diff options
Diffstat (limited to 'erts/aclocal.m4')
-rw-r--r-- | erts/aclocal.m4 | 253 |
1 files changed, 155 insertions, 98 deletions
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4 index 11c311f2c0..86799186fd 100644 --- a/erts/aclocal.m4 +++ b/erts/aclocal.m4 @@ -1,7 +1,7 @@ dnl dnl %CopyrightBegin% dnl -dnl Copyright Ericsson AB 1998-2015. All Rights Reserved. +dnl Copyright Ericsson AB 1998-2016. All Rights Reserved. dnl dnl Licensed under the Apache License, Version 2.0 (the "License"); dnl you may not use this file except in compliance with the License. @@ -74,21 +74,6 @@ AC_ARG_VAR(erl_xcomp_clock_gettime_cpu_time, [clock_gettime() can be used for re AC_ARG_VAR(erl_xcomp_after_morecore_hook, [__after_morecore_hook can track malloc()s core memory usage: yes|no (only used when cross compiling)]) AC_ARG_VAR(erl_xcomp_dlsym_brk_wrappers, [dlsym(RTLD_NEXT, _) brk wrappers can track malloc()s core memory usage: yes|no (only used when cross compiling)]) -dnl Cross compilation variables for OSE -AC_ARG_VAR(erl_xcomp_ose_ldflags_pass1, [Linker flags for the OSE module (pass 1) (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_ldflags_pass2, [Linker flags for the OSE module (pass 2) (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_OSEROOT, [OSE installation root directory (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_STRIP, [Strip utility shipped with the OSE distribution(only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_LM_POST_LINK, [OSE postlink tool (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_LM_SET_CONF, [Sets the configuration for an OSE load module (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_LM_ELF_SIZE, [Prints the section size information for an OSE load module (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_LM_LCF, [OSE load module linker configuration file (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_BEAM_LM_CONF, [BEAM OSE load module default configuration file (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_EPMD_LM_CONF, [EPMD OSE load module default configuration file (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_RUN_ERL_LM_CONF, [run_erl_lm OSE load module default configuration file (only used when cross compiling for OSE)]) -AC_ARG_VAR(erl_xcomp_ose_CONFD, [OSE confd source file]) -AC_ARG_VAR(erl_xcomp_ose_CRT0_LM, [OSE crt0 lm source file]) - ]) AC_DEFUN(ERL_XCOMP_SYSROOT_INIT, @@ -142,18 +127,18 @@ MIXED_MSYS=no AC_MSG_CHECKING(for mixed cygwin or msys and native VC++ environment) if test "X$host" = "Xwin32" -a "x$GCC" != "xyes"; then - if test -x /usr/bin/cygpath; then - CFLAGS="-O2" - MIXED_CYGWIN=yes - AC_MSG_RESULT([Cygwin and VC]) - MIXED_CYGWIN_VC=yes - CPPFLAGS="$CPPFLAGS -DERTS_MIXED_CYGWIN_VC" - elif test -x /usr/bin/msysinfo; then + if test -x /usr/bin/msys-?.0.dll; then CFLAGS="-O2" MIXED_MSYS=yes AC_MSG_RESULT([MSYS and VC]) MIXED_MSYS_VC=yes CPPFLAGS="$CPPFLAGS -DERTS_MIXED_MSYS_VC" + elif test -x /usr/bin/cygpath; then + CFLAGS="-O2" + MIXED_CYGWIN=yes + AC_MSG_RESULT([Cygwin and VC]) + MIXED_CYGWIN_VC=yes + CPPFLAGS="$CPPFLAGS -DERTS_MIXED_CYGWIN_VC" else AC_MSG_RESULT([undeterminable]) AC_MSG_ERROR(Seems to be mixed windows but not with cygwin, cannot handle this!) @@ -503,8 +488,6 @@ AC_CACHE_VAL(ac_cv_sys_ipv6_support, #ifdef __WIN32__ #include <winsock2.h> #include <ws2tcpip.h> -#elif __OSE__ -#error "no ipv6" #else #include <netinet/in.h> #endif], @@ -517,8 +500,6 @@ else #ifdef __WIN32__ #include <winsock2.h> #include <ws2tcpip.h> -#elif __OSE__ -#error "no ipv6" #else #include <netinet/in.h> #endif], @@ -750,8 +731,8 @@ AC_DEFUN(ERL_MONOTONIC_CLOCK, prefer_resolution_clock_gettime_monotonic="$2" ;; *) - check_msg="" - prefer_resolution_clock_gettime_monotonic= + check_msg="custom " + prefer_resolution_clock_gettime_monotonic="$2" ;; esac @@ -940,16 +921,16 @@ AC_DEFUN(ERL_WALL_CLOCK, erl_wall_clock_low_resolution=no erl_wall_clock_id= - case $erl_cv_clock_gettime_wall_$1-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in - *-*-*-win32) + case $1-$erl_cv_clock_gettime_wall_$1-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in + *-*-*-*-win32) erl_wall_clock_func=WindowsAPI erl_wall_clock_low_resolution=yes ;; - no-yes-*-*) + high_resolution-no-yes-*-*) erl_wall_clock_func=mach_clock_get_time erl_wall_clock_id=CALENDAR_CLOCK ;; - CLOCK_*-*-*-*) + *-CLOCK_*-*-*-*) erl_wall_clock_func=clock_gettime erl_wall_clock_id=$erl_cv_clock_gettime_wall_$1 for low_res_id in $low_resolution_clock_gettime_wall; do @@ -959,7 +940,7 @@ AC_DEFUN(ERL_WALL_CLOCK, fi done ;; - no-no-yes-*) + *-no-*-yes-*) erl_wall_clock_func=gettimeofday ;; *) @@ -991,12 +972,6 @@ if test "X$host_os" = "Xwin32"; then THR_LIBS= THR_LIB_NAME=win32_threads THR_LIB_TYPE=win32_threads -elif test "X$host_os" = "Xose"; then - AC_MSG_RESULT(yes) - THR_DEFS="-DOSE_THREADS" - THR_LIBS= - THR_LIB_NAME=ose_threads - THR_LIB_TYPE=ose_threads else AC_MSG_RESULT(no) THR_DEFS= @@ -1472,7 +1447,7 @@ AC_ARG_WITH(with_sparc_memory_order, LM_CHECK_THR_LIB ERL_INTERNAL_LIBS -ERL_MONOTONIC_CLOCK(high_resolution, undefined, no) +ERL_MONOTONIC_CLOCK(try_find_pthread_compatible, CLOCK_HIGHRES CLOCK_MONOTONIC, no) case $erl_monotonic_clock_func in clock_gettime) @@ -1583,22 +1558,9 @@ case "$THR_LIB_NAME" in fi ;; - pthread|ose_threads) - case "$THR_LIB_NAME" in - pthread) - ETHR_THR_LIB_BASE_DIR=pthread - AC_DEFINE(ETHR_PTHREADS, 1, [Define if you have pthreads]) - ;; - ose_threads) - AC_DEFINE(ETHR_OSE_THREADS, 1, - [Define if you have OSE style threads]) - ETHR_THR_LIB_BASE_DIR=ose - AC_CHECK_HEADER(ose_spi/ose_spi.h, - AC_DEFINE(HAVE_OSE_SPI_H, 1, - [Define if you have the "ose_spi/ose_spi.h" header file.])) - ;; - esac - if test "x$THR_LIB_NAME" = "xpthread"; then + pthread) + ETHR_THR_LIB_BASE_DIR=pthread + AC_DEFINE(ETHR_PTHREADS, 1, [Define if you have pthreads]) case $host_os in openbsd*) # The default stack size is insufficient for our needs @@ -1657,7 +1619,6 @@ case "$THR_LIB_NAME" in *) ;; esac - fi dnl We sometimes need ETHR_DEFS in order to find certain headers dnl (at least for pthread.h on osf1). saved_cppflags="$CPPFLAGS" @@ -1702,7 +1663,6 @@ case "$THR_LIB_NAME" in dnl dnl Check for functions dnl - if test "x$THR_LIB_NAME" = "xpthread"; then AC_CHECK_FUNC(pthread_spin_lock, \ [ethr_have_native_spinlock=yes \ AC_DEFINE(ETHR_HAVE_PTHREAD_SPIN_LOCK, 1, \ @@ -1922,8 +1882,6 @@ case "$THR_LIB_NAME" in esac CFLAGS=$old_CFLAGS - fi ## test "x$THR_LIB_NAME" = "xpthread" - if test "X$disable_native_ethr_impls" = "Xyes"; then ethr_have_native_atomics=no else @@ -2117,63 +2075,159 @@ esac case "$GCC-$host_cpu" in yes-i86pc | yes-i*86 | yes-x86_64 | yes-amd64) + + if test $ac_cv_sizeof_void_p = 4; then + dw_cmpxchg="cmpxchg8b" + else + dw_cmpxchg="cmpxchg16b" + fi + gcc_dw_cmpxchg_asm=no - AC_MSG_CHECKING([for gcc double word cmpxchg asm support]) - AC_TRY_COMPILE([], + gcc_pic_dw_cmpxchg_asm=no + gcc_cflags_pic=no + gcc_cmpxchg8b_pic_no_clobber_ebx=no + gcc_cmpxchg8b_pic_no_clobber_ebx_register_shortage=no + + save_CFLAGS="$CFLAGS" + + # Check if it works out of the box using passed CFLAGS + # and with -fPIC added to CFLAGS if the passed CFLAGS + # doesn't trigger position independent code + pic_cmpxchg=unknown + while true; do + + case $pic_cmpxchg in + yes) pic_text="pic ";; + *) pic_text="";; + esac + + AC_MSG_CHECKING([for gcc $pic_text$dw_cmpxchg plain asm support]) + + plain_cmpxchg=no + AC_TRY_COMPILE([], [ char xchgd; long new[2], xchg[2], *p; __asm__ __volatile__( -#if ETHR_SIZEOF_PTR == 4 && defined(__PIC__) && __PIC__ - "pushl %%ebx\n\t" - "movl %8, %%ebx\n\t" -#endif #if ETHR_SIZEOF_PTR == 4 "lock; cmpxchg8b %0\n\t" #else "lock; cmpxchg16b %0\n\t" #endif "setz %3\n\t" -#if ETHR_SIZEOF_PTR == 4 && defined(__PIC__) && __PIC__ - "popl %%ebx\n\t" -#endif - : "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=c"(xchgd) - : "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "3"(new[1]), -#if ETHR_SIZEOF_PTR == 4 && defined(__PIC__) && __PIC__ - "r"(new[0]) -#else - "b"(new[0]) -#endif + : "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=q"(xchgd) + : "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "c"(new[1]), "b"(new[0]) : "cc", "memory"); + ], + [plain_cmpxchg=yes]) + + AC_MSG_RESULT([$plain_cmpxchg]) + if test $pic_cmpxchg = yes; then + gcc_pic_dw_cmpxchg_asm=$plain_cmpxchg + break + fi + + gcc_dw_cmpxchg_asm=$plain_cmpxchg + + # If not already compiling to position independent + # code add -fPIC to CFLAGS and do it again. This + # since we want also want to know how to compile + # to position independent code since this might + # cause problems with the use of the EBX register + # as input to the asm on 32-bit x86 and old gcc + # compilers (gcc vsn < 5). + + AC_TRY_COMPILE([], + [ +#if !defined(__PIC__) || !__PIC__ +# error no pic +#endif ], - [gcc_dw_cmpxchg_asm=yes]) - if test $gcc_dw_cmpxchg_asm = no && test $ac_cv_sizeof_void_p = 4; then + [pic_cmpxchg=yes + gcc_cflags_pic=yes], + [pic_cmpxchg=no]) + + if test $pic_cmpxchg = yes; then + gcc_pic_dw_cmpxchg_asm=$gcc_dw_cmpxchg_asm + break + fi + + CFLAGS="$save_CFLAGS -fPIC" + pic_cmpxchg=yes + + done + + if test $gcc_pic_dw_cmpxchg_asm = no && test $ac_cv_sizeof_void_p = 4; then + + AC_MSG_CHECKING([for gcc pic cmpxchg8b asm support with EBX workaround]) + + # Check if we can work around it by managing the ebx + # register explicitly in the asm... + AC_TRY_COMPILE([], + [ + char xchgd; + long new[2], xchg[2], *p; + __asm__ __volatile__( + "pushl %%ebx\n\t" + "movl %8, %%ebx\n\t" + "lock; cmpxchg8b %0\n\t" + "setz %3\n\t" + "popl %%ebx\n\t" + : "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=q"(xchgd) + : "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "c"(new[1]), "r"(new[0]) + : "cc", "memory"); + ], + [gcc_pic_dw_cmpxchg_asm=yes + gcc_cmpxchg8b_pic_no_clobber_ebx=yes]) + + AC_MSG_RESULT([$gcc_pic_dw_cmpxchg_asm]) + + if test $gcc_pic_dw_cmpxchg_asm = no; then + + AC_MSG_CHECKING([for gcc pic cmpxchg8b asm support with EBX and register shortage workarounds]) + # If no optimization is enabled we sometimes get a + # register shortage. Check if we can work around + # this... + + AC_TRY_COMPILE([], [ char xchgd; long new[2], xchg[2], *p; -#if !defined(__PIC__) || !