objtool/rust: relax slice condition to cover more noreturn Rust functions

Developers are indeed hitting other of the `noreturn` slice symbols in
Nova [1], thus relax the last check in the list so that we catch all of
them, i.e.

    *_4core5slice5index22slice_index_order_fail
    *_4core5slice5index24slice_end_index_len_fail
    *_4core5slice5index26slice_start_index_len_fail
    *_4core5slice5index29slice_end_index_overflow_fail
    *_4core5slice5index31slice_start_index_overflow_fail

These all exist since at least Rust 1.78.0, thus backport it too.

See commit 56d680d ("objtool/rust: list `noreturn` Rust functions")
for more details.

Cc: [email protected] # Needed in 6.12.y and later.
Cc: John Hubbard <[email protected]>
Cc: Timur Tabi <[email protected]>
Cc: Kane York <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Reported-by: Joel Fernandes <[email protected]>
Fixes: 56d680d ("objtool/rust: list `noreturn` Rust functions")
Closes: https://lore.kernel.org/rust-for-linux/20250513180757.GA1295002@joelnvbox/ [1]
Tested-by: Joel Fernandes <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Miguel Ojeda <[email protected]>

Author: ojeda

tools/objtool/check.c

@@ -230,7 +230,8 @@ static bool is_rust_noreturn(const struct symbol *func)
 	       str_ends_with(func->name, "_7___rustc17rust_begin_unwind")				||
 	       strstr(func->name, "_4core9panicking13assert_failed")					||
 	       strstr(func->name, "_4core9panicking11panic_const24panic_const_")			||
-	       (strstr(func->name, "_4core5slice5index24slice_") &&
+	       (strstr(func->name, "_4core5slice5index") &&
+		strstr(func->name, "slice_") &&
 		str_ends_with(func->name, "_fail"));
 }