Message ID | Pine.LNX.4.64.1102032020570.18971@digraph.polyomino.org.uk |
---|---|
State | New |
Headers | show |
"Joseph S. Myers" <joseph@codesourcery.com> writes: > In preparation for the driver only accepting options listed in .opt > files, and not other options that simply happen to match some spec, > this patch adds options from specs in mips.h to mips.opt. -EB and -EL > are used in specs in various other headers as well; -noasmopt in > ASM_SPEC (via some levels of indirection). > > For multilib selection based on features the equivalence of -EB to > -meb and -EL to -mel will need to be better expressed in the .opt > files - probably by making one form of the options an Alias for the > other. (Given that, specs could be simplified to handle only the form > not marked as an Alias, and multilib configurations would need > updating to use only the non-Alias form, with MULTILIB_MATCHES between > the two forms removed.) Right now, -EB/-EL are more or less treated > as canonical for the driver (by multilib configurations at least) and > -meb/-mel for cc1 (indeed, they are the only form that works with > cc1). Yeah, this was to work around the old (pre-target-.opt-file) requirement that every target-specific cc1 option had to be in the "-m" group. -EB and -EL are supposed to be the canonical versions from a user perspective, and I think -mel and -meb were originally intended to be internal. That wasn't enforced though, and I realise -mel and -meb are now widely used as well. I agree it would be nice to make -mel an alias of -EL, now that your changes make that possible. > 2011-02-03 Joseph Myers <joseph@codesourcery.com> > > * config/mips/mips.opt (EB, EL, noasmopt): New Driver options. OK, thanks. Richard
Index: gcc/config/mips/mips.opt =================================================================== --- gcc/config/mips/mips.opt (revision 169769) +++ gcc/config/mips/mips.opt (working copy) @@ -1,6 +1,6 @@ ; Options for the MIPS port of the compiler ; -; Copyright (C) 2005, 2007, 2008, 2010 Free Software Foundation, Inc. +; Copyright (C) 2005, 2007, 2008, 2010, 2011 Free Software Foundation, Inc. ; ; This file is part of GCC. ; @@ -18,6 +18,12 @@ ; along with GCC; see the file COPYING3. If not see ; <http://www.gnu.org/licenses/>. +EB +Driver + +EL +Driver + mabi= Target RejectNegative Joined -mabi=ABI Generate code that conforms to the given ABI @@ -299,3 +305,6 @@ Perform VR4130-specific alignment optimi mxgot Target Report Var(TARGET_XGOT) Lift restrictions on GOT size + +noasmopt +Driver