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OcMachoLib: Retrieve symbol type by name.

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This commit is contained in:
Download-Fritz 2018-11-09 18:50:20 +01:00
parent d924a62b4e
commit 619e30c5ba
2 changed files with 60 additions and 71 deletions
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42
Include/Library/OcMachoLib.h
View File

@ -366,7 +366,7 @@ MachoRelocateSymbol64 (
**/
BOOLEAN
MachoIsSymbolNamePureVirtual (
MachoSymbolNameIsPureVirtual (
IN CONST CHAR8 *Name
);
@ -377,34 +377,34 @@ MachoIsSymbolNamePureVirtual (
**/
BOOLEAN
MachoIsSymbolNamePadslot (
MachoSymbolNameIsPadslot (
IN CONST CHAR8 *Name
);
/**
Returns whether Symbol defines a Super Metaclass Pointer.
Returns whether SymbolName defines a Super Metaclass Pointer.
@param[in,out] Context Context of the Mach-O.
@param[in] Symbol The symbol to check.
@param[in,out] Context Context of the Mach-O.
@param[in] SymbolName The symbol name to check.
**/
BOOLEAN
MachoSymbolIsSmcp64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST MACH_NLIST_64 *Symbol
MachoSymbolNameIsSmcp64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST CHAR8 *SymbolName
);
/**
Returns whether Symbol defines a Super Metaclass Pointer.
Returns whether SymbolName defines a Super Metaclass Pointer.
@param[in,out] Context Context of the Mach-O.
@param[in] Symbol The symbol to check.
@param[in,out] Context Context of the Mach-O.
@param[in] SymbolName The symbol name to check.
**/
BOOLEAN
MachoSymbolIsMetaclassPointer64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST MACH_NLIST_64 *Symbol
MachoSymbolNameIsMetaclassPointer64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST CHAR8 *SymbolName
);
/**
@ -525,16 +525,16 @@ MachoGetFinalSymbolNameFromClassName (
);
/**
Returns whether Symbol defines a VTable.
Returns whether SymbolName defines a VTable.
@param[in,out] Context Context of the Mach-O.
@param[in] Symbol The symbol to check.
@param[in,out] Context Context of the Mach-O.
@param[in] SymbolName The symbol name to check.
**/
BOOLEAN
MachoSymbolIsVtable64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST MACH_NLIST_64 *Symbol
MachoSymbolNameIsVtable64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST CHAR8 *SymbolName
);
/**
@ -544,7 +544,7 @@ MachoSymbolIsVtable64 (
**/
BOOLEAN
MachoIsSymbolNameCxx (
MachoSymbolNameIsCxx (
IN CONST CHAR8 *Name
);

