File: configure.ac

package info (click to toggle)
libunwind 1.1-4.1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 7,556 kB
  • ctags: 5,699
  • sloc: ansic: 31,521; sh: 18,062; asm: 1,848; makefile: 866; cpp: 118
file content (346 lines) | stat: -rw-r--r-- 10,927 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
define(pkg_major, 1)
define(pkg_minor, 1)
define(pkg_extra, )
define(pkg_maintainer, libunwind-devel@nongnu.org)
define(mkvers, $1.$2$3)
dnl Process this file with autoconf to produce a configure script.
AC_INIT([libunwind],[mkvers(pkg_major, pkg_minor, pkg_extra)],[pkg_maintainer])
AC_CONFIG_SRCDIR(src/mi/backtrace.c)
AC_CONFIG_AUX_DIR(config)
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([1.6 subdir-objects])
AM_MAINTAINER_MODE
AC_CONFIG_HEADERS([include/config.h])

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CXX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
LT_INIT
AM_PROG_AS
AM_PROG_CC_C_O

case ${host} in
  *-pc-linux-gnu)
    AC_MSG_RESULT([Fixing libtool for -rpath problems.])
    sed < libtool > libtool-2 \
    's/^hardcode_libdir_flag_spec.*$'/'hardcode_libdir_flag_spec=" -D__LIBTOOL_IS_A_FOOL__ "/'
    mv libtool-2 libtool
    chmod 755 libtool
  ;;
esac

dnl Checks for libraries.
AC_CHECK_LIB(uca, __uc_get_grs)
OLD_LIBS=${LIBS}
AC_SEARCH_LIBS(dlopen, dl)
LIBS=${OLD_LIBS}
case "$ac_cv_search_dlopen" in
  -l*) DLLIB=$ac_cv_search_dlopen;;
  *) DLLIB="";;
esac

CHECK_ATOMIC_OPS

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(asm/ptrace_offsets.h endian.h sys/endian.h execinfo.h \
		ia64intrin.h sys/uc_access.h unistd.h signal.h sys/types.h \
		sys/procfs.h sys/ptrace.h byteswap.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_CHECK_SIZEOF(off_t)

CPPFLAGS="${CPPFLAGS} -D_GNU_SOURCE"

AC_CHECK_MEMBERS([struct dl_phdr_info.dlpi_subs],,,[#include <link.h>])
AC_CHECK_TYPES([struct elf_prstatus, struct prstatus], [], [],
[$ac_includes_default
#if HAVE_SYS_PROCFS_H
# include <sys/procfs.h>
#endif
])

AC_CHECK_DECLS([PTRACE_POKEUSER, PTRACE_POKEDATA,
PTRACE_TRACEME, PTRACE_CONT, PTRACE_SINGLESTEP,
PTRACE_SYSCALL, PT_IO, PT_GETREGS,
PT_GETFPREGS, PT_CONTINUE, PT_TRACE_ME,
PT_STEP, PT_SYSCALL], [], [],
[$ac_includes_default
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <sys/ptrace.h>
])

dnl Checks for library functions.
AC_CHECK_FUNCS(dl_iterate_phdr dl_phdr_removals_counter dlmodinfo getunwind \
		ttrace mincore)

AC_MSG_CHECKING([if building with AltiVec])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef __ALTIVEC__
# error choke
#endif
]])], [use_altivec=yes],[use_altivec=no])
AM_CONDITIONAL(USE_ALTIVEC, [test x$use_altivec = xyes])
AC_MSG_RESULT([$use_altivec])

AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef __powerpc64__
# error choke
#endif
]])], [ppc_bits=64], [ppc_bits=32])

AC_DEFUN([SET_ARCH],[
    AS_CASE([$1],
        [arm*],[$2=arm],
        [i?86],[$2=x86],
        [hppa*],[$2=hppa],
        [mips*],[$2=mips],
        [powerpc*],[$2=ppc$ppc_bits],
        [sh*],[$2=sh],
        [amd64],[$2=x86_64],
        [$2=$1])
]) dnl SET_ARCH

