X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdbsupport%2Fconfigure;h=51caeeb180f175f80e47c0d5666dc5d545d89f59;hb=6d520e36de0229eefe2f1671438cc8333a90b5e6;hp=2f44d0328bce2cd6820ced007db34b1fab573794;hpb=01027315f54048dbaf03ac37455c2528c72a6d9b;p=deliverable%2Fbinutils-gdb.git diff --git a/gdbsupport/configure b/gdbsupport/configure index 2f44d0328b..51caeeb180 100755 --- a/gdbsupport/configure +++ b/gdbsupport/configure @@ -619,12 +619,18 @@ ac_includes_default="\ # include #endif" +ac_header_list= ac_subst_vars='am__EXEEXT_FALSE am__EXEEXT_TRUE LTLIBOBJS LIBOBJS +WERROR_CFLAGS +WARN_CFLAGS SELFTEST_FALSE SELFTEST_TRUE +LTLIBIPT +LIBIPT +HAVE_LIBIPT PTHREAD_CFLAGS PTHREAD_LIBS PTHREAD_CC @@ -760,7 +766,15 @@ enable_silent_rules enable_dependency_tracking enable_plugins enable_largefile +with_intel_pt +with_gnu_ld +enable_rpath +with_libipt_prefix +with_libipt_type enable_unit_tests +enable_werror +enable_build_warnings +enable_gdb_build_warnings ' ac_precious_vars='build_alias host_alias @@ -1404,8 +1418,23 @@ Optional Features: speeds up one-time build --enable-plugins Enable support for plugins --disable-largefile omit support for large files + --disable-rpath do not hardcode runtime library paths --enable-unit-tests Enable the inclusion of unit tests when compiling GDB + --enable-werror treat compile warnings as errors + --enable-build-warnings enable build-time compiler warnings if gcc is used + --enable-gdb-build-warnings + enable GDB specific build-time compiler warnings if + gcc is used + +Optional Packages: + --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] + --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) + --with-intel-pt include Intel Processor Trace support (auto/yes/no) + --with-gnu-ld assume the C compiler uses GNU ld default=no + --with-libipt-prefix[=DIR] search for libipt in DIR/include and DIR/lib + --without-libipt-prefix don't search for libipt in includedir and libdir + --with-libipt-type=TYPE type of library to search for (auto/static/shared) Some influential environment variables: CC C compiler command @@ -2168,6 +2197,63 @@ $as_echo "$ac_res" >&6; } } # ac_fn_c_check_func +# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES +# ---------------------------------------------------- +# Tries to find if the field MEMBER exists in type AGGR, after including +# INCLUDES, setting cache variable VAR accordingly. +ac_fn_c_check_member () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5 +$as_echo_n "checking for $2.$3... " >&6; } +if eval \${$4+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$5 +int +main () +{ +static $2 ac_aggr; +if (ac_aggr.$3) +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$4=yes" +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$5 +int +main () +{ +static $2 ac_aggr; +if (sizeof ac_aggr.$3) +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + eval "$4=yes" +else + eval "$4=no" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +eval ac_res=\$$4 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_member + # ac_fn_cxx_try_link LINENO # ------------------------- # Try to link conftest.$ac_ext, and return whether this succeeded. @@ -2564,6 +2650,9 @@ $as_echo "$as_me: creating cache $cache_file" >&6;} >$cache_file fi +as_fn_append ac_header_list " stdlib.h" +as_fn_append ac_header_list " unistd.h" +as_fn_append ac_header_list " sys/param.h" # Check that the precious variables saved in the cache have kept the same # value. ac_cache_corrupted=false @@ -2636,7 +2725,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu -ac_config_headers="$ac_config_headers support-config.h:config.in" +ac_config_headers="$ac_config_headers config.h:config.in" ac_aux_dir= for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do @@ -7706,6 +7795,40 @@ _ACEOF fi + + + + for ac_header in $ac_header_list +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + + + + +ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default" +if test "x$ac_cv_type_pid_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define pid_t int +_ACEOF + +fi + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5 $as_echo_n "checking for a sed that does not truncate output... " >&6; } if ${ac_cv_path_SED+:} false; then : @@ -7776,6 +7899,167 @@ $as_echo "$ac_cv_path_SED" >&6; } rm -f conftest.sed + if test "X$prefix" = "XNONE"; then + acl_final_prefix="$ac_default_prefix" + else + acl_final_prefix="$prefix" + fi + if test "X$exec_prefix" = "XNONE"; then + acl_final_exec_prefix='${prefix}' + else + acl_final_exec_prefix="$exec_prefix" + fi + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" + prefix="$acl_save_prefix" + + +# Check whether --with-gnu-ld was given. +if test "${with_gnu_ld+set}" = set; then : + withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes +else + with_gnu_ld=no +fi + +# Prepare PATH_SEPARATOR. +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by GCC" >&5 +$as_echo_n "checking for ld used by GCC... " >&6; } + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [\\/]* | [A-Za-z]:[\\/]*) + re_direlt='/[^/][^/]*/\.\./' + # Canonicalize the path of ld + ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'` + while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do + ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac +elif test "$with_gnu_ld" = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5 +$as_echo_n "checking for GNU ld... " >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5 +$as_echo_n "checking for non-GNU ld... " >&6; } +fi +if ${acl_cv_path_LD+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -z "$LD"; then + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}" + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + acl_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some GNU ld's only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + if "$acl_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then + test "$with_gnu_ld" != no && break + else + test "$with_gnu_ld" != yes && break + fi + fi + done + IFS="$ac_save_ifs" +else + acl_cv_path_LD="$LD" # Let the user override the test with a path. +fi +fi + +LD="$acl_cv_path_LD" +if test -n "$LD"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5 +$as_echo "$LD" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi +test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5 +$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; } +if ${acl_cv_prog_gnu_ld+:} false; then : + $as_echo_n "(cached) " >&6 +else + # I'd rather use --version here, but apparently some GNU ld's only accept -v. +if $LD -v 2>&1 &5; then + acl_cv_prog_gnu_ld=yes +else + acl_cv_prog_gnu_ld=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_prog_gnu_ld" >&5 +$as_echo "$acl_cv_prog_gnu_ld" >&6; } +with_gnu_ld=$acl_cv_prog_gnu_ld + + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shared library run path origin" >&5 +$as_echo_n "checking for shared library run path origin... " >&6; } +if ${acl_cv_rpath+:} false; then : + $as_echo_n "(cached) " >&6 +else + + CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \ + ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh + . ./conftest.sh + rm -f ./conftest.sh + acl_cv_rpath=done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $acl_cv_rpath" >&5 +$as_echo "$acl_cv_rpath" >&6; } + wl="$acl_cv_wl" + libext="$acl_cv_libext" + shlibext="$acl_cv_shlibext" + hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" + hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" + hardcode_direct="$acl_cv_hardcode_direct" + hardcode_minus_L="$acl_cv_hardcode_minus_L" + # Check whether --enable-rpath was given. +if test "${enable_rpath+set}" = set; then : + enableval=$enable_rpath; : +else + enable_rpath=yes +fi + + + + # Set the 'development' global. + . $srcdir/../bfd/development.sh + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 $as_echo_n "checking for ANSI C header files... " >&6; } if ${ac_cv_header_stdc+:} false; then : @@ -8120,7 +8404,7 @@ $as_echo "#define HAVE_LANGINFO_CODESET 1" >>confdefs.h fi - for ac_header in linux/perf_event.h locale.h memory.h signal.h sys/resource.h sys/socket.h sys/un.h sys/wait.h thread_db.h wait.h termios.h dlfcn.h + for ac_header in linux/perf_event.h locale.h memory.h signal.h sys/resource.h sys/socket.h sys/un.h sys/wait.h thread_db.h wait.h termios.h dlfcn.h linux/elf.h sys/procfs.h proc_service.h poll.h sys/poll.h sys/select.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" @@ -8134,326 +8418,875 @@ fi done - for ac_func in fdwalk getrlimit pipe pipe2 socketpair sigaction \ - sigprocmask + +for ac_func in getpagesize do : - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + ac_fn_c_check_func "$LINENO" "getpagesize" "ac_cv_func_getpagesize" +if test "x$ac_cv_func_getpagesize" = xyes; then : cat >>confdefs.h <<_ACEOF -#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +#define HAVE_GETPAGESIZE 1 _ACEOF fi done - - ac_fn_c_check_decl "$LINENO" "strstr" "ac_cv_have_decl_strstr" "$ac_includes_default" -if test "x$ac_cv_have_decl_strstr" = xyes; then : - ac_have_decl=1 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working mmap" >&5 +$as_echo_n "checking for working mmap... " >&6; } +if ${ac_cv_func_mmap_fixed_mapped+:} false; then : + $as_echo_n "(cached) " >&6 else - ac_have_decl=0 -fi + if test "$cross_compiling" = yes; then : + ac_cv_func_mmap_fixed_mapped=no +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default +/* malloc might have been renamed as rpl_malloc. */ +#undef malloc + +/* Thanks to Mike Haertel and Jim Avera for this test. + Here is a matrix of mmap possibilities: + mmap private not fixed + mmap private fixed at somewhere currently unmapped + mmap private fixed at somewhere already mapped + mmap shared not fixed + mmap shared fixed at somewhere currently unmapped + mmap shared fixed at somewhere already mapped + For private mappings, we should verify that changes cannot be read() + back from the file, nor mmap's back from the file at a different + address. (There have been systems where private was not correctly + implemented like the infamous i386 svr4.0, and systems where the + VM page cache was not coherent with the file system buffer cache + like early versions of FreeBSD and possibly contemporary NetBSD.) + For shared mappings, we should