mkmf.sh

   1 # Copyright © 2010, 2012, 2013
   2 #       Thorsten Glaser <tg@mirbsd.org>
   3 # This file is provided under the same terms as mksh.
   4 #-
   5 # Helper script to let src/Build.sh generate Makefrag.inc
   6 # which we in turn use in the manual creation of Android.mk
   7 #
   8 # This script is supposed to be run from/inside AOSP by the
   9 # porter of mksh to Android (and only manually).
  10
  11 if test x"$1" = x"-t"; then
  12         # test compilation
  13         args=-r
  14         mkmfmode=1
  15 else
  16         # prepare for AOSP
  17         args=-M
  18         mkmfmode=0
  19 fi
  20
  21 cd "$(dirname "$0")"
  22 srcdir=$(pwd)
  23 rm -rf tmp
  24 mkdir tmp
  25 cd ../..
  26 aospdir=$(pwd)
  27 cd $srcdir/tmp
  28
  29 addvar() {
  30         _vn=$1; shift
  31
  32         eval $_vn=\"\$$_vn '$*"'
  33 }
  34
  35 CFLAGS=
  36 CPPFLAGS=
  37 LDFLAGS=
  38 LIBS=
  39
  40 # The definitions below were generated by examining the
  41 # output of the following command:
  42 # make showcommands out/target/product/generic/system/bin/mksh 2>&1 | tee log
  43 #
  44 # They are only used to let Build.sh find the compiler, header
  45 # files, linker and libraries to generate Makefrag.inc (similar
  46 # to what GNU autotools’ configure scripts do), and never used
  47 # during the real build process. We need this to port mksh to
  48 # the Android platform and it is crucial these are as close as
  49 # possible to the values used later. (You also must example the
  50 # results gathered from Makefrag.inc to see they are the same
  51 # across all Android platforms, or add appropriate ifdefs.)
  52 # Since we no longer use the NDK, the AOSP has to have been
  53 # built before using this script (targetting generic/emulator).
  54
  55 CC=$aospdir/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.7/bin/arm-linux-androideabi-gcc
  56 addvar CPPFLAGS \
  57     -I$aospdir/libnativehelper/include/nativehelper \
  58     -isystem $aospdir/system/core/include \
  59     -isystem $aospdir/hardware/libhardware/include \
  60     -isystem $aospdir/hardware/libhardware_legacy/include \
  61     -isystem $aospdir/hardware/ril/include \
  62     -isystem $aospdir/libnativehelper/include \
  63     -isystem $aospdir/frameworks/native/include \
  64     -isystem $aospdir/frameworks/native/opengl/include \
  65     -isystem $aospdir/frameworks/av/include \
  66     -isystem $aospdir/frameworks/base/include \
  67     -isystem $aospdir/frameworks/base/opengl/include \
  68     -isystem $aospdir/external/skia/include \
  69     -isystem $aospdir/out/target/product/generic/obj/include \
  70     -isystem $aospdir/bionic/libc/arch-arm/include \
  71     -isystem $aospdir/bionic/libc/include \
  72     -isystem $aospdir/bionic/libstdc++/include \
  73     -isystem $aospdir/bionic/libc/kernel/common \
  74     -isystem $aospdir/bionic/libc/kernel/arch-arm \
  75     -isystem $aospdir/bionic/libm/include \
  76     -isystem $aospdir/bionic/libm/include/arm \
  77     -isystem $aospdir/bionic/libthread_db/include \
  78     -D_FORTIFY_SOURCE=1 \
  79     -include $aospdir/build/core/combo/include/arch/linux-arm/AndroidConfig.h \
  80     -I$aospdir/build/core/combo/include/arch/linux-arm/ \
  81     -DANDROID -DNDEBUG -UDEBUG
  82 # who would have thought the AOSP devs are funny? -fno-builtin-sin
  83 addvar CFLAGS \
  84     -fno-exceptions \
  85     -Wno-multichar \
  86     -msoft-float \
  87     -fpic \
  88     -fPIE \
  89     -ffunction-sections \
  90     -fdata-sections \
  91     -funwind-tables \
  92     -fstack-protector \
  93     -Wa,--noexecstack \
  94     -Werror=format-security \
