Added Kernel Core Entry Tests

Author: scopeInfinity

src/kernel/core.asm

@@ -4,9 +4,10 @@
 
 extern kernel_core_entry
 extern reload_idt_table
+global kernel_core_entry_asm
 
 [SECTION .text]
-       ; protected mode real entry point.
+        ; protected mode real entry point.
         CLI
         mov ax, 0x10
         mov es, ax
@@ -26,3 +27,9 @@ extern reload_idt_table
         STI
         pop eax
         jmp eax
+
+        ; kernel_core_entry_asm currently exists only for tests.
+    kernel_core_entry_asm:
+        ; __TEST_INJECT_KERNEL_CORE_ENTRY__: mov eax, 0x922E52FF
+        ; __TEST_INJECT_KERNEL_CORE_ENTRY__: HLT
+        ret

src/kernel/core.c

@@ -13,6 +13,7 @@
 #include "kernel/process.c"
 
 extern void kernel_enable_interrupts();
+extern void kernel_core_entry_asm();
 
 char command[30];
 int send_int(int a,int b) {
@@ -26,6 +27,9 @@ void kernel_core_entry() {
     print_log("Initializing Kernel");
 
     populate_and_load_idt_table();
+
+    kernel_core_entry_asm();
+
     print_log("Kernel enabling interrupts");
     kernel_enable_interrupts();
     keyboard_init();

tests/kernel_core_entry_test.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+TEST_INJECT_WORD="__TEST_INJECT_KERNEL_CORE_ENTRY__"
+TEST_MAGIC_WANT="922E52FF"
+
+source tests/lib.sh
+
+os_test_up "${TEST_INJECT_WORD:?}" || exit -1
+
+# Test
+set -e
+echo "${SCREEN_CONTENT:?}" | grep "Initializing Kernel" || ( echo "Test Failed!" && exit -1 )
+echo "${SCREEN_CONTENT:?}" | grep "Loading IDT Table" || ( echo "Test Failed!" && exit -1 )
+wait ${QEMU_PID:?}
+echo "$0 passed!!!"

tests/run.sh

@@ -4,6 +4,7 @@ set -e
 # Execute Tests
 bash tests/bootloader_stage1_test.sh
 bash tests/bootloader_stage2_test.sh
+bash tests/kernel_core_entry_test.sh
 
 # Done
 echo "All tests passed!"