Merge "Let bionic use the correct definition of ssize_t."

libc/include/sys/types.h

@@ -85,17 +85,13 @@ typedef  .... pthread_t;
 
 #ifndef _SSIZE_T_DEFINED_
 #define _SSIZE_T_DEFINED_
-/* Traditionally, bionic's ssize_t was "long int". This causes GCC to emit warnings when you
+/* Traditionally, bionic's ssize_t was "long int". This caused GCC to emit warnings when you
  * pass a ssize_t to a printf-style function. The correct type is __kernel_ssize_t, which is
  * "int", which isn't an ABI change for C code (because they're the same size) but is an ABI
  * change for C++ because "int" and "long int" mangle to "i" and "l" respectively. So until
- * we can fix the ABI, this is the best we can do. http://b/8253769. */
-#if defined(__cplusplus)
-typedef long int  ssize_t;
-#else
+ * we can fix the ABI, this change should not be propagated to the NDK. http://b/8253769. */
 typedef __kernel_ssize_t ssize_t;
 #endif
-#endif
 
 typedef __kernel_suseconds_t  suseconds_t;
 typedef __kernel_time_t       time_t;

tests/stdio_test.cpp

@@ -171,19 +171,15 @@ TEST(stdio, getline_invalid) {
 }
 
 TEST(stdio, printf_ssize_t) {
-#if __BIONIC__
   // http://b/8253769
-  ASSERT_EQ(sizeof(__kernel_ssize_t), sizeof(long int));
   ASSERT_EQ(sizeof(ssize_t), sizeof(long int));
-#else
-  // TODO: add a .c file so we can test this for bionic --- our C ssize_t is fine.
-  // For our 32-bit C++ ABI, we have a ssize_t definition that confuses GCC into saying:
+  ASSERT_EQ(sizeof(ssize_t), sizeof(size_t));
+  // For our 32-bit ABI, we had a ssize_t definition that confuses GCC into saying:
   // error: format '%zd' expects argument of type 'signed size_t',
   //     but argument 4 has type 'ssize_t {aka long int}' [-Werror=format]
   ssize_t v = 1;
   char buf[32];
   snprintf(buf, sizeof(buf), "%zd", v);
-#endif
 }
 
 TEST(stdio, popen) {