//===-- DynamicRegisterInfo.cpp ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "DynamicRegisterInfo.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/ArchSpec.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/StructuredData.h"
#include "lldb/DataFormatters/FormatManager.h"
#include "lldb/Host/StringConvert.h"
using namespace lldb;
using namespace lldb_private;
DynamicRegisterInfo::DynamicRegisterInfo () :
m_regs (),
m_sets (),
m_set_reg_nums (),
m_set_names (),
m_value_regs_map (),
m_invalidate_regs_map (),
m_reg_data_byte_size (0),
m_finalized (false)
{
}
DynamicRegisterInfo::DynamicRegisterInfo(const lldb_private::StructuredData::Dictionary &dict,
const lldb_private::ArchSpec &arch) :
m_regs (),
m_sets (),
m_set_reg_nums (),
m_set_names (),
m_value_regs_map (),
m_invalidate_regs_map (),
m_reg_data_byte_size (0),
m_finalized (false)
{
SetRegisterInfo (dict, arch);
}
DynamicRegisterInfo::~DynamicRegisterInfo ()
{
}
size_t
DynamicRegisterInfo::SetRegisterInfo(const StructuredData::Dictionary &dict, const ArchSpec &arch)
{
assert(!m_finalized);
StructuredData::Array *sets = nullptr;
if (dict.GetValueForKeyAsArray("sets", sets))
{
const uint32_t num_sets = sets->GetSize();
for (uint32_t i=0; i<num_sets; ++i)
{
std::string set_name_str;
ConstString set_name;
if (sets->GetItemAtIndexAsString(i, set_name_str))
set_name.SetCString(set_name_str.c_str());
if (set_name)
{
RegisterSet new_set = { set_name.AsCString(), NULL, 0, NULL };
m_sets.push_back (new_set);
}
else
{
Clear();
printf("error: register sets must have valid names\n");
return 0;
}
}
m_set_reg_nums.resize(m_sets.size());
}
StructuredData::Array *regs = nullptr;
if (!dict.GetValueForKeyAsArray("registers", regs))
return 0;
const uint32_t num_regs = regs->GetSize();
// typedef std::map<std::string, std::vector<std::string> > InvalidateNameMap;
// InvalidateNameMap invalidate_map;
for (uint32_t i = 0; i < num_regs; ++i)
{
StructuredData::Dictionary *reg_info_dict = nullptr;
if (!regs->GetItemAtIndexAsDictionary(i, reg_info_dict))
{
Clear();
printf("error: items in the 'registers' array must be dictionaries\n");
regs->DumpToStdout();
return 0;
}
// { 'name':'rcx' , 'bitsize' : 64, 'offset' : 16, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'ehframe' : 2,
// 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', },
RegisterInfo reg_info;
std::vector<uint32_t> value_regs;
std::vector<uint32_t> invalidate_regs;
memset(®_info, 0, sizeof(reg_info));
ConstString name_val;
ConstString alt_name_val;
if (!reg_info_dict->GetValueForKeyAsString("name", name_val, nullptr))
{
Clear();
printf("error: registers must have valid names and offsets\n");
reg_info_dict->DumpToStdout();
return 0;
}
reg_info.name = name_val.GetCString();
reg_info_dict->GetValueForKeyAsString("alt-name", alt_name_val, nullptr);
reg_info.alt_name = alt_name_val.GetCString();
reg_info_dict->GetValueForKeyAsInteger("offset", reg_info.byte_offset, UINT32_MAX);
const ByteOrder byte_order = arch.GetByteOrder();
if (reg_info.byte_offset == UINT32_MAX)
{
// No offset for this register, see if the register has a value expression
// which indicates this register is part of another register. Value expressions
// are things like "rax[31:0]" which state that the current register's value
// is in a concrete register "rax" in bits 31:0. If there is a value expression
// we can calculate the offset
bool success = false;
std::string slice_str;
if (reg_info_dict->GetValueForKeyAsString("slice", slice_str, nullptr))
{
// Slices use the following format:
// REGNAME[MSBIT:LSBIT]
// REGNAME - name of the register to grab a slice of
// MSBIT - the most significant bit at which the current register value starts at
