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sortix--sortix/sortix/Makefile

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ifndef O
O:=-O3
endif
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ifndef CPU
CPU=x86
endif
ifeq ($(CPU),x86)
BUILDID=x86
X86FAMILY=1
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CPUDEFINES=-DPLATFORM_X86
CPUFLAGS=-m32
CPULDFLAGS=-melf_i386
CPUASFLAGS=-32
CPUNASMFLAGS=-felf32
CPUOBJS=$(CPU)/boot.o $(CPU)/base.o $(CPU)/x86.o
endif
ifeq ($(CPU),x64)
BUILDID=x64
X86FAMILY=1
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CPUDEFINES=-DPLATFORM_X64
CPUFLAGS=-m64 -ffreestanding -mcmodel=large -mno-red-zone
CPULDFLAGS=-melf64-little -z max-page-size=0x1000
CPUASFLAGS=-64
CPUNASMFLAGS=-felf64
CPUOBJS=$(CPU)/base.o $(CPU)/x64.o
endif
ifdef X86FAMILY
CPUOBJS:=$(CPUOBJS) \
$(CPU)/memorymanagement.o \
x86-family/memorymanagement.o \
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$(CPU)/interrupt.o \
$(CPU)/gdt.o \
$(CPU)/syscall.o \
Implemented the fork() system call and what it needed to work properly. This commit got completely out of control. Added the fork(), getpid(), getppid(), sleep(), usleep() system calls, and aliases in the Maxsi:: namespace. Fixed a bug where zero-byte allocation would fail. Worked on the DescriptorTable class which now works and can fork. Got rid of some massive print-registers statements and replaced them with the portable InterruptRegisters::LogRegisters() function. Removed the SysExecuteOld function and replaced it with Process::Execute(). Rewrote the boot sequence in kernel.cpp such that it now loads the system idle process 'idle' as PID 0, and the initization process 'init' as PID 1. Rewrote the SIGINT hack. Processes now maintain a family-tree structure and keep track of their threads. PIDs are now allocated using a simple hack. Virtual memory per-process can now be allocated using a simple hack. Processes can now be forked. Fixed the Process::Execute function such that it now resets the stack pointer to where the stack actually is - not just a magic value. Removed the old and ugly Process::_endcodesection hack. Rewrote the scheduler into a much cleaner and faster version. Debug code is now moved to designated functions. The noop kernel-thread has been replaced by a simple user-space infinite-loop program 'idle'. The Thread class has been seperated from the Scheduler except in Scheduler- related code. Thread::{Save,Load}Registers has been improved and has been moved to $(CPU)/thread.cpp. Threads can now be forked. A new CreateThread function creates threads properly and portably. Added a MicrosecondsSinceBoot() function. Fixed a crucial bug in MemoryManagement::Fork(). Added an 'idle' user-space program that is a noop infinite loop, which is used by the scheduler when there is nothing to do. Rewrote the 'init' program such that it now forks off a shell, instead of becoming the shell. Added the $$ (current PID) and $PPID (parent PPID) variables to the shell.
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$(CPU)/thread.o \
$(CPU)/scheduler.o \
$(CPU)/process.o \
x86-family/x86-family.o
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CPUFLAGS:=$(CPUFLAGS) -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow
endif
DIRS=. x64 x86 x86-family fs kb kb/layout
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DEFINES:=-DSORTIX_KERNEL -U_GNU_SOURCE $(CPUDEFINES)
ifeq ($(JSSORTIX),1)
DEFINES:=$(DEFINES) -DPLATFORM_SERIAL -DJSSORTIX
BUILDID:=$(BUILDID)-js
endif
ifeq ($(PANIC_SHORT),1)
DEFINES:=$(DEFINES) -DPANIC_SHORT
endif
ifeq ($(DISKWRITE),1)
DEFINES:=$(DEFINES) -DENABLE_DISKWRITE=1
else
DEFINES:=$(DEFINES) -DENABLE_DISKWRITE=0
endif
CPPFLAGSRELEASE=-s $(O)
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CPPFLAGSDEBUG=
CPPFLAGS=-I.. -I. $(CPUDEFINES) $(CPUFLAGS) -std=gnu++0x -Wall -Wextra -nostdlib -fno-builtin -nostartfiles -nodefaultlibs -fno-exceptions -fno-rtti -fno-stack-protector $(DEFINES) $(CPPFLAGSRELEASE)
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OBJS=$(CPUOBJS) \
kernel.o \
descriptor_tables.o \
interrupt.o \
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time.o \
log.o \
utf8.o \
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panic.o \
keyboard.o \
kb/ps2.o \
kb/layout/us.o \
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scheduler.o \
syscall.o \
sound.o \
pci.o \
uart.o \
terminal.o \
linebuffer.o \
logterminal.o \
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vgaterminal.o \
serialterminal.o \
descriptors.o \
device.o \
vga.o \
elf.o \
process.o \
initrd.o \
thread.o \
event.o \
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io.o \
pipe.o \
filesystem.o \
directory.o \
mount.o \
signal.o \
fs/devfs.o \
fs/initfs.o \
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fs/ramfs.o \
ata.o \
../libmaxsi/libmaxsi-sortix.a \
end.o # Must be last
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JSOBJS:=$(subst .o,-js.o,$(OBJS))
all: sortix.bin
# jssortix compilation
jssortix: jssortix.bin
sortix-x86-js.tmp: $(OBJS)
ld -melf_i386 -Ttext 100000 -o sortix-x86-js-internal.out $(OBJS)
objcopy -O binary sortix-x86-js-internal.out $@
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# x64 compilation
x64/boot.o: x64/boot.s
as -64 $< -o $@
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sortix-x64.tmp: $(OBJS) x64/boot.o
ld -N -melf_x86_64 -Ttext 100000 -o sortix-x64-internal.out x64/boot.o $(OBJS)
objcopy sortix-x64-internal.out -O elf32-i386 sortix-x64.tmp
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# x86 compilation
sortix-x86.tmp: $(OBJS)
ld -melf_i386 -Ttext 100000 -o $@ $(OBJS)
# general rules
sortix.bin: sortix-$(BUILDID).tmp
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cp -vu $< $@
%.o: %.cpp
g++ -c $< -o $@ $(CPPFLAGS)
%.o: %.s
as $(CPUASFLAGS) $< -o $@
%.o: %.asm
nasm $(CPUNASMFLAGS) $< -o $@
clean:
for D in $(DIRS); do rm -fv $$D/*.o $$D/*.bin $$D/*.out $$D/*.tmp; done
# Installation into sysroot
install:
mkdir -p $(SYSROOT)/usr/include/sortix
cp $(CPU)/bits.h $(SYSROOT)/usr/include/sortix/bits.h
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