debug/dwarf: formStrp uses a 64-bit value for 64-bit DWARF
No test as the only system I know that uses 64-bit DWARF is AIX. Backport of https://golang.org/cl/84379, which will be in Go 1.11. Backporting now for AIX support in gccgo. Reviewed-on: https://go-review.googlesource.com/87296 From-SVN: r256474
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@ -1,4 +1,4 @@
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19d94969c5202c07b3b166079b9f4ebbb52dfa6b
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1176dd2b53f2d2b826b599a126f3f9828283cec3
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The first line of this file holds the git revision number of the last
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merge done from the gofrontend repository.
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@ -461,7 +461,18 @@ func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry {
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case formString:
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val = b.string()
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case formStrp:
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off := b.uint32() // offset into .debug_str
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var off uint64 // offset into .debug_str
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is64, known := b.format.dwarf64()
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if !known {
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b.error("unknown size for DW_FORM_strp")
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} else if is64 {
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off = b.uint64()
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} else {
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off = uint64(b.uint32())
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}
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if uint64(int(off)) != off {
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b.error("DW_FORM_strp offset out of range")
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}
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if b.err != nil {
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return nil
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}
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