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Minor fixes

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Libmixer: additional patterns
This commit is contained in:
Nekotekina 2014-03-29 02:50:05 +04:00
parent 70cc2494aa
commit 689c41ccb3
9 changed files with 316 additions and 102 deletions
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84
rpcs3/Emu/SysCalls/Static.cpp
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@ -5,7 +5,7 @@
extern ArrayF<SFunc> g_static_funcs_list;
void StaticAnalyse(void* ptr, u32 size)
void StaticAnalyse(void* ptr, u32 size, u32 base)
{
u32* data = (u32*)ptr; size /= 4;
@ -14,32 +14,78 @@ void StaticAnalyse(void* ptr, u32 size)
{
for (u32 j = 0; j < g_static_funcs_list.GetCount(); j++)
{
if ((data[i] & g_static_funcs_list[j].ops[0].mask) == g_static_funcs_list[j].ops[0].crc && (i + g_static_funcs_list[j].ops.GetCount()) < size)
if ((data[i] & g_static_funcs_list[j].ops[0].mask) == g_static_funcs_list[j].ops[0].crc)
{
bool found = true;
for (u32 k = i + 1, x = 1; x < g_static_funcs_list[j].ops.GetCount(); k++, x++)
u32 can_skip = 0;
for (u32 k = i, x = 0; x + 1 <= g_static_funcs_list[j].ops.GetCount(); k++, x++)
{
// skip NOP
if (data[k] == se32(0x60000000))
{
k++;
continue;
}
if ((data[k] & g_static_funcs_list[j].ops[x].mask) != g_static_funcs_list[j].ops[x].crc)
if (k >= size)
{
found = false;
break;
}
// skip NOP
if (data[k] == se32(0x60000000))
{
x--;
continue;
}
const u32 mask = g_static_funcs_list[j].ops[x].mask;
const u32 crc = g_static_funcs_list[j].ops[x].crc;
if (!mask)
{
// TODO: define syntax
if (crc < 4) // skip various number of instructions that don't match next pattern entry
{
can_skip += crc;
k--; // process this position again
}
else if (data[k] != crc) // skippable pattern ("optional" instruction), no mask allowed
{
k--;
if (can_skip) // cannot define this behaviour properly
{
ConLog.Warning("StaticAnalyse(): can_skip = %d (unchanged)", can_skip);
}
}
else
{
if (can_skip) // cannot define this behaviour properly
{
ConLog.Warning("StaticAnalyse(): can_skip = %d (set to 0)", can_skip);
can_skip = 0;
}
}
}
else if ((data[k] & mask) != crc) // masked pattern
{
if (can_skip)
{
can_skip--;
}
else
{
found = false;
break;
}
}
else
{
can_skip = 0;
}
}
if (found)
{
//ConLog.Success("Function '%s' hooked", wxString(g_static_funcs_list[j].name).wx_str());
ConLog.Write("Function '%s' hooked (addr=0x%x)", wxString(g_static_funcs_list[j].name).wx_str(), i * 4 + base);
g_static_funcs_list[j].found++;
data[i] = re(0x39600000 | j); // li r11, j
data[i+0] = re32(0x39600000 | j); // li r11, j
data[i+1] = se32(0x44000003); // sc 3
data[i+2] = se32(0x4e800020); // blr
i += 2; // ???
i += 2; // skip modified code
}
}
}
@ -54,8 +100,8 @@ void StaticAnalyse(void* ptr, u32 size)
enum GroupSearchResult : u32
{
GSR_SUCCESS = 0, // every function from this group has been found
GSR_MISSING = 1, // (error) not every function found
GSR_SUCCESS = 0, // every function from this group has been found once
GSR_MISSING = 1, // (error) some function not found
GSR_EXCESS = 2, // (error) some function found twice or more
};
u32 res = GSR_SUCCESS;
@ -123,9 +169,9 @@ void StaticAnalyse(void* ptr, u32 size)
}
else
{
ConLog.Error("Function group [%s] failed: %s%s", wxString(name, 9).wx_str(),
wxString(res & GSR_MISSING ? "missing;" : "").wx_str(),
wxString(res & GSR_EXCESS ? "excess;" : "").wx_str());
ConLog.Error("Function group [%s] failed:%s%s", wxString(name, 9).wx_str(),
wxString(res & GSR_MISSING ? " missing;" : "").wx_str(),
wxString(res & GSR_EXCESS ? " excess;" : "").wx_str());
}
}
}