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-rw-r--r--bfd/ChangeLog6
-rw-r--r--bfd/elfxx-mips.c17
-rw-r--r--binutils/ChangeLog4
-rw-r--r--binutils/readelf.c3
-rw-r--r--gas/ChangeLog15
-rw-r--r--gas/config/tc-mips.c58
-rw-r--r--gas/doc/as.texinfo5
-rw-r--r--gas/doc/c-mips.texi52
-rw-r--r--gas/testsuite/ChangeLog21
-rw-r--r--gas/testsuite/gas/mips/mips.exp14
-rw-r--r--gas/testsuite/gas/mips/nan-2008-1.d6
-rw-r--r--gas/testsuite/gas/mips/nan-2008-2.d7
-rw-r--r--gas/testsuite/gas/mips/nan-2008-3.d6
-rw-r--r--gas/testsuite/gas/mips/nan-2008-4.d7
-rw-r--r--gas/testsuite/gas/mips/nan-2008-override.s2
-rw-r--r--gas/testsuite/gas/mips/nan-2008.s1
-rw-r--r--gas/testsuite/gas/mips/nan-error-1.l2
-rw-r--r--gas/testsuite/gas/mips/nan-error-1.s1
-rw-r--r--gas/testsuite/gas/mips/nan-error-2.l2
-rw-r--r--gas/testsuite/gas/mips/nan-error-2.s1
-rw-r--r--gas/testsuite/gas/mips/nan-legacy-1.d7
-rw-r--r--gas/testsuite/gas/mips/nan-legacy-2.d8
-rw-r--r--gas/testsuite/gas/mips/nan-legacy-3.d7
-rw-r--r--gas/testsuite/gas/mips/nan-legacy-4.d8
-rw-r--r--gas/testsuite/gas/mips/nan-legacy-5.d7
-rw-r--r--gas/testsuite/gas/mips/nan-legacy-override.s2
-rw-r--r--gas/testsuite/gas/mips/nan-legacy.s1
-rw-r--r--include/elf/ChangeLog4
-rw-r--r--include/elf/mips.h3
-rw-r--r--ld/testsuite/ChangeLog9
-rw-r--r--ld/testsuite/ld-mips-elf/mips-elf.exp5
-rw-r--r--ld/testsuite/ld-mips-elf/nan-2008.d7
-rw-r--r--ld/testsuite/ld-mips-elf/nan-2008.s6
-rw-r--r--ld/testsuite/ld-mips-elf/nan-legacy.d8
-rw-r--r--ld/testsuite/ld-mips-elf/nan-legacy.s6
-rw-r--r--ld/testsuite/ld-mips-elf/nan-mixed-1.d5
-rw-r--r--ld/testsuite/ld-mips-elf/nan-mixed-2.d5
37 files changed, 326 insertions, 2 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 7c1f592..0292400 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2013-07-12 Maciej W. Rozycki <macro@codesourcery.com>
+
+ * elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Handle
+ EF_MIPS_NAN2008.
+ (_bfd_mips_elf_print_private_bfd_data): Likewise.
+
2013-07-09 Tristan Gingold <gingold@adacore.com>
* vms-alpha.c (struct vms_private_data_struct): Remove
diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index 63fb508..b7138cf 100644
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -14730,6 +14730,20 @@ _bfd_mips_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
old_flags &= ~ EF_MIPS_ARCH_ASE;
}
+ /* Compare NaN encodings. */
+ if ((new_flags & EF_MIPS_NAN2008) != (old_flags & EF_MIPS_NAN2008))
+ {
+ _bfd_error_handler (_("%B: linking %s module with previous %s modules"),
+ ibfd,
+ (new_flags & EF_MIPS_NAN2008
+ ? "-mnan=2008" : "-mnan=legacy"),
+ (old_flags & EF_MIPS_NAN2008
+ ? "-mnan=2008" : "-mnan=legacy"));
+ ok = FALSE;
+ new_flags &= ~EF_MIPS_NAN2008;
+ old_flags &= ~EF_MIPS_NAN2008;
+ }
+
/* Warn about any other mismatches */
if (new_flags != old_flags)
{
@@ -14921,6 +14935,9 @@ _bfd_mips_elf_print_private_bfd_data (bfd *abfd, void *ptr)
if (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS)
fprintf (file, " [micromips]");
+ if (elf_elfheader (abfd)->e_flags & EF_MIPS_NAN2008)
+ fprintf (file, " [nan2008]");
+
if (elf_elfheader (abfd)->e_flags & EF_MIPS_32BITMODE)
fprintf (file, " [32bitmode]");
else
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index fe84d2c..0290e3f 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,7 @@
+2013-07-12 Maciej W. Rozycki <macro@codesourcery.com>
+
+ * readelf.c (get_machine_flags): Handle EF_MIPS_NAN2008.