conversely verify that changes get + propagated back to all the places they're supposed to be. + + Grep wants private fixed already mapped. + The main things grep needs to know about mmap are: + * does it exist and is it safe to write into the mmap'd area + * how to use it (BSD variants) */ + +#include +#include + +#if !defined STDC_HEADERS && !defined HAVE_STDLIB_H +char *malloc (); +#endif -cat >>confdefs.h <<_ACEOF -#define HAVE_DECL_STRSTR $ac_have_decl -_ACEOF +/* This mess was copied from the GNU getpagesize.h. */ +#ifndef HAVE_GETPAGESIZE +# ifdef _SC_PAGESIZE +# define getpagesize() sysconf(_SC_PAGESIZE) +# else /* no _SC_PAGESIZE */ +# ifdef HAVE_SYS_PARAM_H +# include +# ifdef EXEC_PAGESIZE +# define getpagesize() EXEC_PAGESIZE +# else /* no EXEC_PAGESIZE */ +# ifdef NBPG +# define getpagesize() NBPG * CLSIZE +# ifndef CLSIZE +# define CLSIZE 1 +# endif /* no CLSIZE */ +# else /* no NBPG */ +# ifdef NBPC +# define getpagesize() NBPC +# else /* no NBPC */ +# ifdef PAGESIZE +# define getpagesize() PAGESIZE +# endif /* PAGESIZE */ +# endif /* no NBPC */ +# endif /* no NBPG */ +# endif /* no EXEC_PAGESIZE */ +# else /* no HAVE_SYS_PARAM_H */ +# define getpagesize() 8192 /* punt totally */ +# endif /* no HAVE_SYS_PARAM_H */ +# endif /* no _SC_PAGESIZE */ + +#endif /* no HAVE_GETPAGESIZE */ +int +main () +{ + char *data, *data2, *data3; + const char *cdata2; + int i, pagesize; + int fd, fd2; - # Check for std::thread. This does not work on some platforms, like - # mingw and DJGPP. - ac_ext=cpp -ac_cpp='$CXXCPP $CPPFLAGS' -ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' -ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' -ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + pagesize = getpagesize (); + /* First, make a file with some known garbage in it. */ + data = (char *) malloc (pagesize); + if (!data) + return 1; + for (i = 0; i < pagesize; ++i) + *(data + i) = rand (); + umask (0); + fd = creat ("conftest.mmap", 0600); + if (fd < 0) + return 2; + if (write (fd, data, pagesize) != pagesize) + return 3; + close (fd); + + /* Next, check that the tail of a page is zero-filled. File must have + non-zero length, otherwise we risk SIGBUS for entire page. */ + fd2 = open ("conftest.txt", O_RDWR | O_CREAT | O_TRUNC, 0600); + if (fd2 < 0) + return 4; + cdata2 = ""; + if (write (fd2, cdata2, 1) != 1) + return 5; + data2 = (char *) mmap (0, pagesize, PROT_READ | PROT_WRITE, MAP_SHARED, fd2, 0L); + if (data2 == MAP_FAILED) + return 6; + for (i = 0; i < pagesize; ++i) + if (*(data2 + i)) + return 7; + close (fd2); + if (munmap (data2, pagesize)) + return 8; + + /* Next, try to mmap the file at a fixed address which already has + something else allocated at it. If we can, also make sure that + we see the same garbage. */ + fd = open ("conftest.mmap", O_RDWR); + if (fd < 0) + return 9; + if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_FIXED, fd, 0L)) + return 10; + for (i = 0; i < pagesize; ++i) + if (*(data + i) != *(data2 + i)) + return 11; + + /* Finally, make sure that changes to the mapped area do not + percolate back to the file as seen by read(). (This is a bug on + some variants of i386 svr4.0.) */ + for (i = 0; i < pagesize; ++i) + *(data2 + i) = *(data2 + i) + 1; + data3 = (char *) malloc (pagesize); + if (!data3) + return 12; + if (read (fd, data3, pagesize) != pagesize) + return 13; + for (i = 0; i < pagesize; ++i) + if (*(data + i) != *(data3 + i)) + return 14; + close (fd); + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_func_mmap_fixed_mapped=yes +else + ac_cv_func_mmap_fixed_mapped=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_mmap_fixed_mapped" >&5 +$as_echo "$ac_cv_func_mmap_fixed_mapped" >&6; } +if test $ac_cv_func_mmap_fixed_mapped = yes; then +$as_echo "#define HAVE_MMAP 1" >>confdefs.h +fi +rm -f conftest.mmap conftest.txt -ac_ext=c -ac_cpp='$CPP $CPPFLAGS' -ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' -ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' -ac_compiler_gnu=$ac_cv_c_compiler_gnu + for ac_header in vfork.h +do : + ac_fn_c_check_header_mongrel "$LINENO" "vfork.h" "ac_cv_header_vfork_h" "$ac_includes_default" +if test "x$ac_cv_header_vfork_h" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_VFORK_H 1 +_ACEOF -ax_pthread_ok=no +fi -# We used to check for pthread.h first, but this fails if pthread.h -# requires special compiler flags (e.g. on Tru64 or Sequent). -# It gets checked for in the link test anyway. +done + +for ac_func in fork vfork +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF -# First of all, check if the user has set any of the PTHREAD_LIBS, -# etcetera environment variables, and if threads linking works using -# them: -if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then - ax_pthread_save_CC="$CC" - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - if test "x$PTHREAD_CC" != "x"; then : - CC="$PTHREAD_CC" fi - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5 -$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; } - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ +done -/* Override any GCC internal prototype to avoid an error. - Use char because int might match the return type of a GCC - builtin and then its argument prototype would still apply. */ -#ifdef __cplusplus -extern "C" -#endif -char pthread_join (); +if test "x$ac_cv_func_fork" = xyes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working fork" >&5 +$as_echo_n "checking for working fork... " >&6; } +if ${ac_cv_func_fork_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + ac_cv_func_fork_works=cross +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$ac_includes_default int main () { -return pthread_join (); + + /* By Ruediger Kuhlmann. */ + return fork () < 0; + ; return 0; } _ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ax_pthread_ok=yes +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_func_fork_works=yes +else + ac_cv_func_fork_works=no fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 -$as_echo "$ax_pthread_ok" >&6; } - if test "x$ax_pthread_ok" = "xno"; then - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" - fi - CC="$ax_pthread_save_CC" - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext fi -# We must check for the threads library under a number of different -# names; the ordering is very important because some systems -# (e.g. DEC) have both -lpthread and -lpthreads, where one of the -# libraries is broken (non-POSIX). - -# Create a list of thread flags to try. Items starting with a "-" are -# C compiler flags, and other items are library names, except for "none" -# which indicates that we try without any flags at all, and "pthread-config" -# which is a program returning the flags for the Pth emulation library. - -ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" - -# The ordering *is* (sometimes) important. Some notes on the -# individual items follow: +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_fork_works" >&5 +$as_echo "$ac_cv_func_fork_works" >&6; } -# pthreads: AIX (must check this before -lpthread) -# none: in case threads are in libc; should be tried before -Kthread and -# other compiler flags to prevent continual compiler warnings -# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) -# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 -# (Note: HP C rejects this with "bad form for `-t' option") -# -pthreads: Solaris/gcc (Note: HP C also rejects) -# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it -# doesn't hurt to check since this sometimes defines pthreads and -# -D_REENTRANT too), HP C (must be checked before -lpthread, which -# is present but should not be used directly; and before -mthreads, -# because the compiler interprets this as "-mt" + "-hreads") -# -mthreads: Mingw32/gcc, Lynx/gcc -# pthread: Linux, etcetera -# --thread-safe: KAI C++ -# pthread-config: use pthread-config program (for GNU Pth library) +else + ac_cv_func_fork_works=$ac_cv_func_fork +fi +if test "x$ac_cv_func_fork_works" = xcross; then + case $host in + *-*-amigaos* | *-*-msdosdjgpp*) + # Override, as these systems have only a dummy fork() stub + ac_cv_func_fork_works=no + ;; + *) + ac_cv_func_fork_works=yes + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5 +$as_echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;} +fi +ac_cv_func_vfork_works=$ac_cv_func_vfork +if test "x$ac_cv_func_vfork" = xyes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working vfork" >&5 +$as_echo_n "checking for working vfork... " >&6; } +if ${ac_cv_func_vfork_works+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test "$cross_compiling" = yes; then : + ac_cv_func_vfork_works=cross +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Thanks to Paul Eggert for this test. */ +$ac_includes_default +#include +#ifdef HAVE_VFORK_H +# include +#endif +/* On some sparc systems, changes by the child to local and incoming + argument registers are propagated back to the parent. The compiler + is told about this with #include , but some compilers + (e.g. gcc -O) don't grok . Test for this by using a + static variable whose address is put into a register that is + clobbered by the vfork. */ +static void +#ifdef __cplusplus +sparc_address_test (int arg) +# else +sparc_address_test (arg) int arg; +#endif +{ + static pid_t child; + if (!child) { + child = vfork (); + if (child < 0) { + perror ("vfork"); + _exit(2); + } + if (!child) { + arg = getpid(); + write(-1, "", 0); + _exit (arg); + } + } +} -case $host_os in +int +main () +{ + pid_t parent = getpid (); + pid_t child; + + sparc_address_test (0); + + child = vfork (); + + if (child == 0) { + /* Here is another test for sparc vfork register problems. This + test uses lots of local variables, at least as many local + variables as main has allocated so far including compiler + temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris + 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should + reuse the register of parent for one of the local variables, + since it will think that parent can't possibly be used any more + in this routine. Assigning to the local variable will thus + munge parent in the parent process. */ + pid_t + p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(), + p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid(); + /* Convince