Fix checking bignum values that are being inserted into byte sized containers.

	* read.c (emit_expr_with_reloc): Add code check a bignum with
	nbytes == 1.
	* config/rx/rx-parse.y (rx_intop): Accept bignum values for sizes
	other than 32-bits.
	* testsuite/gas/elf/bignum.s: New test source file.
	* testsuite/gas/elf/bignum.d: New test driver file.
	* testsuite/gas/elf/elf.exp: Run the new test.

3 files changed, 42 insertions, 4 deletions

diff --git a/gas/testsuite/gas/elf/bignums.d b/gas/testsuite/gas/elf/bignums.d
new file mode 100644
index 0000000..799ef3c
--- /dev/null
+++ b/gas/testsuite/gas/elf/bignums.d
@@ -0,0 +1,14 @@
+#readelf: -x .data
+#name: bignum byte values
+#not-target: rx-*
+# The RX target sometimes calls its data section D_1.
+# 
+# Test that 8-bit and 16-bit constants can be specified via bignums.
+# 
+# Note - we should really apply this test to all targets, not just
+# ELF based ones, but we need a tool that can dump the data section
+# in a fixed format and readelf fits the bill.
+
+Hex dump of section .*:
+  0x00000000 9800(7698|9876) 9800(7698|9876) 9800.*
+#pass
diff --git a/gas/testsuite/gas/elf/bignums.s b/gas/testsuite/gas/elf/bignums.s
new file mode 100644
index 0000000..91de585
--- /dev/null
+++ b/gas/testsuite/gas/elf/bignums.s
@@ -0,0 +1,23 @@
+	.data
+
+	# On a 64-bit host the two values below will be read into a simple
+	# 64-bit field in the expressionS structure and the type will be set
+	# to O_constant.  On a 32-bit host however they will read into the
+	# generic_bignum array and the type set to O_bignum.  Either way they
+	# should both evaluate without errors.
+	#
+	# Note - some targets place .hword values on a 16-bit boundary, so we
+	# declare a second, zero, .byte value in order to make the data
+	# consistent across all targets.
+
+	.byte  0xffffffffffffff98, 0
+	.hword 0xffffffffffff9876
+
+	# Check that on 64-bit hosts real bignum values also work.
+
+	.byte  0xffffffffffffffffffffffffffffff98, 0
+	.hword 0xffffffffffffffffffffffffffff9876
+
+	# Also check a ridiculously long bignum value.
+
+	.byte  0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff98, 0
diff --git a/gas/testsuite/gas/elf/elf.exp b/gas/testsuite/gas/elf/elf.exp
index fb5619d..bde875b 100644
--- a/gas/testsuite/gas/elf/elf.exp
+++ b/gas/testsuite/gas/elf/elf.exp
@@ -226,9 +226,10 @@ if { [is_elf_format] } then {
 
     run_dump_test "strtab"
 
-load_lib gas-dg.exp
-dg-init
-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/err-*.s $srcdir/$subdir/warn-*.s]] "" ""
-dg-finish
+    run_dump_test "bignums"
     
+    load_lib gas-dg.exp
+    dg-init
+    dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/err-*.s $srcdir/$subdir/warn-*.s]] "" ""
+    dg-finish
 }