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Rename library_offset to library_fd_offset

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replace lseek() and use pread() instead
 add test for library_fd_offset > file_size case

Bug: 17762003
Change-Id: I4555f0be635124efe849c1f226985bcba72ffcbd
This commit is contained in:
Dmitriy Ivanov
2014-10-21 12:09:18 -07:00
parent 8f41d3d3bc
commit a6c1279098
4 changed files with 29 additions and 26 deletions
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12
linker/linker.cpp
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@@ -787,8 +787,8 @@ static soinfo* load_library(LoadTaskList& load_tasks, const char* name, int rtld
if (extinfo != nullptr && (extinfo->flags & ANDROID_DLEXT_USE_LIBRARY_FD) != 0) {
fd = extinfo->library_fd;
if ((extinfo->flags & ANDROID_DLEXT_USE_LIBRARY_OFFSET) != 0) {
file_offset = extinfo->library_offset;
if ((extinfo->flags & ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET) != 0) {
file_offset = extinfo->library_fd_offset;
}
} else {
// Open the file.
@@ -802,13 +802,13 @@ static soinfo* load_library(LoadTaskList& load_tasks, const char* name, int rtld
}
if ((file_offset % PAGE_SIZE) != 0) {
DL_ERR("file offset for the library %s is not page-aligned: %" PRId64, name, file_offset);
DL_ERR("file offset for the library \"%s\" is not page-aligned: %" PRId64, name, file_offset);
return nullptr;
}
struct stat file_stat;
if (TEMP_FAILURE_RETRY(fstat(fd, &file_stat)) != 0) {
DL_ERR("unable to stat file for the library %s: %s", name, strerror(errno));
DL_ERR("unable to stat file for the library \"%s\": %s", name, strerror(errno));
return nullptr;
}
@@ -1060,8 +1060,8 @@ soinfo* do_dlopen(const char* name, int flags, const android_dlextinfo* extinfo)
return nullptr;
}
if ((extinfo->flags & ANDROID_DLEXT_USE_LIBRARY_FD) == 0 &&
(extinfo->flags & ANDROID_DLEXT_USE_LIBRARY_OFFSET) != 0) {
DL_ERR("invalid extended flag combination (ANDROID_DLEXT_USE_LIBRARY_OFFSET without ANDROID_DLEXT_USE_LIBRARY_FD): 0x%" PRIx64, extinfo->flags);
(extinfo->flags & ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET) != 0) {
DL_ERR("invalid extended flag combination (ANDROID_DLEXT_USE_LIBRARY_FD_OFFSET without ANDROID_DLEXT_USE_LIBRARY_FD): 0x%" PRIx64, extinfo->flags);
return nullptr;
}
}