diff --git a/libc/bionic/sysinfo.cpp b/libc/bionic/sysinfo.cpp
new file mode 100644
index 0000000..6f0afb8
--- /dev/null
+++ b/libc/bionic/sysinfo.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ * 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 copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/sysinfo.h>
+
+#include <dirent.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "private/ScopedReaddir.h"
+
+static bool __matches_cpuN(const char* s) {
+  // The %c trick is to ensure that we have the anchored match "^cpu[0-9]+$".
+  unsigned cpu;
+  char dummy;
+  return (sscanf(s, "cpu%u%c", &cpu, &dummy) == 1);
+}
+
+int get_nprocs_conf() {
+  // On x86 kernels you can use /proc/cpuinfo for this, but on ARM kernels offline CPUs disappear
+  // from there. This method works on both.
+  ScopedReaddir reader("/sys/devices/system/cpu");
+  if (reader.IsBad()) {
+    return 1;
+  }
+
+  int result = 0;
+  dirent* entry;
+  while ((entry = reader.ReadEntry()) != NULL) {
+    if (entry->d_type == DT_DIR && __matches_cpuN(entry->d_name)) {
+      ++result;
+    }
+  }
+  return result;
+}
+
+int get_nprocs() {
+  FILE* fp = fopen("/proc/stat", "re");
+  if (fp == NULL) {
+    return 1;
+  }
+
+  int result = 0;
+  char buf[256];
+  while (fgets(buf, sizeof(buf), fp) != NULL) {
+    // Extract just the first word from the line.
+    // 'cpu0 7976751 1364388 3116842 469770388 8629405 0 49047 0 0 0'
+    char* p = strchr(buf, ' ');
+    if (p != NULL) {
+      *p = 0;
+    }
+    if (__matches_cpuN(buf)) {
+      ++result;
+    }
+  }
+  fclose(fp);
+  return result;
+}
+
+static int __get_meminfo(const char* pattern) {
+  FILE* fp = fopen("/proc/meminfo", "re");
+  if (fp == NULL) {
+    return -1;
+  }
+
+  int result = -1;
+  char buf[256];
+  while (fgets(buf, sizeof(buf), fp) != NULL) {
+    long total;
+    if (sscanf(buf, pattern, &total) == 1) {
+      result = (int) (total / (PAGE_SIZE/1024));
+      break;
+    }
+  }
+  fclose(fp);
+  return result;
+}
+
+long get_phys_pages() {
+  return __get_meminfo("MemTotal: %ld kB");
+}
+
+long get_avphys_pages() {
+  return __get_meminfo("MemFree: %ld kB");
+}