+
2013-07-10 Tristan Gingold <gingold@adacore.com>
* od-xcoff.c (OPT_LDINFO): Define.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 6b75fac..f73bb2f 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -2568,6 +2568,9 @@ get_machine_flags (unsigned e_flags, unsigned e_machine)
if (e_flags & EF_MIPS_32BITMODE)
strcat (buf, ", 32bitmode");
+ if (e_flags & EF_MIPS_NAN2008)
+ strcat (buf, ", nan2008");
+
switch ((e_flags & EF_MIPS_MACH))
{
case E_MIPS_MACH_3900: strcat (buf, ", 3900"); break;
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 480181f..10bcdda 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,18 @@
+2013-07-12 Maciej W. Rozycki <macro@codesourcery.com>
+
+ * 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.
+
2013-07-09 Tristan Gingold <gingold@adacore.com>
* configure.com: Define HAVE_SYS_TYPES_H and HAVE_UNISTD_H
diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
index 22ba44a..7fb870e 100644
--- a/gas/config/tc-mips.c
+++ b/gas/config/tc-mips.c
@@ -272,6 +272,9 @@ static int file_mips_soft_float = 0;
/* 1 if -msingle-float, 0 if -mdouble-float. The default is 0. */
static int file_mips_single_float = 0;
+/* True if -mnan=2008, false if -mnan=legacy. */
+static bfd_boolean mips_flag_nan2008 = FALSE;
+
static struct mips_set_options mips_opts =
{
/* isa */ ISA_UNKNOWN, /* ase */ 0, /* mips16 */ -1, /* micromips */ -1,
@@ -1310,6 +1313,7 @@ static void s_gpdword (int);
static void s_ehword (int);
static void s_cpadd (int);
static void s_insn (int);
+static void s_nan (int);
static void md_obj_begin (void);
static void md_obj_end (void);
static void s_mips_ent (int);
@@ -1441,6 +1445,7 @@ enum options
OPTION_PDR,
OPTION_NO_PDR,
OPTION_MVXWORKS_PIC,
+ OPTION_NAN,
OPTION_END_OF_ENUM
};
@@ -1556,6 +1561,7 @@ struct option md_longopts[] =
{"mpdr", no_argument, NULL, OPTION_PDR},
{"mno-pdr", no_argument, NULL, OPTION_NO_PDR},
{"mvxworks-pic", no_argument, NULL, OPTION_MVXWORKS_PIC},
+ {"mnan", required_argument, NULL, OPTION_NAN},
{NULL, no_argument, NULL, 0}
};
@@ -1680,6 +1686,7 @@ static const pseudo_typeS mips_pseudo_table[] =
{"ehword", s_ehword, 0},
{"cpadd", s_cpadd, 0},
{"insn", s_insn, 0},
+ {"nan", s_nan, 0},
/* Relatively generic pseudo-ops that happen to be used on MIPS
chips. */
@@ -15262,6 +15269,18 @@ md_parse_option (int c, char *arg)
mips_pic = VXWORKS_PIC;
break;
+ case OPTION_NAN:
+ if (strcmp (arg, "2008") == 0)
+ mips_flag_nan2008 = TRUE;
+ else if (strcmp (arg, "legacy") == 0)
+ mips_flag_nan2008 = FALSE;
+ else
+ {
+ as_fatal (_("Invalid NaN setting -mnan=%s"), arg);
+ return 0;
+ }
+ break;
+
default:
return 0;
}
@@ -17152,6 +17171,30 @@ s_insn (int ignore ATTRIBUTE_UNUSED)
demand_empty_rest_of_line ();
}
+/* Handle the .nan pseudo-op. */
+
+static void
+s_nan (int ignore ATTRIBUTE_UNUSED)
+{
+ static const char str_legacy[] = "legacy";
+ static const char str_2008[] = "2008";
+ size_t i;
+
+ for (i = 0; !is_end_of_line[(unsigned char) input_line_pointer[i]]; i++);
+
+ if (i == sizeof (str_2008) - 1
+ && memcmp (input_line_pointer, str_2008, i) == 0)
+ mips_flag_nan2008 = TRUE;
+ else if (i == sizeof (str_legacy) - 1
+ && memcmp (input_line_pointer, str_legacy, i) == 0)
