lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

45 files changed, 285 insertions, 0 deletions

diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/access.h b/lib/mlibc/sysdeps/aero/include/abi-bits/access.h
new file mode 120000
index 0000000..171f75f
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/access.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/access.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/auxv.h b/lib/mlibc/sysdeps/aero/include/abi-bits/auxv.h
new file mode 120000
index 0000000..86157e8
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/auxv.h
@@ -0,0 +1 @@
+../../../../abis/aero/auxv.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/blkcnt_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/blkcnt_t.h
new file mode 120000
index 0000000..e9d9f1b
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/blkcnt_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/blkcnt_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/blksize_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/blksize_t.h
new file mode 120000
index 0000000..c6dfb6e
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/blksize_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/blksize_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/clockid_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/clockid_t.h
new file mode 120000
index 0000000..71f37bb
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/clockid_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/clockid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/dev_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/dev_t.h
new file mode 120000
index 0000000..0c1143b
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/dev_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/dev_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/epoll.h b/lib/mlibc/sysdeps/aero/include/abi-bits/epoll.h
new file mode 120000
index 0000000..9efc3a0
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/epoll.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/epoll.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/errno.h b/lib/mlibc/sysdeps/aero/include/abi-bits/errno.h
new file mode 120000
index 0000000..589859f
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/errno.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/errno.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/fcntl.h b/lib/mlibc/sysdeps/aero/include/abi-bits/fcntl.h
new file mode 120000
index 0000000..ea5323a
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/fcntl.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/fcntl.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/fsblkcnt_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/fsblkcnt_t.h
new file mode 120000
index 0000000..898dfb2
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/fsblkcnt_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/fsblkcnt_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/fsfilcnt_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/fsfilcnt_t.h
new file mode 120000
index 0000000..791755c
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/fsfilcnt_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/fsfilcnt_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/gid_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/gid_t.h
new file mode 120000
index 0000000..6a77218
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/gid_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/gid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/in.h b/lib/mlibc/sysdeps/aero/include/abi-bits/in.h
new file mode 120000
index 0000000..b58c683
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/in.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/in.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/ino_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/ino_t.h
new file mode 120000
index 0000000..10d644e
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/ino_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/ino_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/inotify.h b/lib/mlibc/sysdeps/aero/include/abi-bits/inotify.h
new file mode 120000
index 0000000..3f19ef6
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/inotify.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/inotify.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/ioctls.h b/lib/mlibc/sysdeps/aero/include/abi-bits/ioctls.h
new file mode 120000
index 0000000..595106b
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/ioctls.h
@@ -0,0 +1 @@
+../../../../abis/linux/ioctls.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/limits.h b/lib/mlibc/sysdeps/aero/include/abi-bits/limits.h
new file mode 120000
index 0000000..1aa5894
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/limits.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/limits.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/mode_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/mode_t.h
