https://gcc.gnu.org/g:8bff046fe7394071ee7657b0fc8004e84e28765f
commit r17-5284-g8bff046fe7394071ee7657b0fc8004e84e28765f Author: Sam James <[email protected]> Date: Sun Oct 11 20:00:01 2026 +0100 libitm: drop big-endian check Unused since r0-113237-g79b1edb6b5142f. libitm/ChangeLog: PR bootstrap/112422 * config.h.in: Regenerate. * configure: Regenerate. * configure.ac: Drop AC_C_BIGENDIAN and associated hack. Diff: --- libitm/config.h.in | 19 ----- libitm/configure | 228 ---------------------------------------------------- libitm/configure.ac | 7 -- 3 files changed, 254 deletions(-) diff --git a/libitm/config.h.in b/libitm/config.h.in index 8f84097d7322..5fa27eef1599 100644 --- a/libitm/config.h.in +++ b/libitm/config.h.in @@ -1,8 +1,5 @@ /* config.h.in. Generated from configure.ac by autoheader. */ -/* Define if building universal (internal helper macro) */ -#undef AC_APPLE_UNIVERSAL_BUILD - /* Define to 1 if the target supports 64-bit __sync_*_compare_and_swap */ #undef HAVE_64BIT_SYNC_BUILTINS @@ -150,19 +147,3 @@ /* Version number of package */ #undef VERSION - -/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most - significant byte first (like Motorola and SPARC, unlike Intel). */ -#if defined AC_APPLE_UNIVERSAL_BUILD -# if defined __BIG_ENDIAN__ -# define WORDS_BIGENDIAN 1 -# endif -#else -# ifndef WORDS_BIGENDIAN -# undef WORDS_BIGENDIAN -# endif -#endif - -#ifndef WORDS_BIGENDIAN -#define WORDS_BIGENDIAN 0 -#endif diff --git a/libitm/configure b/libitm/configure index 60a75c4a5d4a..9014085a00c6 100755 --- a/libitm/configure +++ b/libitm/configure @@ -16574,233 +16574,6 @@ $as_echo "#define HAVE_MMAP_ANON 1" >>confdefs.h fi - { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5 -$as_echo_n "checking whether byte ordering is bigendian... " >&6; } -if ${ac_cv_c_bigendian+:} false; then : - $as_echo_n "(cached) " >&6 -else - ac_cv_c_bigendian=unknown - # See if we're dealing with a universal compiler. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#ifndef __APPLE_CC__ - not a universal capable compiler - #endif - typedef int dummy; - -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - - # Check for potential -arch flags. It is not universal unless - # there are at least two -arch flags with different values. - ac_arch= - ac_prev= - for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do - if test -n "$ac_prev"; then - case $ac_word in - i?86 | x86_64 | ppc | ppc64) - if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then - ac_arch=$ac_word - else - ac_cv_c_bigendian=universal - break - fi - ;; - esac - ac_prev= - elif test "x$ac_word" = "x-arch"; then - ac_prev=arch - fi - done -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext - if test $ac_cv_c_bigendian = unknown; then - # See if sys/param.h defines the BYTE_ORDER macro. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <sys/types.h> - #include <sys/param.h> - -int -main () -{ -#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \ - && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \ - && LITTLE_ENDIAN) - bogus endian macros - #endif - - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - # It does; now see whether it defined to BIG_ENDIAN or not. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <sys/types.h> - #include <sys/param.h> - -int -main () -{ -#if BYTE_ORDER != BIG_ENDIAN - not big endian - #endif - - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - ac_cv_c_bigendian=yes -else - ac_cv_c_bigendian=no -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext - fi - if test $ac_cv_c_bigendian = unknown; then - # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris). - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <limits.h> - -int -main () -{ -#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN) - bogus endian macros - #endif - - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - # It does; now see whether it defined to _BIG_ENDIAN or not. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <limits.h> - -int -main () -{ -#ifndef _BIG_ENDIAN - not big endian - #endif - - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - ac_cv_c_bigendian=yes -else - ac_cv_c_bigendian=no -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext - fi - if test $ac_cv_c_bigendian = unknown; then - # Compile a test program. - if test "$cross_compiling" = yes; then : - # Try to guess by grepping values from an object file. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -short int ascii_mm[] = - { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 }; - short int ascii_ii[] = - { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 }; - int use_ascii (int i) { - return ascii_mm[i] + ascii_ii[i]; - } - short int ebcdic_ii[] = - { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 }; - short int ebcdic_mm[] = - { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 }; - int use_ebcdic (int i) { - return ebcdic_mm[i] + ebcdic_ii[i]; - } - extern int foo; - -int -main () -{ -return use_ascii (foo) == use_ebcdic (foo); - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then - ac_cv_c_bigendian=yes - fi - if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then - if test "$ac_cv_c_bigendian" = unknown; then - ac_cv_c_bigendian=no - else - # finding both strings is unlikely to happen, but who knows? - ac_cv_c_bigendian=unknown - fi - fi -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -$ac_includes_default -int -main () -{ - - /* Are we little or big endian? From Harbison&Steele. */ - union - { - long int l; - char c[sizeof (long int)]; - } u; - u.l = 1; - return u.c[sizeof (long int) - 1] == 1; - - ; - return 0; -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - ac_cv_c_bigendian=no -else - ac_cv_c_bigendian=yes -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - - fi -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5 -$as_echo "$ac_cv_c_bigendian" >&6; } - case $ac_cv_c_bigendian in #( - yes) - $as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h -;; #( - no) - ;; #( - universal) - -$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h - - ;; #( - *) - as_fn_error $? "unknown endianness - presetting ac_cv_c_bigendian=no (or yes) will help" "$LINENO" 5 ;; - esac - -# I don't like the default behaviour of WORDS_BIGENDIAN undefined for LE. - - # Check to see if -pthread or -lpthread is needed. Prefer the former. # In case the pthread.h system header is not found, this test will fail. XPCFLAGS="" @@ -18578,7 +18351,6 @@ if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined. Usually this means the macro was only invoked conditionally." "$LINENO" 5 fi - if test -z "${HAVE_HWCAP_TRUE}" && test -z "${HAVE_HWCAP_FALSE}"; then as_fn_error $? "conditional \"HAVE_HWCAP\" was never defined. Usually this means the macro was only invoked conditionally." "$LINENO" 5 diff --git a/libitm/configure.ac b/libitm/configure.ac index a9fe2d5df7e4..ecc651de72af 100644 --- a/libitm/configure.ac +++ b/libitm/configure.ac @@ -172,13 +172,6 @@ GCC_HEADER_STDINT(gstdint.h) GCC_AC_FUNC_MMAP_BLACKLIST -AC_C_BIGENDIAN -# I don't like the default behaviour of WORDS_BIGENDIAN undefined for LE. -AH_BOTTOM( -[#ifndef WORDS_BIGENDIAN -#define WORDS_BIGENDIAN 0 -#endif]) - # Check to see if -pthread or -lpthread is needed. Prefer the former. # In case the pthread.h system header is not found, this test will fail. XPCFLAGS=""
