Bug 32001 - Cannot use upstream boehm-gc
Summary: Cannot use upstream boehm-gc
Alias: None
Product: Runtime
Classification: Mono
Component: General ()
Version: 4.0.0
Hardware: PC Other
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-07-16 05:15 UTC by Rainer Orth
Modified: 2015-12-21 01:56 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

proposed patch (989 bytes, patch)
2015-07-16 05:16 UTC, Rainer Orth

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Description Rainer Orth 2015-07-16 05:15:56 UTC
After resolving the issues described in Bug 32000, I got link errors when using upstream libgc (either 7.2f or 7.4.2)
on 64-bit Solaris 11/x86, although the issue is generic:

  CCLD     pedump
Undefined			first referenced
 symbol  			    in file
GC_toggleref_add                    ./.libs/libmonoruntime.a(libmonoruntime_la-boehm-gc.o)
GC_set_finalizer_notify_proc        ./.libs/libmonoruntime.a(libmonoruntime_la-boehm-gc.o)
GC_toggleref_register_callback      ./.libs/libmonoruntime.a(libmonoruntime_la-boehm-gc.o)

  not in upstream gc 7.2f, 7.4.0

GC_unregister_long_link             ./.libs/libmonoruntime.a(libmonoruntime_la-boehm-gc.o)
GC_REGISTER_LONG_LINK               ./.libs/libmonoruntime.a(libmonoruntime_la-boehm-gc.o)

  only in upstream 7.4.0

Given that the latter two aren't in gc 7.2f, that version isn't probably an option any longer, unlike for mono 3.2.6.

To work around this, I've gone for gc 7.4.2 instead, and used the attached patch to stub out the calls to the former
three functions in mono/metadata/boehm-gc.c, which allowed the links to complete.

Comment 1 Rainer Orth 2015-07-16 05:16:50 UTC
Created attachment 12057 [details]
proposed patch
Comment 2 Rodrigo Kumpera 2015-12-21 01:56:51 UTC
Upstream added those features.