new file mode 120000
index 0000000..29d7733
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/mode_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/mode_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/mqueue.h b/lib/mlibc/sysdeps/aero/include/abi-bits/mqueue.h
new file mode 120000
index 0000000..fa87b07
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/mqueue.h
@@ -0,0 +1 @@
+../../../../abis/linux/mqueue.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/msg.h b/lib/mlibc/sysdeps/aero/include/abi-bits/msg.h
new file mode 120000
index 0000000..f402b49
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/msg.h
@@ -0,0 +1 @@
+../../../../abis/linux/msg.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/nlink_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/nlink_t.h
new file mode 120000
index 0000000..7618c27
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/nlink_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/nlink_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/packet.h b/lib/mlibc/sysdeps/aero/include/abi-bits/packet.h
new file mode 120000
index 0000000..47067e2
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/packet.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/packet.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/pid_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/pid_t.h
new file mode 120000
index 0000000..3fd26a7
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/pid_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/pid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/poll.h b/lib/mlibc/sysdeps/aero/include/abi-bits/poll.h
new file mode 120000
index 0000000..ab989c7
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/poll.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/poll.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/ptrace.h b/lib/mlibc/sysdeps/aero/include/abi-bits/ptrace.h
new file mode 120000
index 0000000..f391fb7
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/ptrace.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/ptrace.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/reboot.h b/lib/mlibc/sysdeps/aero/include/abi-bits/reboot.h
new file mode 120000
index 0000000..77013a4
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/reboot.h
@@ -0,0 +1 @@
+../../../../abis/linux/reboot.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/resource.h b/lib/mlibc/sysdeps/aero/include/abi-bits/resource.h
new file mode 120000
index 0000000..3e59c75
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/resource.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/resource.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/seek-whence.h b/lib/mlibc/sysdeps/aero/include/abi-bits/seek-whence.h
new file mode 120000
index 0000000..3bd41ef
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/seek-whence.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/seek-whence.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/shm.h b/lib/mlibc/sysdeps/aero/include/abi-bits/shm.h
new file mode 120000
index 0000000..067d8c4
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/shm.h
@@ -0,0 +1 @@
+../../../../abis/linux/shm.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/signal.h b/lib/mlibc/sysdeps/aero/include/abi-bits/signal.h
new file mode 120000
index 0000000..4dcb0b7
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/signal.h
@@ -0,0 +1 @@
+../../../../abis/linux/signal.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/socket.h b/lib/mlibc/sysdeps/aero/include/abi-bits/socket.h
new file mode 120000
index 0000000..0e1d6be
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/socket.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/socket.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/socklen_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/socklen_t.h
new file mode 120000
index 0000000..41f3b11
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/socklen_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/socklen_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/stat.h b/lib/mlibc/sysdeps/aero/include/abi-bits/stat.h
new file mode 120000
index 0000000..82642c3
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/stat.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/stat.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/statfs.h b/lib/mlibc/sysdeps/aero/include/abi-bits/statfs.h
new file mode 120000
index 0000000..e3d202f
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/statfs.h
@@ -0,0 +1 @@
+../../../../abis/linux/statfs.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/statvfs.h b/lib/mlibc/sysdeps/aero/include/abi-bits/statvfs.h
new file mode 120000
index 0000000..1fc80c2
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/statvfs.h
@@ -0,0 +1 @@
+../../../../abis/linux/statvfs.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/suseconds_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/suseconds_t.h
