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[Objdump] Removing size limit on DumpBytes and changing to range based for loop.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232654 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Colin LeMahieu
2015-03-18 18:41:23 +00:00
parent 8b41add6ca
commit aecb4b465d
1 changed files with 6 additions and 19 deletions
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25
tools/llvm-objdump/llvm-objdump.cpp
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@@ -196,28 +196,15 @@ static const Target *getTarget(const ObjectFile *Obj = nullptr) {
void llvm::DumpBytes(StringRef bytes) { void llvm::DumpBytes(StringRef bytes) {
static const char hex_rep[] = "0123456789abcdef"; static const char hex_rep[] = "0123456789abcdef";
// FIXME: The real way to do this is to figure out the longest instruction SmallString<64> output;
// and align to that size before printing. I'll fix this when I get
// around to outputting relocations.
// 15 is the longest x86 instruction
// 3 is for the hex rep of a byte + a space.
// 1 is for the null terminator.
enum { OutputSize = (15 * 3) + 1 };
char output[OutputSize];
assert(bytes.size() <= 15 for (char i: bytes) {
&& "DumpBytes only supports instructions of up to 15 bytes"); output.push_back(hex_rep[(i & 0xF0) >> 4]);
memset(output, ' ', sizeof(output)); output.push_back(hex_rep[i & 0xF]);
unsigned index = 0; output.push_back(' ');
for (StringRef::iterator i = bytes.begin(),
e = bytes.end(); i != e; ++i) {
output[index] = hex_rep[(*i & 0xF0) >> 4];
output[index + 1] = hex_rep[*i & 0xF];
index += 3;
} }
output[sizeof(output) - 1] = 0; outs() << output.c_str();
outs() << output;
} }
bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) { bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {