int ProcSyms::Module::_add_symbol(const char *symname, uint64_t start,
uint64_t end, int flags, void *p) {
Module *m = static_cast<Module *>(p);
- m->syms_.emplace_back(symname, start, end, flags);
+ auto res = m->symnames_.emplace(symname);
+ m->syms_.emplace_back(&*(res.first), start, end, flags);
return 0;
}
load_sym_table();
for (Symbol &s : syms_) {
- if (s.name == symname) {
+ if (*(s.name) == symname) {
*addr = is_so() ? start_ + s.start : s.start;
return true;
}
sym->module = name_.c_str();
sym->offset = offset;
- auto it = std::upper_bound(syms_.begin(), syms_.end(), Symbol("", offset, 0));
+ auto it = std::upper_bound(syms_.begin(), syms_.end(), Symbol(nullptr, offset, 0));
if (it != syms_.begin())
--it;
else
if (it != syms_.end()
&& offset >= it->start && offset < it->start + it->size) {
- sym->name = it->name.c_str();
+ sym->name = it->name->c_str();
sym->offset = (offset - it->start);
return true;
}
#include <algorithm>
#include <string>
#include <unordered_map>
+#include <unordered_set>
#include <vector>
#include <sys/types.h>
class ProcSyms : SymbolCache {
struct Symbol {
- Symbol(const char *name, uint64_t start, uint64_t size, int flags = 0)
+ Symbol(const std::string *name, uint64_t start, uint64_t size, int flags = 0)
: name(name), start(start), size(size), flags(flags) {}
- std::string name;
+ const std::string *name;
uint64_t start;
uint64_t size;
int flags;
std::string name_;
uint64_t start_;
uint64_t end_;
+ std::unordered_set<std::string> symnames_;
std::vector<Symbol> syms_;
void load_sym_table();