PowerPC notoc linkage stubs

Use pcrel addressing instructions in linkage stubs.

bfd/
	* elf64-ppc.c: Comment on powerxx _notoc stub variants.
	(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
	(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
	(struct ppc_link_hash_table): Add powerxx_stubs.
	(ppc64_elf_check_relocs): Set powerxx_stubs.
	(build_powerxx_offset, size_powerxx_offset),
	(num_relocs_for_powerxx_offset),
	(emit_relocs_for_powerxx_offset): New functions.
	(plt_stub_size): Size powerxx stubs.
	(ppc_build_one_stub): Emit powerxx stubs.
	(ppc_size_one_stub): Size powerxx stubs.  Omit .eh_frame for
	powerxx stubs.
ld/
	* testsuite/ld-powerpc/notoc2.d,
	* testsuite/ld-powerpc/notoc2.s: New test.
	* testsuite/ld-powerpc/powerpc.exp: Run it.

3 files changed, 44 insertions, 0 deletions

diff --git a/ld/testsuite/ld-powerpc/notoc2.d b/ld/testsuite/ld-powerpc/notoc2.d
new file mode 100644
index 0000000..172835f
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/notoc2.d
@@ -0,0 +1,29 @@
+#source: notoc2.s
+#as: -a64 -mfuture
+#ld: -shared -z norelro
+#objdump: -d -Mfuture
+#target: powerpc64*-*-*
+
+.*
+
+Disassembly of section \.text:
+
+.* <.*\.plt_call\.puts>:
+.*:	(04 10 00 01|01 00 10 04) 	pld     r12,66200
+.*:	(e5 80 02 98|98 02 80 e5) 
+.*:	(7d 89 03 a6|a6 03 89 7d) 	mtctr   r12
+.*:	(4e 80 04 20|20 04 80 4e) 	bctr
+#...
+.*:	(04 13 ff ff|ff ff 13 04) 	pld     r12,-1
+.*:	(e5 80 ff ff|ff ff 80 e5) 
+.*:	(04 10 00 00|00 00 10 04) 	pld     r12,0
+.*:	(e5 80 00 00|00 00 80 e5) 
+.*:	(06 13 ff ff|ff ff 13 06) 	pla     r12,-1
+.*:	(39 80 ff ff|ff ff 80 39) 
+.*:	(06 10 00 00|00 00 10 06) 	pla     r12,0
+.*:	(39 80 00 00|00 00 80 39) 
+.*:	(06 10 00 00|00 00 10 06) 	pla     r3,92
+.*:	(38 60 00 5c|5c 00 60 38) 
+.*:	(4b ff ff 99|99 ff ff 4b) 	bl      .* <.*\.plt_call\.puts>
+.*:	(60 00 00 00|00 00 00 60) 	nop
+#pass
diff --git a/ld/testsuite/ld-powerpc/notoc2.s b/ld/testsuite/ld-powerpc/notoc2.s
new file mode 100644
index 0000000..3a4274c
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/notoc2.s
@@ -0,0 +1,13 @@
+ .text
+ .weak puts
+ pld 12,-1(0),1
+ pld 12,0(0),1
+ paddi 12,0,-1,1
+ paddi 12,0,0,1
+0:
+ paddi 3,0,hello-.,1
+ bl puts@notoc
+ nop
+ b 0b
+ .section .rodata
+hello:	.asciz "Hello!"
diff --git a/ld/testsuite/ld-powerpc/powerpc.exp b/ld/testsuite/ld-powerpc/powerpc.exp
index 658f319..af4d13e 100644
--- a/ld/testsuite/ld-powerpc/powerpc.exp
+++ b/ld/testsuite/ld-powerpc/powerpc.exp
@@ -260,6 +260,8 @@ set ppc64elftests {
     {"notoc ext" "" "" "-a64" {ext.s} {} ""}
     {"notoc" "-melf64ppc --no-plt-localentry -T ext.lnk" "" "-a64" {notoc.s}
 	{{objdump -d notoc.d} {readelf {-wf -W} notoc.wf}} "notoc"}
+    {"notoc2" "-melf64ppc -shared" "" "-a64 -mfuture" {notoc2.s}
+	{{objdump {-d -Mfuture} notoc2.d}} "notoc2"}
     {"pcrelopt" "-melf64ppc --hash-style=gnu" "tmpdir/symtocbase.so"
 	"-a64 -mfuture" {pcrelopt.s}
 	{{objdump {-d -Mfuture} pcrelopt.d}