[PATCH v2] Support powerpc64le-linux platform

[Ulrich Weigand]

Torbjorn Granlund wrote:

> There are a handful of regressions for 32-bit powerpc and powerc64
> running in 32-bit mode.
> 
> https://gmplib.org/devel/tm-date.html

Ah, I hadn't realized that some of the 32-bit targets actually
use files under powerpc64/, but still an .m4 file in powerpc32/.

I guess this means the relevant .m4 files in powerpc32 also
need to accept and ignore the second PROLOGUE_cpu argument.

As far as I can see, this affects only elf.m4 and darwin.m4.
Fixed by the patch below.

Tested using
   ABI=mode32 ../gmp/configure --host=power6-unknown-linux-gnu
which is one of the configurations that failed before the patch.

Bye,
Ulrich


2013-12-14  Ulrich Weigand  <Ulrich.Weigand at de.ibm.com>

	* mpn/powerpc32/darwin.m4: Allow (and ignore) optional
	'toc' parameter to PROLOGUE_cpu.
	* mpn/powerpc32/elf.m4: Likewise.


diff -r 85e13c6f3293 mpn/powerpc32/darwin.m4
--- a/mpn/powerpc32/darwin.m4	Fri Dec 13 12:23:03 2013 +0100
+++ b/mpn/powerpc32/darwin.m4	Sat Dec 14 08:26:15 2013 -0500
@@ -20,13 +20,15 @@
 
 define(`ASM_START',`')
 
-dnl  Called: PROLOGUE_cpu(GSYM_PREFIX`'foo)
+dnl  Called: PROLOGUE_cpu(GSYM_PREFIX`'foo[,toc])
 dnl          EPILOGUE_cpu(GSYM_PREFIX`'foo)
 dnl
 
 define(`PROLOGUE_cpu',
-m4_assert_numargs(1)
-`	.text
+m4_assert_numargs_range(1,2)
+`ifelse(`$2',toc,,
+`ifelse(`$2',,,`m4_error(`Unrecognised PROLOGUE parameter')')')dnl
+	.text
 	.globl	$1
 	.align	3
 $1:')
diff -r 85e13c6f3293 mpn/powerpc32/elf.m4
--- a/mpn/powerpc32/elf.m4	Fri Dec 13 12:23:03 2013 +0100
+++ b/mpn/powerpc32/elf.m4	Sat Dec 14 08:26:15 2013 -0500
@@ -20,13 +20,14 @@
 
 define(`ASM_START',`')
 
-dnl  Called: PROLOGUE_cpu(GSYM_PREFIX`'foo)
+dnl  Called: PROLOGUE_cpu(GSYM_PREFIX`'foo[,toc])
 dnl          EPILOGUE_cpu(GSYM_PREFIX`'foo)
 dnl
 
 define(`PROLOGUE_cpu',
-m4_assert_numargs(1)
-	`
+m4_assert_numargs_range(1,2)
+`ifelse(`$2',toc,,
+`ifelse(`$2',,,`m4_error(`Unrecognised PROLOGUE parameter')')')dnl
 	.section	".text"
 	.align	3
 	.globl	$1


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