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Code Issues Releases Wiki Activity

Roughed in alias block option

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This commit is contained in:
caheckman 2020-02-24 09:23:05 -05:00
parent e4084b40ee
commit 04b4011166
5 changed files with 51 additions and 2 deletions
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14
Ghidra/Features/Decompiler/src/decompile/cpp/varmap.cc
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@ -1084,6 +1084,7 @@ void ScopeLocal::markUnaliased(const vector<uintb> &alias)
if (rangemap == (EntryMap *)0) return;
list<SymbolEntry>::iterator iter,enditer;
int4 alias_block_level = glb->alias_block_level;
bool aliason = false;
uintb curalias=0;
int4 i=0;
@ -1107,8 +1108,17 @@ void ScopeLocal::markUnaliased(const vector<uintb> &alias)
aliason = false;
if (!aliason)
symbol->getScope()->setAttribute(symbol,Varnode::nolocalalias);
if (symbol->isTypeLocked())
aliason = false;
if (symbol->isTypeLocked() && alias_block_level != 0) {
if (alias_block_level == 3)
aliason = false; // For this level, all locked data-types block aliases
else {
type_metatype meta = symbol->getType()->getMetatype();
if (meta == TYPE_STRUCT)
aliason = false; // Only structures block aliases
else if (meta == TYPE_ARRAY && alias_block_level > 1)
aliason = false; // Only arrays (and structures) block aliases
}
}
}
}
}