OrionUserland
Barry Importing existing Orion Userland 19aefaa (2 years, 4 months ago)diff --git a/init/Makefile b/init/Makefile new file mode 100644 index 0000000..5254c7c --- /dev/null +++ b/init/Makefile @@ -0,0 +1,46 @@ +PRODUCT=$(notdir $(abspath $(CURDIR))) + +CC=i686-orion-gcc +CFLAGS= + +AS=i686-orion-as +AFLAGS= + +LD=i686-orion-gcc +LFLAGS= + +AS_SOURCES := $(shell find . -name '*.S') +OBJS = $(sort $(subst ./,build/,$(subst .S,.o,$(AS_SOURCES)))) + +C_SOURCES := $(shell find . -name '*.c') +OBJS += $(sort $(subst ./,build/,$(subst .c,.o,$(C_SOURCES)))) + +.PHONY: clean all install + +all: $(PRODUCT) + +clean: + @echo "REMOVING OBJECT FILES" + @mkdir -p build + @rm -rf build + @touch $(PRODUCT) + @rm $(PRODUCT) + +install: $(PRODUCT) + @echo "INSTALLING $^" + @mkdir -p ${SYSROOT}/bin/ + @install -Dm 755 $(PRODUCT) -t ${SYSROOT}/bin/ + +$(PRODUCT): $(OBJS) + @echo "LINKING $@" + @$(LD) -o $@ $^ $(LFLAGS) + +build/%.o: %.c + @echo "COMPILING $<" + @mkdir -p $(@D) + @$(CC) -c $< -o $@ $(CFLAGS) + +build/%.o: %.S + @echo "ASSEMBLING $<" + @mkdir -p $(@D) + @$(AS) $< -o $@ $(AFLAGS) diff --git a/init/init b/init/init new file mode 100755 index 0000000..5b641ac Binary files /dev/null and b/init/init differ diff --git a/init/main.c b/init/main.c new file mode 100644 index 0000000..0eb2b3b --- /dev/null +++ b/init/main.c @@ -0,0 +1,42 @@ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <sys/wait.h> + +/* Main function */ +int +main(int argc, char *argv[]) +{ + if (getpid() != 1) { + printf("init will not run except as PID#1"); + abort(); + } + + dbgprintf("Starting init"); + + /* Open standard descriptors */ + open("/dev/tty", O_RDONLY); + open("/dev/tty", O_WRONLY); + dup(1); + + printf("Welcome to \033[1;32mOrion\033[0m!\n"); + + int status; + pid_t child; + while (1) { + child = fork(); + if (!child) { + char *v[] = { "login", NULL }; + int err = execve("/bin/login", v, NULL); + if (err < 0) { + printf("init: %s: ", "/bin/login"); + perror(NULL); + while (1); + } + } else { + waitpid(child, &status, 0); + } + printf("\033[H\033[2J"); /* Clear screen */ + } +}