// LSBIT - the least significant bit at which the current register value ends at
static RegularExpression g_bitfield_regex("([A-Za-z_][A-Za-z0-9_]*)\\[([0-9]+):([0-9]+)\\]");
RegularExpression::Match regex_match(3);
if (g_bitfield_regex.Execute(slice_str.c_str(), ®ex_match))
{
llvm::StringRef reg_name_str;
std::string msbit_str;
std::string lsbit_str;
if (regex_match.GetMatchAtIndex(slice_str.c_str(), 1, reg_name_str) &&
regex_match.GetMatchAtIndex(slice_str.c_str(), 2, msbit_str) &&
regex_match.GetMatchAtIndex(slice_str.c_str(), 3, lsbit_str))
{
const uint32_t msbit = StringConvert::ToUInt32(msbit_str.c_str(), UINT32_MAX);
const uint32_t lsbit = StringConvert::ToUInt32(lsbit_str.c_str(), UINT32_MAX);
if (msbit != UINT32_MAX && lsbit != UINT32_MAX)
{
if (msbit > lsbit)
{
const uint32_t msbyte = msbit / 8;
const uint32_t lsbyte = lsbit / 8;
ConstString containing_reg_name(reg_name_str);
RegisterInfo *containing_reg_info = GetRegisterInfo(containing_reg_name);
if (containing_reg_info)
{
const uint32_t max_bit = containing_reg_info->byte_size * 8;
if (msbit < max_bit && lsbit < max_bit)
{
m_invalidate_regs_map[containing_reg_info->kinds[eRegisterKindLLDB]].push_back(i);
m_value_regs_map[i].push_back(containing_reg_info->kinds[eRegisterKindLLDB]);
m_invalidate_regs_map[i].push_back(containing_reg_info->kinds[eRegisterKindLLDB]);
if (byte_order == eByteOrderLittle)
{
success = true;
reg_info.byte_offset = containing_reg_info->byte_offset + lsbyte;
}
else if (byte_order == eByteOrderBig)
{
success = true;
reg_info.byte_offset = containing_reg_info->byte_offset + msbyte;
}
else
{
assert(!"Invalid byte order");
}
}
else
{
if (msbit > max_bit)
printf("error: msbit (%u) must be less than the bitsize of the register (%u)\n", msbit,
max_bit);
else
printf("error: lsbit (%u) must be less than the bitsize of the register (%u)\n", lsbit,
max_bit);
}
}
else
{
printf("error: invalid concrete register \"%s\"\n", containing_reg_name.GetCString());
}
}
else
{
printf("error: msbit (%u) must be greater than lsbit (%u)\n", msbit, lsbit);
}
}
else
{
printf("error: msbit (%u) and lsbit (%u) must be valid\n", msbit, lsbit);
}
}
else
{
// TODO: print error invalid slice string that doesn't follow the format
printf("error: failed to extract regex matches for parsing the register bitfield regex\n");
}
}
else
{
// TODO: print error invalid slice string that doesn't follow the format
printf("error: failed to match against register bitfield regex\n");
}
}
else
{
StructuredData::Array *composite_reg_list = nullptr;
if (reg_info_dict->GetValueForKeyAsArray("composite", composite_reg_list))
{
const size_t num_composite_regs = composite_reg_list->GetSize();
if (num_composite_regs > 0)
{
uint32_t composite_offset = UINT32_MAX;
for (uint32_t composite_idx = 0; composite_idx < num_composite_regs; ++composite_idx)
{
ConstString composite_reg_name;
if (composite_reg_list->GetItemAtIndexAsString(composite_idx, composite_reg_name, nullptr))
{
RegisterInfo *composite_reg_info = GetRegisterInfo(composite_reg_name);
if (composite_reg_info)
{
composite_offset = std::min(composite_offset, composite_reg_info->byte_offset);
m_value_regs_map[i].push_back(composite_reg_info->kinds[eRegisterKindLLDB]);
m_invalidate_regs_map[composite_reg_info->kinds[eRegisterKindLLDB]].push_back(i);
m_invalidate_regs_map[i].push_back(composite_reg_info->kinds[eRegisterKindLLDB]);
}
else
{
// TODO: print error invalid slice string that doesn't follow the format
printf("error: failed to find composite register by name: \"%s\"\n", composite_reg_name.GetCString());
}
}
else
{
printf("error: 'composite' list value wasn't a python string\n");
}
}
if (composite_offset != UINT32_MAX)
{
reg_info.byte_offset = composite_offset;
