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added a main routine

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This commit is contained in:
Morten Delenk 2017-04-24 17:47:39 +00:00
parent ded713bb4e
commit 0cd3ab3fdb
5 changed files with 41 additions and 5 deletions
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4
kernel/CMakeLists.txt
View file

@ -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")

11
kernel/arch/x86/pc/start.cpp
View file

@ -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;
}

5
kernel/src/include/base.hpp Normal file
View file

@ -0,0 +1,5 @@
#pragma once
#include <tty.hpp>
#include <kobject.hpp>
extern TTY *out;
void setMainTTY(Kobject *obj);

14
kernel/src/main.cpp Normal file
View file

@ -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)();
}

12
kernel/src/object_init.cpp Normal file
View file

@ -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;
}
}