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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug gcov-profile/99406] [11 regression] MAP_ANONYMOUS undeclared in libgcov.h
Date: Fri, 05 Mar 2021 13:37:56 +0000 [thread overview]
Message-ID: <bug-99406-4-EudQnn8re4@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-99406-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99406
--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Rainer Orth from comment #0)
> The unconditional use of MAP_ANONYMOUS in libgcov.h broke Mac OS X
> 10.7/Darwin 11
> bootstrap:
>
> In file included from
> /vol/gcc/src/hg/master/darwin/libgcc/libgcov-merge.c:26:
> /vol/gcc/src/hg/master/darwin/libgcc/libgcov.h: In function 'malloc_mmap':
> In file included from
> /vol/gcc/src/hg/master/darwin/libgcc/libgcov-merge.c:26:
> /vol/gcc/src/hg/master/darwin/libgcc/libgcov.h: In function 'malloc_mmap':
> /vol/gcc/src/hg/master/darwin/libgcc/libgcov.h:420:30: error:
> 'MAP_ANONYMOUS' undeclared (first use in this function); did you mean
> 'MAP_ANON'?
> 420 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
> | ^~~~~~~~~~~~~
> | MAP_ANON
> /vol/gcc/src/hg/master/darwin/libgcc/libgcov.h:420:30: note: each undeclared
> identifier is reported only once for each function it appears in
>
> I haven't checked which macOS version introduced MAP_ANONYMOUS as alias for
> MAP_ANON, but macOS 11/Darwin 20 has it.
I think from darwin15 / macOS 10.11
/opt/iains/SDKs/darwin15/usr/include/sys/mman.h:#define MAP_ANONYMOUS
MAP_ANON
/opt/iains/SDKs/darwin16/usr/include/sys/mman.h:#define MAP_ANONYMOUS
MAP_ANON
/opt/iains/SDKs/darwin17/usr/include/sys/mman.h:#define MAP_ANONYMOUS
MAP_ANON
/opt/iains/SDKs/darwin18/usr/include/sys/mman.h:#define MAP_ANONYMOUS
MAP_ANON
/opt/iains/SDKs/darwin19/usr/include/sys/mman.h:#define MAP_ANONYMOUS
MAP_ANON
next prev parent reply other threads:[~2021-03-05 13:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 13:32 [Bug gcov-profile/99406] New: " ro at gcc dot gnu.org
2021-03-05 13:33 ` [Bug gcov-profile/99406] " ro at gcc dot gnu.org
2021-03-05 13:37 ` iains at gcc dot gnu.org [this message]
2021-03-05 13:39 ` jakub at gcc dot gnu.org
2021-03-05 13:42 ` marxin at gcc dot gnu.org
2021-03-05 13:43 ` jakub at gcc dot gnu.org
2021-03-06 15:23 ` cvs-commit at gcc dot gnu.org
2021-03-06 15:24 ` jakub at gcc dot gnu.org
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