testsuite: Handle composed R_MIPS_NONE relocations

MIPS n64 ABI has a peculiarity where all relocations are composed of
three, with subsequent relocation types set to R_MIPS_NONE if further
calculation is not required.  Example output produced by `readelf' and
`objdump' for such relocations is:

  Offset          Info           Type           Sym. Value    Sym. Name + Addend
000000000000  000800000002 R_MIPS_32         0000000000000000 foo + 0
                    Type2: R_MIPS_NONE
                    Type3: R_MIPS_NONE

and:

OFFSET           TYPE              VALUE
0000000000000000 R_MIPS_32         foo
0000000000000000 R_MIPS_NONE       *ABS*
0000000000000000 R_MIPS_NONE       *ABS*

respectively.  The presence of these extra R_MIPS_NONE entries is not
relevant for generic or even some MIPS tests, so optionally match them
with the respective dump patterns, also discarding `xfail' annotation
for MIPS/OpenBSD targets from gas/elf/missing-build-notes.d, removing
these regressions:

mips64-openbsd  -FAIL: readelf -r bintest
mips64-openbsd  -FAIL: forward expression
mips64-openbsd  -FAIL: assignment tests
mips64-openbsd  -FAIL: gas/all/none
mips64-openbsd  -XFAIL: gas/elf/missing-build-notes
mips64-openbsd  -FAIL: macro test 2
mips64-openbsd  -FAIL: macro irp
mips64-openbsd  -FAIL: macro rept
mips64-openbsd  -FAIL: nested irp/irpc/rept
mips64-openbsd  -FAIL: macro vararg
mips64-openbsd  -FAIL: mips jalx
mips64-openbsd  -FAIL: ST Microelectronics Loongson-2F workarounds of Jump Instruction issue
mips64el-openbsd  -FAIL: readelf -r bintest
mips64el-openbsd  -FAIL: forward expression
mips64el-openbsd  -FAIL: assignment tests
mips64el-openbsd  -FAIL: gas/all/none
mips64el-openbsd  -XFAIL: gas/elf/missing-build-notes
mips64el-openbsd  -FAIL: macro test 2
mips64el-openbsd  -FAIL: macro irp
mips64el-openbsd  -FAIL: macro rept
mips64el-openbsd  -FAIL: nested irp/irpc/rept
mips64el-openbsd  -FAIL: macro vararg
mips64el-openbsd  -FAIL: mips jalx
mips64el-openbsd  -FAIL: ST Microelectronics Loongson-2F workarounds of Jump Instruction issue

Co-Authored-By: Maciej W. Rozycki <macro@orcam.me.uk>

	binutils/
	* testsuite/binutils-all/readelf.r-64: Optionally match extra
	R_MIPS_NONE pairs.

	gas/
	* testsuite/gas/all/assign.d: Optionally match extra
	R_MIPS_NONE pairs.
	* testsuite/gas/all/fwdexp.d: Likewise.
	* testsuite/gas/all/none.d: Likewise.
	* testsuite/gas/macros/irp.d: Likewise.
	* testsuite/gas/macros/repeat.d: Likewise.
	* testsuite/gas/macros/rept.d: Likewise.
	* testsuite/gas/macros/test2.d: Likewise.
	* testsuite/gas/macros/vararg.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-1.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-2.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-3.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-4.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-5.d: Likewise.
	* testsuite/gas/mips/compact-eh-eb-6.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-1.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-2.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-3.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-4.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-5.d: Likewise.
	* testsuite/gas/mips/compact-eh-el-6.d: Likewise.
	* testsuite/gas/mips/loongson-2f-3.d: Likewise.
	* testsuite/gas/mips/mips-jalx.d: Likewise.
	* testsuite/gas/elf/missing-build-notes.d: Likewise.  Remove
	the `xfail' tag.

	ld/
	* testsuite/ld-mips-elf/reloc-estimate-1.d: Optionally match
	extra R_MIPS_NONE pairs.

binutils/testsuite/binutils-all/readelf.r-64

@@ -2,3 +2,5 @@
 Relocation section '.rel.*text' at offset 0x.* contains 1 entry:
   Offset          Info           Type           Sym. Value    Sym. Name.*
 0+04  [0-9A-Fa-f]+ *R_.*0+00 external_symbol.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*

gas/testsuite/gas/all/assign.d

@@ -3,5 +3,9 @@
 
 #...
 .*zzz.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 .*zzz.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/all/fwdexp.d

@@ -6,6 +6,8 @@
 RELOCATION RECORDS FOR .*
 OFFSET +TYPE +VALUE
 0+ .*(\.data|label_i)(|\+0xf+e|\+0xf+c|\+0xf+8|-0x0*2|-0x0*4|-0x0*8)
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 Contents of section .*
  0+ (0+|feff|fffe|fcffffff|fffffffc|f8ffffff|f8ffffff ffffffff|ffffffff fffffff8|0+4) .*

gas/testsuite/gas/all/none.d

@@ -5,3 +5,5 @@
 
 #...
 0+ .*(NONE|NULL|UNUSED0) +\*ABS\*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*

gas/testsuite/gas/elf/missing-build-notes.d

@@ -1,14 +1,21 @@
 # as: --generate-missing-build-notes=yes
 # objdump: -r
-#xfail: mips*-*-openbsd
 
