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re PR go/68072 (malformed DWARF TagVariable entry)

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PR go/68072
    cmd/cgo: ignore vars with no name or type if they have a AttrSpecification
    
    Backport of master CL https://golang.org/cl/17151.
    
    Fixes https://gcc.gnu.org/PR/68072.
    
    Reviewed-on: https://go-review.googlesource.com/17152

From-SVN: r230685
This commit is contained in:
Ian Lance Taylor 2015-11-20 22:48:47 +00:00
parent 478c6ec632
commit 4944c7791b
2 changed files with 6 additions and 1 deletions
gcc/go/gofrontend
MERGE
libgo/go/cmd/cgo
gcc.go

2
gcc/go/gofrontend/MERGE

@ -1,4 +1,4 @@
d52835c9376985f92f35c32af5f1808239981536
128d5b14b8ab967cb61c01a9b2c596bda7d04c63
The first line of this file holds the git revision number of the last
merge done from the gofrontend repository.

5
libgo/go/cmd/cgo/gcc.go

@ -490,6 +490,11 @@ func (p *Package) loadDWARF(f *File, names []*Name) {
name, _ := e.Val(dwarf.AttrName).(string)
typOff, _ := e.Val(dwarf.AttrType).(dwarf.Offset)
if name == "" || typOff == 0 {
if e.Val(dwarf.AttrSpecification) != nil {
// Since we are reading all the DWARF,
// assume we will see the variable elsewhere.
break
}
fatalf("malformed DWARF TagVariable entry")
}
if !strings.HasPrefix(name, "__cgo__") {