mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-09-22 14:25:56 +08:00
New files missed in previous merge.
This commit is contained in:
Joel Sherrill
@@ -0,0 +1,42 @@
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dnl $Id$
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dnl
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dnl Set target tools
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dnl
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dnl 98/02/12 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
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dnl
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AC_DEFUN(RTEMS_CANONICALIZE_TOOLS,
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[AC_REQUIRE([RTEMS_PROG_CC])dnl
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if test "$rtems_cv_prog_gcc" = "yes" ; then
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dnl We are using gcc, now ask it about its tools
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dnl Necessary if gcc was configured to use the target's native tools
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dnl or uses prefixes for gnutools (e.g. gas instead of as)
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AR_FOR_TARGET=`$CC_FOR_TARGET --print-prog-name=ar`
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AS_FOR_TARGET=`$CC_FOR_TARGET --print-prog-name=as`
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LD_FOR_TARGET=`$CC_FOR_TARGET --print-prog-name=ld`
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NM_FOR_TARGET=`$CC_FOR_TARGET --print-prog-name=nm`
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RANLIB_FOR_TARGET=`$CC_FOR_TARGET --print-prog-name=ranlib`
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fi
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dnl check whether the tools exist
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dnl FIXME: What shall be done if they don't exist?
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dnl NOTE: CC_FOR_TARGET should always be valid at this point,
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dnl cf. RTEMS_PROG_CC
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AC_PATH_PROG(CC_FOR_TARGET,"$program_prefix"gcc,no)
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dnl FIXME: This may fail if the compiler has not been recognized as gcc
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dnl and uses tools with different names
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AC_PATH_PROG(AR_FOR_TARGET,"$program_prefix"ar,no)
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AC_PATH_PROG(AS_FOR_TARGET,"$program_prefix"as,no)
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AC_PATH_PROG(NM_FOR_TARGET,"$program_prefix"nm,no)
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AC_PATH_PROG(LD_FOR_TARGET,"$program_prefix"ld,no)
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dnl NOTE: This is doubtful, but should not disturb all current rtems'
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dnl targets (remark: solaris fakes ranlib!!)
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AC_PATH_PROG(RANLIB_FOR_TARGET,"$program_prefix"ranlib,no)
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dnl NOTE: These may not be available, if not using gnutools
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AC_PATH_PROG(OBJCOPY_FOR_TARGET,"$program_prefix"objcopy,no)
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AC_PATH_PROG(SIZE_FOR_TARGET,"$program_prefix"size,no)
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])
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@@ -0,0 +1,20 @@
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dnl
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dnl $Id$
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dnl
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dnl Check whether the target compiler accepts -pipe
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dnl
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dnl 98/02/11 Ralf Corsepius corsepiu@faw.uni-ulm.de
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dnl
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AC_DEFUN(RTEMS_GCC_PIPE,
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[AC_REQUIRE([RTEMS_PROG_CC])
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AC_CACHE_CHECK(whether $CC_FOR_TARGET accepts --pipe,rtems_cv_gcc_pipe,
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[
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echo 'void f(){}' >conftest.c
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if test -z "`${CC_FOR_TARGET} --pipe -c conftest.c 2>&1`";then
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rtems_cv_gcc_pipe=yes
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else
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rtems_cv_gcc_pipe=no
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fi
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rm -f conftest*
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])])
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@@ -0,0 +1,20 @@
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dnl
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dnl $Id$
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dnl
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dnl Check whether the target compiler accepts -specs
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dnl
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dnl 98/02/11 Ralf Corsepius corsepiu@faw.uni-ulm.de
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dnl
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AC_DEFUN(RTEMS_GCC_SPECS,
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[AC_REQUIRE([RTEMS_PROG_CC])
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AC_CACHE_CHECK(whether $CC_FOR_TARGET accepts -specs,rtems_cv_gcc_specs,
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[touch confspec
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echo 'void f(){}' >conftest.c
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if test -z "`${CC_FOR_TARGET} -specs confspec -c conftest.c 2>&1`";then
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rtems_cv_gcc_specs=yes
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else
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rtems_cv_gcc_specs=no
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fi
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rm -f confspec conftest*
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])])
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@@ -0,0 +1,76 @@
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dnl
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dnl $Id$
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dnl
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dnl Check for target gcc
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dnl
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dnl Adaptation of autoconf-2.12's AC_PROG_CC to rtems
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dnl
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dnl 98/02/10 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
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dnl
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AC_DEFUN(RTEMS_PROG_CC,
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[
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AC_BEFORE([$0], [AC_PROG_CPP])dnl
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AC_BEFORE([$0], [AC_PROG_CC])dnl
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AC_CHECK_PROG(CC, gcc, gcc)
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if test -z "$CC"; then
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AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
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fi
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RTEMS_PROG_CC_WORKS
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AC_PROG_CC_GNU
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if test $ac_cv_prog_gcc = yes; then
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GCC=yes
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dnl Check whether -g works, even if CFLAGS is set, in case the package
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dnl plays around with CFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CFLAGS="${CFLAGS+set}"
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ac_save_CFLAGS="$CFLAGS"
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CFLAGS=
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AC_PROG_CC_G
