Files
clang-p2996/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugMacinfoEntry.cpp
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** 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
2016-09-06 20:57:50 +00:00

112 lines
3.1 KiB
C++

//===-- DWARFDebugMacinfoEntry.cpp ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "DWARFDebugMacinfoEntry.h"
#include "lldb/Core/Stream.h"
using namespace lldb_private;
using namespace std;
DWARFDebugMacinfoEntry::DWARFDebugMacinfoEntry()
: m_type_code(0), m_line(0), m_op2() {
m_op2.cstr = NULL;
}
DWARFDebugMacinfoEntry::~DWARFDebugMacinfoEntry() {}
const char *DWARFDebugMacinfoEntry::GetCString() const {
switch (m_type_code) {
case 0:
case DW_MACINFO_start_file:
case DW_MACINFO_end_file:
return NULL;
default:
break;
}
return m_op2.cstr;
}
void DWARFDebugMacinfoEntry::Dump(Stream *s) const {
if (m_type_code) {
s->PutCString(DW_MACINFO_value_to_name(m_type_code));
switch (m_type_code) {
case DW_MACINFO_define:
s->Printf(" line:%u #define %s\n", (uint32_t)m_line, m_op2.cstr);
break;
case DW_MACINFO_undef:
s->Printf(" line:%u #undef %s\n", (uint32_t)m_line, m_op2.cstr);
break;
default:
s->Printf(" line:%u str: '%s'\n", (uint32_t)m_line, m_op2.cstr);
break;
case DW_MACINFO_start_file:
s->Printf(" line:%u file index: '%u'\n", (uint32_t)m_line,
(uint32_t)m_op2.file_idx);
break;
case DW_MACINFO_end_file:
break;
}
} else {
s->PutCString(" END\n");
}
}
bool DWARFDebugMacinfoEntry::Extract(const DWARFDataExtractor &mac_info_data,
lldb::offset_t *offset_ptr) {
if (mac_info_data.ValidOffset(*offset_ptr)) {
m_type_code = mac_info_data.GetU8(offset_ptr);
switch (m_type_code) {
case DW_MACINFO_define:
case DW_MACINFO_undef:
// 2 operands:
// Arg 1: operand encodes the line number of the source line on which
// the relevant defining or undefining pre-processor directives
// appeared.
m_line = mac_info_data.GetULEB128(offset_ptr);
// Arg 2: define string
m_op2.cstr = mac_info_data.GetCStr(offset_ptr);
break;
case DW_MACINFO_start_file:
// 2 operands:
// Op 1: line number of the source line on which the inclusion
// pre-processor directive occurred.
m_line = mac_info_data.GetULEB128(offset_ptr);
// Op 2: a source file name index to a file number in the statement
// information table for the relevant compilation unit.
m_op2.file_idx = mac_info_data.GetULEB128(offset_ptr);
break;
case 0: // End of list
case DW_MACINFO_end_file:
// No operands
m_line = DW_INVALID_OFFSET;
m_op2.cstr = NULL;
break;
default:
// Vendor specific entries always have a ULEB128 and a string
m_line = mac_info_data.GetULEB128(offset_ptr);
m_op2.cstr = mac_info_data.GetCStr(offset_ptr);
break;
}
return true;
} else
m_type_code = 0;
return false;
}