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# GHC_TABLES_NEXT_TO_CODE
# --------------------------------
# Do a build with tables next to code?
#
# Whether the target architecture supports placing info tables
# directly before the entry code (see TABLES_NEXT_TO_CODE in the RTS).
# Whether we actually compile for TABLES_NEXT_TO_CODE depends on
# whether we're building unregisterised code or not, which may be
# decided by options to the compiler later.
#
# See https://gitlab.haskell.org/ghc/ghc/wikis/commentary/rts/storage/heap-objects#tables_next_to_code
#
AC_DEFUN([GHC_TABLES_NEXT_TO_CODE],
[
AC_REQUIRE([GHC_UNREGISTERISED])
AC_MSG_CHECKING(whether target supports tables next to code)
case "$Unregisterised" in
NO)
case "$TargetArch" in
ia64|powerpc64|powerpc64le|s390x|wasm32)
TablesNextToCodeDefault=NO
AC_MSG_RESULT([no])
;;
*)
TablesNextToCodeDefault=YES
AC_MSG_RESULT([yes])
;;
esac
;;
YES)
TablesNextToCodeDefault=NO
AC_MSG_RESULT([no])
;;
esac
FP_DEFAULT_CHOICE_OVERRIDE_CHECK(
[tables-next-to-code],
[tables next to code],
[tables apart from code],
[TablesNextToCode],
[Build a tool chain with info tables laid out next to code (enabled by default when using the registerised ABI, on platforms that support it)])
])
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