reorganization: first steps

1 files changed, 43 insertions, 0 deletions

diff --git a/src/bootstrap/main.c b/src/bootstrap/main.c
new file mode 100644
index 0000000..d27da39
--- /dev/null
+++ b/src/bootstrap/main.c
@@ -0,0 +1,43 @@
+#include <_proc.h>
+#include <camellia/flags.h>
+#include <camellia/syscalls.h>
+#include <stdio.h>
+#include <string.h>
+#include <elfload.h>
+#include <camellia/fs/misc.h>
+
+#include "tar.h"
+
+extern char _bss_start;
+extern char _bss_end;
+extern char _initrd;
+
+__attribute__((section(".text")))
+int main(void) {
+	_sys_memflag(_psdata_loc, 1, MEMFLAG_PRESENT);
+	setprogname("bootstrap");
+
+	_sys_mount(HANDLE_PROCFS, "/proc/", strlen("/proc/"));
+	MOUNT_AT("/") {
+		fs_dirinject2((const char*[]) {
+			"/proc/",
+			"/init/",
+			NULL
+		});
+	}
+	MOUNT_AT("/init/") {
+		tar_driver(&_initrd);
+	}
+
+	const char *initpath = "bin/amd64/init";
+	char *initargv[] = {"init", NULL};
+	void *init = tar_find(initpath, strlen(initpath), &_initrd, ~0) + 512;
+	if (init) {
+		_klogf("execing init");
+		elf_exec(init, initargv, NULL);
+		_klogf("elf_exec failed");
+	} else {
+		_klogf("couldn't find init.elf");
+	}
+	_sys_exit(1);
+}