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

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

arch/um/Makefile

@@ -121,8 +121,8 @@ archclean:
 
 # Generated files
 
-$(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s: FORCE
-	$(Q)$(MAKE) $(build)=$(ARCH_DIR)/sys-$(SUBARCH) $@
+$(ARCH_DIR)/sys-$(HEADER_ARCH)/user-offsets.s: FORCE
+	$(Q)$(MAKE) $(build)=$(ARCH_DIR)/sys-$(HEADER_ARCH) $@
 
 define filechk_gen-asm-offsets
         (set -e; \
@@ -137,7 +137,7 @@ define filechk_gen-asm-offsets
          echo ""; )
 endef
 
-include/generated/user_constants.h: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s
+include/generated/user_constants.h: $(ARCH_DIR)/sys-$(HEADER_ARCH)/user-offsets.s
 	$(call filechk,gen-asm-offsets)
 
 export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH

arch/um/Makefile-i386

@@ -1,4 +1,4 @@
-core-y += arch/um/sys-i386/ arch/x86/crypto/
+core-y += arch/um/sys-x86/ arch/x86/crypto/
 
 TOP_ADDR := $(CONFIG_TOP_ADDR)
 

arch/um/Makefile-x86_64

@@ -1,7 +1,7 @@
 # Copyright 2003 - 2004 Pathscale, Inc
 # Released under the GPL
 
-core-y += arch/um/sys-x86_64/ arch/x86/crypto/
+core-y += arch/um/sys-x86/ arch/x86/crypto/
 START := 0x60000000
 
 _extra_flags_ = -fno-builtin -m64

arch/um/sys-x86/Makefile

@@ -0,0 +1,45 @@
+#
+# Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+#
+
+ifeq ($(CONFIG_X86_32),y)
+	BITS := 32
+else
+	BITS := 64
+endif
+
+obj-y = bug.o bugs_$(BITS).o delay_$(BITS).o fault.o ksyms.o ldt.o \
+	ptrace_$(BITS).o ptrace_user.o setjmp_$(BITS).o signal_$(BITS).o \
+	stub_$(BITS).o stub_segv_$(BITS).o syscalls_$(BITS).o \
+	sys_call_table_$(BITS).o sysrq_$(BITS).o tls_$(BITS).o mem_$(BITS).o
+
+ifeq ($(CONFIG_X86_32),y)
+
+obj-y += checksum_32.o
+obj-$(CONFIG_BINFMT_ELF) += elfcore.o
+
+subarch-obj-y = lib/string_32.o lib/atomic64_32.o lib/atomic64_cx8_32.o
+subarch-obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += lib/rwsem.o
+subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem_32.o
+subarch-obj-$(CONFIG_MODULES) += kernel/module.o
+
+else
+
+obj-y += vdso/
+
+subarch-obj-y = lib/csum-partial_64.o lib/memcpy_64.o lib/thunk_64.o \
+		lib/rwsem.o
+
+endif
+
+subarch-obj-$(CONFIG_MODULES) += kernel/module.o
+
+USER_OBJS := bugs_$(BITS).o ptrace_user.o fault.o
+
+extra-y += user-offsets.s
+$(obj)/user-offsets.s: c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS)
+
+UNPROFILE_OBJS := stub_segv.o
+CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
+
+include arch/um/scripts/Makefile.rules

arch/um/sys-x86_64/ksyms.c → arch/um/sys-x86/ksyms.c

@@ -2,10 +2,12 @@
 #include <asm/string.h>
 #include <asm/checksum.h>
 
+#ifndef CONFIG_X86_32
 /*XXX: we need them because they would be exported by x86_64 */
 #if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
 EXPORT_SYMBOL(memcpy);
 #else
 EXPORT_SYMBOL(__memcpy);
 #endif
+#endif
 EXPORT_SYMBOL(csum_partial);

arch/um/sys-i386/ptrace_user.c → arch/um/sys-x86/ptrace_user.c

@@ -4,7 +4,7 @@
  */
 
 #include <errno.h>
-#include <sys/ptrace.h>
+#include "ptrace_user.h"
 
 int ptrace_getregs(long pid, unsigned long *regs_out)
 {

arch/um/sys-x86_64/user-offsets.c → arch/um/sys-x86/user-offsets.c

@@ -9,20 +9,41 @@
 #include <asm/types.h>
 
 #define DEFINE(sym, val) \
-        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
+	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
 
 #define DEFINE_LONGS(sym, val) \
-        asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
+	asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
 
 #define OFFSET(sym, str, mem) \
 	DEFINE(sym, offsetof(struct str, mem));
 
 void foo(void)
 {
-	OFFSET(HOST_SC_CR2, sigcontext, cr2);
-	OFFSET(HOST_SC_ERR, sigcontext, err);
 	OFFSET(HOST_SC_TRAPNO, sigcontext, trapno);
+	OFFSET(HOST_SC_ERR, sigcontext, err);
+	OFFSET(HOST_SC_CR2, sigcontext, cr2);
 
+#ifdef __i386__
+	DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
+	DEFINE_LONGS(HOST_FPX_SIZE, sizeof(struct user_fpxregs_struct));
+
+	DEFINE(HOST_IP, EIP);
+	DEFINE(HOST_SP, UESP);
+	DEFINE(HOST_EFLAGS, EFL);
+	DEFINE(HOST_EAX, EAX);
+	DEFINE(HOST_EBX, EBX);
+	DEFINE(HOST_ECX, ECX);
+	DEFINE(HOST_EDX, EDX);
+	DEFINE(HOST_ESI, ESI);
+	DEFINE(HOST_EDI, EDI);
+	DEFINE(HOST_EBP, EBP);
+	DEFINE(HOST_CS, CS);
+	DEFINE(HOST_SS, SS);
+	DEFINE(HOST_DS, DS);
+	DEFINE(HOST_FS, FS);
+	DEFINE(HOST_ES, ES);
+	DEFINE(HOST_GS, GS);
+#else
 	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
 	DEFINE_LONGS(HOST_RBX, RBX);
 	DEFINE_LONGS(HOST_RCX, RCX);
@@ -52,9 +73,9 @@ void foo(void)
 
 	DEFINE_LONGS(HOST_IP, RIP);
 	DEFINE_LONGS(HOST_SP, RSP);
-	DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
+#endif
 
-	/* XXX Duplicated between i386 and x86_64 */
+	DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
 	DEFINE(UM_POLLIN, POLLIN);
 	DEFINE(UM_POLLPRI, POLLPRI);
 	DEFINE(UM_POLLOUT, POLLOUT);

arch/um/sys-x86_64/vdso/vdso.S → arch/um/sys-x86/vdso/vdso.S

@@ -4,7 +4,7 @@ __INITDATA
 
 	.globl vdso_start, vdso_end
 vdso_start:
-	.incbin "arch/um/sys-x86_64/vdso/vdso.so"
+	.incbin "arch/um/sys-x86/vdso/vdso.so"
 vdso_end:
 
 __FINIT