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Allow to start up with modified binary under gdb

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This commit is contained in:
Alexey Milovidov 2021-02-26 20:15:11 +03:00
parent 9038fb3861
commit ac4d3b504e
1 changed files with 21 additions and 10 deletions
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31
programs/server/Server.cpp
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@ -82,6 +82,7 @@
#if defined(OS_LINUX)
# include <sys/mman.h>
# include <sys/ptrace.h>
# include <Common/hasLinuxCapability.h>
#endif
@ -480,16 +481,26 @@ int Server::main(const std::vector<std::string> & /*args*/)
}
else
{
throw Exception(ErrorCodes::CORRUPTED_DATA,
"Calculated checksum of the ClickHouse binary ({0}) does not correspond"
" to the reference checksum stored in the binary ({1})."
" It may indicate one of the following:"
" - the file {2} was changed just after startup;"
" - the file {2} is damaged on disk due to faulty hardware;"
" - the loaded executable is damaged in memory due to faulty hardware;"
" - the file {2} was intentionally modified;"
" - logical error in code."
, calculated_binary_hash, stored_binary_hash, executable_path);
/// If program is run under debugger, ptrace will fail.
if (ptrace(PTRACE_TRACEME, 0, nullptr, nullptr) == -1)
{
/// Program is run under debugger. Modification of it's binary image is ok for breakpoints.
LOG_WARNING(log, "Server is run under debugger and its binary image is modified (most likely with breakpoints).",
calculated_binary_hash);
}
else
{
throw Exception(ErrorCodes::CORRUPTED_DATA,
"Calculated checksum of the ClickHouse binary ({0}) does not correspond"
" to the reference checksum stored in the binary ({1})."
" It may indicate one of the following:"
" - the file {2} was changed just after startup;"
" - the file {2} is damaged on disk due to faulty hardware;"
" - the loaded executable is damaged in memory due to faulty hardware;"
" - the file {2} was intentionally modified;"
" - logical error in code."
, calculated_binary_hash, stored_binary_hash, executable_path);
}
}
}
else