lib: Add mlibc

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

49 files changed, 333 insertions, 0 deletions

diff --git a/lib/mlibc/sysdeps/hyra/crt-x86_64/crt0.S b/lib/mlibc/sysdeps/hyra/crt-x86_64/crt0.S
new file mode 100644
index 0000000..57f0dd1
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/crt-x86_64/crt0.S
@@ -0,0 +1,9 @@
+.section .text
+
+.global _start
+_start:
+    mov $main, %rdi
+    call __mlibc_entry
+
+.size _start, . - _start
+.section .note.GNU-stack,"",%progbits
diff --git a/lib/mlibc/sysdeps/hyra/generic/entry.cpp b/lib/mlibc/sysdeps/hyra/generic/entry.cpp
new file mode 100644
index 0000000..d5129af
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/generic/entry.cpp
@@ -0,0 +1,35 @@
+#include <bits/ensure.h>
+#include <mlibc/elf/startup.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+// defined by the POSIX library
+void __mlibc_initLocale();
+
+extern "C" uintptr_t *__dlapi_entrystack();
+
+extern char **environ;
+static mlibc::exec_stack_data __mlibc_stack_data;
+
+struct LibraryGuard {
+    LibraryGuard();
+};
+
+static LibraryGuard guard;
+
+LibraryGuard::LibraryGuard() {
+    __mlibc_initLocale();
+
+    // Parse the exec() stack.
+    mlibc::parse_exec_stack(__dlapi_entrystack(), &__mlibc_stack_data);
+    mlibc::set_startup_data(__mlibc_stack_data.argc, __mlibc_stack_data.argv,
+                            __mlibc_stack_data.envp);
+}
+
+extern "C" void __mlibc_entry(int (*main_fn)(int argc, char *argv[],
+                                             char *env[])) {
+    // TODO: call __dlapi_enter, otherwise static builds will break (see Linux
+    // sysdeps)
+    auto result = main_fn(__mlibc_stack_data.argc, __mlibc_stack_data.argv, environ);
+    exit(result);
+}
diff --git a/lib/mlibc/sysdeps/hyra/generic/hyra.cpp b/lib/mlibc/sysdeps/hyra/generic/hyra.cpp
new file mode 100644
index 0000000..fb555b9
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/generic/hyra.cpp
@@ -0,0 +1,121 @@
+#include <stddef.h>
+#include <sys/types.h>
+#include <hyra/syscall.h>
+
+namespace mlibc {
+void sys_libc_log(const char *msg) {
+    __syscall(0, (uintptr_t)msg);
+}
+
+int sys_anon_allocate(size_t size, void **pointer) {
+    (void)size;
+    (void)pointer;
+    while (1);
+}
+
+void sys_libc_panic() {
+    sys_libc_log("\n** MLIBC PANIC **\n");
+    while (1);
+}
+
+int sys_tcb_set(void *pointer) {
+    (void)pointer;
+
+    while (1);
+}
+
+void sys_exit(int status) {
+}
+
+void sys_seek(int fd, off_t offset, int whence, off_t *new_offset) {
+    (void)fd;
+    (void)offset;
+    (void)whence;
+    (void)new_offset;
+
+    while (1);
+}
+
+int sys_vm_map(void *hint, size_t size, int prot, int flags, int fd,
+               off_t offset, void **window) {
+    (void)hint;
+    (void)size;
+    (void)prot;
+    (void)flags;
+    (void)fd;
+    (void)offset;
+    (void)window;
+
+    while (1);
+}
+
+int sys_vm_unmap(void *address, size_t size) {
+    (void)address;
+    (void)size;
+
+    while (1);
+}
+
+int sys_anon_free(void *pointer, size_t size) {
+    (void)pointer;
+    (void)size;
+
+    while (1);
+}
+
+int sys_clock_get(int clock, time_t *secs, long *nanos) {
+    (void)clock;
+    (void)secs;
+    (void)nanos;
+
+    while (1);
+}
+
+int sys_futex_wait(int *pointer, int expected, const struct timespec *time) {
+    (void)pointer;
+    (void)expected;
+    (void)time;
+
+    return 0;
+}
+
+int sys_futex_wake(int *pointer) {
+    (void)pointer;
+
+    return 0;
+}
+
+int sys_open(const char *filename, int flags, mode_t mode, int *fd) {
+    (void)filename;
+    (void)flags;
+    (void)mode;
+    (void)fd;
+
+    while (1);
+}
+
+int sys_read(int fd, void *buf, size_t count, ssize_t *bytes_read) {
+    (void)fd;
+    (void)buf;
+    (void)count;
+    (void)bytes_read;
+
+    while (1);
+}
+
+int sys_write(int fd, const void *buffer, size_t count, ssize_t *written) {
+    (void)fd;
+    (void)buffer;
+    (void)count;
+    (void)written;
+
+    while (1);
+}
+
+int sys_close(int fd) {
+    (void)fd;
+
+    while (1);
+}
+
+}
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/access.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/access.h
new file mode 120000
index 0000000..cb83931
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/access.h
@@ -0,0 +1 @@
+../../../../abis/linux/access.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/auxv.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/auxv.h
new file mode 120000
index 0000000..6959fac
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/auxv.h
@@ -0,0 +1 @@
+../../../../abis/hyra/auxv.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/blkcnt_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/blkcnt_t.h
new file mode 120000
index 0000000..0b0ec27
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/blkcnt_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/blkcnt_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/blksize_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/blksize_t.h
new file mode 120000
index 0000000..7dc8d7c
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/blksize_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/blksize_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/clockid_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/clockid_t.h
new file mode 120000
index 0000000..6a42da5
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/clockid_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/clockid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/dev_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/dev_t.h
new file mode 120000
index 0000000..bca881e
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/dev_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/dev_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/epoll.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/epoll.h
new file mode 120000
index 0000000..eb4b76d
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/epoll.h
@@ -0,0 +1 @@
+../../../../abis/linux/epoll.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/errno.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/errno.h
new file mode 120000
index 0000000..6e507de
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/errno.h
@@ -0,0 +1 @@
+../../../../abis/linux/errno.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/fcntl.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/fcntl.h
new file mode 120000
index 0000000..463e2c9
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/fcntl.h
@@ -0,0 +1 @@
+../../../../abis/linux/fcntl.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/fsblkcnt_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/fsblkcnt_t.h
new file mode 120000
index 0000000..898dfb2
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/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/hyra/include/abi-bits/fsfilcnt_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/fsfilcnt_t.h
new file mode 120000
index 0000000..791755c
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/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/hyra/include/abi-bits/gid_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/gid_t.h
new file mode 120000
index 0000000..abce6d6
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/gid_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/gid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/in.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/in.h
new file mode 120000
index 0000000..418d1d5
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/in.h
@@ -0,0 +1 @@
+../../../../abis/linux/in.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/ino_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/ino_t.h
new file mode 120000
index 0000000..4c20aca
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/ino_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/ino_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/inotify.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/inotify.h
new file mode 120000
index 0000000..b5cb282
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/inotify.h
@@ -0,0 +1 @@
+../../../../abis/linux/inotify.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/ioctls.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/ioctls.h
new file mode 120000
index 0000000..595106b
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/ioctls.h
@@ -0,0 +1 @@
+../../../../abis/linux/ioctls.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/limits.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/limits.h
new file mode 120000
index 0000000..6c88db2
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/limits.h
@@ -0,0 +1 @@
+../../../../abis/linux/limits.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/mode_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/mode_t.h
new file mode 120000
index 0000000..5d78fdf
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/mode_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/mode_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/mqueue.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/mqueue.h
new file mode 120000
index 0000000..fa87b07
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/mqueue.h
@@ -0,0 +1 @@
+../../../../abis/linux/mqueue.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/msg.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/msg.h
new file mode 120000
index 0000000..f402b49
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/msg.h
@@ -0,0 +1 @@
+../../../../abis/linux/msg.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/nlink_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/nlink_t.h
new file mode 120000
index 0000000..bb3b625
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/nlink_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/nlink_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/packet.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/packet.h