success = m_value_regs_map.find(i) != m_value_regs_map.end();
}
else
{
printf("error: 'composite' registers must specify at least one real register\n");
}
}
else
{
printf("error: 'composite' list was empty\n");
}
}
}
if (!success)
{
Clear();
reg_info_dict->DumpToStdout();
return 0;
}
}
int64_t bitsize = 0;
if (!reg_info_dict->GetValueForKeyAsInteger("bitsize", bitsize))
{
Clear();
printf("error: invalid or missing 'bitsize' key/value pair in register dictionary\n");
reg_info_dict->DumpToStdout();
return 0;
}
reg_info.byte_size = bitsize / 8;
std::string format_str;
if (reg_info_dict->GetValueForKeyAsString("format", format_str, nullptr))
{
if (Args::StringToFormat(format_str.c_str(), reg_info.format, NULL).Fail())
{
Clear();
printf("error: invalid 'format' value in register dictionary\n");
reg_info_dict->DumpToStdout();
return 0;
}
}
else
{
reg_info_dict->GetValueForKeyAsInteger("format", reg_info.format, eFormatHex);
}
std::string encoding_str;
if (reg_info_dict->GetValueForKeyAsString("encoding", encoding_str))
reg_info.encoding = Args::StringToEncoding(encoding_str.c_str(), eEncodingUint);
else
reg_info_dict->GetValueForKeyAsInteger("encoding", reg_info.encoding, eEncodingUint);
size_t set = 0;
if (!reg_info_dict->GetValueForKeyAsInteger<size_t>("set", set, -1) || set >= m_sets.size())
{
Clear();
printf("error: invalid 'set' value in register dictionary, valid values are 0 - %i\n", (int)set);
reg_info_dict->DumpToStdout();
return 0;
}
// Fill in the register numbers
reg_info.kinds[lldb::eRegisterKindLLDB] = i;
reg_info.kinds[lldb::eRegisterKindProcessPlugin] = i;
uint32_t eh_frame_regno = LLDB_INVALID_REGNUM;
reg_info_dict->GetValueForKeyAsInteger("gcc", eh_frame_regno, LLDB_INVALID_REGNUM);
if (eh_frame_regno == LLDB_INVALID_REGNUM)
reg_info_dict->GetValueForKeyAsInteger("ehframe", eh_frame_regno, LLDB_INVALID_REGNUM);
reg_info.kinds[lldb::eRegisterKindEHFrame] = eh_frame_regno;
reg_info_dict->GetValueForKeyAsInteger("dwarf", reg_info.kinds[lldb::eRegisterKindDWARF], LLDB_INVALID_REGNUM);
std::string generic_str;
if (reg_info_dict->GetValueForKeyAsString("generic", generic_str))
reg_info.kinds[lldb::eRegisterKindGeneric] = Args::StringToGenericRegister(generic_str.c_str());
else
reg_info_dict->GetValueForKeyAsInteger("generic", reg_info.kinds[lldb::eRegisterKindGeneric], LLDB_INVALID_REGNUM);
// Check if this register invalidates any other register values when it is modified
StructuredData::Array *invalidate_reg_list = nullptr;
if (reg_info_dict->GetValueForKeyAsArray("invalidate-regs", invalidate_reg_list))
{
const size_t num_regs = invalidate_reg_list->GetSize();
if (num_regs > 0)
{
for (uint32_t idx = 0; idx < num_regs; ++idx)
{
ConstString invalidate_reg_name;
uint64_t invalidate_reg_num;
if (invalidate_reg_list->GetItemAtIndexAsString(idx, invalidate_reg_name))
{
RegisterInfo *invalidate_reg_info = GetRegisterInfo(invalidate_reg_name);
if (invalidate_reg_info)
{
m_invalidate_regs_map[i].push_back(invalidate_reg_info->kinds[eRegisterKindLLDB]);
}
else
{
// TODO: print error invalid slice string that doesn't follow the format
printf("error: failed to find a 'invalidate-regs' register for \"%s\" while parsing register \"%s\"\n",
invalidate_reg_name.GetCString(), reg_info.name);
}
}
else if (invalidate_reg_list->GetItemAtIndexAsInteger(idx, invalidate_reg_num))
{
if (invalidate_reg_num != UINT64_MAX)
m_invalidate_regs_map[i].push_back(invalidate_reg_num);
else
printf("error: 'invalidate-regs' list value wasn't a valid integer\n");
}
else
{
printf("error: 'invalidate-regs' list value wasn't a python string or integer\n");
}
}
}
else
{
printf("error: 'invalidate-regs' contained an empty list\n");
}
}
// Calculate the register offset