the compiler that p..p7 are live; otherwise, it might + use the same hardware register for all 8 local variables. */ + if (p != p1 || p != p2 || p != p3 || p != p4 + || p != p5 || p != p6 || p != p7) + _exit(1); + + /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent + from child file descriptors. If the child closes a descriptor + before it execs or exits, this munges the parent's descriptor + as well. Test for this by closing stdout in the child. */ + _exit(close(fileno(stdout)) != 0); + } else { + int status; + struct stat st; - freebsd*) + while (wait(&status) != child) + ; + return ( + /* Was there some problem with vforking? */ + child < 0 - # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) - # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + /* Did the child fail? (This shouldn't happen.) */ + || status - ax_pthread_flags="-kthread lthread $ax_pthread_flags" - ;; + /* Did the vfork/compiler bug occur? */ + || parent != getpid() - hpux*) + /* Did the file descriptor bug occur? */ + || fstat(fileno(stdout), &st) != 0 + ); + } +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + ac_cv_func_vfork_works=yes +else + ac_cv_func_vfork_works=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi - # From the cc(1) man page: "[-mt] Sets various -D flags to enable - # multi-threading and also sets -lpthread." +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_vfork_works" >&5 +$as_echo "$ac_cv_func_vfork_works" >&6; } - ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" - ;; +fi; +if test "x$ac_cv_func_fork_works" = xcross; then + ac_cv_func_vfork_works=$ac_cv_func_vfork + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5 +$as_echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;} +fi - openedition*) +if test "x$ac_cv_func_vfork_works" = xyes; then - # IBM z/OS requires a feature-test macro to be defined in order to - # enable POSIX threads at all, so give the user a hint if this is - # not set. (We don't define these ourselves, as they can affect - # other portions of the system API in unpredictable ways.) +$as_echo "#define HAVE_WORKING_VFORK 1" >>confdefs.h - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ +else -# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) - AX_PTHREAD_ZOS_MISSING -# endif +$as_echo "#define vfork fork" >>confdefs.h -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then : - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5 -$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;} fi -rm -f conftest* +if test "x$ac_cv_func_fork_works" = xyes; then - ;; +$as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h - solaris*) +fi - # On Solaris (at least, for some versions), libc contains stubbed - # (non-functional) versions of the pthreads routines, so link-based - # tests will erroneously succeed. (N.B.: The stubs are missing - # pthread_cleanup_push, or rather a function called by this macro, - # so we could check for that, but who knows whether they'll stub - # that too in a future libc.) So we'll check first for the - # standard Solaris way of linking pthreads (-mt -lpthread). + for ac_func in fdwalk getrlimit pipe pipe2 poll socketpair sigaction \ + ptrace64 sbrk setns sigaltstack sigprocmask \ + setpgid setpgrp getrusage getauxval +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF - ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" - ;; -esac +fi +done -# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) -if test "x$GCC" = "xyes"; then : - ax_pthread_flags="-pthread -pthreads $ax_pthread_flags" + ac_fn_c_check_decl "$LINENO" "ADDR_NO_RANDOMIZE" "ac_cv_have_decl_ADDR_NO_RANDOMIZE" "#include +" +if test "x$ac_cv_have_decl_ADDR_NO_RANDOMIZE" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 fi -# The presence of a feature test macro requesting re-entrant function -# definitions is, on some systems, a strong hint that pthreads support is -# correctly enabled +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_ADDR_NO_RANDOMIZE $ac_have_decl +_ACEOF -case $host_os in - darwin* | hpux* | linux* | osf* | solaris*) - ax_pthread_check_macro="_REENTRANT" - ;; - aix*) - ax_pthread_check_macro="_THREAD_SAFE" - ;; + if test "$cross_compiling" = yes; then : + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ - *) - ax_pthread_check_macro="--" - ;; -esac -if test "x$ax_pthread_check_macro" = "x--"; then : - ax_pthread_check_cond=0 + # 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 + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + have_personality=true else - ax_pthread_check_cond="!defined($ax_pthread_check_macro)" + have_personality=false fi - -# Are we compiling with Clang? - -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5 -$as_echo_n "checking whether $CC is Clang... " >&6; } -if ${ax_cv_PTHREAD_CLANG+:} false; then : - $as_echo_n "(cached) " >&6 +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext else - ax_cv_PTHREAD_CLANG=no - # Note that Autoconf sets GCC=yes for Clang as well as GCC - if test "x$GCC" = "xyes"; then - cat confdefs.h - <<_ACEOF >conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ -# if defined(__clang__) && defined(__llvm__) - AX_PTHREAD_CC_IS_CLANG -# endif +#include +int +main () +{ + # if !HAVE_DECL_ADDR_NO_RANDOMIZE + # define ADDR_NO_RANDOMIZE 0x0040000 + # endif + /* Test the flag could be set and stays set. */ + personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE); + if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE)) + return 1 + ; + return 0; +} _ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1; then : - ax_cv_PTHREAD_CLANG=yes +if ac_fn_c_try_run "$LINENO"; then : + have_personality=true +else + have_personality=false +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext fi -rm -f conftest* - fi + if $have_personality + then + +$as_echo "#define HAVE_PERSONALITY 1" >>confdefs.h + + fi + ac_fn_c_check_decl "$LINENO" "strstr" "ac_cv_have_decl_strstr" "$ac_includes_default" +if test "x$ac_cv_have_decl_strstr" = xyes; then : + ac_have_decl=1 +else + ac_have_decl=0 fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5 -$as_echo "$ax_cv_PTHREAD_CLANG" >&6; } -ax_pthread_clang="$ax_cv_PTHREAD_CLANG" -ax_pthread_clang_warning=no +cat >>confdefs.h <<_ACEOF +#define HAVE_DECL_STRSTR $ac_have_decl +_ACEOF -# Clang needs special handling, because older versions handle the -pthread -# option in a rather... idiosyncratic way -if test "x$ax_pthread_clang" = "xyes"; then + # ----------------------- # + # Checks for structures. # + # ----------------------- # - # Clang takes -pthread; it has never supported any other flag + ac_fn_c_check_member "$LINENO" "struct stat" "st_blocks" "ac_cv_member_struct_stat_st_blocks" "$ac_includes_default" +if test "x$ac_cv_member_struct_stat_st_blocks" = xyes; then : - # (Note 1: This will need to be revisited if a system that Clang - # supports has POSIX threads in a separate library. This tends not - # to be the way of modern systems, but it's conceivable.) +cat >>confdefs.h <<_ACEOF +#define HAVE_STRUCT_STAT_ST_BLOCKS 1 +_ACEOF - # (Note 2: On some systems, notably Darwin, -pthread is not needed - # to get POSIX threads support; the API is always present and - # active. We could reasonably leave PTHREAD_CFLAGS empty. But - # -pthread does define _REENTRANT, and while the Darwin headers - # ignore this macro, third-party headers might not.) - PTHREAD_CFLAGS="-pthread" - PTHREAD_LIBS= +fi +ac_fn_c_check_member "$LINENO" "struct stat" "st_blksize" "ac_cv_member_struct_stat_st_blksize" "$ac_includes_default" +if test "x$ac_cv_member_struct_stat_st_blksize" = xyes; then : - ax_pthread_ok=yes +cat >>confdefs.h <<_ACEOF +#define HAVE_STRUCT_STAT_ST_BLKSIZE 1 +_ACEOF - # However, older versions of Clang make a point of warning the user - # that, in an invocation where only linking and no compilation is - # taking place, the -pthread option has no effect ("argument unused - # during compilation"). They expect -pthread to be passed in only - # when source code is being compiled. - # - # Problem is, this is at odds with the way Automake and most other - # C build frameworks function, which is that the same flags used in - # compilation (CFLAGS) are also used in linking. Many systems - # supported by AX_PTHREAD require exactly this for POSIX threads - # support, and in fact it is often not straightforward to specify a - # flag that is used only in the compilation phase and not in - # linking. Such a scenario is extremely rare in practice. - # - # Even though use of the -pthread flag in linking would only print - # a warning, this can be a nuisance for well-run software projects - # that build with -Werror. So if the active version of Clang has - # this misfeature, we search for an option to squash it. - { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5 -$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; } -if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then : +fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing kinfo_getfile" >&5 +$as_echo_n "checking for library containing kinfo_getfile... " >&6; } +if ${ac_cv_search_kinfo_getfile+:} false; then : $as_echo_n "(cached) " >&6 else - ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown - # Create an alternate version of $ac_link that compiles and - # links in two steps (.c -> .o, .o -> exe) instead of one - # (.c -> exe), because the warning occurs only in the second - # step - ax_pthread_save_ac_link="$ac_link" - ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' - ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` - ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" - ax_pthread_save_CFLAGS="$CFLAGS" - for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do - if test "x$ax_pthread_try" = "xunknown"; then : - break -fi - CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" - ac_link="$ax_pthread_save_ac_link" - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -int main(void){return 0;} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_link="$ax_pthread_2step_ac_link" - cat confdefs.h - <<_ACEOF >conftest.