gdb/gdbserver/

[deliverable/binutils-gdb.git] / gdb / gdbserver / configure.ac

diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac
index 24ef9a8d3d15f721ce9d1bad704e22cf233b4e64..5e989fa8b32d1351153c3d05cc70057d7812d77f 100644 (file)
--- a/gdb/gdbserver/configure.ac
+++ b/gdb/gdbserver/configure.ac
@@ -1,6 +1,5 @@
 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, 2002-2012 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GDB.
 dnl
@@ -23,9 +22,11 @@ AC_PREREQ(2.59)dnl
 
 AC_INIT(server.c)
 AC_CONFIG_HEADER(config.h:config.in)
-AC_CONFIG_LIBOBJ_DIR(../gnulib)
+
+AM_MAINTAINER_MODE
 
 AC_PROG_CC
+gl_EARLY
 AC_GNU_SOURCE
 
 AC_CANONICAL_SYSTEM
@@ -35,15 +36,21 @@ 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)
-AC_CHECK_FUNCS(pread pwrite pread64)
-AC_REPLACE_FUNCS(memmem)
+                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=""
@@ -112,7 +119,7 @@ if test "${ERROR_ON_WARNING}" = yes ; then
 fi
 
 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
--Wformat-nonliteral "
+-Wformat-nonliteral -Wno-char-subscripts"
 
 WARN_CFLAGS=""
 if test "x$GCC" = xyes
@@ -160,13 +167,17 @@ AC_TRY_LINK([
   [AC_MSG_RESULT(no)])
 fi
 
-AC_CHECK_DECLS([strerror, perror, memmem])
+AC_CHECK_DECLS([strerror, perror, memmem, vasprintf, vsnprintf])
 
 AC_CHECK_TYPES(socklen_t, [], [],
 [#include <sys/types.h>
 #include <sys/socket.h>
 ])
 
+AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
+#include <elf.h>
+)
+
 ACX_PKGVERSION([GDB])
 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
@@ -211,6 +222,8 @@ elif test "${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 "${srv_mingw}" = "yes"; then
@@ -354,15 +367,58 @@ AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
                        [gdbsrv_cv_have_visibility_hidden=no])
 CFLAGS="$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)
@@ -373,7 +429,18 @@ AC_SUBST(srv_xmlfiles)
 AC_SUBST(IPA_DEPFILES)
 AC_SUBST(extra_libraries)
 
-AC_OUTPUT(Makefile,
+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 ;;