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Accept version 3 .eh_frame unwinding data, as well as version 1.

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a=michaelrmmiller
r=jimblandy


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@947 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
jimblandy 2012-04-03 23:12:34 +00:00
parent a9d27c5ea0
commit c6485cb937
1 changed files with 8 additions and 14 deletions
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22
src/common/dwarf/dwarf2reader.cc
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@ -1857,20 +1857,14 @@ bool CallFrameInfo::ReadCIEFields(CIE *cie) {
cie->version = reader_->ReadOneByte(cursor);
cursor++;
// If we don't recognize the version, we can't parse any more fields
// of the CIE. For DWARF CFI, we handle versions 1 through 3 (there
// was never a version 2 of CFI data). For .eh_frame, we handle only
// version 1.
if (eh_frame_) {
if (cie->version != 1) {
reporter_->UnrecognizedVersion(cie->offset, cie->version);
return false;
}
} else {
if (cie->version < 1 || cie->version > 3) {
reporter_->UnrecognizedVersion(cie->offset, cie->version);
return false;
}
// If we don't recognize the version, we can't parse any more fields of the
// CIE. For DWARF CFI, we handle versions 1 through 3 (there was never a
// version 2 of CFI data). For .eh_frame, we handle versions 1 and 3 as well;
// the difference between those versions seems to be the same as for
// .debug_frame.
if (cie->version < 1 || cie->version > 3) {
reporter_->UnrecognizedVersion(cie->offset, cie->version);
return false;
}
const char *augmentation_start = cursor;