Add build system scaffolding and libc headers

1 files changed, 91 insertions, 0 deletions

diff --git a/include/arch/x86_64/asm-generic/signal.h b/include/arch/x86_64/asm-generic/signal.h
new file mode 100644
index 00000000..02c7845f
--- /dev/null
+++ b/include/arch/x86_64/asm-generic/signal.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __ASM_GENERIC_SIGNAL_H
+#define __ASM_GENERIC_SIGNAL_H
+
+#include <linux/types.h>
+
+#define _NSIG	    64
+#define _NSIG_BPW   __BITS_PER_LONG
+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+#define SIGHUP	  1
+#define SIGINT	  2
+#define SIGQUIT	  3
+#define SIGILL	  4
+#define SIGTRAP	  5
+#define SIGABRT	  6
+#define SIGIOT	  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 SIGPOLL	  SIGIO
+/*
+#define SIGLOST		29
+*/
+#define SIGPWR	  30
+#define SIGSYS	  31
+#define SIGUNUSED 31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN 32
+#ifndef SIGRTMAX
+#define SIGRTMAX _NSIG
+#endif
+
+#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ    8192
+#endif
+
+#ifndef __ASSEMBLY__
+typedef struct {
+	unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+/* not actually used, but required for linux/syscalls.h */
+typedef unsigned long old_sigset_t;
+
+#include <asm-generic/signal-defs.h>
+
+#ifdef SA_RESTORER
+#define __ARCH_HAS_SA_RESTORER
+#endif
+
+struct sigaction {
+	__sighandler_t sa_handler;
+	unsigned long sa_flags;
+#ifdef SA_RESTORER
+	__sigrestore_t sa_restorer;
+#endif
+	sigset_t sa_mask; /* mask last for extensibility */
+};
+
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	__kernel_size_t ss_size;
+} stack_t;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_GENERIC_SIGNAL_H */