Date: Sun, 3 Oct 2021 10:20:12 GMT From: Dimitry Andric <dim@FreeBSD.org> To: ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org Subject: git: 9ce64e91907a - main - lang/(erlang(-runtime2[13])?): work around dtrace failures with clang 13 Message-ID: <202110031020.193AKCSr013859@gitrepo.freebsd.org>
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The branch main has been updated by dim (src committer): URL: https://cgit.FreeBSD.org/ports/commit/?id=9ce64e91907aaa43fc43a7b2faaae5bf99faaa56 commit 9ce64e91907aaa43fc43a7b2faaae5bf99faaa56 Author: Dimitry Andric <dim@FreeBSD.org> AuthorDate: 2021-10-02 14:52:35 +0000 Commit: Dimitry Andric <dim@FreeBSD.org> CommitDate: 2021-10-03 10:13:35 +0000 lang/(erlang(-runtime2[13])?): work around dtrace failures with clang 13 During an exp-run for llvm 13 (see bug 258209), it turned out that lang/erlang and lang/erlang-runtime2[13] fail to build with clang 13. What appears to happen is that for these versions of erlang, PGO is enabled, and it first builds a PGO-enabled beam.smp: gmake[5]: Entering directory '/wrkdirs/usr/ports/lang/erlang/work/otp-OTP-21.3.8.24/erts/emulator' if utils/gen_git_version amd64-portbld-freebsd14.0/gen_git_version.mk; then touch beam/erl_bif_info.c; fi echo " PROFILE beam.prof.smp" PROFILE beam.prof.smp rm -f obj/amd64-portbld-freebsd14.0/opt/smp/erl*.profraw set -e; LLVM_PROFILE_FILE="obj/amd64-portbld-freebsd14.0/opt/smp/erlc-%m.profraw" \ ERL_FLAGS="-emu_type prof +S 1" erlc -W -DPGO \ -o obj/amd64-portbld-freebsd14.0/opt/smp test/estone_SUITE.erl > obj/amd64-portbld-freebsd14.0/opt/smp/PROFILE_LOG after which it does a test run, and uses llvm-profdata to merge the profiling data into beam_emu_pu.o: llvm-profdata merge -output obj/amd64-portbld-freebsd14.0/opt/smp/default.profdata obj/amd64-portbld-freebsd14.0/opt/smp/*.profraw cc -fprofile-instr-use=obj/amd64-portbld-freebsd14.0/opt/smp/default.profdata -Werror=undef -Werror=implicit -Werror=return-type -O3 -fomit-frame-pointer -pipe -fno-omit-frame-pointer -DMAP_NORESERVE=0 -fstack-protector-strong -fno-strict-aliasing -I/wrkdirs/usr/ports/lang/erlang/work/otp-OTP-21.3.8.24/erts/amd64-portbld-freebsd14.0 -DHAVE_CONFIG_H -Wall -Wstrict-prototypes -Wmissing-prototypes -Wdeclaration-after-statement -DUSE_THREADS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS -Iamd64-portbld-freebsd14.0/opt/smp -Ibeam -Isys/unix -Isys/common -Iamd64-portbld-freebsd14.0 -Ipcre -Ihipe -I../include -I../include/amd64-portbld-freebsd14.0 -I../include/internal -I../include/internal/amd64-portbld-freebsd14.0 -c beam/beam_emu.c -o obj/amd64-portbld-freebsd14.0/opt/smp/beam_emu_pu.o Later, it runs dtrace over all the collected objects, and this dies: dtrace -G -C -Ibeam \ -s beam/erlang_dtrace.d \ -o obj/amd64-portbld-freebsd14.0/opt/smp/erlang_pu_dtrace.o ... long list of objects ... dtrace: failed to link script beam/erlang_dtrace.d: an error was encountered while processing obj/amd64-portbld-freebsd14.0/opt/smp/beam_emu_pu.o gmake[5]: *** [amd64-portbld-freebsd14.0/Makefile:1005: obj/amd64-portbld-freebsd14.0/opt/smp/erlang_pu_dtrace.o] Error 1 gmake[5]: Leaving directory '/wrkdirs/usr/ports/lang/erlang/work/otp-OTP-21.3.8.24/erts/emulator' Something