security_exception, 0, \
 	reserved31, 0
 
-szMsgInterrupt db "Interrupt", 0
+szMsgInterrupt db "Interrupt (int: %x)", 0

kernel/kernel.asm

@@ -63,7 +63,7 @@ kmain:
 
 	call idt_setup
 
-	int 0x42
+	;int 0x42
 
 .halt:
 	hlt
@@ -84,7 +84,7 @@ kmain:
 	include 'pic.inc'
 
 
-szMsgKernelAlive db "Kernel is alive", 0
+szMsgKernelAlive db "Kernel (", VERSION_FULL , ") is alive", 0
 szErrorBootProtocol db "Error: wrong magic number", 0
 
 boot_structure BootInfo

kernel/pic.inc

@@ -50,6 +50,20 @@ pic_init:
 
 	ret
 
+	;; Function: pic_eoi
+	;;
+	;; In:
+	;;    EAX - irq
+pic_eoi:
+	cmp eax, 8
+	jb @f
+	mov al, PIC_EOI
+	out PIC2_COMMAND, al
+@@:
+	mov al, PIC_EOI
+	out PIC1_COMMAND, al
+	ret
+
 pic_disable:
 	mov al, 0xFF
 	out PIC1_DATA, al

kernel/sys/cpu.inc

@@ -133,7 +133,7 @@ struc IDTGate {
 	;; > +--------------- |----------------+-----------------|-----------------+
 
 
-struc intframe {
+struc IntFrame {
 	;; registers
 	.edi dd ?
 	.esi dd ?
@@ -161,3 +161,7 @@ struc intframe {
 	.useresp  dd ?
 	.ss       dd ?
 }
+virtual at 0
+  IntFrame IntFrame
+  sizeof.IntFrame:
+end virtual

kernel/syscall.inc

@@ -1,5 +1,7 @@
 SYSCALL_EXIT  = 0x01
 SYSCALL_FORK  = 0x02
+SYSCALL_READ  = 0x03
+SYSCALL_WRITE = 0x04
 
 isr_syscall:
 	push eax

tools/version.sh

@@ -6,6 +6,9 @@ if [ ! -n "$vers" ]; then
 	vers="0.0"
 fi
 
+major="$(echo -n "${vers}" | cut -d. -f1)"
+minor="$(echo -n "${vers}" | cut -d. -f1)"
+
 commit="$(git rev-parse --short HEAD)"
 
 full_vers="${vers}-${commit}"
@@ -13,4 +16,9 @@ if [ -n "$(git status)" ]; then
 	full_vers="${full_vers}-dirty"
 fi
 
-echo -n "${full_vers}"
+sed -e "s/@MAJOR@/${major}/g" \
+	-e "s/@MINOR@/${minor}/g" \
+	-e "s/@COMMIT@/${commit}/g"\
+	-e "s/@FULLVERSION@/${full_vers}/g" \
+	-e "s/@DATE@/$(date)/g" \
+	"$1" > "$2"