Commit 054c51b4 authored by Franck Bui-Huu's avatar Franck Bui-Huu Committed by Ralf Baechle
Browse files

[MIPS] Rename CONFIG_BUILD_ELF64 into KBUILD_64BIT_SYM32 



This patch renames it for 3 reasons:

    - "CONFIG" pattern is used by Kconfig. Now this macro is
      no more defined by Kconfig but by Kbuild itself make this
      clear by translating "CONFIG" into "KBUILD".

    - "ELF32" word is improper because it is irrelevant to ELF
      format and it makes confusion with CONFIG_BOOT_ELF32. So
      translate it with SYM32.

    - Add "64BIT" part to make clear that this macro implies a
      64 bits kernel.

Signed-off-by: default avatarFranck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent adff90a9

arch/mips/Makefile

+5 −7
Original line number Diff line number Diff line
@@ -577,19 +577,17 @@ endif 
# Automatically detect the build format. By default we choose

# the elf format according to the load address.

# We can always force a build with a 64-bits symbol format by

# passing 'BUILD_ELF32=no' option to the make's command line.

# passing 'KBUILD_SYM32=no' option to the make's command line.

#

ifdef CONFIG_64BIT

  ifndef BUILD_ELF32

  ifndef KBUILD_SYM32

    ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)

      BUILD_ELF32 = y

      KBUILD_SYM32 = y

    endif

  endif



  ifeq ($(BUILD_ELF32), y)

    cflags-y += -msym32

  else

    cflags-y += -DCONFIG_BUILD_ELF64

  ifeq ($(KBUILD_SYM32), y)

    cflags-y += -msym32 -DKBUILD_64BIT_SYM32

  endif

endif

include/asm-mips/page.h

+1 −1
Original line number Diff line number Diff line
@@ -142,7 +142,7 @@ typedef struct { unsigned long pgprot; } pgprot_t; 
/*

 * __pa()/__va() should be used only during mem init.

 */

#if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)

#ifdef KBUILD_64BIT_SYM32

#define __pa(x)								\

({									\

    unsigned long __x = (unsigned long)(x);				\

include/asm-mips/pgtable-64.h

+1 −1
Original line number Diff line number Diff line
@@ -104,7 +104,7 @@ 
#define VMALLOC_START		MAP_BASE

#define VMALLOC_END	\

	(VMALLOC_START + PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE)

#if defined(CONFIG_MODULES) && !defined(CONFIG_BUILD_ELF64) && \

#if defined(CONFIG_MODULES) && defined(KBUILD_64BIT_SYM32) && \

	VMALLOC_START != CKSSEG

/* Load modules into 32bit-compatible segment. */

#define MODULE_START	CKSSEG

include/asm-mips/stackframe.h

+6 −6
Original line number Diff line number Diff line
@@ -91,14 +91,14 @@ 
#else

		MFC0	k0, CP0_CONTEXT

#endif

#if defined(CONFIG_BUILD_ELF64) || (defined(CONFIG_64BIT) && __GNUC__ < 4)

#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)

		lui	k1, %hi(kernelsp)

#else

		lui	k1, %highest(kernelsp)

		daddiu	k1, %higher(kernelsp)

		dsll	k1, 16

		daddiu	k1, %hi(kernelsp)

		dsll	k1, 16

#else

		lui	k1, %hi(kernelsp)

#endif

		LONG_SRL	k0, PTEBASE_SHIFT

		LONG_ADDU	k1, k0
@@ -116,14 +116,14 @@ 
		.endm

#else

		.macro	get_saved_sp	/* Uniprocessor variation */

#if defined(CONFIG_BUILD_ELF64) || (defined(CONFIG_64BIT) && __GNUC__ < 4)

#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)

		lui	k1, %hi(kernelsp)

#else

		lui	k1, %highest(kernelsp)

		daddiu	k1, %higher(kernelsp)

		dsll	k1, k1, 16

		daddiu	k1, %hi(kernelsp)

		dsll	k1, k1, 16

#else

		lui	k1, %hi(kernelsp)

#endif

		LONG_L	k1, %lo(kernelsp)(k1)

		.endm

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