new file mode 120000
index 0000000..9ed6597
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/suseconds_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/suseconds_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/termios.h b/lib/mlibc/sysdeps/aero/include/abi-bits/termios.h
new file mode 120000
index 0000000..ee8f0b0
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/termios.h
@@ -0,0 +1 @@
+../../../../abis/linux/termios.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/time.h b/lib/mlibc/sysdeps/aero/include/abi-bits/time.h
new file mode 120000
index 0000000..97f3d52
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/time.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/time.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/uid_t.h b/lib/mlibc/sysdeps/aero/include/abi-bits/uid_t.h
new file mode 120000
index 0000000..1113eba
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/uid_t.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/uid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/utsname.h b/lib/mlibc/sysdeps/aero/include/abi-bits/utsname.h
new file mode 120000
index 0000000..b285754
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/utsname.h
@@ -0,0 +1 @@
+../../../../abis/linux/utsname.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/vm-flags.h b/lib/mlibc/sysdeps/aero/include/abi-bits/vm-flags.h
new file mode 120000
index 0000000..f1a985e
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/vm-flags.h
@@ -0,0 +1 @@
+../../../../abis/mlibc/vm-flags.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/wait.h b/lib/mlibc/sysdeps/aero/include/abi-bits/wait.h
new file mode 120000
index 0000000..feb2840
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/linux/wait.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/abi-bits/xattr.h b/lib/mlibc/sysdeps/aero/include/abi-bits/xattr.h
new file mode 120000
index 0000000..66412d7
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/abi-bits/xattr.h
@@ -0,0 +1 @@
+../../../../abis/linux/xattr.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/aero/include/aero/syscall.h b/lib/mlibc/sysdeps/aero/include/aero/syscall.h
new file mode 100644
index 0000000..3f36e4d
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/aero/syscall.h
@@ -0,0 +1,231 @@
+#ifndef SYSCALL_H
+#define SYSCALL_H
+
+#include <bits/ensure.h>
+#include <stdint.h>
+
+#define SYS_READ 0
+#define SYS_WRITE 1
+#define SYS_OPEN 2
+#define SYS_CLOSE 3
+#define SYS_SHUTDOWN 4
+#define SYS_EXIT 5
+#define SYS_FORK 6
+#define SYS_REBOOT 7
+#define SYS_MMAP 8
+#define SYS_MUNMAP 9
+#define SYS_ARCH_PRCTL 10
+#define SYS_GETDENTS 11
+#define SYS_GETCWD 12
+#define SYS_CHDIR 13
+#define SYS_MKDIR 14
+#define SYS_MKDIR_AT 15
+#define SYS_RMDIR 16
+#define SYS_EXEC 17
+#define SYS_LOG 18
+#define SYS_UNAME 19
+#define SYS_WAITPID 20
+#define SYS_IOCTL 21
+#define SYS_GETPID 22
+#define SYS_SOCKET 23
+#define SYS_CONNECT 24
+#define SYS_BIND 25
+#define SYS_LISTEN 26
+#define SYS_ACCEPT 27
+#define SYS_SEEK 28
+#define SYS_GETTID 29
+#define SYS_GETTIME 30
+#define SYS_SLEEP 31
+#define SYS_ACCESS 32
+#define SYS_PIPE 33
+#define SYS_UNLINK 34
+#define SYS_GETHOSTNAME 35
+#define SYS_SETHOSTNAME 36
+#define SYS_INFO 37
+#define SYS_CLONE 38
+#define SYS_SIGRETURN 39
+#define SYS_SIGACTION 40
+#define SYS_SIGPROCMASK 41
+#define SYS_DUP 42
+#define SYS_FCNTL 43
+#define SYS_DUP2 44
+#define SYS_IPC_SEND 45
+#define SYS_IPC_RECV 46
+#define SYS_DISCOVER_ROOT 47
+#define SYS_BECOME_ROOT 48
+#define SYS_STAT 49
+#define SYS_FSTAT 50
+#define SYS_READ_LINK 51
+#define SYS_EPOLL_CREATE 52
+#define SYS_EPOLL_PWAIT 53
+#define SYS_EPOLL_CTL 54
+#define SYS_EVENT_FD 55
+#define SYS_KILL 56
+#define SYS_FUTEX_WAIT 57
+#define SYS_FUTEX_WAKE 58
+#define SYS_LINK 59
+#define SYS_BACKTRACE 60
+#define SYS_POLL 61
+#define SYS_EXIT_THREAD 62
+#define SYS_SOCK_RECV 63
+#define SYS_SETITIMER 64
+#define SYS_GETITIMER 65
+#define SYS_GETPPID 66
+#define SYS_SOCKET_PAIR 67
+#define SYS_RENAME 68
+#define SYS_MPROTECT 69
+#define SYS_SOCK_SEND 70
+#define SYS_TRACE 71
+#define SYS_SETPGID 72
+#define SYS_SETSID 73
+#define SYS_GETPGID 74
+#define SYS_SOCK_SHUTDOWN 75
+
+// Invalid syscall used to trigger a log error in the kernel (as a hint)
+// so, that we can implement the syscall in the kernel.
+#define UNIMPLEMENTED(FUNCTION_NAME)                                           \
+    {                                                                          \
+        sys_libc_log("Unimplemented syscall: " FUNCTION_NAME);                 \
+        sys_exit(1);                                                           \
+        __builtin_unreachable();                                               \
+    }
+
+extern "C" {
+using sc_word_t = long;
+
+static sc_word_t syscall0(int sc) {
+    sc_word_t ret;
+    asm volatile("syscall" : "=a"(ret) : "a"(sc) : "rcx", "r11", "memory");