$ac_ext + ac_func_search_save_LIBS=$LIBS +cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -int main(void){return 0;} -_ACEOF + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char kinfo_getfile (); +int +main () +{ +return kinfo_getfile (); + ; + return 0; +} +_ACEOF +for ac_lib in '' util util-freebsd; do + if test -z "$ac_lib"; then + ac_res="none required" + else + ac_res=-l$ac_lib + LIBS="-l$ac_lib $ac_func_search_save_LIBS" + fi + if ac_fn_c_try_link "$LINENO"; then : + ac_cv_search_kinfo_getfile=$ac_res +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext + if ${ac_cv_search_kinfo_getfile+:} false; then : + break +fi +done +if ${ac_cv_search_kinfo_getfile+:} false; then : + +else + ac_cv_search_kinfo_getfile=no +fi +rm conftest.$ac_ext +LIBS=$ac_func_search_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_kinfo_getfile" >&5 +$as_echo "$ac_cv_search_kinfo_getfile" >&6; } +ac_res=$ac_cv_search_kinfo_getfile +if test "$ac_res" != no; then : + test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" + +$as_echo "#define HAVE_KINFO_GETFILE 1" >>confdefs.h + +fi + + + # Check for std::thread. This does not work on some platforms, like + # mingw and DJGPP. + ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +ax_pthread_ok=no + +# We used to check for pthread.h first, but this fails if pthread.h +# requires special compiler flags (e.g. on Tru64 or Sequent). +# It gets checked for in the link test anyway. + +# First of all, check if the user has set any of the PTHREAD_LIBS, +# etcetera environment variables, and if threads linking works using +# them: +if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then + ax_pthread_save_CC="$CC" + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + if test "x$PTHREAD_CC" != "x"; then : + CC="$PTHREAD_CC" +fi + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5 +$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char pthread_join (); +int +main () +{ +return pthread_join (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = "xno"; then + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" + fi + CC="$ax_pthread_save_CC" + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" +fi + +# We must check for the threads library under a number of different +# names; the ordering is very important because some systems +# (e.g. DEC) have both -lpthread and -lpthreads, where one of the +# libraries is broken (non-POSIX). + +# Create a list of thread flags to try. Items starting with a "-" are +# C compiler flags, and other items are library names, except for "none" +# which indicates that we try without any flags at all, and "pthread-config" +# which is a program returning the flags for the Pth emulation library. + +ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" + +# The ordering *is* (sometimes) important. Some notes on the +# individual items follow: + +# pthreads: AIX (must check this before -lpthread) +# none: in case threads are in libc; should be tried before -Kthread and +# other compiler flags to prevent continual compiler warnings +# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) +# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 +# (Note: HP C rejects this with "bad form for `-t' option") +# -pthreads: Solaris/gcc (Note: HP C also rejects) +# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it +# doesn't hurt to check since this sometimes defines pthreads and +# -D_REENTRANT too), HP C (must be checked before -lpthread, which +# is present but should not be used directly; and before -mthreads, +# because the compiler interprets this as "-mt" + "-hreads") +# -mthreads: Mingw32/gcc, Lynx/gcc +# pthread: Linux, etcetera +# --thread-safe: KAI C++ +# pthread-config: use pthread-config program (for GNU Pth library) + +case $host_os in + + freebsd*) + + # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) + # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) + + ax_pthread_flags="-kthread lthread $ax_pthread_flags" + ;; + + hpux*) + + # From the cc(1) man page: "[-mt] Sets various -D flags to enable + # multi-threading and also sets -lpthread." + + ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" + ;; + + openedition*) + + # IBM z/OS requires a feature-test macro to be defined in order to + # enable POSIX threads at all, so give the user a hint if this is + # not set. (We don't define these ourselves, as they can affect + # other portions of the system API in unpredictable ways.) + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) + AX_PTHREAD_ZOS_MISSING +# endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5 +$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;} +fi +rm -f conftest* + + ;; + + solaris*) + + # On Solaris (at least, for some versions), libc contains stubbed + # (non-functional) versions of the pthreads routines, so link-based + # tests will erroneously succeed. (N.B.: The stubs are missing + # pthread_cleanup_push, or rather a function called by this macro, + # so we could check for that, but who knows whether they'll stub + # that too in a future libc.) So we'll check first for the + # standard Solaris way of linking pthreads (-mt -lpthread). + + ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" + ;; +esac + +# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) + +if test "x$GCC" = "xyes"; then : + ax_pthread_flags="-pthread -pthreads $ax_pthread_flags" +fi + +# The presence of a feature test macro requesting re-entrant function +# definitions is, on some systems, a strong hint that pthreads support is +# correctly enabled + +case $host_os in + darwin* | hpux* | linux* | osf* | solaris*) + ax_pthread_check_macro="_REENTRANT" + ;; + + aix*) + ax_pthread_check_macro="_THREAD_SAFE" + ;; + + *) + ax_pthread_check_macro="--" + ;; +esac +if test "x$ax_pthread_check_macro" = "x--"; then : + ax_pthread_check_cond=0 +else + ax_pthread_check_cond="!defined($ax_pthread_check_macro)" +fi + +# Are we compiling with Clang? + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5 +$as_echo_n "checking whether $CC is Clang... " >&6; } +if ${ax_cv_PTHREAD_CLANG+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1; then : + ax_cv_PTHREAD_CLANG=yes +fi +rm -f conftest* + + fi + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5 +$as_echo "$ax_cv_PTHREAD_CLANG" >&6; } +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + +ax_pthread_clang_warning=no + +# Clang needs special handling, because older versions handle the -pthread +# option in a rather... idiosyncratic way + +if test "x$ax_pthread_clang" = "xyes"; then + + # Clang takes -pthread; it has never supported any other flag + + # (Note 1: This will need to be revisited if a system that Clang + # supports has POSIX threads in a separate library. This tends not + # to be the way of modern systems, but it's conceivable.) + + # (Note 2: On some systems, notably Darwin, -pthread is not needed + # to get POSIX threads support; the API is always present and + # active. We could reasonably leave PTHREAD_CFLAGS empty. But + # -pthread does define _REENTRANT, and while the Darwin headers + # ignore this macro, third-party headers might not.) + + PTHREAD_CFLAGS="-pthread" + PTHREAD_LIBS= + + ax_pthread_ok=yes + + # However, older versions of Clang make a point of warning the user + # that, in an invocation where only linking and no compilation is + # taking place, the -pthread option has no effect ("argument unused + # during compilation"). They expect -pthread to be passed in only + # when source code is being compiled. + # + # Problem is, this is at odds with the way Automake and most other + # C build frameworks function, which is that the same flags used in + # compilation (CFLAGS) are also used in linking. Many systems + # supported by AX_PTHREAD require exactly this for POSIX threads + # support, and in fact it is often not straightforward to specify a + # flag that is used only in the compilation phase and not in + # linking. Such a scenario is extremely rare in practice. + # + # Even though use of the -pthread flag in linking would only print + # a warning, this can be a nuisance for well-run software projects + # that build with -Werror. So if the active version of Clang has + # this misfeature, we search for an option to squash it. + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5 +$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; } +if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown + # Create an alternate version of $ac_link that compiles and + # links in two steps (.c -> .o, .o -> exe) instead of one + # (.c -> exe), because the warning occurs only in the second + # step + ax_pthread_save_ac_link="$ac_link" + ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' + ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` + ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" + ax_pthread_save_CFLAGS="$CFLAGS" + for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do + if test "x$ax_pthread_try" = "xunknown"; then : + break +fi + CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" + ac_link="$ax_pthread_save_ac_link" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(void){return 0;} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_link="$ax_pthread_2step_ac_link" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(void){return 0;} +_ACEOF if ac_fn_c_try_link "$LINENO"; then : break fi @@ -8509,11 +9342,242 @@ $as_echo_n "checking whether pthreads work with $ax_pthread_try_flag... " >&6; } set dummy pthread-config; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } -if ${ac_cv_prog_ax_pthread_config+:} false; then : +if ${ac_cv_prog_ax_pthread_config+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ax_pthread_config"; then + ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ax_pthread_config="yes" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + + test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no" +fi +fi +ax_pthread_config=$ac_cv_prog_ax_pthread_config +if test -n "$ax_pthread_config"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5 +$as_echo "$ax_pthread_config" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + if test "x$ax_pthread_config" = "xno"; then : + continue +fi + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5 +$as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; } + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void routine(void *a) { a = 0; } + static void *start_routine(void *a) { return a; } +int +main () +{ +pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_pthread_ok=yes +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 +$as_echo "$ax_pthread_ok" >&6; } + if test "x$ax_pthread_ok" = "xyes"; then : + break +fi + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi + +# Various other checks: +if test "x$ax_pthread_ok" = "xyes"; then + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5 +$as_echo_n "checking for joinable pthread attribute... " >&6; } +if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_JOINABLE_ATTR=unknown + for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int attr = $ax_pthread_attr; return attr /* ; */ + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5 +$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; } + if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ + test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ + test "x$ax_pthread_joinable_attr_defined" != "xyes"; then : + +cat >>confdefs.h <<_ACEOF +#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR +_ACEOF + + ax_pthread_joinable_attr_defined=yes + +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5 +$as_echo_n "checking whether more special flags are required for pthreads... " >&6; } +if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then : + $as_echo_n "(cached) " >&6 +else + ax_cv_PTHREAD_SPECIAL_FLAGS=no + case $host_os in + solaris*) + ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" + ;; + esac + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5 +$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; } + if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ + test "x$ax_pthread_special_flags_added" != "xyes"; then : + PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" + ax_pthread_special_flags_added=yes +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5 +$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; } +if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +int +main () +{ +int i = PTHREAD_PRIO_INHERIT; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ax_cv_PTHREAD_PRIO_INHERIT=yes +else + ax_cv_PTHREAD_PRIO_INHERIT=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5 +$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; } + if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ + test "x$ax_pthread_prio_inherit_defined" != "xyes"; then : + +$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h + + ax_pthread_prio_inherit_defined=yes + +fi + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + # More AIX lossage: compile with *_r variant + if test "x$GCC" != "xyes"; then + case $host_os in + aix*) + case "x/$CC" in #( + x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) : + #handle absolute path differently from PATH based program lookup + case "x$CC" in #( + x/*) : + if as_fn_executable_p ${CC}_r; then : + PTHREAD_CC="${CC}_r" +fi ;; #( + *) : + for ac_prog in ${CC}_r +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_PTHREAD_CC+:} false; then : $as_echo_n "(cached) " >&6 else - if test -n "$ax_pthread_config"; then - ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test. + if test -n "$PTHREAD_CC"; then + ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH @@ -8522,7 +9586,7 @@ do test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then - ac_cv_prog_ax_pthread_config="yes" + ac_cv_prog_PTHREAD_CC="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi @@ -8530,377 +9594,1010 @@ done done IFS=$as_save_IFS - test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no" fi fi -ax_pthread_config=$ac_cv_prog_ax_pthread_config -if test -n "$ax_pthread_config"; then - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5 -$as_echo "$ax_pthread_config" >&6; } +PTHREAD_CC=$ac_cv_prog_PTHREAD_CC +if test -n "$PTHREAD_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5 +$as_echo "$PTHREAD_CC" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi - if test "x$ax_pthread_config" = "xno"; then : - continue -fi - PTHREAD_CFLAGS="`pthread-config --cflags`" - PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + test -n "$PTHREAD_CC" && break +done +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + ;; +esac ;; #( + *) : + ;; +esac ;; + esac + fi +fi - *) - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5 -$as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; } - PTHREAD_LIBS="-l$ax_pthread_try_flag" +test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + + + + + +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: +if test "x$ax_pthread_ok" = "xyes"; then + threads=yes + : +else + ax_pthread_ok=no + threads=no +fi +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + + if test "$threads" = "yes"; then + save_LIBS="$LIBS" + LIBS="$PTHREAD_LIBS $LIBS" + save_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::thread" >&5 +$as_echo_n "checking for std::thread... " >&6; } +if ${gdb_cv_cxx_std_thread+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + void callback() { } +int +main () +{ +std::thread t(callback); + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + gdb_cv_cxx_std_thread=yes +else + gdb_cv_cxx_std_thread=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_cxx_std_thread" >&5 +$as_echo "$gdb_cv_cxx_std_thread" >&6; } + + # This check must be here, while LIBS includes any necessary + # threading library. + for ac_func in pthread_sigmask pthread_setname_np +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + + LIBS="$save_LIBS" + CXXFLAGS="$save_CXXFLAGS" + fi + if test "$gdb_cv_cxx_std_thread" = "yes"; then + +$as_echo "#define CXX_STD_THREAD 1" >>confdefs.h + + fi + ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sigsetjmp" >&5 +$as_echo_n "checking for sigsetjmp... " >&6; } +if ${gdb_cv_func_sigsetjmp+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + #include + +int +main () +{ +sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gdb_cv_func_sigsetjmp=yes +else + gdb_cv_func_sigsetjmp=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_sigsetjmp" >&5 +$as_echo "$gdb_cv_func_sigsetjmp" >&6; } + if test "$gdb_cv_func_sigsetjmp" = "yes"; then + +$as_echo "#define HAVE_SIGSETJMP 1" >>confdefs.h + + fi + + +# Check whether --with-intel_pt was given. +if test "${with_intel_pt+set}" = set; then : + withval=$with_intel_pt; +else + with_intel_pt=auto +fi + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use intel pt" >&5 +$as_echo_n "checking whether to use intel pt... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_intel_pt" >&5 +$as_echo "$with_intel_pt" >&6; } + + if test "${with_intel_pt}" = no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Intel Processor Trace support disabled; some features may be unavailable." >&5 +$as_echo "$as_me: WARNING: Intel Processor Trace support disabled; some features may be unavailable." >&2;} + HAVE_LIBIPT=no + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + #include + #ifndef PERF_ATTR_SIZE_VER5 + # error + #endif + +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + perf_event=yes +else + perf_event=no +fi +rm -f conftest.err conftest.i conftest.$ac_ext + if test "$perf_event" != yes; then + if test "$with_intel_pt" = yes; then + as_fn_error $? "linux/perf_event.h missing or too old" "$LINENO" 5 + else + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: linux/perf_event.h missing or too old; some features may be unavailable." >&5 +$as_echo "$as_me: WARNING: linux/perf_event.h missing or too old; some features may be unavailable." >&2;} + fi + fi + + + + + + + + + + use_additional=yes + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + +# Check whether --with-libipt-prefix was given. +if test "${with_libipt_prefix+set}" = set; then : + withval=$with_libipt_prefix; + if test "X$withval" = "Xno"; then + use_additional=no + else + if test "X$withval" = "X"; then + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + else + additional_includedir="$withval/include" + additional_libdir="$withval/lib" + fi + fi + +fi + + +# Check whether --with-libipt-type was given. +if test "${with_libipt_type+set}" = set; then : + withval=$with_libipt_type; with_libipt_type=$withval +else + with_libipt_type=auto +fi + + lib_type=`eval echo \$with_libipt_type` + + LIBIPT= + LTLIBIPT= + INCIPT= + rpathdirs= + ltrpathdirs= + names_already_handled= + names_next_round='ipt ' + while test -n "$names_next_round"; do + names_this_round="$names_next_round" + names_next_round= + for name in $names_this_round; do + already_handled= + for n in $names_already_handled; do + if test "$n" = "$name"; then + already_handled=yes + break + fi + done + if test -z "$already_handled"; then + names_already_handled="$names_already_handled $name" + uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./-|ABCDEFGHIJKLMNOPQRSTUVWXYZ___|'` + eval value=\"\$HAVE_LIB$uppername\" + if test -n "$value"; then + if test "$value" = yes; then + eval value=\"\$LIB$uppername\" + test -z "$value" || LIBIPT="${LIBIPT}${LIBIPT:+ }$value" + eval value=\"\$LTLIB$uppername\" + test -z "$value" || LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }$value" + else + : + fi + else + found_dir= + found_la= + found_so= + found_a= + if test $use_additional = yes; then + if test -n "$shlibext" && test -f "$additional_libdir/lib$name.$shlibext" && test x$lib_type != xstatic; then + found_dir="$additional_libdir" + found_so="$additional_libdir/lib$name.$shlibext" + if test -f "$additional_libdir/lib$name.la"; then + found_la="$additional_libdir/lib$name.la" + fi + elif test x$lib_type != xshared; then + if test -f "$additional_libdir/lib$name.$libext"; then + found_dir="$additional_libdir" + found_a="$additional_libdir/lib$name.$libext" + if test -f "$additional_libdir/lib$name.la"; then + found_la="$additional_libdir/lib$name.la" + fi + fi + fi + fi + if test "X$found_dir" = "X"; then + for x in $LDFLAGS $LTLIBIPT; do + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + eval x=\"$x\" + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + case "$x" in + -L*) + dir=`echo "X$x" | sed -e 's/^X-L//'` + if test -n "$shlibext" && test -f "$dir/lib$name.$shlibext" && test x$lib_type != xstatic; then + found_dir="$dir" + found_so="$dir/lib$name.$shlibext" + if test -f "$dir/lib$name.la"; then + found_la="$dir/lib$name.la" + fi + elif test x$lib_type != xshared; then + if test -f "$dir/lib$name.