thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-09-24 02:30:51 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added demangling to function symbolizeAddress

Browse Source
This commit is contained in:
Alexey Milovidov 2019-07-23 16:34:22 +03:00
parent bd3173bac2
commit 0755d1e4b3
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
dbms/src/Functions/symbolizeAddress.cpp
View File

@ -1,5 +1,6 @@
#include <dlfcn.h>
#include <common/unaligned.h>
#include <common/demangle.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnsNumber.h>
#include <DataTypes/DataTypeString.h>
@ -74,10 +75,15 @@ public:
{
void * addr = unalignedLoad<void *>(&data[i]);
Dl_info info;
/// This is unsafe. The function dladdr may loop infinitely.
/// Reproduce with query: SELECT DISTINCT symbolizeAddress(number) FROM system.numbers
if (dladdr(addr, &info) && info.dli_sname)
result_column->insertDataWithTerminatingZero(info.dli_sname, strlen(info.dli_sname) + 1);
{
int demangling_status = 0;
std::string demangled_name = demangle(info.dli_sname, demangling_status);
result_column->insertDataWithTerminatingZero(demangled_name.data(), demangled_name.size() + 1);
}
else
result_column->insertDefault();
}