diff options
Diffstat (limited to 'gdbserver/configure.ac')
| -rw-r--r-- | gdbserver/configure.ac | 445 |
1 files changed, 445 insertions, 0 deletions
diff --git a/gdbserver/configure.ac b/gdbserver/configure.ac new file mode 100644 index 0000000..285a297 --- /dev/null +++ b/gdbserver/configure.ac @@ -0,0 +1,445 @@ +dnl Autoconf configure script for GDB server. +dnl Copyright (C) 2000-2020 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 <http://www.gnu.org/licenses/>. + +dnl Process this file with autoconf to produce a configure script. + +AC_INIT(server.c) +AC_CONFIG_HEADERS(config.h:config.in, [echo > stamp-h]) + +AM_MAINTAINER_MODE + +AC_PROG_CC +AC_PROG_CXX +AC_GNU_SOURCE +AC_SYS_LARGEFILE +AM_PROG_INSTALL_STRIP + +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 + +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 nat target" +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 + 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(pread pwrite pread64) + +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 $ustinc" + AC_MSG_CHECKING([for ust]) + AC_TRY_COMPILE([ +#define CONFIG_UST_GDB_INTEGRATION +#include <ust/ust.h> + ],[], + [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])], + [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ]) + CFLAGS="$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="$old_LIBS" + +libiberty_INIT + +AC_CHECK_DECLS([perror, vasprintf, vsnprintf]) + +# See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers. +# Older amd64 Linux's don't have the fs_base and gs_base members of +# `struct user_regs_struct'. +AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base], + [], [], [#include <sys/types.h> +#include <sys/user.h>]) + + +AC_CHECK_TYPES(socklen_t, [], [], +[#include <sys/types.h> +#include <sys/socket.h> +]) + +case "${target}" in + *-android*) + # Starting with NDK version 9, <elf.h> actually includes definitions + # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes + # <sys/exec_elf.h> which defines some of the ELF types incorrectly, + # leading to conflicts with the defintions from <linux/elf.h>. + # This makes it impossible for us to include both <elf.h> and + # <linux/elf.h>, 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 <elf.h> + ) +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 + +. ${srcdir}/configure.srv + +if test "${srv_mingwce}" = "yes"; then + LIBS="$LIBS -lws2" +elif test "${srv_mingw}" = "yes"; then + # WIN32APILIBS is set by GDB_AC_COMMON. + LIBS="$LIBS $WIN32APILIBS" +elif test "${srv_qnx}" = "yes"; then + LIBS="$LIBS -lsocket" +elif test "${srv_lynxos}" = "yes"; then + LIBS="$LIBS -lnetinet" +fi + +if test "${srv_linux_usrregs}" = "yes"; then + AC_DEFINE(HAVE_LINUX_USRREGS, 1, + [Define if the target supports PTRACE_PEEKUSR for register ] + [access.]) +fi + +if test "${srv_linux_regsets}" = "yes"; then + AC_DEFINE(HAVE_LINUX_REGSETS, 1, + [Define if the target supports register sets.]) + + AC_MSG_CHECKING(for PTRACE_GETREGS) + AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs, + [AC_TRY_COMPILE([#include <sys/ptrace.h>], + [PTRACE_GETREGS;], + [gdbsrv_cv_have_ptrace_getregs=yes], + [gdbsrv_cv_have_ptrace_getregs=no])]) + AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs) + if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then + AC_DEFINE(HAVE_PTRACE_GETREGS, 1, + [Define if the target supports PTRACE_GETREGS for register ] + [access.]) + fi + + AC_MSG_CHECKING(for PTRACE_GETFPXREGS) + AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs, + [AC_TRY_COMPILE([#include <sys/ptrace.h>], + [PTRACE_GETFPXREGS;], + [gdbsrv_cv_have_ptrace_getfpxregs=yes], + [gdbsrv_cv_have_ptrace_getfpxregs=no])]) + AC_MSG_RESULT($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 + +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($found) + else + srv_libs="-lthread_db" + fi + + srv_thread_depfiles="thread-db.o proc-service.o" + AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.]) + AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version, + [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;], + [gdbsrv_cv_have_td_version=yes], + [gdbsrv_cv_have_td_version=no])]) + if test "$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 $srv_selftest_objs" +GDBSERVER_LIBS="$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" + +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]) + +AC_OUTPUT |