const size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size;
if (m_reg_data_byte_size < end_reg_offset)
m_reg_data_byte_size = end_reg_offset;
m_regs.push_back(reg_info);
m_set_reg_nums[set].push_back(i);
}
Finalize(arch);
return m_regs.size();
}
void
DynamicRegisterInfo::AddRegister (RegisterInfo ®_info,
ConstString ®_name,
ConstString ®_alt_name,
ConstString &set_name)
{
assert(!m_finalized);
const uint32_t reg_num = m_regs.size();
reg_info.name = reg_name.AsCString();
assert (reg_info.name);
reg_info.alt_name = reg_alt_name.AsCString(NULL);
uint32_t i;
if (reg_info.value_regs)
{
for (i=0; reg_info.value_regs[i] != LLDB_INVALID_REGNUM; ++i)
m_value_regs_map[reg_num].push_back(reg_info.value_regs[i]);
}
if (reg_info.invalidate_regs)
{
for (i=0; reg_info.invalidate_regs[i] != LLDB_INVALID_REGNUM; ++i)
m_invalidate_regs_map[reg_num].push_back(reg_info.invalidate_regs[i]);
}
m_regs.push_back (reg_info);
uint32_t set = GetRegisterSetIndexByName (set_name, true);
assert (set < m_sets.size());
assert (set < m_set_reg_nums.size());
assert (set < m_set_names.size());
m_set_reg_nums[set].push_back(reg_num);
size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size;
if (m_reg_data_byte_size < end_reg_offset)
m_reg_data_byte_size = end_reg_offset;
}
void
DynamicRegisterInfo::Finalize (const ArchSpec &arch)
{
if (m_finalized)
return;
m_finalized = true;
const size_t num_sets = m_sets.size();
for (size_t set = 0; set < num_sets; ++set)
{
assert (m_sets.size() == m_set_reg_nums.size());
m_sets[set].num_registers = m_set_reg_nums[set].size();
m_sets[set].registers = &m_set_reg_nums[set][0];
}
// sort and unique all value registers and make sure each is terminated with
// LLDB_INVALID_REGNUM
for (reg_to_regs_map::iterator pos = m_value_regs_map.begin(), end = m_value_regs_map.end();
pos != end;
++pos)
{
if (pos->second.size() > 1)
{
std::sort (pos->second.begin(), pos->second.end());
reg_num_collection::iterator unique_end = std::unique (pos->second.begin(), pos->second.end());
if (unique_end != pos->second.end())
pos->second.erase(unique_end, pos->second.end());
}
assert (!pos->second.empty());
if (pos->second.back() != LLDB_INVALID_REGNUM)
pos->second.push_back(LLDB_INVALID_REGNUM);
}
// Now update all value_regs with each register info as needed
const size_t num_regs = m_regs.size();
for (size_t i=0; i<num_regs; ++i)
{
if (m_value_regs_map.find(i) != m_value_regs_map.end())
m_regs[i].value_regs = m_value_regs_map[i].data();
else
m_regs[i].value_regs = NULL;
}
// Expand all invalidation dependencies
for (reg_to_regs_map::iterator pos = m_invalidate_regs_map.begin(), end = m_invalidate_regs_map.end();
pos != end;
++pos)
{
const uint32_t reg_num = pos->first;
if (m_regs[reg_num].value_regs)
{
reg_num_collection extra_invalid_regs;
for (const uint32_t invalidate_reg_num : pos->second)
{
reg_to_regs_map::iterator invalidate_pos = m_invalidate_regs_map.find(invalidate_reg_num);
if (invalidate_pos != m_invalidate_regs_map.end())
{
for (const uint32_t concrete_invalidate_reg_num : invalidate_pos->second)
{
if (concrete_invalidate_reg_num != reg_num)
extra_invalid_regs.push_back(concrete_invalidate_reg_num);
}
}
}
pos->second.insert(pos->second.end(), extra_invalid_regs.begin(), extra_invalid_regs.end());
}
}
// sort and unique all invalidate registers and make sure each is terminated with
// LLDB_INVALID_REGNUM
for (reg_to_regs_map::iterator pos = m_invalidate_regs_map.begin(), end = m_invalidate_regs_map.end();
pos != end;
++pos)
{
if (pos->second.size() > 1)
{
std::sort (pos->second.begin(), pos->second.end());
reg_num_collection::iterator unique_end = std::unique (pos->second.begin(), pos->second.end());
if (unique_end != pos->second.end())
