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Object: Add Archive::getNumberOfSymbols().

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Add a function that returns number of symbols in archive headers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238213 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama
2015-05-26 16:20:40 +00:00
parent 8352b74577
commit 5a22e848da
2 changed files with 14 additions and 14 deletions
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1
include/llvm/Object/Archive.h
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@@ -207,6 +207,7 @@ public:
bool hasSymbolTable() const; bool hasSymbolTable() const;
child_iterator getSymbolTableChild() const { return SymbolTable; } child_iterator getSymbolTableChild() const { return SymbolTable; }
uint32_t getNumberOfSymbols() const;
private: private:
child_iterator SymbolTable; child_iterator SymbolTable;

21
lib/Object/Archive.cpp
View File

@@ -487,22 +487,21 @@ Archive::symbol_iterator Archive::symbol_begin() const {
Archive::symbol_iterator Archive::symbol_end() const { Archive::symbol_iterator Archive::symbol_end() const {
if (!hasSymbolTable()) if (!hasSymbolTable())
return symbol_iterator(Symbol(this, 0, 0)); return symbol_iterator(Symbol(this, 0, 0));
return symbol_iterator(Symbol(this, getNumberOfSymbols(), 0));
}
uint32_t Archive::getNumberOfSymbols() const {
const char *buf = SymbolTable->getBuffer().begin(); const char *buf = SymbolTable->getBuffer().begin();
uint32_t symbol_count = 0; if (kind() == K_GNU)
if (kind() == K_GNU) { return read32be(buf);
symbol_count = read32be(buf); if (kind() == K_MIPS64)
} else if (kind() == K_MIPS64) { return read64be(buf);
symbol_count = read64be(buf); if (kind() == K_BSD)
} else if (kind() == K_BSD) { return read32le(buf) / 8;
symbol_count = read32le(buf) / 8;
} else {
uint32_t member_count = 0; uint32_t member_count = 0;
member_count = read32le(buf); member_count = read32le(buf);
buf += 4 + (member_count * 4); // Skip offsets. buf += 4 + (member_count * 4); // Skip offsets.
symbol_count = read32le(buf); return read32le(buf);
}
return symbol_iterator(Symbol(this, symbol_count, 0));
} }
Archive::child_iterator Archive::findSym(StringRef name) const { Archive::child_iterator Archive::findSym(StringRef name) const {