PowerPC64: remove empty .rela.dyn (.rela.branch_lt)

Stripping .rela.branch_lt is easy enough but messes with the
testsuite due to stub symbols (that use section id) changing.  Tests
that run on more than one target variant can be tricky to fix, this
renaming happened to work.

bfd/
	* elf64-ppc.c (ppc64_elf_size_stubs): Strip relbrlt too.
ld/
	* testsuite/ld-powerpc/tlsopt5.s: Rename foo to aaaaa.
	* testsuite/ld-powerpc/tlsopt5.d: Adjust to suit.
	* testsuite/ld-powerpc/tlsopt6.d: Likewise.

6 files changed, 26 insertions, 14 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 9d5f1cb..f88e883 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,7 @@
+2020-04-20  Alan Modra  <amodra@gmail.com>
+
+	* elf64-ppc.c (ppc64_elf_size_stubs): Strip relbrlt too.
+
 2020-04-18  Alan Modra  <amodra@gmail.com>
 
 	* section.c (bfd_is_const_section): Correct test for special
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 63de3ab..53e5d91 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -13772,6 +13772,8 @@ ppc64_elf_size_stubs (struct bfd_link_info *info)
     }
 
   maybe_strip_output (info, htab->brlt);
+  if (htab->relbrlt != NULL)
+    maybe_strip_output (info, htab->relbrlt);
   if (htab->glink_eh_frame != NULL)
     maybe_strip_output (info, htab->glink_eh_frame);
 
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 0f4abca..dffd363 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,9 @@
+2020-04-20  Alan Modra  <amodra@gmail.com>
+
+	* testsuite/ld-powerpc/tlsopt5.s: Rename foo to aaaaa.
+	* testsuite/ld-powerpc/tlsopt5.d: Adjust to suit.
+	* testsuite/ld-powerpc/tlsopt6.d: Likewise.
+
 2020-04-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* testsuite/ld-elf/warn1.d: Don't xfail on 64-bit Solaris/SPARC.
diff --git a/ld/testsuite/ld-powerpc/tlsopt5.d b/ld/testsuite/ld-powerpc/tlsopt5.d
index 596c426..0fcb798 100644
--- a/ld/testsuite/ld-powerpc/tlsopt5.d
+++ b/ld/testsuite/ld-powerpc/tlsopt5.d
@@ -8,9 +8,9 @@
 
 Disassembly of section \.text:
 
-.* <.*\.plt_call\.foo>:
+.* <.*\.plt_call\.aaaaa>:
 .*:	(18 00 41 f8|f8 41 00 18) 	std     r2,24\(r1\)
-.*:	(28 80 82 e9|e9 82 80 28) 	ld      r12,-32728\(r2\)
+.*:	(30 80 82 e9|e9 82 80 30) 	ld      r12,-32720\(r2\)
 .*:	(a6 03 89 7d|7d 89 03 a6) 	mtctr   r12
 .*:	(20 04 80 4e|4e 80 04 20) 	bctr
 	\.\.\.
@@ -26,7 +26,7 @@ Disassembly of section \.text:
 .*:	(a6 02 08 7c|7c 08 02 a6) 	mflr    r0
 .*:	(08 00 01 f8|f8 01 00 08) 	std     r0,8\(r1\)
 .*:	(18 00 41 f8|f8 41 00 18) 	std     r2,24\(r1\)
-.*:	(30 80 82 e9|e9 82 80 30) 	ld      r12,-32720\(r2\)
+.*:	(28 80 82 e9|e9 82 80 28) 	ld      r12,-32728\(r2\)
 .*:	(a6 03 89 7d|7d 89 03 a6) 	mtctr   r12
 .*:	(21 04 80 4e|4e 80 04 21) 	bctrl
 .*:	(18 00 41 e8|e8 41 00 18) 	ld      r2,24\(r1\)
@@ -39,7 +39,7 @@ Disassembly of section \.text:
 .*:	(08 80 62 38|38 62 80 08) 	addi    r3,r2,-32760
 .*:	(9d ff ff 4b|4b ff ff 9d) 	bl      .* <.*\.plt_call\.__tls_get_addr_opt@@GLIBC_2\.22>
 .*:	(00 00 00 60|60 00 00 00) 	nop
-.*:	(75 ff ff 4b|4b ff ff 75) 	bl      .* <.*\.plt_call\.foo>
+.*:	(75 ff ff 4b|4b ff ff 75) 	bl      .* <.*\.plt_call\.aaaaa>
 .*:	(18 00 41 e8|e8 41 00 18) 	ld      r2,24\(r1\)
 .*:	(00 00 00 60|60 00 00 00) 	nop
 .*
@@ -61,8 +61,8 @@ Disassembly of section \.text:
 .*:	(08 00 6b e9|e9 6b 00 08) 	ld      r11,8\(r11\)
 .*:	(20 04 80 4e|4e 80 04 20) 	bctr
 
