linux: riscv32: Add support for the 64-bit time_t RV32 glibc port

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

Author: alistair23

src/unix/linux_like/linux/align.rs

@@ -8,7 +8,8 @@ macro_rules! expand_align {
                            target_arch = "s390x",
                            target_arch = "sparc64",
                            target_arch = "aarch64",
-                           target_arch = "riscv64"),
+                           target_arch = "riscv64",
+                           target_arch = "riscv32"),
                        repr(align(4)))]
             #[cfg_attr(not(any(target_pointer_width = "32",
                                target_arch = "x86_64",
@@ -17,7 +18,8 @@ macro_rules! expand_align {
                                target_arch = "s390x",
                                target_arch = "sparc64",
                                target_arch = "aarch64",
-                               target_arch = "riscv64")),
+                               target_arch = "riscv64",
+                               target_arch = "riscv32")),
                        repr(align(8)))]
             pub struct pthread_mutexattr_t {
                 #[doc(hidden)]

src/unix/linux_like/linux/gnu/b32/mod.rs

@@ -278,6 +278,9 @@ cfg_if! {
     } else if #[cfg(target_arch = "sparc")] {
         mod sparc;
         pub use self::sparc::*;
+    } else if #[cfg(any(target_arch = "riscv32"))] {
+        mod riscv32;
+        pub use self::riscv32::*;
     } else {
         // Unknown target_arch
     }