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ocamlopt -plugin is broken #7516

vicuna opened this Issue Apr 16, 2017 · 1 comment


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vicuna commented Apr 16, 2017

Original bug ID: 7516
Reporter: @whitequark
Assigned to: @dra27
Status: closed (set by @dra27 on 2017-04-16T08:46:43Z)
Resolution: fixed
Priority: normal
Severity: minor
Platform: Linux
Version: 4.04.0
Fixed in version: 4.04.1
Category: compiler driver

Bug description

It seems that some symbols are not exported properly from ocamlopt. This bug is actually extremely weird, because on my opam install (as is usual) both ocamlc and ocamlopt are native-code, but it works with ocamlc.

$ file which ocamlc
~/.opam/4.04.0+32bit/bin/ocamlc: symbolic link to ocamlc.opt
$ file which ocamlopt
~/.opam/4.04.0+32bit/bin/ocamlopt: symbolic link to ocamlopt.opt

Steps to reproduce

$ cat >
let () =
let x = [|0;1;2|] in (* allocate something *)
for i = 0 to 2 do print_int x.(i) done
$ ocamlbuild t.cmxs
$ ocamlopt -plugin _build/t.cmxs
File "none", line 1:
Error: error loading shared library: _build/t.cmxs: undefined symbol: caml_alloc3 while loading argument of -plugin


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vicuna commented Apr 16, 2017

Comment author: @dra27

This was fixed in #980 (#980) and is in OCaml 4.04.1

@vicuna vicuna closed this Apr 16, 2017

@vicuna vicuna added the bug label Mar 20, 2019

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