RISC-V: Add actual 'Zvkt' extension support

The 'Zvkt' extension is listed on the added extensions in the GNU Binutils
version 2.41 (see binutils/NEWS).  However, the support of this extension
was actually missing.

This commit adds actual support of this extension and adds implications
from 'Zvkn' and 'Zvks' superset extensions.

bfd/ChangeLog:

	* elfxx-riscv.c (riscv_implicit_subsets) Add implications from
	'Zvkn' and 'Zvks'.  (riscv_supported_std_z_ext): Add 'Zvkt' to
	the supported extension list.

diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c
index d6c8e046e3e687876640fb56245f4180bd14dccd..b34898af8c98c3ee559e9c3126aa70180b653d72 100644 (file)
--- a/bfd/elfxx-riscv.c
+++ b/bfd/elfxx-riscv.c
@@ -1160,6 +1160,7 @@ static struct riscv_implicit_subset riscv_implicit_subsets[] =
   {"zvkn", "zvknha",   check_implicit_always},
   {"zvkn", "zvknhb",   check_implicit_always},
   {"zvkn", "zvbb",     check_implicit_always},
+  {"zvkn", "zvkt",     check_implicit_always},
   {"zvkng", "zvkn",    check_implicit_always},
   {"zvkng", "zvkg",    check_implicit_always},
   {"zvknc", "zvkn",    check_implicit_always},
@@ -1167,6 +1168,7 @@ static struct riscv_implicit_subset riscv_implicit_subsets[] =
   {"zvks", "zvksed",   check_implicit_always},
   {"zvks", "zvksh",    check_implicit_always},
   {"zvks", "zvbb",     check_implicit_always},
+  {"zvks", "zvkt",     check_implicit_always},
   {"zvksg", "zvks",    check_implicit_always},
   {"zvksg", "zvkg",    check_implicit_always},
   {"zvksc", "zvks",    check_implicit_always},
@@ -1291,6 +1293,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] =
   {"zvks",             ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },
   {"zvksg",            ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },
   {"zvksc",            ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },
+  {"zvkt",             ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },
   {"zvl32b",           ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },
   {"zvl64b",           ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },
   {"zvl128b",          ISA_SPEC_CLASS_DRAFT,           1, 0,  0 },