| //===-- DumpDataExtractor.cpp ---------------------------------------------===// |
| // |
| // 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/DumpDataExtractor.h" |
| |
| #include "lldb/lldb-defines.h" |
| #include "lldb/lldb-forward.h" |
| |
| #include "lldb/Core/Address.h" |
| #include "lldb/Core/Disassembler.h" |
| #include "lldb/Core/ModuleList.h" |
| #include "lldb/Target/ABI.h" |
| #include "lldb/Target/ExecutionContext.h" |
| #include "lldb/Target/ExecutionContextScope.h" |
| #include "lldb/Target/MemoryRegionInfo.h" |
| #include "lldb/Target/MemoryTagManager.h" |
| #include "lldb/Target/MemoryTagMap.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/SectionLoadList.h" |
| #include "lldb/Target/Target.h" |
| #include "lldb/Utility/DataExtractor.h" |
| #include "lldb/Utility/Log.h" |
| #include "lldb/Utility/Stream.h" |
| |
| #include "llvm/ADT/APFloat.h" |
| #include "llvm/ADT/APInt.h" |
| #include "llvm/ADT/ArrayRef.h" |
| #include "llvm/ADT/SmallVector.h" |
| |
| #include <limits> |
| #include <memory> |
| #include <string> |
| |
| #include <cassert> |
| #include <cctype> |
| #include <cinttypes> |
| #include <cmath> |
| |
| #include <bitset> |
| #include <optional> |
| #include <sstream> |
| |
| using namespace lldb_private; |
| using namespace lldb; |
| |
| #define NON_PRINTABLE_CHAR '.' |
| |
| static std::optional<llvm::APInt> GetAPInt(const DataExtractor &data, |
| lldb::offset_t *offset_ptr, |
| lldb::offset_t byte_size) { |
| if (byte_size == 0) |
| return std::nullopt; |
| |
| llvm::SmallVector<uint64_t, 2> uint64_array; |
| lldb::offset_t bytes_left = byte_size; |
| uint64_t u64; |
| const lldb::ByteOrder byte_order = data.GetByteOrder(); |
| if (byte_order == lldb::eByteOrderLittle) { |
| while (bytes_left > 0) { |
| if (bytes_left >= 8) { |
| u64 = data.GetU64(offset_ptr); |
| bytes_left -= 8; |
| } else { |
| u64 = data.GetMaxU64(offset_ptr, (uint32_t)bytes_left); |
| bytes_left = 0; |
| } |
| uint64_array.push_back(u64); |
| } |
| return llvm::APInt(byte_size * 8, llvm::ArrayRef<uint64_t>(uint64_array)); |
| } else if (byte_order == lldb::eByteOrderBig) { |
| lldb::offset_t be_offset = *offset_ptr + byte_size; |
| lldb::offset_t temp_offset; |
| while (bytes_left > 0) { |
| if (bytes_left >= 8) { |
| be_offset -= 8; |
| temp_offset = be_offset; |
| u64 = data.GetU64(&temp_offset); |
| bytes_left -= 8; |
| } else { |
| be_offset -= bytes_left; |
| temp_offset = be_offset; |
| u64 = data.GetMaxU64(&temp_offset, (uint32_t)bytes_left); |
| bytes_left = 0; |
| } |
| uint64_array.push_back(u64); |
| } |
| *offset_ptr += byte_size; |
| return llvm::APInt(byte_size * 8, llvm::ArrayRef<uint64_t>(uint64_array)); |
| } |
| return std::nullopt; |
| } |
| |
| static lldb::offset_t DumpAPInt(Stream *s, const DataExtractor &data, |
| lldb::offset_t offset, lldb::offset_t byte_size, |
| bool is_signed, unsigned radix) { |
| std::optional<llvm::APInt> apint = GetAPInt(data, &offset, byte_size); |
| if (apint) { |
| std::string apint_str = toString(*apint, radix, is_signed); |
| switch (radix) { |
| case 2: |
| s->Write("0b", 2); |
| break; |
| case 8: |
| s->Write("0", 1); |
| break; |
| case 10: |
| break; |
| } |
| s->Write(apint_str.c_str(), apint_str.size()); |
| } |
| return offset; |
| } |
| |
| /// Dumps decoded instructions to a stream. |
| static lldb::offset_t DumpInstructions(const DataExtractor &DE, Stream *s, |
| ExecutionContextScope *exe_scope, |
| offset_t start_offset, |
