PowerPC64 dot-sym testsuite fixes

This illustrates quite well why dot-symbols had to go.  PowerPC64 gcc
for Linux stopped producing them 12 years ago, but the Linux kernel
still persists in using them so it's necessary to keep and
regression test ld support.

	* testsuite/ld-elf/indirect1b.c: Give dot-symbol a version too.
	* testsuite/ld-elf/indirect2.c: Likewise.
	* testsuite/ld-elf/indirect3b.c: Likewise.
	* testsuite/ld-elf/indirect4b.c: Likewise.
	* testsuite/ld-elf/pr18718.c: Likewise.
	* testsuite/ld-elf/pr18720b.c: Likewise.
	* testsuite/ld-elf/pr19553c.c: Likewise.
	* testsuite/ld-elfvers/vers.h (FUNC_SYMVER): Define.
	* testsuite/ld-elfvers/vers1.c: Use FUNC_SYMVER for functions.
	* testsuite/ld-elfvers/vers4.c: Likewise.
	* testsuite/ld-elfvers/vers5.c: Likewise.
	* testsuite/ld-elfvers/vers6.c: Likewise.
	* testsuite/ld-elfvers/vers7a.c: Likewise.
	* testsuite/ld-elfvers/vers9.c: Likewise.
	* testsuite/ld-elfvers/vers15.c: Likewise.
	* testsuite/ld-elfvers/vers18.c: Likewise.
	* testsuite/ld-elfvers/vers22a.c: Likewise.
	* testsuite/ld-elfvers/vers23a.c: Likewise.
	* testsuite/ld-elfvers/vers27d1.c: Likewise.
	* testsuite/ld-elfvers/vers21.c: Likewise.
	(_old_bar): Use attribute weak rather than asm weak.
	* testsuite/ld-ifunc/pr16467b.c: Give dot-symbol a version.
	* testsuite/ld-plugin/pr12760b.c: Define warning on .bar rather than
	bar for ppc64 -mcall-aixdesc.
	* testsuite/ld-plugin/pr16746a.c: Similarly for foobar.
	* testsuite/ld-plugin/pr16746b.c: Likewise.
	* testsuite/ld-elf/shared.exp: Allow dot-symbol in warnings and errors.
	* testsuite/ld-plugin/lto.exp: Likewise.
	* testsuite/ld-plugin/plugin-6.d: Likewise.
	* testsuite/ld-plugin/plugin-7.d: Likewise.
	* testsuite/ld-plugin/plugin-8.d: Likewise.
	* testsuite/ld-plugin/plugin-13.d: Likewise.
	* testsuite/ld-plugin/plugin-14.d: Likewise.
	* testsuite/ld-plugin/plugin-15.d: Likewise.
	* testsuite/ld-plugin/plugin-16.d: Likewise.
	* testsuite/ld-plugin/plugin-20.d: Likewise.
	* testsuite/ld-plugin/plugin-21.d: Likewise.
	* testsuite/ld-plugin/plugin-22.d: Likewise.
	* testsuite/ld-plugin/plugin-23.d: Likewise.
	* testsuite/ld-plugin/plugin.exp: Define .main and .puts for ppc64
	-mcall-aixdesc.
	* testsuite/ld-elfvers/vers.exp (test_ar): Trim dot-symbols.
	(objdump_dynsymstuff): Likewise.
	(objdump_symstuff): Likewise.  Pack flags to keep column count
	consistent.
	* testsuite/ld-elfweak/elfweak.exp (objdump_dynsymstuff,
	objdump_symstuff): As for vers.exp.
	* testsuite/ld-elfvers/vers6.sym: Allow dot-symbols.
	* testsuite/ld-elfvers/vers1.sym: Allow missing F flag for
	-mcall-aixdesc .opd syms and adjust for flag packing.
	* testsuite/ld-elfvers/vers4.sym: Likewise.
	* testsuite/ld-elfvers/vers4a.sym: Likewise.
	* testsuite/ld-elfvers/vers7a.sym: Likewise.
	* testsuite/ld-elfvers/vers9.sym: Likewise.
	* testsuite/ld-elfvers/vers15.sym: Likewise.
	* testsuite/ld-elfvers/vers18.sym: Likewise.
	* testsuite/ld-elfvers/vers21.sym: Likewise.
	* testsuite/ld-elfvers/vers22a.sym: Likewise.
	* testsuite/ld-elfvers/vers23a.sym: Likewise.
	* testsuite/ld-elfvers/vers27d.sym: Likewise.
	* testsuite/ld-elfweak/strong.sym: Likewise.
	* testsuite/ld-elfweak/strongcomm.sym: Likewise.
	* testsuite/ld-elfweak/strongdata.sym: Likewise.

