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Diffstat (limited to 'arch')
-rw-r--r--arch/i386/boot/syscall.c21
-rw-r--r--arch/i386/boot/tss.c26
-rw-r--r--arch/i386/boot/tss.h39
-rw-r--r--arch/i386/include/kernel/syscall.h (renamed from arch/i386/boot/syscall.h)4
-rw-r--r--arch/i386/include/kernel/vga.h (renamed from arch/i386/boot/vga.h)0
-rw-r--r--arch/i386/kernel/pic.c (renamed from arch/i386/boot/pic.c)0
-rw-r--r--arch/i386/kernel/syscall.c42
-rw-r--r--arch/i386/kernel/tty.c (renamed from arch/i386/boot/tty.c)5
-rw-r--r--arch/i386/make.config6
9 files changed, 52 insertions, 91 deletions
diff --git a/arch/i386/boot/syscall.c b/arch/i386/boot/syscall.c
deleted file mode 100644
index fb613b3..0000000
--- a/arch/i386/boot/syscall.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include "syscall.h"
-#include <kernel/io.h>
-#include <stddef.h>
-
-void *(*syscall_handlers[30])(struct isr_frame *frame);
-
-void syscall_dispatch(struct isr_frame *frame) {
- if (syscall_handlers[frame->eax] != NULL)
- syscall_handlers[frame->eax](frame);
- else
- kprintf("Error: Invalid system call number: %d\n", frame->eax);
- __asm__ volatile("cli;hlt");
-}
-
-void register_syscall(void *handler(struct isr_frame*), int num) {
- syscall_handlers[num] = handler;
-}
-
-void print_hello(struct isr_frame *frame) {
- kprintf("Hello syscall\n");
-}
diff --git a/arch/i386/boot/tss.c b/arch/i386/boot/tss.c
deleted file mode 100644
index 2edfa76..0000000
--- a/arch/i386/boot/tss.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include "tss.h"
-#include <kernel/string.h>
-
-struct tss tss_entry;
-
-uint64_t create_tss_entry(uint16_t ss0, uint32_t esp0) {
- uint32_t base = (uint32_t)&tss_entry;
- uint32_t limit = base + sizeof(&tss_entry);
- uint64_t ret = create_gdt_entry(base, limit, 0xE9);
-
- memset(&tss_entry, 0, sizeof(struct tss));
- tss_entry.ss0 = ss0;
- tss_entry.esp0 = esp0;
- tss_entry.cs = 0x08;
- tss_entry.ss = 0x13;
- tss_entry.ds = 0x13;
- tss_entry.es = 0x13;
- tss_entry.fs = 0x13;
- tss_entry.gs = 0x13;
- tss_entry.io_offset = sizeof(struct tss) & 0xFFFF;
- return ret;
-}
-
-void set_kernel_stack(uint32_t stack) {
- tss_entry.esp0 = stack;
-}
diff --git a/arch/i386/boot/tss.h b/arch/i386/boot/tss.h
deleted file mode 100644
index 28bae6e..0000000
--- a/arch/i386/boot/tss.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#ifndef I386_TSS_H
-#define I386_TSS_H
-
-#include <stdint.h>
-
-struct tss {
- uint32_t link;
- uint32_t esp0;
- uint32_t ss0;
- uint32_t esp1;
- uint32_t ss2;
- uint32_t cr3;
- uint32_t eip;
- uint32_t eflags;
- uint32_t eax;
- uint32_t ecx;
- uint32_t edx;
- uint32_t ebx;
- uint32_t esp;
- uint32_t ebp;
- uint32_t esi;
- uint32_t edi;
- uint32_t es;
- uint32_t cs;
- uint32_t ss;
- uint32_t ds;
- uint32_t fs;
- uint32_t gs;
- uint32_t ldtr;
- uint32_t io_offset;
-}__attribute__((packed));
-
-void flush_tss(void);
-
-uint64_t create_gdt_entry(uint32_t base, uint32_t limit, uint16_t flag);
-uint64_t create_tss_entry(uint16_t ss0, uint32_t esp0);
-void set_kernel_stack(uint32_t stack);
-
-#endif
diff --git a/arch/i386/boot/syscall.h b/arch/i386/include/kernel/syscall.h
index 376fb7c..cded732 100644
--- a/arch/i386/boot/syscall.h