| uint64_t base_addr, |
| size_t number_of_instructions) { |
| offset_t offset = start_offset; |
| |
| TargetSP target_sp; |
| if (exe_scope) |
| target_sp = exe_scope->CalculateTarget(); |
| if (target_sp) { |
| DisassemblerSP disassembler_sp( |
| Disassembler::FindPlugin(target_sp->GetArchitecture(), |
| target_sp->GetDisassemblyFlavor(), nullptr)); |
| if (disassembler_sp) { |
| lldb::addr_t addr = base_addr + start_offset; |
| lldb_private::Address so_addr; |
| bool data_from_file = true; |
| if (target_sp->GetSectionLoadList().ResolveLoadAddress(addr, so_addr)) { |
| data_from_file = false; |
| } else { |
| if (target_sp->GetSectionLoadList().IsEmpty() || |
| !target_sp->GetImages().ResolveFileAddress(addr, so_addr)) |
| so_addr.SetRawAddress(addr); |
| } |
| |
| size_t bytes_consumed = disassembler_sp->DecodeInstructions( |
| so_addr, DE, start_offset, number_of_instructions, false, |
| data_from_file); |
| |
| if (bytes_consumed) { |
| offset += bytes_consumed; |
| const bool show_address = base_addr != LLDB_INVALID_ADDRESS; |
| const bool show_bytes = false; |
| const bool show_control_flow_kind = false; |
| ExecutionContext exe_ctx; |
| exe_scope->CalculateExecutionContext(exe_ctx); |
| disassembler_sp->GetInstructionList().Dump( |
| s, show_address, show_bytes, show_control_flow_kind, &exe_ctx); |
| } |
| } |
| } else |
| s->Printf("invalid target"); |
| |
| return offset; |
| } |
| |
| /// Prints the specific escape sequence of the given character to the stream. |
| /// If the character doesn't have a known specific escape sequence (e.g., '\a', |
| /// '\n' but not generic escape sequences such as'\x12'), this function will |
| /// not modify the stream and return false. |
| static bool TryDumpSpecialEscapedChar(Stream &s, const char c) { |
| switch (c) { |
| case '\033': |
| // Common non-standard escape code for 'escape'. |
| s.Printf("\\e"); |
| return true; |
| case '\a': |
| s.Printf("\\a"); |
| return true; |
| case '\b': |
| s.Printf("\\b"); |
| return true; |
| case '\f': |
| s.Printf("\\f"); |
| return true; |
| case '\n': |
| s.Printf("\\n"); |
| return true; |
| case '\r': |
| s.Printf("\\r"); |
| return true; |
| case '\t': |
| s.Printf("\\t"); |
| return true; |
| case '\v': |
| s.Printf("\\v"); |
| return true; |
| case '\0': |
| s.Printf("\\0"); |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /// Dump the character to a stream. A character that is not printable will be |
| /// represented by its escape sequence. |
| static void DumpCharacter(Stream &s, const char c) { |
| if (TryDumpSpecialEscapedChar(s, c)) |
| return; |
| if (llvm::isPrint(c)) { |
| s.PutChar(c); |
| return; |
| } |
| s.Printf("\\x%2.2hhx", c); |
| } |
| |
| /// Dump a floating point type. |
| template <typename FloatT> |
| void DumpFloatingPoint(std::ostringstream &ss, FloatT f) { |
| static_assert(std::is_floating_point<FloatT>::value, |
| "Only floating point types can be dumped."); |
| // NaN and Inf are potentially implementation defined and on Darwin it |
| // seems NaNs are printed without their sign. Manually implement dumping them |
| // here to avoid having to deal with platform differences. |
| if (std::isnan(f)) { |
| if (std::signbit(f)) |
| ss << '-'; |
| ss << "nan"; |
| return; |
| } |
| if (std::isinf(f)) { |
| if (std::signbit(f)) |
| ss << '-'; |
| ss << "inf"; |
| return; |
| } |
| ss << f; |
| } |
| |
| static std::optional<MemoryTagMap> |
| GetMemoryTags(lldb::addr_t addr, size_t length, |
