nitesh.jain removed rL LLVM as the repository for this revision.
nitesh.jain updated this revision to Diff 63224.
nitesh.jain added a comment.
Added lldb_private::RegisterInfo * DynamicRegisterInfo::GetRegisterInfoAtIndex
(uint32_t i)
http://reviews.llvm.org/D20357
Files:
include/lldb/lldb-private-types.h
source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
source/Plugins/Process/Utility/DynamicRegisterInfo.h
source/Plugins/Process/Utility/RegisterInfos_mips.h
source/Plugins/Process/Utility/RegisterInfos_mips64.h
source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
Index: source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
===================================================================
--- source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
+++ source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -539,6 +539,7 @@
ConstString set_name;
std::vector<uint32_t> value_regs;
std::vector<uint32_t> invalidate_regs;
+ uint8_t dwarf_opcode[8];
RegisterInfo reg_info = { NULL, // Name
NULL, // Alt name
0, // byte size
@@ -553,7 +554,9 @@
reg_num // native register number
},
NULL,
- NULL
+ NULL,
+ NULL,
+ 0 // dynamic_size default value
};
while (response.GetNameColonValue(name, value))
@@ -638,6 +641,22 @@
{
SplitCommaSeparatedRegisterNumberString(value, invalidate_regs, 16);
}
+ else if (name.compare("dynamic_size_dwarf_len") == 0)
+ {
+ reg_info.dynamic_size_dwarf_len = StringConvert::ToUInt32(value.c_str(), 0, 0);
+ }
+ else if (name.compare("dynamic_size_dwarf_expr_bytes") == 0)
+ {
+ uint32_t dwarf_len = reg_info.dynamic_size_dwarf_len;
+ assert(dwarf_len > 0);
+ StringExtractor name_extractor;
+
+ // Swap "value" over into "name_extractor"
+ name_extractor.GetStringRef().swap(value);
+ uint32_t ret_val = name_extractor.GetHexBytesAvail (dwarf_opcode, dwarf_len);
+ assert(dwarf_len == ret_val);
+ reg_info.dynamic_size_dwarf_expr_bytes = dwarf_opcode;
+ }
}
reg_info.byte_offset = reg_offset;
@@ -4373,6 +4392,7 @@
ConstString set_name;
std::vector<uint32_t> value_regs;
std::vector<uint32_t> invalidate_regs;
+ uint8_t dwarf_opcode[8];
bool encoding_set = false;
bool format_set = false;
RegisterInfo reg_info = { NULL, // Name
@@ -4389,10 +4409,12 @@
cur_reg_num // native register number
},
NULL,
- NULL
+ NULL,
+ NULL,
+ 0
};
- reg_node.ForEachAttribute([&target_info, &gdb_group, &gdb_type, ®_name, &alt_name, &set_name, &value_regs, &invalidate_regs, &encoding_set, &format_set, ®_info, &cur_reg_num, ®_offset](const llvm::StringRef &name, const llvm::StringRef &value) -> bool {
+ reg_node.ForEachAttribute([&target_info, &gdb_group, &gdb_type, ®_name, &alt_name, &set_name, &value_regs, &invalidate_regs, &encoding_set, &format_set, ®_info, &cur_reg_num, ®_offset, &dwarf_opcode](const llvm::StringRef &name, const llvm::StringRef &value) -> bool {
if (name == "name")
{
reg_name.SetString(value);
@@ -4480,6 +4502,21 @@
{
SplitCommaSeparatedRegisterNumberString(value, invalidate_regs, 0);
}
+ else if (name == "dynamic_size_dwarf_len")
+ {
+ reg_info.dynamic_size_dwarf_len = StringConvert::ToUInt32 (value.data(), 0, 0);
+ }
+ else if (name == "dynamic_size_dwarf_expr_bytes")
+ {
+ StringExtractor name_extractor;
+ uint32_t dwarf_len = reg_info.dynamic_size_dwarf_len;
+ assert(dwarf_len > 0);
+ std::string opcode_string = value.str();
+ name_extractor.GetStringRef().swap(opcode_string);
+ uint32_t ret_val = name_extractor.GetHexBytesAvail (dwarf_opcode, dwarf_len);
+ assert(dwarf_len == ret_val);
+ reg_info.dynamic_size_dwarf_expr_bytes = dwarf_opcode;
+ }
else
{
printf("unhandled attribute %s = %s\n", name.data(), value.data());
Index: source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
===================================================================
--- source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
+++ source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.h
@@ -46,6 +46,13 @@
void
HardcodeARMRegisters(bool from_scratch);
+
+ // Detect the register size dynamically.
