OSDev.org

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undefined reference to basic_ifstream

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G++

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make buildimg

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Disk Full

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ARCH = x86_64
TARGET = ../setup/kernel.elf
SRCS = c/kernel.cpp
BUILDDIR = disk
OSNAME = BirdOS
OBJDIR := build
MAINDIR = ../setup

SRCDIR := c
CC = gcc
LD = g++
rwildcard=$(foreach d,$(wildcard $(1:=/*)),$(call rwildcard,$d,$2) $(filter $(subst *,%,$2),$d))

SRC = $(call rwildcard,$(SRCDIR),*.cpp)
OBJS = $(patsubst $(SRCDIR)/%.cpp, $(OBJDIR)/%.o, $(SRC))
all: $(OBJS) link

# UEFI wastes lots and lots of memory. Link our "kernel" at an address (32M) which isn't used by UEFI

$(OBJDIR)/interrupts/interrupts.o: $(SRCDIR)/interrupts/interrupts.cpp
	@ mkdir -p $(@D)
	$(CC) -mno-red-zone -mgeneral-regs-only -ffreestanding -c $^ -o $@

$(OBJDIR)/%.o: $(SRCDIR)/%.cpp
	@ mkdir -p $(@D)
	$(CC) -ffreestanding -fshort-wchar -mno-red-zone -c $^ -o $@

assem:
	@ mkdir -p build/GDT
	nasm c/GDT/GDTASM.asm -f elf64 -o build/GDT/GDTASM.o

link:
	g++ -Wl,-estart -Wl,-z -Wl,max-page-size=0x1000 -Wl,-Ttext=0x01000000 -Wl,-Bsymbolic -static -o $(TARGET) $(OBJS) build/GDT/GDTASM.o


clean:
	rm build/*.o $(TARGET) 2>/dev/null || true

buildimg:
	dd if=/dev/zero of=$(BUILDDIR)/$(OSNAME).img bs=512 count=93750
	mformat -i $(BUILDDIR)/$(OSNAME).img -f 2880 ::
	mmd -i $(BUILDDIR)/$(OSNAME).img ::/EFI
	mmd -i $(BUILDDIR)/$(OSNAME).img ::/EFI/BOOT
	mcopy -i $(BUILDDIR)/$(OSNAME).img $(BUILDDIR)/startup.nsh ::
	mcopy -i $(BUILDDIR)/$(OSNAME).img $(BUILDDIR)/main.efi ::
	mcopy -i $(BUILDDIR)/$(OSNAME).img $(TARGET) ::

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TARGET = ../src/disk/main.efi
SRCS = main.c
EXTRA = kernel.elf
#USE_GCC=1
include uefi/Makefile

kernel.elf:
	@make -C kernel all USE_GCC=$(USE_GCC)

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#include "stream/ostream.h"
#include <iostream>
#include <fstream>
bootparam_t *bootp;

using namespace std;

extern "C" void start(bootparam_t *bootpar)
{
    bootp = bootpar;
    LoadKernel();
    ofstream myFile("hello.txt");
    myFile.open("h");
    myFile << "Hello, world!";
    myFile.close();

    while(true) {
        ActivateCursorBlinker(KeyboardPositionX, KeyboardPositionY);
    };
}