[gdbserver] disable Elf32_auxv_t/Elf64_auxv_t AC_CHECK_TYPES check on Android
[deliverable/binutils-gdb.git] / gdb / gdbserver / configure.ac
1 dnl Autoconf configure script for GDB server.
2 dnl Copyright (C) 2000-2015 Free Software Foundation, Inc.
3 dnl
4 dnl This file is part of GDB.
5 dnl
6 dnl This program is free software; you can redistribute it and/or modify
7 dnl it under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
10 dnl
11 dnl This program is distributed in the hope that it will be useful,
12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 dnl GNU General Public License for more details.
15 dnl
16 dnl You should have received a copy of the GNU General Public License
17 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
18
19 dnl Process this file with autoconf to produce a configure script.
20
21 AC_PREREQ(2.59)dnl
22
23 AC_INIT(server.c)
24 AC_CONFIG_HEADER(config.h:config.in)
25
26 AM_MAINTAINER_MODE
27
28 AC_PROG_CC
29 AC_PROG_CXX
30 AC_GNU_SOURCE
31 AC_SYS_LARGEFILE
32
33 AC_CANONICAL_SYSTEM
34
35 AC_PROG_INSTALL
36 AC_CHECK_TOOL(AR, ar)
37 AC_PROG_RANLIB
38
39 AC_ARG_PROGRAM
40
41 AC_HEADER_STDC
42
43 # See if we are building with C++, and substitute COMPILER.
44 GDB_AC_BUILD_WITH_CXX
45
46 # Set the 'development' global.
47 . $srcdir/../../bfd/development.sh
48
49 # Enable -lmcheck by default (it provides cheap-enough memory
50 # mangling), but turn it off for releases.
51 if $development; then
52 libmcheck_default=yes
53 else
54 libmcheck_default=no
55 fi
56 GDB_AC_LIBMCHECK(${libmcheck_default})
57
58 ACX_NONCANONICAL_TARGET
59 ACX_NONCANONICAL_HOST
60
61 # Dependency checking.
62 ZW_CREATE_DEPDIR
63 ZW_PROG_COMPILER_DEPENDENCIES([CC])
64
65 # Check for the 'make' the user wants to use.
66 AC_CHECK_PROGS(MAKE, make)
67 MAKE_IS_GNU=
68 case "`$MAKE --version 2>&1 | sed 1q`" in
69 *GNU*)
70 MAKE_IS_GNU=yes
71 ;;
72 esac
73 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
74 AC_PROG_MAKE_SET
75
76 gnulib_extra_configure_args=
77 # If large-file support is disabled, make sure gnulib does the same.
78 if test "$enable_largefile" = no; then
79 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
80 fi
81
82 # Configure gnulib. We can't use AC_CONFIG_SUBDIRS as that'd expect
83 # to find the the source subdir to be configured directly under
84 # gdbserver/. We need to build gnulib under some other directory not
85 # "gnulib", to avoid the problem of both GDB and GDBserver wanting to
86 # build it in the same directory, when building in the source dir.
87 ACX_CONFIGURE_DIR(["../gnulib"], ["build-gnulib-gdbserver"],
88 ["$gnulib_extra_configure_args"])
89
90 ACX_CONFIGURE_DIR(["../../libiberty"], ["build-libiberty-gdbserver"])
91
92 AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl
93 proc_service.h sys/procfs.h linux/elf.h dnl
94 fcntl.h signal.h sys/file.h dnl
95 sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl
96 netinet/tcp.h arpa/inet.h)
97 AC_CHECK_FUNCS(getauxval pread pwrite pread64 setns)
98
99 GDB_AC_COMMON
100
101 # Check the return and argument types of ptrace.
