1 define(pkg_major, 1) 2 define(pkg_minor, 1) 3 define(pkg_extra, ) 4 define(pkg_maintainer, libunwind-devel (a] nongnu.org) 5 define(mkvers, $1.$2$3) 6 dnl Process this file with autoconf to produce a configure script. 7 AC_INIT([libunwind],[mkvers(pkg_major, pkg_minor, pkg_extra)],[pkg_maintainer]) 8 AC_CONFIG_SRCDIR(src/mi/backtrace.c) 9 AC_CONFIG_AUX_DIR(config) 10 AC_CANONICAL_TARGET 11 AM_INIT_AUTOMAKE([1.6 subdir-objects]) 12 AM_MAINTAINER_MODE 13 AC_CONFIG_HEADERS([include/config.h]) 14 15 dnl Checks for programs. 16 AC_PROG_CC 17 AC_PROG_CXX 18 AC_PROG_INSTALL 19 AC_PROG_MAKE_SET 20 LT_INIT 21 AM_PROG_AS 22 AM_PROG_CC_C_O 23 24 dnl Checks for libraries. 25 AC_CHECK_LIB(uca, __uc_get_grs) 26 OLD_LIBS=${LIBS} 27 AC_SEARCH_LIBS(dlopen, dl) 28 LIBS=${OLD_LIBS} 29 case "$ac_cv_search_dlopen" in 30 -l*) DLLIB=$ac_cv_search_dlopen;; 31 *) DLLIB="";; 32 esac 33 34 CHECK_ATOMIC_OPS 35 36 # ANDROID support update. 37 CHECK_ANDROID 38 # End of ANDROID update. 39 40 dnl Checks for header files. 41 AC_HEADER_STDC 42 AC_CHECK_HEADERS(asm/ptrace_offsets.h endian.h sys/endian.h execinfo.h \ 43 ia64intrin.h sys/uc_access.h unistd.h signal.h sys/types.h \ 44 sys/procfs.h sys/ptrace.h byteswap.h elf.h sys/elf.h link.h sys/link.h) 45 46 dnl Checks for typedefs, structures, and compiler characteristics. 47 AC_C_CONST 48 AC_C_INLINE 49 AC_TYPE_SIZE_T 50 AC_CHECK_SIZEOF(off_t) 51 52 CPPFLAGS="${CPPFLAGS} -D_GNU_SOURCE" 53 54 AC_CHECK_MEMBERS([struct dl_phdr_info.dlpi_subs],,,[#include <link.h>]) 55 AC_CHECK_TYPES([struct elf_prstatus, struct prstatus], [], [], 56 [$ac_includes_default 57 #if HAVE_SYS_PROCFS_H 58 # include <sys/procfs.h> 59 #endif 60 ]) 61 62 AC_CHECK_DECLS([PTRACE_POKEUSER, PTRACE_POKEDATA, 63 PTRACE_TRACEME, PTRACE_CONT, PTRACE_SINGLESTEP, 64 PTRACE_SYSCALL, PT_IO, PT_GETREGS, 65 PT_GETFPREGS, PT_CONTINUE, PT_TRACE_ME, 66 PT_STEP, PT_SYSCALL], [], [], 67 [$ac_includes_default 68 #if HAVE_SYS_TYPES_H 69 #include <sys/types.h> 70 #endif 71 #include <sys/ptrace.h> 72 ]) 73 74 dnl Checks for library functions. 75 AC_CHECK_FUNCS(dl_iterate_phdr dl_phdr_removals_counter dlmodinfo getunwind \ 76 ttrace mincore) 77 78 AC_MSG_CHECKING([if building with AltiVec]) 79 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 80 #ifndef __ALTIVEC__ 81 # error choke 82 #endif 83 ]])], [use_altivec=yes],[use_altivec=no]) 84 AM_CONDITIONAL(USE_ALTIVEC, [test x$use_altivec = xyes]) 85 AC_MSG_RESULT([$use_altivec]) 86 87 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ 88 #ifndef __powerpc64__ 89 # error choke 90 #endif 91 ]])], [ppc_bits=64], [ppc_bits=32]) 92 93 AC_DEFUN([SET_ARCH],[ 94 AS_CASE([$1], 95 [arm*],[$2=arm], 96 [i?86],[$2=x86], 97 [hppa*],[$2=hppa], 98 [mips*],[$2=mips], 99 [powerpc*],[$2=ppc$ppc_bits], 100 [sh*],[$2=sh], 101 [amd64],[$2=x86_64], 102 [$2=$1]) 103 ]) dnl SET_ARCH 104 105 SET_ARCH([$build_cpu],[build_arch]) 106 SET_ARCH([$host_cpu],[host_arch]) 107 SET_ARCH([$target_cpu],[target_arch]) 108 109 AC_ARG_ENABLE(coredump, 110 AS_HELP_STRING([--enable-coredump],[building libunwind-coredump library]),, 111 [AS_CASE([$host_arch], [aarch64*|arm*|mips*|sh*|x86*], [enable_coredump=yes], [enable_coredump=no])] 112 ) 113 114 AC_MSG_CHECKING([if we should build libunwind-coredump]) 115 AC_MSG_RESULT([$enable_coredump]) 116 117 AC_ARG_ENABLE(ptrace, 118 AS_HELP_STRING([--enable-ptrace],[building libunwind-ptrace library]),, 119 [AC_CHECK_HEADER([sys/ptrace.h], [enable_ptrace=yes], [enable_ptrace=no])] 120 ) 121 122 AC_MSG_CHECKING([if we should build libunwind-ptrace]) 123 AC_MSG_RESULT([$enable_ptrace]) 124 125 AC_ARG_ENABLE(setjmp, 126 AS_HELP_STRING([--enable-setjmp],[building libunwind-setjmp library]),, 127 [AS_IF([test x$target_arch == x$host_arch], [enable_setjmp=yes], [enable_setjmp=no])] 128 ) 129 130 AC_MSG_CHECKING([if we should build libunwind-setjmp]) 131 AC_MSG_RESULT([$enable_setjmp]) 132 133 AC_MSG_CHECKING([for build architecture]) 134 AC_MSG_RESULT([$build_arch]) 135 AC_MSG_CHECKING([for host architecture]) 136 AC_MSG_RESULT([$host_arch]) 137 AC_MSG_CHECKING([for target architecture]) 138 AC_MSG_RESULT([$target_arch]) 139 AC_MSG_CHECKING([for target operating system]) 140 AC_MSG_RESULT([$target_os]) 141 142 AM_CONDITIONAL(BUILD_COREDUMP, test x$enable_coredump = xyes) 143 AM_CONDITIONAL(BUILD_PTRACE, test x$enable_ptrace = xyes) 144 AM_CONDITIONAL(BUILD_SETJMP, test x$enable_setjmp = xyes) 145 AM_CONDITIONAL(REMOTE_ONLY, test x$target_arch != x$host_arch) 146 AM_CONDITIONAL(ARCH_AARCH64, test x$target_arch = xaarch64) 147 AM_CONDITIONAL(ARCH_ARM, test x$target_arch = xarm) 148 AM_CONDITIONAL(ARCH_IA64, test x$target_arch = xia64) 149 AM_CONDITIONAL(ARCH_HPPA, test x$target_arch = xhppa) 150 AM_CONDITIONAL(ARCH_MIPS, test x$target_arch = xmips) 151 AM_CONDITIONAL(ARCH_X86, test x$target_arch = xx86) 152 AM_CONDITIONAL(ARCH_X86_64, test x$target_arch = xx86_64) 153 AM_CONDITIONAL(ARCH_PPC32, test x$target_arch = xppc32) 154 AM_CONDITIONAL(ARCH_PPC64, test x$target_arch = xppc64) 155 AM_CONDITIONAL(ARCH_SH, test x$target_arch = xsh) 156 AM_CONDITIONAL(OS_LINUX, expr x$target_os : xlinux >/dev/null) 157 AM_CONDITIONAL(OS_HPUX, expr x$target_os : xhpux >/dev/null) 158 AM_CONDITIONAL(OS_FREEBSD, expr x$target_os : xfreebsd >/dev/null) 159 AM_CONDITIONAL(OS_QNX, expr x$target_os : xnto-qnx >/dev/null) 160 161 AC_MSG_CHECKING([for ELF helper width]) 162 case "${target_arch}" in 163 (arm|hppa|ppc32|x86|sh) use_elf32=yes; AC_MSG_RESULT([32]);; 164 (aarch64|ia64|ppc64|x86_64) use_elf64=yes; AC_MSG_RESULT([64]);; 165 (mips) use_elfxx=yes; AC_MSG_RESULT([xx]);; 166 *) AC_MSG_ERROR([Unknown ELF target: ${target_arch}]) 167 esac 168 AM_CONDITIONAL(USE_ELF32, [test x$use_elf32 = xyes]) 169 AM_CONDITIONAL(USE_ELF64, [test x$use_elf64 = xyes]) 170 AM_CONDITIONAL(USE_ELFXX, [test x$use_elfxx = xyes]) 171 172 AC_MSG_CHECKING([whether to include DWARF support]) 173 if test x$target_arch != xia64; then 174 use_dwarf=yes 175 else 176 use_dwarf=no 177 fi 178 AM_CONDITIONAL(USE_DWARF, [test x$use_dwarf = xyes]) 179 AC_MSG_RESULT([$use_dwarf]) 180 181 if test x$target_arch = xppc64; then 182 libdir='${exec_prefix}/lib64' 183 AC_MSG_NOTICE([PowerPC64 detected, lib will be installed ${libdir}]); 184 AC_SUBST([libdir]) 185 fi 186 187 AC_MSG_CHECKING([whether to restrict build to remote support]) 188 if test x$target_arch != x$host_arch; then 189 CPPFLAGS="${CPPFLAGS} -DUNW_REMOTE_ONLY" 190 remote_only=yes 191 else 192 remote_only=no 193 fi 194 AC_MSG_RESULT([$remote_only]) 195 196 AC_MSG_CHECKING([whether to enable debug support]) 197 AC_ARG_ENABLE(debug, 198 AS_HELP_STRING([--enable-debug],[turn on debug support (slows down execution)])) 199 if test x$enable_debug = xyes; then 200 CPPFLAGS="${CPPFLAGS} -DDEBUG" 201 else 202 CPPFLAGS="${CPPFLAGS} -DNDEBUG" 203 fi 204 AC_MSG_RESULT([$enable_debug]) 205 206 AC_MSG_CHECKING([whether to enable C++ exception support]) 207 AC_ARG_ENABLE(cxx_exceptions, 208 AS_HELP_STRING([--enable-cxx-exceptions],[use libunwind to handle C++ exceptions]),, 209 [ 210 # C++ exception handling doesn't work too well on x86 211 case $target_arch in 212 x86*) enable_cxx_exceptions=no;; 213 aarch64*) enable_cxx_exceptions=no;; 214 arm*) enable_cxx_exceptions=no;; 215 mips*) enable_cxx_exceptions=no;; 216 *) enable_cxx_exceptions=yes;; 217 esac 218 ]) 219 220 AM_CONDITIONAL([SUPPORT_CXX_EXCEPTIONS], [test x$enable_cxx_exceptions = xyes]) 221 AC_MSG_RESULT([$enable_cxx_exceptions]) 222 223 AC_MSG_CHECKING([whether to load .debug_frame sections]) 224 AC_ARG_ENABLE(debug_frame, 225 AS_HELP_STRING([--enable-debug-frame],[Load the ".debug_frame" section if available]),, [ 226 case "${target_arch}" in 227 (arm) enable_debug_frame=yes;; 228 (*) enable_debug_frame=no;; 229 esac]) 230 if test x$enable_debug_frame = xyes; then 231 AC_DEFINE([CONFIG_DEBUG_FRAME], [], [Enable Debug Frame]) 232 fi 233 AC_MSG_RESULT([$enable_debug_frame]) 234 235 AC_MSG_CHECKING([whether to block signals during mutex ops]) 236 AC_ARG_ENABLE(block_signals, 237 AS_HELP_STRING([--enable-block-signals],[Block signals before performing mutex operations]),, 238 [enable_block_signals=yes]) 239 