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Do not attempt to dlopen PIE objects, which was disallowed with glibc 2.30.
https://gitlab.haskell.org/ghc/ghc/issues/17952
https://sourceware.org/bugzilla/show_bug.cgi?id=24323
Patch submitted upstream:
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/2947
diff --git a/testsuite/tests/dynlibs/Makefile b/testsuite/tests/dynlibs/Makefile
--- a/testsuite/tests/dynlibs/Makefile
+++ b/testsuite/tests/dynlibs/Makefile
@@ -60,6 +60,4 @@ T5373:
.PHONY: T13702
T13702:
'$(TEST_HC)' -v0 -dynamic -rdynamic -fPIC -pie T13702.hs
- '$(TEST_HC)' -v0 -dynamic T13702a.hs
- ./T13702 # first make sure executable itself works
- ./T13702a # then try dynamically loading it as library
+ ./T13702
diff --git a/testsuite/tests/dynlibs/T13702.hs b/testsuite/tests/dynlibs/T13702.hs
--- a/testsuite/tests/dynlibs/T13702.hs
+++ b/testsuite/tests/dynlibs/T13702.hs
@@ -2,8 +2,3 @@
main :: IO ()
main = putStrLn "hello world"
-
-foreign export ccall "hello" hello :: IO ()
-
-hello :: IO ()
-hello = putStrLn "hello world again"
diff --git a/testsuite/tests/dynlibs/T13702.stdout b/testsuite/tests/dynlibs/T13702.stdout
--- a/testsuite/tests/dynlibs/T13702.stdout
+++ b/testsuite/tests/dynlibs/T13702.stdout
@@ -1,2 +1 @@
hello world
-hello world again
diff --git a/testsuite/tests/dynlibs/T13702a.hs b/testsuite/tests/dynlibs/T13702a.hs
deleted file mode 100644
--- a/testsuite/tests/dynlibs/T13702a.hs
+++ /dev/null
@@ -1,12 +0,0 @@
-{-# LANGUAGE ForeignFunctionInterface #-}
-
-import Foreign
-import System.Posix.DynamicLinker
-
-main :: IO ()
-main = do
- dl <- dlopen "./T13702" [RTLD_NOW]
- funptr <- dlsym dl "hello" :: IO (FunPtr (IO ()))
- mkAction funptr
-
-foreign import ccall "dynamic" mkAction :: FunPtr (IO ()) -> IO ()
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