pos->second.erase(unique_end, pos->second.end());
}
assert (!pos->second.empty());
if (pos->second.back() != LLDB_INVALID_REGNUM)
pos->second.push_back(LLDB_INVALID_REGNUM);
}
// Now update all invalidate_regs with each register info as needed
for (size_t i=0; i<num_regs; ++i)
{
if (m_invalidate_regs_map.find(i) != m_invalidate_regs_map.end())
m_regs[i].invalidate_regs = m_invalidate_regs_map[i].data();
else
m_regs[i].invalidate_regs = NULL;
}
// Check if we need to automatically set the generic registers in case
// they weren't set
bool generic_regs_specified = false;
for (const auto ®: m_regs)
{
if (reg.kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM)
{
generic_regs_specified = true;
break;
}
}
if (!generic_regs_specified)
{
switch (arch.GetMachine())
{
case llvm::Triple::aarch64:
case llvm::Triple::aarch64_be:
for (auto ®: m_regs)
{
if (strcmp(reg.name, "pc") == 0)
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
else if ((strcmp(reg.name, "fp") == 0) || (strcmp(reg.name, "x29") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
else if ((strcmp(reg.name, "lr") == 0) || (strcmp(reg.name, "x30") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA;
else if ((strcmp(reg.name, "sp") == 0) || (strcmp(reg.name, "x31") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
else if (strcmp(reg.name, "cpsr") == 0)
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
}
break;
case llvm::Triple::arm:
case llvm::Triple::armeb:
case llvm::Triple::thumb:
case llvm::Triple::thumbeb:
for (auto ®: m_regs)
{
if ((strcmp(reg.name, "pc") == 0) || (strcmp(reg.name, "r15") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
else if ((strcmp(reg.name, "sp") == 0) || (strcmp(reg.name, "r13") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
else if ((strcmp(reg.name, "lr") == 0) || (strcmp(reg.name, "r14") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA;
else if ((strcmp(reg.name, "r7") == 0) && arch.GetTriple().getVendor() == llvm::Triple::Apple)
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
else if ((strcmp(reg.name, "r11") == 0) && arch.GetTriple().getVendor() != llvm::Triple::Apple)
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
else if (strcmp(reg.name, "fp") == 0)
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
else if (strcmp(reg.name, "cpsr") == 0)
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
}
break;
case llvm::Triple::x86:
for (auto ®: m_regs)
{
if ((strcmp(reg.name, "eip") == 0) || (strcmp(reg.name, "pc") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
else if ((strcmp(reg.name, "esp") == 0) || (strcmp(reg.name, "sp") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
else if ((strcmp(reg.name, "ebp") == 0) || (strcmp(reg.name, "fp") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
else if ((strcmp(reg.name, "eflags") == 0) || (strcmp(reg.name, "flags") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
}
break;
case llvm::Triple::x86_64:
for (auto ®: m_regs)
{
if ((strcmp(reg.name, "rip") == 0) || (strcmp(reg.name, "pc") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
else if ((strcmp(reg.name, "rsp") == 0) || (strcmp(reg.name, "sp") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
else if ((strcmp(reg.name, "rbp") == 0) || (strcmp(reg.name, "fp") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
else if ((strcmp(reg.name, "rflags") == 0) || (strcmp(reg.name, "flags") == 0))
reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
}
break;
default:
break;
}
}
}
size_t
DynamicRegisterInfo::GetNumRegisters() const
{
return m_regs.size();
}
size_t
DynamicRegisterInfo::GetNumRegisterSets() const
{
return m_sets.size();
}
size_t
DynamicRegisterInfo::GetRegisterDataByteSize() const