ld/ChangeLog

@@ -1,3 +1,69 @@
+2016-12-03  Alan Modra  <amodra@gmail.com>
+
+	* testsuite/ld-elf/indirect1b.c: Give dot-symbol a version too.
+	* testsuite/ld-elf/indirect2.c: Likewise.
+	* testsuite/ld-elf/indirect3b.c: Likewise.
+	* testsuite/ld-elf/indirect4b.c: Likewise.
+	* testsuite/ld-elf/pr18718.c: Likewise.
+	* testsuite/ld-elf/pr18720b.c: Likewise.
+	* testsuite/ld-elf/pr19553c.c: Likewise.
+	* testsuite/ld-elfvers/vers.h (FUNC_SYMVER): Define.
+	* testsuite/ld-elfvers/vers1.c: Use FUNC_SYMVER for functions.
+	* testsuite/ld-elfvers/vers4.c: Likewise.
+	* testsuite/ld-elfvers/vers5.c: Likewise.
+	* testsuite/ld-elfvers/vers6.c: Likewise.
+	* testsuite/ld-elfvers/vers7a.c: Likewise.
+	* testsuite/ld-elfvers/vers9.c: Likewise.
+	* testsuite/ld-elfvers/vers15.c: Likewise.
+	* testsuite/ld-elfvers/vers18.c: Likewise.
+	* testsuite/ld-elfvers/vers22a.c: Likewise.
+	* testsuite/ld-elfvers/vers23a.c: Likewise.
+	* testsuite/ld-elfvers/vers27d1.c: Likewise.
+	* testsuite/ld-elfvers/vers21.c: Likewise.
+	(_old_bar): Use attribute weak rather than asm weak.
+	* testsuite/ld-ifunc/pr16467b.c: Give dot-symbol a version.
+	* testsuite/ld-plugin/pr12760b.c: Define warning on .bar rather than
+	bar for ppc64 -mcall-aixdesc.
+	* testsuite/ld-plugin/pr16746a.c: Similarly for foobar.
+	* testsuite/ld-plugin/pr16746b.c: Likewise.
+	* testsuite/ld-elf/shared.exp: Allow dot-symbol in warnings and errors.
+	* testsuite/ld-plugin/lto.exp: Likewise.
+	* testsuite/ld-plugin/plugin-6.d: Likewise.
+	* testsuite/ld-plugin/plugin-7.d: Likewise.
+	* testsuite/ld-plugin/plugin-8.d: Likewise.
+	* testsuite/ld-plugin/plugin-13.d: Likewise.
+	* testsuite/ld-plugin/plugin-14.d: Likewise.
+	* testsuite/ld-plugin/plugin-15.d: Likewise.
+	* testsuite/ld-plugin/plugin-16.d: Likewise.
+	* testsuite/ld-plugin/plugin-20.d: Likewise.
+	* testsuite/ld-plugin/plugin-21.d: Likewise.
+	* testsuite/ld-plugin/plugin-22.d: Likewise.
+	* testsuite/ld-plugin/plugin-23.d: Likewise.
+	* testsuite/ld-plugin/plugin.exp: Define .main and .puts for ppc64
+	-mcall-aixdesc.
+	* testsuite/ld-elfvers/vers.exp (test_ar): Trim dot-symbols.
+	(objdump_dynsymstuff): Likewise.
+	(objdump_symstuff): Likewise.  Pack flags to keep column count
+	consistent.
+	* testsuite/ld-elfweak/elfweak.exp (objdump_dynsymstuff,
+	objdump_symstuff): As for vers.exp.
+	* testsuite/ld-elfvers/vers6.sym: Allow dot-symbols.
+	* testsuite/ld-elfvers/vers1.sym: Allow missing F flag for
+	-mcall-aixdesc .opd syms and adjust for flag packing.
+	* testsuite/ld-elfvers/vers4.sym: Likewise.
+	* testsuite/ld-elfvers/vers4a.sym: Likewise.
+	* testsuite/ld-elfvers/vers7a.sym: Likewise.
+	* testsuite/ld-elfvers/vers9.sym: Likewise.
+	* testsuite/ld-elfvers/vers15.sym: Likewise.
+	* testsuite/ld-elfvers/vers18.sym: Likewise.
+	* testsuite/ld-elfvers/vers21.sym: Likewise.
+	* testsuite/ld-elfvers/vers22a.sym: Likewise.
+	* testsuite/ld-elfvers/vers23a.sym: Likewise.
+	* testsuite/ld-elfvers/vers27d.sym: Likewise.
+	* testsuite/ld-elfweak/strong.sym: Likewise.
+	* testsuite/ld-elfweak/strongcomm.sym: Likewise.
+	* testsuite/ld-elfweak/strongdata.sym: Likewise.
+
 2016-12-03  Alan Modra  <amodra@gmail.com>
 
