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Luma3DS-3GX/sysmodules/rosalina/source/gdb/stop_point.c

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/*
* This file is part of Luma3DS
* Copyright (C) 2016-2017 Aurora Wright, TuxSH
*
* 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/>.
*
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
* * Requiring preservation of specified reasonable legal notices or
* author attributions in that material or in the Appropriate Legal
* Notices displayed by works containing it.
* * Prohibiting misrepresentation of the origin of that material,
* or requiring that modified versions of such material be marked in
* reasonable ways as different from the original version.
*/
#include "gdb.h"
#include "gdb/net.h"
#include "gdb/watchpoints.h"
#include "gdb/breakpoints.h"
GDB_DECLARE_HANDLER(ToggleStopPoint)
{
bool add = ctx->commandData[-1] == 'Z';
u32 lst[3];
const char *pos = GDB_ParseHexIntegerList(lst, ctx->commandData, 3, ';');
if(pos == NULL)
return GDB_ReplyErrno(ctx, EILSEQ);
bool persist = *pos != 0 && strncmp(pos, ";cmds:1", 7) == 0;
u32 kind = lst[0];
u32 addr = lst[1];
u32 size = lst[2];
int res;
static const WatchpointKind kinds[3] = { WATCHPOINT_WRITE, WATCHPOINT_READ, WATCHPOINT_READWRITE };
switch(kind)
{
case 0: // software breakpoint
if(size != 2 && size != 4)
return GDB_ReplyEmpty(ctx);
else
{
res = add ? GDB_AddBreakpoint(ctx, addr, size == 2, persist) :
GDB_RemoveBreakpoint(ctx, addr);
return res == 0 ? GDB_ReplyOk(ctx) : GDB_ReplyErrno(ctx, -res);
}
// Watchpoints
case 2:
case 3:
case 4:
res = add ? GDB_AddWatchpoint(ctx, addr, size, kinds[kind - 2]) :
GDB_RemoveWatchpoint(ctx, addr, kinds[kind - 2]);
return res == 0 ? GDB_ReplyOk(ctx) : GDB_ReplyErrno(ctx, -res);
default:
return GDB_ReplyEmpty(ctx);
}
}