diff --git a/src/lib.rs b/src/lib.rs
index 171591ebf55d4..8c4f6b1d34465 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -115,6 +115,12 @@ cfg_if! {
 
         mod switch;
         pub use switch::*;
+    } else if #[cfg(target_os = "psp")] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
+        mod psp;
+        pub use psp::*;
     } else if #[cfg(target_os = "vxworks")] {
         mod fixed_width_ints;
         pub use fixed_width_ints::*;
diff --git a/src/psp.rs b/src/psp.rs
new file mode 100644
index 0000000000000..4b3ec9bd94486
--- /dev/null
+++ b/src/psp.rs
@@ -0,0 +1,47 @@
+//! PSP C type definitions
+
+pub type c_schar = i8;
+pub type c_uchar = u8;
+pub type c_short = i16;
+pub type c_ushort = u16;
+pub type c_int = i32;
+pub type c_uint = u32;
+pub type c_float = f32;
+pub type c_double = f64;
+pub type c_longlong = i64;
+pub type c_ulonglong = u64;
+pub type intmax_t = i64;
+pub type uintmax_t = u64;
+
+pub type size_t = usize;
+pub type ptrdiff_t = isize;
+pub type intptr_t = isize;
+pub type uintptr_t = usize;
+pub type ssize_t = isize;
+
+pub type c_char = u8;
+pub type c_long = i64;
+pub type c_ulong = u64;
+
+pub const INT_MIN: c_int = -2147483648;
+pub const INT_MAX: c_int = 2147483647;
+
+cfg_if! {
+    if #[cfg(libc_core_cvoid)] {
+        pub use ::ffi::c_void;
+    } else {
+        // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help
+        // enable more optimization opportunities around it recognizing things
+        // like malloc/free.
+        #[repr(u8)]
+        #[allow(missing_copy_implementations)]
+        #[allow(missing_debug_implementations)]
+        pub enum c_void {
+            // Two dummy variants so the #[repr] attribute can be used.
+            #[doc(hidden)]
+            __variant1,
+            #[doc(hidden)]
+            __variant2,
+        }
+    }
+}