b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
243 lines
7.3 KiB
C++
243 lines
7.3 KiB
C++
//===-- LineEntry.cpp -------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/LineEntry.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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using namespace lldb_private;
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LineEntry::LineEntry()
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: range(), file(), line(LLDB_INVALID_LINE_NUMBER), column(0),
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is_start_of_statement(0), is_start_of_basic_block(0), is_prologue_end(0),
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is_epilogue_begin(0), is_terminal_entry(0) {}
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LineEntry::LineEntry(const lldb::SectionSP §ion_sp,
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lldb::addr_t section_offset, lldb::addr_t byte_size,
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const FileSpec &_file, uint32_t _line, uint16_t _column,
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bool _is_start_of_statement, bool _is_start_of_basic_block,
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bool _is_prologue_end, bool _is_epilogue_begin,
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bool _is_terminal_entry)
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: range(section_sp, section_offset, byte_size), file(_file),
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original_file(_file), line(_line), column(_column),
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is_start_of_statement(_is_start_of_statement),
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is_start_of_basic_block(_is_start_of_basic_block),
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is_prologue_end(_is_prologue_end), is_epilogue_begin(_is_epilogue_begin),
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is_terminal_entry(_is_terminal_entry) {}
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void LineEntry::Clear() {
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range.Clear();
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file.Clear();
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original_file.Clear();
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line = LLDB_INVALID_LINE_NUMBER;
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column = 0;
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is_start_of_statement = 0;
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is_start_of_basic_block = 0;
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is_prologue_end = 0;
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is_epilogue_begin = 0;
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is_terminal_entry = 0;
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}
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bool LineEntry::IsValid() const {
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return range.GetBaseAddress().IsValid() && line != LLDB_INVALID_LINE_NUMBER;
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}
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bool LineEntry::DumpStopContext(Stream *s, bool show_fullpaths) const {
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bool result = false;
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if (file) {
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if (show_fullpaths)
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file.Dump(s);
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else
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file.GetFilename().Dump(s);
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if (line)
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s->PutChar(':');
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result = true;
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}
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if (line)
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s->Printf("%u", line);
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else
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result = false;
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return result;
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}
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bool LineEntry::Dump(Stream *s, Target *target, bool show_file,
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Address::DumpStyle style,
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Address::DumpStyle fallback_style, bool show_range) const {
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if (show_range) {
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// Show address range
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if (!range.Dump(s, target, style, fallback_style))
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return false;
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} else {
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// Show address only
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if (!range.GetBaseAddress().Dump(s, target, style, fallback_style))
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return false;
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}
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if (show_file)
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*s << ", file = " << file;
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if (line)
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s->Printf(", line = %u", line);
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if (column)
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s->Printf(", column = %u", column);
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if (is_start_of_statement)
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*s << ", is_start_of_statement = TRUE";
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if (is_start_of_basic_block)
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*s << ", is_start_of_basic_block = TRUE";
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if (is_prologue_end)
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*s << ", is_prologue_end = TRUE";
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if (is_epilogue_begin)
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*s << ", is_epilogue_begin = TRUE";
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if (is_terminal_entry)
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*s << ", is_terminal_entry = TRUE";
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return true;
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}
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bool LineEntry::GetDescription(Stream *s, lldb::DescriptionLevel level,
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CompileUnit *cu, Target *target,
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bool show_address_only) const {
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if (level == lldb::eDescriptionLevelBrief ||
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level == lldb::eDescriptionLevelFull) {
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if (show_address_only) {
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range.GetBaseAddress().Dump(s, target, Address::DumpStyleLoadAddress,
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Address::DumpStyleFileAddress);
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} else {
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range.Dump(s, target, Address::DumpStyleLoadAddress,
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Address::DumpStyleFileAddress);
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}
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*s << ": " << file;
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if (line) {
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s->Printf(":%u", line);
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if (column)
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s->Printf(":%u", column);
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}
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if (level == lldb::eDescriptionLevelFull) {
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if (is_start_of_statement)
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*s << ", is_start_of_statement = TRUE";
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if (is_start_of_basic_block)
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*s << ", is_start_of_basic_block = TRUE";
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if (is_prologue_end)
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*s << ", is_prologue_end = TRUE";
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if (is_epilogue_begin)
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*s << ", is_epilogue_begin = TRUE";
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if (is_terminal_entry)
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*s << ", is_terminal_entry = TRUE";
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} else {
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if (is_terminal_entry)
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s->EOL();
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}
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} else {
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return Dump(s, target, true, Address::DumpStyleLoadAddress,
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Address::DumpStyleModuleWithFileAddress, true);
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}
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return true;
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}
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bool lldb_private::operator<(const LineEntry &a, const LineEntry &b) {
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return LineEntry::Compare(a, b) < 0;
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}
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int LineEntry::Compare(const LineEntry &a, const LineEntry &b) {
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int result = Address::CompareFileAddress(a.range.GetBaseAddress(),
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b.range.GetBaseAddress());
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if (result != 0)
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return result;
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const lldb::addr_t a_byte_size = a.range.GetByteSize();
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const lldb::addr_t b_byte_size = b.range.GetByteSize();
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if (a_byte_size < b_byte_size)
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return -1;
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if (a_byte_size > b_byte_size)
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return +1;
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// Check for an end sequence entry mismatch after we have determined
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// that the address values are equal. If one of the items is an end
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// sequence, we don't care about the line, file, or column info.
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if (a.is_terminal_entry > b.is_terminal_entry)
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return -1;
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if (a.is_terminal_entry < b.is_terminal_entry)
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return +1;
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if (a.line < b.line)
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return -1;
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if (a.line > b.line)
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return +1;
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if (a.column < b.column)
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return -1;
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if (a.column > b.column)
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return +1;
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return FileSpec::Compare(a.file, b.file, true);
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}
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AddressRange LineEntry::GetSameLineContiguousAddressRange() const {
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// Add each LineEntry's range to complete_line_range until we find
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// a different file / line number.
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AddressRange complete_line_range = range;
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while (true) {
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SymbolContext next_line_sc;
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Address range_end(complete_line_range.GetBaseAddress());
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range_end.Slide(complete_line_range.GetByteSize());
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range_end.CalculateSymbolContext(&next_line_sc,
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lldb::eSymbolContextLineEntry);
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if (next_line_sc.line_entry.IsValid() &&
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next_line_sc.line_entry.range.GetByteSize() > 0 &&
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original_file == next_line_sc.line_entry.original_file) {
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// Include any line 0 entries - they indicate that this is
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// compiler-generated code
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// that does not correspond to user source code.
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if (next_line_sc.line_entry.line == 0) {
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complete_line_range.SetByteSize(
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complete_line_range.GetByteSize() +
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next_line_sc.line_entry.range.GetByteSize());
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continue;
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}
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if (line == next_line_sc.line_entry.line) {
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// next_line_sc is the same file & line as this LineEntry, so extend our
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// AddressRange by its size and continue to see if there are more
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// LineEntries
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// that we can combine.
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complete_line_range.SetByteSize(
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complete_line_range.GetByteSize() +
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next_line_sc.line_entry.range.GetByteSize());
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continue;
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}
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}
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break;
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}
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return complete_line_range;
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}
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void LineEntry::ApplyFileMappings(lldb::TargetSP target_sp) {
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if (target_sp) {
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// Apply any file remappings to our file
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FileSpec new_file_spec;
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if (target_sp->GetSourcePathMap().FindFile(original_file, new_file_spec))
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file = new_file_spec;
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}
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}
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