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debug/dwarf: skip over zero-length compilation units
DWARF sections generated by mingw-clang seem to include these (not often - only one out of many in the binary that I am looking at). Skipping over them, everything parses correctly. This makes TestDefaultLinkerDWARF pass on windows/arm64. Change-Id: Ie4a7daa1423f51cbc8c4aac88b1d27c3b52ee880 Reviewed-on: https://go-review.googlesource.com/c/go/+/312031 Trust: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
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@ -48,7 +48,9 @@ func (d *Data) parseUnits() ([]unit, error) {
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break
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}
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b.skip(int(len))
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nunit++
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if len > 0 {
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nunit++
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}
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}
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if b.err != nil {
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return nil, b.err
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@ -61,7 +63,9 @@ func (d *Data) parseUnits() ([]unit, error) {
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u := &units[i]
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u.base = b.off
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var n Offset
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n, u.is64 = b.unitLength()
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for n == 0 {
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n, u.is64 = b.unitLength()
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}
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dataOff := b.off
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vers := b.uint16()
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if vers < 2 || vers > 5 {
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