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authorMasahiro Yamada <yamada.m@jp.panasonic.com>2015-02-27 02:40:33 +0900
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2015-03-27 16:55:22 +0100
commit79d75d752717fb4106ec49abaddbd7744c775a35 (patch)
tree18eeb63a38b380252f8952c22a739d9eda4c0eeb /arch
parentd8bafe1310487ba0e0785997726b4792072178d3 (diff)
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ARM: move -march=* and -mtune= options to arch/arm/Makefile
My main motivations for this commit are: [1] Follow the arch/arm/Makefile style of Linux Kernel [2] Maintain compiler options systematically Currently, we give -march=* and -mtune=* options inconsistently: Only some of the CPUs pass -march=* and -mtune=* options. By collecting such options into the single place arch/arm/Makefile we can tell which options are missing at a glance. [3] Prepare for deprecating arch/*/cpu/*/config.mk Note: This commit just moves the compiler options so as not to change the behavior at all. It does not care about the correctness of the given options. Fox example, "-march=armv5te" might be better than "-march=armv4" for ARM946EJS, but it is beyond the scope this commit. Also, filling the missing -march=* and -tune=* is left to follow-up patches. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/Makefile32
-rw-r--r--arch/arm/cpu/arm1136/config.mk9
-rw-r--r--arch/arm/cpu/arm1176/config.mk9
-rw-r--r--arch/arm/cpu/arm720t/config.mk9
-rw-r--r--arch/arm/cpu/arm920t/config.mk8
-rw-r--r--arch/arm/cpu/arm926ejs/config.mk8
-rw-r--r--arch/arm/cpu/arm946es/config.mk8
-rw-r--r--arch/arm/cpu/armv7/config.mk5
-rw-r--r--arch/arm/cpu/armv8/config.mk2
-rw-r--r--arch/arm/cpu/pxa/config.mk2
-rw-r--r--arch/arm/cpu/sa1100/config.mk9
11 files changed, 32 insertions, 69 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 08946de..54be925 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -2,6 +2,38 @@
# SPDX-License-Identifier: GPL-2.0+
#
+# This selects which instruction set is used.
+arch-$(CONFIG_CPU_ARM720T) =-march=armv4
+arch-$(CONFIG_CPU_ARM920T) =-march=armv4
+arch-$(CONFIG_CPU_ARM926EJS) =-march=armv5te
+arch-$(CONFIG_CPU_ARM946ES) =-march=armv4
+arch-$(CONFIG_CPU_SA1100) =-march=armv4
+arch-$(CONFIG_CPU_PXA) =
+arch-$(CONFIG_CPU_ARM1136) =-march=armv5
+arch-$(CONFIG_CPU_ARM1176) =-march=armv5t
+arch-$(CONFIG_CPU_V7) =$(call cc-option, -march=armv7-a, -march=armv5)
+arch-$(CONFIG_ARM64) =-march=armv8-a
+
+# Evaluate arch cc-option calls now
+arch-y := $(arch-y)
+
+# This selects how we optimise for the processor.
+tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi
+tune-$(CONFIG_CPU_ARM920T) =
+tune-$(CONFIG_CPU_ARM926EJS) =
+tune-$(CONFIG_CPU_ARM946ES) =
+tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100
+tune-$(CONFIG_CPU_PXA) =-mcpu=xscale
+tune-$(CONFIG_CPU_ARM1136) =
+tune-$(CONFIG_CPU_ARM1176) =
+tune-$(CONFIG_CPU_V7) =
+tune-$(CONFIG_ARM64) =
+
+# Evaluate tune cc-option calls now
+tune-y := $(tune-y)
+
+PLATFORM_CPPFLAGS += $(arch-y) $(tune-y)
+
# Machine directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
machine-$(CONFIG_ARCH_AT91) += at91
diff --git a/arch/arm/cpu/arm1136/config.mk b/arch/arm/cpu/arm1136/config.mk
deleted file mode 100644
index a82c6ce..0000000
--- a/arch/arm/cpu/arm1136/config.mk
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-# Make ARMv5 to allow more compilers to work, even though its v6.
