[PATCH] ld: Extend ac_default_ld_warn_rwx_segments to all SPARC targets [PR29411]

[Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>]

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As discussed in PR ld/29411, the ld warning

	[...] has a LOAD segment with RWX permissions

needs to be disabled on all SPARC targets, not just Solaris/SPARC: the
.plt section is required to be RWX by the 32-bit SPARC ELF psABI and the
64-bit SPARC Compliance Definition 2.4.1.  Given that ld only supports
SPARC ELF targets, this patch implements this.

Tested on sparc64-unknown-linux-gnu and sparc-sun-solaris2.11.

Ok for master and the 2.39 branch?

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2022-07-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	ld:
	PR ld/29411
	* configure.tgt (ac_default_ld_warn_rwx_segments): Extend to all
	sparc targets.  Expand comment.


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diff --git a/ld/configure.tgt b/ld/configure.tgt
--- a/ld/configure.tgt
+++ b/ld/configure.tgt
@@ -49,13 +49,13 @@ if test "${ac_default_ld_warn_rwx_segmen
   case "${targ}" in
       # The CRIS default linker script yields just one segment
       # as intended, so a rwx segment warning is not helpful.
-      # The HPPA's PLT section uses a constructed trampoline
+      # The HPPA's and SPARC's PLT sections use a constructed trampoline
       # hence it needs to have a RWX segment.
       # Many MIPS targets use executable segments.
     cris-*-* | crisv32-*-* | \
     hppa*-*-* | \
-    sparc*-*-solaris2* | \
-    mips*-*-*)
+    mips*-*-* | \
+    sparc*-*-*)
       ac_default_ld_warn_rwx_segments=0
       ;;
     *)