 	* testsuite/ld-elfvers/vers.exp (objdump_dynsymstuff): Don't abort

ld/testsuite/ld-elf/indirect1b.c

@@ -4,3 +4,6 @@ foo (void)
 }
 
 asm (".symver foo,foo@FOO");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo,.foo@FOO");
+#endif

ld/testsuite/ld-elf/indirect2.c

@@ -1,6 +1,9 @@
 extern void foo (void);
 
 asm (".symver foo,foo@@@FOO");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo,.foo@@@FOO");
+#endif
 
 void
 bar (void)

ld/testsuite/ld-elf/indirect3b.c

@@ -7,3 +7,6 @@ foo (void)
 }
 
 asm (".symver foo,foo@FOO");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo,.foo@FOO");
+#endif

ld/testsuite/ld-elf/indirect4b.c

@@ -7,6 +7,9 @@ foo2 (void)
 }
 
 asm (".symver foo2,foo@@FOO2");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo2,.foo@@FOO2");
+#endif
 
 void
 foo1 (void)
@@ -15,3 +18,6 @@ foo1 (void)
 }
 
 asm (".symver foo1,foo@FOO1");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo1,.foo@FOO1");
+#endif

ld/testsuite/ld-elf/pr18718.c

@@ -10,6 +10,9 @@ new_foo (void)
 }
 
 __asm__(".symver new_foo, foo@@VERS_2.0");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+__asm__(".symver .new_foo, .foo@@VERS_2.0");
+#endif
 
 #if defined(__GNUC__) && (__GNUC__ * 1000 + __GNUC_MINOR__) >= 4005
 __attribute__ ((noinline, noclone))

ld/testsuite/ld-elf/pr18720b.c

@@ -9,3 +9,8 @@ foo (void)
 asm (".symver foo,foo@FOO");
 asm (".set foo_alias,foo");
 asm (".global foo_alias");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo,.foo@FOO");
+asm (".set .foo_alias,.foo");
+asm (".global .foo_alias");
+#endif

ld/testsuite/ld-elf/pr19553c.c

@@ -7,3 +7,6 @@ foo (void)
 }
 
 asm (".symver foo,foo@FOO");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+asm (".symver .foo,.foo@FOO");
+#endif

ld/testsuite/ld-elf/shared.exp

@@ -454,14 +454,14 @@ if { [ regexp "tmpdir/libneeded1b.so: .*: DSO missing" $exec_output ] } {
 }
 set testname "--no-add-needed -shared"
 set exec_output [run_host_cmd "$CC" "-shared tmpdir/libneeded1pic.o -Wl,--no-add-needed,-z,defs -Ltmpdir -lneeded1a"]
-if { [ regexp "undefined reference to `bar'" $exec_output ] } {
+if { [ regexp "undefined reference to `\.?bar'" $exec_output ] } {
     pass $testname
 } {
     fail $testname
 }
 set testname "--no-copy-dt-needed-entries -shared"
 set exec_output [run_host_cmd "$CC" "-shared tmpdir/libneeded1pic.o -Wl,--no-copy-dt-needed-entries,-z,defs -Ltmpdir -lneeded1a"]
-if { [ regexp "undefined reference to `bar'" $exec_output ] } {
+if { [ regexp "undefined reference to `\.?bar'" $exec_output ] } {
     pass $testname
 } {
     fail $testname

ld/testsuite/ld-elfvers/vers.exp

@@ -122,9 +122,9 @@ proc test_ar { test lib object expect } {
 	return
     }
 
-    verbose -log "$nm --print-armap $tmpdir/$lib | grep \" in \" | egrep \"VERS\\|bar\\|foo\" | sort > $tmpdir/nm.out"
-
-    catch "exec $nm --print-armap $tmpdir/$lib | grep \\\ in\\\  | egrep VERS\\\|bar\\\|foo | sort > $tmpdir/nm.out" exec_output
+    set cmd "$nm --print-armap $tmpdir/$lib | grep \\\ in\\\  | egrep VERS\\\|bar\\\|foo | grep -v ^\\\\. | sort > $tmpdir/nm.out"
+    verbose -log $cmd
+    catch "exec $cmd" exec_output
     if [string match "" $exec_output] then {
 	catch "exec sort $srcdir/$subdir/$expect | $diff $tmpdir/nm.out -" exec_output
 	set exec_output [prune_warnings $exec_output]
@@ -245,9 +245,9 @@ proc objdump_symstuff { objdump object expectfile } {
 
     if ![info exists SOBJDUMP_FLAGS] { set SOBJDUMP_FLAGS "" }
 
-    verbose -log "$objdump $SOBJDUMP_FLAGS $object | grep \@ | sort -k 6  > $tmpdir/objdump.out"
-
-    catch "exec $objdump $SOBJDUMP_FLAGS $object | grep \@ | sort -k 6 > $tmpdir/objdump.out" exec_output
+    set cmd "$objdump $SOBJDUMP_FLAGS $object | sed -n {s/^\\(\[0-9a-f\]* *\\)\\(\[gw\]\\)\\( *\\)\\(\[FO\]\\)/\\1\\2\\4\\3/;/\@/p} | sort -k 5 > $tmpdir/objdump.out"
+    verbose -log $cmd
+    catch "exec $cmd" exec_output
     set exec_output [prune_warnings $exec_output]
     if [string match "" $exec_output] then {
 