new file mode 120000
index 0000000..998ef1a
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/packet.h
@@ -0,0 +1 @@
+../../../../abis/linux/packet.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/pid_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/pid_t.h
new file mode 120000
index 0000000..baa90f6
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/pid_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/pid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/poll.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/poll.h
new file mode 120000
index 0000000..8ea6a0a
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/poll.h
@@ -0,0 +1 @@
+../../../../abis/linux/poll.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/ptrace.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/ptrace.h
new file mode 120000
index 0000000..b2517b2
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/ptrace.h
@@ -0,0 +1 @@
+../../../../abis/linux/ptrace.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/reboot.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/reboot.h
new file mode 120000
index 0000000..77013a4
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/reboot.h
@@ -0,0 +1 @@
+../../../../abis/linux/reboot.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/resource.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/resource.h
new file mode 120000
index 0000000..88d7402
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/resource.h
@@ -0,0 +1 @@
+../../../../abis/linux/resource.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/seek-whence.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/seek-whence.h
new file mode 120000
index 0000000..df7bccf
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/seek-whence.h
@@ -0,0 +1 @@
+../../../../abis/linux/seek-whence.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/shm.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/shm.h
new file mode 120000
index 0000000..067d8c4
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/shm.h
@@ -0,0 +1 @@
+../../../../abis/linux/shm.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/signal.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/signal.h
new file mode 120000
index 0000000..4dcb0b7
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/signal.h
@@ -0,0 +1 @@
+../../../../abis/linux/signal.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/socket.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/socket.h
new file mode 120000
index 0000000..f1dc016
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/socket.h
@@ -0,0 +1 @@
+../../../../abis/linux/socket.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/socklen_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/socklen_t.h
new file mode 120000
index 0000000..41f3b11
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/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/hyra/include/abi-bits/stat.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/stat.h
new file mode 120000
index 0000000..1f63b41
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/stat.h
@@ -0,0 +1 @@
+../../../../abis/linux/stat.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/statfs.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/statfs.h
new file mode 120000
index 0000000..e3d202f
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/statfs.h
@@ -0,0 +1 @@
+../../../../abis/linux/statfs.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/statvfs.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/statvfs.h
new file mode 120000
index 0000000..1fc80c2
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/statvfs.h
@@ -0,0 +1 @@
+../../../../abis/linux/statvfs.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/suseconds_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/suseconds_t.h
new file mode 120000
index 0000000..9ed6597
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/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/hyra/include/abi-bits/termios.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/termios.h
new file mode 120000
index 0000000..ee8f0b0
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/termios.h
@@ -0,0 +1 @@
+../../../../abis/linux/termios.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/time.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/time.h
new file mode 120000
index 0000000..2a02625
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/time.h
@@ -0,0 +1 @@
+../../../../abis/linux/time.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/uid_t.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/uid_t.h
new file mode 120000
index 0000000..b306777
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/uid_t.h
@@ -0,0 +1 @@
+../../../../abis/linux/uid_t.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/utsname.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/utsname.h
new file mode 120000
