[binutils-gdb] RISC-V: Add actual 'Zvkt' extension support

[binutils-gdb] RISC-V: Add actual 'Zvkt' extension support

[Tsukasa OI]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6551c119bf788b6b9e3475e5bacf21d589ba9405

commit 6551c119bf788b6b9e3475e5bacf21d589ba9405
Author: Tsukasa OI <research_trasio@irq.a4lg.com>
Date:   Wed Jul 26 01:39:44 2023 +0000

    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:
---
 bfd/elfxx-riscv.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c
index b43d2cfa0fa..ba5165766b2 100644
--- a/bfd/elfxx-riscv.c
+++ b/bfd/elfxx-riscv.c
@@ -1162,6 +1162,7 @@ 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},
@@ -1169,6 +1170,7 @@ 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},
@@ -1296,6 +1298,7 @@ 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 },