[PATCH v3] elfcpp/dwarf.h: Add post DWARF5 constants to DW_LANG enum

[Alexandra Hájková]

Also add the post DWARF5 language codes to gold/gdb-index.cc
Gdb_index_info_reader::visit_top_die check as --gdb-index only
supports C and C++ languages and emits warning otherwise.
---
v3: Fix missing ','
Fix indentation

 elfcpp/dwarf.h    | 25 +++++++++++++++++++++++++
 gold/gdb-index.cc | 19 ++++++++++++++++++-
 2 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/elfcpp/dwarf.h b/elfcpp/dwarf.h
index 2adb8642019..1ce59c668f1 100644
--- a/elfcpp/dwarf.h
+++ b/elfcpp/dwarf.h
@@ -247,6 +247,31 @@ enum DW_LANG
   DW_LANG_C_plus_plus_14 = 0x0021,
   DW_LANG_Fortran03 = 0x0022,
   DW_LANG_Fortran08 = 0x0023,
+  DW_LANG_C_plus_plus_17 = 0x002a,
+  DW_LANG_C_plus_plus_20 = 0x002b,
+  DW_LANG_C17 = 0x002c,
+  DW_LANG_Fortran18 = 0x002d,
+  DW_LANG_Ada2005 = 0x002e,
+  DW_LANG_Ada2012 = 0x002f,
+  DW_LANG_HIP = 0x0030,
+  DW_LANG_Assembly = 0x0031,
+  DW_LANG_C_sharp = 0x0032,
+  DW_LANG_Mojo = 0x0033,
+  DW_LANG_GLSL = 0x0034,
+  DW_LANG_GLSL_ES = 0x0035,
+  DW_LANG_HLSL = 0x0036,
+  DW_LANG_OpenCL_CPP = 0x0037,
+  DW_LANG_CPP_for_OpenCL = 0x0038,
+  DW_LANG_SYCL = 0x0039,
+  DW_LANG_C_plus_plus_23 = 0x003a,
+  DW_LANG_Odin = 0x003b,
+  DW_LANG_P4 = 0x003c,
+  DW_LANG_Metal = 0x003d,
+  DW_LANG_C23 = 0x003e,
+  DW_LANG_Fortran23 = 0x003f,
+  DW_LANG_Ruby = 0x0040,
+  DW_LANG_Move = 0x0041,
+  DW_LANG_Hylo = 0x0042,
 
   DW_LANG_lo_user = 0x8000,	// Implementation-defined range start.
   DW_LANG_hi_user = 0xffff,	// Implementation-defined range start.
diff --git a/gold/gdb-index.cc b/gold/gdb-index.cc
index 4d0ae0941b5..c28c9854538 100644
--- a/gold/gdb-index.cc
+++ b/gold/gdb-index.cc
@@ -371,9 +371,26 @@ Gdb_index_info_reader::visit_top_die(Dwarf_die* die)
 		|| this->cu_language_ == elfcpp::DW_LANG_Fortran90
 		|| this->cu_language_ == elfcpp::DW_LANG_Java
 		|| this->cu_language_ == elfcpp::DW_LANG_Ada95
+		|| this->cu_language_ == elfcpp::DW_LANG_Ada2005
+		|| this->cu_language_ == elfcpp::DW_LANG_Ada2012
+		|| this->cu_language_ == elfcpp::DW_LANG_HIP
+		|| this->cu_language_ == elfcpp::DW_LANG_Assembly
+		|| this->cu_language_ == elfcpp::DW_LANG_C_sharp
+		|| this->cu_language_ == elfcpp::DW_LANG_Mojo
+		|| this->cu_language_ == elfcpp::DW_LANG_GLSL
+		|| this->cu_language_ == elfcpp::DW_LANG_GLSL_ES
+		|| this->cu_language_ == elfcpp::DW_LANG_HLSL
+		|| this->cu_language_ == elfcpp::DW_LANG_Odin
+		|| this->cu_language_ == elfcpp::DW_LANG_P4
+		|| this->cu_language_ == elfcpp::DW_LANG_Metal
 		|| this->cu_language_ == elfcpp::DW_LANG_Fortran95
 		|| this->cu_language_ == elfcpp::DW_LANG_Fortran03
-		|| this->cu_language_ == elfcpp::DW_LANG_Fortran08)
+		|| this->cu_language_ == elfcpp::DW_LANG_Fortran08
+		|| this->cu_language_ == elfcpp::DW_LANG_Fortran18
+		|| this->cu_language_ == elfcpp::DW_LANG_Fortran23
+		|| this->cu_language_ == elfcpp::DW_LANG_Ruby
+		|| this->cu_language_ == elfcpp::DW_LANG_Move
+		|| this->cu_language_ == elfcpp::DW_LANG_Hylo)
 	      {
 		gold_warning(_("%s: --gdb-index currently supports "
 			       "only C and C++ languages"),
-- 
2.47.0