__PIC__ -# error nope -#endif __asm__ __volatile__( - "pushl %%ebx\n\t" - "movl (%7), %%ebx\n\t" - "movl 4(%7), %%ecx\n\t" - "lock; cmpxchg8b %0\n\t" - "setz %3\n\t" - "popl %%ebx\n\t" - : "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=c"(xchgd) - : "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "3"(new) + "pushl %%ebx\n\t" + "movl (%7), %%ebx\n\t" + "movl 4(%7), %%ecx\n\t" + "lock; cmpxchg8b %0\n\t" + "setz %3\n\t" + "popl %%ebx\n\t" + : "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=c"(xchgd) + : "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "r"(new) : "cc", "memory"); ], - [gcc_dw_cmpxchg_asm=yes]) - if test "$gcc_dw_cmpxchg_asm" = "yes"; then - AC_DEFINE(ETHR_CMPXCHG8B_REGISTER_SHORTAGE, 1, [Define if you get a register shortage with cmpxchg8b and position independent code]) + [gcc_pic_dw_cmpxchg_asm=yes + gcc_cmpxchg8b_pic_no_clobber_ebx=yes + gcc_cmpxchg8b_pic_no_clobber_ebx_register_shortage=yes]) + + AC_MSG_RESULT([$gcc_pic_dw_cmpxchg_asm]) fi + + if test $gcc_cflags_pic = yes; then + gcc_dw_cmpxchg_asm=$gcc_pic_dw_cmpxchg_asm + fi + + fi + + CFLAGS="$save_CFLAGS" + + if test "$gcc_cmpxchg8b_pic_no_clobber_ebx" = "yes"; then + AC_DEFINE(ETHR_CMPXCHG8B_PIC_NO_CLOBBER_EBX, 1, [Define if gcc wont let you clobber ebx with cmpxchg8b and position independent code]) + fi + if test "$gcc_cmpxchg8b_pic_no_clobber_ebx_register_shortage" = "yes"; then + AC_DEFINE(ETHR_CMPXCHG8B_REGISTER_SHORTAGE, 1, [Define if you get a register shortage with cmpxchg8b and position independent code]) fi - AC_MSG_RESULT([$gcc_dw_cmpxchg_asm]) if test "$gcc_dw_cmpxchg_asm" = "yes"; then AC_DEFINE(ETHR_GCC_HAVE_DW_CMPXCHG_ASM_SUPPORT, 1, [Define if you use a gcc that supports the double word cmpxchg instruction]) fi;; @@ -2219,10 +2273,10 @@ AS_HELP_STRING([--with-clock-gettime-monotonic-id=CLOCKID], [specify clock id to use with clock_gettime() for monotonic time)])) AC_ARG_ENABLE(prefer-elapsed-monotonic-time-during-suspend, - AS_HELP_STRING([--enable-prefer-elapsed-monotonic-time-during-suspend], - [Prefer an OS monotonic time source with elapsed time during suspend]) - AS_HELP_STRING([--disable-prefer-elapsed-monotonic-time-during-suspend], - [Do not prefer an OS monotonic time source with elapsed time during suspend]), +AS_HELP_STRING([--enable-prefer-elapsed-monotonic-time-during-suspend], + [Prefer an OS monotonic time source with elapsed time during suspend]) +AS_HELP_STRING([--disable-prefer-elapsed-monotonic-time-during-suspend], + [Do not prefer an OS monotonic time source with elapsed time during suspend]), [ case "$enableval" in yes) prefer_elapsed_monotonic_time_during_suspend=yes ;; *) prefer_elapsed_monotonic_time_during_suspend=no ;; @@ -2296,6 +2350,9 @@ case "$erl_wall_clock_func-$erl_wall_clock_id-$with_clock_gettime_realtime_id" i esac case $erl_wall_clock_func in + none) + AC_MSG_ERROR([No wall clock source found]) + ;; mach_clock_get_time) AC_DEFINE(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME, [1], [Define if you want to implement erts_os_system_time() using mach clock_get_time()]) ;; |