-PLATFORM_CPPFLAGS += -march=armv5
diff --git a/arch/arm/cpu/arm1176/config.mk b/arch/arm/cpu/arm1176/config.mk
deleted file mode 100644
index 5dc2ebb..0000000
--- a/arch/arm/cpu/arm1176/config.mk
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-# Make ARMv5 to allow more compilers to work, even though its v6.
-PLATFORM_CPPFLAGS += -march=armv5t
diff --git a/arch/arm/cpu/arm720t/config.mk b/arch/arm/cpu/arm720t/config.mk
deleted file mode 100644
index 772fb41..0000000
--- a/arch/arm/cpu/arm720t/config.mk
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2002
-# Sysgo Real-Time Solutions, GmbH <www.elinos.com>
-# Marius Groeger <mgroeger@sysgo.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi
diff --git a/arch/arm/cpu/arm920t/config.mk b/arch/arm/cpu/arm920t/config.mk
deleted file mode 100644
index 799afff..0000000
--- a/arch/arm/cpu/arm920t/config.mk
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-PLATFORM_CPPFLAGS += -march=armv4
diff --git a/arch/arm/cpu/arm926ejs/config.mk b/arch/arm/cpu/arm926ejs/config.mk
deleted file mode 100644
index bdb3da1..0000000
--- a/arch/arm/cpu/arm926ejs/config.mk
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-PLATFORM_CPPFLAGS += -march=armv5te
diff --git a/arch/arm/cpu/arm946es/config.mk b/arch/arm/cpu/arm946es/config.mk
deleted file mode 100644
index 438668d..0000000
--- a/arch/arm/cpu/arm946es/config.mk
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-PLATFORM_CPPFLAGS += -march=armv4
diff --git a/arch/arm/cpu/armv7/config.mk b/arch/arm/cpu/armv7/config.mk
index 6c82c3b..63591d4 100644
--- a/arch/arm/cpu/armv7/config.mk
+++ b/arch/arm/cpu/armv7/config.mk
@@ -5,11 +5,6 @@
# SPDX-License-Identifier: GPL-2.0+
#
-# If armv7-a is not supported by GCC fall-back to armv5, which is
-# supported by more tool-chains
-PF_CPPFLAGS_ARMV7 := $(call cc-option, -march=armv7-a, -march=armv5)
-PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARMV7)
-
# On supported platforms we set the bit which causes us to trap on unaligned
# memory access. This is the opposite of what the compiler expects to be
# the default so we must pass in -mno-unaligned-access so that it is aware
diff --git a/arch/arm/cpu/armv8/config.mk b/arch/arm/cpu/armv8/config.mk
index f5b9559..6850258 100644
--- a/arch/arm/cpu/armv8/config.mk
+++ b/arch/arm/cpu/armv8/config.mk
@@ -6,7 +6,5 @@
#
PLATFORM_RELFLAGS += -fno-common -ffixed-x18
-PF_CPPFLAGS_ARMV8 := $(call cc-option, -march=armv8-a)
PF_NO_UNALIGNED := $(call cc-option, -mstrict-align)
-PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARMV8)
PLATFORM_CPPFLAGS += $(PF_NO_UNALIGNED)
diff --git a/arch/arm/cpu/pxa/config.mk b/arch/arm/cpu/pxa/config.mk
index 525f5d3..7fb5316 100644
--- a/arch/arm/cpu/pxa/config.mk
+++ b/arch/arm/cpu/pxa/config.mk
@@ -6,8 +6,6 @@
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_CPPFLAGS += -mcpu=xscale
-
#
# !WARNING!
# The PXA's OneNAND SPL uses .text.0 and .text.1 segments to allow booting from
diff --git a/arch/arm/cpu/sa1100/config.mk b/arch/arm/cpu/sa1100/config.mk
deleted file mode 100644
index 3afa685..0000000
--- a/arch/arm/cpu/sa1100/config.mk
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2002
-# Sysgo Real-Time Solutions, GmbH <www.elinos.com>
-# Marius Groeger <mgroeger@sysgo.de>
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-PLATFORM_CPPFLAGS += -march=armv4 -mtune=strongarm1100
generated by cgit v1.1 at 2024-12-23 02:08:05 +0000