$libext"; then + found_dir="$dir" + found_a="$dir/lib$name.$libext" + if test -f "$dir/lib$name.la"; then + found_la="$dir/lib$name.la" + fi + fi + fi + ;; + esac + if test "X$found_dir" != "X"; then + break + fi + done + fi + if test "X$found_dir" != "X"; then + LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }-L$found_dir -l$name" + if test "X$found_so" != "X"; then + if test "$enable_rpath" = no || test "X$found_dir" = "X/usr/lib"; then + LIBIPT="${LIBIPT}${LIBIPT:+ }$found_so" + else + haveit= + for x in $ltrpathdirs; do + if test "X$x" = "X$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + ltrpathdirs="$ltrpathdirs $found_dir" + fi + if test "$hardcode_direct" = yes; then + LIBIPT="${LIBIPT}${LIBIPT:+ }$found_so" + else + if test -n "$hardcode_libdir_flag_spec" && test "$hardcode_minus_L" = no; then + LIBIPT="${LIBIPT}${LIBIPT:+ }$found_so" + haveit= + for x in $rpathdirs; do + if test "X$x" = "X$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + rpathdirs="$rpathdirs $found_dir" + fi + else + haveit= + for x in $LDFLAGS $LIBIPT; do + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + eval x=\"$x\" + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + if test "X$x" = "X-L$found_dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + LIBIPT="${LIBIPT}${LIBIPT:+ }-L$found_dir" + fi + if test "$hardcode_minus_L" != no; then + LIBIPT="${LIBIPT}${LIBIPT:+ }$found_so" + else + LIBIPT="${LIBIPT}${LIBIPT:+ }-l$name" + fi + fi + fi + fi + else + if test "X$found_a" != "X"; then + LIBIPT="${LIBIPT}${LIBIPT:+ }$found_a" + else + LIBIPT="${LIBIPT}${LIBIPT:+ }-L$found_dir -l$name" + fi + fi + additional_includedir= + case "$found_dir" in + */lib | */lib/) + basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e 's,/lib/*$,,'` + additional_includedir="$basedir/include" ;; - esac + esac + if test "X$additional_includedir" != "X"; then + if test "X$additional_includedir" != "X/usr/include"; then + haveit= + if test "X$additional_includedir" = "X/usr/local/include"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + for x in $CPPFLAGS $INCIPT; do + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + eval x=\"$x\" + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + if test "X$x" = "X-I$additional_includedir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_includedir"; then + INCIPT="${INCIPT}${INCIPT:+ }-I$additional_includedir" + fi + fi + fi + fi + fi + if test -n "$found_la"; then + save_libdir="$libdir" + case "$found_la" in + */* | *\\*) . "$found_la" ;; + *) . "./$found_la" ;; + esac + libdir="$save_libdir" + for dep in $dependency_libs; do + case "$dep" in + -L*) + additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` + if test "X$additional_libdir" != "X/usr/lib"; then + haveit= + if test "X$additional_libdir" = "X/usr/local/lib"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + haveit= + for x in $LDFLAGS $LIBIPT; do + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + eval x=\"$x\" + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + LIBIPT="${LIBIPT}${LIBIPT:+ }-L$additional_libdir" + fi + fi + haveit= + for x in $LDFLAGS $LTLIBIPT; do + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + eval x=\"$x\" + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }-L$additional_libdir" + fi + fi + fi + fi + ;; + -R*) + dir=`echo "X$dep" | sed -e 's/^X-R//'` + if test "$enable_rpath" != no; then + haveit= + for x in $rpathdirs; do + if test "X$x" = "X$dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + rpathdirs="$rpathdirs $dir" + fi + haveit= + for x in $ltrpathdirs; do + if test "X$x" = "X$dir"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + ltrpathdirs="$ltrpathdirs $dir" + fi + fi + ;; + -l*) + names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` + ;; + *.la) + names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` + ;; + *) + LIBIPT="${LIBIPT}${LIBIPT:+ }$dep" + LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }$dep" + ;; + esac + done + fi + else + if test "x$lib_type" = "xauto" || test "x$lib_type" = "xshared"; then + LIBIPT="${LIBIPT}${LIBIPT:+ }-l$name" + LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }-l$name" + else + LIBIPT="${LIBIPT}${LIBIPT:+ }-l:lib$name.$libext" + LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }-l:lib$name.$libext" + fi + fi + fi + fi + done + done + if test "X$rpathdirs" != "X"; then + if test -n "$hardcode_libdir_separator"; then + alldirs= + for found_dir in $rpathdirs; do + alldirs="${alldirs}${alldirs:+$hardcode_libdir_separator}$found_dir" + done + acl_save_libdir="$libdir" + libdir="$alldirs" + eval flag=\"$hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + LIBIPT="${LIBIPT}${LIBIPT:+ }$flag" + else + for found_dir in $rpathdirs; do + acl_save_libdir="$libdir" + libdir="$found_dir" + eval flag=\"$hardcode_libdir_flag_spec\" + libdir="$acl_save_libdir" + LIBIPT="${LIBIPT}${LIBIPT:+ }$flag" + done + fi + fi + if test "X$ltrpathdirs" != "X"; then + for found_dir in $ltrpathdirs; do + LTLIBIPT="${LTLIBIPT}${LTLIBIPT:+ }-R$found_dir" + done + fi - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - # Check for various functions. We must include pthread.h, - # since some functions may be macros. (On the Sequent, we - # need a special flag -Kthread to make this header compile.) - # We check for pthread_join because it is in -lpthread on IRIX - # while pthread_create is in libc. We check for pthread_attr_init - # due to DEC craziness with -lpthreads. We check for - # pthread_cleanup_push because it is one of the few pthread - # functions on Solaris that doesn't have a non-functional libc stub. - # We try pthread_create on general principles. + ac_save_CPPFLAGS="$CPPFLAGS" - cat confdefs.h - <<_ACEOF >conftest.$ac_ext + for element in $INCIPT; do + haveit= + for x in $CPPFLAGS; do + + acl_save_prefix="$prefix" + prefix="$acl_final_prefix" + acl_save_exec_prefix="$exec_prefix" + exec_prefix="$acl_final_exec_prefix" + eval x=\"$x\" + exec_prefix="$acl_save_exec_prefix" + prefix="$acl_save_prefix" + + if test "X$x" = "X$element"; then + haveit=yes + break + fi + done + if test -z "$haveit"; then + CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element" + fi + done + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libipt" >&5 +$as_echo_n "checking for libipt... " >&6; } +if ${ac_cv_libipt+:} false; then : + $as_echo_n "(cached) " >&6 +else + + ac_save_LIBS="$LIBS" + LIBS="$LIBS $LIBIPT" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -#include -# if $ax_pthread_check_cond -# error "$ax_pthread_check_macro must be defined" -# endif - static void routine(void *a) { a = 0; } - static void *start_routine(void *a) { return a; } +#include "intel-pt.h" int main () { -pthread_t th; pthread_attr_t attr; - pthread_create(&th, 0, start_routine, 0); - pthread_join(th, 0); - pthread_attr_init(&attr); - pthread_cleanup_push(routine, 0); - pthread_cleanup_pop(0) /* ; */ +pt_insn_alloc_decoder (0); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : - ax_pthread_ok=yes + ac_cv_libipt=yes +else + ac_cv_libipt=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext + LIBS="$ac_save_LIBS" - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" - - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5 -$as_echo "$ax_pthread_ok" >&6; } - if test "x$ax_pthread_ok" = "xyes"; then : - break fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_libipt" >&5 +$as_echo "$ac_cv_libipt" >&6; } + if test "$ac_cv_libipt" = yes; then + HAVE_LIBIPT=yes - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" +$as_echo "#define HAVE_LIBIPT 1" >>confdefs.h + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libipt" >&5 +$as_echo_n "checking how to link with libipt... " >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBIPT" >&5 +$as_echo "$LIBIPT" >&6; } + else + HAVE_LIBIPT=no + CPPFLAGS="$ac_save_CPPFLAGS" + LIBIPT= + LTLIBIPT= + fi + + + + + + + if test "$HAVE_LIBIPT" != yes; then + if test "$with_intel_pt" = yes; then + as_fn_error $? "libipt is missing or unusable" "$LINENO" 5 + else + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libipt is missing or unusable; some features may be unavailable." >&5 +$as_echo "$as_me: WARNING: libipt is missing or unusable; some features may be unavailable." >&2;} + fi + else + save_LIBS=$LIBS + LIBS="$LIBS $LIBIPT" + for ac_func in pt_insn_event +do : + ac_fn_c_check_func "$LINENO" "pt_insn_event" "ac_cv_func_pt_insn_event" +if test "x$ac_cv_func_pt_insn_event" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_PT_INSN_EVENT 1 +_ACEOF + +fi done + + ac_fn_c_check_member "$LINENO" "struct pt_insn" "enabled" "ac_cv_member_struct_pt_insn_enabled" "#include +" +if test "x$ac_cv_member_struct_pt_insn_enabled" = xyes; then : + +cat >>confdefs.h <<_ACEOF +#define HAVE_STRUCT_PT_INSN_ENABLED 1 +_ACEOF + + fi +ac_fn_c_check_member "$LINENO" "struct pt_insn" "resynced" "ac_cv_member_struct_pt_insn_resynced" "#include +" +if test "x$ac_cv_member_struct_pt_insn_resynced" = xyes; then : -# Various other checks: -if test "x$ax_pthread_ok" = "xyes"; then - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" +cat >>confdefs.h <<_ACEOF +#define HAVE_STRUCT_PT_INSN_RESYNCED 1 +_ACEOF - # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5 -$as_echo_n "checking for joinable pthread attribute... " >&6; } -if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then : + +fi + + LIBS=$save_LIBS + fi + fi + + if test "$ac_cv_header_sys_procfs_h" = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gregset_t in sys/procfs.h" >&5 +$as_echo_n "checking for gregset_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_gregset_t+:} false; then : $as_echo_n "(cached) " >&6 else - ax_cv_PTHREAD_JOINABLE_ATTR=unknown - for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do - cat confdefs.h - <<_ACEOF >conftest.