RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-02-27 06:08:11 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

llvm-dwarfdump: Make the "is debug info section" heuristic stricter so it doesn't accidentaly picks up the wrong section.

Browse Source 
Also add some validation code to the aranges section parser.

Fixes PR10926.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139701 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-09-14 17:28:13 +00:00
parent 0b7b6a0856
commit 1c0b24f91a
2 changed files with 15 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/DebugInfo/DWARFDebugArangeSet.cpp
View File

@ -72,6 +72,13 @@ DWARFDebugArangeSet::extract(DataExtractor data, uint32_t *offset_ptr) {
Header.AddrSize = data.getU8(offset_ptr);
Header.SegSize = data.getU8(offset_ptr);
// Perform basic validation of the header fields.
if (!data.isValidOffsetForDataOfSize(Offset, Header.Length) ||
(Header.AddrSize != 4 && Header.AddrSize != 8)) {
clear();
return false;
}
// The first tuple following the header in each set begins at an offset
// that is a multiple of the size of a single tuple (that is, twice the
// size of an address). The header is padded, if necessary, to the

12
tools/llvm-dwarfdump/llvm-dwarfdump.cpp
View File

@ -62,13 +62,17 @@ static void DumpInput(const StringRef &Filename) {
i->getName(name);
StringRef data;
i->getContents(data);
if (name.endswith("debug_info"))
if (name.startswith("__DWARF,"))
name = name.substr(8); // Skip "__DWARF," prefix.
name = name.substr(name.find_first_not_of("._")); // Skip . and _ prefixes.
if (name == "debug_info")
DebugInfoSection = data;
else if (name.endswith("debug_abbrev"))
else if (name == "debug_abbrev")
DebugAbbrevSection = data;
else if (name.endswith("debug_line"))
else if (name == "debug_line")
DebugLineSection = data;
else if (name.endswith("debug_aranges"))
else if (name == "debug_aranges")
DebugArangesSection = data;
}