- Address warnings about 64-bit to 32-bit conversions.

runtime/bin/file_linux.cc

Index: runtime/bin/file_linux.cc
===================================================================
--- runtime/bin/file_linux.cc	(revision 31864)
+++ runtime/bin/file_linux.cc	(working copy)
@@ -77,19 +77,19 @@
 }
 
 
-off64_t File::Position() {
+int64_t File::Position() {
   ASSERT(handle_->fd() >= 0);
   return lseek64(handle_->fd(), 0, SEEK_CUR);
 }
 
 
-bool File::SetPosition(off64_t position) {
+bool File::SetPosition(int64_t position) {
   ASSERT(handle_->fd() >= 0);
   return lseek64(handle_->fd(), position, SEEK_SET) >= 0;
 }
 
 
-bool File::Truncate(off64_t length) {
+bool File::Truncate(int64_t length) {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
       ftruncate64(handle_->fd(), length) != -1);
@@ -102,7 +102,7 @@
 }
 
 
-off64_t File::Length() {
+int64_t File::Length() {
   ASSERT(handle_->fd() >= 0);
   struct stat64 st;
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(fstat64(handle_->fd(), &st)) == 0) {
@@ -135,7 +135,7 @@
     return NULL;
   }
   if (((mode & kWrite) != 0) && ((mode & kTruncate) == 0)) {
-    off64_t position = lseek64(fd, 0, SEEK_END);
+    int64_t position = lseek64(fd, 0, SEEK_END);
     if (position < 0) {
       return NULL;
     }
@@ -243,8 +243,8 @@
       VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(close(old_fd));
       return false;
     }
-    off64_t offset = 0;
-    int result = 1;
+    int64_t offset = 0;
+    intptr_t result = 1;
     while (result > 0) {
       // Loop to ensure we copy everything, and not only up to 2GB.
       result = TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
@@ -284,7 +284,7 @@
 }
 
 
-off64_t File::LengthFromPath(const char* name) {
+int64_t File::LengthFromPath(const char* name) {
   struct stat64 st;
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(stat64(name, &st)) == 0) {
     return st.st_size;