Support R_PPC64_ADDR64_LOCAL

This adds support for "func@localentry", an expression that returns the
ELFv2 local entry point address of function "func".  I've excluded
dynamic relocation support because that obviously would require glibc
changes.

include/elf/
	* ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
bfd/
	* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry.
	(ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL.
	(ppc64_elf_check_relocs): Likewise.
	(ppc64_elf_relocate_section): Likewise.
	* Add BFD_RELOC_PPC64_ADDR64_LOCAL.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
gas/
	* config/tc-ppc.c (ppc_elf_suffix): Support @localentry.
	(md_apply_fix): Support R_PPC64_ADDR64_LOCAL.
ld/testsuite/
	* ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files.
	* ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files.
	* ld-powerpc/powerpc.exp: Run new test.
elfcpp/
	* powerpc.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
gold/
	* powerpc.cc (Target_powerpc::Scan::local, global): Support
	R_PPC64_ADDR64_LOCAL.
	(Target_powerpc::Relocate::relocate): Likewise.

6 files changed, 98 insertions, 0 deletions

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index 701b088..b083aec 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2014-03-05  Alan Modra  <amodra@gmail.com>
+
+	* ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files.
+	* ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files.
+	* ld-powerpc/powerpc.exp: Run new test.
+
 2014-03-03  Alan Modra  <amodra@gmail.com>
 
 	* ld-scripts/phdrs2.exp: Correct copyright punctuation.
diff --git a/ld/testsuite/ld-powerpc/elfv2-2a.s b/ld/testsuite/ld-powerpc/elfv2-2a.s
new file mode 100644
index 0000000..303087a
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/elfv2-2a.s
@@ -0,0 +1,27 @@
+ .globl f1
+ .type f1,@function
+ .text
+f1:
+ addis 2,12,.TOC.-f1@ha
+ addi 2,2,.TOC.-f1@l
+ .localentry f1,.-f1
+ blr
+ .size f1,.-f1
+
+ .globl f2
+ .type f2,@function
+ .text
+f2:
+ addi 2,12,.TOC.-f2
+ .localentry f2,.-f2
+ blr
+ .size f2,.-f2
+
+ .quad f1
+ .quad f1@localentry
+ .quad f2
+ .quad f2@localentry
+ .quad f3
+ .quad f3@localentry
+ .quad f4
+ .quad f4@localentry
diff --git a/ld/testsuite/ld-powerpc/elfv2-2b.s b/ld/testsuite/ld-powerpc/elfv2-2b.s
new file mode 100644
index 0000000..9c9d75e
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/elfv2-2b.s
@@ -0,0 +1,17 @@
+ .globl f3
+ .type f3,@function
+ .text
+f3:
+ addis 2,12,.TOC.-f3@ha
+ addi 2,2,.TOC.-f3@l
+ .localentry f3,.-f3
+ blr
+ .size f3,.-f3
+
+ .globl f4
+ .type f4,@function
+ .text
+f4:
+ .localentry f4,0
+ blr
+ .size f4,.-f4
diff --git a/ld/testsuite/ld-powerpc/elfv2-2exe.d b/ld/testsuite/ld-powerpc/elfv2-2exe.d
new file mode 100644
index 0000000..c8deda1
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/elfv2-2exe.d
@@ -0,0 +1,41 @@
+#source: elfv2-2a.s
+#source: elfv2-2b.s
+#as: -a64
+#ld: -melf64ppc -e f1
+#objdump: -dr
+
+.*
+
+Disassembly of section \.text:
+
+0+10000078 <f1>:
+.*:	(3c 40 10 01|01 10 40 3c) 	lis     r2,4097
+.*:	(38 42 80 78|78 80 42 38) 	addi    r2,r2,-32648
+.*:	(4e 80 00 20|20 00 80 4e) 	blr
+0+10000084 <f2>:
+.*:	(38 4c 7f f4|f4 7f 4c 38) 	addi    r2,r12,32756
+.*:	(4e 80 00 20|20 00 80 4e) 	blr
+.*:	(00 00 00 00|78 00 00 10) .*
+.*:	(10 00 00 78|00 00 00 00) .*
+.*:	(00 00 00 00|80 00 00 10) .*
+.*:	(10 00 00 80|00 00 00 00) .*
+.*:	(00 00 00 00|84 00 00 10) .*
+.*:	(10 00 00 84|00 00 00 00) .*
+.*:	(00 00 00 00|88 00 00 10) .*
+.*:	(10 00 00 88|00 00 00 00) .*
+.*:	(00 00 00 00|cc 00 00 10) .*
+.*:	(10 00 00 cc|00 00 00 00) .*
+.*:	(00 00 00 00|d4 00 00 10) .*
+.*:	(10 00 00 d4|00 00 00 00) .*
+.*:	(00 00 00 00|d8 00 00 10) .*
+.*:	(10 00 00 d8|00 00 00 00) .*
+.*:	(00 00 00 00|d8 00 00 10) .*
+.*:	(10 00 00 d8|00 00 00 00) .*
+
+0+100000cc <f3>:
+.*:	(3c 40 10 01|01 10 40 3c) 	lis     r2,4097
+.*:	(38 42 80 78|78 80 42 38) 	addi    r2,r2,-32648
+.*:	(4e 80 00 20|20 00 80 4e) 	blr
+
+0+100000d8 <f4>:
+.*:	(4e 80 00 20|20 00 80 4e) 	blr
diff --git a/ld/testsuite/ld-powerpc/elfv2-2so.d b/ld/testsuite/ld-powerpc/elfv2-2so.d
new file mode 100644
index 0000000..56b1434
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/elfv2-2so.d
@@ -0,0 +1,5 @@
+#source: elfv2-2a.s
+#source: elfv2-2b.s
+#as: -a64
+#ld: -melf64ppc -shared -e f1
+#error: .* R_PPC64_ADDR64_LOCAL reloc unsupported in shared libraries and PIEs.*
diff --git a/ld/testsuite/ld-powerpc/powerpc.exp b/ld/testsuite/ld-powerpc/powerpc.exp
index 87e4ea8..2e8c126 100644
--- a/ld/testsuite/ld-powerpc/powerpc.exp
+++ b/ld/testsuite/ld-powerpc/powerpc.exp
@@ -271,6 +271,8 @@ if [ supports_ppc64 ] then {
     run_dump_test "relbrlt"
     run_dump_test "elfv2so"
     run_dump_test "elfv2exe"
+    run_dump_test "elfv2-2so"
+    run_dump_test "elfv2-2exe"
 }
 
 if { [istarget "powerpc*-eabi*"] } {