in beam_emu_pu.o (emitted by clang or llvm 13) is tripping up dtrace, but I have very little knowledge about dtrace so I need help here. :) Now some other erlang runtimes such as lang/erlang-runtime24 *do* build successfully with clang 13, but this is only because upstream disabled the PGO feature, as a side effect of https://github.com/erlang/otp/commit/b165524c732 ("erts: Implement the BeamAsm JIT"): --- a/erts/configure.in +++ b/erts/configure.in ... @@ -704,6 +719,9 @@ else fi fi +dnl Disable pgo for now +USE_PGO=false + AC_SUBST(USE_PGO) AC_SUBST(PROFILE_COMPILER) I am unsure why upstream disabled this "for now", as it has been disabled for more than a year. So, for now, work around the dtrace failures by disabling PGO using the configure flag --disable-pgo, when building with clang >= 13. PR: 258494 Approved by: maintainer timeout (2 weeks) MFH: 2021Q4 --- lang/erlang-runtime21/Makefile | 7 ++++++- lang/erlang-runtime23/Makefile | 7 ++++++- lang/erlang/Makefile | 7 ++++++- 3 files changed, 18 insertions(+), 3 deletions(-) diff --git a/lang/erlang-runtime21/Makefile b/lang/erlang-runtime21/Makefile index ab3a649924b3..1ea27a8c3200 100644 --- a/lang/erlang-runtime21/Makefile +++ b/lang/erlang-runtime21/Makefile @@ -15,7 +15,7 @@ LICENSE= APACHE20 BROKEN_sparc64= Fails to build: error: fp_except undeclared -USES= autoreconf:build cpe gmake ncurses perl5 +USES= compiler autoreconf:build cpe gmake ncurses perl5 USE_GITHUB= nodefault GH_ACCOUNT= erlang:otp,corba GH_PROJECT= otp:otp corba:corba @@ -95,6 +95,11 @@ WX_VARS= USE_GL="gl glu" \ .include <bsd.port.pre.mk> +.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 130 +# PR 258494 +CONFIGURE_ARGS+= --disable-pgo +.endif + .if ${OPSYS} == FreeBSD CFLAGS+= -DMAP_NORESERVE=0 .endif diff --git a/lang/erlang-runtime23/Makefile b/lang/erlang-runtime23/Makefile index 4a585d177c6e..5bff1294db73 100644 --- a/lang/erlang-runtime23/Makefile +++ b/lang/erlang-runtime23/Makefile @@ -15,7 +15,7 @@ LICENSE= APACHE20 BROKEN_sparc64= Fails to build: error: fp_except undeclared -USES= autoreconf:build cpe gmake ncurses perl5 +USES= autoreconf:build compiler cpe gmake ncurses perl5 USE_GITHUB= nodefault GH_ACCOUNT= erlang:otp,corba GH_PROJECT= otp:otp corba:corba @@ -94,6 +94,11 @@ WX_VARS= USE_GL="gl glu" \ .include <bsd.port.pre.mk> +.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 130 +# PR 258494 +CONFIGURE_ARGS+= --disable-pgo +.endif + .if ${OPSYS} == FreeBSD CFLAGS+= -DMAP_NORESERVE=0 .endif diff --git a/lang/erlang/Makefile b/lang/erlang/Makefile index 867c69b8c4c0..baa0bf975b30 100644 --- a/lang/erlang/Makefile +++ b/lang/erlang/Makefile @@ -15,7 +15,7 @@ LICENSE= APACHE20 BROKEN_sparc64= Fails to build: error: fp_except undeclared -USES= cpe gmake ncurses perl5 +USES= compiler cpe gmake ncurses perl5 CPE_VENDOR= erlang CPE_PRODUCT= erlang/otp USE_GITHUB= nodefault @@ -106,6 +106,11 @@ WX_VARS= USE_GL="gl glu" \ .include <bsd.port.pre.mk> +.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 130 +# PR 258494 +CONFIGURE_ARGS+= --disable-pgo +.endif + .if ${OPSYS} == FreeBSD CFLAGS+= -DMAP_NORESERVE=0 .endif
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