[Bug general/21011] "may be used uninitialized" error with -Werror=maybe-uninitialized

[luizluca at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21011

--- Comment #1 from Luiz Angelo Daros de Luca <luizluca at gmail dot com> ---
Another case:

i386_disasm.c: In function 'i386_disasm':
/home/luizluca/prog-local/lede/trunk/staging_dir/toolchain-mipsel_24kc_gcc-5.4.0_musl-1.1.15/include/fortify/string.h:47:24:
error: 'str' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
      (__s < __d && __s + __n > __d))

i386_disasm.c:709:17: note: 'str' was declared here
     const char *str;


This is because of missing:

--- a/libcpu/i386_disasm.c
+++ b/libcpu/i386_disasm.c
@@ -822,6 +822,7 @@ i386_disasm (Ebl *ebl __attribute__((unu
              /* Fallthrough */
            default:
              assert (! "INVALID not handled");
+             str = "";
            }
            }
          else

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