[libcxx-commits] [libcxx] [libc++][test][VE] Add '-ldl' to support VE (PR #66609)

[Kazushi Marukawa via libcxx-commits]

https://github.com/kaz7 created https://github.com/llvm/llvm-project/pull/66609

Tests are linked under -nostdlib++ option, so it is required to add system's libraries correctly.  So, I add libdl.so which is required for VE.

>From b57423884ba67d4374fd6bd644c67c05fb2f6c1c Mon Sep 17 00:00:00 2001
From: "Kazushi (Jam) Marukawa" <marukawa at nec.com>
Date: Mon, 18 Sep 2023 06:30:58 +0200
Subject: [PATCH] [libc++][test][VE] Add '-ldl' to support VE

Tests are linked under -nostdlib++ option, so it is required to add
system's libraries correctly.  So, I add libdl.so which is required
for VE.
---
 libcxx/test/configs/llvm-libc++-shared.cfg.in | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/libcxx/test/configs/llvm-libc++-shared.cfg.in b/libcxx/test/configs/llvm-libc++-shared.cfg.in
index 143b3b3feae1109..bcf395cad1a1fe2 100644
--- a/libcxx/test/configs/llvm-libc++-shared.cfg.in
+++ b/libcxx/test/configs/llvm-libc++-shared.cfg.in
@@ -9,13 +9,20 @@ config.substitutions.append(('%{flags}',
 config.substitutions.append(('%{compile_flags}',
     '-nostdinc++ -I %{include} -I %{target-include} -I %{libcxx}/test/support'
 ))
-config.substitutions.append(('%{link_flags}',
-    '-nostdlib++ -L %{lib} -Wl,-rpath,%{lib} -lc++'
-))
 config.substitutions.append(('%{exec}',
     '%{executor} --execdir %T -- '
 ))
 
+if config.root.target_triple.startswith('ve-'):
+  # VE requires libdl library.
+  config.substitutions.append(('%{link_flags}',
+      '-nostdlib++ -L %{lib} -Wl,-rpath,%{lib} -lc++ -ldl'
+  ))
+else:
+  config.substitutions.append(('%{link_flags}',
+      '-nostdlib++ -L %{lib} -Wl,-rpath,%{lib} -lc++'
+  ))
+
 import os, site
 site.addsitedir(os.path.join('@LIBCXX_SOURCE_DIR@', 'utils'))
 import libcxx.test.params, libcxx.test.config