From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1944) id E9C24385EC49; Wed, 14 Feb 2024 15:35:36 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E9C24385EC49 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1707924936; bh=MvH37TZtAPt0nnC4+LMhYXZqqtZJA1gIT3A2e7BjJXU=; h=From:To:Subject:Date:From; b=MIu+g6yqzq+vA8PObBXpzUlPS162e6dgxclfBUikQfieLByAk8HTfSUkD0Iwl3/N3 pySm+CZ6jx6Avjl1kS5V7YVCGOZpP3iZ4UFeaQaa602euWcy6Fp28DdKrbhNkz6Mdu df6qFVJZWh8GYZZSCUFwgwF3jD40uapVIZo+ZR6w= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Szabolcs Nagy To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/vendors/ARM/heads/gcs-13)] libgcc: aarch64: Configure check for .variant_pcs support X-Act-Checkin: gcc X-Git-Author: Szabolcs Nagy X-Git-Refname: refs/vendors/ARM/heads/gcs-13 X-Git-Oldrev: 7796cad75550723638c2b1b9333e1dde4d53040c X-Git-Newrev: 1e49593619dce3e594f41f6fcb80b52f0565405c Message-Id: <20240214153536.E9C24385EC49@sourceware.org> Date: Wed, 14 Feb 2024 15:35:36 +0000 (GMT) List-Id: https://gcc.gnu.org/g:1e49593619dce3e594f41f6fcb80b52f0565405c commit 1e49593619dce3e594f41f6fcb80b52f0565405c Author: Szabolcs Nagy Date: Mon Nov 14 17:14:18 2022 +0000 libgcc: aarch64: Configure check for .variant_pcs support Ideally SME support routines in libgcc are marked as variant PCS symbols so check if as supports the directive. libgcc/ChangeLog: * config.in: Undef HAVE_AS_VARIANT_PCS. * configure: Regenerate. * configure.ac: Check for .variant_pcs. (cherry picked from commit 3ebb591c65b4fbe0cddd23ebc0ca2d9f7aef2cec) Diff: --- libgcc/config.in | 3 +++ libgcc/configure | 39 +++++++++++++++++++++++++++++++++++++++ libgcc/configure.ac | 17 +++++++++++++++++ 3 files changed, 59 insertions(+) diff --git a/libgcc/config.in b/libgcc/config.in index f93c64a00c36..5dd96cdf648c 100644 --- a/libgcc/config.in +++ b/libgcc/config.in @@ -13,6 +13,9 @@ /* Define to 1 if the assembler supports LSE. */ #undef HAVE_AS_LSE +/* Define to 1 if the assembler supports .variant_pcs. */ +#undef HAVE_AS_VARIANT_PCS + /* Define to 1 if the target assembler supports thread-local storage. */ #undef HAVE_CC_TLS diff --git a/libgcc/configure b/libgcc/configure index be5d45f1755c..537fa9836e1f 100755 --- a/libgcc/configure +++ b/libgcc/configure @@ -5620,6 +5620,45 @@ $as_echo "#define HAVE_AS_LSE 1" >>confdefs.h ;; esac + + +case "${target}" in +aarch64*-*-*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking if as supports .variant_pcs" >&5 +$as_echo_n "checking if as supports .variant_pcs... " >&6; } +if ${libgcc_cv_as_variant_pcs+:} false; then : + $as_echo_n "(cached) " >&6 +else + + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ +asm (".variant_pcs foobar"); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libgcc_cv_as_variant_pcs=yes +else + libgcc_cv_as_variant_pcs=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_as_variant_pcs" >&5 +$as_echo "$libgcc_cv_as_variant_pcs" >&6; } + if test x$libgcc_cv_as_variant_pcs = xyes; then + +$as_echo "#define HAVE_AS_VARIANT_PCS 1" >>confdefs.h + + fi + ;; +esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for init priority support" >&5 $as_echo_n "checking for init priority support... " >&6; } if ${libgcc_cv_init_priority+:} false; then : diff --git a/libgcc/configure.ac b/libgcc/configure.ac index 2fc9d5d7c93e..abc398c91e40 100644 --- a/libgcc/configure.ac +++ b/libgcc/configure.ac @@ -648,6 +648,23 @@ changequote([,])dnl esac]) LIBGCC_CHECK_AS_LSE +dnl Check if as supports .variant_pcs. +AC_DEFUN([LIBGCC_CHECK_AS_VARIANT_PCS], [ +case "${target}" in +aarch64*-*-*) + AC_CACHE_CHECK([if as supports .variant_pcs], libgcc_cv_as_variant_pcs, [ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, + [[asm (".variant_pcs foobar");]])], + [libgcc_cv_as_variant_pcs=yes], [libgcc_cv_as_variant_pcs=no]) + ]) + if test x$libgcc_cv_as_variant_pcs = xyes; then + AC_DEFINE(HAVE_AS_VARIANT_PCS, 1, + [Define to 1 if the assembler supports .variant_pcs.]) + fi + ;; +esac]) +LIBGCC_CHECK_AS_VARIANT_PCS + dnl Check if as supports RTM instructions. AC_CACHE_CHECK(for init priority support, libgcc_cv_init_priority, [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,