173 lines
5.1 KiB
Diff
173 lines
5.1 KiB
Diff
Delivered-To: raj.khem@gmail.com
|
|
Received: by 10.90.86.4 with SMTP id j4cs313301agb;
|
|
Sat, 8 Jan 2011 16:45:17 -0800 (PST)
|
|
Received: by 10.216.186.82 with SMTP id v60mr20017574wem.56.1294533916559;
|
|
Sat, 08 Jan 2011 16:45:16 -0800 (PST)
|
|
Return-Path: <yann.morin.1998@anciens.enib.fr>
|
|
Received: from smtp.smtpout.orange.fr (smtp01.smtpout.orange.fr [80.12.242.123])
|
|
by mx.google.com with ESMTP id o13si33755824wee.56.2011.01.08.16.45.16;
|
|
Sat, 08 Jan 2011 16:45:16 -0800 (PST)
|
|
Received-SPF: neutral (google.com: 80.12.242.123 is neither permitted nor denied by best guess record for domain of yann.morin.1998@anciens.enib.fr) client-ip=80.12.242.123;
|
|
Authentication-Results: mx.google.com; spf=neutral (google.com: 80.12.242.123 is neither permitted nor denied by best guess record for domain of yann.morin.1998@anciens.enib.fr) smtp.mail=yann.morin.1998@anciens.enib.fr
|
|
Received: from roazhon.bzh.lan ([90.32.245.227])
|
|
by mwinf5d24 with ME
|
|
id tClC1f0024v5z3u03ClFDL; Sun, 09 Jan 2011 01:45:16 +0100
|
|
From: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
|
|
To: uclibc@uclibc.org
|
|
Cc: Khem Raj <raj.khem@gmail.com>,
|
|
Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>,
|
|
Carmelo AMOROSO <carmelo.amoroso@st.com>
|
|
Subject: [PATCH 2/7] ARM: introduce blind options to select & force THUMB mode
|
|
Date: Sun, 9 Jan 2011 01:45:05 +0100
|
|
Message-Id: <1294533910-19305-3-git-send-email-yann.morin.1998@anciens.enib.fr>
|
|
X-Mailer: git-send-email 1.7.1
|
|
In-Reply-To: <1294533910-19305-1-git-send-email-yann.morin.1998@anciens.enib.fr>
|
|
References: <1294533910-19305-1-git-send-email-yann.morin.1998@anciens.enib.fr>
|
|
|
|
Add three new blind options to set use of Thumb mode:
|
|
- COMPILE_IN_THUMB_MODE
|
|
- if set, CFLAGS will contain -mthumb
|
|
- if unset, the compiler's default is used
|
|
- HAS_THUMB
|
|
- CPUS with Thumb instruction set can select this
|
|
- use of BX depends on this
|
|
- FORCE_THUMB
|
|
- CPUs that are Thumb-only must select this
|
|
- this selects: HAS_THUMB, COMPILE_IN_THUMB_MODE and USE_BX
|
|
|
|
Also, remove leading space in Rules.mak.
|
|
|
|
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
|
|
Cc: Khem Raj <raj.khem@gmail.com>
|
|
Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
|
|
Cc: Carmelo AMOROSO <carmelo.amoroso@st.com>
|
|
---
|
|
Rules.mak | 7 ++++---
|
|
extra/Configs/Config.arm | 31 ++++++++++++++++++++++++++++---
|
|
2 files changed, 32 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/Rules.mak b/Rules.mak
|
|
index eecdc64..2a16908 100644
|
|
--- a/Rules.mak
|
|
+++ b/Rules.mak
|
|
@@ -348,9 +348,10 @@ ifeq ($(TARGET_ARCH),arm)
|
|
CPU_CFLAGS-$(CONFIG_ARM_SA1100)+=-mtune=strongarm1100 -march=armv4
|
|
CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=$(call check_gcc,-mtune=xscale,-mtune=strongarm110)
|
|
CPU_CFLAGS-$(CONFIG_ARM_XSCALE)+=-march=armv5te -Wa,-mcpu=xscale
|
|
- CPU_CFLAGS-$(CONFIG_ARM_IWMMXT)+=-march=iwmmxt -Wa,-mcpu=iwmmxt -mabi=iwmmxt
|
|
- CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M3)+=-mcpu=cortex-m3 -mthumb
|
|
- CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M1)+=-mcpu=cortex-m1 -mthumb
|
|
+ CPU_CFLAGS-$(CONFIG_ARM_IWMMXT)+=-march=iwmmxt -Wa,-mcpu=iwmmxt -mabi=iwmmxt
|
|
+ CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M3)+=-mcpu=cortex-m3
|
|
+ CPU_CFLAGS-$(CONFIG_ARM_CORTEX_M1)+=-mcpu=cortex-m1
|
|
+ CPU_CFLAGS-$(COMPILE_IN_THUMB_MODE)+=-mthumb
|
|
endif
|
|
|
|
ifeq ($(TARGET_ARCH),mips)
|
|
diff --git a/extra/Configs/Config.arm b/extra/Configs/Config.arm
|
|
index 3b90e67..c9c40d4 100644
|
|
--- a/extra/Configs/Config.arm
|
|
+++ b/extra/Configs/Config.arm
|
|
@@ -64,70 +64,95 @@ config CONFIG_ARM710
|
|
config CONFIG_ARM7TDMI
|
|
bool "Arm 7TDMI"
|
|
select ARCH_HAS_NO_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM720T
|
|
bool "Arm 720T"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM920T
|
|
bool "Arm 920T"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM922T
|
|
bool "Arm 922T"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM926T
|
|
bool "Arm 926T"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM10T
|
|
bool "Arm 10T"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM1136JF_S
|
|
bool "Arm 1136JF-S"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM1176JZ_S
|
|
bool "Arm 1176JZ-S"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM1176JZF_S
|
|
bool "Arm 1176JZF-S"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM_CORTEX_M3
|
|
bool "Arm Cortex-M3"
|
|
select ARCH_HAS_NO_MMU
|
|
- select USE_BX
|
|
+ select FORCE_THUMB
|
|
|
|
config CONFIG_ARM_CORTEX_M1
|
|
bool "Arm Cortex-M1"
|
|
select ARCH_HAS_NO_MMU
|
|
- select USE_BX
|
|
+ select FORCE_THUMB
|
|
|
|
config CONFIG_ARM_SA110
|
|
bool "Intel StrongArm SA-110"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM_SA1100
|
|
bool "Intel StrongArm SA-1100"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM_XSCALE
|
|
bool "Intel Xscale"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
config CONFIG_ARM_IWMMXT
|
|
bool "Intel Xscale With WMMX PXA27x"
|
|
select ARCH_HAS_MMU
|
|
+ select HAS_THUMB
|
|
|
|
endchoice
|
|
|
|
+config HAS_THUMB
|
|
+ bool
|
|
+
|
|
+config FORCE_THUMB
|
|
+ bool
|
|
+ select HAS_THUMB
|
|
+ select COMPILE_IN_THUMB_MODE
|
|
+ select USE_BX
|
|
+
|
|
+config COMPILE_IN_THUMB_MODE
|
|
+ bool
|
|
+
|
|
config USE_BX
|
|
bool "Use BX in function return"
|
|
default y
|
|
- depends on !CONFIG_GENERIC_ARM && !CONFIG_ARM610 && !CONFIG_ARM710
|
|
+ depends on HAS_THUMB
|
|
help
|
|
Use BX instruction for THUMB aware architectures.
|
|
--
|
|
1.7.1
|
|
|