+++ b/arch/i386/include/kernel/syscall.h
@@ -5,5 +5,9 @@
void syscall_dispatch(struct isr_frame *frame);
void register_syscall(void *handler(struct isr_frame*), int num);
+void sys_stop(struct isr_frame *frame);
+void sys_status(struct isr_frame *frame);
+
+void dump_reg(struct isr_frame *frame);
#endif
diff --git a/arch/i386/boot/vga.h b/arch/i386/include/kernel/vga.h
index e89f202..e89f202 100644
--- a/arch/i386/boot/vga.h
+++ b/arch/i386/include/kernel/vga.h
diff --git a/arch/i386/boot/pic.c b/arch/i386/kernel/pic.c
index 69a0785..69a0785 100644
--- a/arch/i386/boot/pic.c
+++ b/arch/i386/kernel/pic.c
diff --git a/arch/i386/kernel/syscall.c b/arch/i386/kernel/syscall.c
new file mode 100644
index 0000000..570f0de
--- /dev/null
+++ b/arch/i386/kernel/syscall.c
@@ -0,0 +1,42 @@
+#include <kernel/syscall.h>
+#include <kernel/io.h>
+#include <stddef.h>
+
+void *(*syscall_handlers[30])(struct isr_frame *frame);
+
+void syscall_dispatch(struct isr_frame *frame) {
+ if (syscall_handlers[frame->eax] != NULL)
+ syscall_handlers[frame->eax](frame);
+ else
+ kprintf("Error: Invalid system call number: %d\n", frame->eax);
+ __asm__ volatile("cli;hlt");
+}
+
+void register_syscall(void *handler(struct isr_frame*), int num) {
+ syscall_handlers[num] = handler;
+}
+
+void sys_stop(struct isr_frame *frame) {
+ kprintf("SYSTEM CALL: STOP\n");
+ halt_catch_fire(frame);
+}
+
+void sys_status(struct isr_frame *frame) {
+ kprintf("SYSTEM CALL: STATUS\n");
+ dump_reg(frame);
+}
+
+void dump_reg(struct isr_frame *frame) {
+ kprintf("Registers at interrupt:\n");
+ kprintf("\tEAX = %x\n", frame->eax);
+ kprintf("\tEBX = %x\n", frame->ebx);
+ kprintf("\tECX = %x\n", frame->ecx);
+ kprintf("\tEDX = %x\n", frame->edx);
+ kprintf("\tESI = %x\n", frame->esi);
+ kprintf("\tEDI = %x\n", frame->edi);
+ kprintf("\tESP = %x\n", frame->esp);
+ kprintf("\tEBP = %x\n", frame->ebp);
+ kprintf("\tEIP = %x\n", frame->eip);
+ kprintf("\tEFLAGS = %x\n", frame->eflags);
+ kprintf("Current code selector: %d\n", frame->cs);
+}
diff --git a/arch/i386/boot/tty.c b/arch/i386/kernel/tty.c
index aa77736..f929408 100644
--- a/arch/i386/boot/tty.c
+++ b/arch/i386/kernel/tty.c
@@ -1,4 +1,4 @@
-#include "vga.h"
+#include <kernel/vga.h>
#include <kernel/tty.h>
#include <kernel/string.h>
#include <stddef.h>
@@ -6,7 +6,8 @@
static const size_t VGA_WIDTH = 80;
static const size_t VGA_HEIGHT = 25;
-static uint16_t *const VGA_MEMORY = (uint16_t*)0xC03FF000;
+//static uint16_t *const VGA_MEMORY = (uint16_t*)0xC03FF000;
+static uint16_t *const VGA_MEMORY = (uint16_t*)0xB8000;
static size_t terminal_row;
static size_t terminal_column;
diff --git a/arch/i386/make.config b/arch/i386/make.config
index 82e8faf..ec9c631 100644
--- a/arch/i386/make.config
+++ b/arch/i386/make.config
@@ -5,9 +5,9 @@ KERNEL_ARCH_LIBS=
KERNEL_ARCH_OBJS=$(ARCHDIR)/boot/boot.o \
$(ARCHDIR)/boot/isr.o \
- $(ARCHDIR)/boot/tty.o \
- $(ARCHDIR)/boot/pic.o \
$(ARCHDIR)/boot/idt.o \
- $(ARCHDIR)/boot/syscall.o \
$(ARCHDIR)/boot/gdt.o \
+ $(ARCHDIR)/kernel/tty.o \
$(ARCHDIR)/kernel/serial.o \
+ $(ARCHDIR)/kernel/pic.o \
+ $(ARCHDIR)/kernel/syscall.o \
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 04:14:48 +0000