| ExecutionContextScope *exe_scope) { |
| assert(addr != LLDB_INVALID_ADDRESS); |
| |
| if (!exe_scope) |
| return std::nullopt; |
| |
| TargetSP target_sp = exe_scope->CalculateTarget(); |
| if (!target_sp) |
| return std::nullopt; |
| |
| ProcessSP process_sp = target_sp->CalculateProcess(); |
| if (!process_sp) |
| return std::nullopt; |
| |
| llvm::Expected<const MemoryTagManager *> tag_manager_or_err = |
| process_sp->GetMemoryTagManager(); |
| if (!tag_manager_or_err) { |
| llvm::consumeError(tag_manager_or_err.takeError()); |
| return std::nullopt; |
| } |
| |
| MemoryRegionInfos memory_regions; |
| // Don't check return status, list will be just empty if an error happened. |
| process_sp->GetMemoryRegions(memory_regions); |
| |
| llvm::Expected<std::vector<MemoryTagManager::TagRange>> tagged_ranges_or_err = |
| (*tag_manager_or_err) |
| ->MakeTaggedRanges(addr, addr + length, memory_regions); |
| // Here we know that our range will not be inverted but we must still check |
| // for an error. |
| if (!tagged_ranges_or_err) { |
| llvm::consumeError(tagged_ranges_or_err.takeError()); |
| return std::nullopt; |
| } |
| if (tagged_ranges_or_err->empty()) |
| return std::nullopt; |
| |
| MemoryTagMap memory_tag_map(*tag_manager_or_err); |
| for (const MemoryTagManager::TagRange &range : *tagged_ranges_or_err) { |
| llvm::Expected<std::vector<lldb::addr_t>> tags_or_err = |
| process_sp->ReadMemoryTags(range.GetRangeBase(), range.GetByteSize()); |
| |
| if (tags_or_err) |
| memory_tag_map.InsertTags(range.GetRangeBase(), *tags_or_err); |
| else |
| llvm::consumeError(tags_or_err.takeError()); |
| } |
| |
| if (memory_tag_map.Empty()) |
| return std::nullopt; |
| |
| return memory_tag_map; |
| } |
| |
| static void printMemoryTags(const DataExtractor &DE, Stream *s, |
| lldb::addr_t addr, size_t len, |
| const std::optional<MemoryTagMap> &memory_tag_map) { |
| std::vector<std::optional<lldb::addr_t>> tags = |
| memory_tag_map->GetTags(addr, len); |
| |
| // Only print if there is at least one tag for this line |
| if (tags.empty()) |
| return; |
| |
| s->Printf(" (tag%s:", tags.size() > 1 ? "s" : ""); |
| // Some granules may not be tagged but print something for them |
| // so that the ordering remains intact. |
| for (auto tag : tags) { |
| if (tag) |
| s->Printf(" 0x%" PRIx64, *tag); |
| else |
| s->PutCString(" <no tag>"); |
| } |
| s->PutCString(")"); |
| } |
| |
| static const llvm::fltSemantics &GetFloatSemantics(const TargetSP &target_sp, |
| size_t byte_size) { |
| if (target_sp) { |
| auto type_system_or_err = |
| target_sp->GetScratchTypeSystemForLanguage(eLanguageTypeC); |
| if (!type_system_or_err) |
| llvm::consumeError(type_system_or_err.takeError()); |
| else if (auto ts = *type_system_or_err) |
| return ts->GetFloatTypeSemantics(byte_size); |
| } |
| // No target, just make a reasonable guess |
| switch(byte_size) { |
| case 2: |
| return llvm::APFloat::IEEEhalf(); |
| case 4: |
| return llvm::APFloat::IEEEsingle(); |
| case 8: |
| return llvm::APFloat::IEEEdouble(); |
| } |
| return llvm::APFloat::Bogus(); |
| } |
| |
| lldb::offset_t lldb_private::DumpDataExtractor( |
| const DataExtractor &DE, Stream *s, offset_t start_offset, |
| lldb::Format item_format, size_t item_byte_size, size_t item_count, |
| size_t num_per_line, uint64_t base_addr, |
| uint32_t item_bit_size, // If zero, this is not a bitfield value, if |
| // non-zero, the value is a bitfield |