index 0000000..b285754
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/utsname.h
@@ -0,0 +1 @@
+../../../../abis/linux/utsname.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/vm-flags.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/vm-flags.h
new file mode 120000
index 0000000..bbe258c
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/vm-flags.h
@@ -0,0 +1 @@
+../../../../abis/linux/vm-flags.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/vt.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/vt.h
new file mode 120000
index 0000000..5798a4a
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/vt.h
@@ -0,0 +1 @@
+../../../../abis/linux/vt.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/wait.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/wait.h
new file mode 120000
index 0000000..feb2840
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/wait.h
@@ -0,0 +1 @@
+../../../../abis/linux/wait.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/abi-bits/xattr.h b/lib/mlibc/sysdeps/hyra/include/abi-bits/xattr.h
new file mode 120000
index 0000000..66412d7
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/abi-bits/xattr.h
@@ -0,0 +1 @@
+../../../../abis/linux/xattr.h
\ No newline at end of file
diff --git a/lib/mlibc/sysdeps/hyra/include/hyra/syscall.h b/lib/mlibc/sysdeps/hyra/include/hyra/syscall.h
new file mode 100644
index 0000000..f38a59b
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/include/hyra/syscall.h
@@ -0,0 +1,55 @@
+#ifndef _HYRA_SYSCALL_H_
+#define _HYRA_SYSCALL_H_
+
+#define SYS_debug   0
+#define SYS_exit    1
+
+__attribute__((__always_inline__))
+static inline long syscall0() {
+    volatile long ret;
+    asm volatile("int $0x80" : "=a"(ret));
+    return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long syscall1(uint64_t code, uint64_t arg0) {
+    volatile long ret;
+    asm volatile("int $0x80"
+                  : "=a"(ret)
+                  : "a"(code),
+                    "D"(arg0) : "memory");
+    return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long syscall2(uint64_t code, uint64_t arg0, uint64_t arg1) {
+    volatile long ret;
+    asm volatile("int $0x80"
+                  : "=a"(ret)
+                  : "a"(code),
+                    "D"(arg0),
+                    "S"(arg1)
+                  : "memory");
+    return ret;
+}
+
+__attribute__((__always_inline__))
+static inline long syscall3(uint64_t code, uint64_t arg0, uint64_t arg1, uint64_t arg2) {
+    volatile long ret;
+    asm volatile("int $0x80"
+                  : "=a"(ret)
+                  : "a"(code),
+                    "D"(arg0),
+                    "S"(arg1),
+                    "d"(arg2)
+                  : "memory");
+    return ret;
+}
+
+#define _GET_SYSCALL(a0, a1, a2, a3, name, ...) name
+
+#define __syscall(...) \
+    _GET_SYSCALL(__VA_ARGS__, syscall3, syscall2, syscall1, \
+                              syscall0)(__VA_ARGS__)
+
+#endif  /* !_HYRA_SYSCALL_H_ */
diff --git a/lib/mlibc/sysdeps/hyra/meson.build b/lib/mlibc/sysdeps/hyra/meson.build
new file mode 100644
index 0000000..80136db
--- /dev/null
+++ b/lib/mlibc/sysdeps/hyra/meson.build
@@ -0,0 +1,69 @@
+rtdl_dso_sources += files(
+  'generic/hyra.cpp'
+)
+
+libc_sources += files(
+	'generic/entry.cpp',
+	'generic/hyra.cpp',
+)
+
+if not no_headers
+	install_headers(
+        'include/abi-bits/auxv.h',
+		'include/abi-bits/seek-whence.h',
+		'include/abi-bits/vm-flags.h',
+		'include/abi-bits/errno.h',
+		'include/abi-bits/fcntl.h',
+		'include/abi-bits/in.h',
+		'include/abi-bits/resource.h',
+		'include/abi-bits/signal.h',
+		'include/abi-bits/stat.h',
+		'include/abi-bits/socket.h',
+		'include/abi-bits/termios.h',
+		'include/abi-bits/time.h',
+		'include/abi-bits/blkcnt_t.h',
+		'include/abi-bits/blksize_t.h',
+		'include/abi-bits/dev_t.h',
+		'include/abi-bits/gid_t.h',
+		'include/abi-bits/ino_t.h',
+		'include/abi-bits/mode_t.h',
+		'include/abi-bits/nlink_t.h',
+		'include/abi-bits/pid_t.h',
+		'include/abi-bits/uid_t.h',
+		'include/abi-bits/access.h',
+		'include/abi-bits/wait.h',
+		'include/abi-bits/limits.h',
+		'include/abi-bits/utsname.h',
+		'include/abi-bits/ptrace.h',
+		'include/abi-bits/poll.h',
+		'include/abi-bits/epoll.h',
+		'include/abi-bits/packet.h',
+		'include/abi-bits/inotify.h',
+		'include/abi-bits/clockid_t.h',
+        'include/abi-bits/shm.h',
+        'include/abi-bits/mqueue.h',
+		subdir: 'abi-bits',
+		follow_symlinks: true
+	)
+	install_headers(
+		'include/hyra/syscall.h',
+		subdir: 'hyra'
+	)
+endif
+
+if not headers_only
+	crt = custom_target('crt0',
+		build_by_default: true,
+		command: c_compiler.cmd_array() + ['-c', '-o', '@OUTPUT@', '@INPUT@'],
+		input: 'crt-x86_64/crt0.S',
+		output: 'crt0.o',
+		install: true,
+		install_dir: get_option('libdir')
+	)
+endif
+
+if host_machine.cpu_family() == 'x86_64'
+    # libc_sources += files('generic/signals.S')
+else
+	error('Unknown architecture')
+endif