MIPS/BFD: Correctly report unsupported `.reginfo' section size

Report an error when an unsupported `.reginfo' section size is found in
`_bfd_mips_elf_section_processing', removing an assertion that triggers
at elfxx-mips.c:7105 in GAS when assembling input like:

	.section	.reginfo
	.word		0xdeadbeef

and in `objcopy --rename-section' when renaming an incorrectly sized
section to `.reginfo'.

	bfd/
	* elfxx-mips.c (_bfd_mips_elf_section_processing): For
	SHT_MIPS_REGINFO sections don't assert the correct size and
	report an error instead.

	binutils/
	* testsuite/binutils-all/mips/mips-reginfo.d: New test.
	* testsuite/binutils-all/mips/mips-reginfo-n32.d: New test.
	* testsuite/binutils-all/mips/mips-reginfo.s: New test source.
	* testsuite/binutils-all/mips/mips.exp: Run the new tests.

	gas/
	* testsuite/gas/mips/reginfo-2.d: New test.
	* testsuite/gas/mips/reginfo-2-n32.d: New test.
	* testsuite/gas/mips/reginfo-2.l: New test stderr output.
	* testsuite/gas/mips/reginfo-2.s: New test source.
	* testsuite/gas/mips/mips.exp: Run the new tests.

5 files changed, 27 insertions, 0 deletions

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index b52c2d6..f6f3e99 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,5 +1,12 @@
 2018-02-05  Maciej W. Rozycki  <macro@mips.com>
 
+	* testsuite/binutils-all/mips/mips-reginfo.d: New test.
+	* testsuite/binutils-all/mips/mips-reginfo-n32.d: New test.
+	* testsuite/binutils-all/mips/mips-reginfo.s: New test source.
+	* testsuite/binutils-all/mips/mips.exp: Run the new tests.
+
+2018-02-05  Maciej W. Rozycki  <macro@mips.com>
+
 	* testsuite/config/default.exp (binutils_run): Document
 	`binutils_run_status'.
 	* testsuite/lib/utils-lib.exp (default_binutils_run): Likewise,
diff --git a/binutils/testsuite/binutils-all/mips/mips-reginfo-n32.d b/binutils/testsuite/binutils-all/mips/mips-reginfo-n32.d
new file mode 100644
index 0000000..fe55e95
--- /dev/null
+++ b/binutils/testsuite/binutils-all/mips/mips-reginfo-n32.d
@@ -0,0 +1,7 @@
+#PROG: objcopy
+#name: MIPS objcopy .reginfo section size (n32)
+#as: -n32 -mips3
+#objcopy: --rename-section .foo=.reginfo
+#source: mips-reginfo.s
+#error: \A[^\n]*: Incorrect `\.reginfo' section size; expected 24, got 4\n
+#error:   [^\n]*: Bad value\Z
diff --git a/binutils/testsuite/binutils-all/mips/mips-reginfo.d b/binutils/testsuite/binutils-all/mips/mips-reginfo.d
new file mode 100644
index 0000000..7a8c1ca
--- /dev/null
+++ b/binutils/testsuite/binutils-all/mips/mips-reginfo.d
@@ -0,0 +1,6 @@
+#PROG: objcopy
+#name: MIPS objcopy .reginfo section size
+#as: -32
+#objcopy: --rename-section .foo=.reginfo
+#error: \A[^\n]*: Incorrect `\.reginfo' section size; expected 24, got 4\n
+#error:   [^\n]*: Bad value\Z
diff --git a/binutils/testsuite/binutils-all/mips/mips-reginfo.s b/binutils/testsuite/binutils-all/mips/mips-reginfo.s
new file mode 100644
index 0000000..75eaa94
--- /dev/null
+++ b/binutils/testsuite/binutils-all/mips/mips-reginfo.s
@@ -0,0 +1,2 @@
+	.section .foo, "a"
+	.word	0xdeadbeef
diff --git a/binutils/testsuite/binutils-all/mips/mips.exp b/binutils/testsuite/binutils-all/mips/mips.exp
index be6e785..2167d4a 100644
--- a/binutils/testsuite/binutils-all/mips/mips.exp
+++ b/binutils/testsuite/binutils-all/mips/mips.exp
@@ -60,3 +60,8 @@ if $has_newabi {
     run_dump_test "mips-note-2r-n32"
     run_dump_test "mips-note-2r-n64"
 }
+
+run_dump_test "mips-reginfo"
+if $has_newabi {
+    run_dump_test "mips-reginfo-n32"
+}