102 GDB_AC_PTRACE
103
104 # Check for UST
105 ustlibs=""
106 ustinc=""
107
108 AC_ARG_WITH(ust, [ --with-ust=PATH Specify prefix directory for the installed UST package
109 Equivalent to --with-ust-include=PATH/include
110 plus --with-ust-lib=PATH/lib])
111 AC_ARG_WITH(ust_include, [ --with-ust-include=PATH Specify directory for installed UST include files])
112 AC_ARG_WITH(ust_lib, [ --with-ust-lib=PATH Specify the directory for the installed UST library])
113
114 case $with_ust in
115 no)
116 ustlibs=
117 ustinc=
118 ;;
119 "" | yes)
120 ustlibs=" -lust "
121 ustinc=""
122 ;;
123 *)
124 ustlibs="-L$with_ust/lib -lust"
125 ustinc="-I$with_ust/include "
126 ;;
127 esac
128 if test "x$with_ust_include" != x; then
129 ustinc="-I$with_ust_include "
130 fi
131 if test "x$with_ust_lib" != x; then
132 ustlibs="-L$with_ust_lib -lust"
133 fi
134
135 if test "x$with_ust" != "xno"; then
136 saved_CFLAGS="$CFLAGS"
137 CFLAGS="$CFLAGS $ustinc"
138 AC_MSG_CHECKING([for ust])
139 AC_TRY_COMPILE([
140 #define CONFIG_UST_GDB_INTEGRATION
141 #include <ust/ust.h>
142 ],[],
143 [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_UST, 1, [Define if UST is available])],
144 [AC_MSG_RESULT([no]); ustlibs= ; ustinc= ])
145 CFLAGS="$saved_CFLAGS"
146 fi
147
148 # Flags needed for UST
149 AC_SUBST(ustlibs)
150 AC_SUBST(ustinc)
151
152 AC_ARG_ENABLE(werror,
153 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
154 [case "${enableval}" in
155 yes | y) ERROR_ON_WARNING="yes" ;;
156 no | n) ERROR_ON_WARNING="no" ;;
157 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
158 esac])
159
160 # Enable -Werror by default when using gcc. Turn it off for releases.
161 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" \
162 && test x"$enable_build_with_cxx" != x"yes" \
163 && $development; then
164 ERROR_ON_WARNING=yes
165 fi
166
167 WERROR_CFLAGS=""
168 if test "${ERROR_ON_WARNING}" = yes ; then
169 WERROR_CFLAGS="-Werror"
170 fi
171
172 build_warnings="-Wall -Wpointer-arith \
173 -Wformat-nonliteral -Wno-char-subscripts -Wempty-body"
174
175 # Now add in C and C++ specific options, depending on mode.
176 if test "$enable_build_with_cxx" = "yes"; then
177 build_warnings="$build_warnings -Wno-sign-compare -Wno-write-strings \
178 -Wno-narrowing"
179 else
180 build_warnings="$build_warnings -Wdeclaration-after-statement"
181 fi
182
183 # The set of warnings supported by a C++ compiler is not the same as
184 # of the C compiler.
185 if test "$enable_build_with_cxx" = "yes"; then
186 AC_LANG_PUSH([C++])
187 fi
188
189 WARN_CFLAGS=""
190 if test "x$GCC" = xyes
191 then
192 AC_MSG_CHECKING(compiler warning flags)
193 # Separate out the -Werror flag as some files just cannot be
194 # compiled with it enabled.
195 for w in ${build_warnings}; do
196 case $w in
197 -Werr*) WERROR_CFLAGS=-Werror ;;
198 *)
199 # Check whether GCC accepts it.
200 saved_CFLAGS="$CFLAGS"
201 CFLAGS="$CFLAGS $w"
202 saved_CXXFLAGS="$CXXFLAGS"
203 CXXFLAGS="$CXXFLAGS $w"
204 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
205 CFLAGS="$saved_CFLAGS"
206 CXXFLAGS="$saved_CXXFLAGS"
207 esac
208 done
209 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
210 fi
211 AC_SUBST(WARN_CFLAGS)
212 AC_SUBST(WERROR_CFLAGS)
213
214 if test "$enable_build_with_cxx" = "yes"; then
215 AC_LANG_POP([C++])
216 fi
217
218 dnl dladdr is glibc-specific. It is used by thread-db.c but only for
219 dnl debugging messages. It lives in -ldl which is handled below so we don't
220 dnl use AC_CHECK_LIB (or AC_SEARCH_LIBS) here. Instead we just temporarily
221 dnl augment LIBS.
222 old_LIBS="$LIBS"
223 LIBS="$LIBS -ldl"
224 AC_CHECK_FUNCS(dladdr)
225 LIBS="$old_LIBS"
226
227 libiberty_INIT
228
229 AC_CHECK_DECLS([strerror, perror, vasprintf, vsnprintf])
230
231 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
232
233 AC_CHECK_TYPES(socklen_t, [], [],
234 [#include <sys/types.h>
235 #include <sys/socket.h>
236 ])
237
238 case "${target}" in
239 *-android*)
240 # Starting with NDK version 9, <elf.h> actually includes definitions
241 # of Elf32_auxv_t and Elf64_auxv_t. But sadly, <elf.h> includes
242 # <sys/exec_elf.h> which defines some of the ELF types incorrectly,
243 # leading to conflicts with the defintions from <linux/elf.h>.
