[PATCH] gold: Skip address size and segment selector for DWARF5

[H.J. Lu]

The .debug_line secton in DWARF5 has a byte for address size and a byte
for segment selector after DWARF version.  Skip them for DWARF5.

	PR gold/27246
	* dwarf_reader.cc (Sized_dwarf_line_info::read_header_prolog):
	Skip address size and segment selector for DWARF5.
---
 gold/dwarf_reader.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gold/dwarf_reader.cc b/gold/dwarf_reader.cc
index 487376965db..f0e6b89bde2 100644
--- a/gold/dwarf_reader.cc
+++ b/gold/dwarf_reader.cc
@@ -1658,6 +1658,10 @@ Sized_dwarf_line_info<size, big_endian>::read_header_prolog(
   header_.version = elfcpp::Swap_unaligned<16, big_endian>::readval(lineptr);
   lineptr += 2;
 
+  // Skip address size and segment selector for DWARF5.
+  if (header_.version >= 5)
+    lineptr += 2;
+
   if (header_.offset_size == 4)
     header_.prologue_length = elfcpp::Swap_unaligned<32, big_endian>::readval(lineptr);
   else
-- 
2.29.2