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Patch: add floating point support

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This commit is contained in:
Nekotekina 2017-07-17 16:34:04 +03:00
parent e39ee10105
commit f91f2e3e6d
4 changed files with 53 additions and 12 deletions
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39
Utilities/bin_patch.cpp
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@ -14,9 +14,13 @@ void fmt_class_string<patch_type>::format(std::string& out, u64 arg)
case patch_type::le16: return "le16";
case patch_type::le32: return "le32";
case patch_type::le64: return "le64";
case patch_type::bef32: return "bef32";
case patch_type::bef64: return "bef64";
case patch_type::be16: return "be16";
case patch_type::be32: return "be32";
case patch_type::be64: return "be64";
case patch_type::lef32: return "lef32";
case patch_type::lef64: return "lef64";
}
return unknown;
@ -39,23 +43,44 @@ void patch_engine::append(const std::string& patch)
u64 type64 = 0;
cfg::try_to_enum_value(&type64, &fmt_class_string<patch_type>::format, patch[0].Scalar());
struct patch info;
struct patch info{};
info.type = static_cast<patch_type>(type64);
info.offset = patch[1].as<u32>();
info.value = patch[2].as<u64>();
switch (info.type)
{
case patch_type::bef32:
case patch_type::lef32:
{
info.value_as<f32>() = patch[2].as<f32>();
break;
}
case patch_type::bef64:
case patch_type::lef64:
{
info.value_as<f64>() = patch[2].as<f64>();
break;
}
default:
{
info.value = patch[2].as<u64>();
break;
}
}
data.emplace_back(info);
}
}
}
}
void patch_engine::apply(const std::string& name, u8* dst) const
std::size_t patch_engine::apply(const std::string& name, u8* dst) const
{
const auto found = m_map.find(name);
if (found == m_map.cend())
{
return;
return 0;
}
// Apply modifications sequentially
@ -76,11 +101,13 @@ void patch_engine::apply(const std::string& name, u8* dst) const
break;
}
case patch_type::le32:
case patch_type::lef32:
{
*reinterpret_cast<le_t<u32, 1>*>(ptr) = static_cast<u32>(p.value);
break;
}
case patch_type::le64:
case patch_type::lef64:
{
*reinterpret_cast<le_t<u64, 1>*>(ptr) = static_cast<u64>(p.value);
break;
@ -91,15 +118,19 @@ void patch_engine::apply(const std::string& name, u8* dst) const
break;
}
case patch_type::be32:
case patch_type::bef32:
{
*reinterpret_cast<be_t<u32, 1>*>(ptr) = static_cast<u32>(p.value);
break;
}
case patch_type::be64:
case patch_type::bef64:
{
*reinterpret_cast<be_t<u64, 1>*>(ptr) = static_cast<u64>(p.value);
break;
}
}
}
return found->second.size();
}