  95     -fno-short-enums \
  96     -march=armv7-a \
  97     -mfloat-abi=softfp \
  98     -mfpu=vfpv3-d16 \
  99     -Wno-unused-but-set-variable \
 100     -fno-builtin-sin \
 101     -fno-strict-volatile-bitfields \
 102     -Wno-psabi \
 103     -mthumb-interwork \
 104     -fmessage-length=0 \
 105     -W \
 106     -Wall \
 107     -Wno-unused \
 108     -Winit-self \
 109     -Wpointer-arith \
 110     -Werror=return-type \
 111     -Werror=non-virtual-dtor \
 112     -Werror=address \
 113     -Werror=sequence-point \
 114     -g \
 115     -Wstrict-aliasing=2 \
 116     -fgcse-after-reload \
 117     -frerun-cse-after-loop \
 118     -frename-registers \
 119     -mthumb \
 120     -Os \
 121     -fomit-frame-pointer \
 122     -fno-strict-aliasing
 123 addvar LDFLAGS \
 124     -nostdlib \
 125     -Bdynamic \
 126     -pie \
 127     -Wl,-dynamic-linker,/system/bin/linker \
 128     -Wl,--gc-sections \
 129     -Wl,-z,nocopyreloc \
 130     -Wl,-z,noexecstack \
 131     -Wl,-z,relro \
 132     -Wl,-z,now \
 133     -Wl,--warn-shared-textrel \
 134     -Wl,--icf=safe \
 135     -Wl,--fix-cortex-a8 \
 136     -Wl,--no-undefined \
 137     $aospdir/out/target/product/generic/obj/lib/crtbegin_dynamic.o
 138 addvar LIBS \
 139     -L$aospdir/out/target/product/generic/obj/lib \
 140     -Wl,-rpath-link=$aospdir/out/target/product/generic/obj/lib \
 141     -lc \
 142     -Wl,--no-whole-archive \
 143     $aospdir/out/target/product/generic/obj/STATIC_LIBRARIES/libcompiler-rt-extras_intermediates/libcompiler-rt-extras.a \
 144     $aospdir/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.7/bin/../lib/gcc/arm-linux-androideabi/4.7/armv7-a/libgcc.a \
 145     $aospdir/out/target/product/generic/obj/lib/crtend_android.o
 146
 147
 148 ### Flags used by test builds
 149 if test $mkmfmode = 1; then
 150         addvar CPPFLAGS '-DMKSHRC_PATH=\"/system/etc/mkshrc\"'
 151         addvar CPPFLAGS '-DMKSH_DEFAULT_EXECSHELL=\"/system/bin/sh\"'
 152         addvar CPPFLAGS '-DMKSH_DEFAULT_TMPDIR=\"/data/local\"'
 153 fi
 154
 155 ### Override flags
 156 # Let the shell free all memory upon exiting
 157 addvar CPPFLAGS -DDEBUG_LEAKS
 158 # UTF-8 works nowadays
 159 addvar CPPFLAGS -DMKSH_ASSUME_UTF8
 160 # Reduce filedescriptor usage
 161 addvar CPPFLAGS -DMKSH_CONSERVATIVE_FDS
 162 # Leave out RCS ID strings from the binary
 163 addvar CPPFLAGS -DMKSH_DONT_EMIT_IDSTRING
 164 # No getpwnam() calls (affects "cd ~username/" only)
 165 addvar CPPFLAGS -DMKSH_NOPWNAM
 166 # Leave out the ulimit builtin
 167 #addvar CPPFLAGS -DMKSH_NO_LIMITS
 168 # Compile an extra small mksh (optional)
 169 #addvar CPPFLAGS -DMKSH_SMALL
 170
 171 # Set target platform
 172 TARGET_OS=Android
 173
 174 # Android-x86 does not have helper functions for ProPolice SSP
 175 # and AOSP adds the flags by itself (same for warning flags)
 176 HAVE_CAN_FNOSTRICTALIASING=0
 177 HAVE_CAN_FSTACKPROTECTORALL=0
 178 HAVE_CAN_WALL=0
 179 export HAVE_CAN_FNOSTRICTALIASING HAVE_CAN_FSTACKPROTECTORALL HAVE_CAN_WALL
 180
 181 # even the idea of persistent history on a phone is funny
 182 HAVE_PERSISTENT_HISTORY=0; export HAVE_PERSISTENT_HISTORY
 183
 184 # this is a run-time check and dependent on the target CPU
 185 # architecture (at _least_!) and cannot be auto-detected,
 186 # so always include the safety check even if unnecessary
 187 HAVE_SILENT_IDIVWRAPV=0; export HAVE_SILENT_IDIVWRAPV
 188
 189 # ... and run it!
 190 export CC CPPFLAGS CFLAGS LDFLAGS LIBS TARGET_OS
 191 sh ../src/Build.sh $args
 192 rv=$?
 193 test x"$args" = x"-r" && exit $rv
 194 test x0 = x"$rv" && mv -f Makefrag.inc ../
 195 cd ..
 196 rm -rf tmp
 197 exit $rv