Change call to mmap64.

The code was using an off64_t but calling mmap. This caused the code
to abort on 32 bit.

Add a unit test that would abort on the previous version.

Bug: 155662887

Test: New unit test passes.
Change-Id: I7a6efbc0d4227403c3d08a08deea56f239382157

1 files changed, 1 insertions, 1 deletions

diff --git a/libutils/FileMap.cpp b/libutils/FileMap.cpp
index 1202c156df..1d899ab7fc 100644
--- a/libutils/FileMap.cpp
+++ b/libutils/FileMap.cpp
@@ -195,7 +195,7 @@ bool FileMap::create(const char* origFileName, int fd, off64_t offset, size_t le
     int prot = PROT_READ;
     if (!readOnly) prot |= PROT_WRITE;
 
-    void* ptr = mmap(nullptr, adjLength, prot, flags, fd, adjOffset);
+    void* ptr = mmap64(nullptr, adjLength, prot, flags, fd, adjOffset);
     if (ptr == MAP_FAILED) {
         if (errno == EINVAL && length == 0) {
             ptr = nullptr;