Rollup merge of rust-lang#128859 - MinxuanZ:mips-sig, r=Amanieu

Fix the name of signal 19 in library/std/src/sys/pal/unix/process/process_unix/tests.rs for mips/sparc linux

relate to rust-lang#128816

library/std/src/sys/pal/unix/process/process_unix/tests.rs

@@ -24,7 +24,20 @@ fn exitstatus_display_tests() {
     // The purpose of this test is to test our string formatting, not our understanding of the wait
     // status magic numbers. So restrict these to Linux.
     if cfg!(target_os = "linux") {
+        #[cfg(any(target_arch = "mips", target_arch = "mips64"))]
+        t(0x0137f, "stopped (not terminated) by signal: 19 (SIGPWR)");
+
+        #[cfg(any(target_arch = "sparc", target_arch = "sparc64"))]
+        t(0x0137f, "stopped (not terminated) by signal: 19 (SIGCONT)");
+
+        #[cfg(not(any(
+            target_arch = "mips",
+            target_arch = "mips64",
+            target_arch = "sparc",
+            target_arch = "sparc64"
+        )))]
         t(0x0137f, "stopped (not terminated) by signal: 19 (SIGSTOP)");
+
         t(0x0ffff, "continued (WIFCONTINUED)");
     }