 # Check that the relocations are for increasing addresses...
 
 #...
 RELOCATION RECORDS FOR \[.gnu.build.attributes\]:
 OFFSET +TYPE +VALUE
 0+014 .*[ 	]+.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+0(18|1c) .*[ 	]+.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+0(30|38) .*[ 	]+.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+0(34|40) .*[ 	]+.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/macros/irp.d

@@ -8,9 +8,21 @@
 RELOCATION RECORDS FOR .*
 OFFSET[ 	]+TYPE[ 	]+VALUE.*
 0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo3
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+0c[ 	]+[a-zA-Z0-9_]+[ 	]+bar1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+10[ 	]+[a-zA-Z0-9_]+[ 	]+bar2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+14[ 	]+[a-zA-Z0-9_]+[ 	]+bar3
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/macros/repeat.d

@@ -8,39 +8,111 @@
 RELOCATION RECORDS FOR .*
 OFFSET[ 	]+TYPE[ 	]+VALUE.*
 0+00[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_19
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+04[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_18
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+08[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_29
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+0c[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irp_28
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+10[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_19
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+14[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_18
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+18[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_29
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+1c[ 	]+[a-zA-Z0-9_]+[ 	]+irp_irpc_28
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+20[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+24[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+28[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+2c[ 	]+[a-zA-Z0-9_]+[ 	]+irp_rept_2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+30[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_19
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+34[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_18
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+38[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_29
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+3c[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irp_28
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+40[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_19
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+44[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_18
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+48[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_29
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+4c[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_irpc_28
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+50[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+54[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+58[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+5c[ 	]+[a-zA-Z0-9_]+[ 	]+irpc_rept_2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+60[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_9
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+64[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_8
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+68[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_9
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+6c[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irp_8
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+70[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_9
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+74[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_8
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+78[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_9
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+7c[ 	]+[a-zA-Z0-9_]+[ 	]+rept_irpc_8
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+80[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+84[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+88[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+8c[ 	]+[a-zA-Z0-9_]+[ 	]+rept_rept
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/macros/rept.d

@@ -8,6 +8,12 @@
 RELOCATION RECORDS FOR .*
 OFFSET[ 	]+TYPE[ 	]+VALUE.*
 0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/macros/test2.d

@@ -8,6 +8,12 @@
 RELOCATION RECORDS FOR .*
 OFFSET[ 	]+TYPE[ 	]+VALUE.*
 0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo3
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/macros/vararg.d

@@ -8,9 +8,21 @@
 RELOCATION RECORDS FOR .*
 OFFSET[ 	]+TYPE[ 	]+VALUE.*
 0+00[ 	]+[a-zA-Z0-9_]+[ 	]+foo1
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+04[ 	]+[a-zA-Z0-9_]+[ 	]+foo2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+08[ 	]+[a-zA-Z0-9_]+[ 	]+foo3
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+0c[ 	]+[a-zA-Z0-9_]+[ 	]+foo4
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+10[ 	]+[a-zA-Z0-9_]+[ 	]+foo5
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+14[ 	]+[a-zA-Z0-9_]+[ 	]+foo6
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 #pass

gas/testsuite/gas/mips/compact-eh-eb-1.d

@@ -9,6 +9,8 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text:

gas/testsuite/gas/mips/compact-eh-eb-2.d

@@ -9,17 +9,25 @@
 RELOCATION RECORDS FOR \[.data.DW.ref.__gnu_compact_pr2\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_32         __gnu_compact_pr2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 RELOCATION RECORDS FOR \[.gnu_extab\]:
 OFFSET +TYPE +VALUE
 0+000001 R_MIPS_PC32       DW.ref.__gnu_compact_pr2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .group:

gas/testsuite/gas/mips/compact-eh-eb-3.d

@@ -9,7 +9,11 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text:

gas/testsuite/gas/mips/compact-eh-eb-4.d

@@ -9,7 +9,11 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text:

gas/testsuite/gas/mips/compact-eh-eb-5.d

@@ -9,17 +9,25 @@
 RELOCATION RECORDS FOR \[.data.DW.ref.__gnu_compact_pr2\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_32         __gnu_compact_pr2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 RELOCATION RECORDS FOR \[.gnu_extab\]:
 OFFSET +TYPE +VALUE
 0+000001 R_MIPS_PC32       DW.ref.__gnu_compact_pr2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .group:

gas/testsuite/gas/mips/compact-eh-eb-6.d

@@ -9,7 +9,11 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text:

gas/testsuite/gas/mips/compact-eh-el-1.d

@@ -9,6 +9,8 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text:

gas/testsuite/gas/mips/compact-eh-el-2.d

@@ -9,17 +9,25 @@
 RELOCATION RECORDS FOR \[.data.DW.ref.__gnu_compact_pr2\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_32         __gnu_compact_pr2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 RELOCATION RECORDS FOR \[.gnu_extab\]:
 OFFSET +TYPE +VALUE
 0+000001 R_MIPS_PC32       DW.ref.__gnu_compact_pr2
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .group:

gas/testsuite/gas/mips/compact-eh-el-3.d

@@ -9,7 +9,11 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text:

gas/testsuite/gas/mips/compact-eh-el-4.d

@@ -9,7 +9,11 @@
 RELOCATION RECORDS FOR \[.eh_frame_entry\]:
 OFFSET +TYPE +VALUE
 0+000000 R_MIPS_PC32       .text.*
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 0+000004 R_MIPS_PC32       .gnu_extab
+#?.*R_MIPS_NONE.*
+#?.*R_MIPS_NONE.*
 
 
 Contents of section .text: