2012-11-15 Pierre Muller <muller@sourceware.org>

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

diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac
index d81f24153dd98a6a7c66af421930ea03f0dd8bbd..46f5dc024dc6aad26e888f9c26f460d8ac82f37f 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, 2011 Free Software Foundation, Inc.
+dnl Copyright (C) 2000, 2002-2012 Free Software Foundation, Inc.
 dnl
 dnl This file is part of GDB.
 dnl
@@ -23,29 +22,42 @@ 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
-AC_PROG_RANLIB
 AC_GNU_SOURCE
 
 AC_CANONICAL_SYSTEM
 
 AC_PROG_INSTALL
+AC_PROG_RANLIB
 
 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)
+
+# 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"])
+
 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 vasprintf vsnprintf)
+                netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h)
+AC_CHECK_FUNCS(pread pwrite pread64 readlink)
+AC_REPLACE_FUNCS(vasprintf vsnprintf)
 
 # Check for UST
 ustlibs=""
@@ -162,13 +174,17 @@ AC_TRY_LINK([
   [AC_MSG_RESULT(no)])
 fi
 
-AC_CHECK_DECLS([strerror, perror, memmem, vasprintf, vsnprintf])
+AC_CHECK_DECLS([strerror, strstr, perror, 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], ["$PKGVERSION"], [Additional package description])
@@ -269,6 +285,16 @@ if test "$ac_cv_header_sys_procfs_h" = yes; then
   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="$LIBS"
@@ -358,6 +384,29 @@ AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
                        [gdbsrv_cv_have_visibility_hidden=no])
 CFLAGS="$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=""
@@ -397,6 +446,14 @@ 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/$STDINT_H
+fi
+AC_SUBST(GNULIB_STDINT_H)
+
 AC_OUTPUT(Makefile,
 [case x$CONFIG_HEADERS in
 xconfig.h:config.in)