[LLVMdev] Build failure with compiler-rt on trunk under linux

[Ben Pope]

I've been building clang on linux for a couple of years now, 
contributing to the testing on Ubuntu, but this one has me stumped:

fatal error: 'asm/socket.h' file not found
#include <asm/socket.h>

[1556/4006] Building CXX object 
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.i386.dir/sanitizer_platform_limits_posix.cc.o
FAILED: /usr/local/bin/clang++-3.6   -DSANITIZER_NEEDS_SEGV=1 
-D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS 
-D__STDC_LIMIT_MACROS -fPIC -fvisibility-inlines-hidden -Wall -W 
-Wno-unused-parameter -Wwrite-strings -Wcast-qual 
-Wmissing-field-initializers -pedantic -Wno-long-long 
-Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 
-fcolor-diagnostics -ffunction-sections -fdata-sections -Wall -std=c++11 
-O3 -DNDEBUG -Iprojects/compiler-rt/lib/sanitizer_common 
-I/home/ben/development/llvm/trunk/llvm/projects/compiler-rt/lib/sanitizer_common 
-Iinclude -I/home/ben/development/llvm/trunk/llvm/include      -fPIC 
-fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter 
-Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic 
-Wno-long-long -Wcovered-switch-default -Wnon-virtual-dtor -std=c++11 
-fcolor-diagnostics -ffunction-sections -fdata-sections -Wall -std=c++11 
-m32 -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer 
-funwind-tables -fno-stack-protector -fvisibility=hidden 
-fno-function-sections -fno-lto -O3 -gline-tables-only -Wno-gnu 
-Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti 
-Wframe-larger-than=512 -Wglobal-constructors -MMD -MT 
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.i386.dir/sanitizer_platform_limits_posix.cc.o 
-MF 
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.i386.dir/sanitizer_platform_limits_posix.cc.o.d 
-o 
projects/compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommon.i386.dir/sanitizer_platform_limits_posix.cc.o 
-c 
/home/ben/development/llvm/trunk/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
In file included from 
/home/ben/development/llvm/trunk/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_posix.cc:31:
In file included from /usr/include/arpa/inet.h:22:
In file included from /usr/include/netinet/in.h:23:
In file included from /usr/include/sys/socket.h:38:
/usr/include/bits/socket.h:345:10: fatal error: 'asm/socket.h' file not 
found
#include <asm/socket.h>

clang++-3.6 -E -x c++ - -v < /dev/null
clang version 3.6.0 (tags/RELEASE_360/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.2
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
 
"/home/ben/opt/chroots/default-ubuntu-14.04/home/development/llvm/3.6.0/final/Phase3/Release/llvmCore-3.6.0-final.install/bin/clang" 
-cc1 -triple x86_64-unknown-linux-gnu -E -disable-free 
-disable-llvm-verifier -main-file-name - -mrelocation-model static 
-mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose 
-mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu 
x86-64 -target-linker-version 2.24 -v -dwarf-column-info -resource-dir 
/home/ben/opt/chroots/default-ubuntu-14.04/home/development/llvm/3.6.0/final/Phase3/Release/llvmCore-3.6.0-final.install/bin/../lib/clang/3.6.0 
-internal-isystem 
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9 
-internal-isystem 
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9 
-internal-isystem 
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9 
-internal-isystem 
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/backward 
-internal-isystem /usr/local/include -internal-isystem 
/home/ben/opt/chroots/default-ubuntu-14.04/home/development/llvm/3.6.0/final/Phase3/Release/llvmCore-3.6.0-final.install/bin/../lib/clang/3.6.0/include 
-internal-externc-isystem /usr/include/x86_64-linux-gnu 
-internal-externc-isystem /include -internal-externc-isystem 
/usr/include -fdeprecated-macro -fdebug-compilation-dir 
/home/ben/development/llvm/trunk/build/release -ferror-limit 19 
-fmessage-length 192 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions 
-fexceptions -fdiagnostics-show-option -o - -x c++ -
clang -cc1 version 3.6.0 based upon LLVM 3.6.0 default target 
x86_64-unknown-linux-gnu
ignoring nonexistent directory "/include"
ignoring duplicate directory 
"/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9"
#include "..." search starts here:
#include <...> search starts here:
  /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9
 
/usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9
  /usr/lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/backward
  /usr/local/include
 
/home/ben/opt/chroots/default-ubuntu-14.04/home/development/llvm/3.6.0/final/Phase3/Release/llvmCore-3.6.0-final.install/bin/../lib/clang/3.6.0/include
  /usr/include/x86_64-linux-gnu
  /usr/include
End of search list.
# 1 "<stdin>"
# 1 "<built-in>" 1
# 1 "<built-in>" 3
# 320 "<built-in>" 3
# 1 "<command line>" 1
# 1 "<built-in>" 2
# 1 "<stdin>" 2


ls -alh /usr/include/x86_64-linux-gnu/asm/socket.h
-rw-r--r-- 1 root root 32 Mar  3 03:16 
/usr/include/x86_64-linux-gnu/asm/socket.h


This is my configure line: cmake -GNinja -DCMAKE_C_COMPILER=clang-3.6 
-DCMAKE_CXX_COMPILER=clang++-3.6 -DCMAKE_BUILD_TYPE=Release 
-DLIBCXX_CXX_ABI=libcxxabi 
-DLIBCXX_LIBCXXABI_INCLUDE_PATHS=../../llvm/projects/libcxxabi/include 
-DLIT_EXECUTABLE=../../llvm/utils/lit/lit.py ../../llvm/



This has only been a problem with trunk since a little after it was 
switched to 3.7.

Thanks in advance for any ideas.

Ben