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Kernel: Remove DebugLogDevice

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This was a cute idea but ultimately it's just not useful since we
already have the dbgputch() and dbgputstr() syscalls.
This commit is contained in:
Andreas Kling 2020-04-08 14:09:22 +02:00
parent c8087a42fc
commit befe4c6709
5 changed files with 0 additions and 109 deletions
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57
Kernel/Devices/DebugLogDevice.cpp
View file

@ -1,57 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <Kernel/Devices/DebugLogDevice.h>
#include <LibBareMetal/IO.h>
namespace Kernel {
static DebugLogDevice* s_the;
DebugLogDevice& DebugLogDevice::the()
{
ASSERT(s_the);
return *s_the;
}
DebugLogDevice::DebugLogDevice()
: CharacterDevice(1, 18)
{
s_the = this;
}
DebugLogDevice::~DebugLogDevice()
{
}
ssize_t DebugLogDevice::write(FileDescription&, const u8* data, ssize_t data_size)
{
for (int i = 0; i < data_size; ++i)
IO::out8(0xe9, data[i]);
return data_size;
}
}

47
Kernel/Devices/DebugLogDevice.h
View file

@ -1,47 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <Kernel/Devices/CharacterDevice.h>
namespace Kernel {
class DebugLogDevice final : public CharacterDevice {
public:
DebugLogDevice();
virtual ~DebugLogDevice() override;
static DebugLogDevice& the();
private:
// ^CharacterDevice
virtual ssize_t read(FileDescription&, u8*, ssize_t) override { return 0; }
virtual ssize_t write(FileDescription&, const u8*, ssize_t) override;
virtual bool can_write(const FileDescription&) const override { return true; }
virtual bool can_read(const FileDescription&) const override { return true; }
virtual const char* class_name() const override { return "DebugLogDevice"; }
};
}

1
Kernel/Makefile
View file

@ -35,7 +35,6 @@ OBJS = \
Devices/BXVGADevice.o \
Devices/BlockDevice.o \
Devices/CharacterDevice.o \
Devices/DebugLogDevice.o \
Devices/Device.o \
Devices/DiskPartition.o \
Devices/FullDevice.o \

2
Kernel/build-root-filesystem.sh
View file

@ -49,13 +49,11 @@ mknod mnt/dev/random c 1 8
mknod mnt/dev/null c 1 3
mknod mnt/dev/zero c 1 5
mknod mnt/dev/full c 1 7
mknod mnt/dev/debuglog c 1 18
# random, is failing (randomly) on fuse-ext2 on macos :)
chmod 666 mnt/dev/random || true
chmod 666 mnt/dev/null
chmod 666 mnt/dev/zero
chmod 666 mnt/dev/full
chmod 666 mnt/dev/debuglog
mknod mnt/dev/keyboard c 85 1
chmod 440 mnt/dev/keyboard
chown 0:$phys_gid mnt/dev/keyboard

2
Kernel/init.cpp
View file

@ -33,7 +33,6 @@
#include <Kernel/CMOS.h>
#include <Kernel/CommandLine.h>
#include <Kernel/Devices/BXVGADevice.h>
#include <Kernel/Devices/DebugLogDevice.h>
#include <Kernel/Devices/DiskPartition.h>
#include <Kernel/Devices/EBRPartitionTable.h>
#include <Kernel/Devices/FullDevice.h>
@ -125,7 +124,6 @@ extern "C" [[noreturn]] void init()
new KeyboardDevice;
new PS2MouseDevice;
setup_vmmouse();
new DebugLogDevice;
new Console;
klog() << "Starting SerenityOS...";