The Tor Browser / file comparison
comparison: build/autoconf/arch.m4
build/autoconf/arch.m4
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f99ec4fd777d |
|---|---|
| 1 dnl This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 dnl License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 dnl file, You can obtain one at http://mozilla.org/MPL/2.0/. | |
| 4 | |
| 5 AC_DEFUN([MOZ_ARCH_OPTS], | |
| 6 [ | |
| 7 | |
| 8 dnl ======================================================== | |
| 9 dnl = ARM toolchain tweaks | |
| 10 dnl ======================================================== | |
| 11 | |
| 12 MOZ_THUMB=toolchain-default | |
| 13 MOZ_THUMB_INTERWORK=toolchain-default | |
| 14 MOZ_FPU=toolchain-default | |
| 15 MOZ_FLOAT_ABI=toolchain-default | |
| 16 MOZ_SOFT_FLOAT=toolchain-default | |
| 17 MOZ_ALIGN=toolchain-default | |
| 18 | |
| 19 MOZ_ARG_WITH_STRING(arch, | |
| 20 [ --with-arch=[[type|toolchain-default]] | |
| 21 Use specific CPU features (-march=type). Resets | |
| 22 thumb, fpu, float-abi, etc. defaults when set], | |
| 23 if test -z "$GNU_CC"; then | |
| 24 AC_MSG_ERROR([--with-arch is not supported on non-GNU toolchains]) | |
| 25 fi | |
| 26 MOZ_ARCH=$withval) | |
| 27 | |
| 28 if test -z "$MOZ_ARCH"; then | |
| 29 dnl Defaults | |
| 30 case "${CPU_ARCH}-${OS_TARGET}" in | |
| 31 arm-Android) | |
| 32 MOZ_THUMB=yes | |
| 33 MOZ_ARCH=armv7-a | |
| 34 MOZ_FPU=vfp | |
| 35 MOZ_FLOAT_ABI=softfp | |
| 36 MOZ_ALIGN=no | |
| 37 ;; | |
| 38 arm-Darwin) | |
| 39 MOZ_ARCH=toolchain-default | |
| 40 MOZ_THUMB=yes | |
| 41 ;; | |
| 42 esac | |
| 43 fi | |
| 44 | |
| 45 if test "$MOZ_ARCH" = "armv6" -a "$OS_TARGET" = "Android"; then | |
| 46 MOZ_FPU=vfp | |
| 47 fi | |
| 48 | |
| 49 MOZ_ARG_WITH_STRING(thumb, | |
| 50 [ --with-thumb[[=yes|no|toolchain-default]]] | |
| 51 [ Use Thumb instruction set (-mthumb)], | |
| 52 if test -z "$GNU_CC"; then | |
| 53 AC_MSG_ERROR([--with-thumb is not supported on non-GNU toolchains]) | |
| 54 fi | |
| 55 MOZ_THUMB=$withval) | |
| 56 | |
| 57 MOZ_ARG_WITH_STRING(thumb-interwork, | |
| 58 [ --with-thumb-interwork[[=yes|no|toolchain-default]] | |
| 59 Use Thumb/ARM instuctions interwork (-mthumb-interwork)], | |
| 60 if test -z "$GNU_CC"; then | |
| 61 AC_MSG_ERROR([--with-thumb-interwork is not supported on non-GNU toolchains]) | |
| 62 fi | |
| 63 MOZ_THUMB_INTERWORK=$withval) | |
| 64 | |
| 65 MOZ_ARG_WITH_STRING(fpu, | |
| 66 [ --with-fpu=[[type|toolchain-default]] | |
| 67 Use specific FPU type (-mfpu=type)], | |
| 68 if test -z "$GNU_CC"; then | |
| 69 AC_MSG_ERROR([--with-fpu is not supported on non-GNU toolchains]) | |
| 70 fi | |
| 71 MOZ_FPU=$withval) | |
| 72 | |
| 73 MOZ_ARG_WITH_STRING(float-abi, | |
| 74 [ --with-float-abi=[[type|toolchain-default]] | |
| 75 Use specific arm float ABI (-mfloat-abi=type)], | |
| 76 if test -z "$GNU_CC"; then | |
| 77 AC_MSG_ERROR([--with-float-abi is not supported on non-GNU toolchains]) | |
