christoph/fail
1
Fork 0
Code Actions Packages Releases Activity

import-trace: record stats on failed register mappings

Browse Source 
The import-trace tool now systematically collects statistics on which
LLVM -> FAIL* register ID mappings failed during import, and presents
those after the import finished.

Change-Id: Ied67853d754483277868fe21bf2c6efeaeb60f09
This commit is contained in:
Horst Schirmeier
2018-07-30 13:48:08 +02:00
parent d581fd27a2
commit 2c7640fe90
3 changed files with 47 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
tools/import-trace/RegisterImporter.hpp
View File

@ -24,6 +24,15 @@ class RegisterImporter : public Importer {
std::set<unsigned> m_register_ids;
unsigned m_ip_register_id;
// Data structures for recording failed LLVM -> FAIL* register mappings,
// including occurrence counts in the trace (to give an estimate on the
// impact) and instruction addresses (for debugging purposes).
struct RegNotFound {
uint64_t count = 0;
std::set<fail::guest_address_t> address;
};
std::map<fail::LLVMDisassembler::register_t, RegNotFound> m_regnotfound;
public:
RegisterImporter() : Importer(), do_gp(true), do_flags(false), do_ip(false),
do_split_registers(true), m_ip_register_id(0) {}
@ -42,6 +51,8 @@ protected:
return true;
}
virtual bool trace_end_reached();
virtual void open_unused_ec_intervals() {
/* empty, Memory Map has a different meaning in this importer */
}