+ uint32_t
+ UpdateDynamicRegisterSize (ExecutionContext *exe_ctx,
+ RegisterContext *reg_ctx,
+ const lldb_private::ArchSpec &arch,
+ RegisterInfo* reg_info, size_t reg);
};
class GDBRemoteRegisterContext : public RegisterContext
Index: source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
===================================================================
--- source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
+++ source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
@@ -20,6 +20,10 @@
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/Utils.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Expression/DWARFExpression.h"
+#include "lldb/Core/dwarf.h"
+#include "lldb/Core/Value.h"
// Project includes
#include "Utility/StringExtractorGDBRemote.h"
#include "ProcessGDBRemote.h"
@@ -89,7 +93,15 @@
const RegisterInfo *
GDBRemoteRegisterContext::GetRegisterInfoAtIndex (size_t reg)
{
- return m_reg_info.GetRegisterInfoAtIndex (reg);
+ ExecutionContext exe_ctx (CalculateThread());
+ const ArchSpec &arch = m_thread.GetProcess()->GetTarget().GetArchitecture();
+ RegisterInfo* reg_info = m_reg_info.GetRegisterInfoAtIndex (reg);
+ if(reg_info->dynamic_size_dwarf_len)
+ {
+ uint8_t reg_size = m_reg_info.UpdateDynamicRegisterSize (&exe_ctx, this, arch, reg_info, reg);
+ reg_info->byte_size = reg_size;
+ }
+ return reg_info;
}
size_t
@@ -939,6 +951,47 @@
return m_reg_info.ConvertRegisterKindToRegisterNumber (kind, num);
}
+uint32_t
+GDBRemoteDynamicRegisterInfo::UpdateDynamicRegisterSize (ExecutionContext *exe_ctx,
+ RegisterContext *reg_ctx,
+ const lldb_private::ArchSpec &arch,
+ RegisterInfo* reg_info, size_t reg)
+{
+ // In MIPS, the floating point registers size is depends on FR.
+ // if SR.26 == 1 then all floating point registers are 64 bits.
+ // else they are all 32 bits.
+
+ int evaluate_result;
+ uint8_t opcode_len = reg_info->dynamic_size_dwarf_len;
+ uint32_t addr_size = arch.GetAddressByteSize ();
+ uint8_t* opcode_ptr = m_dynamic_reg_size_map[reg].data();
+ DataExtractor dwarf_data (opcode_ptr, opcode_len,
+ arch.GetByteOrder (),addr_size);
+ ModuleSP opcode_ctx;
+ DWARFExpression dwarf_expr (opcode_ctx, dwarf_data, nullptr, 0, opcode_len);
+ Value result;
+ Error error;
+ const lldb::offset_t offset = 0;
+ if(dwarf_expr.Evaluate (exe_ctx, nullptr, nullptr, reg_ctx, opcode_ctx, dwarf_data, nullptr,
+ offset, opcode_len, eRegisterKindDWARF, nullptr, nullptr, result, &error))
+ {
+ evaluate_result = result.GetScalar().SInt(-1);
+ switch (evaluate_result)
+ {
+ case 0: return 4;break;
+ case 1: return 8;break;
+ case -1: return reg_info->byte_size; break;
+ default: assert(false && "Incorrect Dwarf Opcode bytes");
+ break;
+ }
+ return 0;
+ }
+ else
+ {
+ printf("Error executing DwarfExpression::Evaluate %s\n", error.AsCString());
+ return reg_info->byte_size;
+ }
+}
void
GDBRemoteDynamicRegisterInfo::HardcodeARMRegisters(bool from_scratch)
Index: source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
===================================================================
--- source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+++ source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
@@ -1634,6 +1634,14 @@
response.PutChar (';');
}
+ if (reg_info->dynamic_size_dwarf_len > 0)
+ {
+ response.Printf("dynamic_size_dwarf_len:%" PRIu64 ";",reg_info->dynamic_size_dwarf_len);
+ response.PutCString("dynamic_size_dwarf_expr_bytes:");
+ for(uint32_t i = 0; i < reg_info->dynamic_size_dwarf_len; ++i)
+ response.PutHex8 (reg_info->dynamic_size_dwarf_expr_bytes[i]);
+ response.PutChar(';');
+ }
return SendPacketNoLock(response.GetData(), response.GetSize());
}
@@ -1829,7 +1837,10 @@
return SendErrorResponse (0x47);
}
- if (reg_size != reg_info->byte_size)
+ // The dwarf expression are evaluate on LLDB side
+ // which may cause register size to change
+ // Hence the reg_size may not be same as reg_info->bytes_size
+ if ((reg_size != reg_info->byte_size) && (reg_info->dynamic_size_dwarf_len == 0))
{
return SendIllFormedResponse (packet, "P packet register size is incorrect");
}
Index: source/Plugins/Process/Utility/RegisterInfos_mips64.h
===================================================================
--- source/Plugins/Process/Utility/RegisterInfos_mips64.h
+++ source/Plugins/Process/Utility/RegisterInfos_mips64.h
@@ -13,7 +13,7 @@
// C++ Includes
// Other libraries and framework includes
#include "llvm/Support/Compiler.h"
-
+#include "lldb/Core/dwarf.h"
// Project includes
#ifdef DECLARE_REGISTER_INFOS_MIPS64_STRUCT
@@ -44,32 +44,39 @@
#ifdef LINUX_MIPS64
#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((GPR_linux_mips*)0)->reg), GPR_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL, NULL, 0}
#else
#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((GPR_freebsd_mips*)0)->reg), GPR_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL, NULL, 0}
#endif
#define DEFINE_GPR_INFO(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((GPR_linux_mips*)0)->reg) / 2, GPR_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL, NULL, 0}
+
+const uint8_t dwarf_opcode_mips64 [] = {
+ llvm::dwarf::DW_OP_regx, dwarf_sr_mips64, llvm::dwarf::DW_OP_lit1,
+ llvm::dwarf::DW_OP_lit26, llvm::dwarf::DW_OP_shl, llvm::dwarf::DW_OP_and,
+ llvm::dwarf::DW_OP_lit26, llvm::dwarf::DW_OP_shr
+ };
+
#define DEFINE_FPR(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((FPR_linux_mips*)0)->reg), FPR_OFFSET(reg), eEncodingIEEE754, \
- eFormatFloat, { kind1, kind2, kind3, kind4, fpr_##reg##_mips64 }, NULL, NULL }
+ eFormatFloat, { kind1, kind2, kind3, kind4, fpr_##reg##_mips64 }, NULL, NULL, dwarf_opcode_mips64, sizeof(dwarf_opcode_mips64)}
#define DEFINE_FPR_INFO(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((FPR_linux_mips*)0)->reg), FPR_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips64 }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips64 }, NULL, NULL, NULL, 0 }
#define DEFINE_MSA(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingVector, \
- eFormatVectorOfUInt8, { kind1, kind2, kind3, kind4, msa_##reg##_mips64 }, NULL, NULL }
+ eFormatVectorOfUInt8, { kind1, kind2, kind3, kind4, msa_##reg##_mips64 }, NULL, NULL, NULL, 0}
#define DEFINE_MSA_INFO(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips64 }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips64 }, NULL, NULL, NULL, 0}
static RegisterInfo
g_register_infos_mips64[] =
Index: source/Plugins/Process/Utility/RegisterInfos_mips.h
===================================================================
--- source/Plugins/Process/Utility/RegisterInfos_mips.h
+++ source/Plugins/Process/Utility/RegisterInfos_mips.h
@@ -13,7 +13,7 @@
// C++ Includes
// Other libraries and framework includes
#include "llvm/Support/Compiler.h"
-
+#include "lldb/Core/dwarf.h"
// Project includes
#ifdef DECLARE_REGISTER_INFOS_MIPS_STRUCT
@@ -36,23 +36,29 @@
// Note that the size and offset will be updated by platform-specific classes.