if test x$enable_block_signals = xyes; then 240 AC_DEFINE([CONFIG_BLOCK_SIGNALS], [], [Block signals before mutex operations]) 241 fi 242 AC_MSG_RESULT([$enable_block_signals]) 243 244 AC_MSG_CHECKING([whether to validate memory addresses before use]) 245 AC_ARG_ENABLE(conservative_checks, 246 AS_HELP_STRING([--enable-conservative-checks],[Validate all memory addresses before use]),, 247 [enable_conservative_checks=yes]) 248 if test x$enable_conservative_checks = xyes; then 249 AC_DEFINE(CONSERVATIVE_CHECKS, 1, 250 [Define to 1 if you want every memory access validated]) 251 fi 252 AC_MSG_RESULT([$enable_conservative_checks]) 253 254 AC_MSG_CHECKING([whether to enable msabi support]) 255 AC_ARG_ENABLE(msabi_support, 256 AS_HELP_STRING([--enable-msabi-support],[Enables support for Microsoft ABI extensions])) 257 if test x$enable_msabi_support = xyes; then 258 AC_DEFINE([CONFIG_MSABI_SUPPORT], [], [Support for Microsoft ABI extensions]) 259 fi 260 AC_MSG_RESULT([$enable_msabi_support]) 261 262 LIBLZMA= 263 AC_MSG_CHECKING([whether to support LZMA-compressed symbol tables]) 264 AC_ARG_ENABLE(minidebuginfo, 265 AS_HELP_STRING([--enable-minidebuginfo], [Enables support for LZMA-compressed symbol tables]),, [enable_minidebuginfo=auto]) 266 AC_MSG_RESULT([$enable_minidebuginfo]) 267 if test x$enable_minidebuginfo != xno; then 268 AC_CHECK_LIB([lzma], [lzma_mf_is_supported], 269 [LIBLZMA=-llzma 270 AC_DEFINE([HAVE_LZMA], [1], [Define if you have liblzma]) 271 enable_minidebuginfo=yes], 272 [if test x$enable_minidebuginfo = xyes; then 273 AC_MSG_FAILURE([liblzma not found]) 274 fi]) 275 fi 276 AC_SUBST([LIBLZMA]) 277 AM_CONDITIONAL(HAVE_LZMA, test x$enable_minidebuginfo = xyes) 278 279 LIBUNWIND___THREAD 280 281 AC_MSG_CHECKING([for Intel compiler]) 282 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#ifndef __INTEL_COMPILER 283 #error choke me 284 #endif]])],[intel_compiler=yes],[intel_compiler=no]) 285 286 if test x$GCC = xyes -a x$intel_compiler != xyes; then 287 CFLAGS="${CFLAGS} -fexceptions -Wall -Wsign-compare" 288 fi 289 AC_MSG_RESULT([$intel_compiler]) 290 291 AC_MSG_CHECKING([for QCC compiler]) 292 AS_CASE([$CC], [qcc*|QCC*], [qcc_compiler=yes], [qcc_compiler=no]) 293 AC_MSG_RESULT([$qcc_compiler]) 294 295 if test x$intel_compiler = xyes; then 296 AC_MSG_CHECKING([if linker supports -static-libcxa]) 297 save_LDFLAGS="$LDFLAGS" 298 LDFLAGS="$LDFLAGS -static-libcxa" 299 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[have_static_libcxa=yes],[have_static_libcxa=no]) 300 LDFLAGS="$save_LDFLAGS" 301 if test "x$have_static_libcxa" = xyes; then 302 LDFLAGS_STATIC_LIBCXA="-XCClinker -static-libcxa" 303 fi 304 AC_MSG_RESULT([$have_static_libcxa]) 305 fi 