"make -j4" failed in the dir p4c/build

[chenxiang2019]

Hello,

I'm tring p4c in these days. But when I follow the instructions that used to install p4c, I got stuck with one error so that I cannot find a suitable way to resolve it.

My System Settings

• Ubuntu 14.04, 64bit

• gcc version:

gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

My Steps

1.Update gcc to the version 4.9.4

2.Install the necessary dependencies, including protobuf.

3.follow the instructions of README:

./bootstrap.sh
cd build
make -j4
make check -j4

Error Log:

flex  -t ../tools/ir-generator/ir-generator-lex.l > tools/ir-generator/ir-generator-lex.c
  YACC     frontends/parsers/p4/p4parser.cpp
  YACC     frontends/parsers/v1/v1parser.cpp
/usr/local/bin/protoc /home/wasdns/p4c/build/../control-plane/PI/proto/p4/config/p4info.proto --cpp_out control-plane -I/home/wasdns/p4c/build/../control-plane/PI/proto
  YACC     tools/ir-generator/ir-generator.cpp
/home/wasdns/p4c/build/../tools/ir-generator/ir-generator.ypp: warning: 4 shift/reduce conflicts [-Wconflicts-sr]
(CDPATH="${ZSH_VERSION+.}:" && cd .. && /bin/bash /home/wasdns/p4c/missing autoheader)
updating tools/ir-generator/ir-generator.output
updating tools/ir-generator/ir-generator.hpp
  CXX      tools/ir-generator/ir-generator.o
rm -f stamp-h1
touch ../config.h.in
  CXX      unified-sources-irgenerator-0.o
updating frontends/parsers/v1/stack.hh
updating frontends/parsers/p4/stack.hh
updating frontends/parsers/p4/p4parser.output
updating frontends/parsers/v1/v1parser.output
updating frontends/parsers/p4/p4parser.hpp
  CXX      unified-sources-libp4ctoolkit_a-0.o
updating frontends/parsers/v1/v1parser.hpp
  CXX      unified-sources-libp4ctoolkit_a-1.o
cd . && /bin/bash ./config.status config.h
  AR       libp4ctoolkit.a
config.status: creating config.h
config.status: config.h is unchanged
  CXXLD    irgenerator
./irgenerator -t ir/gen-tree-macro.h -i ir/ir-generated.cpp ../ir/base.def ../ir/type.def ../ir/expression.def ../ir/ir.def ../ir/v1.def ../frontends/p4-14/ir-v1.def ../backends/bmv2/bmv2.def >ir/ir-generated.h || ( rm ir/ir-generated.h && false )
make  all-am
make[1]: Entering directory `/home/wasdns/p4c/build'
  LEX      frontends/parsers/v1/v1lexer.cc
  CXX      frontends/parsers/v1/v1parser.lo
  LEX      frontends/parsers/p4/p4lexer.cc
  CXX      unified-sources-p4c_bm2_ss-0.o
  CXX      unified-sources-p4c_bm2_ss-1.o
make[2]: Entering directory `/home/wasdns/p4c/build'
 /bin/mkdir -p '/home/wasdns/p4c/build/p4c_src'
 /usr/bin/install -c -m 644 ../tools/driver/p4c_src/main.py ../tools/driver/p4c_src/util.py ../tools/driver/p4c_src/config.py ../tools/driver/p4c_src/__init__.py ../tools/driver/p4c_src/p4c.bmv2.cfg ../tools/driver/p4c_src/p4c.ebpf.cfg '/home/wasdns/p4c/build/p4c_src'
Byte-compiling python modules...
main.pyutil.pyconfig.py__init__.py
Byte-compiling python modules (optimized versions) ...
main.pyutil.pyconfig.py__init__.py
 /bin/mkdir -p '/home/wasdns/p4c/build/p4include'
 /usr/bin/install -c -m 644 ../backends/ebpf/p4include/ebpf_model.p4 ../p4include/core.p4 ../p4include/p4d2model.p4 ../p4include/psa.p4 ../p4include/v1model.p4 '/home/wasdns/p4c/build/p4include'
make  install-data-hook
make[3]: Entering directory `/home/wasdns/p4c/build'
make[3]: Leaving directory `/home/wasdns/p4c/build'
make[2]: Leaving directory `/home/wasdns/p4c/build'
  CXX      setup.lo
  CXX      unified-sources-common_frontend-0.lo
g++: internal compiler error: Killed (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
make[1]: *** [unified-sources-p4c_bm2_ss-0.o] Error 4
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory `/home/wasdns/p4c/build'
make: *** [all] Error 2

Could you give me some advice on it? It seems to be some steps that I used to install p4c are wrong or missed. Thank you!

Best regards,
Chen.

[antoninbas]

You don't have enough memory to compile with -j4, which is why the compiler process is killed. The unified build means that each compilation unit is quite large. Try compiling with -j2. If that fails, try without parallel make.

[chenxiang2019]

@antoninbas

Thank you very much! It works fine with the command make -j2.