244 # This makes it impossible for us to include both <elf.h> and
245 # <linux/elf.h>, which means that, in practice, we do not have
246 # access to Elf32_auxv_t and Elf64_auxv_t on this platform.
247 # Therefore, do not try to auto-detect availability, as it would
248 # get it wrong on this platform.
249 ;;
250 *)
251 AC_CHECK_TYPES([Elf32_auxv_t, Elf64_auxv_t], [], [],
252 #include <elf.h>
253 )
254 esac
255
256 ACX_PKGVERSION([GDB])
257 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
258 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
259 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
260
261 # Check for various supplementary target information (beyond the
262 # triplet) which might affect the choices in configure.srv.
263 case "${target}" in
264 changequote(,)dnl
265 i[34567]86-*-linux*)
266 changequote([,])dnl
267 AC_CACHE_CHECK([if building for x86-64], [gdb_cv_i386_is_x86_64],
268 [save_CPPFLAGS="$CPPFLAGS"
269 CPPFLAGS="$CPPFLAGS $CFLAGS"
270 AC_EGREP_CPP([got it], [
271 #if __x86_64__
272 got it
273 #endif
274 ], [gdb_cv_i386_is_x86_64=yes],
275 [gdb_cv_i386_is_x86_64=no])
276 CPPFLAGS="$save_CPPFLAGS"])
277 ;;
278 m68k-*-*)
279 AC_CACHE_CHECK([if building for Coldfire], [gdb_cv_m68k_is_coldfire],
280 [save_CPPFLAGS="$CPPFLAGS"
281 CPPFLAGS="$CPPFLAGS $CFLAGS"
282 AC_EGREP_CPP([got it], [
283 #ifdef __mcoldfire__
284 got it
285 #endif
286 ], [gdb_cv_m68k_is_coldfire=yes],
287 [gdb_cv_m68k_is_coldfire=no])
288 CPPFLAGS="$save_CPPFLAGS"])
289 ;;
290 esac
291
292 . ${srcdir}/configure.srv
293
294 # Add in the common host objects.
295 . ${srcdir}/../common/common.host
296 srv_host_obs="$common_host_obs"
297
298 if test "${srv_mingwce}" = "yes"; then
299 LIBS="$LIBS -lws2"
300 elif test "${srv_mingw}" = "yes"; then
301 LIBS="$LIBS -lws2_32"
302 elif test "${srv_qnx}" = "yes"; then
303 LIBS="$LIBS -lsocket"
304 elif test "${srv_lynxos}" = "yes"; then
305 LIBS="$LIBS -lnetinet"
306 fi
307
308 if test "${srv_mingw}" = "yes"; then
309 AC_DEFINE(USE_WIN32API, 1,
310 [Define if we should use the Windows API, instead of the
311 POSIX API. On Windows, we use the Windows API when
312 building for MinGW, but the POSIX API when building
313 for Cygwin.])
314 fi
315
316 if test "${srv_linux_usrregs}" = "yes"; then
317 AC_DEFINE(HAVE_LINUX_USRREGS, 1,
318 [Define if the target supports PTRACE_PEEKUSR for register ]
319 [access.])
320 fi
321
322 if test "${srv_linux_regsets}" = "yes"; then
323 AC_DEFINE(HAVE_LINUX_REGSETS, 1,
324 [Define if the target supports register sets.])
325
326 AC_MSG_CHECKING(for PTRACE_GETREGS)
327 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getregs,
328 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
329 [PTRACE_GETREGS;],
330 [gdbsrv_cv_have_ptrace_getregs=yes],
331 [gdbsrv_cv_have_ptrace_getregs=no])])
332 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getregs)
333 if test "${gdbsrv_cv_have_ptrace_getregs}" = "yes"; then
334 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
335 [Define if the target supports PTRACE_GETREGS for register ]
336 [access.])
337 fi
338
339 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
340 AC_CACHE_VAL(gdbsrv_cv_have_ptrace_getfpxregs,
341 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
342 [PTRACE_GETFPXREGS;],
343 [gdbsrv_cv_have_ptrace_getfpxregs=yes],
344 [gdbsrv_cv_have_ptrace_getfpxregs=no])])
345 AC_MSG_RESULT($gdbsrv_cv_have_ptrace_getfpxregs)
346 if test "${gdbsrv_cv_have_ptrace_getfpxregs}" = "yes"; then
347 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
348 [Define if the target supports PTRACE_GETFPXREGS for extended ]
349 [register access.])
350 fi
351 fi
352
353 if test "${srv_linux_btrace}" = "yes"; then
354 AC_DEFINE(HAVE_LINUX_BTRACE, 1,
355 [Define if the target supports branch tracing.])
356 fi
357
358 if test "$ac_cv_header_sys_procfs_h" = yes; then
359 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
360 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
361 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
362 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
363 BFD_HAVE_SYS_PROCFS_TYPE(elf_fpregset_t)
364 fi
365
366 dnl Some systems (e.g., Android) have lwpid_t defined in libthread_db.h.
367 if test "$bfd_cv_have_sys_procfs_type_lwpid_t" != yes; then
368 GDBSERVER_HAVE_THREAD_DB_TYPE(lwpid_t)
369 fi
370
371 dnl Some systems (e.g., Android) have psaddr_t defined in libthread_db.h.
372 if test "$bfd_cv_have_sys_procfs_type_psaddr_t" != yes; then
373 GDBSERVER_HAVE_THREAD_DB_TYPE(psaddr_t)
374 fi
375
376 dnl Check for libdl, but do not add it to LIBS as only gdbserver
377 dnl needs it (and gdbreplay doesn't).
378 old_LIBS="$LIBS"
379 AC_CHECK_LIB(dl, dlopen)
380 LIBS="$old_LIBS"
381
382 srv_thread_depfiles=
383 srv_libs=
384
385 if test "$srv_linux_thread_db" = "yes"; then
386 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
387 srv_libs="-ldl"
388 AC_MSG_CHECKING(for the dynamic export flag)
389 old_LDFLAGS="$LDFLAGS"
390 # Older GNU ld supports --export-dynamic but --dynamic-list may not be
391 # supported there.
392 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
393 LDFLAGS="$LDFLAGS $RDYNAMIC"
394 AC_TRY_LINK([], [],
395 [found="-Wl,--dynamic-list"
396 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'],
397 [RDYNAMIC="-rdynamic"
398 LDFLAGS="$old_LDFLAGS $RDYNAMIC"
399 AC_TRY_LINK([], [],
400 [found="-rdynamic"],
401 [found="no"
402 RDYNAMIC=""])])
403 AC_SUBST(RDYNAMIC)
404 LDFLAGS="$old_LDFLAGS"
405 AC_MSG_RESULT($found)
406 else
407 srv_libs="-lthread_db"
408 fi
409
410 srv_thread_depfiles="thread-db.o proc-service.o"
411 AC_DEFINE(USE_THREAD_DB, 1, [Define if we should use libthread_db.])
412 AC_CACHE_CHECK([for TD_VERSION], gdbsrv_cv_have_td_version,
413 [AC_TRY_COMPILE([#include <thread_db.h>], [TD_VERSION;],
414 [gdbsrv_cv_have_td_version=yes],
415 [gdbsrv_cv_have_td_version=no])])
416 if test $gdbsrv_cv_have_td_version = yes; then
417 AC_DEFINE(HAVE_TD_VERSION, 1, [Define if TD_VERSION is available.])
418 fi
419 fi
420
421 AC_ARG_WITH(libthread-db,
422 AS_HELP_STRING([--with-libthread-db=PATH], [use given libthread_db directly]),
423 [srv_libthread_db_path="${withval}"
424 srv_libs="$srv_libthread_db_path"
425 ])
426
427 if test "$srv_libs" != "" -a "$srv_libs" != "-ldl"; then
428 AC_DEFINE(USE_LIBTHREAD_DB_DIRECTLY, 1, [Define if we should use libthread_db directly.])
429 fi
430
431 if test "$srv_xmlfiles" != ""; then
432 srv_xmlbuiltin="xml-builtin.o"
433 AC_DEFINE(USE_XML, 1, [Define if an XML target description is available.])
434
435 tmp_xmlfiles=$srv_xmlfiles
436 srv_xmlfiles=""
437 for f in $tmp_xmlfiles; do
438 srv_xmlfiles="$srv_xmlfiles \$(XML_DIR)/$f"
439 done
440 fi
441
442 GDBSERVER_DEPFILES="$srv_regobj $srv_tgtobj $srv_hostio_err_objs $srv_thread_depfiles $srv_host_obs"
443 GDBSERVER_LIBS="$srv_libs"
444
445 dnl Check whether the target supports __sync_*_compare_and_swap.
446 AC_CACHE_CHECK([whether the target supports __sync_*_compare_and_swap],
447 gdbsrv_cv_have_sync_builtins, [
448 AC_TRY_LINK([], [int foo, bar; bar = __sync_val_compare_and_swap(&foo, 0, 1);],
449 gdbsrv_cv_have_sync_builtins=yes,
450 gdbsrv_cv_have_sync_builtins=no)])
451 if test $gdbsrv_cv_have_sync_builtins = yes; then
452 AC_DEFINE(HAVE_SYNC_BUILTINS, 1,
453 [Define to 1 if the target supports __sync_*_compare_and_swap])
454 fi
455
456 dnl Check for -fvisibility=hidden support in the compiler.
457 saved_cflags="$CFLAGS"
458 CFLAGS="$CFLAGS -fvisibility=hidden"
459 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
460 [gdbsrv_cv_have_visibility_hidden=yes],
461 [gdbsrv_cv_have_visibility_hidden=no])
462 CFLAGS="$saved_cflags"
463
464 dnl Check if we can disable the virtual address space randomization.
465 dnl The functionality of setarch -R.
466 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
467 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
468 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
469 # define ADDR_NO_RANDOMIZE 0x0040000
470 # endif
471 /* Test the flag could be set and stays set. */
472 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
473 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
474 return 1])])
475 AC_RUN_IFELSE([PERSONALITY_TEST],
476 [gdbsrv_cv_have_personality=true],
477 [gdbsrv_cv_have_personality=false],
478 [AC_LINK_IFELSE([PERSONALITY_TEST],
479 [gdbsrv_cv_have_personality=true],
480 [gdbsrv_cv_have_personality=false])])
481 if $gdbsrv_cv_have_personality
482 then
483 AC_DEFINE([HAVE_PERSONALITY], 1,
484 [Define if you support the personality syscall.])
485 fi
486
487
488 IPA_DEPFILES=""
489 extra_libraries=""
490
491 # check whether to enable the inprocess agent
492 if test "$ipa_obj" != "" \
493 -a "$gdbsrv_cv_have_sync_builtins" = yes \
494 -a "$gdbsrv_cv_have_visibility_hidden" = yes; then
495 have_ipa=true
496 else
497 have_ipa=false
498 fi
499
500 AC_ARG_ENABLE(inprocess-agent,
501 AS_HELP_STRING([--enable-inprocess-agent], [inprocess agent]),
502 [case "$enableval" in
503 yes) want_ipa=true ;;
504 no) want_ipa=false ;;
505 *) AC_MSG_ERROR([bad value $enableval for inprocess-agent]) ;;
506 esac],
507 [want_ipa=$have_ipa])
508
509 if $want_ipa ; then
510 if $have_ipa ; then
511 IPA_DEPFILES="$ipa_obj"
512 extra_libraries="$extra_libraries libinproctrace.so"
513 else
514 AC_MSG_ERROR([inprocess agent not supported for this target])
515 fi
516 fi
517
518 AC_SUBST(GDBSERVER_DEPFILES)
519 AC_SUBST(GDBSERVER_LIBS)
520 AC_SUBST(srv_xmlbuiltin)
521 AC_SUBST(srv_xmlfiles)
522 AC_SUBST(IPA_DEPFILES)
523 AC_SUBST(extra_libraries)
524
525 GNULIB=build-gnulib-gdbserver/import
526
527 GNULIB_STDINT_H=
528 if test x"$STDINT_H" != x; then
529 GNULIB_STDINT_H=$GNULIB/$STDINT_H
530 fi
531 AC_SUBST(GNULIB_STDINT_H)
532
533 AC_OUTPUT(Makefile,
534 [case x$CONFIG_HEADERS in
535 xconfig.h:config.in)
536 echo > stamp-h ;;
537 esac
538 ])
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