SET_ARCH([$build_cpu],[build_arch])
SET_ARCH([$host_cpu],[host_arch])
SET_ARCH([$target_cpu],[target_arch])

AC_ARG_ENABLE(coredump,
	AS_HELP_STRING([--enable-coredump],[building libunwind-coredump library]),,
        [AS_CASE([$host_arch], [aarch64*|arm*|mips*|sh*|x86*], [enable_coredump=yes], [enable_coredump=no])]
)

AC_MSG_CHECKING([if we should build libunwind-coredump])
AC_MSG_RESULT([$enable_coredump])

AC_MSG_CHECKING([for build architecture])
AC_MSG_RESULT([$build_arch])
AC_MSG_CHECKING([for host architecture])
AC_MSG_RESULT([$host_arch])
AC_MSG_CHECKING([for target architecture])
AC_MSG_RESULT([$target_arch])
AC_MSG_CHECKING([for target operating system])
AC_MSG_RESULT([$target_os])

AM_CONDITIONAL(BUILD_COREDUMP, test x$enable_coredump = xyes)
AM_CONDITIONAL(REMOTE_ONLY, test x$target_arch != x$host_arch)
AM_CONDITIONAL(ARCH_AARCH64, test x$target_arch = xaarch64)
AM_CONDITIONAL(ARCH_ARM, test x$target_arch = xarm)
AM_CONDITIONAL(ARCH_IA64, test x$target_arch = xia64)
AM_CONDITIONAL(ARCH_HPPA, test x$target_arch = xhppa)
AM_CONDITIONAL(ARCH_MIPS, test x$target_arch = xmips)
AM_CONDITIONAL(ARCH_X86, test x$target_arch = xx86)
AM_CONDITIONAL(ARCH_X86_64, test x$target_arch = xx86_64)
AM_CONDITIONAL(ARCH_PPC32, test x$target_arch = xppc32)
AM_CONDITIONAL(ARCH_PPC64, test x$target_arch = xppc64)
AM_CONDITIONAL(ARCH_SH, test x$target_arch = xsh)
AM_CONDITIONAL(OS_LINUX, expr x$target_os : xlinux >/dev/null)
AM_CONDITIONAL(OS_HPUX, expr x$target_os : xhpux >/dev/null)
AM_CONDITIONAL(OS_FREEBSD, expr x$target_os : xfreebsd >/dev/null)

AC_MSG_CHECKING([for ELF helper width])
case "${target_arch}" in
(arm|hppa|ppc32|x86|sh) use_elf32=yes; AC_MSG_RESULT([32]);;
(aarch64|ia64|ppc64|x86_64)    use_elf64=yes; AC_MSG_RESULT([64]);;
(mips)                 use_elfxx=yes; AC_MSG_RESULT([xx]);;
*)                     AC_MSG_ERROR([Unknown ELF target: ${target_arch}])
esac
AM_CONDITIONAL(USE_ELF32, [test x$use_elf32 = xyes])
AM_CONDITIONAL(USE_ELF64, [test x$use_elf64 = xyes])
AM_CONDITIONAL(USE_ELFXX, [test x$use_elfxx = xyes])

AC_MSG_CHECKING([whether to include DWARF support])
if test x$target_arch != xia64; then
  use_dwarf=yes
else
  use_dwarf=no
fi
AM_CONDITIONAL(USE_DWARF, [test x$use_dwarf = xyes])
AC_MSG_RESULT([$use_dwarf])

AC_MSG_CHECKING([whether to restrict build to remote support])
if test x$target_arch != x$host_arch; then
  CPPFLAGS="${CPPFLAGS} -DUNW_REMOTE_ONLY"
  remote_only=yes
else
  remote_only=no
fi
AC_MSG_RESULT([$remote_only])

