mirror of
https://github.com/php/php-src.git
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7625f972db
Apparently, the presence of `cpuid.h` is not necessarily sufficient to guarantee the availability of `__cpuid_count()`. We therefore test for the latter explicitly.
617 lines
14 KiB
Plaintext
617 lines
14 KiB
Plaintext
dnl
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dnl This file contains Zend specific autoconf functions.
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dnl
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AC_DEFUN([LIBZEND_CHECK_INT_TYPE],[
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AC_MSG_CHECKING(for $1)
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_INTTYPES_H
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#include <inttypes.h>
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#elif HAVE_STDINT_H
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#include <stdint.h>
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#endif]],
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[[if (($1 *) 0)
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return 0;
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if (sizeof ($1))
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return 0;
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]])],[
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AC_DEFINE_UNQUOTED([HAVE_]translit($1,a-z_-,A-Z__), 1,[Define if $1 type is present. ])
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AC_MSG_RESULT(yes)
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], [AC_MSG_RESULT(no)
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])dnl
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])
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AC_DEFUN([LIBZEND_BASIC_CHECKS],[
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AC_REQUIRE([AC_PROG_YACC])
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AC_REQUIRE([AC_PROG_CC])
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AC_REQUIRE([AC_PROG_CC_C_O])
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AC_REQUIRE([AC_HEADER_STDC])
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LIBZEND_BISON_CHECK
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dnl Ugly hack to get around a problem with gcc on AIX.
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if test "$CC" = "gcc" -a "$ac_cv_prog_cc_g" = "yes" -a \
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"`uname -sv`" = "AIX 4"; then
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CFLAGS=`echo $CFLAGS | sed -e 's/-g//'`
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fi
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dnl Hack to work around a Mac OS X cpp problem
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dnl Known versions needing this workaround are 5.3 and 5.4
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if test "$ac_cv_prog_gcc" = "yes" -a "`uname -s`" = "Rhapsody"; then
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CPPFLAGS="$CPPFLAGS -traditional-cpp"
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fi
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AC_CHECK_HEADERS(
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inttypes.h \
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stdint.h \
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limits.h \
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malloc.h \
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string.h \
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unistd.h \
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stdarg.h \
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sys/types.h \
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sys/time.h \
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signal.h \
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unix.h \
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stdlib.h \
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cpuid.h \
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dlfcn.h)
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AC_TYPE_SIZE_T
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AC_DEFUN([LIBZEND_LIBDL_CHECKS],[
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AC_CHECK_LIB(dl, dlopen, [LIBS="-ldl $LIBS"])
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AC_CHECK_FUNC(dlopen,[AC_DEFINE(HAVE_LIBDL, 1,[ ])])
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])
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AC_DEFUN([LIBZEND_DLSYM_CHECK],[
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dnl
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dnl Ugly hack to check if dlsym() requires a leading underscore in symbol name.
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dnl
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AC_MSG_CHECKING([whether dlsym() requires a leading underscore in symbol names])
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_LT_AC_TRY_DLOPEN_SELF([
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AC_MSG_RESULT(no)
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], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(DLSYM_NEEDS_UNDERSCORE, 1, [Define if dlsym() requires a leading underscore in symbol names. ])
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], [
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AC_MSG_RESULT(no)
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], [])
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])
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dnl This is required for QNX and may be some BSD derived systems
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AC_CHECK_TYPE( uint, unsigned int )
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AC_CHECK_TYPE( ulong, unsigned long )
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dnl Check if int32_t and uint32_t are defined
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LIBZEND_CHECK_INT_TYPE(int32_t)
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LIBZEND_CHECK_INT_TYPE(uint32_t)
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dnl Checks for library functions.
