From 0cd3ab3fdb2ec2894bba9b223e2f60f40601607c Mon Sep 17 00:00:00 2001
From: Morten Delenk <morten@dark32.cf>
Date: Mon, 24 Apr 2017 17:47:39 +0000
Subject: [PATCH] added a main routine

---
 kernel/CMakeLists.txt        |  4 ++--
 kernel/arch/x86/pc/start.cpp | 11 ++++++++---
 kernel/src/include/base.hpp  |  5 +++++
 kernel/src/main.cpp          | 14 ++++++++++++++
 kernel/src/object_init.cpp   | 12 ++++++++++++
 5 files changed, 41 insertions(+), 5 deletions(-)
 create mode 100644 kernel/src/include/base.hpp
 create mode 100644 kernel/src/main.cpp
 create mode 100644 kernel/src/object_init.cpp

diff --git a/kernel/CMakeLists.txt b/kernel/CMakeLists.txt
index 6f69896..4b4d196 100644
--- a/kernel/CMakeLists.txt
+++ b/kernel/CMakeLists.txt
@@ -30,7 +30,7 @@ LOAD_PROFILE(${ARCH} ${SYSTEM})
 ADD_EXECUTABLE(kernel ${PLATFORM_SRCS} ${ISA_SRCS} ${GENERIC_SRCS})
 SET(CMAKE_ASM-ATT_COMPILE_OBJECT 
     "<CMAKE_C_COMPILER> -g -m32 -x assembler-with-cpp -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_ASM_FLAGS} ${PLATFORM_ASM_FLAGS} -c -o <OBJECT> <SOURCE>")
-SET(CMAKE_C_FLAGS "-g -m32 -w -Werror -Wno-unused -Wno-unused-variable -std=c11 -ffreestanding -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_C_FLAGS} ${PLATFORM_C_FLAGS}")
-SET(CMAKE_CXX_FLAGS "-g -m32 -w -Werror -Wno-unused -Wno-unused-variable -ffreestanding -fno-rtti -fno-exceptions -std=gnu++17 -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_CXX_FLAGS} ${PLATFORM_CXX_FLAGS}")
+SET(CMAKE_C_FLAGS "-g -m32 -w -Werror -Wno-unused -Wno-unused-variable -fno-use-cxa-atexit -std=c11 -ffreestanding -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_C_FLAGS} ${PLATFORM_C_FLAGS}")
+SET(CMAKE_CXX_FLAGS "-g -m32 -w -Werror -Wno-unused -Wno-unused-variable -fno-use-cxa-atexit -ffreestanding -fno-rtti -fno-exceptions -std=gnu++17 -I../../ -I../../libk/include/ -I../../kernel/src/include/ ${ISA_CXX_FLAGS} ${PLATFORM_CXX_FLAGS}")
 SET_TARGET_PROPERTIES(kernel PROPERTIES LINK_FLAGS 
     "-T ../../kernel/${PLATFORM_LAYOUT} -N ${ISA_LINKER_FLAGS} ${PLATFORM_LINKER_FLAGS} -nostdlib -nodefaultlibs -lgcc -Wl,--gc-sections")
diff --git a/kernel/arch/x86/pc/start.cpp b/kernel/arch/x86/pc/start.cpp
index 8960f02..333030d 100644
--- a/kernel/arch/x86/pc/start.cpp
+++ b/kernel/arch/x86/pc/start.cpp
@@ -1,6 +1,11 @@
-#include <tty.hpp>
+#include <base.hpp>
 #include "../../../hw/pc/cgaterm/cgaterm.hpp"
+CGATerm term;
+void main();
 extern "C" void start() {
-    CGATerm x = CGATerm();
-    x << "Hallo!\n";
+    main();
+}
+void drivers_init() {
+    setMainTTY(&term);
+    --term;
 }
diff --git a/kernel/src/include/base.hpp b/kernel/src/include/base.hpp
new file mode 100644
index 0000000..927ef40
--- /dev/null
+++ b/kernel/src/include/base.hpp
@@ -0,0 +1,5 @@
+#pragma once
+#include <tty.hpp>
+#include <kobject.hpp>
+extern TTY *out;
+void setMainTTY(Kobject *obj);
diff --git a/kernel/src/main.cpp b/kernel/src/main.cpp
new file mode 100644
index 0000000..5e963f4
--- /dev/null
+++ b/kernel/src/main.cpp
@@ -0,0 +1,14 @@
+#include <base.hpp>
+void drivers_init();
+extern "C" void(*start_ctors)();
+extern "C" void(*end_ctors)();
+extern "C" void(*start_dtors)();
+extern "C" void(*end_dtors)();
+void main() {
+    for(auto ctor=&start_ctors;ctor<&end_ctors;ctor++)
+        (**ctor)();
+    drivers_init();
+    *out << "Hallo!\n";
+    for(auto dtor=&start_dtors;dtor!=&end_dtors;dtor++)
+        (**dtor)();
+}
diff --git a/kernel/src/object_init.cpp b/kernel/src/object_init.cpp
new file mode 100644
index 0000000..50bc367
--- /dev/null
+++ b/kernel/src/object_init.cpp
@@ -0,0 +1,12 @@
+#include <base.hpp>
+TTY *out;
+bool tty_set = false;
+void setMainTTY(Kobject *obj) {
+    if(obj->type == kobjectType::TTY) {
+        ++*obj;
+        if(tty_set)
+            --*out;
+        out=(TTY*)obj;
+        tty_set=true;
+    }
+}