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a156efdf71
See http://caml.inria.fr/mantis/view.php?id=4166 If we call only external functions from a module, then its 'let _' bindings don't get executed, which means that the exceptions don't get registered for use in the C code. This in turn causes llvm_raise to call raise_with_arg() with a NULL pointer and cause a segmentation fault. The workaround is to declare all 'external' functions as 'val' in these .mli files. Also added a separate testcase (the testcase must call only external functions for the bug to occur). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122497 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
596 B
OCaml
17 lines
596 B
OCaml
(* RUN: %ocamlopt -warn-error A llvm.cmxa llvm_bitreader.cmxa llvm_executionengine.cmxa %s -o %t
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* RUN: %t </dev/null
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*)
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let context = Llvm.global_context ()
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(* this used to crash, we must not use 'external' in .mli files, but 'val' if we
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* want the let _ bindings executed, see http://caml.inria.fr/mantis/view.php?id=4166 *)
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let _ =
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try
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ignore (Llvm_bitreader.get_module context (Llvm.MemoryBuffer.of_stdin ()))
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with
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Llvm_bitreader.Error _ -> ();;
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let _ =
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try
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ignore (Llvm.MemoryBuffer.of_file "/path/to/nonexistent/file")
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with
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Llvm.IoError _ -> ();;
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