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AC_FUNC_VPRINTF
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AC_FUNC_MEMCMP
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AC_FUNC_ALLOCA
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AC_CHECK_FUNCS(memcpy strdup getpid kill strtod strtol finite fpclass sigsetjmp)
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AC_ZEND_BROKEN_SPRINTF
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AC_CHECK_DECLS([isfinite, isnan, isinf], [], [], [[#include <math.h>]])
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ZEND_FP_EXCEPT
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ZEND_CHECK_FLOAT_PRECISION
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dnl test whether double cast to long preserves least significant bits
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AC_MSG_CHECKING(whether double cast to long preserves least significant bits)
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <limits.h>
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int main()
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{
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if (sizeof(long) == 4) {
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double d = (double) LONG_MIN * LONG_MIN + 2e9;
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if ((long) d == 2e9 && (long) -d == -2e9) {
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exit(0);
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}
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} else if (sizeof(long) == 8) {
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double correct = 18e18 - ((double) LONG_MIN * -2); /* Subtract ULONG_MAX + 1 */
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if ((long) 18e18 == correct) { /* On 64-bit, only check between LONG_MAX and ULONG_MAX */
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exit(0);
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}
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}
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exit(1);
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}
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]])], [
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AC_DEFINE([ZEND_DVAL_TO_LVAL_CAST_OK], 1, [Define if double cast to long preserves least significant bits])
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AC_MSG_RESULT(yes)
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], [
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AC_MSG_RESULT(no)
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], [
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([LIBZEND_ENABLE_DEBUG],[
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AC_ARG_ENABLE(debug,
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[ --enable-debug Compile with debugging symbols],[
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ZEND_DEBUG=$enableval
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],[
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ZEND_DEBUG=no
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])
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])
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AC_DEFUN([LIBZEND_OTHER_CHECKS],[
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AC_ARG_ENABLE(maintainer-zts,
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[ --enable-maintainer-zts Enable thread safety - for code maintainers only!!],[
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ZEND_MAINTAINER_ZTS=$enableval
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],[
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ZEND_MAINTAINER_ZTS=no
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])
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AC_ARG_ENABLE(inline-optimization,
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[ --disable-inline-optimization
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If building zend_execute.lo fails, try this switch],[
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ZEND_INLINE_OPTIMIZATION=$enableval
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],[
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ZEND_INLINE_OPTIMIZATION=yes
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])
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AC_MSG_CHECKING(whether to enable thread-safety)
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AC_MSG_RESULT($ZEND_MAINTAINER_ZTS)
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AC_MSG_CHECKING(whether to enable inline optimization for GCC)
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AC_MSG_RESULT($ZEND_INLINE_OPTIMIZATION)
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AC_MSG_CHECKING(whether to enable Zend debugging)
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AC_MSG_RESULT($ZEND_DEBUG)
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if test "$ZEND_DEBUG" = "yes"; then
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AC_DEFINE(ZEND_DEBUG,1,[ ])
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echo " $CFLAGS" | grep ' -g' >/dev/null || DEBUG_CFLAGS="-g"
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if test "$CFLAGS" = "-g -O2"; then
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CFLAGS=-g
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fi
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test -n "$GCC" && DEBUG_CFLAGS="$DEBUG_CFLAGS -Wall"
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test -n "$GCC" && test "$USE_MAINTAINER_MODE" = "yes" && \
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DEBUG_CFLAGS="$DEBUG_CFLAGS -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations"
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else
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AC_DEFINE(ZEND_DEBUG,0,[ ])
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fi
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test -n "$DEBUG_CFLAGS" && CFLAGS="$CFLAGS $DEBUG_CFLAGS"
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if test "$ZEND_MAINTAINER_ZTS" = "yes"; then
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AC_DEFINE(ZTS,1,[ ])
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CFLAGS="$CFLAGS -DZTS"
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fi
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changequote({,})
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if test -n "$GCC" && test "$ZEND_INLINE_OPTIMIZATION" != "yes"; then
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INLINE_CFLAGS=`echo $ac_n "$CFLAGS $ac_c" | sed s/-O[0-9s]*//`
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else
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INLINE_CFLAGS="$CFLAGS"
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fi
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changequote([,])
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AC_C_INLINE
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AC_SUBST(INLINE_CFLAGS)
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AC_MSG_CHECKING(target system is Darwin)
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if echo "$target" | grep "darwin" > /dev/null; then
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AC_DEFINE([DARWIN], 1, [Define if the target system is darwin])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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dnl test and set the alignment define for ZEND_MM
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dnl this also does the logarithmic test for ZEND_MM.
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AC_MSG_CHECKING(for MM alignment and log values)
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <stdio.h>
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typedef union _mm_align_test {
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void *ptr;
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double dbl;
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long lng;
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} mm_align_test;
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#if (defined (__GNUC__) && __GNUC__ >= 2)
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#define ZEND_MM_ALIGNMENT (__alignof__ (mm_align_test))
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#else
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#define ZEND_MM_ALIGNMENT (sizeof(mm_align_test))
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#endif
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int main()
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{
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int i = ZEND_MM_ALIGNMENT;
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int zeros = 0;
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FILE *fp;
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while (i & ~0x1) {
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zeros++;
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i = i >> 1;
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}
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fp = fopen("conftest.zend", "w");
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fprintf(fp, "%d %d\n", ZEND_MM_ALIGNMENT, zeros);
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fclose(fp);
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exit(0);
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}
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]])], [
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LIBZEND_MM_ALIGN=`cat conftest.zend | cut -d ' ' -f 1`
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LIBZEND_MM_ALIGN_LOG2=`cat conftest.zend | cut -d ' ' -f 2`
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AC_DEFINE_UNQUOTED(ZEND_MM_ALIGNMENT, $LIBZEND_MM_ALIGN, [ ])
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AC_DEFINE_UNQUOTED(ZEND_MM_ALIGNMENT_LOG2, $LIBZEND_MM_ALIGN_LOG2, [ ])
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], [], [
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dnl cross-compile needs something here
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LIBZEND_MM_ALIGN=8
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])
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AC_MSG_RESULT(done)
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dnl test for memory allocation using mmap(MAP_ANON)
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AC_MSG_CHECKING(for memory allocation using mmap(MAP_ANON))
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <stdlib.h>
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#include <stdio.h>
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#ifndef MAP_ANON
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# ifdef MAP_ANONYMOUS
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# define MAP_ANON MAP_ANONYMOUS
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# endif
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#endif
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#ifndef MREMAP_MAYMOVE
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# define MREMAP_MAYMOVE 0
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#endif
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#ifndef MAP_FAILED
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# define MAP_FAILED ((void*)-1)
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#endif
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#define SEG_SIZE (256*1024)
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int main()
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{
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void *seg = mmap(NULL, SEG_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
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if (seg == MAP_FAILED) {
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return 1;
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}
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if (munmap(seg, SEG_SIZE) != 0) {
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return 2;
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}
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return 0;
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}
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]])], [
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AC_DEFINE([HAVE_MEM_MMAP_ANON], 1, [Define if the target system has support for memory allocation using mmap(MAP_ANON)])
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AC_MSG_RESULT(yes)
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], [
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AC_MSG_RESULT(no)
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], [
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dnl cross-compile needs something here
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AC_MSG_RESULT(no)
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])
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dnl test for memory allocation using mmap("/dev/zero")
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AC_MSG_CHECKING(for memory allocation using mmap("/dev/zero"))
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <stdlib.h>
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#include <stdio.h>
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#ifndef MAP_ANON
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# ifdef MAP_ANONYMOUS
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# define MAP_ANON MAP_ANONYMOUS
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# endif
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#endif
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#ifndef MREMAP_MAYMOVE
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# define MREMAP_MAYMOVE 0
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#endif
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#ifndef MAP_FAILED
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# define MAP_FAILED ((void*)-1)
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#endif
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#define SEG_SIZE (256*1024)
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int main()
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{
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int fd;
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void *seg;
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fd = open("/dev/zero", O_RDWR, S_IRUSR | S_IWUSR);
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if (fd < 0) {
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return 1;
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}
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seg = mmap(NULL, SEG_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
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if (seg == MAP_FAILED) {
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return 2;
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}
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if (munmap(seg, SEG_SIZE) != 0) {
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return 3;
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}
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if (close(fd) != 0) {
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return 4;
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}
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return 0;
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}
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]])], [
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AC_DEFINE([HAVE_MEM_MMAP_ZERO], 1, [Define if the target system has support for memory allocation using mmap("/dev/zero")])
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AC_MSG_RESULT(yes)
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], [
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AC_MSG_RESULT(no)
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], [
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dnl cross-compile needs something here
