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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-10-18 13:14:49 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-10-18 13:14:49 +0000
commitaac7fdd28cf1ffbce75e88a1174e75bf5dfa0f30 (patch)
treec738bfae54c1916b7637adb784317dc20e3d32b7 /macros/i386-gas-code16.m4
parent2000-10-18 Joel Sherrill <joel@OARcorp.com> (diff)
downloadrtems-aac7fdd28cf1ffbce75e88a1174e75bf5dfa0f30.tar.bz2
2000-09-14 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* macros: New directory. * macros/bsp-alias.m4: new file. * macros/canonical-host.m4: new file. * macros/canonical-target-name.m4: new file. * macros/canonicalize-tools.m4: new file. * macros/check-bsp-cache.m4: new file. * macros/check-bsps.m4: new file. * macros/check-cpu.m4: new file. * macros/rtems-debug.m4: new file. * macros/check-cxx.m4: new file. * macros/check-itron.m4: new file. * macros/check-multiprocessing.m4: new file. * macros/check-networking.m4: new file. * macros/check-newlib.m4: new file. * macros/check-posix.m4: new file. * macros/check-rdbg.m4: new file. * macros/enable-bare.m4: new file. * macros/enable-cxx.m4: new file. * macros/enable-gcc28.m4: new file. * macros/enable-inlines.m4: new file. * macros/enable-itron.m4: new file. * macros/enable-libcdir.m4: new file. * macros/enable-multiprocessing.m4: new file. * macros/enable-networking.m4: new file. * macros/enable-posix.m4: new file. * macros/enable-rdbg.m4: new file. * macros/enable-rtemsbsp.m4: new file. * macros/enable-tests.m4: new file. * macros/gcc-pipe.m4: new file. * macros/gcc-specs.m4: new file. * macros/i386-gas-code16.m4: new file. * macros/path-ksh.m4: new file. * macros/path-perl.m4: new file. * macros/prog-cc.m4: new file. * macros/prog-cxx.m4: new file. * macros/project-root.m4: new file. * macros/rtems-top.m4: new file. * macros/sysv-ipc.m4: new file. * macros/target.m4: new file. * macros/rtems-test-no-pause.m4: new file. * macros/multilib.m4: new file. * macros/tool-paths.m4: new file. * macros/tool-prefix.m4: new file.
Diffstat (limited to 'macros/i386-gas-code16.m4')
-rw-r--r--macros/i386-gas-code16.m428
1 files changed, 28 insertions, 0 deletions
diff --git a/macros/i386-gas-code16.m4 b/macros/i386-gas-code16.m4
new file mode 100644
index 0000000000..8bfb2a5859
--- /dev/null
+++ b/macros/i386-gas-code16.m4
@@ -0,0 +1,28 @@
+dnl
+dnl $Id$
+dnl
+
+dnl check for i386 gas supporting 16 bit mode
+dnl - binutils 2.9.1.0.7 and higher
+
+AC_DEFUN(RTEMS_I386_GAS_CODE16,
+[ if test "${host_cpu}" = "i386"; then
+ AC_CACHE_CHECK([for 16 bit mode assembler support],
+ rtems_cv_prog_gas_code16,
+ [cat > conftest.s << EOF
+ .code16
+ data32
+ addr32
+ lgdt 0
+EOF
+ if AC_TRY_COMMAND($AS -o conftest.o conftest.s); then
+ rtems_cv_prog_gas_code16=yes
+ else
+ rtems_cv_prog_gas_code16=no
+ fi])
+ RTEMS_GAS_CODE16="$rtems_cv_prog_gas_code16"
+ fi
+ AC_SUBST(RTEMS_GAS_CODE16)
+ AC_DEFINE_UNQUOTED(NEW_GAS,1,[if using 16 bit mode assembler support])
+])
+