mirror of git://gcc.gnu.org/git/gcc.git
110 lines
3.0 KiB
Plaintext
110 lines
3.0 KiB
Plaintext
# clang-plugin.m4 -*- Autoconf -*-
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# Check clang plugin file.
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dnl Copyright (C) 2025 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License. As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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dnl
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dnl
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dnl CLANG_PLUGIN_FILE
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dnl (SHELL-CODE_HANDLER)
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dnl
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AC_DEFUN([CLANG_PLUGIN_FILE],[dnl
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AC_CACHE_CHECK([for clang], clang_cv_is_clang, [
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AC_EGREP_CPP(yes, [
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#ifdef __clang__
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yes
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#endif
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], clang_cv_is_clang=yes, clang_cv_is_clang=no)])
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AC_CHECK_TOOL(LLVM_CONFIG, llvm-config)
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plugin_file=
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if test $clang_cv_is_clang = yes; then
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AC_MSG_CHECKING([for clang plugin file])
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plugin_names="LLVMgold.so"
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for plugin in $plugin_names; do
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plugin_file=`${CC} ${CFLAGS} --print-file-name $plugin`
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if test "$plugin_file" != "$plugin"; then
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break;
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fi
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if test -n "${LLVM_CONFIG}"; then
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plugin_file=`${LLVM_CONFIG} --libdir`/$plugin
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if test -f "$plugin_file"; then
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break;
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fi
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fi
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plugin_file=
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done
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if test -z "$plugin_file"; then
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AC_MSG_RESULT([no])
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else
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AC_MSG_RESULT($plugin_file)
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dnl Check if ${AR} $plugin_option rc works.
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AC_CHECK_TOOL(AR, ar)
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if test -z "${AR}"; then
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AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
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fi
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plugin_option="--plugin $plugin_file"
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touch conftest.c
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${AR} $plugin_option rc conftest.a conftest.c
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if test "$?" != 0; then
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AC_MSG_WARN([Failed: $AR $plugin_option rc])
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plugin_file=
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fi
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rm -f conftest.*
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fi
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fi
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$1="$plugin_file"
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])
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dnl
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dnl
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dnl CLANG_PLUGIN_FILE_FOR_TARGET
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dnl (SHELL-CODE_HANDLER)
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dnl
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AC_DEFUN([CLANG_PLUGIN_FILE_FOR_TARGET],[dnl
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COMPILER_FOR_TARGET="${CC_FOR_TARGET}"
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if test x"${COMPILER_FOR_TARGET}" = x"\$(CC)"; then
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COMPILER_FOR_TARGET="$CC"
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fi
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saved_CC="$CC"
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CC="$COMPILER_FOR_TARGET"
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AC_CACHE_CHECK([for clang for target], clang_target_cv_working, [
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AC_TRY_COMPILE([
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#ifndef __clang__
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#error Not clang
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#endif
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],
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[],
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clang_target_cv_working=yes, clang_target_cv_working=no)])
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CC="$saved_CC"
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plugin_file=
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if test $clang_target_cv_working = yes; then
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GCC_TARGET_TOOL(llvm-config, LLVM_CONFIG_FOR_TARGET, LLVM_CONFIG)
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AC_MSG_CHECKING([for clang plugin file for target])
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plugin_names="LLVMgold.so"
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for plugin in $plugin_names; do
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plugin_file=`${COMPILER_FOR_TARGET} ${CFLAGS_FOR_TARGET} --print-file-name $plugin`
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if test "$plugin_file" != "$plugin"; then
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break;
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fi
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if test -n "${LLVM_CONFIG_FOR_TARGET}"; then
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plugin_file=`${LLVM_CONFIG_FOR_TARGET} --libdir`/$plugin
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if test -f "$plugin_file"; then
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break;
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fi
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fi
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plugin_file=
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done
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if test -z "$plugin_file"; then
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AC_MSG_RESULT([no])
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else
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AC_MSG_RESULT($plugin_file)
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fi
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fi
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$1="$plugin_file"
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])
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