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if test "$ac_test_CFLAGS" = set; then
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CFLAGS="$ac_save_CFLAGS"
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elif test $ac_cv_prog_cc_g = yes; then
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CFLAGS="-g -O2"
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else
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CFLAGS="-O2"
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fi
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else
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GCC=
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test "${CFLAGS+set}" = set || CFLAGS="-g"
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fi
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CC_FOR_TARGET=$CC
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rtems_cv_prog_gcc=$ac_cv_prog_gcc
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rtems_cv_prog_cc_g=$ac_cv_prog_cc_g
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dnl restore initial values
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unset CC
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unset ac_cv_prog_gcc
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unset ac_cv_prog_cc_g
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unset ac_cv_prog_CC
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])
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dnl Almost identical to AC_PROG_CC_WORKS
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dnl added malloc to program fragment, because rtems has its own malloc
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dnl which is not available while bootstrapping rtems
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AC_DEFUN(RTEMS_PROG_CC_WORKS,
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[AC_MSG_CHECKING([whether the target C compiler ($CC $CFLAGS $LDFLAGS) works])
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AC_LANG_SAVE
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AC_LANG_C
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AC_TRY_COMPILER(
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[void *malloc() { return 0; }
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main(){return(0);}],
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rtems_cv_prog_cc_works, rtems_cv_prog_cc_cross)
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AC_LANG_RESTORE
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AC_MSG_RESULT($rtems_cv_prog_cc_works)
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if test $rtems_cv_prog_cc_works = no; then
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AC_MSG_ERROR([installation or configuration problem: target C compiler cannot create executables.])
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fi
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AC_MSG_CHECKING([whether the target C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler])
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AC_MSG_RESULT($rtems_cv_prog_cc_cross)
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])
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@@ -0,0 +1,76 @@
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dnl
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dnl $Id$
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dnl
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dnl Check for target g++
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dnl
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dnl Adaptation of autoconf-2.12's AC_PROG_CXX to rtems
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dnl
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dnl 98/02/10 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
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dnl
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AC_DEFUN(RTEMS_PROG_CXX,
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[
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AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
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AC_BEFORE([$0], [AC_PROG_CXX])dnl
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AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
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RTEMS_PROG_CXX_WORKS
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AC_PROG_CXX_GNU
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if test $ac_cv_prog_gxx = yes; then
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GXX=yes
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dnl Check whether -g works, even if CXXFLAGS is set, in case the package
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dnl plays around with CXXFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CXXFLAGS="${CXXFLAGS+set}"
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS=
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AC_PROG_CXX_G
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if test "$ac_test_CXXFLAGS" = set; then
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CXXFLAGS="$ac_save_CXXFLAGS"
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elif test $ac_cv_prog_cxx_g = yes; then
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CXXFLAGS="-g -O2"
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else
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CXXFLAGS="-O2"
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fi
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else
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GXX=
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test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
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fi
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CXX_FOR_TARGET=$CXX
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dnl restore initial values
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unset CXX
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unset ac_cv_prog_gxx
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])
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dnl Almost identical to AC_PROG_CXX_WORKS
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dnl Additional handling of malloc
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dnl NOTE: using newlib with a native compiler is cross-compiling, indeed.
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AC_DEFUN(RTEMS_PROG_CXX_WORKS,
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[AC_MSG_CHECKING([whether the target C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works])
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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dnl this fails if rtems uses newlib, because rtems has its own malloc which
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dnl is not available at bootstrap
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AC_TRY_COMPILER(
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[main(){return(0);}],
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rtems_cv_prog_cxx_works, rtems_cv_prog_cxx_cross)
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if test "$rtems_cv_prog_cxx_works" = "no"; then
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dnl now retry with our own version of malloc
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AC_TRY_COMPILER(
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[extern "C" void *malloc();
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void *malloc() { return (0); }
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main(){return(0);}],
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rtems_cv_prog_cxx_works, rtems_cv_prog_cxx_cross)
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fi
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AC_LANG_RESTORE
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AC_MSG_RESULT($rtems_cv_prog_cxx_works)
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if test $rtems_cv_prog_cxx_works = no; then
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AC_MSG_ERROR([installation or configuration problem: target C++ compiler cannot create executables.])
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fi
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AC_MSG_CHECKING([whether the target C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler])
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AC_MSG_RESULT($rtems_cv_prog_cxx_cross)
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])
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