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PPCSymbolDB: Improve symbol map column detection

This commit is contained in:
Sepalani 2020-07-04 23:22:37 +04:00
parent c77a5f7e32
commit 0b0bab11d8
1 changed files with 30 additions and 11 deletions
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41
Source/Core/Core/PowerPC/PPCSymbolDB.cpp
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@ -7,6 +7,7 @@
#include <algorithm>
#include <cstring>
#include <map>
#include <sstream>
#include <string>
#include <string_view>
#include <utility>
@ -243,12 +244,6 @@ bool PPCSymbolDB::LoadMap(const std::string& filename, bool bad)
if (length < 4)
continue;
if (length == 34 && strcmp(line, " address Size address offset\n") == 0)
{
column_count = 4;
continue;
}
char temp[256]{};
sscanf(line, "%255s", temp);
@ -298,14 +293,38 @@ bool PPCSymbolDB::LoadMap(const std::string& filename, bool bad)
if (section_name.empty())
continue;
// Detect two columns with three columns fallback
// Column detection heuristic
if (column_count == 0)
{
const std::string_view stripped_line = StripSpaces(line);
if (std::count(stripped_line.begin(), stripped_line.end(), ' ') == 1)
column_count = 2;
else
constexpr auto is_hex_str = [](const std::string& s) {
return !s.empty() && s.find_first_not_of("0123456789abcdefABCDEF") == std::string::npos;
};
const std::string stripped_line(StripSpaces(line));
std::istringstream iss(stripped_line);
iss.imbue(std::locale::classic());
std::string word;
// Two columns format:
// 80004000 zz_80004000_
if (!(iss >> word) || word.length() != 8 || !is_hex_str(word))
continue;
column_count = 2;
// Three columns format:
// Starting Virtual
// address Size address
// -----------------------
if (iss && iss >> word && is_hex_str(word) && iss >> word && is_hex_str(word))
column_count = 3;
else
iss.str("");
// Four columns format:
// Starting Virtual File
// address Size address offset
// ---------------------------------
if (iss && iss >> word && word.length() == 8 && is_hex_str(word))
column_count = 4;
}
u32 address, vaddress, size, offset, alignment;