Kernel+LibC: Move LibC/signal_numbers.h to Kernel/API/POSIX

Make Userland and Tests users just include signal.h, and move Kernel
users to the new API file.

Kernel/API/POSIX/signal.h

@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <Kernel/API/POSIX/signal_numbers.h>
 #include <Kernel/API/POSIX/sys/types.h>
 
 #ifdef __cplusplus

Kernel/API/POSIX/signal_numbers.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#define SIGINVAL 0
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGINFO 30
+#define SIGSYS 31
+#define SIGCANCEL 32
+#define NSIG 33

Kernel/Process.h

@@ -38,7 +38,6 @@
 #include <Kernel/Thread.h>
 #include <Kernel/UnixTypes.h>
 #include <LibC/elf.h>
-#include <LibC/signal_numbers.h>
 
 namespace Kernel {
 

Kernel/TTY/MasterPTY.cpp

@@ -5,13 +5,13 @@
  */
 
 #include <Kernel/API/POSIX/errno.h>
+#include <Kernel/API/POSIX/signal_numbers.h>
 #include <Kernel/Debug.h>
 #include <Kernel/InterruptDisabler.h>
 #include <Kernel/Process.h>
 #include <Kernel/TTY/MasterPTY.h>
 #include <Kernel/TTY/PTYMultiplexer.h>
 #include <Kernel/TTY/SlavePTY.h>
-#include <LibC/signal_numbers.h>
 #include <LibC/sys/ioctl_numbers.h>
 
 namespace Kernel {

Kernel/TTY/TTY.cpp

@@ -8,11 +8,11 @@
 #include <AK/ScopeGuard.h>
 #include <AK/StringView.h>
 #include <Kernel/API/POSIX/errno.h>
+#include <Kernel/API/POSIX/signal_numbers.h>
 #include <Kernel/Debug.h>
 #include <Kernel/InterruptDisabler.h>
 #include <Kernel/Process.h>
 #include <Kernel/TTY/TTY.h>
-#include <LibC/signal_numbers.h>
 #include <LibC/sys/ioctl_numbers.h>
 #define TTYDEFCHARS
 #include <LibC/sys/ttydefaults.h>

Kernel/Thread.cpp

@@ -9,6 +9,7 @@
 #include <AK/StringBuilder.h>
 #include <AK/TemporaryChange.h>
 #include <AK/Time.h>
+#include <Kernel/API/POSIX/signal_numbers.h>
 #include <Kernel/Arch/SmapDisabler.h>
 #include <Kernel/Arch/TrapFrame.h>
 #include <Kernel/Debug.h>
@@ -29,7 +30,6 @@
 #include <Kernel/ThreadTracer.h>
 #include <Kernel/TimerQueue.h>
 #include <Kernel/kstdio.h>
-#include <LibC/signal_numbers.h>
 
 namespace Kernel {
 

Kernel/Thread.h

@@ -16,6 +16,7 @@
 #include <AK/Variant.h>
 #include <AK/Vector.h>
 #include <Kernel/API/POSIX/sched.h>
+#include <Kernel/API/POSIX/signal_numbers.h>
 #include <Kernel/Arch/RegisterState.h>
 #include <Kernel/Arch/ThreadRegisters.h>
 #include <Kernel/Debug.h>
@@ -31,7 +32,6 @@
 #include <Kernel/Memory/VirtualRange.h>
 #include <Kernel/UnixTypes.h>
 #include <LibC/fd_set.h>
-#include <LibC/signal_numbers.h>
 
 namespace Kernel {