user_bootstrap: link against user/lib

I have no idea why I didn't do this right from the start, it makes
this whole thing much easier.

1 files changed, 7 insertions, 9 deletions

diff --git a/src/user_bootstrap/main.c b/src/user_bootstrap/main.c
index 52d7058..8fed3ce 100644
--- a/src/user_bootstrap/main.c
+++ b/src/user_bootstrap/main.c
@@ -1,19 +1,12 @@
 #include <shared/flags.h>
 #include <shared/mem.h>
 #include <shared/syscalls.h>
-#include <user_bootstrap/elfload.h>
+#include <user/lib/elfload.h>
 
 extern char _bss_start;
 extern char _bss_end;
 extern char _initrd;
 
-/* libc stubs */
-int printf(const char *fmt, ...) {(void)fmt; return 0;}
-void *malloc(size_t size) {(void)size; _syscall_exit(1);}
-void free(void *ptr) {(void)ptr;}
-int file_read(libc_file *f, char *buf, size_t len) {(void)f; (void)buf; (void)len; _syscall_exit(1);}
-
-
 static void *tar_find(void *tar, const char *path);
 static int oct_parse(char *str, size_t len);
 
@@ -26,6 +19,7 @@ static void *tar_find(void *tar, const char *path) {
 		if (0 != memcmp(tar + off + 257, "ustar", 5))
 			return NULL; // not a metadata sector, end of archive
 
+		_klogf("%s", tar + off);
 		size = oct_parse(tar + off + 124, 11);
 		if (0 == memcmp(tar + off, path, path_len) &&
 				*(char*)(tar + off + path_len) == '\0')
@@ -52,12 +46,16 @@ int main(void) {
 	_syscall_memflag(&_bss_start, &_bss_end - &_bss_start, MEMFLAG_PRESENT);
 
 	void *init = tar_find(&_initrd, "init.elf");
+	if (!init) {
+		_klogf("couldn't find init.elf\n");
+		_syscall_exit(0);
+	}
 	void (*entry)(void*) = elf_partialexec(init);
 	if (entry) {
 		// TODO dynamically link initrd
 		entry(&_initrd);
 	} else {
-		_syscall_debug_klog("bootstrap failed", sizeof("bootstrap failed"));
+		_klogf("couldn't execute init.elf\n");
 	}
 	_syscall_exit(0);
 }