-.* <foo@plt>:
+.* <__tls_get_addr_opt@plt>:
 .*	(c8 ff ff 4b|4b ff ff c8) 	b       .*
 
-.* <__tls_get_addr_opt@plt>:
+.* <aaaaa@plt>:
 .*:	(c4 ff ff 4b|4b ff ff c4) 	b       .*
diff --git a/ld/testsuite/ld-powerpc/tlsopt5.s b/ld/testsuite/ld-powerpc/tlsopt5.s
index 7cb82db..004279a 100644
--- a/ld/testsuite/ld-powerpc/tlsopt5.s
+++ b/ld/testsuite/ld-powerpc/tlsopt5.s
@@ -1,10 +1,10 @@
  .globl _start
- .weak foo
+ .weak aaaaa
 _start:
  .cfi_startproc
  addi 3,2,gd@got@tlsgd
  bl __tls_get_addr(gd@tlsgd)
  nop
- bl foo
+ bl aaaaa
  nop
  .cfi_endproc
diff --git a/ld/testsuite/ld-powerpc/tlsopt6.d b/ld/testsuite/ld-powerpc/tlsopt6.d
index 4100302..4ca6409 100644
--- a/ld/testsuite/ld-powerpc/tlsopt6.d
+++ b/ld/testsuite/ld-powerpc/tlsopt6.d
@@ -8,9 +8,9 @@
 
 Disassembly of section \.text:
 
-.* <.*\.plt_call\.foo>:
+.* <.*\.plt_call\.aaaaa>:
 .*:	(18 00 41 f8|f8 41 00 18) 	std     r2,24\(r1\)
-.*:	(28 80 82 e9|e9 82 80 28) 	ld      r12,-32728\(r2\)
+.*:	(30 80 82 e9|e9 82 80 30) 	ld      r12,-32720\(r2\)
 .*:	(a6 03 89 7d|7d 89 03 a6) 	mtctr   r12
 .*:	(20 04 80 4e|4e 80 04 20) 	bctr
 	\.\.\.
@@ -35,7 +35,7 @@ Disassembly of section \.text:
 .*:	(f8 ff 61 f9|f9 61 ff f8) 	std     r11,-8\(r1\)
 .*:	(a1 ff 21 f8|f8 21 ff a1) 	stdu    r1,-96\(r1\)
 .*:	(18 00 41 f8|f8 41 00 18) 	std     r2,24\(r1\)
-.*:	(30 80 82 e9|e9 82 80 30) 	ld      r12,-32720\(r2\)
+.*:	(28 80 82 e9|e9 82 80 28) 	ld      r12,-32728\(r2\)
 .*:	(a6 03 89 7d|7d 89 03 a6) 	mtctr   r12
 .*:	(21 04 80 4e|4e 80 04 21) 	bctrl
 .*:	(18 00 41 e8|e8 41 00 18) 	ld      r2,24\(r1\)
@@ -57,7 +57,7 @@ Disassembly of section \.text:
 .*:	(08 80 62 38|38 62 80 08) 	addi    r3,r2,-32760
 .*:	(5d ff ff 4b|4b ff ff 5d) 	bl      .* <.*\.plt_call\.__tls_get_addr_opt@@GLIBC_2\.22>
 .*:	(00 00 00 60|60 00 00 00) 	nop
-.*:	(35 ff ff 4b|4b ff ff 35) 	bl      .* <.*\.plt_call\.foo>
+.*:	(35 ff ff 4b|4b ff ff 35) 	bl      .* <.*\.plt_call\.aaaaa>
 .*:	(18 00 41 e8|e8 41 00 18) 	ld      r2,24\(r1\)
 .*:	(00 00 00 60|60 00 00 00) 	nop
 .*
@@ -79,8 +79,8 @@ Disassembly of section \.text:
 .*:	(08 00 6b e9|e9 6b 00 08) 	ld      r11,8\(r11\)
 .*:	(20 04 80 4e|4e 80 04 20) 	bctr
 
-.* <foo@plt>:
+.* <__tls_get_addr_opt@plt>:
 .*	(c8 ff ff 4b|4b ff ff c8) 	b       .*
 
-.* <__tls_get_addr_opt@plt>:
+.* <aaaaa@plt>:
 .*:	(c4 ff ff 4b|4b ff ff c4) 	b       .*