+ mips_flag_nan2008 = FALSE;
+ else
+ as_bad (_("Bad .nan directive"));
+
+ input_line_pointer += i;
+ demand_empty_rest_of_line ();
+}
+
/* Handle a .stab[snd] directive. Ideally these directives would be
implemented in a transparent way, so that removing them would not
have any effect on the generated instructions. However, s_stab
@@ -18751,6 +18794,9 @@ mips_elf_final_processing (void)
if (mips_32bitmode)
elf_elfheader (stdoutput)->e_flags |= EF_MIPS_32BITMODE;
+ if (mips_flag_nan2008)
+ elf_elfheader (stdoutput)->e_flags |= EF_MIPS_NAN2008;
+
#if 0 /* XXX FIXME */
/* 32 bit code with 64 bit FP registers. */
if (!file_mips_fp32 && ABI_NEEDS_32BIT_REGS (mips_abi))
@@ -19588,8 +19634,16 @@ MIPS options:\n\
-msingle-float only allow 32-bit floating-point operations\n\
-mdouble-float allow 32-bit and 64-bit floating-point operations\n\
--[no-]construct-floats [dis]allow floating point values to be constructed\n\
---[no-]relax-branch [dis]allow out-of-range branches to be relaxed\n"
- ));
+--[no-]relax-branch [dis]allow out-of-range branches to be relaxed\n\
+-mnan=ENCODING select an IEEE 754 NaN encoding convention, either of:\n"));
+
+ first = 1;
+
+ show (stream, "legacy", &column, &first);
+ show (stream, "2008", &column, &first);
+
+ fputc ('\n', stream);
+
fprintf (stream, _("\
-KPIC, -call_shared generate SVR4 position independent code\n\
-call_nonpic generate non-PIC code that can operate with DSOs\n\
diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo
index d1e397f..a2771d7 100644
--- a/gas/doc/as.texinfo
+++ b/gas/doc/as.texinfo
@@ -402,6 +402,7 @@ gcc(1), ld(1), and the Info entries for @file{binutils} and @file{ld}.
[@b{-mips3}] [@b{-mips4}] [@b{-mips5}] [@b{-mips32}] [@b{-mips32r2}]
[@b{-mips64}] [@b{-mips64r2}]
[@b{-construct-floats}] [@b{-no-construct-floats}]
+ [@b{-mnan=@var{encoding}}]
[@b{-trap}] [@b{-no-break}] [@b{-break}] [@b{-no-trap}]
[@b{-mips16}] [@b{-no-mips16}]
[@b{-mmicromips}] [@b{-mno-micromips}]
@@ -1363,6 +1364,10 @@ The @samp{--relax-branch} option enables the relaxation of out-of-range
branches. By default @samp{--no-relax-branch} is selected, causing any
out-of-range branches to produce an error.
+@item -mnan=@var{encoding}
+Select between the IEEE 754-2008 (@option{-mnan=2008}) or the legacy
+(@option{-mnan=legacy}) NaN encoding format. The latter is the default.
+
@cindex emulation
@item --emulation=@var{name}
This option was formerly used to switch between ELF and ECOFF output
diff --git a/gas/doc/c-mips.texi b/gas/doc/c-mips.texi
index 741237a..8a25a76 100644
--- a/gas/doc/c-mips.texi
+++ b/gas/doc/c-mips.texi
@@ -30,6 +30,7 @@ Assembly Language Programming'' in the same work.
* MIPS assembly options:: Directives to control code generation
* MIPS autoextend:: Directives for extending MIPS 16 bit instructions
* MIPS insn:: Directive to mark data as an instruction
+* MIPS NaN Encodings:: Directives to record which NaN encoding is being used
* MIPS Option Stack:: Directives to save and restore options
* MIPS ASE Instruction Generation Overrides:: Directives to control
generation of MIPS ASE instructions
@@ -416,6 +417,16 @@ Also no MIPS16 branches are ever relaxed.
