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AK: Port LEB128 to the new AK::Stream

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This commit is contained in:
Tim Schumacher 2023-01-29 13:09:25 +01:00 • committed by Andrew Kaster
parent 31f59855b4
commit 787f4d639a
10 changed files with 120 additions and 209 deletions
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40
Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
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@ -38,8 +38,6 @@ ErrorOr<void> LineProgram::parse_unit_header()
ErrorOr<void> LineProgram::parse_path_entries(Function<void(PathEntry& entry)> callback, PathListType list_type)
{
Core::Stream::WrapInAKInputStream wrapped_stream { m_stream };
if (m_unit_header.version() >= 5) {
auto path_entry_format_count = TRY(m_stream.read_value<u8>());
@ -47,16 +45,16 @@ ErrorOr<void> LineProgram::parse_path_entries(Function<void(PathEntry& entry)> c
for (u8 i = 0; i < path_entry_format_count; i++) {
UnderlyingType<ContentType> content_type;
LEB128::read_unsigned(wrapped_stream, content_type);
TRY(LEB128::read_unsigned(m_stream, content_type));
UnderlyingType<AttributeDataForm> data_form;
LEB128::read_unsigned(wrapped_stream, data_form);
TRY(LEB128::read_unsigned(m_stream, data_form));
format_descriptions.empend(static_cast<ContentType>(content_type), static_cast<AttributeDataForm>(data_form));
}
size_t paths_count = 0;
LEB128::read_unsigned(wrapped_stream, paths_count);
TRY(LEB128::read_unsigned(m_stream, paths_count));
for (size_t i = 0; i < paths_count; i++) {
PathEntry entry;
@ -88,10 +86,10 @@ ErrorOr<void> LineProgram::parse_path_entries(Function<void(PathEntry& entry)> c
entry.path = path;
if (list_type == PathListType::Filenames) {
size_t directory_index = 0;
LEB128::read_unsigned(wrapped_stream, directory_index);
TRY(LEB128::read_unsigned(m_stream, directory_index));
size_t _unused = 0;
LEB128::read_unsigned(wrapped_stream, _unused); // skip modification time
LEB128::read_unsigned(wrapped_stream, _unused); // skip file size
TRY(LEB128::read_unsigned(m_stream, _unused)); // skip modification time
TRY(LEB128::read_unsigned(m_stream, _unused)); // skip file size
entry.directory_index = directory_index;
dbgln_if(DWARF_DEBUG, "file: {}, directory index: {}", path, directory_index);
}
@ -99,7 +97,6 @@ ErrorOr<void> LineProgram::parse_path_entries(Function<void(PathEntry& entry)> c
}
}
VERIFY(!wrapped_stream.has_any_error());
return {};
}
@ -160,11 +157,8 @@ void LineProgram::reset_registers()
ErrorOr<void> LineProgram::handle_extended_opcode()
{
Core::Stream::WrapInAKInputStream wrapped_stream { m_stream };
size_t length = 0;
LEB128::read_unsigned(wrapped_stream, length);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_unsigned(m_stream, length));
auto sub_opcode = TRY(m_stream.read_value<u8>());
@ -183,8 +177,7 @@ ErrorOr<void> LineProgram::handle_extended_opcode()
case ExtendedOpcodes::SetDiscriminator: {
dbgln_if(DWARF_DEBUG, "SetDiscriminator");
size_t discriminator;
LEB128::read_unsigned(wrapped_stream, discriminator);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_unsigned(m_stream, discriminator));
break;
}
default:
@ -196,8 +189,6 @@ ErrorOr<void> LineProgram::handle_extended_opcode()
}
ErrorOr<void> LineProgram::handle_standard_opcode(u8 opcode)
{
Core::Stream::WrapInAKInputStream wrapped_stream { m_stream };
switch (opcode) {
case StandardOpcodes::Copy: {
append_to_line_info();
@ -205,8 +196,7 @@ ErrorOr<void> LineProgram::handle_standard_opcode(u8 opcode)
}
case StandardOpcodes::AdvancePc: {
size_t operand = 0;
LEB128::read_unsigned(wrapped_stream, operand);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_unsigned(m_stream, operand));
size_t delta = operand * m_unit_header.min_instruction_length();
dbgln_if(DWARF_DEBUG, "AdvancePC by: {} to: {:p}", delta, m_address + delta);
m_address += delta;
@ -214,8 +204,7 @@ ErrorOr<void> LineProgram::handle_standard_opcode(u8 opcode)
}
case StandardOpcodes::SetFile: {
size_t new_file_index = 0;
LEB128::read_unsigned(wrapped_stream, new_file_index);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_unsigned(m_stream, new_file_index));
dbgln_if(DWARF_DEBUG, "SetFile: new file index: {}", new_file_index);
m_file_index = new_file_index;
break;
@ -224,15 +213,13 @@ ErrorOr<void> LineProgram::handle_standard_opcode(u8 opcode)
// not implemented
dbgln_if(DWARF_DEBUG, "SetColumn");
size_t new_column;
LEB128::read_unsigned(wrapped_stream, new_column);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_unsigned(m_stream, new_column));
break;
}
case StandardOpcodes::AdvanceLine: {
ssize_t line_delta;
LEB128::read_signed(wrapped_stream, line_delta);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_signed(m_stream, line_delta));
VERIFY(line_delta >= 0 || m_line >= (size_t)(-line_delta));
m_line += line_delta;
dbgln_if(DWARF_DEBUG, "AdvanceLine: {}", m_line);
@ -253,8 +240,7 @@ ErrorOr<void> LineProgram::handle_standard_opcode(u8 opcode)
}
case StandardOpcodes::SetIsa: {
size_t isa;
LEB128::read_unsigned(wrapped_stream, isa);
TRY(wrapped_stream.try_handle_any_error());
TRY(LEB128::read_unsigned(m_stream, isa));
dbgln_if(DWARF_DEBUG, "SetIsa: {}", isa);
break;
}