include/elf/

	* mips.h (EF_MIPS_NAN2008): New macro.

	bfd/
	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Handle
	EF_MIPS_NAN2008.
	(_bfd_mips_elf_print_private_bfd_data): Likewise.

	binutils/
	* readelf.c (get_machine_flags): Handle EF_MIPS_NAN2008.

	gas/
	* config/tc-mips.c (mips_flag_nan2008): New variable.
	(options): Add OPTION_NAN enum value.
	(md_longopts): Handle it.
	(md_parse_option): Likewise.
	(s_nan): New function.
	(mips_elf_final_processing): Handle EF_MIPS_NAN2008.
	(md_show_usage): Add -mnan.

	* doc/as.texinfo (Overview): Add -mnan.
	* doc/c-mips.texi (MIPS Opts): Document -mnan.
	(MIPS NaN Encodings): New node.  Document .nan directive.
	(MIPS-Dependent): List the new node.

	gas/testsuite/
	* gas/mips/nan-2008-1.d: New test.
	* gas/mips/nan-2008-2.d: New test.
	* gas/mips/nan-2008-3.d: New test.
	* gas/mips/nan-2008-4.d: New test.
	* gas/mips/nan-legacy-1.d: New test.
	* gas/mips/nan-legacy-2.d: New test.
	* gas/mips/nan-legacy-3.d: New test.
	* gas/mips/nan-legacy-4.d: New test.
	* gas/mips/nan-legacy-5.d: New test.
	* gas/mips/nan-error-1.l: New list test.
	* gas/mips/nan-error-2.l: New list test.
	* gas/mips/nan-2008-override.s: New test source.
	* gas/mips/nan-2008.s: New test source.
	* gas/mips/nan-legacy-override.s: New test source.
	* gas/mips/nan-legacy.s: New test source.
	* gas/mips/nan-error-1.s: New test source.
	* gas/mips/nan-error-2.s: New test source.
	* gas/mips/mips.exp: Run the new tests.

	ld/testsuite/
	* ld-mips-elf/nan-2008.d: New test.
	* ld-mips-elf/nan-legacy.d: New test.
	* ld-mips-elf/nan-mixed-1.d: New test.
	* ld-mips-elf/nan-mixed-2.d: New test.
	* ld-mips-elf/nan-2008.s: New test source.
	* ld-mips-elf/nan-legacy.s: New test source.

8 files changed, 51 insertions, 0 deletions

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index a4635705f7..febe691042 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,12 @@
+2013-07-12  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* ld-mips-elf/nan-2008.d: New test.
+	* ld-mips-elf/nan-legacy.d: New test.
+	* ld-mips-elf/nan-mixed-1.d: New test.
+	* ld-mips-elf/nan-mixed-2.d: New test.
+	* ld-mips-elf/nan-2008.s: New test source.
+	* ld-mips-elf/nan-legacy.s: New test source.
+
 2013-07-03  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 
 	* ld-aarch64/emit-relocs-309.s: Replace got_prel19 with got.
diff --git a/ld/testsuite/ld-mips-elf/mips-elf.exp b/ld/testsuite/ld-mips-elf/mips-elf.exp
index e0ddac9edf..24ecf956ca 100644
--- a/ld/testsuite/ld-mips-elf/mips-elf.exp
+++ b/ld/testsuite/ld-mips-elf/mips-elf.exp
@@ -666,6 +666,11 @@ run_dump_test "attr-gnu-4-44"
 run_dump_test "attr-gnu-4-45"
 run_dump_test "attr-gnu-4-51"
 
+run_dump_test "nan-legacy"
+run_dump_test "nan-2008"
+run_dump_test "nan-mixed-1"
+run_dump_test "nan-mixed-2"
+
 if { $linux_gnu } {
     run_ld_link_tests {
 	{"GOT and versioning 1"
diff --git a/ld/testsuite/ld-mips-elf/nan-2008.d b/ld/testsuite/ld-mips-elf/nan-2008.d
new file mode 100644
index 0000000000..aa20049f68
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/nan-2008.d
@@ -0,0 +1,7 @@
+#source: nan-2008.s
+#source: nan-2008.s
+#ld: -r
+#objdump: -p
+
+.*:.*file format.*mips.*
+private flags = [0-9a-f]*[4-7c-f]..: .*[[,]nan2008[],].*
diff --git a/ld/testsuite/ld-mips-elf/nan-2008.s b/ld/testsuite/ld-mips-elf/nan-2008.s
new file mode 100644
index 0000000000..a87cbab919
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/nan-2008.s
@@ -0,0 +1,6 @@
+	.nan	2008
+
+# We need some section contents for the ELF header flag compatibility check
+# to trigger.
+	.data
+	.byte	0
diff --git a/ld/testsuite/ld-mips-elf/nan-legacy.d b/ld/testsuite/ld-mips-elf/nan-legacy.d
new file mode 100644
index 0000000000..081abcfd94
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/nan-legacy.d
@@ -0,0 +1,8 @@
+#source: nan-legacy.s
+#source: nan-legacy.s
+#ld: -r
+#objdump: -p
+
+.*:.*file format.*mips.*
+#failif
+private flags = [0-9a-f]*[4-7c-f]..: .*[[]nan2008[]].*
diff --git a/ld/testsuite/ld-mips-elf/nan-legacy.s b/ld/testsuite/ld-mips-elf/nan-legacy.s
new file mode 100644
index 0000000000..b0c0c6760e
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/nan-legacy.s
@@ -0,0 +1,6 @@
+	.nan	legacy
+
+# We need some section contents for the ELF header flag compatibility check
+# to trigger.
+	.data
+	.byte	0
diff --git a/ld/testsuite/ld-mips-elf/nan-mixed-1.d b/ld/testsuite/ld-mips-elf/nan-mixed-1.d
new file mode 100644
index 0000000000..9bc524c555
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/nan-mixed-1.d
@@ -0,0 +1,5 @@
+#source: nan-legacy.s
+#source: nan-2008.s
+#ld: -r
+#error: \A[^\n]*: [^\n]* linking -mnan=2008 module with previous -mnan=legacy modules\n
+#error:   [^\n]*: failed to merge target specific data of file [^\n]*\.o\Z
diff --git a/ld/testsuite/ld-mips-elf/nan-mixed-2.d b/ld/testsuite/ld-mips-elf/nan-mixed-2.d
new file mode 100644
index 0000000000..388d770966
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/nan-mixed-2.d
@@ -0,0 +1,5 @@
+#source: nan-2008.s
+#source: nan-legacy.s
+#ld: -r
+#error: \A[^\n]*: [^\n]* linking -mnan=legacy module with previous -mnan=2008 modules\n
+#error:   [^\n]*: failed to merge target specific data of file [^\n]*\.o\Z