By default @samp{--no-relax-branch} is selected, causing any out-of-range
branches to produce an error.
+@cindex @option{-mnan=} command line option, MIPS
+@item -mnan=@var{encoding}
+This option indicates whether the source code uses the IEEE 2008
+NaN encoding (@option{-mnan=2008}) or the original MIPS encoding
+(@option{-mnan=legacy}). It is equivalent to adding a @code{.nan}
+directive to the beginning of the source file. @xref{MIPS NaN Encodings}.
+
+@option{-mnan=legacy} is the default if no @option{-mnan} option or
+@code{.nan} directive is used.
+
@item --trap
@itemx --no-break
@c FIXME! (1) reflect these options (next item too) in option summaries;
@@ -722,6 +733,47 @@ baz:
@end example
+@node MIPS NaN Encodings
+@section Directives to record which NaN encoding is being used
+
+@cindex MIPS IEEE 754 NaN data encoding selection
+@cindex @code{.nan} directive, MIPS
+The IEEE 754 floating-point standard defines two types of not-a-number
+(NaN) data: ``signalling'' NaNs and ``quiet'' NaNs. The original version
+of the standard did not specify how these two types should be
+distinguished. Most implementations followed the i387 model, in which
+the first bit of the significand is set for quiet NaNs and clear for
+signalling NaNs. However, the original MIPS implementation assigned the
+opposite meaning to the bit, so that it was set for signalling NaNs and
+clear for quiet NaNs.
+
+The 2008 revision of the standard formally suggested the i387 choice
+and as from Sep 2012 the current release of the MIPS architecture
+therefore optionally supports that form. Code that uses one NaN encoding
+would usually be incompatible with code that uses the other NaN encoding,
+so MIPS ELF objects have a flag (@code{EF_MIPS_NAN2008}) to record which
+encoding is being used.
+
+Assembly files can use the @code{.nan} directive to select between the
+two encodings. @samp{.nan 2008} says that the assembly file uses the
+IEEE 754-2008 encoding while @samp{.nan legacy} says that the file uses
+the original MIPS encoding. If several @code{.nan} directives are given,
+the final setting is the one that is used.
+
+The command-line options @option{-mnan=legacy} and @option{-mnan=2008}
+can be used instead of @samp{.nan legacy} and @samp{.nan 2008}
+respectively. However, any @code{.nan} directive overrides the
+command-line setting.
+
+@samp{.nan legacy} is the default if no @code{.nan} directive or
+@option{-mnan} option is given.
+
+Note that @sc{gnu} @code{@value{AS}} does not produce NaNs itself and
+therefore these directives do not affect code generation. They simply
+control the setting of the @code{EF_MIPS_NAN2008} flag.
+
+Traditional MIPS assemblers do not support these directives.
+
@node MIPS Option Stack
@section Directives to save and restore options
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 8deb0d7..882bcc6 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,24 @@
+2013-07-12 Maciej W. Rozycki <macro@codesourcery.com>
+
+ * 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.
+
2013-07-09 Richard Sandiford <rdsandiford@googlemail.com>
* gas/mips/la-reloc.s, gas/mips/la-reloc.d, gas/mips/dla-reloc.s,
diff --git a/gas/testsuite/gas/mips/mips.exp b/gas/testsuite/gas/mips/mips.exp
index 673b1d7..73127dd 100644
--- a/gas/testsuite/gas/mips/mips.exp
+++ b/gas/testsuite/gas/mips/mips.exp
@@ -915,6 +915,20 @@ if { [istarget mips*-*-vxworks*] } {
run_dump_test_arches "loc-swap-2" [mips_arch_list_all]
run_dump_test_arches "loc-swap-3" [mips_arch_list_all]
+ run_dump_test "nan-legacy-1"
+ run_dump_test "nan-legacy-2"
+ run_dump_test "nan-legacy-3"
+ run_dump_test "nan-legacy-4"
+ run_dump_test "nan-legacy-5"
+
+ run_dump_test "nan-2008-1"
+ run_dump_test "nan-2008-2"
+ run_dump_test "nan-2008-3"
+ run_dump_test "nan-2008-4"
+
+ run_list_test "nan-error-1"
+ run_list_test "nan-error-2" "-mnan=foo"
+
if $has_newabi {
run_dump_test "n32-consec"
}
diff --git a/gas/testsuite/gas/mips/nan-2008-1.d b/gas/testsuite/gas/mips/nan-2008-1.d
new file mode 100644
index 0000000..3649fd2
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-2008-1.d
@@ -0,0 +1,6 @@
+#name: MIPS 2008 NaN setting 1
+#source: nan-2008.s
+#objdump: -p
+
+.*:.*file format.*mips.*
+private flags = [0-9a-f]*[4-7c-f]..: .*[[,]nan2008[],].*
diff --git a/gas/testsuite/gas/mips/nan-2008-2.d b/gas/testsuite/gas/mips/nan-2008-2.d
new file mode 100644
index 0000000..e8a07ce
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-2008-2.d
@@ -0,0 +1,7 @@
+#name: MIPS 2008 NaN setting 2
+#source: nan-2008.s
+#objdump: -p
+#as: -mnan=legacy
+
+.*:.*file format.*mips.*
+private flags = [0-9a-f]*[4-7c-f]..: .*[[,]nan2008[],].*
diff --git a/gas/testsuite/gas/mips/nan-2008-3.d b/gas/testsuite/gas/mips/nan-2008-3.d
new file mode 100644
index 0000000..7c3c4a3
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-2008-3.d
@@ -0,0 +1,6 @@
+#name: MIPS 2008 NaN setting 3
+#source: nan-2008-override.s
+#objdump: -p
+
+.*:.*file format.*mips.*
+private flags = [0-9a-f]*[4-7c-f]..: .*[[,]nan2008[],].*
diff --git a/gas/testsuite/gas/mips/nan-2008-4.d b/gas/testsuite/gas/mips/nan-2008-4.d
new file mode 100644
index 0000000..22ba87f
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-2008-4.d
@@ -0,0 +1,7 @@
+#name: MIPS 2008 NaN setting 4
+#source: empty.s
+#objdump: -p
+#as: -mnan=2008
+
+.*:.*file format.*mips.*
+private flags = [0-9a-f]*[4-7c-f]..: .*[[,]nan2008[],].*
diff --git a/gas/testsuite/gas/mips/nan-2008-override.s b/gas/testsuite/gas/mips/nan-2008-override.s
new file mode 100644
index 0000000..ec6d6b8
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-2008-override.s
@@ -0,0 +1,2 @@
+ .nan legacy
+ .nan 2008
diff --git a/gas/testsuite/gas/mips/nan-2008.s b/gas/testsuite/gas/mips/nan-2008.s
new file mode 100644
index 0000000..9a3875e
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-2008.s
@@ -0,0 +1 @@
+ .nan 2008
diff --git a/gas/testsuite/gas/mips/nan-error-1.l b/gas/testsuite/gas/mips/nan-error-1.l
new file mode 100644
index 0000000..470bf9c
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-error-1.l
@@ -0,0 +1,2 @@
+.*\.s: Assembler messages:
+.*\.s:1: Error: Bad .nan directive
diff --git a/gas/testsuite/gas/mips/nan-error-1.s b/gas/testsuite/gas/mips/nan-error-1.s
new file mode 100644
index 0000000..c6f64c3
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-error-1.s
@@ -0,0 +1 @@
+ .nan foo
diff --git a/gas/testsuite/gas/mips/nan-error-2.l b/gas/testsuite/gas/mips/nan-error-2.l
new file mode 100644
index 0000000..2182615
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-error-2.l
@@ -0,0 +1,2 @@
+Assembler messages:
+Fatal error: Invalid NaN setting -mnan=foo
diff --git a/gas/testsuite/gas/mips/nan-error-2.s b/gas/testsuite/gas/mips/nan-error-2.s
new file mode 100644
index 0000000..dc87e66
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-error-2.s
@@ -0,0 +1 @@
+# No contents necessary.
