1 # AC_PROG_NASM 2 # -------------------------- 3 # Check that NASM exists and determine flags 4 AC_DEFUN([AC_PROG_NASM],[ 5 6 AC_CHECK_PROGS(NASM, [nasm nasmw yasm]) 7 test -z "$NASM" && AC_MSG_ERROR([no nasm (Netwide Assembler) found]) 8 9 AC_MSG_CHECKING([for object file format of host system]) 10 case "$host_os" in 11 cygwin* | mingw* | pw32* | interix*) 12 case "$host_cpu" in 13 x86_64) 14 objfmt='Win64-COFF' 15 ;; 16 *) 17 objfmt='Win32-COFF' 18 ;; 19 esac 20 ;; 21 msdosdjgpp* | go32*) 22 objfmt='COFF' 23 ;; 24 os2-emx*) # not tested 25 objfmt='MSOMF' # obj 26 ;; 27 linux*coff* | linux*oldld*) 28 objfmt='COFF' # ??? 29 ;; 30 linux*aout*) 31 objfmt='a.out' 32 ;; 33 linux*) 34 case "$host_cpu" in 35 x86_64) 36 objfmt='ELF64' 37 ;; 38 *) 39 objfmt='ELF' 40 ;; 41 esac 42 ;; 43 kfreebsd* | freebsd* | netbsd* | openbsd*) 44 if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then 45 objfmt='BSD-a.out' 46 else 47 case "$host_cpu" in 48 x86_64 | amd64) 49 objfmt='ELF64' 50 ;; 51 *) 52 objfmt='ELF' 53 ;; 54 esac 55 fi 56 ;; 57 solaris* | sunos* | sysv* | sco*) 58 case "$host_cpu" in 59 x86_64) 60 objfmt='ELF64' 61 ;; 62 *) 63 objfmt='ELF' 64 ;; 65 esac 66 ;; 67 darwin* | rhapsody* | nextstep* | openstep* | macos*) 68 case "$host_cpu" in 69 x86_64) 70 objfmt='Mach-O64' 71 ;; 72 *) 73 objfmt='Mach-O' 74 ;; 75 esac 76 ;; 77 *) 78 objfmt='ELF ?' 79 ;; 80 esac 81 82 AC_MSG_RESULT([$objfmt]) 83 if test "$objfmt" = 'ELF ?'; then 84 objfmt='ELF' 85 AC_MSG_WARN([unexpected host system. assumed that the format is $objfmt.]) 86 fi 87 88 AC_MSG_CHECKING([for object file format specifier (NAFLAGS) ]) 89 case "$objfmt" in 90 MSOMF) NAFLAGS='-fobj -DOBJ32';; 91 Win32-COFF) NAFLAGS='-fwin32 -DWIN32';; 92 Win64-COFF) NAFLAGS='-fwin64 -DWIN64 -D__x86_64__';; 93 COFF) NAFLAGS='-fcoff -DCOFF';; 94 a.out) NAFLAGS='-faout -DAOUT';; 95 BSD-a.out) NAFLAGS='-faoutb -DAOUT';; 96 ELF) NAFLAGS='-felf -DELF';; 97 ELF64) NAFLAGS='-felf64 -DELF -D__x86_64__';; 98 RDF) NAFLAGS='-frdf -DRDF';; 99 Mach-O) NAFLAGS='-fmacho -DMACHO';; 100 Mach-O64) NAFLAGS='-fmacho64 -DMACHO -D__x86_64__';; 101 esac 102 AC_MSG_RESULT([$NAFLAGS]) 103 AC_SUBST([NAFLAGS]) 104 105 AC_MSG_CHECKING([whether the assembler ($NASM $NAFLAGS) works]) 106 cat > conftest.asm <<EOF 107 [%line __oline__ "configure" 108 section .text 109 global _main,main 110 _main: 111 main: xor eax,eax 112 ret 113 ]EOF 114 try_nasm='$NASM $NAFLAGS -o conftest.o conftest.asm' 115 if AC_TRY_EVAL(try_nasm) && test -s conftest.o; then 116 AC_MSG_RESULT(yes) 117 else 118 echo "configure: failed program was:" >&AC_FD_CC 119 cat conftest.asm >&AC_FD_CC 120 rm -rf conftest* 121 AC_MSG_RESULT(no) 122 AC_MSG_ERROR([installation or configuration problem: assembler cannot create object files.]) 123 fi 124 125 AC_MSG_CHECKING([whether the linker accepts assembler output]) 126 try_nasm='${CC-cc} -o conftest${ac_exeext} $LDFLAGS conftest.o $LIBS 1>&AC_FD_CC' 127 if AC_TRY_EVAL(try_nasm) && test -s conftest${ac_exeext}; then 128 rm -rf conftest* 129 AC_MSG_RESULT(yes) 130 else 131 rm -rf conftest* 132 AC_MSG_RESULT(no) 133 AC_MSG_ERROR([configuration problem: maybe object file format mismatch.]) 