um: merge arch/um/os-Linux/sys-{i386,x86_64}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

9 files changed, 57 insertions, 85 deletions

diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 7aec5bfea331..7879e76e998f 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -5,7 +5,7 @@
 
 obj-y = aio.o execvp.o file.o helper.o irq.o main.o mem.o process.o \
         registers.o sigio.o signal.o start_up.o time.o tty.o \
-        umid.o tls.o user_syms.o util.o drivers/ sys-$(SUBARCH)/ skas/
+        umid.o tls.o user_syms.o util.o drivers/ sys-$(HEADER_ARCH)/ skas/
 
 obj-$(CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA) += elf_aux.o
 
diff --git a/arch/um/os-Linux/sys-i386/Makefile b/arch/um/os-Linux/sys-x86/Makefile
index d491754bf701..22cc5073c020 100644
--- a/arch/um/os-Linux/sys-i386/Makefile
+++ b/arch/um/os-Linux/sys-x86/Makefile
@@ -3,7 +3,10 @@
 # Licensed under the GPL
 #
 
-obj-y = registers.o task_size.o tls.o
+obj-y = registers.o task_size.o
+
+obj-$(CONFIG_X86_32) += tls.o
+obj-$(CONFIG_64BIT) += prctl.o
 
 USER_OBJS := $(obj-y)
 
diff --git a/arch/um/os-Linux/sys-x86_64/prctl.c b/arch/um/os-Linux/sys-x86/prctl.c
index 9d34eddb517f..9d34eddb517f 100644
--- a/arch/um/os-Linux/sys-x86_64/prctl.c
+++ b/arch/um/os-Linux/sys-x86/prctl.c
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-x86/registers.c
index 913d811b38db..3a9b6247bbbc 100644
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-x86/registers.c
@@ -24,6 +24,8 @@ int restore_fp_registers(int pid, unsigned long *fp_regs)
         return 0;
 }
 
+#ifdef __i386__
+int have_fpx_regs = 1;
 int save_fpx_registers(int pid, unsigned long *fp_regs)
 {
         if (ptrace(PTRACE_GETFPXREGS, pid, 0, fp_regs) < 0)
@@ -38,24 +40,6 @@ int restore_fpx_registers(int pid, unsigned long *fp_regs)
         return 0;
 }
 
-unsigned long get_thread_reg(int reg, jmp_buf *buf)
-{
-        switch (reg) {
-        case EIP:
-                return buf[0]->__eip;
-        case UESP:
-                return buf[0]->__esp;
-        case EBP:
-                return buf[0]->__ebp;
-        default:
-                printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
-                       reg);
-                return 0;
-        }
-}
-
-int have_fpx_regs = 1;
-
 int get_fp_registers(int pid, unsigned long *regs)
 {
         if (have_fpx_regs)
@@ -87,3 +71,41 @@ void arch_init_registers(int pid)
 
         have_fpx_regs = 0;
 }
+#else
+
+int get_fp_registers(int pid, unsigned long *regs)
+{
+        return save_fp_registers(pid, regs);
+}
+
+int put_fp_registers(int pid, unsigned long *regs)
+{
+        return restore_fp_registers(pid, regs);
+}
+
+#endif
+
+unsigned long get_thread_reg(int reg, jmp_buf *buf)
+{
+        switch (reg) {
+#ifdef __i386__
+        case EIP:
+                return buf[0]->__eip;
+        case UESP:
+                return buf[0]->__esp;
+        case EBP:
+                return buf[0]->__ebp;
+#else
+        case RIP:
+                return buf[0]->__rip;
+        case RSP:
+                return buf[0]->__rsp;
+        case RBP:
+                return buf[0]->__rbp;
+#endif
+        default:
+                printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
+                       reg);
+                return 0;
+        }
+}
diff --git a/arch/um/os-Linux/sys-i386/task_size.c b/arch/um/os-Linux/sys-x86/task_size.c
index 4ce09b8e99c9..efb16c5c9bcf 100644
--- a/arch/um/os-Linux/sys-i386/task_size.c
+++ b/arch/um/os-Linux/sys-x86/task_size.c
@@ -4,6 +4,8 @@
 #include <sys/mman.h>
 #include "longjmp.h"
 
+#ifdef __i386__
+
 static jmp_buf buf;
 
 static void segfault(int sig)
@@ -136,3 +138,13 @@ out:
 
         return top;
 }
+
+#else
+
+unsigned long os_get_top_address(void)
+{
+        /* The old value of CONFIG_TOP_ADDR */
+        return 0x7fc0000000;
+}
+
+#endif
diff --git a/arch/um/os-Linux/sys-i386/tls.c b/arch/um/os-Linux/sys-x86/tls.c
index 281e83ecce3d..281e83ecce3d 100644
--- a/arch/um/os-Linux/sys-i386/tls.c
+++ b/arch/um/os-Linux/sys-x86/tls.c
diff --git a/arch/um/os-Linux/sys-x86_64/Makefile b/arch/um/os-Linux/sys-x86_64/Makefile
deleted file mode 100644
index 58f6e0a38598..000000000000
--- a/arch/um/os-Linux/sys-x86_64/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
-# Licensed under the GPL
-#
-
-obj-y = registers.o prctl.o task_size.o
-
-USER_OBJS := $(obj-y)
-
-include arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
deleted file mode 100644
index 0594d550c034..000000000000
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2006 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <errno.h>
-#include <sys/ptrace.h>
-#define __FRAME_OFFSETS
-#include <asm/ptrace.h>
-#include "longjmp.h"
-
-int save_fp_registers(int pid, unsigned long *fp_regs)
-{
-        if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
-                return -errno;
-        return 0;
-}
-
-int restore_fp_registers(int pid, unsigned long *fp_regs)
-{
-        if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
-                return -errno;
-        return 0;
-}
-
-unsigned long get_thread_reg(int reg, jmp_buf *buf)
-{
-        switch (reg) {
-        case RIP:
-                return buf[0]->__rip;
-        case RSP:
-                return buf[0]->__rsp;
-        case RBP:
-                return buf[0]->__rbp;
-        default:
-                printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
-                       reg);
-                return 0;
-        }
-}
-
-int get_fp_registers(int pid, unsigned long *regs)
-{
-        return save_fp_registers(pid, regs);
-}
-
-int put_fp_registers(int pid, unsigned long *regs)
-{
-        return restore_fp_registers(pid, regs);
-}
diff --git a/arch/um/os-Linux/sys-x86_64/task_size.c b/arch/um/os-Linux/sys-x86_64/task_size.c
deleted file mode 100644
index 26a0dd1f349c..000000000000
--- a/arch/um/os-Linux/sys-x86_64/task_size.c
+++ /dev/null
@@ -1,5 +0,0 @@
-unsigned long os_get_top_address(unsigned long shift)
-{
-        /* The old value of CONFIG_TOP_ADDR */
-        return 0x7fc0000000;
-}