sortix-mirror/sortix/Makefile

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Makefile
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include ../compiler.mak
include ../version.mak
include ../dirs.mak
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ifndef OPTLEVEL
OPTLEVEL:=-O2
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endif
ifeq ($(CPU),x86)
BUILDID=x86
X86FAMILY=1
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CPUFLAGS=
CPULDFLAGS=
CPUOBJS:=$(CPU)/boot.o $(CPU)/base.o $(CPU)/x86.o
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endif
ifeq ($(CPU),x64)
BUILDID=x64
X86FAMILY=1
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CPUFLAGS=-ffreestanding -mno-red-zone
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CPULDFLAGS=
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CPUOBJS:=$(CPU)/base.o $(CPU)/x64.o
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endif
ifdef X86FAMILY
CPUOBJS:=$(CPUOBJS) \
$(CPU)/memorymanagement.o \
x86-family/memorymanagement.o \
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$(CPU)/interrupt.o \
$(CPU)/gdt.o \
x86-family/gdt.o \
$(CPU)/idt.o \
x86-family/idt.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 The noop kernel-thread has been replaced by a simple user-space infinite-loop program 'idle'.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/msr.o \
x86-family/float.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
ifeq ($(PANIC_SHORT),1)
DEFINES:=$(DEFINES) -DPANIC_SHORT
endif
ifeq ($(DISKWRITE),1)
DEFINES:=$(DEFINES) -DENABLE_DISKWRITE=1
else
DEFINES:=$(DEFINES) -DENABLE_DISKWRITE=0
endif
ifeq ($(CALLTRACE),1)
DEFINES:=$(DEFINES) -DENABLE_CALLTRACE=1
else
DEFINES:=$(DEFINES) -DENABLE_CALLTRACE=0
endif
ifdef VERSION
DEFINES:=$(DEFINES) -DVERSIONSTR=\"$(VERSION)\"
endif
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INCLUDES=-I. -Iinclude
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CPPFLAGS=$(INCLUDES) $(DEFINES)
ifeq ($(DEBUG_KERNEL),1)
FLAGSDEBUG=-g3
else
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FLAGSDEBUG=$(OPTLEVEL)
endif
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FLAGS=$(CPUFLAGS) -Wall -Wall -Wextra -nostdlib -nostartfiles \
-nodefaultlibs -fno-stack-protector $(FLAGSDEBUG)
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CFLAGS=$(FLAGS)
CXXFLAGS=$(FLAGS) -std=gnu++0x -fno-exceptions -fno-rtti
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ASFLAGS=
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STATICLIBS=\
-lc-sortix \
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-lgcc \
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HEADERDIRS:=$(shell find include -type d)
HEADERS:=$(shell find include -type f)
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OBJS=$(CPUOBJS) \
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ata.o \
bga.o \
calltrace.o \
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com.o \
$(CPU)/calltrace.o \
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$(CPU)/kthread.o \
crc32.o \
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descriptors.o \
device.o \
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directory.o \
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dispmsg.o \
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elf.o \
filesystem.o \
fs/devfs.o \
fs/initfs.o \
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fs/ramfs.o \
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fs/util.o \
fs/videofs.o \
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initrd.o \
interlock.o \
interrupt.o \
io.o \
kb/layout/us.o \
kb/ps2.o \
kernelinfo.o \
kernel.o \
keyboard.o \
kthread.o \
lfbtextbuffer.o \
linebuffer.o \
log.o \
logterminal.o \
memorymanagement.o \
mount.o \
panic.o \
pci.o \
pipe.o \
process.o \
refcount.o \
scheduler.o \
serialterminal.o \
signal.o \
sound.o \
string.o \
syscall.o \
terminal.o \
textbuffer.o \
textterminal.o \
thread.o \
time.o \
uart.o \
utf8.o \
vga.o \
vgatextbuffer.o \
video.o \
worker.o \
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ALLOBJS=\
$(OBJS) \
end.o
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all: sortix.bin
.PHONY: all headers clean install install-include-dirs install-headers
headers:
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# x64 compilation
x64/boot.o: x64/boot.s
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$(HOSTAS) -64 $< -o $@
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sortix-x64.tmp: $(ALLOBJS) x64/boot.o
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$(HOSTCXX) -nodefaultlibs -nostartfiles -Wl,-N -Wl,-melf_x86_64_sortix -Wl,-Ttext -Wl,100000 -Wl,-z -Wl,max-page-size=0x1000 -o sortix-x64-internal.out x64/boot.o $(OBJS) $(STATICLIBS) end.o
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$(HOSTOBJCOPY) sortix-x64-internal.out -O elf32-i386 sortix-x64.tmp
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# x86 compilation
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sortix-x86.tmp: $(ALLOBJS)
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$(HOSTCXX) -nodefaultlibs -nostartfiles -Wl,-melf_i386_sortix -Wl,-Ttext -Wl,100000 -o $@ $(OBJS) $(STATICLIBS) end.o
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# general rules
sortix.bin: sortix-$(BUILDID).tmp
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cp -vu $< $@
%.o: %.cpp
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$(HOSTCXX) -c $< -o $@ $(CPPFLAGS) $(CXXFLAGS)
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%.o: %.s
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$(HOSTAS) $< -o $@ $(ASFLAGS)
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clean:
for D in $(DIRS); do rm -f $$D/*.o $$D/*.bin $$D/*.out $$D/*.tmp; done
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# Installation into sysroot
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install: install-headers install-kernel
install-include-dirs: headers
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mkdir -p $(INSTALLINCLUDEDIR)
DIRS=$$(echo $(HEADERDIRS) | \
tr ' ' '\n' | \
sed 's/include\/*//'); \
for D in $$DIRS; do \
mkdir -p $(INSTALLINCLUDEDIR)/$$D || exit $?; \
done
install-headers: install-include-dirs headers
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for SRC in $(HEADERS); do \
DEST=`echo $$SRC | sed 's/include\///'`; \
cp -P $$SRC $(INSTALLINCLUDEDIR)/$$DEST || exit $?; \
done
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install-kernel: install-kernel-binary
install-kernel-binary:
mkdir -p $(INSTALLBOOTDIR)/$(HOST)
cp -P sortix.bin $(INSTALLBOOTDIR)/$(HOST)