target/linux/uml/patches-4.1/001-um-Stop-abusing-__KERNEL__.patch

   1 From: Richard Weinberger <richard@nod.at>
   2 Date: Sun, 31 May 2015 19:50:57 +0200
   3 Subject: [PATCH] um: Stop abusing __KERNEL__
   4
   5 Currently UML is abusing __KERNEL__ to distinguish between
   6 kernel and host code (os-Linux). It is better to use a custom
   7 define such that existing users of __KERNEL__ don't get confused.
   8
   9 Signed-off-by: Richard Weinberger <richard@nod.at>
  10 ---
  11
  12 --- a/arch/um/drivers/mconsole.h
  13 +++ b/arch/um/drivers/mconsole.h
  14 @@ -7,7 +7,7 @@
  15  #ifndef __MCONSOLE_H__
  16  #define __MCONSOLE_H__
  17
  18 -#ifndef __KERNEL__
  19 +#ifdef __UM_HOST__
  20  #include <stdint.h>
  21  #define u32 uint32_t
  22  #endif
  23 --- a/arch/um/include/shared/init.h
  24 +++ b/arch/um/include/shared/init.h
  25 @@ -40,7 +40,7 @@
  26  typedef int (*initcall_t)(void);
  27  typedef void (*exitcall_t)(void);
  28
  29 -#ifndef __KERNEL__
  30 +#ifdef __UM_HOST__
  31  #ifndef __section
  32  # define __section(S) __attribute__ ((__section__(#S)))
  33  #endif
  34 @@ -131,7 +131,7 @@ extern struct uml_param __uml_setup_star
  35  #define __uml_postsetup_call   __used __section(.uml.postsetup.init)
  36  #define __uml_exit_call                __used __section(.uml.exitcall.exit)
  37
  38 -#ifndef __KERNEL__
  39 +#ifdef __UM_HOST__
  40
  41  #define __define_initcall(level,fn) \
  42         static initcall_t __initcall_##fn __used \
  43 --- a/arch/um/include/shared/user.h
  44 +++ b/arch/um/include/shared/user.h
  45 @@ -17,7 +17,7 @@
  46  #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  47
  48  /* This is to get size_t */
  49 -#ifdef __KERNEL__
  50 +#ifndef __UM_HOST__
  51  #include <linux/types.h>
  52  #else
  53  #include <stddef.h>
  54 --- a/arch/um/Makefile
  55 +++ b/arch/um/Makefile
  56 @@ -68,9 +68,10 @@ KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -
  57
  58  KBUILD_AFLAGS += $(ARCH_INCLUDE)
  59
  60 -USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
  61 -       $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
  62 -       $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
  63 +USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \
  64 +               $(ARCH_INCLUDE) $(MODE_INCLUDE) $(filter -I%,$(CFLAGS)) \
  65 +               -D_FILE_OFFSET_BITS=64 -idirafter include \
  66 +               -D__KERNEL__ -D__UM_HOST__
  67
  68  #This will adjust *FLAGS accordingly to the platform.
  69  include $(ARCH_DIR)/Makefile-os-$(OS)
  70 --- a/arch/x86/um/shared/sysdep/tls.h
  71 +++ b/arch/x86/um/shared/sysdep/tls.h
  72 @@ -1,7 +1,7 @@
  73  #ifndef _SYSDEP_TLS_H
  74  #define _SYSDEP_TLS_H
  75
  76 -# ifndef __KERNEL__
  77 +#ifdef __UM_HOST__
  78
  79  /* Change name to avoid conflicts with the original one from <asm/ldt.h>, which
  80   * may be named user_desc (but in 2.4 and in header matching its API was named
  81 @@ -22,11 +22,11 @@ typedef struct um_dup_user_desc {
  82  #endif
  83  } user_desc_t;
  84
  85 -# else /* __KERNEL__ */
  86 +#else /* __UM_HOST__ */
  87
  88  typedef struct user_desc user_desc_t;
  89
  90 -# endif /* __KERNEL__ */
  91 +#endif /* __UM_HOST__ */
  92
  93  extern int os_set_thread_area(user_desc_t *info, int pid);
  94  extern int os_get_thread_area(user_desc_t *info, int pid);