[PATCH] Split i386 and x86_64 ptrace.h

The use of SEGMENT_RPL_MASK in the i386 ptrace.h introduced by
x86-allow-a-kernel-to-not-be-in-ring-0.patch broke the UML build, as UML
includes the underlying architecture's ptrace.h, but has no easy access to the
x86 segment definitions.

Rather than kludging around this, as in the past, this patch splits the
userspace-usable parts, which are the bits that UML needs, of ptrace.h into
ptrace-abi.h, which is included back into ptrace.h.  Thus, there is no net
effect on i386.

As a side-effect, this creates a ptrace header which is close to being usable
in /usr/include.

x86_64 is also treated in this way for consistency.  There was some trailing
whitespace there, which is cleaned up.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 59 insertions, 52 deletions

diff --git a/include/asm-x86_64/Kbuild b/include/asm-x86_64/Kbuild
index 40f2f13fe174..1ee9b07f3fe6 100644
--- a/include/asm-x86_64/Kbuild
+++ b/include/asm-x86_64/Kbuild
@@ -11,6 +11,7 @@ header-y += debugreg.h
 header-y += ldt.h
 header-y += msr.h
 header-y += prctl.h
+header-y += ptrace-abi.h
 header-y += setup.h
 header-y += sigcontext32.h
 header-y += ucontext.h
diff --git a/include/asm-x86_64/ptrace-abi.h b/include/asm-x86_64/ptrace-abi.h
new file mode 100644
index 000000000000..19184b0806b1
--- /dev/null
+++ b/include/asm-x86_64/ptrace-abi.h
@@ -0,0 +1,51 @@
+#ifndef _X86_64_PTRACE_ABI_H
+#define _X86_64_PTRACE_ABI_H
+
+#if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS)
+#define R15 0
+#define R14 8
+#define R13 16
+#define R12 24
+#define RBP 32
+#define RBX 40
+/* arguments: interrupts/non tracing syscalls only save upto here*/
+#define R11 48
+#define R10 56
+#define R9 64
+#define R8 72
+#define RAX 80
+#define RCX 88
+#define RDX 96
+#define RSI 104
+#define RDI 112
+#define ORIG_RAX 120       /* = ERROR */
+/* end of arguments */
+/* cpu exception frame or undefined in case of fast syscall. */
+#define RIP 128
+#define CS 136
+#define EFLAGS 144
+#define RSP 152
+#define SS 160
+#define ARGOFFSET R11
+#endif /* __ASSEMBLY__ */
+
+/* top of stack page */
+#define FRAME_SIZE 168
+
+#define PTRACE_OLDSETOPTIONS         21
+
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS            12
+#define PTRACE_SETREGS            13
+#define PTRACE_GETFPREGS          14
+#define PTRACE_SETFPREGS          15
+#define PTRACE_GETFPXREGS         18
+#define PTRACE_SETFPXREGS         19
+
+/* only useful for access 32bit programs */
+#define PTRACE_GET_THREAD_AREA    25
+#define PTRACE_SET_THREAD_AREA    26
+
+#define PTRACE_ARCH_PRCTL         30    /* arch_prctl for child */
+
+#endif
diff --git a/include/asm-x86_64/ptrace.h b/include/asm-x86_64/ptrace.h
index ca6f15ff61d4..ab827dc381d7 100644
--- a/include/asm-x86_64/ptrace.h
+++ b/include/asm-x86_64/ptrace.h
@@ -1,40 +1,9 @@
 #ifndef _X86_64_PTRACE_H
 #define _X86_64_PTRACE_H
 
-#if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS) 
-#define R15 0
-#define R14 8
-#define R13 16
-#define R12 24
-#define RBP 32
-#define RBX 40
-/* arguments: interrupts/non tracing syscalls only save upto here*/
-#define R11 48
-#define R10 56  
-#define R9 64
-#define R8 72
-#define RAX 80
-#define RCX 88
-#define RDX 96
-#define RSI 104
-#define RDI 112
-#define ORIG_RAX 120       /* = ERROR */ 
-/* end of arguments */  
-/* cpu exception frame or undefined in case of fast syscall. */
-#define RIP 128
-#define CS 136
-#define EFLAGS 144
-#define RSP 152
-#define SS 160
-#define ARGOFFSET R11
-#endif /* __ASSEMBLY__ */
+#include <asm/ptrace-abi.h>
 
-/* top of stack page */ 
-#define FRAME_SIZE 168
-
-#define PTRACE_OLDSETOPTIONS         21
-
-#ifndef __ASSEMBLY__ 
+#ifndef __ASSEMBLY__
 
 struct pt_regs {
         unsigned long r15;
@@ -45,7 +14,7 @@ struct pt_regs {
         unsigned long rbx;
 /* arguments: non interrupts/non tracing syscalls only save upto here*/
         unsigned long r11;
-        unsigned long r10;      
+        unsigned long r10;
         unsigned long r9;
         unsigned long r8;
         unsigned long rax;
@@ -54,32 +23,18 @@ struct pt_regs {
         unsigned long rsi;
         unsigned long rdi;
         unsigned long orig_rax;
-/* end of arguments */  
+/* end of arguments */
 /* cpu exception frame or undefined */
         unsigned long rip;
         unsigned long cs;
-        unsigned long eflags; 
-        unsigned long rsp; 
+        unsigned long eflags;
+        unsigned long rsp;
         unsigned long ss;
-/* top of stack page */ 
+/* top of stack page */
 };
 
 #endif
 
-/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
-#define PTRACE_GETREGS            12
-#define PTRACE_SETREGS            13
-#define PTRACE_GETFPREGS          14
-#define PTRACE_SETFPREGS          15
-#define PTRACE_GETFPXREGS         18
-#define PTRACE_SETFPXREGS         19
-
-/* only useful for access 32bit programs */
-#define PTRACE_GET_THREAD_AREA    25
-#define PTRACE_SET_THREAD_AREA    26
-
-#define PTRACE_ARCH_PRCTL         30    /* arch_prctl for child */
-
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__) 
 #define user_mode(regs) (!!((regs)->cs & 3))
 #define user_mode_vm(regs) user_mode(regs)