| uint32_t item_bit_offset, // If "item_bit_size" is non-zero, this is the |
| // shift amount to apply to a bitfield |
| ExecutionContextScope *exe_scope, bool show_memory_tags) { |
| if (s == nullptr) |
| return start_offset; |
| |
| if (item_format == eFormatPointer) { |
| if (item_byte_size != 4 && item_byte_size != 8) |
| item_byte_size = s->GetAddressByteSize(); |
| } |
| |
| offset_t offset = start_offset; |
| |
| std::optional<MemoryTagMap> memory_tag_map; |
| if (show_memory_tags && base_addr != LLDB_INVALID_ADDRESS) |
| memory_tag_map = |
| GetMemoryTags(base_addr, DE.GetByteSize() - offset, exe_scope); |
| |
| if (item_format == eFormatInstruction) |
| return DumpInstructions(DE, s, exe_scope, start_offset, base_addr, |
| item_count); |
| |
| if ((item_format == eFormatOSType || item_format == eFormatAddressInfo) && |
| item_byte_size > 8) |
| item_format = eFormatHex; |
| |
| lldb::offset_t line_start_offset = start_offset; |
| for (uint32_t count = 0; DE.ValidOffset(offset) && count < item_count; |
| ++count) { |
| // If we are at the beginning or end of a line |
| // Note that the last line is handled outside this for loop. |
| if ((count % num_per_line) == 0) { |
| // If we are at the end of a line |
| if (count > 0) { |
| if (item_format == eFormatBytesWithASCII && |
| offset > line_start_offset) { |
| s->Printf("%*s", |
| static_cast<int>( |
| (num_per_line - (offset - line_start_offset)) * 3 + 2), |
| ""); |
| DumpDataExtractor(DE, s, line_start_offset, eFormatCharPrintable, 1, |
| offset - line_start_offset, SIZE_MAX, |
| LLDB_INVALID_ADDRESS, 0, 0); |
| } |
| |
| if (base_addr != LLDB_INVALID_ADDRESS && memory_tag_map) { |
| size_t line_len = offset - line_start_offset; |
| lldb::addr_t line_base = |
| base_addr + |
| (offset - start_offset - line_len) / DE.getTargetByteSize(); |
| printMemoryTags(DE, s, line_base, line_len, memory_tag_map); |
| } |
| |
| s->EOL(); |
| } |
| if (base_addr != LLDB_INVALID_ADDRESS) |
| s->Printf("0x%8.8" PRIx64 ": ", |
| (uint64_t)(base_addr + |
| (offset - start_offset) / DE.getTargetByteSize())); |
| |
| line_start_offset = offset; |
| } else if (item_format != eFormatChar && |
| item_format != eFormatCharPrintable && |
| item_format != eFormatCharArray && count > 0) { |
| s->PutChar(' '); |
| } |
| |
| switch (item_format) { |
| case eFormatBoolean: |
| if (item_byte_size <= 8) |
| s->Printf("%s", DE.GetMaxU64Bitfield(&offset, item_byte_size, |
| item_bit_size, item_bit_offset) |
| ? "true" |
| : "false"); |
| else { |
| s->Printf("error: unsupported byte size (%" PRIu64 |
| ") for boolean format", |
| (uint64_t)item_byte_size); |
| return offset; |
| } |
| break; |
| |
| case eFormatBinary: |
| if (item_byte_size <= 8) { |
| uint64_t uval64 = DE.GetMaxU64Bitfield(&offset, item_byte_size, |
| item_bit_size, item_bit_offset); |
| // Avoid std::bitset<64>::to_string() since it is missing in earlier |
| // C++ libraries |
| std::string binary_value(64, '0'); |
| std::bitset<64> bits(uval64); |
| for (uint32_t i = 0; i < 64; ++i) |
| if (bits[i]) |
| binary_value[64 - 1 - i] = '1'; |
| if (item_bit_size > 0) |
| s->Printf("0b%s", binary_value.c_str() + 64 - item_bit_size); |
| else if (item_byte_size > 0 && item_byte_size <= 8) |
| s->Printf("0b%s", binary_value.c_str() + 64 - item_byte_size * 8); |
| } else { |
| const bool is_signed = false; |
| const unsigned radix = 2; |
| offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix); |
| } |