{
return m_reg_data_byte_size;
}
const RegisterInfo *
DynamicRegisterInfo::GetRegisterInfoAtIndex (uint32_t i) const
{
if (i < m_regs.size())
return &m_regs[i];
return NULL;
}
const RegisterSet *
DynamicRegisterInfo::GetRegisterSet (uint32_t i) const
{
if (i < m_sets.size())
return &m_sets[i];
return NULL;
}
uint32_t
DynamicRegisterInfo::GetRegisterSetIndexByName (ConstString &set_name, bool can_create)
{
name_collection::iterator pos, end = m_set_names.end();
for (pos = m_set_names.begin(); pos != end; ++pos)
{
if (*pos == set_name)
return std::distance (m_set_names.begin(), pos);
}
m_set_names.push_back(set_name);
m_set_reg_nums.resize(m_set_reg_nums.size()+1);
RegisterSet new_set = { set_name.AsCString(), NULL, 0, NULL };
m_sets.push_back (new_set);
return m_sets.size() - 1;
}
uint32_t
DynamicRegisterInfo::ConvertRegisterKindToRegisterNumber (uint32_t kind, uint32_t num) const
{
reg_collection::const_iterator pos, end = m_regs.end();
for (pos = m_regs.begin(); pos != end; ++pos)
{
if (pos->kinds[kind] == num)
return std::distance (m_regs.begin(), pos);
}
return LLDB_INVALID_REGNUM;
}
void
DynamicRegisterInfo::Clear()
{
m_regs.clear();
m_sets.clear();
m_set_reg_nums.clear();
m_set_names.clear();
m_value_regs_map.clear();
m_invalidate_regs_map.clear();
m_reg_data_byte_size = 0;
m_finalized = false;
}
void
DynamicRegisterInfo::Dump () const
{
StreamFile s(stdout, false);
const size_t num_regs = m_regs.size();
s.Printf("%p: DynamicRegisterInfo contains %" PRIu64 " registers:\n",
static_cast<const void*>(this), static_cast<uint64_t>(num_regs));
for (size_t i=0; i<num_regs; ++i)
{
s.Printf("[%3" PRIu64 "] name = %-10s", (uint64_t)i, m_regs[i].name);
s.Printf(", size = %2u, offset = %4u, encoding = %u, format = %-10s",
m_regs[i].byte_size,
m_regs[i].byte_offset,
m_regs[i].encoding,
FormatManager::GetFormatAsCString (m_regs[i].format));
if (m_regs[i].kinds[eRegisterKindProcessPlugin] != LLDB_INVALID_REGNUM)
s.Printf(", process plugin = %3u", m_regs[i].kinds[eRegisterKindProcessPlugin]);
if (m_regs[i].kinds[eRegisterKindDWARF] != LLDB_INVALID_REGNUM)
s.Printf(", dwarf = %3u", m_regs[i].kinds[eRegisterKindDWARF]);
if (m_regs[i].kinds[eRegisterKindEHFrame] != LLDB_INVALID_REGNUM)
s.Printf(", ehframe = %3u", m_regs[i].kinds[eRegisterKindEHFrame]);
if (m_regs[i].kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM)
s.Printf(", generic = %3u", m_regs[i].kinds[eRegisterKindGeneric]);
if (m_regs[i].alt_name)
s.Printf(", alt-name = %s", m_regs[i].alt_name);
if (m_regs[i].value_regs)
{
s.Printf(", value_regs = [ ");
for (size_t j=0; m_regs[i].value_regs[j] != LLDB_INVALID_REGNUM; ++j)
{
s.Printf("%s ", m_regs[m_regs[i].value_regs[j]].name);
}
s.Printf("]");
}
if (m_regs[i].invalidate_regs)
{
s.Printf(", invalidate_regs = [ ");
for (size_t j=0; m_regs[i].invalidate_regs[j] != LLDB_INVALID_REGNUM; ++j)
{
s.Printf("%s ", m_regs[m_regs[i].invalidate_regs[j]].name);
}
s.Printf("]");
}
s.EOL();
}
const size_t num_sets = m_sets.size();
s.Printf("%p: DynamicRegisterInfo contains %" PRIu64 " register sets:\n",
static_cast<const void*>(this), static_cast<uint64_t>(num_sets));
for (size_t i=0; i<num_sets; ++i)
{
s.Printf("set[%" PRIu64 "] name = %s, regs = [", (uint64_t)i, m_sets[i].name);
for (size_t idx=0; idx<m_sets[i].num_registers; ++idx)
{
s.Printf("%s ", m_regs[m_sets[i].registers[idx]].name);
}
s.Printf("]\n");
}
}
lldb_private::RegisterInfo *
DynamicRegisterInfo::GetRegisterInfo (const lldb_private::ConstString ®_name)
{
for (auto ®_info : m_regs)
{
// We can use pointer comparison since we used a ConstString to set
// the "name" member in AddRegister()
if (reg_info.name == reg_name.GetCString())
{
return ®_info;
}
}
return NULL;
}