dnl Autoconf configure script for GDB server. dnl Copyright (C) 2000-2019 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_INIT(server.c) AC_CONFIG_HEADER(config.h:config.in) AM_MAINTAINER_MODE AC_PROG_CC AC_PROG_CXX AC_GNU_SOURCE AC_SYS_LARGEFILE AC_CANONICAL_SYSTEM AC_PROG_INSTALL AC_CHECK_TOOL(AR, ar) AC_PROG_RANLIB AC_ARG_PROGRAM # We require a C++11 compiler. Check if one is available, and if # necessary, set CXX_DIALECT to some -std=xxx switch. AX_CXX_COMPILE_STDCXX(11, , mandatory) AC_HEADER_STDC # Set the 'development' global. . $srcdir/../../bfd/development.sh # Enable -lmcheck by default (it provides cheap-enough memory # mangling), but turn it off for releases. if $development; then libmcheck_default=yes else libmcheck_default=no fi GDB_AC_LIBMCHECK(${libmcheck_default}) GDB_AC_SELFTEST([ srv_selftest_objs="gdbsupport/selftest.o" ]) ACX_NONCANONICAL_TARGET ACX_NONCANONICAL_HOST # Dependency checking. ZW_CREATE_DEPDIR # Create sub-directories for objects and dependencies. CONFIG_SRC_SUBDIR="arch gdbsupport" AC_SUBST(CONFIG_SRC_SUBDIR) AC_CONFIG_COMMANDS([gdbdepdir],[ for subdir in ${CONFIG_SRC_SUBDIR} do $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR done], [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"]) ZW_PROG_COMPILER_DEPENDENCIES([CC]) gnulib_extra_configure_args= # If large-file support is disabled, make sure gnulib does the same. if test "$enable_largefile" = no; then gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile" fi # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect # to find the the source subdir to be configured directly under # gdbserver/. We need to build gnulib under some other directory not # "gnulib", to avoid the problem of both GDB and GDBserver wanting to # build it in the same directory, when building in the source dir. ACX_CONFIGURE_DIR(["../../gnulib"], ["build-gnulib-gdbserver"], ["$gnulib_extra_configure_args"]) ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"]) AC_CHECK_HEADERS(termios.h sys/reg.h string.h dnl proc_service.h sys/procfs.h linux/elf.h dnl fcntl.h signal.h sys/file.h dnl sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl netinet/tcp.h arpa/inet.h) AC_FUNC_FORK AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns) GDB_AC_COMMON # Check the return and argument types of ptrace. GDB_AC_PTRACE # 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) AM_GDB_WARNINGS 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="$old_LIBS" libiberty_INIT AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf]) AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize]) # See if supports the %fs_base and %gs_bas amd64 segment registers. # Older amd64 Linux's don't have the fs_base and gs_base members of # `struct user_regs_struct'. AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base], [], [], [#include #include ]) AC_CHECK_TYPES(socklen_t, [], [], [#include #include ]) case "${target}" in *-android*) # Starting with NDK version 9, actually includes definitions # of Elf32_auxv_t and Elf64_auxv_t. But sadly, includes # which defines some of the ELF types incorrectly, # leading to conflicts with the defintions from . # This makes it impossible for us to include both and # , which means that, in practice, we do not have # access to Elf32_auxv_t and Elf64_auxv_t on this platform. # Therefore, do not try to auto-detect availability, as it would # get it wrong on this platform. ;; *) AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [], #include ) esac 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"]) ;; x86_64-*-linux*) AC_CACHE_CHECK([if building for x32], [gdb_cv_x86_is_x32], [save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $CFLAGS" AC_EGREP_CPP([got it], [ #if __x86_64__ && __ILP32__ got it #endif ], [gdb_cv_x86_is_x32=yes], [gdb_cv_x86_is_x32=no]) CPPFLAGS="$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 # Add in the common host objects. . ${srcdir}/../gdbsupport/common.host srv_host_obs="$common_host_obs" 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 "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1, [Define if the target supports PTRACE_GETFPXREGS for extended ] [register access.]) fi fi if test "${srv_linux_btrace}" = "yes"; then AC_DEFINE(HAVE_LINUX_BTRACE, 1, [Define if the target supports branch tracing.]) fi if test "$ac_cv_header_sys_procfs_h" = yes; then BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t) BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t) BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t) BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t) BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t) fi dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h. if test "$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="$old_LIBS" srv_thread_depfiles= srv_libs= if test "$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" AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_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 $srv_host_obs $srv_selftest_objs" GDBSERVER_LIBS="$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="$extra_libraries libinproctrace.so" else AC_MSG_ERROR([inprocess agent not supported for this target]) fi fi AC_SUBST(GDBSERVER_DEPFILES) AC_SUBST(GDBSERVER_LIBS) AC_SUBST(srv_xmlbuiltin) AC_SUBST(srv_xmlfiles) AC_SUBST(IPA_DEPFILES) AC_SUBST(extra_libraries) GNULIB=build-gnulib-gdbserver/import GNULIB_STDINT_H= if test x"$STDINT_H" != x; then GNULIB_STDINT_H=$GNULIB/$STDINT_H fi AC_SUBST(GNULIB_STDINT_H) AC_CONFIG_FILES([Makefile], [case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac ]) AC_OUTPUT