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thermosphere: C++ gdb/rcmd

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This commit is contained in:
TuxSH 2020-02-07 00:39:16 +00:00
parent 0b8d0035b9
commit fdd5481f63
5 changed files with 83 additions and 70 deletions
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2
thermosphere/src/gdb/hvisor_gdb_context.hpp
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@ -35,6 +35,7 @@
#define DECLARE_HANDLER(name) int Handle##name()
#define DECLARE_QUERY_HANDLER(name) DECLARE_HANDLER(Query##name)
#define DECLARE_VERBOSE_HANDLER(name) DECLARE_HANDLER(Verbose##name)
#define DECLARE_REMOTE_HANDLER(name) DECLARE_HANDLER(Remote##name)
#define DECLARE_XFER_HANDLER(name) DECLARE_HANDLER(Xfer##name)
namespace ams::hvisor::gdb {
@ -211,4 +212,5 @@ namespace ams::hvisor::gdb {
#undef DECLARE_HANDLER
#undef DECLARE_QUERY_HANDLER
#undef DECLARE_VERBOSE_HANDLER
#undef DECLARE_REMOTE_HANDLER
#undef DECLARE_XFER_HANDLER

10
thermosphere/src/gdb/hvisor_gdb_defines_internal.hpp
View file

@ -36,9 +36,11 @@
#define GDB_HANDLER(name) Handle##name
#define GDB_QUERY_HANDLER(name) GDB_HANDLER(Query##name)
#define GDB_VERBOSE_HANDLER(name) GDB_HANDLER(Verbose##name)
#define GDB_REMOTE_COMMAND_HANDLER(name) GDB_HANDLER(RemoteCommand##name)
#define GDB_XFER_HANDLER(name) GDB_HANDLER(Xfer##name)
#define GDB_DEFINE_HANDLER(name) int Context::GDB_HANDLER(name)()
#define GDB_DEFINE_QUERY_HANDLER(name) GDB_DEFINE_HANDLER(Query##name)
#define GDB_DECLARE_VERBOSE_HANDLER(name) GDB_DEFINE_HANDLER(Verbose##name)
#define GDB_DECLARE_XFER_HANDLER(name) GDB_DEFINE_HANDLER(Xfer##name)
#define GDB_DEFINE_HANDLER(name) int Context::GDB_HANDLER(name)()
#define GDB_DEFINE_QUERY_HANDLER(name) GDB_DEFINE_HANDLER(Query##name)
#define GDB_DEFINE_VERBOSE_HANDLER(name) GDB_DEFINE_HANDLER(Verbose##name)
#define GDB_DEFINE_REMOTE_COMMAND_HANDLER(name) GDB_DEFINE_HANDLER(RemoteCommand##name)
#define GDB_DECLARE_XFER_HANDLER(name) GDB_DEFINE_HANDLER(Xfer##name)

75
thermosphere/src/gdb/hvisor_gdb_remote_command.cpp Normal file
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@ -0,0 +1,75 @@
/*
* Copyright (c) 2019-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*/
/*
* This file is part of Luma3DS.
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* SPDX-License-Identifier: (MIT OR GPL-2.0-or-later)
*/
#include "hvisor_gdb_defines_internal.hpp"
#include "hvisor_gdb_packet_data.hpp"
namespace {
constexpr std::string_view SkipSpaces(std::string_view str)
{
size_t n = str.find_first_not_of("\t\v\n\f\r ");
if (n == std::string_view::npos) {
return {};
} else {
str.remove_prefix(n);
return str;
}
}
}
namespace ams::hvisor::gdb {
GDB_DEFINE_QUERY_HANDLER(Rcmd)
{
char *buf = GetInPlaceOutputBuffer();
size_t encodedLen = m_commandData.size();
if (encodedLen == 0 || encodedLen % 2 != 0) {
ReplyErrno(EILSEQ);
}
// Decode in place
if (DecodeHex(buf, m_commandData) != encodedLen / 2) {
ReplyErrno(EILSEQ);
}
// Extract command name, data
m_commandData = std::string_view{buf, encodedLen / 2};
size_t nameSize = m_commandData.find_first_of("\t\v\n\f\r ");
std::string_view commandName = m_commandData;
if (nameSize != std::string_view::npos) {
commandName.remove_suffix(commandName.size() - nameSize);
m_commandData.remove_prefix(nameSize);
m_commandData = SkipSpaces(m_commandData);
} else {
m_commandData = std::string_view{};
}
// Nothing implemented yet
(void)commandName;
return SendHexPacket("Unrecognized command.\n");
}
}

51
thermosphere/src/gdb/remote_command.c
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@ -1,51 +0,0 @@
/*
* This file is part of Luma3DS.
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* SPDX-License-Identifier: (MIT OR GPL-2.0-or-later)
*/
#include <string.h>
#include "remote_command.h"
#include "net.h"
struct
{
const char *name;
GDBCommandHandler handler;
} remoteCommandHandlers[] = {
};
static const char *GDB_SkipSpaces(const char *pos)
{
const char *nextpos;
for (nextpos = pos; *nextpos != 0 && ((*nextpos >= 9 && *nextpos <= 13) || *nextpos == ' '); nextpos++);
return nextpos;
}
GDB_DECLARE_QUERY_HANDLER(Rcmd)
{
char commandData[GDB_BUF_LEN / 2 + 1];
char *endpos;
const char *errstr = "Unrecognized command.\n";
size_t len = strlen(ctx->commandData);
if(len == 0 || (len % 2) == 1 || GDB_DecodeHex(commandData, ctx->commandData, len / 2) != len / 2) {
return GDB_ReplyErrno(ctx, EILSEQ);
}
commandData[len / 2] = 0;
for (endpos = commandData; !(*endpos >= 9 && *endpos <= 13) && *endpos != ' ' && *endpos != 0; endpos++);
char *nextpos = (char *)GDB_SkipSpaces(endpos);
*endpos = 0;
for (size_t i = 0; i < sizeof(remoteCommandHandlers) / sizeof(remoteCommandHandlers[0]); i++) {
if (strcmp(commandData, remoteCommandHandlers[i].name) == 0) {
ctx->commandData = nextpos;
return remoteCommandHandlers[i].handler(ctx);
}
}
return GDB_SendHexPacket(ctx, errstr, strlen(errstr));
}

15
thermosphere/src/gdb/remote_command.h
View file

@ -1,15 +0,0 @@
/*
* This file is part of Luma3DS.
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
*
* SPDX-License-Identifier: (MIT OR GPL-2.0-or-later)
*/
#pragma once
#include "context.h"
#define GDB_REMOTE_COMMAND_HANDLER(name) GDB_HANDLER(RemoteCommand##name)
#define GDB_DECLARE_REMOTE_COMMAND_HANDLER(name) GDB_DECLARE_HANDLER(RemoteCommand##name)
GDB_DECLARE_QUERY_HANDLER(Rcmd);