debug/dwarf, debug/elf: support DWARF 5

Change-Id: I6e9d47865c198299d497911c58235cd40f775e34 Reviewed-on: https://go-review.googlesource.com/c/go/+/175138 Run-TryBot: Ian Lance Taylor <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Than McIntosh <[email protected]>
kkishi · Sep 3, 2019 · adf20ee · adf20ee
1 parent 663680b
commit adf20ee
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Showing 7 changed files with 470 additions and 51 deletions.
diff --git a/src/debug/dwarf/buf.go b/src/debug/dwarf/buf.go
@@ -99,6 +99,18 @@ func (b *buf) uint16() uint16 {
 	return b.order.Uint16(a)
 }
 
+func (b *buf) uint24() uint32 {
+	a := b.bytes(3)
+	if a == nil {
+		return 0
+	}
+	if b.dwarf.bigEndian {
+		return uint32(a[2]) | uint32(a[1])<<8 | uint32(a[0])<<16
+	} else {
+		return uint32(a[0]) | uint32(a[1])<<8 | uint32(a[2])<<16
+	}
+}
+
 func (b *buf) uint32() uint32 {
 	a := b.bytes(4)
 	if a == nil {