Support Android in MallocHook for mmap, munmap and mremap.

third_party/tcmalloc/chromium/src/base/linux_syscall_support.h

 /* Copyright (c) 2005-2008, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 137 matching lines @@
 #include <errno.h>
 #include <signal.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
 #include <sys/ptrace.h>
 #include <sys/resource.h>
 #include <sys/time.h>
 #include <sys/types.h>
+#if defined(__ANDROID__)
+#include <sys/syscall.h>
+#include <sys/linux-syscalls.h>
+#else
 #include <syscall.h>
+#endif
 #include <unistd.h>
 #include <linux/unistd.h>
 #include <endian.h>
 
 #ifdef __mips__
 /* Include definitions of the ABI currently in use.                          */
 #include <sgidefs.h>
 #endif
 
 #endif
@@ skipping 295 matching lines @@
   long               st_mtime_;
   long               st_mtime_nsec_;
   long               st_ctime_;
   long               st_ctime_nsec_;
   int                st_blksize;
   int                st_blocks;
   int                st_pad4[14];
 };
 #endif
 
+// ulong is not defined in Android while used to define __llseek.
+#if defined(__ANDROID__)
+typedef unsigned long int ulong;
+#endif
+
 
 /* Definitions missing from the standard header files                        */
 #ifndef O_DIRECTORY
 #if defined(__arm__)
 #define O_DIRECTORY             0040000
 #else
 #define O_DIRECTORY             0200000
 #endif
 #endif
 #ifndef PR_GET_DUMPABLE
@@ skipping 1470 matching lines @@
   #if defined(__x86_64__) || \
       defined(__arm__) || \
      (defined(__mips__) && _MIPS_SIM != _MIPS_SIM_ABI32)
     LSS_INLINE _syscall4(pid_t, wait4,            pid_t, p,
                          int*,                    s, int,       o,
                          struct kernel_rusage*,   r)
     LSS_INLINE pid_t LSS_NAME(waitpid)(pid_t pid, int *status, int options){
       return LSS_NAME(wait4)(pid, status, options, 0);
     }
    #endif
-  #if defined(__i386__) || defined(__x86_64__) || defined(__arm__)
+  #if (defined(__i386__) || defined(__x86_64__) || defined(__arm__)) && \
+      !defined(__ANDROID__)
     LSS_INLINE _syscall4(int, openat, int, d, const char *, p, int, f, int, m)
   #endif
   LSS_INLINE int LSS_NAME(sigemptyset)(struct kernel_sigset_t *set) {
     memset(&set->sig, 0, sizeof(set->sig));
     return 0;
   }
 
   LSS_INLINE int LSS_NAME(sigfillset)(struct kernel_sigset_t *set) {
     memset(&set->sig, -1, sizeof(set->sig));
     return 0;
@@ skipping 283 matching lines @@
     return rc;
   }
 #endif
 
 #if defined(__cplusplus) && !defined(SYS_CPLUSPLUS)
 }
 #endif
 
 #endif
 #endif