#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((GPR_linux_mips*)NULL)->reg) / 2, GPR_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips }, NULL, NULL, NULL, 0}
+
+const uint8_t dwarf_opcode_mips [] = {
+ llvm::dwarf::DW_OP_regx, dwarf_sr_mips, llvm::dwarf::DW_OP_lit1,
+ llvm::dwarf::DW_OP_lit26, llvm::dwarf::DW_OP_shl, llvm::dwarf::DW_OP_and,
+ llvm::dwarf::DW_OP_lit26, llvm::dwarf::DW_OP_shr
+ };
#define DEFINE_FPR(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((FPR_linux_mips*)NULL)->reg), FPR_OFFSET(reg), eEncodingIEEE754, \
- eFormatFloat, { kind1, kind2, kind3, kind4, fpr_##reg##_mips }, NULL, NULL }
+ eFormatFloat, { kind1, kind2, kind3, kind4, fpr_##reg##_mips }, NULL, NULL, dwarf_opcode_mips, sizeof(dwarf_opcode_mips)}
#define DEFINE_FPR_INFO(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((FPR_linux_mips*)NULL)->reg), FPR_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips }, NULL, NULL, NULL, 0 }
#define DEFINE_MSA(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingVector, \
- eFormatVectorOfUInt8, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL }
+ eFormatVectorOfUInt8, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL, NULL, 0 }
#define DEFINE_MSA_INFO(reg, alt, kind1, kind2, kind3, kind4) \
{ #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingUint, \
- eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL }
+ eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL, NULL, 0 }
// RegisterKind: EH_Frame, DWARF, Generic, Procss Plugin, LLDB
Index: source/Plugins/Process/Utility/DynamicRegisterInfo.h
===================================================================
--- source/Plugins/Process/Utility/DynamicRegisterInfo.h
+++ source/Plugins/Process/Utility/DynamicRegisterInfo.h
@@ -56,6 +56,9 @@
const lldb_private::RegisterInfo *
GetRegisterInfoAtIndex (uint32_t i) const;
+ lldb_private::RegisterInfo *
+ GetRegisterInfoAtIndex (uint32_t i);
+
const lldb_private::RegisterSet *
GetRegisterSet (uint32_t i) const;
@@ -81,6 +84,8 @@
typedef std::vector <reg_num_collection> set_reg_num_collection;
typedef std::vector <lldb_private::ConstString> name_collection;
typedef std::map<uint32_t, reg_num_collection> reg_to_regs_map;
+ typedef std::vector <uint8_t> dwarf_opcode;
+ typedef std::map<uint32_t, dwarf_opcode> dynamic_reg_size_map;
lldb_private::RegisterInfo *
GetRegisterInfo (const lldb_private::ConstString ®_name);
@@ -91,6 +96,7 @@
name_collection m_set_names;
reg_to_regs_map m_value_regs_map;
reg_to_regs_map m_invalidate_regs_map;
+ dynamic_reg_size_map m_dynamic_reg_size_map;
size_t m_reg_data_byte_size; // The number of bytes required to store all registers
bool m_finalized;
};
Index: source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
===================================================================
--- source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
+++ source/Plugins/Process/Utility/DynamicRegisterInfo.cpp
@@ -19,7 +19,7 @@
#include "lldb/Core/StructuredData.h"
#include "lldb/DataFormatters/FormatManager.h"
#include "lldb/Host/StringConvert.h"
-
+#include "lldb/Utility/StringExtractor.h"
using namespace lldb;
