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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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10
linker/linker_phdr.cpp
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@@ -142,18 +142,12 @@ bool ElfReader::Load(const android_dlextinfo* extinfo) {
}
bool ElfReader::ReadElfHeader() {
off64_t actual_offset = lseek64(fd_, file_offset_, SEEK_SET);
if (actual_offset != file_offset_) {
DL_ERR("seek to %" PRId64 " failed: %s", file_offset_, strerror(errno));
return false;
}
ssize_t rc = TEMP_FAILURE_RETRY(read(fd_, &header_, sizeof(header_)));
ssize_t rc = TEMP_FAILURE_RETRY(pread64(fd_, &header_, sizeof(header_), file_offset_));
if (rc < 0) {
DL_ERR("can't read file \"%s\": %s", name_, strerror(errno));
return false;
}
if (rc != sizeof(header_)) {
DL_ERR("\"%s\" is too small to be an ELF executable: only found %zd bytes", name_,
static_cast<size_t>(rc));