+    return ret;
+}
+
+static sc_word_t syscall1(int sc, sc_word_t arg1) {
+    sc_word_t ret;
+    asm volatile("syscall"
+                 : "=a"(ret)
+                 : "a"(sc), "D"(arg1)
+                 : "rcx", "r11", "memory");
+    return ret;
+}
+
+static sc_word_t syscall2(int sc, sc_word_t arg1, sc_word_t arg2) {
+    sc_word_t ret;
+    asm volatile("syscall"
+                 : "=a"(ret)
+                 : "a"(sc), "D"(arg1), "S"(arg2)
+                 : "rcx", "r11", "memory");
+    return ret;
+}
+
+static sc_word_t syscall3(int sc, sc_word_t arg1, sc_word_t arg2,
+                          sc_word_t arg3) {
+    sc_word_t ret;
+    asm volatile("syscall"
+                 : "=a"(ret)
+                 : "a"(sc), "D"(arg1), "S"(arg2), "d"(arg3)
+                 : "rcx", "r11", "memory");
+    return ret;
+}
+
+static sc_word_t syscall4(int sc, sc_word_t arg1, sc_word_t arg2,
+                          sc_word_t arg3, sc_word_t arg4) {
+    sc_word_t ret;
+
+    register sc_word_t arg4_reg asm("r10") = arg4;
+
+    asm volatile("syscall"
+                 : "=a"(ret)
+                 : "a"(sc), "D"(arg1), "S"(arg2), "d"(arg3), "r"(arg4_reg)
+                 : "rcx", "r11", "memory");
+    return ret;
+}
+
+static sc_word_t syscall5(int sc, sc_word_t arg1, sc_word_t arg2,
+                          sc_word_t arg3, sc_word_t arg4, sc_word_t arg5) {
+    sc_word_t ret;
+
+    register sc_word_t arg4_reg asm("r10") = arg4;
+    register sc_word_t arg5_reg asm("r8") = arg5;
+
+    asm volatile("syscall"
+                 : "=a"(ret)
+                 : "a"(sc), "D"(arg1), "S"(arg2), "d"(arg3), "r"(arg4_reg),
+                   "r"(arg5_reg)
+                 : "rcx", "r11", "memory");
+    return ret;
+}
+
+static sc_word_t syscall6(int sc, sc_word_t arg1, sc_word_t arg2,
+                          sc_word_t arg3, sc_word_t arg4, sc_word_t arg5,
+                          sc_word_t arg6) {
+    sc_word_t ret;
+
+    register sc_word_t arg4_reg asm("r10") = arg4;
+    register sc_word_t arg5_reg asm("r8") = arg5;
+    register sc_word_t arg6_reg asm("r9") = arg6;
+
+    asm volatile("syscall"
+                 : "=a"(ret)
+                 : "a"(sc), "D"(arg1), "S"(arg2), "d"(arg3), "r"(arg4_reg),
+                   "r"(arg5_reg), "r"(arg6_reg)
+                 : "rcx", "r11", "memory");
+    return ret;
+}
+} // extern "C"
+
+// Cast to the argument type of the extern "C" functions.
+__attribute__((__always_inline__)) inline sc_word_t sc_cast(long x) { return x; }
+__attribute__((__always_inline__)) inline sc_word_t sc_cast(const void *x) {
+    return reinterpret_cast<sc_word_t>(x);
+}
+
+// C++ wrappers for the extern "C" functions.
+__attribute__((__always_inline__)) static inline long _syscall(int call) {
+    return syscall0(call);
+}
+
+__attribute__((__always_inline__)) static inline long _syscall(int call,
+                                                           sc_word_t arg0) {
+    return syscall1(call, arg0);
+}
+
+__attribute__((__always_inline__)) static inline long
+_syscall(int call, sc_word_t arg0, sc_word_t arg1) {
+    return syscall2(call, arg0, arg1);
+}
+
+__attribute__((__always_inline__)) static inline long
+_syscall(int call, sc_word_t arg0, sc_word_t arg1, sc_word_t arg2) {
+    return syscall3(call, arg0, arg1, arg2);
+}
+
+__attribute__((__always_inline__)) static inline long
+_syscall(int call, sc_word_t arg0, sc_word_t arg1, sc_word_t arg2,
+         sc_word_t arg3) {
+    return syscall4(call, arg0, arg1, arg2, arg3);
+}
+
+__attribute__((__always_inline__)) static inline long
+_syscall(int call, sc_word_t arg0, sc_word_t arg1, sc_word_t arg2,
+         sc_word_t arg3, sc_word_t arg4) {
+    return syscall5(call, arg0, arg1, arg2, arg3, arg4);
+}
+
+__attribute__((__always_inline__)) static inline long
+_syscall(int call, sc_word_t arg0, sc_word_t arg1, sc_word_t arg2,
+         sc_word_t arg3, sc_word_t arg4, sc_word_t arg5) {
+    return syscall6(call, arg0, arg1, arg2, arg3, arg4, arg5);
+}
+
+template <typename... T>
+__attribute__((__always_inline__)) static inline long syscall(sc_word_t call,
+                                                          T... args) {
+    return _syscall(call, sc_cast(args)...);
+}
+
+inline int sc_error(long ret) {
+    if (ret < 0)
+        return -ret;
+    return 0;
+}
+#endif // SYSCALL_H
diff --git a/lib/mlibc/sysdeps/aero/include/mlibc/thread-entry.hpp b/lib/mlibc/sysdeps/aero/include/mlibc/thread-entry.hpp
new file mode 100644
index 0000000..a241479
--- /dev/null
+++ b/lib/mlibc/sysdeps/aero/include/mlibc/thread-entry.hpp
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <mlibc/tcb.hpp>
+
+extern "C" void __mlibc_start_thread(void);
+extern "C" void __mlibc_enter_thread(void *entry, void *user_arg, Tcb *tcb);
+
+namespace mlibc {
+int prepare_stack(void **stack, void *entry, void *user_arg, void *tcb, size_t *stack_size,
+		size_t *guard_size);
+} // namespace mlibc