| break; |
| |
| case eFormatBytes: |
| case eFormatBytesWithASCII: |
| for (uint32_t i = 0; i < item_byte_size; ++i) { |
| s->Printf("%2.2x", DE.GetU8(&offset)); |
| } |
| |
| // Put an extra space between the groups of bytes if more than one is |
| // being dumped in a group (item_byte_size is more than 1). |
| if (item_byte_size > 1) |
| s->PutChar(' '); |
| break; |
| |
| case eFormatChar: |
| case eFormatCharPrintable: |
| case eFormatCharArray: { |
| // Reject invalid item_byte_size. |
| if (item_byte_size > 8) { |
| s->Printf("error: unsupported byte size (%" PRIu64 ") for char format", |
| (uint64_t)item_byte_size); |
| return offset; |
| } |
| |
| // If we are only printing one character surround it with single quotes |
| if (item_count == 1 && item_format == eFormatChar) |
| s->PutChar('\''); |
| |
| const uint64_t ch = DE.GetMaxU64Bitfield(&offset, item_byte_size, |
| item_bit_size, item_bit_offset); |
| if (llvm::isPrint(ch)) |
| s->Printf("%c", (char)ch); |
| else if (item_format != eFormatCharPrintable) { |
| if (!TryDumpSpecialEscapedChar(*s, ch)) { |
| if (item_byte_size == 1) |
| s->Printf("\\x%2.2x", (uint8_t)ch); |
| else |
| s->Printf("%" PRIu64, ch); |
| } |
| } else { |
| s->PutChar(NON_PRINTABLE_CHAR); |
| } |
| |
| // If we are only printing one character surround it with single quotes |
| if (item_count == 1 && item_format == eFormatChar) |
| s->PutChar('\''); |
| } break; |
| |
| case eFormatEnum: // Print enum value as a signed integer when we don't get |
| // the enum type |
| case eFormatDecimal: |
| if (item_byte_size <= 8) |
| s->Printf("%" PRId64, |
| DE.GetMaxS64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset)); |
| else { |
| const bool is_signed = true; |
| const unsigned radix = 10; |
| offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix); |
| } |
| break; |
| |
| case eFormatUnsigned: |
| if (item_byte_size <= 8) |
| s->Printf("%" PRIu64, |
| DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset)); |
| else { |
| const bool is_signed = false; |
| const unsigned radix = 10; |
| offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix); |
| } |
| break; |
| |
| case eFormatOctal: |
| if (item_byte_size <= 8) |
| s->Printf("0%" PRIo64, |
| DE.GetMaxS64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset)); |
| else { |
| const bool is_signed = false; |
| const unsigned radix = 8; |
| offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix); |
| } |
| break; |
| |
| case eFormatOSType: { |
| uint64_t uval64 = DE.GetMaxU64Bitfield(&offset, item_byte_size, |
| item_bit_size, item_bit_offset); |
| s->PutChar('\''); |
| for (uint32_t i = 0; i < item_byte_size; ++i) { |
| uint8_t ch = (uint8_t)(uval64 >> ((item_byte_size - i - 1) * 8)); |
| DumpCharacter(*s, ch); |
| } |
| s->PutChar('\''); |
| } break; |
| |
| case eFormatCString: { |
| const char *cstr = DE.GetCStr(&offset); |
| |
| if (!cstr) { |
| s->Printf("NULL"); |
| offset = LLDB_INVALID_OFFSET; |
| } else { |
| s->PutChar('\"'); |
| |
| while (const char c = *cstr) { |
| DumpCharacter(*s, c); |
| ++cstr; |
| } |
| |
| s->PutChar('\"'); |
| } |
| } break; |
| |
| case eFormatPointer: |
| DumpAddress(s->AsRawOstream(), |
| DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset), |
| sizeof(addr_t)); |
| break; |
| |
| case eFormatComplexInteger: { |
| size_t complex_int_byte_size = item_byte_size / 2; |
| |
| if (complex_int_byte_size > 0 && complex_int_byte_size <= 8) { |