@@ -286,7 +286,8 @@ proc objdump_symstuff { objdump object expectfile } {
 	close $file_a
 
 	while { [gets $file_b line] != $eof } {
-	    if [regexp "^#.*$" $line] then {
+	    if [regexp {\.text.* \.[^ ]*$} $line] then {
+		# Discard defined powerpc64 dot-symbols
 		continue
 	    } else {
 		lappend list_b $line
@@ -340,9 +341,9 @@ proc objdump_dynsymstuff { objdump object expectfile } {
 
     if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }
 
-    verbose -log "$objdump $DOBJDUMP_FLAGS $object | sed -n /VERS/p\\\;/show/p | sort | uniq  > $tmpdir/objdump.out"
-
-    catch "exec $objdump $DOBJDUMP_FLAGS $object | sed -n /VERS/p\\\;/show/p | sort | uniq  > $tmpdir/objdump.out" exec_output
+    set cmd "$objdump $DOBJDUMP_FLAGS $object | sed -n /VERS/p\\\;/show/p | sort | uniq > $tmpdir/objdump.out"
+    verbose -log $cmd
+    catch "exec $cmd" exec_output
     set exec_output [prune_warnings $exec_output]
     if [string match "" $exec_output] then {
 
@@ -381,7 +382,8 @@ proc objdump_dynsymstuff { objdump object expectfile } {
 	close $file_a
 
 	while { [gets $file_b line] != $eof } {
-	    if [regexp "^#.*$" $line] then {
+	    if [regexp {\.text.* \.[^ ]*$} $line] then {
+		# Discard defined powerpc64 dot-symbols
 		continue
 	    } else {
 		lappend list_b $line

ld/testsuite/ld-elfvers/vers.h

@@ -7,3 +7,10 @@
 /* Generate a .symver reference with symbol prefixes.
    Usage: SYMVER(foo, foobar@ver);  */
 #define SYMVER(name, name2) __asm__(".symver " SYMPFX(name) "," SYMPFX(name2))
+
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+#define FUNC_SYMVER(name, name2) SYMVER(name, name2);	\
+  __asm__(".symver ." SYMPFX(name) ",." SYMPFX(name2))
+#else
+#define FUNC_SYMVER(name, name2) SYMVER(name, name2)
+#endif

ld/testsuite/ld-elfvers/vers1.c

@@ -49,10 +49,10 @@ hide_new_foo()
 
 }
 
-SYMVER(hide_original_foo, show_foo@);
-SYMVER(hide_old_foo, show_foo@VERS_1.1);
-SYMVER(hide_old_foo1, show_foo@VERS_1.2);
-SYMVER(hide_new_foo, show_foo@@VERS_2.0);
+FUNC_SYMVER(hide_original_foo, show_foo@);
+FUNC_SYMVER(hide_old_foo, show_foo@VERS_1.1);
+FUNC_SYMVER(hide_old_foo1, show_foo@VERS_1.2);
+FUNC_SYMVER(hide_new_foo, show_foo@@VERS_2.0);
 
 
 
@@ -65,7 +65,7 @@ hide_new_bogus_foo()
 	return 1000+bar();
 
 }
-SYMVER(hide_new_bogus_foo, show_foo@VERS_2.2);
+FUNC_SYMVER(hide_new_bogus_foo, show_foo@VERS_2.2);
 #endif
 
 
@@ -83,8 +83,8 @@ xyzzz()
   bar33();
 }
 
-SYMVER(new2_foo, fooVERS_2.0);
-SYMVER(bar33, bar@@VERS_2.0);
+FUNC_SYMVER(new2_foo, fooVERS_2.0);
+FUNC_SYMVER(bar33, bar@@VERS_2.0);
 #endif
 
 #ifdef DO_TEST12
@@ -99,5 +99,5 @@ xyzzz()
   bar33();
 }
 
-SYMVER(bar33, bar@@VERS_2.0);
+FUNC_SYMVER(bar33, bar@@VERS_2.0);
 #endif

ld/testsuite/ld-elfvers/vers1.sym

@@ -1,4 +1,4 @@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@@VERS_2\.0
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.1
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.2
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@@VERS_2\.0
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.1
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.2

ld/testsuite/ld-elfvers/vers15.c

@@ -32,6 +32,6 @@ main()
   return 0;
 }
 
-SYMVER(foo_1, show_foo@);
-SYMVER(foo_2, show_foo@VERS_1.1);
-SYMVER(foo_3, show_foo@@VERS_1.2);
+FUNC_SYMVER(foo_1, show_foo@);
+FUNC_SYMVER(foo_2, show_foo@VERS_1.1);
+FUNC_SYMVER(foo_3, show_foo@@VERS_1.2);

ld/testsuite/ld-elfvers/vers15.sym

@@ -1,3 +1,3 @@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@@VERS_1\.2
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.1
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@@VERS_1\.2
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.1

ld/testsuite/ld-elfvers/vers18.c

@@ -38,7 +38,7 @@ hide_new_foo ()
   return 1000 + bar ();
 }
 
-SYMVER(hide_original_foo, show_foo@);
-SYMVER(hide_old_foo, show_foo@VERS_1.1);
-SYMVER(hide_old_foo1, show_foo@VERS_1.2);
-SYMVER(hide_new_foo, show_foo@@VERS_2.0);
+FUNC_SYMVER(hide_original_foo, show_foo@);
+FUNC_SYMVER(hide_old_foo, show_foo@VERS_1.1);
+FUNC_SYMVER(hide_old_foo1, show_foo@VERS_1.2);
+FUNC_SYMVER(hide_new_foo, show_foo@@VERS_2.0);