diff --git a/gas/testsuite/gas/mips/nan-legacy-1.d b/gas/testsuite/gas/mips/nan-legacy-1.d
new file mode 100644
index 0000000..4dcb93c
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy-1.d
@@ -0,0 +1,7 @@
+#name: MIPS legacy NaN setting 1
+#source: nan-legacy.s
+#objdump: -p
+
+.*:.*file format.*mips.*
+#failif
+private flags = [0-9a-f]*[4-7c-f]..: .*[[]nan2008[]].*
diff --git a/gas/testsuite/gas/mips/nan-legacy-2.d b/gas/testsuite/gas/mips/nan-legacy-2.d
new file mode 100644
index 0000000..6ad4dce
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy-2.d
@@ -0,0 +1,8 @@
+#name: MIPS legacy NaN setting 2
+#source: nan-legacy.s
+#objdump: -p
+#as: -mnan=2008
+
+.*:.*file format.*mips.*
+#failif
+private flags = [0-9a-f]*[4-7c-f]..: .*[[]nan2008[]].*
diff --git a/gas/testsuite/gas/mips/nan-legacy-3.d b/gas/testsuite/gas/mips/nan-legacy-3.d
new file mode 100644
index 0000000..649f0ee
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy-3.d
@@ -0,0 +1,7 @@
+#name: MIPS legacy NaN setting 3
+#source: nan-legacy-override.s
+#objdump: -p
+
+.*:.*file format.*mips.*
+#failif
+private flags = [0-9a-f]*[4-7c-f]..: .*[[]nan2008[]].*
diff --git a/gas/testsuite/gas/mips/nan-legacy-4.d b/gas/testsuite/gas/mips/nan-legacy-4.d
new file mode 100644
index 0000000..3dc00cb
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy-4.d
@@ -0,0 +1,8 @@
+#name: MIPS legacy NaN setting 4
+#source: empty.s
+#objdump: -p
+#as: -mnan=legacy
+
+.*:.*file format.*mips.*
+#failif
+private flags = [0-9a-f]*[4-7c-f]..: .*[[]nan2008[]].*
diff --git a/gas/testsuite/gas/mips/nan-legacy-5.d b/gas/testsuite/gas/mips/nan-legacy-5.d
new file mode 100644
index 0000000..db3a954
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy-5.d
@@ -0,0 +1,7 @@
+#name: MIPS legacy NaN setting 5
+#source: empty.s
+#objdump: -p
+
+.*:.*file format.*mips.*
+#failif
+private flags = [0-9a-f]*[4-7c-f]..: .*[[]nan2008[]].*
diff --git a/gas/testsuite/gas/mips/nan-legacy-override.s b/gas/testsuite/gas/mips/nan-legacy-override.s
new file mode 100644
index 0000000..64b2c82
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy-override.s
@@ -0,0 +1,2 @@
+ .nan 2008
+ .nan legacy
diff --git a/gas/testsuite/gas/mips/nan-legacy.s b/gas/testsuite/gas/mips/nan-legacy.s
new file mode 100644
index 0000000..4c299f8
--- /dev/null
+++ b/gas/testsuite/gas/mips/nan-legacy.s
@@ -0,0 +1 @@
+ .nan legacy
diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog
index 2edd1df..6309d1c 100644
--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@@ -1,3 +1,7 @@
+2013-07-12 Maciej W. Rozycki <macro@codesourcery.com>
+
+ * mips.h (EF_MIPS_NAN2008): New macro.
+
2013-07-08 Tristan Gingold <gingold@adacore.com>
* ia64.h (STB_VMS_WEAK, STB_VMS_SYSTEM): Add.
diff --git a/include/elf/mips.h b/include/elf/mips.h
index f3be987..84700b4 100644
--- a/include/elf/mips.h
+++ b/include/elf/mips.h
@@ -191,6 +191,9 @@ END_RELOC_NUMBERS (R_MIPS_maxext)
(regs are 32-bits wide). */
#define EF_MIPS_32BITMODE 0x00000100
+/* Code in file uses the IEEE 754-2008 NaN encoding convention. */
+#define EF_MIPS_NAN2008 0x00000400
+
/* Architectural Extensions used by this file */
#define EF_MIPS_ARCH_ASE 0x0f000000
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index a463570..febe691 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 e0ddac9..24ecf95 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 0000000..aa20049
--- /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 0000000..a87cbab
--- /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 0000000..081abcf
--- /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 0000000..b0c0c67
--- /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 0000000..9bc524c
--- /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 0000000..388d770
--- /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