| s->Printf("%" PRIu64, |
| DE.GetMaxU64Bitfield(&offset, complex_int_byte_size, 0, 0)); |
| s->Printf(" + %" PRIu64 "i", |
| DE.GetMaxU64Bitfield(&offset, complex_int_byte_size, 0, 0)); |
| } else { |
| s->Printf("error: unsupported byte size (%" PRIu64 |
| ") for complex integer format", |
| (uint64_t)item_byte_size); |
| return offset; |
| } |
| } break; |
| |
| case eFormatComplex: |
| if (sizeof(float) * 2 == item_byte_size) { |
| float f32_1 = DE.GetFloat(&offset); |
| float f32_2 = DE.GetFloat(&offset); |
| |
| s->Printf("%g + %gi", f32_1, f32_2); |
| break; |
| } else if (sizeof(double) * 2 == item_byte_size) { |
| double d64_1 = DE.GetDouble(&offset); |
| double d64_2 = DE.GetDouble(&offset); |
| |
| s->Printf("%lg + %lgi", d64_1, d64_2); |
| break; |
| } else if (sizeof(long double) * 2 == item_byte_size) { |
| long double ld64_1 = DE.GetLongDouble(&offset); |
| long double ld64_2 = DE.GetLongDouble(&offset); |
| s->Printf("%Lg + %Lgi", ld64_1, ld64_2); |
| break; |
| } else { |
| s->Printf("error: unsupported byte size (%" PRIu64 |
| ") for complex float format", |
| (uint64_t)item_byte_size); |
| return offset; |
| } |
| break; |
| |
| default: |
| case eFormatDefault: |
| case eFormatHex: |
| case eFormatHexUppercase: { |
| bool wantsuppercase = (item_format == eFormatHexUppercase); |
| switch (item_byte_size) { |
| case 1: |
| case 2: |
| case 4: |
| case 8: |
| if (Target::GetGlobalProperties() |
| .ShowHexVariableValuesWithLeadingZeroes()) { |
| s->Printf(wantsuppercase ? "0x%*.*" PRIX64 : "0x%*.*" PRIx64, |
| (int)(2 * item_byte_size), (int)(2 * item_byte_size), |
| DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset)); |
| } else { |
| s->Printf(wantsuppercase ? "0x%" PRIX64 : "0x%" PRIx64, |
| DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset)); |
| } |
| break; |
| default: { |
| assert(item_bit_size == 0 && item_bit_offset == 0); |
| const uint8_t *bytes = |
| (const uint8_t *)DE.GetData(&offset, item_byte_size); |
| if (bytes) { |
| s->PutCString("0x"); |
| uint32_t idx; |
| if (DE.GetByteOrder() == eByteOrderBig) { |
| for (idx = 0; idx < item_byte_size; ++idx) |
| s->Printf(wantsuppercase ? "%2.2X" : "%2.2x", bytes[idx]); |
| } else { |
| for (idx = 0; idx < item_byte_size; ++idx) |
| s->Printf(wantsuppercase ? "%2.2X" : "%2.2x", |
| bytes[item_byte_size - 1 - idx]); |
| } |
| } |
| } break; |
| } |
| } break; |
| |
| case eFormatFloat: { |
| TargetSP target_sp; |
| if (exe_scope) |
| target_sp = exe_scope->CalculateTarget(); |
| |
| std::optional<unsigned> format_max_padding; |
| if (target_sp) |
| format_max_padding = target_sp->GetMaxZeroPaddingInFloatFormat(); |
| |
| // Show full precision when printing float values |
| const unsigned format_precision = 0; |
| |
| const llvm::fltSemantics &semantics = |
| GetFloatSemantics(target_sp, item_byte_size); |
| |
| // Recalculate the byte size in case of a difference. This is possible |
| // when item_byte_size is 16 (128-bit), because you could get back the |
| // x87DoubleExtended semantics which has a byte size of 10 (80-bit). |
| const size_t semantics_byte_size = |
| (llvm::APFloat::getSizeInBits(semantics) + 7) / 8; |
| std::optional<llvm::APInt> apint = |
| GetAPInt(DE, &offset, semantics_byte_size); |
| if (apint) { |
| llvm::APFloat apfloat(semantics, *apint); |
| llvm::SmallVector<char, 256> sv; |
| if (format_max_padding) |
| apfloat.toString(sv, format_precision, *format_max_padding); |
| else |
