dnl Autoconf configure script for GDB server.
-dnl Copyright (C) 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-dnl 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2020 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
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)
-AC_CONFIG_LIBOBJ_DIR(../gnulib)
+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
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
-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
+# 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"
+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 sys/wait.h)
-AC_CHECK_FUNCS(pread pwrite pread64)
-AC_REPLACE_FUNCS(memmem)
+ 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=""
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 "
-
-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} ${WERROR_CFLAGS})
-fi
-AC_SUBST(WARN_CFLAGS)
-AC_SUBST(WERROR_CFLAGS)
+AM_GDB_WARNINGS
dnl dladdr is glibc-specific. It is used by thread-db.c but only for
dnl debugging messages. It lives in -ldl which is handled below so we don't
AC_CHECK_FUNCS(dladdr)
LIBS="$old_LIBS"
-have_errno=no
-AC_MSG_CHECKING(for errno)
-AC_TRY_LINK([
-#if HAVE_ERRNO_H
-#include <errno.h>
-#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 $have_errno = no; then
-AC_TRY_LINK([
-#if HAVE_ERRNO_H
-#include <errno.h>
-#endif], [extern int errno; static int x; x = errno;],
- [AC_MSG_RESULT(yes - must define); AC_DEFINE(HAVE_ERRNO, 1, [Define if errno is available]) AC_DEFINE(MUST_DEFINE_ERRNO, 1, [Checking if errno must be defined])],
- [AC_MSG_RESULT(no)])
-fi
+libiberty_INIT
+
+AC_CHECK_DECLS([perror, vasprintf, vsnprintf])
+
+AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
+
+# See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
+# Older amd64 Linux's don't have the fs_base and gs_base members of
+# `struct user_regs_struct'.
+AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
+ [], [], [#include <sys/types.h>
+#include <sys/user.h>])
-AC_CHECK_DECLS([strerror, perror, memmem])
AC_CHECK_TYPES(socklen_t, [], [],
[#include <sys/types.h>
#include <sys/socket.h>
])
+case "${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], ["$PKGVERSION"], [Additional package description])
[gdb_cv_i386_is_x86_64=no])
CPPFLAGS="$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="$CPPFLAGS"
LIBS="$LIBS -lws2_32"
elif test "${srv_qnx}" = "yes"; then
LIBS="$LIBS -lsocket"
+elif test "${srv_lynxos}" = "yes"; then
+ LIBS="$LIBS -lnetinet"
fi
if test "${srv_mingw}" = "yes"; then
fi
fi
+if test "${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"
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
fi
srv_thread_depfiles="thread-db.o proc-service.o"
- USE_THREAD_DB="-DUSE_THREAD_DB"
+ 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 $gdbsrv_cv_have_td_version = yes; then
+ if test "$gdbsrv_cv_have_td_version" = yes; then
AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
fi
fi
done
fi
-GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles"
+GDBSERVER_DEPFILES="$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_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 $gdbsrv_cv_have_sync_builtins = yes; then
+if test "$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([]),
+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 <sys/personality.h>])
+define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
+# 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 $gdbsrv_cv_have_personality
+then
+ AC_DEFINE([HAVE_PERSONALITY], 1,
+ [Define if you support the personality syscall.])
+fi
+
+
IPA_DEPFILES=""
+extra_libraries=""
-# Rather than allowing to build a broken IPA, we simply disable it if
-# we don't find a compiler supporting all the features we need.
+# check whether to enable the inprocess agent
if test "$ipa_obj" != "" \
-a "$gdbsrv_cv_have_sync_builtins" = yes \
-a "$gdbsrv_cv_have_visibility_hidden" = yes; then
- IPA_DEPFILES="$ipa_obj"
- extra_libraries="libinproctrace.so"
+ have_ipa=true
+else
+ have_ipa=false
+fi
+
+AC_ARG_ENABLE(inprocess-agent,
+AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
+[case "$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="$extra_libraries libinproctrace.so"
+ else
+ AC_MSG_ERROR([inprocess agent not supported for this target])
+ fi
fi
AC_SUBST(GDBSERVER_DEPFILES)
AC_SUBST(GDBSERVER_LIBS)
-AC_SUBST(USE_THREAD_DB)
AC_SUBST(srv_xmlbuiltin)
AC_SUBST(srv_xmlfiles)
AC_SUBST(IPA_DEPFILES)
AC_SUBST(extra_libraries)
-AC_OUTPUT(Makefile,
-[case x$CONFIG_HEADERS in
-xconfig.h:config.in)
-echo > stamp-h ;;
-esac
-])
+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
projects / deliverable / binutils-gdb.git / blobdiff