dnl Autoconf configure script for GDB server. dnl Copyright (C) 2000, 2002-2012 Free Software Foundation, Inc. dnl dnl This file is part of GDB. dnl dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 3 of the License, or dnl (at your option) any later version. dnl dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program. If not, see . dnl Process this file with autoconf to produce a configure script. AC_PREREQ(2.59)dnl AC_INIT(server.c) AC_CONFIG_HEADER(config.h:config.in) AM_MAINTAINER_MODE AC_PROG_CC gl_EARLY AC_GNU_SOURCE AC_CANONICAL_SYSTEM AC_PROG_INSTALL AC_ARG_PROGRAM AC_HEADER_STDC AC_HEADER_DIRENT AC_FUNC_ALLOCA # Check for the 'make' the user wants to use. AC_CHECK_PROGS(MAKE, make) AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl proc_service.h sys/procfs.h thread_db.h linux/elf.h dnl stdlib.h unistd.h dnl errno.h fcntl.h signal.h sys/file.h malloc.h dnl sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl netinet/tcp.h arpa/inet.h sys/wait.h sys/un.h) AC_CHECK_FUNCS(pread pwrite pread64 readlink) AC_REPLACE_FUNCS(vasprintf vsnprintf) # Check for UST ustlibs="" ustinc="" AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package Equivalent to --with-ust-include=PATH/include plus --with-ust-lib=PATH/lib]) AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files]) AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library]) case $with_ust in no) ustlibs= ustinc= ;; "" | yes) ustlibs=" -lust " ustinc="" ;; *) ustlibs="-L$with_ust/lib -lust" ustinc="-I$with_ust/include " ;; esac if test "x$with_ust_include" != x; then ustinc="-I$with_ust_include " fi if test "x$with_ust_lib" != x; then ustlibs="-L$with_ust_lib -lust" fi if test "x$with_ust" != "xno"; then saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $ustinc" AC_MSG_CHECKING([for ust]) AC_TRY_COMPILE([ #define CONFIG_UST_GDB_INTEGRATION #include ],[], [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])], [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ]) CFLAGS="$saved_CFLAGS" fi # Flags needed for UST AC_SUBST(ustlibs) AC_SUBST(ustinc) AC_ARG_ENABLE(werror, AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]), [case "${enableval}" in yes | y) ERROR_ON_WARNING="yes" ;; no | n) ERROR_ON_WARNING="no" ;; *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;; esac]) # Enable -Werror by default when using gcc if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then ERROR_ON_WARNING=yes fi WERROR_CFLAGS="" if test "${ERROR_ON_WARNING}" = yes ; then WERROR_CFLAGS="-Werror" fi build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \ -Wformat-nonliteral -Wno-char-subscripts" WARN_CFLAGS="" if test "x$GCC" = xyes then AC_MSG_CHECKING(compiler warning flags) # Separate out the -Werror flag as some files just cannot be # compiled with it enabled. for w in ${build_warnings}; do case $w in -Werr*) WERROR_CFLAGS=-Werror ;; *) # Check that GCC accepts it saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $w" AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",) CFLAGS="$saved_CFLAGS" esac done AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS}) fi AC_SUBST(WARN_CFLAGS) AC_SUBST(WERROR_CFLAGS) dnl dladdr is glibc-specific. It is used by thread-db.c but only for dnl debugging messages. It lives in -ldl which is handled below so we don't dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily dnl augment LIBS. old_LIBS="$LIBS" LIBS="$LIBS -ldl" AC_CHECK_FUNCS(dladdr) LIBS="$old_LIBS" have_errno=no AC_MSG_CHECKING(for errno) AC_TRY_LINK([ #if HAVE_ERRNO_H #include #endif], [static int x; x = errno;], [AC_MSG_RESULT(yes - in errno.h); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) have_errno=yes]) if test $have_errno = no; then AC_TRY_LINK([ #if HAVE_ERRNO_H #include #endif], [extern int errno; static int x; x = errno;], [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])], [AC_MSG_RESULT(no)]) fi AC_CHECK_DECLS([strerror, perror, memmem, vasprintf, vsnprintf]) AC_CHECK_TYPES(socklen_t, [], [], [#include #include ]) AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [], #include ) ACX_PKGVERSION([GDB]) ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/]) AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description]) AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address]) # Check for various supplementary target information (beyond the # triplet) which might affect the choices in configure.srv. case "${target}" in changequote(,)dnl i[34567]86-*-linux*) changequote([,])dnl AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64], [save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $CFLAGS" AC_EGREP_CPP([got it], [ #if __x86_64__ got it #endif ], [gdb_cv_i386_is_x86_64=yes], [gdb_cv_i386_is_x86_64=no]) CPPFLAGS="$save_CPPFLAGS"]) ;; m68k-*-*) AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire], [save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $CFLAGS" AC_EGREP_CPP([got it], [ #ifdef __mcoldfire__ got it #endif ], [gdb_cv_m68k_is_coldfire=yes], [gdb_cv_m68k_is_coldfire=no]) CPPFLAGS="$save_CPPFLAGS"]) ;; esac . ${srcdir}/configure.srv if test "${srv_mingwce}" = "yes"; then LIBS="$LIBS -lws2" elif test "${srv_mingw}" = "yes"; then LIBS="$LIBS -lws2_32" elif test "${srv_qnx}" = "yes"; then LIBS="$LIBS -lsocket" elif test "${srv_lynxos}" = "yes"; then LIBS="$LIBS -lnetinet" fi if test "${srv_mingw}" = "yes"; then AC_DEFINE(USE_WIN32API, 1, [Define if we should use the Windows API, instead of the POSIX API. On Windows, we use the Windows API when building for MinGW, but the POSIX API when building for Cygwin.]) fi if test "${srv_linux_usrregs}" = "yes"; then AC_DEFINE(HAVE_LINUX_USRREGS, 1, [Define if the target supports PTRACE_PEEKUSR for register ] [access.]) fi if test "${srv_linux_regsets}" = "yes"; then AC_DEFINE(HAVE_LINUX_REGSETS, 1, [Define if the target supports register sets.]) AC_MSG_CHECKING(for PTRACE_GETREGS) AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs, [AC_TRY_COMPILE([#include ], [PTRACE_GETREGS;], [gdbsrv_cv_have_ptrace_getregs=yes], [gdbsrv_cv_have_ptrace_getregs=no])]) AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs) if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then AC_DEFINE(HAVE_PTRACE_GETREGS, 1, [Define if the target supports PTRACE_GETREGS for register ] [access.]) fi AC_MSG_CHECKING(for PTRACE_GETFPXREGS) AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs, [AC_TRY_COMPILE([#include ], [PTRACE_GETFPXREGS;], [gdbsrv_cv_have_ptrace_getfpxregs=yes], [gdbsrv_cv_have_ptrace_getfpxregs=no])]) AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs) if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1, [Define if the target supports PTRACE_GETFPXREGS for extended ] [register access.]) fi fi if test "$ac_cv_header_sys_procfs_h" = yes; then BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t) BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t) BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t) BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t) fi dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h. if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t) fi dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h. if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t) fi dnl Check for libdl, but do not add it to LIBS as only gdbserver dnl needs it (and gdbreplay doesn't). old_LIBS="$LIBS" AC_CHECK_LIB(dl, dlopen) LIBS="$old_LIBS" srv_thread_depfiles= srv_libs= USE_THREAD_DB= if test "$srv_linux_thread_db" = "yes"; then if test "$ac_cv_lib_dl_dlopen" = "yes"; then srv_libs="-ldl" AC_MSG_CHECKING(for the dynamic export flag) old_LDFLAGS="$LDFLAGS" # Older GNU ld supports --export-dynamic but --dynamic-list may not be # supported there. RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list" LDFLAGS="$LDFLAGS $RDYNAMIC" AC_TRY_LINK([], [], [found="-Wl,--dynamic-list" RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'], [RDYNAMIC="-rdynamic" LDFLAGS="$old_LDFLAGS $RDYNAMIC" AC_TRY_LINK([], [], [found="-rdynamic"], [found="no" RDYNAMIC=""])]) AC_SUBST(RDYNAMIC) LDFLAGS="$old_LDFLAGS" AC_MSG_RESULT($found) else srv_libs="-lthread_db" fi srv_thread_depfiles="thread-db.o proc-service.o" USE_THREAD_DB="-DUSE_THREAD_DB" AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version, [AC_TRY_COMPILE([#include ], [TD_VERSION;], [gdbsrv_cv_have_td_version=yes], [gdbsrv_cv_have_td_version=no])]) if test $gdbsrv_cv_have_td_version = yes; then AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.]) fi fi AC_ARG_WITH(libthread-db, AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]), [srv_libthread_db_path="${withval}" srv_libs="$srv_libthread_db_path" ]) if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.]) fi if test "$srv_xmlfiles" != ""; then srv_xmlbuiltin="xml-builtin.o" AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.]) tmp_xmlfiles=$srv_xmlfiles srv_xmlfiles="" for f in $tmp_xmlfiles; do srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f" done fi GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles" GDBSERVER_LIBS="$srv_libs" dnl Check whether the target supports __sync_*_compare_and_swap. AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap], gdbsrv_cv_have_sync_builtins, [ AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);], gdbsrv_cv_have_sync_builtins=yes, gdbsrv_cv_have_sync_builtins=no)]) if test $gdbsrv_cv_have_sync_builtins = yes; then AC_DEFINE(HAVE_SYNC_BUILTINS, 1, [Define to 1 if the target supports __sync_*_compare_and_swap]) fi dnl Check for -fvisibility=hidden support in the compiler. saved_cflags="$CFLAGS" CFLAGS="$CFLAGS -fvisibility=hidden" AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), [gdbsrv_cv_have_visibility_hidden=yes], [gdbsrv_cv_have_visibility_hidden=no]) CFLAGS="$saved_cflags" dnl Check if we can disable the virtual address space randomization. dnl The functionality of setarch -R. AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include ]) define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include ], [ # if !HAVE_DECL_ADDR_NO_RANDOMIZE # define ADDR_NO_RANDOMIZE 0x0040000 # endif /* Test the flag could be set and stays set. */ personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE); if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE)) return 1])]) AC_RUN_IFELSE([PERSONALITY_TEST], [gdbsrv_cv_have_personality=true], [gdbsrv_cv_have_personality=false], [AC_LINK_IFELSE([PERSONALITY_TEST], [gdbsrv_cv_have_personality=true], [gdbsrv_cv_have_personality=false])]) if $gdbsrv_cv_have_personality then AC_DEFINE([HAVE_PERSONALITY], 1, [Define if you support the personality syscall.]) fi IPA_DEPFILES="" extra_libraries="" # check whether to enable the inprocess agent if test "$ipa_obj" != "" \ -a "$gdbsrv_cv_have_sync_builtins" = yes \ -a "$gdbsrv_cv_have_visibility_hidden" = yes; then have_ipa=true else have_ipa=false fi AC_ARG_ENABLE(inprocess-agent, AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]), [case "$enableval" in yes) want_ipa=true ;; no) want_ipa=false ;; *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;; esac], [want_ipa=$have_ipa]) if $want_ipa ; then if $have_ipa ; then IPA_DEPFILES="$ipa_obj" extra_libraries="$extra_libraries libinproctrace.so" else AC_MSG_ERROR([inprocess agent not supported for this target]) fi fi AC_SUBST(GDBSERVER_DEPFILES) AC_SUBST(GDBSERVER_LIBS) AC_SUBST(USE_THREAD_DB) AC_SUBST(srv_xmlbuiltin) AC_SUBST(srv_xmlfiles) AC_SUBST(IPA_DEPFILES) AC_SUBST(extra_libraries) gl_INIT # GDBserver does not use automake, but gnulib does. This line lets # us generate its Makefile.in. AM_INIT_AUTOMAKE(gdbserver, UNUSED-VERSION, [no-define]) GNULIB_STDINT_H= if test x"$STDINT_H" != x; then GNULIB_STDINT_H=gnulib/$STDINT_H fi AC_SUBST(GNULIB_STDINT_H) AC_OUTPUT(Makefile gnulib/Makefile:${srcdir}/../gnulib/Makefile.in, [case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac ])