1 dnl Copyright (C) 1997-2024 Free Software Foundation, Inc. 2 dnl 3 dnl This program is free software; you can redistribute it and/or modify 4 dnl it under the terms of the GNU General Public License as published by 5 dnl the Free Software Foundation; either version 3 of the License, or 6 dnl (at your option) any later version. 7 dnl 8 dnl This program is distributed in the hope that it will be useful, 9 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 10 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 dnl GNU General Public License for more details. 12 dnl 13 dnl You should have received a copy of the GNU General Public License 14 dnl along with this program. If not, see <http://www.gnu.org/licenses/>. 15 dnl 16 dnl Setup the toolchain variables. 17 AC_DEFUN([SIM_AC_TOOLCHAIN], 18 [dnl 19 AC_CANONICAL_SYSTEM 20 AC_REQUIRE([AC_PROG_CC]) 21 AC_REQUIRE([AC_PROG_CPP]) 22 AC_C_BIGENDIAN 23 AC_ARG_PROGRAM 24 AC_PROG_INSTALL 25 26 AC_CHECK_TOOL(DTC, dtc) 27 28 dnl Setup toolchain settings for build-time tools.. 29 if test "x$cross_compiling" = "xno"; then 30 : "${AR_FOR_BUILD:=\$(AR)}" 31 : "${CC_FOR_BUILD:=\$(CC)}" 32 : "${RANLIB_FOR_BUILD:=\$(RANLIB)}" 33 : "${CFLAGS_FOR_BUILD:=\$(CFLAGS)}" 34 : "${CPPFLAGS_FOR_BUILD:=\$(CPPFLAGS)}" 35 : "${LDFLAGS_FOR_BUILD:=\$(LDFLAGS)}" 36 else 37 : "${AR_FOR_BUILD:=ar}" 38 : "${CC_FOR_BUILD:=gcc}" 39 : "${RANLIB_FOR_BUILD:=ranlib}" 40 : "${CFLAGS_FOR_BUILD:=-g -O}" 41 : "${CPPFLAGS_FOR_BUILD:=}" 42 : "${LDLFAGS_FOR_BUILD:=}" 43 fi 44 AC_SUBST(AR_FOR_BUILD) 45 AC_SUBST(CC_FOR_BUILD) 46 AC_SUBST(RANLIB_FOR_BUILD) 47 AC_SUBST(CFLAGS_FOR_BUILD) 48 AC_SUBST(CPPFLAGS_FOR_BUILD) 49 AC_SUBST(LDFLAGS_FOR_BUILD) 50 51 AC_SUBST(CFLAGS) 52 AC_CHECK_TOOL(AR, ar) 53 AC_PROG_RANLIB 54 PKG_PROG_PKG_CONFIG 55 56 # Require C11 or newer. Autoconf-2.70 provides ac_cv_prog_cc_c11 when using 57 # AC_PROG_CC, but we're still using Autoconf-2.69, and the newest it understands 58 # is C99. So handle it ourselves. 59 m4_version_prereq([2.70], [AC_MSG_ERROR([clean this up!])], [:]) 60 C_DIALECT= 61 AC_MSG_CHECKING([whether C11 is supported by default]) 62 AC_COMPILE_IFELSE([AC_LANG_SOURCE([ 63 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L 64 # error "C11 support not found" 65 #endif 66 ])], [AC_MSG_RESULT([yes])], [ 67 AC_MSG_RESULT([no]) 68 AC_MSG_CHECKING([for -std=c11 support]) 69 ac_save_CC="$CC" 70 CC="$CC -std=c11" 71 AC_COMPILE_IFELSE([AC_LANG_SOURCE([ 72 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L 73 # error "C11 support not found" 74 #endif 75 ])], [ 76 AC_MSG_RESULT([yes]) 77 CC="$ac_save_CC" 78 C_DIALECT="-std=c11" 79 ], [AC_MSG_ERROR([C11 is required])])]) 80 AC_SUBST(C_DIALECT) 81 ]) 82 dnl 83 84 AC_DEFUN([SIM_AC_CHECK_TOOLCHAIN_FOR_PRIMARY_TARGET], 85 [dnl 86 GCC_TARGET_TOOL([cc], [CC_FOR_TARGET], [CC], [${target_alias}-gcc]) 87 GCC_TARGET_TOOL([as], [AS_FOR_TARGET], [AS], [\$(abs_builddir)/../gas/as-new]) 88 GCC_TARGET_TOOL([ld], [LD_FOR_TARGET], [LD], [\$(abs_builddir)/../ld/ld-new]) 89 ]) 90 91 SIM_TOOLCHAIN_VARS= 92 AC_SUBST(SIM_TOOLCHAIN_VARS) 93 AC_DEFUN([_SIM_AC_TOOLCHAIN_FOR_TARGET], 94 [dnl 95 AC_REQUIRE([SIM_AC_CHECK_TOOLCHAIN_FOR_PRIMARY_TARGET]) 96 AC_ARG_VAR(AS_FOR_TARGET_$2, [Assembler for $1 tests]) 97 AC_ARG_VAR(LD_FOR_TARGET_$2, [Linker for $1 tests]) 98 AC_ARG_VAR(CC_FOR_TARGET_$2, [C compiler for $1 tests]) 99 m4_bmatch($1, [example-], [dnl 100 : "${AS_FOR_TARGET_$2:=\$(AS_FOR_TARGET)}" 101 : "${LD_FOR_TARGET_$2:=\$(LD_FOR_TARGET)}" 102 : "${CC_FOR_TARGET_$2:=\$(CC)}" 103 ], [dnl 104 AS_IF([test "$SIM_PRIMARY_TARGET" = "$1"], [dnl 105 : "${AS_FOR_TARGET_$2:=\$(AS_FOR_TARGET)}" 106 : "${LD_FOR_TARGET_$2:=\$(LD_FOR_TARGET)}" 107 : "${CC_FOR_TARGET_$2:=\$(CC_FOR_TARGET)}" 108 ]) 109 ]) 110 AS_VAR_APPEND([SIM_TOOLCHAIN_VARS], [" AS_FOR_TARGET_$2 LD_FOR_TARGET_$2 CC_FOR_TARGET_$2"]) 111 ]) 112 AC_DEFUN([SIM_AC_TOOLCHAIN_FOR_TARGET], 113 [_SIM_AC_TOOLCHAIN_FOR_TARGET($1, m4_toupper(m4_translit($1, [-], [_])))]) 114
Indexes created Wed Mar 04 15:26:31 UTC 2026