Date: Tue, 13 Feb 2018 15:36:34 +0100 From: Matúš Olekšák <oleksak.matus@...il.com> To: musl@...ts.openwall.com Subject: Re: shmctl not found when compiling compiler-rt I assumed it's the same problem a had last week on pure llvm environment and I discovered bug in compiler-rt detection which solves my patch. 2018-02-13 15:33 GMT+01:00 Dmitry Golovin <dima@...ovin.in>: > Thank you for the patch, but I don't think it is relevant to this problem. > > If you take a look at my build script, you'll see that I don't need it: > https://github.com/tpimh/ngtc/blob/alpine/build.sh#L73 > > Regards, > Dmitry > > 13.02.2018, 16:31, "Matúš Olekšák" <oleksak.matus@...il.com>: > > Try this patch to correctly link compiler-rt. > > > > 2018-02-13 15:15 GMT+01:00 Szabolcs Nagy <nsz@...t70.net>: > >> * Dmitry Golovin <dima@...ovin.in> [2018-02-13 15:34:34 +0200]: > >>> I'm trying to compile compiler-rt with musl and it used to be fine, > but I can't succeed with recent versions of compiler-rt. > >>> > >>> The compilation fails because of the lack of real_shmctl while musl > clearly has shmctl: http://git.musl-libc.org/cgit/ > musl/tree/src/ipc/shmctl.c > >>> > >>> Here is the complete output: > >>> > >>> llvm/projects/compiler-rt/lib/msan/msan_interceptors.cc:1446:15: > error: no member named 'real_shmctl' in namespace '__interception'; did you > mean 'real_ioctl'? > >>> int res = REAL(shmctl)(shmid, shmctl_ipc_stat, &ds); > >>> ^~~~~~~~~~~~ > >> > >> there should be a > >> > >> DECLARE_REAL(int, shmctl, int shmid, int cmd, void *buf) > >> > >> in that file which defines __interception::real_shmctl. > >> > >>> To compile without glibc on linux using this patch: > >>> https://github.com/tpimh/ngtc/blob/alpine/patch/compiler-rt- > 01-sanitizer-nongnu.patch > >>> > >>> Regards, > >>> Dmitry > Content of type "text/html" skipped
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