306 307 if test x$qcc_compiler = xyes; then 308 LDFLAGS_NOSTARTFILES="-XCClinker -Wc,-nostartfiles" 309 else 310 LDFLAGS_NOSTARTFILES="-XCClinker -nostartfiles" 311 fi 312 313 if test x$GCC = xyes -a x$intel_compiler != xyes -a x$qcc_compiler != xyes; then 314 LIBCRTS="-lgcc" 315 fi 316 317 AC_MSG_CHECKING([for __builtin___clear_cache]) 318 AC_LINK_IFELSE( 319 [AC_LANG_PROGRAM([[]], [[__builtin___clear_cache(0, 0)]])], 320 [have__builtin___clear_cache=yes], 321 [have__builtin___clear_cache=no]) 322 if test x$have__builtin___clear_cache = xyes; then 323 AC_DEFINE([HAVE__BUILTIN___CLEAR_CACHE], [1], 324 [Defined if __builtin___clear_cache() is available]) 325 fi 326 AC_MSG_RESULT([$have__builtin___clear_cache]) 327 328 AC_MSG_CHECKING([for __builtin_unreachable]) 329 AC_LINK_IFELSE( 330 [AC_LANG_PROGRAM([[]], [[__builtin_unreachable()]])], 331 [have__builtin_unreachable=yes], 332 [have__builtin_unreachable=no]) 333 if test x$have__builtin_unreachable = xyes; then 334 AC_DEFINE([HAVE__BUILTIN_UNREACHABLE], [1], 335 [Defined if __builtin_unreachable() is available]) 336 fi 337 AC_MSG_RESULT([$have__builtin_unreachable]) 338 339 AC_MSG_CHECKING([for __sync atomics]) 340 AC_LINK_IFELSE( 341 [AC_LANG_PROGRAM([[]], [[ 342 __sync_bool_compare_and_swap((int *)0, 0, 1); 343 __sync_fetch_and_add((int *)0, 1); 344 ]])], 345 [have_sync_atomics=yes], 346 [have_sync_atomics=no]) 347 if test x$have_sync_atomics = xyes; then 348 AC_DEFINE([HAVE_SYNC_ATOMICS], [1], 349 [Defined if __sync atomics are available]) 350 fi 351 AC_MSG_RESULT([$have_sync_atomics]) 352 353 CCASFLAGS="${CCASFLAGS} ${CPPFLAGS}" 354 355 arch="$target_arch" 356 ARCH=`echo $target_arch | tr [a-z] [A-Z]` 357 358 dnl create shell variables from the M4 macros: 359 PKG_MAJOR=pkg_major 360 PKG_MINOR=pkg_minor 361 PKG_EXTRA=pkg_extra 362 PKG_MAINTAINER=pkg_maintainer 363 364 old_LIBS="$LIBS" 365 LIBS="" 366 AC_SEARCH_LIBS(backtrace, execinfo) 367 LIBS="$old_LIBS" 368 369 AC_SUBST(build_arch) 370 AC_SUBST(target_os) 371 AC_SUBST(arch) 372 AC_SUBST(ARCH) 373 AC_SUBST(LDFLAGS_STATIC_LIBCXA) 374 AC_SUBST(LDFLAGS_NOSTARTFILES) 375 AC_SUBST(LIBCRTS) 376 AC_SUBST(PKG_MAJOR) 377 AC_SUBST(PKG_MINOR) 378 AC_SUBST(PKG_EXTRA) 379 AC_SUBST(PKG_MAINTAINER) 380 AC_SUBST(enable_cxx_exceptions) 381 AC_SUBST(enable_debug_frame) 382 AC_SUBST(DLLIB) 383 384 AC_CONFIG_FILES(Makefile src/Makefile tests/Makefile tests/check-namespace.sh 385 doc/Makefile doc/common.tex include/libunwind-common.h 386 include/libunwind.h include/tdep/libunwind_i.h) 387 AC_CONFIG_FILES(src/unwind/libunwind.pc src/coredump/libunwind-coredump.pc 388 src/ptrace/libunwind-ptrace.pc src/setjmp/libunwind-setjmp.pc 389 src/libunwind-generic.pc) 390 AC_OUTPUT 391