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AC_MSG_RESULT(no)
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])
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AC_CHECK_FUNCS(mremap)
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AC_ARG_ENABLE(zend-signals,
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[ --disable-zend-signals whether to enable zend signal handling],[
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ZEND_SIGNALS=$enableval
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],[
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ZEND_SIGNALS=yes
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])
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AC_CHECK_FUNC(sigaction, [
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AC_DEFINE(HAVE_SIGACTION, 1, [Whether sigaction() is available])
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], [
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ZEND_SIGNALS=no
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])
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if test "$ZEND_SIGNALS" = "yes"; then
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AC_DEFINE(ZEND_SIGNALS, 1, [Use zend signal handling])
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CFLAGS="$CFLAGS -DZEND_SIGNALS"
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fi
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AC_MSG_CHECKING(whether to enable zend signal handling)
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AC_MSG_RESULT($ZEND_SIGNALS)
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])
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AC_MSG_CHECKING(whether /dev/urandom exists)
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if test -r "/dev/urandom" && test -c "/dev/urandom"; then
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AC_DEFINE([HAVE_DEV_URANDOM], 1, [Define if the target system has /dev/urandom device])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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AC_MSG_CHECKING(whether /dev/arandom exists)
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if test -r "/dev/arandom" && test -c "/dev/arandom"; then
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AC_DEFINE([HAVE_DEV_ARANDOM], 1, [Define if the target system has /dev/arandom device])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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AC_ARG_ENABLE(gcc-global-regs,
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[ --disable-gcc-global-regs
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whether to enable GCC global register variables],[
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ZEND_GCC_GLOBAL_REGS=$enableval
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],[
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ZEND_GCC_GLOBAL_REGS=yes
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])
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AC_MSG_CHECKING(for global register variables support)
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if test "$ZEND_GCC_GLOBAL_REGS" != "no"; then
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#if defined(__GNUC__)
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# define ZEND_GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
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#else
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# define ZEND_GCC_VERSION 0
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#endif
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#if defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(i386)
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# define ZEND_VM_FP_GLOBAL_REG "%esi"
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# define ZEND_VM_IP_GLOBAL_REG "%edi"
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#elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__x86_64__)
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# define ZEND_VM_FP_GLOBAL_REG "%r14"
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# define ZEND_VM_IP_GLOBAL_REG "%r15"
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#elif defined(__GNUC__) && ZEND_GCC_VERSION >= 4008 && defined(__powerpc64__)
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# define ZEND_VM_FP_GLOBAL_REG "r28"
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# define ZEND_VM_IP_GLOBAL_REG "r29"
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#elif defined(__IBMC__) && ZEND_GCC_VERSION >= 4002 && defined(__powerpc64__)
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# define ZEND_VM_FP_GLOBAL_REG "r28"
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# define ZEND_VM_IP_GLOBAL_REG "r29"
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#else
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# error "global register variables are not supported"
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#endif
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typedef int (*opcode_handler_t)(void);
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register void *FP __asm__(ZEND_VM_FP_GLOBAL_REG);
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register const opcode_handler_t *IP __asm__(ZEND_VM_IP_GLOBAL_REG);
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int emu(const opcode_handler_t *ip, void *fp) {
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const opcode_handler_t *orig_ip = IP;
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void *orig_fp = FP;
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IP = ip;
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FP = fp;
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while ((*ip)());
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FP = orig_fp;
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IP = orig_ip;
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}
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]], [[
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]])], [
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ZEND_GCC_GLOBAL_REGS=yes
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], [
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ZEND_GCC_GLOBAL_REGS=no
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])
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fi
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if test "$ZEND_GCC_GLOBAL_REGS" = "yes"; then
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AC_DEFINE([HAVE_GCC_GLOBAL_REGS], 1, [Define if the target system has support for global register variables])
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else
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HAVE_GCC_GLOBAL_REGS=no
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fi
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AC_MSG_RESULT($ZEND_GCC_GLOBAL_REGS)
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dnl
|
|
dnl Check if atof() accepts NAN
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dnl
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AC_CACHE_CHECK(whether atof() accepts NAN, ac_cv_atof_accept_nan,[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <math.h>
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#include <stdlib.h>
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#ifdef HAVE_ISNAN
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#define zend_isnan(a) isnan(a)
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#elif defined(HAVE_FPCLASS)
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#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
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#else
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#define zend_isnan(a) 0
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#endif
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int main(int argc, char** argv)
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{
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return zend_isnan(atof("NAN")) ? 0 : 1;
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}
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]])],[
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ac_cv_atof_accept_nan=yes
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],[
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ac_cv_atof_accept_nan=no
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],[
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ac_cv_atof_accept_nan=no