ld/testsuite/ld-elfvers/vers18.sym

@@ -1,4 +1,4 @@
-[0-9a-f]+ +w +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@
-[0-9a-f]+ +w +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@@VERS_2\.0
-[0-9a-f]+ +w +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.1
-[0-9a-f]+ +w +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.2
+[0-9a-f]+ +w(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@
+[0-9a-f]+ +w(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@@VERS_2\.0
+[0-9a-f]+ +w(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.1
+[0-9a-f]+ +w(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_foo@VERS_1\.2

ld/testsuite/ld-elfvers/vers21.c

@@ -1,9 +1,8 @@
 #include "vers.h"
 
-SYMVER(_old_foo, foo@VERS.0);
-SYMVER(_old_bar, bar@VERS.0);
+FUNC_SYMVER(_old_foo, foo@VERS.0);
+FUNC_SYMVER(_old_bar, bar@VERS.0);
 SYMVER(_old_foobar, foobar@VERS.0);
-__asm__(".weak " SYMPFX(_old_bar));
 
 int
 bar () 
@@ -11,7 +10,7 @@ bar ()
   return 1;
 }
 
-int
+int __attribute__ ((weak))
 _old_bar () 
 {
   return bar ();

ld/testsuite/ld-elfvers/vers21.sym

@@ -1,3 +1,3 @@
-[0-9a-f]+[ 	]+w[ 	]+F[ 	]+\.(text|opd)[ 	]+[0-9a-f]+ (0x[0-9a-f]+ )?_?bar@VERS\.0
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[ 	]+[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@VERS\.0
-[0-9a-f]+[ 	]+g[ 	]+O[ 	]+\.s?data[ 	]+[0-9a-f]+ (0x[0-9a-f]+ )?_?foobar@VERS\.0
+[0-9a-f]+ +w(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?bar@VERS\.0
+[0-9a-f]+ +g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@VERS\.0
+[0-9a-f]+ +gO +\.s?data	[0-9a-f]+ (0x[0-9a-f]+ )?_?foobar@VERS\.0

ld/testsuite/ld-elfvers/vers22a.c

@@ -1,6 +1,6 @@
 #include "vers.h"
 
-SYMVER(_old_bar, bar@VERS.0);
+FUNC_SYMVER(_old_bar, bar@VERS.0);
 
 void
 _old_bar () 

ld/testsuite/ld-elfvers/vers22a.sym

@@ -1 +1 @@
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[ 	]+[0-9a-f]+ (0x[0-9a-f]+ )?_?bar@VERS.0
+[0-9a-f]+ +g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?bar@VERS.0

ld/testsuite/ld-elfvers/vers23a.c

@@ -1,6 +1,6 @@
 #include "vers.h"
 
-SYMVER(_old_bar, bar@VERS.0);
+FUNC_SYMVER(_old_bar, bar@VERS.0);
 
 void
 _old_bar (void) 

ld/testsuite/ld-elfvers/vers23a.sym

@@ -1 +1 @@
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[ 	]+[0-9a-f]+ (0x[0-9a-f]+ )?_?bar@VERS.0
+[0-9a-f]+ +g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?bar@VERS.0

ld/testsuite/ld-elfvers/vers27d.sym

@@ -1 +1 @@
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[ 	]+[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@VERS\.0
+[0-9a-f]+ +g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@VERS\.0

ld/testsuite/ld-elfvers/vers27d1.c

@@ -5,4 +5,4 @@ foo ()
 {
 }
 
-SYMVER(foo, foo@VERS.0);
+FUNC_SYMVER(foo, foo@VERS.0);

ld/testsuite/ld-elfvers/vers4.c

@@ -22,7 +22,7 @@ new_foo()
 
 }
 
-SYMVER(new_foo, foo@@VERS_2.0);
+FUNC_SYMVER(new_foo, foo@@VERS_2.0);
 
 int
 main()

ld/testsuite/ld-elfvers/vers4.sym

@@ -1 +1 @@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@@VERS_2\.0
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@@VERS_2\.0

ld/testsuite/ld-elfvers/vers4a.sym

@@ -1 +1 @@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@@VERS_2\.0
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@@VERS_2\.0

ld/testsuite/ld-elfvers/vers5.c

@@ -41,10 +41,10 @@ new_foo()
 
