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debug/dwarf: formStrp uses a 64-bit value for 64-bit DWARF

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No test as the only system I know that uses 64-bit DWARF is AIX.

Change-Id: I24e225253075be188845656b6778993c2d24ebf5
Reviewed-on: https://go-review.googlesource.com/84379
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Ian Lance Taylor 2017-12-15 18:02:57 -08:00
parent 6977a3b257
commit ff3885dc11
1 changed files with 12 additions and 1 deletions
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13
src/debug/dwarf/entry.go
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@ -461,7 +461,18 @@ func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry {
case formString:
val = b.string()
case formStrp:
off := b.uint32() // offset into .debug_str
var off uint64 // offset into .debug_str
is64, known := b.format.dwarf64()
if !known {
b.error("unknown size for DW_FORM_strp")
} else if is64 {
off = b.uint64()
} else {
off = uint64(b.uint32())
}
if uint64(int(off)) != off {
b.error("DW_FORM_strp offset out of range")
}
if b.err != nil {
return nil
}