commit fa5410fdb7664e4561f5adcee406b1913f520d77
author George Burgess IV <gbiv@google.com> Mon Aug 13 17:44:06 2018 -0700
committer George Burgess IV <gbiv@google.com> Wed Aug 15 10:11:08 2018 -0700
tree 4dc35e592835307b61e88534a7a054dc90cf0759
parent a7573441c1274bbdb3fc992d068ebf97b30a0208

libc: enable -Wimplicit-fallthrough

libc had some -Wimplicit-fallthrough warnings. They all seem to be
benign. We're trying to enable this flag globally, so we need to
annotate these breaks here.

Bug: 112564944
Test: Builds
Change-Id: I5afae694cc4cf26ad1a61e2c8ae91f00cda7c733

libc/stdio/printf_common.h

diff --git a/libc/stdio/printf_common.h b/libc/stdio/printf_common.h
index 9b7c329..ad4fe35 100644
--- a/libc/stdio/printf_common.h
+++ b/libc/stdio/printf_common.h
@@ -48,6 +48,8 @@
 #include <unistd.h>
 #include <wchar.h>
 
+#include <private/bionic_macros.h>
+
 #include "fvwrite.h"
 #include "gdtoa.h"
 #include "local.h"
@@ -472,7 +474,7 @@
         goto rflag;
       case 'C':
         flags |= LONGINT;
-        /*FALLTHROUGH*/
+        __BIONIC_FALLTHROUGH;
       case 'c':
         if (flags & LONGINT)
           ADDTYPE(T_WINT);
@@ -481,7 +483,7 @@
         break;
       case 'D':
         flags |= LONGINT;
-        /*FALLTHROUGH*/
+        __BIONIC_FALLTHROUGH;
       case 'd':
       case 'i':
         ADDSARG();
@@ -503,7 +505,7 @@
         __fortify_fatal("%%n not allowed on Android");
       case 'O':
         flags |= LONGINT;
-        /*FALLTHROUGH*/
+        __BIONIC_FALLTHROUGH;
       case 'o':
         ADDUARG();
         break;
@@ -512,13 +514,13 @@
         break;
       case 'S':
         flags |= LONGINT;
-        /*FALLTHROUGH*/
+        __BIONIC_FALLTHROUGH;
       case 's':
         ADDTYPE((flags & LONGINT) ? TP_WCHAR : TP_CHAR);
         break;
       case 'U':
         flags |= LONGINT;
-        /*FALLTHROUGH*/
+        __BIONIC_FALLTHROUGH;
       case 'u':
       case 'X':
       case 'x':