Sync our homegrown SysInfo replacement with the one in Chrome base.

src/base/platform/platform-posix.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Platform-specific code for POSIX goes here. This is not a platform on its
 // own, but contains the parts which are the same across the POSIX platforms
 // Linux, MacOS, FreeBSD, OpenBSD, NetBSD and QNX.
 
 #include <dlfcn.h>
 #include <errno.h>
@@ skipping 52 matching lines @@
 // 0 is never a valid thread id.
 const pthread_t kNoThread = (pthread_t) 0;
 
 bool g_hard_abort = false;
 
 const char* g_gc_fake_mmap = NULL;
 
 }  // namespace
 
 
-int OS::NumberOfProcessorsOnline() {
-  return static_cast<int>(sysconf(_SC_NPROCESSORS_ONLN));
-}
-
-
-// Maximum size of the virtual memory.  0 means there is no artificial
-// limit.
-
-intptr_t OS::MaxVirtualMemory() {
-  struct rlimit limit;
-  int result = getrlimit(RLIMIT_DATA, &limit);
-  if (result != 0) return 0;
-#if V8_OS_NACL
-  // The NaCl compiler doesn't like resource.h constants.
-  if (static_cast<int>(limit.rlim_cur) == -1) return 0;
-#else
-  if (limit.rlim_cur == RLIM_INFINITY) return 0;
-#endif
-  return limit.rlim_cur;
-}
-
-
-uint64_t OS::TotalPhysicalMemory() {
-#if V8_OS_MACOSX
-  int mib[2];
-  mib[0] = CTL_HW;
-  mib[1] = HW_MEMSIZE;
-  int64_t size = 0;
-  size_t len = sizeof(size);
-  if (sysctl(mib, 2, &size, &len, NULL, 0) != 0) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(size);
-#elif V8_OS_FREEBSD
-  int pages, page_size;
-  size_t size = sizeof(pages);
-  sysctlbyname("vm.stats.vm.v_page_count", &pages, &size, NULL, 0);
-  sysctlbyname("vm.stats.vm.v_page_size", &page_size, &size, NULL, 0);
-  if (pages == -1 || page_size == -1) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(pages) * page_size;
-#elif V8_OS_CYGWIN
-  MEMORYSTATUS memory_info;
-  memory_info.dwLength = sizeof(memory_info);
-  if (!GlobalMemoryStatus(&memory_info)) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(memory_info.dwTotalPhys);
-#elif V8_OS_QNX
-  struct stat stat_buf;
-  if (stat("/proc", &stat_buf) != 0) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(stat_buf.st_size);
-#else
-  intptr_t pages = sysconf(_SC_PHYS_PAGES);
-  intptr_t page_size = sysconf(_SC_PAGESIZE);
-  if (pages == -1 || page_size == -1) {
-    UNREACHABLE();
-    return 0;
-  }
-  return static_cast<uint64_t>(pages) * page_size;
-#endif
-}
-
-
 int OS::ActivationFrameAlignment() {
 #if V8_TARGET_ARCH_ARM
   // On EABI ARM targets this is required for fp correctness in the
   // runtime system.
   return 8;
 #elif V8_TARGET_ARCH_MIPS
   return 8;
 #else
   // Otherwise we just assume 16 byte alignment, i.e.:
   // - With gcc 4.4 the tree vectorization optimizer can generate code
@@ skipping 574 matching lines @@
 
 void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
   pthread_key_t pthread_key = LocalKeyToPthreadKey(key);
   int result = pthread_setspecific(pthread_key, value);
   DCHECK_EQ(0, result);
   USE(result);
 }
 
 
 } }  // namespace v8::base