$ac_ext + cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -#include + +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include int main () { -int attr = $ax_pthread_attr; return attr /* ; */ +gregset_t avar ; return 0; } _ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext - done +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_gregset_t=yes +else + bfd_cv_have_sys_procfs_type_gregset_t=no fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5 -$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; } - if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ - test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ - test "x$ax_pthread_joinable_attr_defined" != "xyes"; then : +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi -cat >>confdefs.h <<_ACEOF -#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR -_ACEOF + if test $bfd_cv_have_sys_procfs_type_gregset_t = yes; then - ax_pthread_joinable_attr_defined=yes +$as_echo "#define HAVE_GREGSET_T 1" >>confdefs.h -fi + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_gregset_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_gregset_t" >&6; } - { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5 -$as_echo_n "checking whether more special flags are required for pthreads... " >&6; } -if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for fpregset_t in sys/procfs.h" >&5 +$as_echo_n "checking for fpregset_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_fpregset_t+:} false; then : $as_echo_n "(cached) " >&6 else - ax_cv_PTHREAD_SPECIAL_FLAGS=no - case $host_os in - solaris*) - ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" - ;; - esac + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include +int +main () +{ +fpregset_t avar + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_fpregset_t=yes +else + bfd_cv_have_sys_procfs_type_fpregset_t=no fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5 -$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; } - if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ - test "x$ax_pthread_special_flags_added" != "xyes"; then : - PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" - ax_pthread_special_flags_added=yes +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5 -$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; } -if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then : + if test $bfd_cv_have_sys_procfs_type_fpregset_t = yes; then + +$as_echo "#define HAVE_FPREGSET_T 1" >>confdefs.h + + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_fpregset_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_fpregset_t" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for prgregset_t in sys/procfs.h" >&5 +$as_echo_n "checking for prgregset_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_prgregset_t+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -#include + +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include int main () { -int i = PTHREAD_PRIO_INHERIT; +prgregset_t avar ; return 0; } _ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ax_cv_PTHREAD_PRIO_INHERIT=yes +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_prgregset_t=yes else - ax_cv_PTHREAD_PRIO_INHERIT=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext + bfd_cv_have_sys_procfs_type_prgregset_t=no fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5 -$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; } - if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ - test "x$ax_pthread_prio_inherit_defined" != "xyes"; then : - -$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi - ax_pthread_prio_inherit_defined=yes + if test $bfd_cv_have_sys_procfs_type_prgregset_t = yes; then -fi +$as_echo "#define HAVE_PRGREGSET_T 1" >>confdefs.h - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_prgregset_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_prgregset_t" >&6; } - # More AIX lossage: compile with *_r variant - if test "x$GCC" != "xyes"; then - case $host_os in - aix*) - case "x/$CC" in #( - x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) : - #handle absolute path differently from PATH based program lookup - case "x$CC" in #( - x/*) : - if as_fn_executable_p ${CC}_r; then : - PTHREAD_CC="${CC}_r" -fi ;; #( - *) : - for ac_prog in ${CC}_r -do - # Extract the first word of "$ac_prog", so it can be a program name with args. -set dummy $ac_prog; ac_word=$2 -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 -$as_echo_n "checking for $ac_word... " >&6; } -if ${ac_cv_prog_PTHREAD_CC+:} false; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for prfpregset_t in sys/procfs.h" >&5 +$as_echo_n "checking for prfpregset_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_prfpregset_t+:} false; then : $as_echo_n "(cached) " >&6 else - if test -n "$PTHREAD_CC"; then - ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include +int +main () +{ +prfpregset_t avar + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_prfpregset_t=yes else -as_save_IFS=$IFS; IFS=$PATH_SEPARATOR -for as_dir in $PATH -do - IFS=$as_save_IFS - test -z "$as_dir" && as_dir=. - for ac_exec_ext in '' $ac_executable_extensions; do - if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then - ac_cv_prog_PTHREAD_CC="$ac_prog" - $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 - break 2 - fi -done - done -IFS=$as_save_IFS + bfd_cv_have_sys_procfs_type_prfpregset_t=no fi -fi -PTHREAD_CC=$ac_cv_prog_PTHREAD_CC -if test -n "$PTHREAD_CC"; then - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5 -$as_echo "$PTHREAD_CC" >&6; } -else - { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 -$as_echo "no" >&6; } +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi + if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then - test -n "$PTHREAD_CC" && break -done -test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" - ;; -esac ;; #( - *) : - ;; -esac - ;; - esac - fi -fi +$as_echo "#define HAVE_PRFPREGSET_T 1" >>confdefs.h -test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_prfpregset_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_prfpregset_t" >&6; } + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for prgregset32_t in sys/procfs.h" >&5 +$as_echo_n "checking for prgregset32_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_prgregset32_t+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include +int +main () +{ +prgregset32_t avar + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_prgregset32_t=yes +else + bfd_cv_have_sys_procfs_type_prgregset32_t=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + if test $bfd_cv_have_sys_procfs_type_prgregset32_t = yes; then -# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: -if test "x$ax_pthread_ok" = "xyes"; then - threads=yes - : +$as_echo "#define HAVE_PRGREGSET32_T 1" >>confdefs.h + + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_prgregset32_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_prgregset32_t" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lwpid_t in sys/procfs.h" >&5 +$as_echo_n "checking for lwpid_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_lwpid_t+:} false; then : + $as_echo_n "(cached) " >&6 else - ax_pthread_ok=no - threads=no -fi -ac_ext=cpp -ac_cpp='$CXXCPP $CPPFLAGS' -ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' -ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' -ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include +int +main () +{ +lwpid_t avar + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_lwpid_t=yes +else + bfd_cv_have_sys_procfs_type_lwpid_t=no - if test "$threads" = "yes"; then - save_LIBS="$LIBS" - LIBS="$PTHREAD_LIBS $LIBS" - save_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$PTHREAD_CFLAGS $save_CXXFLAGS" - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::thread" >&5 -$as_echo_n "checking for std::thread... " >&6; } -if ${gdb_cv_cxx_std_thread+:} false; then : +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi + + if test $bfd_cv_have_sys_procfs_type_lwpid_t = yes; then + +$as_echo "#define HAVE_LWPID_T 1" >>confdefs.h + + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_lwpid_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_lwpid_t" >&6; } + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for psaddr_t in sys/procfs.h" >&5 +$as_echo_n "checking for psaddr_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_psaddr_t+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -#include - void callback() { } + +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include int main () { -std::thread t(callback); +psaddr_t avar ; return 0; } _ACEOF -if ac_fn_cxx_try_compile "$LINENO"; then : - gdb_cv_cxx_std_thread=yes +if ac_fn_c_try_compile "$LINENO"; then : + bfd_cv_have_sys_procfs_type_psaddr_t=yes else - gdb_cv_cxx_std_thread=no + bfd_cv_have_sys_procfs_type_psaddr_t=no + fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_cxx_std_thread" >&5 -$as_echo "$gdb_cv_cxx_std_thread" >&6; } - - # This check must be here, while LIBS includes any necessary - # threading library. - for ac_func in pthread_sigmask pthread_setname_np -do : - as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` -ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var" -if eval test \"x\$"$as_ac_var"\" = x"yes"; then : - cat >>confdefs.h <<_ACEOF -#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 -_ACEOF - -fi -done + if test $bfd_cv_have_sys_procfs_type_psaddr_t = yes; then - LIBS="$save_LIBS" - CXXFLAGS="$save_CXXFLAGS" - fi - if test "$gdb_cv_cxx_std_thread" = "yes"; then - -$as_echo "#define CXX_STD_THREAD 1" >>confdefs.h - - fi - ac_ext=c -ac_cpp='$CPP $CPPFLAGS' -ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' -ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' -ac_compiler_gnu=$ac_cv_c_compiler_gnu +$as_echo "#define HAVE_PSADDR_T 1" >>confdefs.h + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_psaddr_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_psaddr_t" >&6; } - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sigsetjmp" >&5 -$as_echo_n "checking for sigsetjmp... " >&6; } -if ${gdb_cv_func_sigsetjmp+:} false; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for elf_fpregset_t in sys/procfs.h" >&5 +$as_echo_n "checking for elf_fpregset_t in sys/procfs.h... " >&6; } + if ${bfd_cv_have_sys_procfs_type_elf_fpregset_t+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -#include - +#define _SYSCALL32 +/* Needed for new procfs interface on sparc-solaris. */ +#define _STRUCTURED_PROC 1 +#include int main () { -sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1); +elf_fpregset_t avar ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : - gdb_cv_func_sigsetjmp=yes + bfd_cv_have_sys_procfs_type_elf_fpregset_t=yes else - gdb_cv_func_sigsetjmp=no + bfd_cv_have_sys_procfs_type_elf_fpregset_t=no + fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_sigsetjmp" >&5 -$as_echo "$gdb_cv_func_sigsetjmp" >&6; } -if test "$gdb_cv_func_sigsetjmp" = "yes"; then -$as_echo "#define HAVE_SIGSETJMP 1" >>confdefs.h + if test $bfd_cv_have_sys_procfs_type_elf_fpregset_t = yes; then -fi +$as_echo "#define HAVE_ELF_FPREGSET_T 1" >>confdefs.h + + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_have_sys_procfs_type_elf_fpregset_t" >&5 +$as_echo "$bfd_cv_have_sys_procfs_type_elf_fpregset_t" >&6; } + + fi # Check whether we will enable the inclusion of unit tests when @@ -8908,7 +10605,13 @@ fi # # The default value of this option changes depending whether we're on # development mode (in which case it's "true") or not (in which case -# it's "false"). +# it's "false"). The $development variable is set by the GDB_AC_COMMON +# macro, which must therefore be used before GDB_AC_SELFTEST. + +if test "x$development" != xtrue && test "x$development" != xfalse; then : + as_fn_error $? "Invalid value for \$development, got \"$development\", expecting \"true\" or \"false\"." "$LINENO" 5 +fi + # Check whether --enable-unit-tests was given. if test "${enable_unit_tests+set}" = set; then : enableval=$enable_unit_tests; case "${enableval}" in @@ -8937,6 +10640,375 @@ else fi +# Check the return and argument types of ptrace. + + +for ac_header in sys/ptrace.h ptrace.