x86: use generic register names in struct user_regs_struct
Switch struct user_regs_struct (defined in <asm/user.h>, which is no
longer exported to userspace) to using register names without e- or
r-prefixes for both 32 and 64 bit x86. This is intended as a
preliminary step in unifying this code between architectures.
Also, be a bit more strict in truncating 32-bit "extended" segment
register values to 16 bits.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/user_32.h b/include/asm-x86/user_32.h
index 0e85d2a..ed8b8fc 100644
--- a/include/asm-x86/user_32.h
+++ b/include/asm-x86/user_32.h
@@ -75,13 +75,23 @@
* doesn't use the extra segment registers)
*/
struct user_regs_struct {
- long ebx, ecx, edx, esi, edi, ebp, eax;
- unsigned short ds, __ds, es, __es;
- unsigned short fs, __fs, gs, __gs;
- long orig_eax, eip;
- unsigned short cs, __cs;
- long eflags, esp;
- unsigned short ss, __ss;
+ unsigned long bx;
+ unsigned long cx;
+ unsigned long dx;
+ unsigned long si;
+ unsigned long di;
+ unsigned long bp;
+ unsigned long ax;
+ unsigned long ds;
+ unsigned long es;
+ unsigned long fs;
+ unsigned long gs;
+ unsigned long orig_ax;
+ unsigned long ip;
+ unsigned long cs;
+ unsigned long flags;
+ unsigned long sp;
+ unsigned long ss;
};
/* When the kernel dumps core, it starts by dumping the user struct -