src/native_client/pnacl/unsupported/llc-builder.sh

   1 #!/bin/bash
   2 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5 set -o nounset
   6 set -o errexit
   7
   8 # Script for building just llc and reducing its memory footprint
   9
  10 readonly CC=gcc
  11 readonly CXX=g++
  12
  13 readonly MAKE_OPTS="-j12 VERBOSE=1"
  14
  15 enable-32bit() {
  16     readonly CFLAGS=-m32
  17     readonly CXXFLAGS=-m32
  18     readonly LDFLAGS=-m32
  19 }
  20
  21 readonly PNACL_ROOT="$(pwd)/pnacl"
  22 readonly TC_BUILD="${PNACL_ROOT}/build"
  23 readonly TC_BUILD_LLVM="${TC_BUILD}/llc"
  24
  25 readonly TC_SRC="${PNACL_ROOT}/src"
  26 readonly TC_SRC_UPSTREAM="${TC_SRC}/upstream"
  27 readonly TC_SRC_LLVM="${TC_SRC_UPSTREAM}/llvm"
  28
  29 readonly LLVM_EXTRA_OPTIONS="--enable-optimized"
  30
  31 readonly CROSS_TARGET_ARM=arm-none-linux-gnueabi
  32
  33
  34 llvm-unlink-clang() {
  35   if [ -d "${TC_SRC_LLVM}" ]; then
  36     rm -f "${TC_SRC_LLVM}"/tools/clang
  37   fi
  38 }
  39
  40
  41 llc-configure() {
  42   local srcdir="${TC_SRC_LLVM}"
  43   local objdir="${TC_BUILD_LLVM}"
  44
  45   rm -rf "${objdir}"
  46   mkdir -p "${objdir}"
  47   pushd "${objdir}"
  48
  49   # Some components like ARMDisassembler may time out when built with -O3.
  50   # If we ever start using MSVC, we may also need to tone down the opt level
  51   # (see the settings in the CMake file for those components).
  52   local llvm_extra_opts=${LLVM_EXTRA_OPTIONS}
  53
  54   llvm-unlink-clang
  55   # The --with-binutils-include is to allow llvm to build the gold plugin
  56   env -i PATH=/usr/bin/:/bin \
  57              MAKE_OPTS=${MAKE_OPTS} \
  58              CC="${CC}" \
  59              CXX="${CXX}" \
  60              CFLAGS="${CFLAGS}" \
  61              CXXFLAGS="${CXXFLAGS}" \
  62              LDFLAGS="${LDFLAGS}" \
  63              ${srcdir}/configure \
  64              --disable-jit \
  65              --enable-static \
  66              --enable-targets=x86,x86_64,arm \
  67              --target=${CROSS_TARGET_ARM} \
  68              ${llvm_extra_opts}
  69   popd
  70 }
  71
  72
  73 llc-make() {
  74   local srcdir="${TC_SRC_LLVM}"
  75   local objdir="${TC_BUILD_LLVM}"
  76
  77   pushd "${objdir}"
  78
  79   llvm-unlink-clang
  80
  81   env -i PATH=/usr/bin/:/bin \
  82            MAKE_OPTS="${MAKE_OPTS}" \
  83            NACL_SANDBOX=0 \
  84            NACL_SB_JIT=0 \
  85            CC="${CC}" \
  86            CXX="${CXX}" \
  87            CFLAGS="${CFLAGS}" \
  88            CXXFLAGS="${CXXFLAGS}" \
  89            LDFLAGS="${LDFLAGS}" \
  90            make ${MAKE_OPTS} tools-only
  91   popd
  92 }
  93
  94
  95 llc-install() {
  96   # This just works on linux and assumes release builds...
  97   # TODO(pnacl-team): Make this path configurable.
  98   cp ${TC_BUILD_LLVM}/Release+Asserts/bin/llc \
  99     toolchain/linux_x86/pnacl_newlib/host_x86_32/bin/llc
 100 }
 101
 102
 103 llc-run-x8632() {
 104   local pexe=$1
 105   ${TC_BUILD_LLVM}/Release+Asserts/bin/llc \
 106       -mcpu=pentium4 \
 107       -mtriple=i686-none-nacl-gnu \
 108       -filetype=obj \
 109       -streaming-bitcode \
 110       -tail-merge-threshold=50 \
 111       ${pexe} \
 112       -o ${pexe}.o \
 113       -metadata-text ${pexe}.meta
 114 }
 115
 116 # to use tc malloc, get it from here and configure it like so:
 117 # https://code.google.com/p/gperftools/
 118 # CXXFLAGS=-m32   LDFLAGS=-m32 CFLAGS=-m32   ./configure
 119 llc-run-x8632-heapprofile() {
 120    export LD_PRELOAD="${TCMALLOC_SO}"
 121    export HEAPPROFILE="$1.heapprofile"
 122    llc-run-x8632 "$@"
 123 }
 124
 125 enable-32bit
 126
 127 "$@"