First round of VAX patches. This isn't complete right now, there are for

sure still bugs (properly hidden, of course), a libm is completely missing
(I've got one that implements some basic stuff, but that's really not
ready for checking in...)

I've also got a list of other things that need touch-ups, but that's mostly
minor stuff that'll be done during the next days.

1 files changed, 264 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/vax/bits/syscalls.h b/libc/sysdeps/linux/vax/bits/syscalls.h
new file mode 100644
index 000000000..caa62118d
--- /dev/null
+++ b/libc/sysdeps/linux/vax/bits/syscalls.h
@@ -0,0 +1,264 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
+ * header files.  It also defines the traditional `SYS_<name>' macros for older
+ * programs.  */
+#include <bits/sysnum.h>
+
+#ifndef __set_errno
+# define __set_errno(val) (*__errno_location())=(val)
+#endif
+
+#ifndef SYS_ify
+# define SYS_ify(syscall_name) (__NR_##syscall_name)
+#endif
+
+#undef _syscall_return
+#define _syscall_return(type)							\
+	do {									\
+		if ((unsigned long) (_sc_ret) >= (unsigned long) (-125)) {	\
+			__set_errno(-_sc_ret);					\
+			_sc_ret = -1;						\
+		}								\
+										\
+		return (type) (_sc_ret);					\
+	} while (0)
+
+#define _syscall_clobbers		\
+	"r1",  "r2",  "r3",  "r4",	\
+	"r5",  "r6",  "r7",  "r8",	\
+	"r9", "r10", "r11"
+
+#ifdef _syscall0
+#	undef _syscall0
+#endif
+#define _syscall0(type, name)						\
+type name (void)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	$0x0		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$4, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#ifdef _syscall1
+#	undef _syscall1
+#endif
+#define _syscall1(type, name, type1, arg1)				\
+type name (type1 arg1)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	%2		\n"				\
+	"	pushl	$0x1		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$8, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0),							\
+	  "m" (arg1)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#ifdef _syscall2
+#	undef _syscall2
+#endif
+#define _syscall2(type, name, type1, arg1, type2, arg2)			\
+type name (type1 arg1,							\
+	   type2 arg2)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	%3		\n"				\
+	"	pushl	%2		\n"				\
+	"	pushl	$0x2		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$12, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0),							\
+	  "m" (arg1),							\
+	  "m" (arg2)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#ifdef _syscall3
+#	undef _syscall3
+#endif
+#define _syscall3(type, name, type1, arg1, type2, arg2, type3, arg3)	\
+type name (type1 arg1,							\
+	   type2 arg2,							\
+	   type3 arg3)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	%4		\n"				\
+	"	pushl	%3		\n"				\
+	"	pushl	%2		\n"				\
+	"	pushl	$0x3		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$16, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0),							\
+	  "m" (arg1),							\
+	  "m" (arg2),							\
+	  "m" (arg3)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#ifdef _syscall4
+#	undef _syscall4
+#endif
+#define _syscall4(type, name, type1, arg1, type2, arg2, type3, arg3,	\
+		type4, arg4)						\
+type name (type1 arg1,							\
+	   type2 arg2,							\
+	   type3 arg3,							\
+	   type4 arg4)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	%5		\n"				\
+	"	pushl	%4		\n"				\
+	"	pushl	%3		\n"				\
+	"	pushl	%2		\n"				\
+	"	pushl	$0x4		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$20, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0),							\
+	  "m" (arg1),							\
+	  "m" (arg2),							\
+	  "m" (arg3),							\
+	  "m" (arg4)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#ifdef _syscall5
+#	undef _syscall5
+#endif
+#define _syscall5(type, name, type1, arg1, type2, arg2, type3, arg3,	\
+		type4, arg4, type5, arg5)				\
+type name (type1 arg1,							\
+	   type2 arg2,							\
+	   type3 arg3,							\
+	   type4 arg4,							\
+	   type5 arg5)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	%6		\n"				\
+	"	pushl	%5		\n"				\
+	"	pushl	%4		\n"				\
+	"	pushl	%3		\n"				\
+	"	pushl	%2		\n"				\
+	"	pushl	$0x5		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$24, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0),							\
+	  "m" (arg1),							\
+	  "m" (arg2),							\
+	  "m" (arg3),							\
+	  "m" (arg4),							\
+	  "m" (arg5)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#ifdef _syscall6
+#	undef _syscall6
+#endif
+#define _syscall6(type, name, type1, arg1, type2, arg2, type3, arg3,	\
+		type4, arg4, type5, arg5, type6, arg6)			\
+type name (type1 arg1,							\
+	   type2 arg2,							\
+	   type3 arg3,							\
+	   type4 arg4,							\
+	   type5 arg5,							\
+	   type6 arg6)							\
+{									\
+	register long _sc_0 __asm__("r0") = SYS_ify (name);		\
+	long _sc_ret;							\
+									\
+	__asm__ __volatile__ (						\
+	"	pushl	%%ap		\n"				\
+	"	pushl	%7		\n"				\
+	"	pushl	%6		\n"				\
+	"	pushl	%5		\n"				\
+	"	pushl	%4		\n"				\
+	"	pushl	%3		\n"				\
+	"	pushl	%2		\n"				\
+	"	pushl	$0x6		\n"				\
+	"	movl	%%sp, %%ap	\n"				\
+	"	chmk	%%r0		\n"				\
+	"	addl2	$28, %%sp	\n"				\
+	"	movl	(%%sp)+, %%ap	\n"				\
+	: "=r" (_sc_0)							\
+	: "0" (_sc_0),							\
+	  "m" (arg1),							\
+	  "m" (arg2),							\
+	  "m" (arg3),							\
+	  "m" (arg4),							\
+	  "m" (arg5),							\
+	  "m" (arg6)							\
+	: _syscall_clobbers);						\
+									\
+	_sc_ret = _sc_0;						\
+	_syscall_return (type);						\
+}
+
+#endif /* _BITS_SYSCALLS_H */