From b80e421f9136117389be9d96210b35b3d562d725 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Tue, 2 Mar 2021 21:25:20 +1030
Subject: PR27451, -z start_stop_gc for powerpc64

PowerPC64 has its own gc_mark_dynamic_ref.

bfd/
	PR 27451
	* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Ignore synthesized
	linker defined start/stop symbols when start_stop_gc.
ld/
	* testsuite/ld-powerpc/startstop.d,
	* testsuite/ld-powerpc/startstop.r,
	* testsuite/ld-powerpc/startstop.s: New test.
	* testsuite/ld-powerpc/powerpc.exp: Run it.
---
 ld/ChangeLog                        |  7 +++++++
 ld/testsuite/ld-powerpc/powerpc.exp |  3 +++
 ld/testsuite/ld-powerpc/startstop.d | 10 ++++++++++
 ld/testsuite/ld-powerpc/startstop.r |  2 ++
 ld/testsuite/ld-powerpc/startstop.s | 16 ++++++++++++++++
 5 files changed, 38 insertions(+)
 create mode 100644 ld/testsuite/ld-powerpc/startstop.d
 create mode 100644 ld/testsuite/ld-powerpc/startstop.r
 create mode 100644 ld/testsuite/ld-powerpc/startstop.s

(limited to 'ld')

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 2bb97bd..d12e537 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,12 @@
 2021-03-02  Alan Modra  <amodra@gmail.com>
 
+	* testsuite/ld-powerpc/startstop.d,
+	* testsuite/ld-powerpc/startstop.r,
+	* testsuite/ld-powerpc/startstop.s: New test.
+	* testsuite/ld-powerpc/powerpc.exp: Run it.
+
+2021-03-02  Alan Modra  <amodra@gmail.com>
+
 	* testsuite/ld-powerpc/weak1.d,
 	* testsuite/ld-powerpc/weak1.r,
 	* testsuite/ld-powerpc/weak1.s,
diff --git a/ld/testsuite/ld-powerpc/powerpc.exp b/ld/testsuite/ld-powerpc/powerpc.exp
index 8aa0ecc..2ac02b1 100644
--- a/ld/testsuite/ld-powerpc/powerpc.exp
+++ b/ld/testsuite/ld-powerpc/powerpc.exp
@@ -350,6 +350,9 @@ set ppc64elftests {
     {"weak1.so" "-shared -melf64ppc --hash-style=both" ""
 	"-a64 -mpower10" {weak1.s}
 	{{objdump -d weak1so.d} {readelf {-srW} weak1so.r}} "weak1.so"}
+    {"startstop" "-shared -melf64ppc --hash-style=sysv --gc-sections -z start-stop-gc" ""
+	"-a64 -mpower10" {startstop.s}
+	{{objdump -d startstop.d} {readelf {-rW} startstop.r}} "startstop.so"}
 }
 
 set ppceabitests {
diff --git a/ld/testsuite/ld-powerpc/startstop.d b/ld/testsuite/ld-powerpc/startstop.d
new file mode 100644
index 0000000..2bf4c73
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/startstop.d
@@ -0,0 +1,10 @@
+
+.*:     file format .*
+
+Disassembly of section \.text:
+
+0+140 <_start>:
+ 140:	(04 10 00 01|01 00 10 04) 	pld     r3,66000
+ 144:	(e4 60 01 d0|d0 01 60 e4) 
+ 148:	(04 10 00 01|01 00 10 04) 	pld     r4,65984
+ 14c:	(e4 80 01 c0|c0 01 80 e4) 
diff --git a/ld/testsuite/ld-powerpc/startstop.r b/ld/testsuite/ld-powerpc/startstop.r
new file mode 100644
index 0000000..9a583fb
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/startstop.r
@@ -0,0 +1,2 @@
+
+There are no relocations in this file.
diff --git a/ld/testsuite/ld-powerpc/startstop.s b/ld/testsuite/ld-powerpc/startstop.s
new file mode 100644
index 0000000..8e88a72
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/startstop.s
@@ -0,0 +1,16 @@
+ .weak __start_xx
+ .weak __stop_xx
+
+ .global _start
+_start:
+  pld 3,__start_xx@got@pcrel
+  pld 4,__stop_xx@got@pcrel
+
+ .section xx,"a",unique,0
+ .byte 0
+
+ .section xx,"a",unique,1
+ .byte 1
+
+ .section xx,"a",unique,2
+ .byte 2
-- 
cgit v1.1