6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-21 02:24:22 +00:00
Code Issues Projects Releases Wiki Activity

DebugInfo library: add support for fetching absolute paths to source files

Browse Source 
(instead of basenames) from DWARF. Use this behavior in llvm-dwarfdump tool.

Reviewed by Benjamin Kramer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160496 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexey Samsonov
2012-07-19 07:03:58 +00:00
parent 72ea0c9ffa
commit 71d94f8055
10 changed files with 69 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
lib/DebugInfo/DWARFContext.cpp
View File

@ -8,8 +8,10 @@
//===----------------------------------------------------------------------===//
#include "DWARFContext.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
using namespace llvm;
@ -148,8 +150,8 @@ DILineInfo DWARFContext::getLineInfoForAddress(uint64_t address,
DWARFCompileUnit *cu = getCompileUnitForOffset(cuOffset);
if (!cu)
return DILineInfo();
const char *fileName = "<invalid>";
const char *functionName = "<invalid>";
SmallString<16> fileName("<invalid>");
SmallString<16> functionName("<invalid>");
uint32_t line = 0;
uint32_t column = 0;
if (specifier.needs(DILineInfoSpecifier::FunctionName)) {
@ -171,7 +173,29 @@ DILineInfo DWARFContext::getLineInfoForAddress(uint64_t address,
if (rowIndex != -1U) {
const DWARFDebugLine::Row &row = lineTable->Rows[rowIndex];
// Take file/line info from the line table.
fileName = lineTable->Prologue.FileNames[row.File - 1].Name.c_str();
const DWARFDebugLine::FileNameEntry &fileNameEntry =
lineTable->Prologue.FileNames[row.File - 1];
fileName = fileNameEntry.Name;
if (specifier.needs(DILineInfoSpecifier::AbsoluteFilePath) &&
sys::path::is_relative(fileName.str())) {
// Append include directory of file (if it is present in line table)
// and compilation directory of compile unit to make path absolute.
const char *includeDir = 0;
if (uint64_t includeDirIndex = fileNameEntry.DirIdx) {
includeDir = lineTable->Prologue
.IncludeDirectories[includeDirIndex - 1];
}
SmallString<16> absFileName;
if (includeDir == 0 || sys::path::is_relative(includeDir)) {
if (const char *compilationDir = cu->getCompilationDir())
sys::path::append(absFileName, compilationDir);
}
if (includeDir) {
sys::path::append(absFileName, includeDir);
}
sys::path::append(absFileName, fileName.str());
fileName = absFileName;
}
line = row.Line;
column = row.Column;
}