| 78 fi | |
| 79 MOZ_FLOAT_ABI=$withval) | |
| 80 | |
| 81 MOZ_ARG_WITH_STRING(soft-float, | |
| 82 [ --with-soft-float[[=yes|no|toolchain-default]] | |
| 83 Use soft float library (-msoft-float)], | |
| 84 if test -z "$GNU_CC"; then | |
| 85 AC_MSG_ERROR([--with-soft-float is not supported on non-GNU toolchains]) | |
| 86 fi | |
| 87 MOZ_SOFT_FLOAT=$withval) | |
| 88 | |
| 89 case "$MOZ_ARCH" in | |
| 90 toolchain-default|"") | |
| 91 arch_flag="" | |
| 92 ;; | |
| 93 *) | |
| 94 arch_flag="-march=$MOZ_ARCH" | |
| 95 ;; | |
| 96 esac | |
| 97 | |
| 98 case "$MOZ_THUMB" in | |
| 99 yes) | |
| 100 MOZ_THUMB2=1 | |
| 101 thumb_flag="-mthumb" | |
| 102 ;; | |
| 103 no) | |
| 104 MOZ_THUMB2= | |
| 105 thumb_flag="-marm" | |
| 106 ;; | |
| 107 *) | |
| 108 _SAVE_CFLAGS="$CFLAGS" | |
| 109 CFLAGS="$arch_flag" | |
| 110 AC_TRY_COMPILE([],[return sizeof(__thumb2__);], | |
| 111 MOZ_THUMB2=1, | |
| 112 MOZ_THUMB2=) | |
| 113 CFLAGS="$_SAVE_CFLAGS" | |
| 114 thumb_flag="" | |
| 115 ;; | |
| 116 esac | |
| 117 | |
| 118 if test "$MOZ_THUMB2" = 1; then | |
| 119 AC_DEFINE(MOZ_THUMB2) | |
| 120 fi | |
| 121 | |
| 122 case "$MOZ_THUMB_INTERWORK" in | |
| 123 yes) | |
| 124 thumb_interwork_flag="-mthumb-interwork" | |
| 125 ;; | |
| 126 no) | |
| 127 thumb_interwork_flag="-mno-thumb-interwork" | |
| 128 ;; | |
| 129 *) # toolchain-default | |
| 130 thumb_interwork_flag="" | |
| 131 ;; | |
| 132 esac | |
| 133 | |
| 134 case "$MOZ_FPU" in | |
| 135 toolchain-default|"") | |
| 136 fpu_flag="" | |
| 137 ;; | |
| 138 *) | |
| 139 fpu_flag="-mfpu=$MOZ_FPU" | |
| 140 ;; | |
| 141 esac | |
| 142 | |
| 143 case "$MOZ_FLOAT_ABI" in | |
| 144 toolchain-default|"") | |
| 145 float_abi_flag="" | |
| 146 ;; | |
| 147 *) | |
| 148 float_abi_flag="-mfloat-abi=$MOZ_FLOAT_ABI" | |
| 149 ;; | |
| 150 esac | |
| 151 | |
| 152 case "$MOZ_SOFT_FLOAT" in | |
| 153 yes) | |
| 154 soft_float_flag="-msoft-float" | |
| 155 ;; | |
| 156 no) | |
| 157 soft_float_flag="-mno-soft-float" | |
| 158 ;; | |
| 159 *) # toolchain-default | |
| 160 soft_float_flag="" | |
| 161 ;; | |
| 162 esac | |
| 163 | |
| 164 case "$MOZ_ALIGN" in | |
| 165 no) | |
| 166 align_flag="-mno-unaligned-access" | |
| 167 ;; | |
| 168 yes) | |
| 169 align_flag="-munaligned-access" | |
| 170 ;; | |
| 171 *) | |
| 172 align_flag="" | |
| 173 ;; | |
| 174 esac | |
| 175 | |
| 176 if test -n "$align_flag"; then | |
| 177 _SAVE_CFLAGS="$CFLAGS" | |
| 178 CFLAGS="$CFLAGS $align_flag" | |
| 179 AC_MSG_CHECKING(whether alignment flag ($align_flag) is supported) | |
| 180 AC_TRY_COMPILE([],[],,align_flag="") | |
| 181 CFLAGS="$_SAVE_CFLAGS" | |
| 182 fi | |
| 183 | |
| 184 dnl Use echo to avoid accumulating space characters | |
| 185 all_flags=`echo $arch_flag $thumb_flag $thumb_interwork_flag $fpu_flag $float_abi_flag $soft_float_flag $align_flag` | |
| 186 if test -n "$all_flags"; then | |