89
Library/OcMachoLib/CxxSymbols.c
View File

@ -48,7 +48,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
BOOLEAN
MachoIsSymbolNamePureVirtual (
MachoSymbolNameIsPureVirtual (
IN CONST CHAR8 *Name
)
{
@ -63,7 +63,7 @@ MachoIsSymbolNamePureVirtual (
**/
BOOLEAN
MachoIsSymbolNamePadslot (
MachoSymbolNameIsPadslot (
IN CONST CHAR8 *Name
)
{
@ -72,38 +72,33 @@ MachoIsSymbolNamePadslot (
}
/**
Returns whether Symbol defines a Super Metaclass Pointer.
Returns whether SymbolName defines a Super Metaclass Pointer.
@param[in,out] Context Context of the Mach-O.
@param[in] Symbol The symbol to check.
@param[in,out] Context Context of the Mach-O.
@param[in] SymbolName The symbol name to check.
**/
BOOLEAN
MachoSymbolIsSmcp64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST MACH_NLIST_64 *Symbol
MachoSymbolNameIsSmcp64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST CHAR8 *SymbolName
)
{
CONST CHAR8 *Name;
CONST CHAR8 *Suffix;
ASSERT (Context != NULL);
ASSERT (Symbol != NULL);
ASSERT (Context->StringTable != NULL);
Name = MachoGetSymbolName64 (Context, Symbol);
ASSERT (SymbolName != NULL);
//
// Verify the symbol has...
// 1) The C++ prefix.
// 2) The SMCP suffix.
// 3) At least one character between the prefix and the suffix.
//
Suffix = AsciiStrStr (Name, SMCP_TOKEN);
Suffix = AsciiStrStr (SymbolName, SMCP_TOKEN);
if ((Suffix == NULL)
|| (AsciiStrnCmp (Name, OSOBJ_PREFIX, L_STR_LEN (OSOBJ_PREFIX)) != 0)
|| ((Suffix - Name) <= L_STR_LEN (OSOBJ_PREFIX))) {
|| (AsciiStrnCmp (SymbolName, OSOBJ_PREFIX, L_STR_LEN (OSOBJ_PREFIX)) != 0)
|| ((Suffix - SymbolName) <= L_STR_LEN (OSOBJ_PREFIX))) {
return FALSE;
}
@ -111,38 +106,33 @@ MachoSymbolIsSmcp64 (
}
/**
Returns whether Symbol defines a Super Metaclass Pointer.
Returns whether SymbolName defines a Super Metaclass Pointer.
@param[in,out] Context Context of the Mach-O.
@param[in] Symbol The symbol to check.
@param[in,out] Context Context of the Mach-O.
@param[in] SymbolName The symbol name to check.
**/
BOOLEAN
MachoSymbolIsMetaclassPointer64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST MACH_NLIST_64 *Symbol
MachoSymbolNameIsMetaclassPointer64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST CHAR8 *SymbolName
)
{
CONST CHAR8 *Name;
CONST CHAR8 *Suffix;
ASSERT (Context != NULL);
ASSERT (Symbol != NULL);
ASSERT (Context->StringTable != NULL);
Name = MachoGetSymbolName64 (Context, Symbol);
ASSERT (SymbolName != NULL);
//
// Verify the symbol has...
// 1) The C++ prefix.
// 2) The MetaClass suffix.
// 3) At least one character between the prefix and the suffix.
//
Suffix = AsciiStrStr (Name, METACLASS_TOKEN);
Suffix = AsciiStrStr (SymbolName, METACLASS_TOKEN);
if ((Suffix == NULL)
|| (AsciiStrnCmp (Name, OSOBJ_PREFIX, L_STR_LEN (OSOBJ_PREFIX)) != 0)
|| ((Suffix - Name) <= L_STR_LEN (OSOBJ_PREFIX))) {
|| (AsciiStrnCmp (SymbolName, OSOBJ_PREFIX, L_STR_LEN (OSOBJ_PREFIX)) != 0)
|| ((Suffix - SymbolName) <= L_STR_LEN (OSOBJ_PREFIX))) {
return FALSE;
}
@ -182,12 +172,13 @@ MachoGetClassNameFromSuperMetaClassPointer (
ASSERT (Context->StringTable != NULL);
Result = MachoSymbolIsSmcp64 (Context, SmcpSymbol);
SmcpName = MachoGetSymbolName64 (Context, SmcpSymbol);
Result = MachoSymbolNameIsSmcp64 (Context, SmcpName);
if (!Result) {
return FALSE;
}
SmcpName = MachoGetSymbolName64 (Context, SmcpSymbol);
PrefixSize = L_STR_SIZE_NT (OSOBJ_PREFIX);
StringSize = (AsciiStrLen (SmcpName) * sizeof (*SmcpName));
SuffixSize = L_STR_SIZE_NT (SMCP_TOKEN);
@ -306,12 +297,13 @@ MachoGetClassNameFromMetaClassPointer (
ASSERT (Context->StringTable != NULL);
Result = MachoSymbolIsMetaclassPointer64 (Context, MetaClassPtrSymbol);
MetaClassName = MachoGetSymbolName64 (Context, MetaClassPtrSymbol);
Result = MachoSymbolNameIsMetaclassPointer64 (Context, MetaClassName);
if (!Result) {
return FALSE;
}
MetaClassName = MachoGetSymbolName64 (Context, MetaClassPtrSymbol);
PrefixSize = L_STR_SIZE_NT (OSOBJ_PREFIX);
StringSize = (AsciiStrLen (MetaClassName) * sizeof (*MetaClassName));
SuffixSize = L_STR_SIZE_NT (METACLASS_TOKEN);
@ -489,30 +481,27 @@ MachoGetFinalSymbolNameFromClassName (
}
/**
Returns whether Symbol defines a VTable.
Returns whether SymbolName defines a VTable.
@param[in,out] Context Conteyt of the Mach-O.
@param[in] Symbol The symbol to check.
@param[in,out] Context Context of the Mach-O.
@param[in] SymbolName The symbol name to check.
**/
BOOLEAN
MachoSymbolIsVtable64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST MACH_NLIST_64 *Symbol
MachoSymbolNameIsVtable64 (
IN OUT OC_MACHO_CONTEXT *Context,
IN CONST CHAR8 *SymbolName
)
{
CONST CHAR8 *Name;
INTN Result;
ASSERT (Context != NULL);
ASSERT (Symbol != NULL);
ASSERT (Context->StringTable != NULL);
Name = MachoGetSymbolName64 (Context, Symbol);
ASSERT (SymbolName != NULL);
//
// Implicitely checks for METACLASS_VTABLE_PREFIX.
//
return (AsciiStrCmp (Name, VTABLE_PREFIX) == 0);
Result = AsciiStrnCmp (SymbolName, VTABLE_PREFIX, L_STR_LEN (VTABLE_PREFIX));
return (Result == 0);
}
/**
@ -522,7 +511,7 @@ MachoSymbolIsVtable64 (
**/
BOOLEAN
MachoIsSymbolNameCxx (
MachoSymbolNameIsCxx (
IN CONST CHAR8 *Name
)
{