项关闭，这样在测试环境就可以使用 AddressSanitizer 高效地定位内存问题。
Core dump 分析工具
分析 C++ 程序生成的 Core Dump 文件经常遇到的问题就是怎么打印出 STL 容器中的值以及 Boost 中容器的值，有如下三个工具可以高效的查看 STL 和 Boost 中容器的值。
STL-View
可以将此文件 https://github.com/dataroaring/tools/blob/main/gdb/dbinit_stl_views-1.03.txt 放置到~/.gdbinit中使用 STL-View。STL-View 输出非常友好，支持 pvector，plist，plist_member，pmap，pmap_member，pset，pdequeue，pstack，pqueue，ppqueue，pbitset，pstring，pwstring。以 Apache Doris 中使用 pvector 为例，它能够输出 vector 中的所有元素。
(gdb) pvector block.data
elem[0]: $5 = {
column = {
<COW<doris::vectorized::IColumn>::intrusive_ptr<doris::vectorized::IColumn const>> = {
t = 0x606000fdc820
}, <No data fields>},
type = {
<std::__shared_ptr<doris::vectorized::IDataType const, (__gnu_cxx::_Lock_policy)2>> = {
<std::__shared_ptr_access<doris::vectorized::IDataType const, (__gnu_cxx::_Lock_policy)2, false, false>> = {<No data fields>},
members of std::__shared_ptr<doris::vectorized::IDataType const, (__gnu_cxx::_Lock_policy)2>:
_M_ptr = 0x6030069e9780,
_M_refcount = {
_M_pi = 0x6030069e9770
}
}, <No data fields>},
name = {
static npos = 18446744073709551615,
_M_dataplus = {
<std::allocator<char>> = {
<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>},
members of std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider:
_M_p = 0x61400006e068 "n_nationkey"
},
_M_string_length = 11,
{
_M_local_buf = "n_nationkey\000\276\276\276\276",
_M_allocated_capacity = 7957695015158701934
}
}
}
elem[1]: $6 = {
column = {
<COW<doris::vectorized::IColumn>::intrusive_ptr<doris::vectorized::IColumn const>> = {
t = 0x6080001ec220
}, <No data fields>},
type = {
...
Pretty-Printer
GCC 7.0 开始支持了 Pretty-Printer 打印 STL 容器，可以将以下代码放置到~/.gdbinit中使 Pretty-Printer 生效。
注意：/usr/share/gcc/python需要更换为本机对应的地址。
python
import sys
sys.path.insert(0, '/usr/share/gcc/python')
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end
以 vector 为例， Pretty-Printer 能够打印出详细内容。
(gdb) p block.data
$1 = std::vector of length 7, capacity 8 = {{
column = {
<COW<doris::vectorized::IColumn>::intrusive_ptr<doris::vectorized::IColumn const>> = {
t = 0x606000fdc820
}, <No data fields>},
type = std::shared_ptr<const doris::vectorized::IDataType> (use count 1, weak count 0) = {
get() = 0x6030069e9780
},
name = "n_nationkey"
}, {
column = {
<COW<doris::vectorized::IColumn>::intrusive_ptr<doris::vectorized::IColumn const>> = {
t = 0x6080001ec220
}, <No data fields>},
type = std::shared_ptr<const doris::vectorized::IDataType> (use count 1, weak count 0) = {
get() = 0x6030069e9750
},
name = "n_name"
}, {
column = {
<COW<doris::vectorized::IColumn>::intrusive_ptr<doris::vectorized::IColumn const>> = {
t = 0x606000fd52c0
}, <No data fields>},
type = std::shared_ptr<const doris::vectorized::IDataType> (use count 1, weak count 0) = {
get() = 0x6030069e9720
},
name = "n_regionkey"
}, {
column = {
<COW<doris::vectorized::IColumn>::intru