From: Alan Cox <alan@linux.intel.com>
Date: Fri, 17 Jul 2015 22:25:34 +0000 (+0100)
Subject: cpu: lay groundwork for 32bit kernel / 16bit user etc
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=7b3cbf1fa7f43986f85c89122d9fe15defa9e930;p=FUZIX.git

cpu: lay groundwork for 32bit kernel / 16bit user etc

ugetp/uputp for user pointer sizes
uptr_t holds a userspace pointer
---

diff --git a/Kernel/cpu-6502/cpu.h b/Kernel/cpu-6502/cpu.h
index 23be142b..1b9d8304 100644
--- a/Kernel/cpu-6502/cpu.h
+++ b/Kernel/cpu-6502/cpu.h
@@ -13,6 +13,10 @@ typedef uint16_t uarg_t;		/* Holds arguments */
 typedef uint16_t usize_t;		/* Largest value passed by userspace */
 typedef int16_t susize_t;
 typedef uint16_t uaddr_t;
+typedef uint16_t uptr_t;		/* User pointer equivalent */
+
+#define uputp  uputw			/* Copy user pointer type */
+#define ugetp  ugetw			/* between user and kernel */
 
 extern void ei(void);
 extern irqflags_t di(void);
diff --git a/Kernel/cpu-68000/cpu.h b/Kernel/cpu-68000/cpu.h
index bfd7171f..19a7d95a 100644
--- a/Kernel/cpu-68000/cpu.h
+++ b/Kernel/cpu-68000/cpu.h
@@ -13,6 +13,10 @@ typedef uint32_t uarg_t;		/* Holds arguments */
 typedef uint32_t usize_t;		/* Largest value passed by userspace */
 typedef int32_t susize_t;
 typedef uint32_t uaddr_t;
+typedef uint32_t uptr_t;		/* User pointer equivalent */
+
+#define uputp  uputl			/* Copy user pointer type */
+#define ugetp  ugetl			/* between user and kernel */
 
 extern void ei(void);
 extern irqflags_t di(void);
diff --git a/Kernel/cpu-6809/cpu.h b/Kernel/cpu-6809/cpu.h
index ab2bab08..136eb0be 100644
--- a/Kernel/cpu-6809/cpu.h
+++ b/Kernel/cpu-6809/cpu.h
@@ -13,6 +13,10 @@ typedef uint16_t uarg_t;		/* Holds arguments */
 typedef uint16_t usize_t;		/* Largest value passed by userspace */
 typedef int16_t susize_t;
 typedef uint16_t uaddr_t;		/* A user address must fit this */
+typedef uint16_t uptr_t;		/* User pointer equivalent */
+
+#define uputp  uputw			/* Copy user pointer type */
+#define ugetp  ugetw			/* between user and kernel */
 
 extern void ei(void);
 extern irqflags_t di(void);
diff --git a/Kernel/cpu-8086/cpu.h b/Kernel/cpu-8086/cpu.h
index 19c39b76..d9d1c0bd 100644
--- a/Kernel/cpu-8086/cpu.h
+++ b/Kernel/cpu-8086/cpu.h
@@ -13,6 +13,10 @@ typedef uint16_t uarg_t;		/* Holds arguments */
 typedef uint16_t usize_t;		/* Largest value passed by userspace */
 typedef int16_t susize_t;
 typedef uint16_t uaddr_t;
+typedef uint16_t uptr_t;		/* User pointer equivalent */
+
+#define uputp  uputw			/* Copy user pointer type */
+#define ugetp  ugetw			/* between user and kernel */
 
 #define __fastcall__
 extern void ei(void);
diff --git a/Kernel/cpu-z80/cpu.h b/Kernel/cpu-z80/cpu.h
index f5bf3997..abc440f8 100644
--- a/Kernel/cpu-z80/cpu.h
+++ b/Kernel/cpu-z80/cpu.h
@@ -10,6 +10,10 @@ typedef uint16_t uarg_t;		/* Holds arguments */
 typedef uint16_t usize_t;		/* Largest value passed by userspace */
 typedef int16_t susize_t;
 typedef uint16_t uaddr_t;		/* User address */
+typedef uint16_t uptr_t;		/* Userspace pointer equivalent */
+
+#define uputp  uputw			/* Copy user pointer type */
+#define ugetp  ugetw			/* between user and kernel */
 
 #define ei()   do {__asm ei __endasm; } while(0);