This is the mail archive of the
libc-alpha@sources.redhat.com
mailing list for the glibc project.
Define -msoft-float on ppc when --without-fp specified
- From: Geoff Keating <geoffk at geoffk dot org>
- To: libc-alpha at sources dot redhat dot com
- Date: Wed, 5 Dec 2001 17:22:50 -0800
- Subject: Define -msoft-float on ppc when --without-fp specified
- Reply-to: Geoff Keating <geoffk at redhat dot com>
This patch makes the user's life easier by automatically passing the
appropriate flags to GCC to disable use of the FPU when --without-fp
is specified.
OK to commit?
--
- Geoffrey Keating <geoffk@geoffk.org> <geoffk@redhat.com>
===File ~/patches/cygnus/glibc-softfloat-submit.patch=======
2001-12-05 Geoff Keating <geoffk@redhat.com>
* config.make.in (with-fp): Define from configure.
* configure.in: Substitute with_fp.
* configure: Regenerate.
* powerpc/Makefile: Set -msoft-float when --without-fp is specified,
and don't change FPU environment.
Index: config.make.in
===================================================================
RCS file: /cvs/glibc/libc/config.make.in,v
retrieving revision 1.81
diff -p -u -u -p -r1.81 config.make.in
--- config.make.in 2001/11/16 01:03:15 1.81
+++ config.make.in 2001/12/06 00:03:06
@@ -44,6 +44,7 @@ have-z-combreloc = @libc_cv_z_combreloc@
have-initfini = @libc_cv_have_initfini@
have-Bgroup = @libc_cv_Bgroup@
need-nopic-initfini = @nopic_initfini@
+with-fp = @with_fp@
with-cvs = @with_cvs@
old-glibc-headers = @old_glibc_headers@
unwind-find-fde = @libc_cv_gcc_unwind_find_fde@
Index: configure.in
===================================================================
RCS file: /cvs/glibc/libc/configure.in,v
retrieving revision 1.327
diff -p -u -u -p -r1.327 configure.in
--- configure.in 2001/11/16 01:03:41 1.327
+++ configure.in 2001/12/06 00:03:13
@@ -59,6 +59,7 @@ dnl Arguments to specify presence of oth
AC_ARG_WITH(fp, dnl
[ --with-fp if using floating-point hardware [default=yes]],
with_fp=$withval, with_fp=yes)
+AC_SUBST(with_fp)
AC_ARG_WITH(binutils, dnl
--with-binutils=PATH specify location of binutils (as and ld),
path_binutils=$withval, path_binutils='')
Index: sysdeps/powerpc/Makefile
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/powerpc/Makefile,v
retrieving revision 1.13
diff -p -u -u -p -r1.13 Makefile
--- Makefile 2000/11/27 23:32:47 1.13
+++ Makefile 2001/12/06 00:03:13
@@ -3,8 +3,13 @@
+cflags += -mnew-mnemonics -Wa,-mppc -mpowerpc
asm-CPPFLAGS += -Wa,-mppc
+ifeq ($(with-fp),no)
++cflags += -msoft-float
+sysdep-LDFLAGS += -msoft-float
+else
ifeq ($(subdir),math)
libm-support += fenv_const fe_nomask
+endif
endif
ifeq ($(subdir),gmon)
============================================================