Fennix/Kernel
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Update kernel

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This commit is contained in:
EnderIce2
2024-01-19 06:47:42 +02:00
parent fd15592608
commit 96daa43d38
282 changed files with 25486 additions and 15700 deletions
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84
core/symbols.cpp
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@ -25,20 +25,69 @@
namespace SymbolResolver
{
const NIF char *Symbols::GetSymbolFromAddress(uintptr_t Address)
const NIF char *Symbols::GetSymbol(uintptr_t Address)
{
SymbolTable Result{};
foreach (auto tbl in this->SymTable)
if (this->SymbolTableExists == false)
{
if (tbl.Address <= Address &&
tbl.Address > Result.Address)
Result = tbl;
debug("Symbol table does not exist");
if (this->SymTable.size() > 0)
{
debug("SymbolTableExists is false but SymTable.size() is %d",
this->SymTable.size());
}
return Result.FunctionName;
}
// debug("Address: %#lx, Function: %s",
// Address, Result.FunctionName);
std::vector<SymbolTable> rSymTable = this->SymTable;
rSymTable.reverse();
foreach (auto st in rSymTable)
{
if (unlikely(st.Address <= Address &&
st.Address > Result.Address))
{
Result = st;
break;
}
}
// debug("Symbol %#lx: %s", Result.Address, Result.FunctionName);
return Result.FunctionName;
}
uintptr_t Symbols::GetSymbol(const char *Name)
{
SymbolTable Result{};
if (this->SymbolTableExists == false)
{
debug("Symbol table does not exist");
if (this->SymTable.size() > 0)
{
debug("SymbolTableExists is false but SymTable.size() is %d",
this->SymTable.size());
}
return Result.Address;
}
std::vector<SymbolTable> rSymTable = this->SymTable;
rSymTable.reverse();
foreach (auto st in rSymTable)
{
if (unlikely(strcmp(st.FunctionName, Name) == 0))
{
Result = st;
break;
}
}
// debug("Symbol %#lx: %s", Result.Address, Result.FunctionName);
return Result.Address;
}
void Symbols::AddSymbol(uintptr_t Address, const char *Name)
{
SymbolTable tbl{};
@ -121,11 +170,11 @@ namespace SymbolResolver
TotalEntries, TO_KiB(TotalEntries * sizeof(SymbolTable)));
Elf_Sym *sym;
const char *name;
Memory::Virtual vma = Memory::Virtual();
Memory::Virtual vmm;
for (size_t i = 0, g = TotalEntries; i < g; i++)
{
sym = &Symbols[i];
if (!vma.Check(sym))
if (!vmm.Check(sym))
{
error("Symbol %d has invalid address %#lx!",
i, sym);
@ -137,7 +186,7 @@ namespace SymbolResolver
}
name = (const char *)&StringAddress[Symbols[i].st_name];
if (!vma.Check((void *)name))
if (!vmm.Check((void *)name))
{
error("String %d has invalid address %#lx!",
i, name);
@ -168,7 +217,8 @@ namespace SymbolResolver
{
/* FIXME: Get only the required headers instead of the whole file */
if (ImageAddress == 0 || Memory::Virtual().Check((void *)ImageAddress) == false)
if (ImageAddress == 0 ||
Memory::Virtual().Check((void *)ImageAddress) == false)
{
error("Invalid image address %#lx", ImageAddress);
return;
@ -261,17 +311,27 @@ namespace SymbolResolver
// this->SymTable[i].FunctionName);
}
}
if (this->SymbolTableExists)
{
debug("Symbol table exists, %d entries (%ld KiB)",
this->SymTable.size(), TO_KiB(this->SymTable.size() * sizeof(SymbolTable)));
}
}
Symbols::Symbols(uintptr_t ImageAddress)
{
debug("+ %#lx", this);
this->Image = (void *)ImageAddress;
this->AppendSymbols(ImageAddress);
}
Symbols::~Symbols()
{
for (auto tbl : this->SymTable)
debug("- %#lx", this);
debug("Freeing %d symbols",
this->SymTable.size());
foreach (auto tbl in this->SymTable)
delete[] tbl.FunctionName;
}
}