| apfloat.toString(sv, format_precision); |
| s->AsRawOstream() << sv; |
| } else { |
| s->Format("error: unsupported byte size ({0}) for float format", |
| item_byte_size); |
| return offset; |
| } |
| } break; |
| |
| case eFormatUnicode16: |
| s->Printf("U+%4.4x", DE.GetU16(&offset)); |
| break; |
| |
| case eFormatUnicode32: |
| s->Printf("U+0x%8.8x", DE.GetU32(&offset)); |
| break; |
| |
| case eFormatAddressInfo: { |
| addr_t addr = DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size, |
| item_bit_offset); |
| s->Printf("0x%*.*" PRIx64, (int)(2 * item_byte_size), |
| (int)(2 * item_byte_size), addr); |
| if (exe_scope) { |
| TargetSP target_sp(exe_scope->CalculateTarget()); |
| lldb_private::Address so_addr; |
| if (target_sp) { |
| if (target_sp->GetSectionLoadList().ResolveLoadAddress(addr, |
| so_addr)) { |
| s->PutChar(' '); |
| so_addr.Dump(s, exe_scope, Address::DumpStyleResolvedDescription, |
| Address::DumpStyleModuleWithFileAddress); |
| } else { |
| so_addr.SetOffset(addr); |
| so_addr.Dump(s, exe_scope, |
| Address::DumpStyleResolvedPointerDescription); |
| if (ProcessSP process_sp = exe_scope->CalculateProcess()) { |
| if (ABISP abi_sp = process_sp->GetABI()) { |
| addr_t addr_fixed = abi_sp->FixCodeAddress(addr); |
| if (target_sp->GetSectionLoadList().ResolveLoadAddress( |
| addr_fixed, so_addr)) { |
| s->PutChar(' '); |
| s->Printf("(0x%*.*" PRIx64 ")", (int)(2 * item_byte_size), |
| (int)(2 * item_byte_size), addr_fixed); |
| s->PutChar(' '); |
| so_addr.Dump(s, exe_scope, |
| Address::DumpStyleResolvedDescription, |
| Address::DumpStyleModuleWithFileAddress); |
| } |
| } |
| } |
| } |
| } |
| } |
| } break; |
| |
| case eFormatHexFloat: |
| if (sizeof(float) == item_byte_size) { |
| char float_cstr[256]; |
| llvm::APFloat ap_float(DE.GetFloat(&offset)); |
| ap_float.convertToHexString(float_cstr, 0, false, |
| llvm::APFloat::rmNearestTiesToEven); |
| s->Printf("%s", float_cstr); |
| break; |
| } else if (sizeof(double) == item_byte_size) { |
| char float_cstr[256]; |
| llvm::APFloat ap_float(DE.GetDouble(&offset)); |
| ap_float.convertToHexString(float_cstr, 0, false, |
| llvm::APFloat::rmNearestTiesToEven); |
| s->Printf("%s", float_cstr); |
| break; |
| } else { |
| s->Printf("error: unsupported byte size (%" PRIu64 |
| ") for hex float format", |
| (uint64_t)item_byte_size); |
| return offset; |
| } |
| break; |
| |
| // please keep the single-item formats below in sync with |
| // FormatManager::GetSingleItemFormat if you fail to do so, users will |
| // start getting different outputs depending on internal implementation |
| // details they should not care about || |
| case eFormatVectorOfChar: // || |
| s->PutChar('{'); // \/ |
| offset = |
| DumpDataExtractor(DE, s, offset, eFormatCharArray, 1, item_byte_size, |
| item_byte_size, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfSInt8: |
| s->PutChar('{'); |
| offset = |
| DumpDataExtractor(DE, s, offset, eFormatDecimal, 1, item_byte_size, |
| item_byte_size, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfUInt8: |
| s->PutChar('{'); |
| offset = DumpDataExtractor(DE, s, offset, eFormatHex, 1, item_byte_size, |
| item_byte_size, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfSInt16: |
| s->PutChar('{'); |
| offset = DumpDataExtractor( |
| DE, s, offset, eFormatDecimal, sizeof(uint16_t), |
| item_byte_size / sizeof(uint16_t), item_byte_size / sizeof(uint16_t), |
| LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfUInt16: |
