[gcc r12-28] Fix endian bug in rust demangler

[gcc r12-28] Fix endian bug in rust demangler

[Andreas Schwab]

https://gcc.gnu.org/g:53bc2e123cd44dc26ae3d2c42b85ee2463f2a7c6

commit r12-28-g53bc2e123cd44dc26ae3d2c42b85ee2463f2a7c6
Author: Andreas Schwab <schwab@linux-m68k.org>
Date:   Tue Apr 20 17:30:46 2021 +0200

    Fix endian bug in rust demangler
    
    libiberty/
            PR demangler/100177
            * rust-demangle.c (demangle_const_char): Properly print the
            character value.

Diff:
---
 libiberty/rust-demangle.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/libiberty/rust-demangle.c b/libiberty/rust-demangle.c
index 6fd8f6a4db0..449941b56dc 100644
--- a/libiberty/rust-demangle.c
+++ b/libiberty/rust-demangle.c
@@ -1253,9 +1253,12 @@ demangle_const_char (struct rust_demangler *rdm)
   else if (value == '\n')
     PRINT ("\\n");
   else if (value > ' ' && value < '~')
-    /* Rust also considers many non-ASCII codepoints to be printable, but
-       that logic is not easily ported to C. */
-    print_str (rdm, (char *) &value, 1);
+    {
+      /* Rust also considers many non-ASCII codepoints to be printable, but
+	 that logic is not easily ported to C. */
+      char c = value;
+      print_str (rdm, &c, 1);
+    }
   else
     {
       PRINT ("\\u{");