| 187 _SAVE_CFLAGS="$CFLAGS" | |
| 188 CFLAGS="$all_flags" | |
| 189 AC_MSG_CHECKING(whether the chosen combination of compiler flags ($all_flags) works) | |
| 190 AC_TRY_COMPILE([],[return 0;], | |
| 191 AC_MSG_RESULT([yes]), | |
| 192 AC_MSG_ERROR([no])) | |
| 193 | |
| 194 CFLAGS="$_SAVE_CFLAGS $all_flags" | |
| 195 CXXFLAGS="$CXXFLAGS $all_flags" | |
| 196 ASFLAGS="$ASFLAGS $all_flags" | |
| 197 if test -n "$thumb_flag"; then | |
| 198 LDFLAGS="$LDFLAGS $thumb_flag" | |
| 199 fi | |
| 200 fi | |
| 201 | |
| 202 AC_SUBST(MOZ_THUMB2) | |
| 203 | |
| 204 if test "$CPU_ARCH" = "arm"; then | |
| 205 AC_MSG_CHECKING(for ARM SIMD support in compiler) | |
| 206 # We try to link so that this also fails when | |
| 207 # building with LTO. | |
| 208 AC_TRY_LINK([], | |
| 209 [asm("uqadd8 r1, r1, r2");], | |
| 210 result="yes", result="no") | |
| 211 AC_MSG_RESULT("$result") | |
| 212 if test "$result" = "yes"; then | |
| 213 AC_DEFINE(HAVE_ARM_SIMD) | |
| 214 HAVE_ARM_SIMD=1 | |
| 215 fi | |
| 216 | |
| 217 AC_MSG_CHECKING(ARM version support in compiler) | |
| 218 dnl Determine the target ARM architecture (5 for ARMv5, v5T, v5E, etc.; 6 for ARMv6, v6K, etc.) | |
| 219 ARM_ARCH=`${CC-cc} ${CFLAGS} -dM -E - < /dev/null | sed -n 's/.*__ARM_ARCH_\([[0-9]][[0-9]]*\).*/\1/p'` | |
| 220 AC_MSG_RESULT("$ARM_ARCH") | |
| 221 | |
| 222 AC_MSG_CHECKING(for ARM NEON support in compiler) | |
| 223 # We try to link so that this also fails when | |
| 224 # building with LTO. | |
| 225 AC_TRY_LINK([], | |
| 226 [asm(".fpu neon\n vadd.i8 d0, d0, d0");], | |
| 227 result="yes", result="no") | |
| 228 AC_MSG_RESULT("$result") | |
| 229 if test "$result" = "yes"; then | |
| 230 AC_DEFINE(HAVE_ARM_NEON) | |
| 231 HAVE_ARM_NEON=1 | |
| 232 | |
| 233 dnl We don't need to build NEON support if we're targetting a non-NEON device. | |
| 234 dnl This matches media/webrtc/trunk/webrtc/build/common.gypi. | |
| 235 if test -n "$ARM_ARCH"; then | |
| 236 if test "$ARM_ARCH" -lt 7; then | |
| 237 BUILD_ARM_NEON= | |
| 238 else | |
| 239 AC_DEFINE(BUILD_ARM_NEON) | |
| 240 BUILD_ARM_NEON=1 | |
| 241 fi | |
| 242 fi | |
| 243 fi | |
| 244 | |
| 245 fi # CPU_ARCH = arm | |
| 246 | |
| 247 AC_SUBST(HAVE_ARM_SIMD) | |
| 248 AC_SUBST(HAVE_ARM_NEON) | |
| 249 AC_SUBST(BUILD_ARM_NEON) | |
| 250 AC_SUBST(ARM_ARCH) | |
| 251 | |
| 252 if test -n "$MOZ_ARCH"; then | |
| 253 NSPR_CONFIGURE_ARGS="$NSPR_CONFIGURE_ARGS --with-arch=$MOZ_ARCH" | |
| 254 NSPR_CONFIGURE_ARGS="$NSPR_CONFIGURE_ARGS --with-thumb=$MOZ_THUMB" | |
| 255 NSPR_CONFIGURE_ARGS="$NSPR_CONFIGURE_ARGS --with-thumb-interwork=$MOZ_THUMB_INTERWORK" | |
| 256 NSPR_CONFIGURE_ARGS="$NSPR_CONFIGURE_ARGS --with-fpu=$MOZ_FPU" | |
| 257 NSPR_CONFIGURE_ARGS="$NSPR_CONFIGURE_ARGS --with-float-abi=$MOZ_FLOAT_ABI" | |
| 258 NSPR_CONFIGURE_ARGS="$NSPR_CONFIGURE_ARGS --with-soft-float=$MOZ_SOFT_FLOAT" | |
| 259 fi | |
| 260 | |
| 261 ]) |
