diff options
Diffstat (limited to 'gcc-4.4.3/gcc/configure.ac')
-rw-r--r-- | gcc-4.4.3/gcc/configure.ac | 110 |
1 files changed, 109 insertions, 1 deletions
diff --git a/gcc-4.4.3/gcc/configure.ac b/gcc-4.4.3/gcc/configure.ac index 1ee190a76..e83b6cad5 100644 --- a/gcc-4.4.3/gcc/configure.ac +++ b/gcc-4.4.3/gcc/configure.ac @@ -1184,7 +1184,115 @@ fi # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. CFLAGS="$saved_CFLAGS" -gcc_AC_INITFINI_ARRAY +# Check if .init_array can be used with .ctors. +AC_ARG_ENABLE(initfini-array, + [ --enable-initfini-array use .init_array/.fini_array sections], + [], [ +AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, + gcc_cv_initfini_array, [dnl + if test "x${build}" = "x${target}" ; then + AC_RUN_IFELSE([AC_LANG_SOURCE([ +extern void abort (); +static int count; + +static void +init1005 () +{ + if (count != 0) + abort (); + count = 1005; +} +void (*const init_array1005[]) () + __attribute__ ((section (".init_array.01005"), aligned (sizeof (void *)))) + = { init1005 }; +static void +fini1005 () +{ + if (count != 1005) + abort (); +} +void (*const fini_array1005[]) () + __attribute__ ((section (".fini_array.01005"), aligned (sizeof (void *)))) + = { fini1005 }; + +static void +ctor1007 () +{ + if (count != 1005) + abort (); + count = 1007; +} +void (*const ctors1007[]) () + __attribute__ ((section (".ctors.64528"), aligned (sizeof (void *)))) + = { ctor1007 }; +static void +dtor1007 () +{ + if (count != 1007) + abort (); + count = 1005; +} +void (*const dtors1007[]) () + __attribute__ ((section (".dtors.64528"), aligned (sizeof (void *)))) + = { dtor1007 }; + +static void +init65530 () +{ + if (count != 1007) + abort (); + count = 65530; +} +void (*const init_array65530[]) () + __attribute__ ((section (".init_array.65530"), aligned (sizeof (void *)))) + = { init65530 }; +static void +fini65530 () +{ + if (count != 65530) + abort (); + count = 1007; +} +void (*const fini_array65530[]) () + __attribute__ ((section (".fini_array.65530"), aligned (sizeof (void *)))) + = { fini65530 }; + +static void +ctor65535 () +{ + if (count != 65530) + abort (); + count = 65535; +} +void (*const ctors65535[]) () + __attribute__ ((section (".ctors"), aligned (sizeof (void *)))) + = { ctor65535 }; +static void +dtor65535 () +{ + if (count != 65535) + abort (); + count = 65530; +} +void (*const dtors65535[]) () + __attribute__ ((section (".dtors"), aligned (sizeof (void *)))) + = { dtor65535 }; + +int +main () +{ + return 0; +}])], + [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no], + [gcc_cv_initfini_array=no]) + else + gcc_cv_initfini_array=no + enable_initfini_array=$gcc_cv_initfini_array +]) +if test $enable_initfini_array = yes; then + AC_DEFINE(HAVE_INITFINI_ARRAY, 1, + [Define .init_array/.fini_array sections are available and working.]) +fi # mkdir takes a single argument on some systems. gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG |