um: unify KSTK_...

... and switch get_thread_register() to HOST_... for register numbers
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/x86/um/asm/processor.h

@@ -10,6 +10,10 @@
 # include "processor_64.h"
 #endif
 
+#define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP)
+#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_IP)
+#define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)
+
 #define ARCH_IS_STACKGROW(address) \
        (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(&current->thread.regs.regs))
 

arch/x86/um/asm/processor_32.h

@@ -63,8 +63,4 @@ static inline void rep_nop(void)
 #define current_text_addr() \
 	({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
 
-#define KSTK_EIP(tsk) KSTK_REG(tsk, EIP)
-#define KSTK_ESP(tsk) KSTK_REG(tsk, UESP)
-#define KSTK_EBP(tsk) KSTK_REG(tsk, EBP)
-
 #endif

arch/x86/um/asm/processor_64.h

@@ -42,7 +42,4 @@ static inline void arch_copy_thread(struct arch_thread *from,
 #define current_text_addr() \
 	({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
 
-#define KSTK_EIP(tsk) KSTK_REG(tsk, RIP)
-#define KSTK_ESP(tsk) KSTK_REG(tsk, RSP)
-
 #endif

arch/x86/um/os-Linux/registers.c

@@ -89,18 +89,18 @@ unsigned long get_thread_reg(int reg, jmp_buf *buf)
 {
 	switch (reg) {
 #ifdef __i386__
-	case EIP:
+	case HOST_IP:
 		return buf[0]->__eip;
-	case UESP:
+	case HOST_SP:
 		return buf[0]->__esp;
-	case EBP:
+	case HOST_BP:
 		return buf[0]->__ebp;
 #else
-	case RIP:
+	case HOST_IP:
 		return buf[0]->__rip;
-	case RSP:
+	case HOST_SP:
 		return buf[0]->__rsp;
-	case RBP:
+	case HOST_BP:
 		return buf[0]->__rbp;
 #endif
 	default: