[PATCH] Document -mabi=elfv[12] (Re: [PATCH, rs6000] ELFv2 ABI 1/8: Add options and infrastructure)

[Ulrich Weigand]

David Edelsohn wrote:
> On Thu, Nov 14, 2013 at 5:07 PM, Ulrich Weigand <uweigand@de.ibm.com> wrote:
> 
> > Here's a patch to add documentation along the lines of what we have
> > for the longdouble switches.
> >
> > Doc build tested on powerpc64-linux.
> >
> > David, would that be OK for mainline, or do have other suggestions?
> 
> I don't think that the wording is correct because -mabi=elfv1 and
> -mabi=elfv2 are "options" for either endian.

I've checked in the following patch using your wording.

Thanks,
Ulrich

ChangeLog:

	* doc/invoke.texi (-mabi=elfv1, -mabi=elfv2): Document.

Index: gcc/gcc/doc/invoke.texi
===================================================================
--- gcc.orig/gcc/doc/invoke.texi
+++ gcc/gcc/doc/invoke.texi
@@ -18846,7 +18846,8 @@ SVR4 ABI)@.
 @opindex mabi
 Extend the current ABI with a particular extension, or remove such extension.
 Valid values are @var{altivec}, @var{no-altivec}, @var{spe},
-@var{no-spe}, @var{ibmlongdouble}, @var{ieeelongdouble}@.
+@var{no-spe}, @var{ibmlongdouble}, @var{ieeelongdouble},
+@var{elfv1}, @var{elfv2}@.
 
 @item -mabi=spe
 @opindex mabi=spe
@@ -18868,6 +18869,20 @@ This is a PowerPC 32-bit SYSV ABI option
 Change the current ABI to use IEEE extended-precision long double.
 This is a PowerPC 32-bit Linux ABI option.
 
+@item -mabi=elfv1
+@opindex mabi=elfv1
+Change the current ABI to use the ELFv1 ABI.
+This is the default ABI for big-endian PowerPC 64-bit Linux.
+Overriding the default ABI requires special system support and is
+likely to fail in spectacular ways.
+
+@item -mabi=elfv2
+@opindex mabi=elfv2
+Change the current ABI to use the ELFv2 ABI.
+This is the default ABI for little-endian PowerPC 64-bit Linux.
+Overriding the default ABI requires special system support and is
+likely to fail in spectacular ways.
+
 @item -mprototype
 @itemx -mno-prototype
 @opindex mprototype

-- 
  Dr. Ulrich Weigand
  GNU/Linux compilers and toolchain
  Ulrich.Weigand@de.ibm.com