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +gdb_ptrace_headers=' +#include +#if HAVE_SYS_PTRACE_H +# include +#endif +#if HAVE_UNISTD_H +# include +#endif +' + +# Check return type. Varargs (used on GNU/Linux) conflict with the +# empty argument list, so check for that explicitly. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of ptrace" >&5 +$as_echo_n "checking return type of ptrace... " >&6; } +if ${gdb_cv_func_ptrace_ret+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$gdb_ptrace_headers +int +main () +{ +extern long ptrace (enum __ptrace_request, ...); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gdb_cv_func_ptrace_ret='long' +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$gdb_ptrace_headers +int +main () +{ +extern int ptrace (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gdb_cv_func_ptrace_ret='int' +else + gdb_cv_func_ptrace_ret='long' +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_ptrace_ret" >&5 +$as_echo "$gdb_cv_func_ptrace_ret" >&6; } + +cat >>confdefs.h <<_ACEOF +#define PTRACE_TYPE_RET $gdb_cv_func_ptrace_ret +_ACEOF + +# Check argument types. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking types of arguments for ptrace" >&5 +$as_echo_n "checking types of arguments for ptrace... " >&6; } +if ${gdb_cv_func_ptrace_args+:} false; then : + $as_echo_n "(cached) " >&6 +else + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$gdb_ptrace_headers +int +main () +{ +extern long ptrace (enum __ptrace_request, ...); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gdb_cv_func_ptrace_args='enum __ptrace_request,int,long,long' +else + +for gdb_arg1 in 'int' 'long'; do + for gdb_arg2 in 'pid_t' 'int' 'long'; do + for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do + for gdb_arg4 in 'int' 'long' 'void *'; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$gdb_ptrace_headers +int +main () +{ + +extern $gdb_cv_func_ptrace_ret + ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4); + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4"; + break 4; +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + for gdb_arg5 in 'int *' 'int' 'long'; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +$gdb_ptrace_headers +int +main () +{ + +extern $gdb_cv_func_ptrace_ret + ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5); + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + +gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5"; + break 5; +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + done + done + done + done +done +# Provide a safe default value. +: ${gdb_cv_func_ptrace_args='int,int,long,long'} + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_ptrace_args" >&5 +$as_echo "$gdb_cv_func_ptrace_args" >&6; } +ac_save_IFS=$IFS; IFS=',' +set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'` +IFS=$ac_save_IFS +shift + +cat >>confdefs.h <<_ACEOF +#define PTRACE_TYPE_ARG1 $1 +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define PTRACE_TYPE_ARG3 $3 +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define PTRACE_TYPE_ARG4 $4 +_ACEOF + +if test -n "$5"; then + +cat >>confdefs.h <<_ACEOF +#define PTRACE_TYPE_ARG5 $5 +_ACEOF + +fi + + +# Detect support warning flags. + +# Check whether --enable-werror was given. +if test "${enable_werror+set}" = set; then : + enableval=$enable_werror; case "${enableval}" in + yes | y) ERROR_ON_WARNING="yes" ;; + no | n) ERROR_ON_WARNING="no" ;; + *) as_fn_error $? "bad value ${enableval} for --enable-werror" "$LINENO" 5 ;; + esac +fi + + +# Enable -Werror by default when using gcc. Turn it off for releases. +if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then + ERROR_ON_WARNING=yes +fi + +WERROR_CFLAGS="" +if test "${ERROR_ON_WARNING}" = yes ; then + WERROR_CFLAGS="-Werror" +fi + +# The options we'll try to enable. +build_warnings="-Wall -Wpointer-arith \ +-Wno-unused -Wunused-value -Wunused-variable -Wunused-function \ +-Wno-switch -Wno-char-subscripts \ +-Wempty-body -Wunused-but-set-parameter -Wunused-but-set-variable \ +-Wno-sign-compare -Wno-error=maybe-uninitialized \ +-Wno-mismatched-tags \ +-Wno-error=deprecated-register \ +-Wsuggest-override \ +-Wimplicit-fallthrough=3 \ +-Wduplicated-cond \ +-Wshadow=local \ +-Wdeprecated-copy \ +-Wdeprecated-copy-dtor \ +-Wredundant-move \ +-Wmissing-declarations \ +-Wmissing-prototypes \ +-Wstrict-null-sentinel \ +" + +case "${host}" in + *-*-mingw32*) + # Enable -Wno-format by default when using gcc on mingw since many + # GCC versions complain about %I64. + build_warnings="$build_warnings -Wno-format" ;; + *-*-solaris*) + # Solaris 11.4 uses #pragma no_inline that GCC + # doesn't understand. + build_warnings="$build_warnings -Wno-unknown-pragmas" + # Solaris 11 marks vfork deprecated. + build_warnings="$build_warnings -Wno-deprecated-declarations" ;; + *) + # Note that gcc requires -Wformat for -Wformat-nonliteral to work, + # but there's a special case for this below. + build_warnings="$build_warnings -Wformat-nonliteral" ;; +esac + +# Check whether --enable-build-warnings was given. +if test "${enable_build_warnings+set}" = set; then : + enableval=$enable_build_warnings; case "${enableval}" in + yes) ;; + no) build_warnings="-w";; + ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"` + build_warnings="${build_warnings} ${t}";; + *,) t=`echo "${enableval}" | sed -e "s/,/ /g"` + build_warnings="${t} ${build_warnings}";; + *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;; +esac +if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then + echo "Setting compiler warning flags = $build_warnings" 6>&1 +fi +fi +# Check whether --enable-gdb-build-warnings was given. +if test "${enable_gdb_build_warnings+set}" = set; then : + enableval=$enable_gdb_build_warnings; case "${enableval}" in + yes) ;; + no) build_warnings="-w";; + ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"` + build_warnings="${build_warnings} ${t}";; + *,) t=`echo "${enableval}" | sed -e "s/,/ /g"` + build_warnings="${t} ${build_warnings}";; + *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;; +esac +if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then + echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1 +fi +fi + +# The set of warnings supported by a C++ compiler is not the same as +# of the C compiler. +ac_ext=cpp +ac_cpp='$CXXCPP $CPPFLAGS' +ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_cxx_compiler_gnu + + +WARN_CFLAGS="" +if test "x${build_warnings}" != x -a "x$GCC" = xyes +then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler warning flags" >&5 +$as_echo_n "checking compiler warning flags... " >&6; } + # Separate out the -Werror flag as some files just cannot be + # compiled with it enabled. + for w in ${build_warnings}; do + # GCC does not complain about -Wno-unknown-warning. Invert + # and test -Wunknown-warning instead. + case $w in + -Wno-*) + wtest=`echo $w | sed 's/-Wno-/-W/g'` ;; + -Wformat-nonliteral) + # gcc requires -Wformat before -Wformat-nonliteral + # will work, so stick them together. + w="-Wformat $w" + wtest="$w" + ;; + *) + wtest=$w ;; + esac + + case $w in + -Werr*) WERROR_CFLAGS=-Werror ;; + *) + # Check whether GCC accepts it. + saved_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror $wtest" + saved_CXXFLAGS="$CXXFLAGS" + CXXFLAGS="$CXXFLAGS -Werror $wtest" + if test "x$w" = "x-Wunused-variable"; then + # Check for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38958, + # fixed in GCC 4.9. This test is derived from the gdb + # source code that triggered this bug in GCC. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +struct scoped_restore_base {}; + struct scoped_restore_tmpl : public scoped_restore_base { + ~scoped_restore_tmpl() {} + }; +int +main () +{ +const scoped_restore_base &b = scoped_restore_tmpl(); + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + WARN_CFLAGS="${WARN_CFLAGS} $w" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + WARN_CFLAGS="${WARN_CFLAGS} $w" +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + fi + CFLAGS="$saved_CFLAGS" + CXXFLAGS="$saved_CXXFLAGS" + esac + done + { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${WARN_CFLAGS} ${WERROR_CFLAGS}" >&5 +$as_echo "${WARN_CFLAGS} ${WERROR_CFLAGS}" >&6; } +fi + + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + TARGET_WORD_SIZE=`sed -n 's,#define BFD_ARCH_SIZE \(.*\)$,\1,p' ../bfd/bfd-in3.h` cat >>confdefs.h <<_ACEOF @@ -9694,7 +11766,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 for ac_config_target in $ac_config_targets do case $ac_config_target in - "support-config.h") CONFIG_HEADERS="$CONFIG_HEADERS support-config.h:config.in" ;; + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h:config.in" ;; "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;; "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;