am 8c41eae6: Merge "Move getusershell/endusershell/setusershell to ndk_cruft.cpp."

* commit '8c41eae6fcdb6cad1f6c46ae01708ead6b734060':
  Move getusershell/endusershell/setusershell to ndk_cruft.cpp.

libc/bionic/ndk_cruft.cpp

@@ -26,8 +26,7 @@
  * SUCH DAMAGE.
  */
 
-// This file perpetuates the mistakes of the past, but only for 32-bit targets.
-#if !defined(__LP64__)
+// This file perpetuates the mistakes of the past.
 
 #include <ctype.h>
 #include <dirent.h>
@@ -46,6 +45,11 @@
 #include <unistd.h>
 #include <wchar.h>
 
+#include "private/libc_logging.h"
+
+// The part is only for 32-bit targets.
+#if !defined(__LP64__)
+
 // These were accidentally declared in <unistd.h> because we stupidly used to inline
 // getpagesize() and __getpageshift(). Needed for backwards compatibility with old NDK apps.
 extern "C" {
@@ -342,4 +346,15 @@ extern "C" void* dlmalloc(size_t size) {
   return malloc(size);
 }
 
-#endif
+#endif // !defined(__LP64__)
+
+// This is never implemented in bionic, only needed for ABI compatibility with the NDK.
+extern "C" char* getusershell() {
+  return NULL;
+}
+
+// This is never implemented in bionic, only needed for ABI compatibility with the NDK.
+extern "C" void setusershell() { }
+
+// This is never implemented in bionic, only needed for ABI compatibility with the NDK.
+extern "C" void endusershell() { }

libc/bionic/stubs.cpp

@@ -458,19 +458,6 @@ void endpwent() {
   UNIMPLEMENTED;
 }
 
-char* getusershell() {
-  UNIMPLEMENTED;
-  return NULL;
-}
-
-void setusershell() {
-  UNIMPLEMENTED;
-}
-
-void endusershell() {
-  UNIMPLEMENTED;
-}
-
 // Portable code should use sysconf(_SC_PAGE_SIZE) directly instead.
 int getpagesize() {
   // We dont use sysconf(3) here because that drags in stdio, which makes static binaries fat.

libc/include/unistd.h

@@ -116,10 +116,6 @@ extern int setresgid(gid_t, gid_t, gid_t);
 extern int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
 extern int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
 extern char* getlogin(void);
-extern char* getusershell(void);
-extern void setusershell(void);
-extern void endusershell(void);
-
 
 extern long fpathconf(int, int);
 extern long pathconf(const char*, int);