 }
 
-SYMVER(original_foo, foo@);
-SYMVER(old_foo, foo@VERS_1.1);
-SYMVER(old_foo1, foo@VERS_1.2);
-SYMVER(new_foo, foo@@VERS_1.2);
+FUNC_SYMVER(original_foo, foo@);
+FUNC_SYMVER(old_foo, foo@VERS_1.1);
+FUNC_SYMVER(old_foo1, foo@VERS_1.2);
+FUNC_SYMVER(new_foo, foo@@VERS_1.2);
 
 int
 main ()

ld/testsuite/ld-elfvers/vers6.c

@@ -20,7 +20,7 @@ main()
   return 0;
 }
 
-SYMVER(foo_1, show_foo@);
-SYMVER(foo_2, show_foo@VERS_1.1);
-SYMVER(foo_3, show_foo@VERS_1.2);
-SYMVER(foo_4, show_foo@VERS_2.0);
+FUNC_SYMVER(foo_1, show_foo@);
+FUNC_SYMVER(foo_2, show_foo@VERS_1.1);
+FUNC_SYMVER(foo_3, show_foo@VERS_1.2);
+FUNC_SYMVER(foo_4, show_foo@VERS_2.0);

ld/testsuite/ld-elfvers/vers6.sym

@@ -1,4 +1,4 @@
-0+ *F? *\*UND\*	0+ _?show_foo@
-0+ *F? *\*UND\*	0+ _?show_foo@VERS_1\.1
-0+ *F? *\*UND\*	0+ _?show_foo@VERS_1\.2
-0+ *F? *\*UND\*	0+ _?show_foo@VERS_2\.0
+0+ *F? *\*UND\*	0+ \.?_?show_foo@
+0+ *F? *\*UND\*	0+ \.?_?show_foo@VERS_1\.1
+0+ *F? *\*UND\*	0+ \.?_?show_foo@VERS_1\.2
+0+ *F? *\*UND\*	0+ \.?_?show_foo@VERS_2\.0

ld/testsuite/ld-elfvers/vers7a.c

@@ -16,5 +16,5 @@ __b_internal (int e)
   return e + 42;
 }
 
-SYMVER(__a_internal, hide_a@@VERS_1);
-SYMVER(__b_internal, show_b@@VERS_1);
+FUNC_SYMVER(__a_internal, hide_a@@VERS_1);
+FUNC_SYMVER(__b_internal, show_b@@VERS_1);

ld/testsuite/ld-elfvers/vers7a.sym

@@ -1,2 +1,2 @@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?hide_a@@VERS_1
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_b@@VERS_1
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?hide_a@@VERS_1
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?show_b@@VERS_1

ld/testsuite/ld-elfvers/vers9.c

@@ -43,7 +43,7 @@ main()
   return 0;
 }
 
-SYMVER(original_foo, foo@);
-SYMVER(old_foo, foo@VERS_1.1);
-SYMVER(old_foo1, foo@VERS_1.2);
-SYMVER(new_foo, foo@@VERS_1.2);
+FUNC_SYMVER(original_foo, foo@);
+FUNC_SYMVER(old_foo, foo@VERS_1.1);
+FUNC_SYMVER(old_foo1, foo@VERS_1.2);
+FUNC_SYMVER(new_foo, foo@@VERS_1.2);

ld/testsuite/ld-elfvers/vers9.sym

@@ -1,4 +1,4 @@
-0+ *F? *\*UND\*	0+ _?foo@VERS_1\.2
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@@VERS_1\.2
-[0-9a-f]+ g +F \.(text|opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@VERS_1\.1
+0+ *F? *\*UND\*	0+ \.?_?foo@VERS_1\.2
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@@VERS_1\.2
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ (0x[0-9a-f]+ )?_?foo@VERS_1\.1

ld/testsuite/ld-elfweak/elfweak.exp

@@ -82,9 +82,9 @@ proc objdump_symstuff { objdump object expectfile } {
 
     if ![info exists SOBJDUMP_FLAGS] { set SOBJDUMP_FLAGS "" }
 
-    verbose -log "$objdump $SOBJDUMP_FLAGS $object | grep foo$  > $tmpdir/objdump.out"
-
-    catch "exec $objdump $SOBJDUMP_FLAGS $object | grep foo$  > $tmpdir/objdump.out" exec_output
+    set cmd "$objdump $SOBJDUMP_FLAGS $object | sed -n {s/^\\(\[0-9a-f\]* *\\)\\(\[gw\]\\)\\( *\\)\\(\[FO\]\\)/\\1\\2\\4\\3/;/foo$/p} > $tmpdir/objdump.out"
+    verbose -log $cmd
+    catch "exec $cmd" exec_output
     set exec_output [prune_warnings $exec_output]
     if [string match "" $exec_output] then {
 
@@ -123,7 +123,8 @@ proc objdump_symstuff { objdump object expectfile } {
 	close $file_a
 
 	while { [gets $file_b line] != $eof } {
-	    if [regexp "^#.*$" $line] then {
+	    if [regexp {\.text.* \.[^ ]*$} $line] then {
+		# Discard defined powerpc64 dot-symbols
 		continue
 	    } else {
 		lappend list_b $line
@@ -177,9 +178,9 @@ proc objdump_dynsymstuff { objdump object expectfile } {
 
     if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }
 
-    verbose -log "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"
-
-    catch "exec $objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out" exec_output
+    set cmd "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"
+    verbose -log $cmd
+    catch "exec $cmd" exec_output
     set exec_output [prune_warnings $exec_output]
     if [string match "" $exec_output] then {
 