AC_MSG_CHECKING([whether to enable debug support])
AC_ARG_ENABLE(debug,
AS_HELP_STRING([--enable-debug],[turn on debug support (slows down execution)]))
if test x$enable_debug = xyes; then
  CPPFLAGS="${CPPFLAGS} -DDEBUG"
else
  CPPFLAGS="${CPPFLAGS} -DNDEBUG"
fi
AC_MSG_RESULT([$enable_debug])

AC_MSG_CHECKING([whether to enable C++ exception support])
AC_ARG_ENABLE(cxx_exceptions,
AS_HELP_STRING([--enable-cxx-exceptions],[use libunwind to handle C++ exceptions]),,
[
# C++ exception handling doesn't work too well on x86
case $target_arch in
  x86*) enable_cxx_exceptions=no;;
  aarch64*) enable_cxx_exceptions=no;;
  arm*) enable_cxx_exceptions=no;;
  mips*) enable_cxx_exceptions=no;;
  *) enable_cxx_exceptions=yes;;
esac
])

AM_CONDITIONAL([SUPPORT_CXX_EXCEPTIONS], [test x$enable_cxx_exceptions = xyes])
AC_MSG_RESULT([$enable_cxx_exceptions])

AC_MSG_CHECKING([whether to load .debug_frame sections])
AC_ARG_ENABLE(debug_frame,
AS_HELP_STRING([--enable-debug-frame],[Load the ".debug_frame" section if available]),, [
case "${target_arch}" in
  (arm) enable_debug_frame=yes;;
  (*)   enable_debug_frame=no;;
esac])
if test x$enable_debug_frame = xyes; then
  AC_DEFINE([CONFIG_DEBUG_FRAME], [], [Enable Debug Frame])
fi
AC_MSG_RESULT([$enable_debug_frame])

AC_MSG_CHECKING([whether to block signals during mutex ops])
AC_ARG_ENABLE(block_signals,
AS_HELP_STRING([--enable-block-signals],[Block signals before performing mutex operations]),,
[enable_block_signals=yes])
if test x$enable_block_signals = xyes; then
  AC_DEFINE([CONFIG_BLOCK_SIGNALS], [], [Block signals before mutex operations])
fi
AC_MSG_RESULT([$enable_block_signals])

AC_MSG_CHECKING([whether to validate memory addresses before use])
AC_ARG_ENABLE(conservative_checks,
AS_HELP_STRING([--enable-conservative-checks],[Validate all memory addresses before use]),,
[enable_conservative_checks=yes])
if test x$enable_conservative_checks = xyes; then
  AC_DEFINE(CONSERVATIVE_CHECKS, 1,
	[Define to 1 if you want every memory access validated])
fi
AC_MSG_RESULT([$enable_conservative_checks])

AC_MSG_CHECKING([whether to enable msabi support])
AC_ARG_ENABLE(msabi_support,
AS_HELP_STRING([--enable-msabi-support],[Enables support for Microsoft ABI extensions]))
if test x$enable_msabi_support = xyes; then
  AC_DEFINE([CONFIG_MSABI_SUPPORT], [], [Support for Microsoft ABI extensions])
fi
AC_MSG_RESULT([$enable_msabi_support])

LIBLZMA=
AC_MSG_CHECKING([whether to support LZMA-compressed symbol tables])
AC_ARG_ENABLE(minidebuginfo,
AS_HELP_STRING([--enable-minidebuginfo], [Enables support for LZMA-compressed symbol tables]),, [enable_minidebuginfo=auto])
AC_MSG_RESULT([$enable_minidebuginfo])
if test x$enable_minidebuginfo != xno; then
   AC_CHECK_LIB([lzma], [lzma_mf_is_supported],
   [LIBLZMA=-llzma
    AC_DEFINE([HAVE_LZMA], [1], [Define if you have liblzma])
    enable_minidebuginfo=yes],
   [if test x$enable_minidebuginfo = xyes; then
      AC_MSG_FAILURE([liblzma not found])
    fi])
fi
AC_SUBST([LIBLZMA])
AM_CONDITIONAL(HAVE_LZMA, test x$enable_minidebuginfo = xyes)

