RISC-V: Support ELF attribute for gas and readelf.

[thirdparty/binutils-gdb.git] / gas / configure

diff --git a/gas/configure b/gas/configure
index ea85e1b43a32038c5bd8fc166df38d9374e0abed..64de9f19da510ef21636a8510c2e9951c87aef04 100755 (executable)
--- a/gas/configure
+++ b/gas/configure
@@ -809,6 +809,7 @@ enable_x86_relax_relocations
 enable_elf_stt_common
 enable_generate_build_notes
 enable_x86_used_note
+enable_default_riscv_attribute
 enable_werror
 enable_build_warnings
 with_cpu
@@ -1471,6 +1472,8 @@ Optional Features:
                           generate GNU Build notes if none are provided by the
                           input
   --enable-x86-used-note  generate GNU x86 used ISA and feature properties
+  --enable-default-riscv-attribute
+                          generate RISC-V arch attribute by default
   --enable-werror         treat compile warnings as errors
   --enable-build-warnings enable build-time compiler warnings
   --disable-nls           do not use Native Language Support
@@ -11337,7 +11340,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11340 "configure"
+#line 11343 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11443,7 +11446,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11446 "configure"
+#line 11449 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12125,6 +12128,16 @@ if test "${enable_x86_used_note+set}" = set; then :
 esac
 fi
 
+# Decide if the RISC-V ELF assembler should default to generating attribute.
+ac_default_generate_riscv_attr=unset
+# Provide a configuration option to override the default.
+# Check whether --enable-default-riscv-attribute was given.
+if test "${enable_default_riscv_attribute+set}" = set; then :
+  enableval=$enable_default_riscv_attribute; case "${enableval}" in
+  yes)  ac_default_generate_riscv_attr=1 ;;
+  no)   ac_default_generate_riscv_attr=0 ;;
+esac
+fi
 
 using_cgen=no
 
@@ -13102,6 +13115,23 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+if test ${ac_default_generate_riscv_attr} = unset; then
+    case ${target_os} in
+      elf)
+       ac_default_generate_riscv_attr=1
+       ;;
+      *)
+       ac_default_generate_riscv_attr=0
+       ;;
+  esac
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_RISCV_ATTR $ac_default_generate_riscv_attr
+_ACEOF
+
+
 if test x$ac_default_compressed_debug_sections = xyes ; then
 
 $as_echo "#define DEFAULT_FLAG_COMPRESS_DEBUG 1" >>confdefs.h