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Fix #8: expose ELF .symtab symbol names to builder

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Fix #8: expose ELF .symtab symbol names to CFG builder
This commit is contained in:
x86byte
2026-07-02 12:58:53 +01:00
committed by GitHub
parent 50c9834a39 9146af0402
commit 664dafbc43
3 changed files with 13 additions and 1 deletions
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cfg/builder.cpp
+4 -1
View File
@@ -633,6 +633,8 @@ CFG CFGBuilder::build()
auto it = imp_map.find(a);
if (it != imp_map.end()) name = it->second;
}
if (name.empty())
name = m_bin->getSymbolName(a);
auto func = buildFunction(a, name);
if (isEmpty(func)) continue;
@@ -659,7 +661,8 @@ CFG CFGBuilder::build()
a = skipEndbr64(a);
if (built.count(a)) continue;
auto func = buildFunction(a, "");
string sym_name = m_bin->getSymbolName(a);
auto func = buildFunction(a, sym_name);
if (isEmpty(func)) continue;
setEndAddress(func);
cfg.functions.push_back(func);
loader/binary.hpp
+4
View File
@@ -42,6 +42,10 @@ class Binary
return {};
}
virtual const string& getPath() const = 0;
virtual string getSymbolName(addr_t addr) const
{
return {};
}
static unique_ptr<Binary> create(const string& path);
};
loader/elf.hpp
+5
View File
@@ -21,6 +21,11 @@ class ELFLoader : public Binary
vector<pair<addr_t, string>> getExportedFunctions() const override;
vector<ImportEntry> getImportedFunctions() const override;
const string& getPath() const override { return m_path; }
string getSymbolName(addr_t addr) const override
{
auto it = m_symbols.find(addr);
return it != m_symbols.end() ? it->second : string();
}
addr_t getInitArray() const { return m_init_array; }
addr_t getFiniArray() const { return m_fini_array; }