移植leveldb到hi3519

1.編譯環境

• Ubuntu16.4 + arm-hisiv500-linux-
• leveldb 下載下傳位址：https://github.com/google/leveldb/releases

2.移植步驟

• 修改build_detect_platform檔案：
  • 添加海思編譯工具

if test -z "$CC"; then
    CC=gcc
fi

CXX=arm-hisiv500-linux-g++
if test -z "$CXX"; then
    CXX=g++
fi
           

• 修改db/db_iter.h檔案

在#endif前添加如下一行

typedef int ssize_t;

如果不定義會出現如下錯誤：

arm-hisiv500-linux-g++ -I. -I./include -std=c++x -fno-builtin-memcmp -lpthread -DOS_LINUX -DLEVELDB_PLATFORM_POSIX -DLEVELDB_ATOMIC_PRESENT -O2 -DNDEBUG -fPIC -c db/db_iter.cc -o out-shared/db/db_iter.o
db/db_iter.cc::: error: ‘ssize_t’ does not name a type
   ssize_t RandomPeriod() {
   ^
db/db_iter.cc::: error: ‘ssize_t’ does not name a type
   ssize_t bytes_counter_;
   ^
db/db_iter.cc: In constructor ‘leveldb::{anonymous}::DBIter::DBIter(leveldb::DBImpl*, const leveldb::Comparator*, leveldb::Iterator*, leveldb::SequenceNumber, uint32_t)’:
db/db_iter.cc::: error: class ‘leveldb::{anonymous}::DBIter’ does not have any field named ‘bytes_counter_’
         bytes_counter_(RandomPeriod()) {
         ^
db/db_iter.cc::: error: ‘RandomPeriod’ was not declared in this scope
         bytes_counter_(RandomPeriod()) {
                                     ^
db/db_iter.cc: In member function ‘bool leveldb::{anonymous}::DBIter::ParseKey(leveldb::ParsedInternalKey*)’:
db/db_iter.cc::: error: ‘ssize_t’ was not declared in this scope
   ssize_t n = k.size() + iter_->value().size();
   ^
db/db_iter.cc::: error: ‘bytes_counter_’ was not declared in this scope
   bytes_counter_ -= n;
   ^
db/db_iter.cc::: error: ‘n’ was not declared in this scope
   bytes_counter_ -= n;
                     ^
db/db_iter.cc::: error: ‘RandomPeriod’ was not declared in this scope
     bytes_counter_ += RandomPeriod();
                                    ^
Makefile:: recipe for target 'out-shared/db/db_iter.o' failed
make: *** [out-shared/db/db_iter.o] Error 
           

• 編譯：

  make

• 編譯後生成的庫和頭檔案在如下目錄：

  out-shared out-static include