From 054c51b4368648406f487f54b7ed6ba75bbb3f8b Mon Sep 17 00:00:00 2001
From: Franck Bui-Huu <vagabon.xyz@gmail.com>
Date: Thu, 15 Feb 2007 14:21:36 +0100
Subject: [PATCH] [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: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/Makefile | 12 +++++-------
include/asm-mips/page.h | 2 +-
include/asm-mips/pgtable-64.h | 2 +-
include/asm-mips/stackframe.h | 12 ++++++------
4 files changed, 13 insertions(+), 15 deletions(-)
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 4337c492ed1..ce7e02e613a 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -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
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index b92dd8c760d..c90fe560a0d 100644
--- a/include/asm-mips/page.h
+++ b/include/asm-mips/page.h
@@ -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); \
diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h
index 49f5a1a2dfc..a8aed9c6a15 100644
--- a/include/asm-mips/pgtable-64.h
+++ b/include/asm-mips/pgtable-64.h
@@ -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
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index ed33366b85b..59334f598b7 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -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
--
2.20.1