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])])
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|
if test "$ac_cv_atof_accept_nan" = "yes"; then
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AC_DEFINE([HAVE_ATOF_ACCEPTS_NAN], 1, [whether atof() accepts NAN])
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fi
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dnl
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|
dnl Check if atof() accepts INF
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|
dnl
|
|
AC_CACHE_CHECK(whether atof() accepts INF, ac_cv_atof_accept_inf,[
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|
AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <math.h>
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#include <stdlib.h>
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#ifdef HAVE_ISINF
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#define zend_isinf(a) isinf(a)
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#elif defined(INFINITY)
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/* Might not work, but is required by ISO C99 */
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#define zend_isinf(a) (((a)==INFINITY)?1:0)
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#elif defined(HAVE_FPCLASS)
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#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
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#else
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#define zend_isinf(a) 0
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#endif
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int main(int argc, char** argv)
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{
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return zend_isinf(atof("INF")) && zend_isinf(atof("-INF")) ? 0 : 1;
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}
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]])],[
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ac_cv_atof_accept_inf=yes
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],[
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ac_cv_atof_accept_inf=no
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],[
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ac_cv_atof_accept_inf=no
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])])
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if test "$ac_cv_atof_accept_inf" = "yes"; then
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AC_DEFINE([HAVE_ATOF_ACCEPTS_INF], 1, [whether atof() accepts INF])
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fi
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dnl
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dnl Check if HUGE_VAL == INF
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dnl
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AC_CACHE_CHECK(whether HUGE_VAL == INF, ac_cv_huge_val_inf,[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <math.h>
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#include <stdlib.h>
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|
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|
#ifdef HAVE_ISINF
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#define zend_isinf(a) isinf(a)
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#elif defined(INFINITY)
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/* Might not work, but is required by ISO C99 */
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#define zend_isinf(a) (((a)==INFINITY)?1:0)
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#elif defined(HAVE_FPCLASS)
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#define zend_isinf(a) ((fpclass(a) == FP_PINF) || (fpclass(a) == FP_NINF))
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#else
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#define zend_isinf(a) 0
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#endif
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|
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int main(int argc, char** argv)
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{
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return zend_isinf(HUGE_VAL) ? 0 : 1;
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}
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]])],[
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ac_cv_huge_val_inf=yes
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],[
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ac_cv_huge_val_inf=no
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],[
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|
ac_cv_huge_val_inf=yes
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])])
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dnl This is the most probable fallback so we assume yes in case of cross compile.
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if test "$ac_cv_huge_val_inf" = "yes"; then
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AC_DEFINE([HAVE_HUGE_VAL_INF], 1, [whether HUGE_VAL == INF])
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fi
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dnl
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dnl Check if HUGE_VAL + -HUGEVAL == NAN
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dnl
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AC_CACHE_CHECK(whether HUGE_VAL + -HUGEVAL == NAN, ac_cv_huge_val_nan,[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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|
#include <math.h>
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#include <stdlib.h>
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|
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|
#ifdef HAVE_ISNAN
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#define zend_isnan(a) isnan(a)
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#elif defined(HAVE_FPCLASS)
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#define zend_isnan(a) ((fpclass(a) == FP_SNAN) || (fpclass(a) == FP_QNAN))
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#else
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#define zend_isnan(a) 0
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#endif
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|
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|
int main(int argc, char** argv)
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{
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|
#if defined(__sparc__) && !(__GNUC__ >= 3)
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|
/* prevent bug #27830 */
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|
return 1;
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#else
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return zend_isnan(HUGE_VAL + -HUGE_VAL) ? 0 : 1;
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|
#endif
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}
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|
]])],[
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ac_cv_huge_val_nan=yes
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],[
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|
ac_cv_huge_val_nan=no
|
|
],[
|
|
ac_cv_huge_val_nan=yes
|
|
])])
|
|
dnl This is the most probable fallback so we assume yes in case of cross compile.
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|
if test "$ac_cv_huge_val_nan" = "yes"; then
|
|
AC_DEFINE([HAVE_HUGE_VAL_NAN], 1, [whether HUGE_VAL + -HUGEVAL == NAN])
|
|
fi
|
|
|
|
dnl
|
|
dnl Check whether __cpuid_count is available
|
|
dnl
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|
AC_CACHE_CHECK(whether __cpuid_count is available, ac_cv_cpuid_count_available, [
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|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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|
#include <cpuid.h>
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|
]], [[
|
|
unsigned eax, ebx, ecx, edx;
|
|
__cpuid_count(0, 0, eax, ebx, ecx, edx);
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|
]])], [
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|
ac_cv_cpuid_count_available=yes
|
|
], [
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|
ac_cv_cpuid_count_available=no
|
|
])])
|
|
if test "$ac_cv_cpuid_count_available" = "yes"; then
|
|
AC_DEFINE([HAVE_CPUID_COUNT], 1, [whether __cpuid_count is available])
|
|
fi
|