@@ -218,7 +219,8 @@ proc objdump_dynsymstuff { objdump object expectfile } {
 	close $file_a
 
 	while { [gets $file_b line] != $eof } {
-	    if [regexp "^#.*$" $line] then {
+	    if [regexp {\.text.* \.[^ ]*$} $line] then {
+		# Discard defined powerpc64 dot-symbols
 		continue
 	    } else {
 		lappend list_b $line

ld/testsuite/ld-elfweak/strong.sym

@@ -1 +1 @@
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[	]+[0-9a-f]+[ 	]+(0x[0-9a-f]+ )?foo
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ +(0x[0-9a-f]+ )?foo

ld/testsuite/ld-elfweak/strongcomm.sym

@@ -1,2 +1,2 @@
-[0-9a-f]+[ 	]+g[ 	]+O[ 	]+\.s?bss[	]+[0-9a-f]+[ 	]+deallocate_foo
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[	]+[0-9a-f]+[ 	]+(0x[0-9a-f]+ )?foo
+[0-9a-f]+ gO +\.s?bss	[0-9a-f]+ +deallocate_foo
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ +(0x[0-9a-f]+ )?foo

ld/testsuite/ld-elfweak/strongdata.sym

@@ -1,2 +1,2 @@
-[0-9a-f]+[ 	]+g[ 	]+O[ 	]+\.s?(data|bss)[	]+[0-9a-f]+[ 	]+deallocate_foo
-[0-9a-f]+[ 	]+g[ 	]+F[ 	]+\.(text|opd)[	]+[0-9a-f]+[ 	]+(0x[0-9a-f]+ )?foo
+[0-9a-f]+ gO +\.s?(data|bss)	[0-9a-f]+ +deallocate_foo
+[0-9a-f]+ g(F +\.text|F? +\.opd)	[0-9a-f]+ +(0x[0-9a-f]+ )?foo

ld/testsuite/ld-ifunc/pr16467b.c

@@ -1,5 +1,8 @@
 void new_sd_get_seats(void);
 __asm__(".symver new_sd_get_seats,sd_get_seats@LIBSYSTEMD_209");
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+__asm__(".symver .new_sd_get_seats,.sd_get_seats@LIBSYSTEMD_209");
+#endif
 void (*resolve_sd_get_seats(void)) (void) __asm__ ("sd_get_seats");
 void (*resolve_sd_get_seats(void)) (void) {
         return new_sd_get_seats;

ld/testsuite/ld-plugin/lto.exp

@@ -149,7 +149,7 @@ set lto_link_tests [list \
    {pr12760b.c} {} "libpr12760.a"] \
   [list "PR ld/12760" \
    "-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
-   {dummy.c} {} "pr12760.exe" "c" "pr12760a.c:6: warning: Bad bar"] \
+   {dummy.c} {} "pr12760.exe" "c" "pr12760a.c:6: warning: Bad \\.?bar"] \
   [list "Build libpr13183.a" \
    "-T" "-flto -O2 $lto_fat" \
    {pr13183a.c} {} "libpr13183.a"] \
@@ -392,21 +392,21 @@ if { [is_elf_format] && [check_lto_shared_available] } {
     run_cc_link_tests $lto_link_elf_tests
     set testname "PR ld/15146 (2)"
     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin -Wl,-rpath-link,. -Wl,--no-copy-dt-needed-entries -Wl,--no-as-needed tmpdir/pr15146d.o tmpdir/pr15146c.so"]
-    if { [ regexp "undefined reference to symbol 'xxx'" $exec_output ] } {
+    if { [ regexp "undefined reference to symbol '\\.?xxx'" $exec_output ] } {
 	pass $testname
     } {
 	fail $testname
     }
     set testname "PR ld/16746 (3)"
     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
-    if { [ regexp "warning: foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
+    if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 	pass $testname
     } {
 	fail $testname
     }
     set testname "PR ld/16746 (4)"
     set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
-    if { [ regexp "warning: foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
+    if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
 	pass $testname
     } {
 	fail $testname
@@ -455,7 +455,7 @@ if { [at_least_gcc_version 4 7] } {
     }
     set testname "PR ld/12942 (3)"
     set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
-    if { [ regexp "undefined reference to `link_error\\(\\)'" $exec_output ] } {
+    if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
         pass $testname
     } {
         fail $testname
@@ -492,7 +492,7 @@ proc pr20103 {cflags libs} {
 
     set testname "PR ld/20103 ($cflags $libs)"
     set exec_output [run_host_cmd "$CC" "$cflags $libs"]
-    if { [ regexp "undefined reference to `dead'" $exec_output ] } {
+    if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
         pass "$testname (1)"
     } {
         fail "$testname (1)"

ld/testsuite/ld-plugin/plugin-13.d

@@ -23,5 +23,5 @@ hook called: claim_file tmpdir/main.o \[@0/.* not claimed
 hook called: claim_file .*/ld/testsuite/ld-plugin/func.c \[@0/.* CLAIMED
 hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 #...
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 #...

ld/testsuite/ld-plugin/plugin-14.d

@@ -28,6 +28,6 @@ hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 #...
 hook called: all symbols read.
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.
 #...

ld/testsuite/ld-plugin/plugin-15.d

@@ -29,6 +29,6 @@ hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 #...
 hook called: all symbols read.
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.
 #...

ld/testsuite/ld-plugin/plugin-16.d

@@ -33,6 +33,6 @@ hook called: all symbols read.
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF
 Sym: '_?func2' Resolution: LDPR_PREVAILING_DEF_IRONLY
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.
 #...

ld/testsuite/ld-plugin/plugin-20.d

@@ -3,5 +3,5 @@ Input: func.c \(tmpdir/libfunc.a\)
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.

ld/testsuite/ld-plugin/plugin-21.d

@@ -3,5 +3,5 @@ Input: .*/ld/testsuite/ld-plugin/func.c \(.*/ld/testsuite/ld-plugin/func.c\)
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.

ld/testsuite/ld-plugin/plugin-22.d

@@ -3,5 +3,5 @@ hook called: all symbols read.
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.

ld/testsuite/ld-plugin/plugin-23.d

@@ -3,5 +3,5 @@ hook called: all symbols read.
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF.*
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.

ld/testsuite/ld-plugin/plugin-6.d

@@ -28,6 +28,6 @@ hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 #...
 hook called: all symbols read.
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.
 #...

ld/testsuite/ld-plugin/plugin-7.d

@@ -29,6 +29,6 @@ hook called: claim_file tmpdir/text.o \[@0/.* not claimed
 #...
 hook called: all symbols read.
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.
 #...

ld/testsuite/ld-plugin/plugin-8.d

@@ -33,6 +33,6 @@ hook called: all symbols read.
 Sym: '_?func' Resolution: LDPR_PREVAILING_DEF
 Sym: '_?func2' Resolution: LDPR_PREVAILING_DEF_IRONLY
 tmpdir/main.o: In function `main':
-.*main.c.*: undefined reference to `func'
+.*main.c.*: undefined reference to `\.?func'
 hook called: cleanup.
 #...

ld/testsuite/ld-plugin/plugin.exp

@@ -106,12 +106,16 @@ if { $can_compile && \
     set failed_compile 1
 }
 
+set dotsym 0
 if { $can_compile && !$failed_compile } {
     # Find out if symbols have prefix on this platform before setting tests.
     catch "exec $NM tmpdir/func.o" plugin_nm_output
     if { [regexp "_func" "$plugin_nm_output"] } {
 	set _ "_"
     }
+    if { [regexp "\\.func" "$plugin_nm_output"] } {
+	set dotsym 1
+    }
 }
 
 set testobjfiles "tmpdir/main.o tmpdir/func.o tmpdir/text.o"
@@ -121,6 +125,9 @@ set testsrcfiles_notext "tmpdir/main.o $srcdir/$subdir/func.c"
 # Rather than having libs we just define dummy values for anything
 # we may need to link a target exe; we aren't going to run it anyway.
 set libs "[ld_simple_link_defsyms] --defsym ${_}printf=${_}main --defsym ${_}puts=${_}main"
+if { $dotsym } {
+    append libs " --defsym .printf=.main --defsym .puts=.main"
+}
 
 set plugin_tests [list \
     [list "load plugin" "-plugin $plugin_path \

ld/testsuite/ld-plugin/pr12760b.c

@@ -1,7 +1,8 @@
-#define linker_warning(x, msg) \
-	static const char __warn_##x[] \
-	__attribute__((used, section(".gnu.warning." #x))) \
-	= msg
-
-void bar (void) {} 
-linker_warning(bar, "Bad bar"); 
+void bar (void) {}
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+static const char __warn_bar[]
+__attribute__ ((used, section (".gnu.warning..bar"))) = "Bad bar";
+#else
+static const char __warn_bar[]
+__attribute__ ((used, section (".gnu.warning.bar"))) = "Bad bar";
+#endif

ld/testsuite/ld-plugin/pr16746a.c

@@ -1,3 +1,7 @@
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
 static const char __evoke_link_warning_foobar[]
- __attribute__ ((used, section (".gnu.warning.foobar\n\t#")))
- = "foobar";
+__attribute__ ((used, section (".gnu.warning..foobar\n\t#"))) = "foobar";
+#else
+static const char __evoke_link_warning_foobar[]
+__attribute__ ((used, section (".gnu.warning.foobar\n\t#"))) = "foobar";
+#endif

ld/testsuite/ld-plugin/pr16746b.c

@@ -1,5 +1,11 @@
+#if defined __powerpc64__ && defined _CALL_AIXDESC && !defined _CALL_LINUX
+static const char __evoke_link_warning_foobar[]
+ __attribute__ ((used, section (".gnu.warning..foobar\n\t#")))
+ = "foobar";
+#else
 static const char __evoke_link_warning_foobar[]
  __attribute__ ((used, section (".gnu.warning.foobar\n\t#")))
  = "foobar";
+#endif
 
 void foobar (void) {}