| s->PutChar('{'); |
| offset = DumpDataExtractor(DE, s, offset, eFormatHex, sizeof(uint16_t), |
| item_byte_size / sizeof(uint16_t), |
| item_byte_size / sizeof(uint16_t), |
| LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfSInt32: |
| s->PutChar('{'); |
| offset = DumpDataExtractor( |
| DE, s, offset, eFormatDecimal, sizeof(uint32_t), |
| item_byte_size / sizeof(uint32_t), item_byte_size / sizeof(uint32_t), |
| LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfUInt32: |
| s->PutChar('{'); |
| offset = DumpDataExtractor(DE, s, offset, eFormatHex, sizeof(uint32_t), |
| item_byte_size / sizeof(uint32_t), |
| item_byte_size / sizeof(uint32_t), |
| LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfSInt64: |
| s->PutChar('{'); |
| offset = DumpDataExtractor( |
| DE, s, offset, eFormatDecimal, sizeof(uint64_t), |
| item_byte_size / sizeof(uint64_t), item_byte_size / sizeof(uint64_t), |
| LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfUInt64: |
| s->PutChar('{'); |
| offset = DumpDataExtractor(DE, s, offset, eFormatHex, sizeof(uint64_t), |
| item_byte_size / sizeof(uint64_t), |
| item_byte_size / sizeof(uint64_t), |
| LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfFloat16: |
| s->PutChar('{'); |
| offset = |
| DumpDataExtractor(DE, s, offset, eFormatFloat, 2, item_byte_size / 2, |
| item_byte_size / 2, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfFloat32: |
| s->PutChar('{'); |
| offset = |
| DumpDataExtractor(DE, s, offset, eFormatFloat, 4, item_byte_size / 4, |
| item_byte_size / 4, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfFloat64: |
| s->PutChar('{'); |
| offset = |
| DumpDataExtractor(DE, s, offset, eFormatFloat, 8, item_byte_size / 8, |
| item_byte_size / 8, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| |
| case eFormatVectorOfUInt128: |
| s->PutChar('{'); |
| offset = |
| DumpDataExtractor(DE, s, offset, eFormatHex, 16, item_byte_size / 16, |
| item_byte_size / 16, LLDB_INVALID_ADDRESS, 0, 0); |
| s->PutChar('}'); |
| break; |
| } |
| } |
| |
| // If anything was printed we want to catch the end of the last line. |
| // Since we will exit the for loop above before we get a chance to append to |
| // it normally. |
| if (offset > line_start_offset) { |
| if (item_format == eFormatBytesWithASCII) { |
| s->Printf("%*s", |
| static_cast<int>( |
| (num_per_line - (offset - line_start_offset)) * 3 + 2), |
| ""); |
| DumpDataExtractor(DE, s, line_start_offset, eFormatCharPrintable, 1, |
| offset - line_start_offset, SIZE_MAX, |
| LLDB_INVALID_ADDRESS, 0, 0); |
| } |
| |
| if (base_addr != LLDB_INVALID_ADDRESS && memory_tag_map) { |
| size_t line_len = offset - line_start_offset; |
| lldb::addr_t line_base = base_addr + (offset - start_offset - line_len) / |
| DE.getTargetByteSize(); |
| printMemoryTags(DE, s, line_base, line_len, memory_tag_map); |
| } |
| } |
| |
| return offset; // Return the offset at which we ended up |
| } |
| |
| void lldb_private::DumpHexBytes(Stream *s, const void *src, size_t src_len, |
| uint32_t bytes_per_line, |
| lldb::addr_t base_addr) { |
| DataExtractor data(src, src_len, lldb::eByteOrderLittle, 4); |
| DumpDataExtractor(data, s, |
| 0, // Offset into "src" |
| lldb::eFormatBytes, // Dump as hex bytes |
| 1, // Size of each item is 1 for single bytes |
| src_len, // Number of bytes |
| bytes_per_line, // Num bytes per line |
| base_addr, // Base address |
| 0, 0); // Bitfield info |
| } |
