DumpRegisterValue.cpp
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//===-- DumpRegisterValue.cpp -----------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/DumpRegisterValue.h"
#include "lldb/Core/DumpDataExtractor.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/RegisterValue.h"
#include "lldb/Utility/StreamString.h"
#include "lldb/lldb-private-types.h"
using namespace lldb;
bool lldb_private::DumpRegisterValue(const RegisterValue ®_val, Stream *s,
const RegisterInfo *reg_info,
bool prefix_with_name,
bool prefix_with_alt_name, Format format,
uint32_t reg_name_right_align_at) {
DataExtractor data;
if (reg_val.GetData(data)) {
bool name_printed = false;
// For simplicity, alignment of the register name printing applies only in
// the most common case where:
//
// prefix_with_name^prefix_with_alt_name is true
//
StreamString format_string;
if (reg_name_right_align_at && (prefix_with_name ^ prefix_with_alt_name))
format_string.Printf("%%%us", reg_name_right_align_at);
else
format_string.Printf("%%s");
std::string fmt = format_string.GetString();
if (prefix_with_name) {
if (reg_info->name) {
s->Printf(fmt.c_str(), reg_info->name);
name_printed = true;
} else if (reg_info->alt_name) {
s->Printf(fmt.c_str(), reg_info->alt_name);
prefix_with_alt_name = false;
name_printed = true;
}
}
if (prefix_with_alt_name) {
if (name_printed)
s->PutChar('/');
if (reg_info->alt_name) {
s->Printf(fmt.c_str(), reg_info->alt_name);
name_printed = true;
} else if (!name_printed) {
// No alternate name but we were asked to display a name, so show the
// main name
s->Printf(fmt.c_str(), reg_info->name);
name_printed = true;
}
}
if (name_printed)
s->PutCString(" = ");
if (format == eFormatDefault)
format = reg_info->format;
DumpDataExtractor(data, s,
0, // Offset in "data"
format, // Format to use when dumping
reg_info->byte_size, // item_byte_size
1, // item_count
UINT32_MAX, // num_per_line
LLDB_INVALID_ADDRESS, // base_addr
0, // item_bit_size
0); // item_bit_offset
return true;
}
return false;
}