LIBUNWIND___THREAD

AC_MSG_CHECKING([for Intel compiler])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[#ifndef __INTEL_COMPILER
#error choke me
#endif]])],[intel_compiler=yes],[intel_compiler=no])

if test x$GCC = xyes -a x$intel_compiler != xyes; then
  CFLAGS="${CFLAGS} -fexceptions -Wall -Wsign-compare"
  LIBCRTS="-lgcc"
fi
AC_MSG_RESULT([$intel_compiler])

if test x$intel_compiler = xyes; then
  AC_MSG_CHECKING([if linker supports -static-libcxa])
  save_LDFLAGS="$LDFLAGS"
  LDFLAGS="$LDFLAGS -static-libcxa"
  AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[have_static_libcxa=yes],[have_static_libcxa=no])
  LDFLAGS="$save_LDFLAGS"
  if test "x$have_static_libcxa" = xyes; then
    LDFLAGS_STATIC_LIBCXA="-XCClinker -static-libcxa"
  fi
  AC_MSG_RESULT([$have_static_libcxa])
fi

AC_MSG_CHECKING([for __builtin___clear_cache])
AC_LINK_IFELSE(
  [AC_LANG_PROGRAM([[]], [[__builtin___clear_cache(0, 0)]])],
  [have__builtin___clear_cache=yes],
  [have__builtin___clear_cache=no])
if test x$have__builtin___clear_cache = xyes; then
  AC_DEFINE([HAVE__BUILTIN___CLEAR_CACHE], [1],
            [Defined if __builtin___clear_cache() is available])
fi
AC_MSG_RESULT([$have__builtin___clear_cache])

AC_MSG_CHECKING([for __sync atomics])
AC_LINK_IFELSE(
  [AC_LANG_PROGRAM([[]], [[
    __sync_bool_compare_and_swap((int *)0, 0, 1);
    __sync_fetch_and_add((int *)0, 1);
    ]])],
  [have_sync_atomics=yes],
  [have_sync_atomics=no])
if test x$have_sync_atomics = xyes; then
  AC_DEFINE([HAVE_SYNC_ATOMICS], [1],
            [Defined if __sync atomics are available])
fi
AC_MSG_RESULT([$have_sync_atomics])

CCASFLAGS="${CCASFLAGS} ${CPPFLAGS}"

arch="$target_arch"
ARCH=`echo $target_arch | tr [a-z] [A-Z]`

dnl create shell variables from the M4 macros:
PKG_MAJOR=pkg_major
PKG_MINOR=pkg_minor
PKG_EXTRA=pkg_extra
PKG_MAINTAINER=pkg_maintainer

old_LIBS="$LIBS"
LIBS=""
AC_SEARCH_LIBS(backtrace, execinfo)
LIBS="$old_LIBS"

AC_SUBST(build_arch)
AC_SUBST(target_os)
AC_SUBST(arch)
AC_SUBST(ARCH)
AC_SUBST(LDFLAGS_STATIC_LIBCXA)
AC_SUBST(LIBCRTS)
AC_SUBST(PKG_MAJOR)
AC_SUBST(PKG_MINOR)
AC_SUBST(PKG_EXTRA)
AC_SUBST(PKG_MAINTAINER)
AC_SUBST(enable_cxx_exceptions)
AC_SUBST(enable_debug_frame)
AC_SUBST(DLLIB)

AC_CONFIG_FILES(Makefile src/Makefile tests/Makefile tests/check-namespace.sh
		doc/Makefile doc/common.tex include/libunwind-common.h
                include/libunwind.h include/tdep/libunwind_i.h)
AC_CONFIG_FILES(src/unwind/libunwind.pc src/coredump/libunwind-coredump.pc
                src/ptrace/libunwind-ptrace.pc src/setjmp/libunwind-setjmp.pc
                src/libunwind-generic.pc)
AC_OUTPUT