Basic block allocation for physical memory allocation.
- 1 block = 4096 bytes : because this will make page fault handling possibly somewhat easier - 1 byte in the bitmap = 8 blocks of physical memory unsure if the allocation is perfect ... guess i'll find out some day if this is actually correct. The bitmap needs 16kb to keep track of 2gb of physical memory. Seems a decent percentage to me.
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11
Makefile
11
Makefile
@ -5,7 +5,7 @@ CC = ${HOME}/opt/cross/bin/i686-elf-gcc
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CPP = ${HOME}/opt/cross/bin/i686-elf-g++
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CFLAGS = -ffreestanding -O2 -Wall -Wextra
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OFILES =$(BUILD_DIR)/boot.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o $(BUILD_DIR)/pit.o $(BUILD_DIR)/time.o $(BUILD_DIR)/keyboard.o $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/sv-terminal.o $(BUILD_DIR)/string.o $(BUILD_DIR)/PageFrameAllocator.o
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OFILES =$(BUILD_DIR)/boot.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o $(BUILD_DIR)/memory.o $(BUILD_DIR)/pit.o $(BUILD_DIR)/time.o $(BUILD_DIR)/keyboard.o $(BUILD_DIR)/io.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/sv-terminal.o $(BUILD_DIR)/string.o
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SRC_DIR = src
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BUILD_DIR = build
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@ -54,7 +54,7 @@ $(BUILD_DIR)/kterm.o:
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$(CPP) -c $(SRC_DIR)/kernel/tty/kterm.cpp -o $(BUILD_DIR)/kterm.o $(CFLAGS) -fno-exceptions -fno-rtti
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$(BUILD_DIR)/boot.o:
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$(AS) $(SRC_DIR)/kernel//boot.S -o $(BUILD_DIR)/boot.o
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$(AS) $(SRC_DIR)/kernel/boot.s -o $(BUILD_DIR)/boot.o
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$(BUILD_DIR)/crti.o:
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$(AS) $(SRC_DIR)/kernel/crti.s -o $(BUILD_DIR)/crti.o
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@ -65,8 +65,6 @@ $(BUILD_DIR)/crtn.o:
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$(BUILD_DIR)/io.o:
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$(CPP) -c $(SRC_DIR)/kernel/io.cpp -o $(BUILD_DIR)/io.o $(CFLAGS) -fno-exceptions -fno-rtti
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$(BUILD_DIR)/PageDirectory.o:
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$(CPP) -c $(SRC_DIR)/kernel/memory/PageDirectory.cpp -o $(BUILD_DIR)/PageDirectory.o $(CFLAGS) -fno-exceptions -fno-rtti
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$(BUILD_DIR)/idt.o:
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$(CPP) -c $(SRC_DIR)/kernel/idt/idt.cpp -o $(BUILD_DIR)/idt.o $(CFLAGS) -fno-exceptions -fno-rtti
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@ -81,8 +79,6 @@ $(BUILD_DIR)/pic.o:
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$(BUILD_DIR)/string.o:
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$(CC) -c $(SRC_DIR)/libc/include/string.c -o $(BUILD_DIR)/string.o $(CFLAGS) -std=gnu99
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$(BUILD_DIR)/PhysicalMemoryManager.o:
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$(CPP) -c $(SRC_DIR)/kernel/memory/PhysicalMemoryManager.cpp -o $(BUILD_DIR)/PhysicalMemoryManager.o $(CFLAGS) -fno-exceptions -fno-rtti
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$(BUILD_DIR)/pit.o:
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$(CPP) -c $(SRC_DIR)/kernel/pit.cpp -o $(BUILD_DIR)/pit.o $(CFLAGS) -fno-exceptions -fno-rtti
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@ -97,3 +93,6 @@ $(BUILD_DIR)/time.o:
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$(BUILD_DIR)/sv-terminal.o:
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$(CPP) -c $(SRC_DIR)/kernel/sv-terminal/superVisorTerminal.cpp -o $(BUILD_DIR)/sv-terminal.o $(CFLAGS) -fno-exceptions -fno-rtti
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$(BUILD_DIR)/memory.o:
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$(CPP) -c $(SRC_DIR)/kernel/memory/memory.cpp -o $(BUILD_DIR)/memory.o $(CFLAGS) -fno-exceptions -fno-rtti
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