134 fi 135 136 ]) 137 138 # AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE 139 # -------------------------- 140 # Test whether the assembler is suitable and supports NEON instructions 141 AC_DEFUN([AC_CHECK_COMPATIBLE_ARM_ASSEMBLER_IFELSE],[ 142 ac_good_gnu_arm_assembler=no 143 ac_save_CC="$CC" 144 ac_save_CFLAGS="$CFLAGS" 145 CFLAGS="$CCASFLAGS -x assembler-with-cpp" 146 CC="$CCAS" 147 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 148 .text 149 .fpu neon 150 .arch armv7a 151 .object_arch armv4 152 .arm 153 pld [r0] 154 vmovn.u16 d0, q0]])], ac_good_gnu_arm_assembler=yes) 155 156 ac_use_gas_preprocessor=no 157 if test "x$ac_good_gnu_arm_assembler" = "xno" ; then 158 CC="gas-preprocessor.pl $CCAS" 159 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 160 .text 161 .fpu neon 162 .arch armv7a 163 .object_arch armv4 164 .arm 165 pld [r0] 166 vmovn.u16 d0, q0]])], ac_use_gas_preprocessor=yes) 167 fi 168 CFLAGS="$ac_save_CFLAGS" 169 CC="$ac_save_CC" 170 171 if test "x$ac_use_gas_preprocessor" = "xyes" ; then 172 CCAS="gas-preprocessor.pl $CCAS" 173 AC_SUBST([CCAS]) 174 ac_good_gnu_arm_assembler=yes 175 fi 176 177 if test "x$ac_good_gnu_arm_assembler" = "xyes" ; then 178 $1 179 else 180 $2 181 fi 182 ]) 183 184 # AC_CHECK_COMPATIBLE_MIPSEL_ASSEMBLER_IFELSE 185 # -------------------------- 186 # Test whether the assembler is suitable and supports MIPS instructions 187 AC_DEFUN([AC_CHECK_COMPATIBLE_MIPS_ASSEMBLER_IFELSE],[ 188 have_mips_dspr2=no 189 ac_save_CFLAGS="$CFLAGS" 190 CFLAGS="$CCASFLAGS -mdspr2" 191 192 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 193 194 int main () 195 { 196 int c = 0, a = 0, b = 0; 197 __asm__ __volatile__ ( 198 "precr.qb.ph %[c], %[a], %[b] \n\t" 199 : [c] "=r" (c) 200 : [a] "r" (a), [b] "r" (b) 201 ); 202 return c; 203 } 204 ]])], have_mips_dspr2=yes) 205 CFLAGS=$ac_save_CFLAGS 206 207 if test "x$have_mips_dspr2" = "xyes" ; then 208 $1 209 else 210 $2 211 fi 212 ]) 213 214 AC_DEFUN([AC_CHECK_COMPATIBLE_ARM64_ASSEMBLER_IFELSE],[ 215 ac_good_gnu_arm_assembler=no 216 ac_save_CC="$CC" 217 ac_save_CFLAGS="$CFLAGS" 218 CFLAGS="$CCASFLAGS -x assembler-with-cpp" 219 CC="$CCAS" 220 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 221 .text 222 movi v0.16b, #100]])], ac_good_gnu_arm_assembler=yes) 223 224 ac_use_gas_preprocessor=no 225 if test "x$ac_good_gnu_arm_assembler" = "xno" ; then 226 CC="gas-preprocessor.pl $CCAS" 227 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 228 .text 229 movi v0.16b, #100]])], ac_use_gas_preprocessor=yes) 230 fi 231 CFLAGS="$ac_save_CFLAGS" 232 CC="$ac_save_CC" 233 234 if test "x$ac_use_gas_preprocessor" = "xyes" ; then 235 CCAS="gas-preprocessor.pl $CCAS" 236 AC_SUBST([CCAS]) 237 ac_good_gnu_arm_assembler=yes 238 fi 239 240 if test "x$ac_good_gnu_arm_assembler" = "xyes" ; then 241 $1 242 else 243 $2 244 fi 245 ]) 246