using namespace lldb_private;
@@ -30,6 +30,7 @@
m_set_names (),
m_value_regs_map (),
m_invalidate_regs_map (),
+ m_dynamic_reg_size_map (),
m_reg_data_byte_size (0),
m_finalized (false)
{
@@ -43,6 +44,7 @@
m_set_names (),
m_value_regs_map (),
m_invalidate_regs_map (),
+ m_dynamic_reg_size_map (),
m_reg_data_byte_size (0),
m_finalized (false)
{
@@ -292,6 +294,26 @@
reg_info.byte_size = bitsize / 8;
+ uint8_t dynamic_size = 0;
+ reg_info_dict->GetValueForKeyAsInteger("dynamic_size_dwarf_len", dynamic_size);
+ reg_info.dynamic_size_dwarf_len = dynamic_size;
+
+ std::string dwarf_opcode_string;
+ if(reg_info_dict->GetValueForKeyAsString("dynamic_size_dwarf_expr_bytes", dwarf_opcode_string))
+ {
+ uint8_t dwarf_opcode[8];
+ uint32_t j;
+ assert(reg_info.dynamic_size_dwarf_len > 0);
+ StringExtractor name_extractor;
+
+ // Swap "dwarf_opcode_string" over into "name_extractor"
+ name_extractor.GetStringRef().swap(dwarf_opcode_string);
+ uint32_t ret_val = name_extractor.GetHexBytesAvail (dwarf_opcode, reg_info.dynamic_size_dwarf_len);
+ assert(ret_val == reg_info.dynamic_size_dwarf_len);
+ for (j = 0; j < reg_info.dynamic_size_dwarf_len; ++j)
+ m_dynamic_reg_size_map[i].push_back(dwarf_opcode[j]);
+ }
+
std::string format_str;
if (reg_info_dict->GetValueForKeyAsString("format", format_str, nullptr))
{
@@ -417,6 +439,11 @@
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]);
}
+ if (reg_info.dynamic_size_dwarf_expr_bytes)
+ {
+ for (i = 0; i < reg_info.dynamic_size_dwarf_len; ++i)
+ m_dynamic_reg_size_map[reg_num].push_back(reg_info.dynamic_size_dwarf_expr_bytes[i]);
+ }
m_regs.push_back (reg_info);
uint32_t set = GetRegisterSetIndexByName (set_name, true);
assert (set < m_sets.size());
@@ -641,6 +668,14 @@
return NULL;
}
+RegisterInfo *
+DynamicRegisterInfo::GetRegisterInfoAtIndex (uint32_t i)
+{
+ if (i < m_regs.size())
+ return &m_regs[i];
+ return NULL;
+}
+
const RegisterSet *
DynamicRegisterInfo::GetRegisterSet (uint32_t i) const
{
@@ -702,11 +737,12 @@
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",
+ s.Printf(", size = %2u, offset = %4u, encoding = %u, format = %-10s, dynamic_size_dwarf_len = %lu",
m_regs[i].byte_size,
m_regs[i].byte_offset,
m_regs[i].encoding,
- FormatManager::GetFormatAsCString (m_regs[i].format));
+ FormatManager::GetFormatAsCString (m_regs[i].format),
+ m_regs[i].dynamic_size_dwarf_len);
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)
Index: include/lldb/lldb-private-types.h
===================================================================
--- include/lldb/lldb-private-types.h
+++ include/lldb/lldb-private-types.h
@@ -54,6 +54,10 @@
// null, all registers in this list will be invalidated when the value of this
// register changes. For example, the invalidate list for eax would be rax
// ax, ah, and al.
+ const uint8_t *dynamic_size_dwarf_expr_bytes; // A DWARF expression that when evaluated gives
+ // the byte size of this register.
+ size_t dynamic_size_dwarf_len; // The length of the DWARF expression in bytes in the
+ // dynamic_size_dwarf_expr_bytes member
};
//----------------------------------------------------------------------
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