OrionUserland
Barry Importing existing Orion Userland 19aefaa (3 years, 3 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 */
+ }
+}