mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
/* Copyright (C) 2018-2021 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "gdbsupport/common-defs.h"
|
|
#include "riscv.h"
|
|
#include <stdlib.h>
|
|
#include <unordered_map>
|
|
|
|
#include "../features/riscv/32bit-cpu.c"
|
|
#include "../features/riscv/64bit-cpu.c"
|
|
#include "../features/riscv/32bit-fpu.c"
|
|
#include "../features/riscv/64bit-fpu.c"
|
|
#include "../features/riscv/rv32e-xregs.c"
|
|
|
|
#ifndef GDBSERVER
|
|
#define STATIC_IN_GDB static
|
|
#else
|
|
#define STATIC_IN_GDB
|
|
#endif
|
|
|
|
/* See arch/riscv.h. */
|
|
|
|
STATIC_IN_GDB target_desc_up
|
|
riscv_create_target_description (const struct riscv_gdbarch_features features)
|
|
{
|
|
/* Now we should create a new target description. */
|
|
target_desc_up tdesc = allocate_target_description ();
|
|
|
|
#ifndef IN_PROCESS_AGENT
|
|
std::string arch_name = "riscv";
|
|
|
|
if (features.xlen == 4)
|
|
{
|
|
if (features.embedded)
|
|
arch_name.append (":rv32e");
|
|
else
|
|
arch_name.append (":rv32i");
|
|
}
|
|
else if (features.xlen == 8)
|
|
arch_name.append (":rv64i");
|
|
else if (features.xlen == 16)
|
|
arch_name.append (":rv128i");
|
|
|
|
if (features.flen == 4)
|
|
arch_name.append ("f");
|
|
else if (features.flen == 8)
|
|
arch_name.append ("d");
|
|
else if (features.flen == 16)
|
|
arch_name.append ("q");
|
|
|
|
set_tdesc_architecture (tdesc.get (), arch_name.c_str ());
|
|
#endif
|
|
|
|
long regnum = 0;
|
|
|
|
/* For now we only support creating 32-bit or 64-bit x-registers. */
|
|
if (features.xlen == 4)
|
|
{
|
|
if (features.embedded)
|
|
regnum = create_feature_riscv_rv32e_xregs (tdesc.get (), regnum);
|
|
else
|
|
regnum = create_feature_riscv_32bit_cpu (tdesc.get (), regnum);
|
|
}
|
|
else if (features.xlen == 8)
|
|
regnum = create_feature_riscv_64bit_cpu (tdesc.get (), regnum);
|
|
|
|
/* For now we only support creating 32-bit or 64-bit f-registers. */
|
|
if (features.flen == 4)
|
|
regnum = create_feature_riscv_32bit_fpu (tdesc.get (), regnum);
|
|
else if (features.flen == 8)
|
|
regnum = create_feature_riscv_64bit_fpu (tdesc.get (), regnum);
|
|
|
|
return tdesc;
|
|
}
|
|
|
|
#ifndef GDBSERVER
|
|
|
|
/* Wrapper used by std::unordered_map to generate hash for feature set. */
|
|
struct riscv_gdbarch_features_hasher
|
|
{
|
|
std::size_t
|
|
operator() (const riscv_gdbarch_features &features) const noexcept
|
|
{
|
|
return features.hash ();
|
|
}
|
|
};
|
|
|
|
/* Cache of previously seen target descriptions, indexed by the feature set
|
|
that created them. */
|
|
static std::unordered_map<riscv_gdbarch_features,
|
|
const target_desc_up,
|
|
riscv_gdbarch_features_hasher> riscv_tdesc_cache;
|
|
|
|
/* See arch/riscv.h. */
|
|
|
|
const target_desc *
|
|
riscv_lookup_target_description (const struct riscv_gdbarch_features features)
|
|
{
|
|
/* Lookup in the cache. If we find it then return the pointer out of
|
|
the target_desc_up (which is a unique_ptr). This is safe as the
|
|
riscv_tdesc_cache will exist until GDB exits. */
|
|
const auto it = riscv_tdesc_cache.find (features);
|
|
if (it != riscv_tdesc_cache.end ())
|
|
return it->second.get ();
|
|
|
|
target_desc_up tdesc (riscv_create_target_description (features));
|
|
|
|
/* Add to the cache, and return a pointer borrowed from the
|
|
target_desc_up. This is safe as the cache (and the pointers
|
|
contained within it) are not deleted until GDB exits. */
|
|
target_desc *ptr = tdesc.get ();
|
|
riscv_tdesc_cache.emplace (features, std::move (tdesc));
|
|
return ptr;
|
|
}
|
|
|
|
#endif /* !GDBSERVER */
|