[Buildroot] [PATCH v6 1/7] arch: toolchain: Introduce binary formats BINFMT_*.
Sonic Zhang
sonic.adi at gmail.com
Thu Apr 18 10:06:26 UTC 2013
From: Sonic Zhang <sonic.zhang at analog.com>
Just introduce the symbol and options in arch generic Config.in.
Append FLAT format link flags to external toolchain wrapper.
Signed-off-by: Sonic Zhang <sonic.zhang at analog.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
v6-changes:
- Make BINFMT macros depend on BR2_bfin and BR2_m68k
- Move old blackfin BINFMT macros to Config.in.legacy
v3-changes:
- Rename the BINFMT dependency names in external toolchain config file.
- Add some help text to BINFMT macros.
---
Config.in.legacy | 14 ++++++++
arch/Config.in | 34 ++++++++++++++++++++
arch/Config.in.bfin | 11 ------
toolchain/toolchain-external/Config.in | 12 +++---
toolchain/toolchain-external/ext-tool.mk | 4 ++
.../toolchain-external/ext-toolchain-wrapper.c | 3 ++
6 files changed, 61 insertions(+), 17 deletions(-)
diff --git a/Config.in.legacy b/Config.in.legacy
index d90132c..6867ff3 100644
--- a/Config.in.legacy
+++ b/Config.in.legacy
@@ -104,4 +104,18 @@ config BR2_PACKAGE_INPUT_TOOLS_EVTEST
help
The evtest program from input-tools is now a separate package.
+choice
+ prompt "Target ABI"
+ depends on BR2_bfin
+ default BR2_BFIN_FDPIC
+
+config BR2_BFIN_FDPIC
+ bool "FDPIC"
+
+config BR2_BFIN_FLAT
+ bool "FLAT"
+ select BR2_PREFER_STATIC_LIB
+
+endchoice
+
endmenu
diff --git a/arch/Config.in b/arch/Config.in
index 472b10c..27a29c6 100644
--- a/arch/Config.in
+++ b/arch/Config.in
@@ -174,6 +174,40 @@ config BR2_GCC_TARGET_ABI
config BR2_GCC_TARGET_CPU
string
+# Set up target binary format
+choice
+ prompt "Target Binary Format"
+ depends on BR2_bfin || BR2_m68k
+ default BR2_BINFMT_FDPIC
+
+config BR2_BINFMT_ELF
+ bool "ELF"
+ depends on !BR2_bfin && !BR2_m68k
+ help
+ ELF (Executable and Linkable Format) is a format for libraries and
+ executables used across different architectures and operating
+ systems.
+
+config BR2_BINFMT_FDPIC
+ bool "FDPIC"
+ depends on BR2_bfin || BR2_m68k
+ help
+ ELF FDPIC binaries are based on ELF, but allow the individual load
+ segments of a binary to be located in memory independently of each
+ other. This makes this format ideal for use in environments where no
+ MMU is available.
+
+config BR2_BINFMT_FLAT
+ bool "FLAT"
+ depends on BR2_bfin || BR2_m68k
+ select BR2_PREFER_STATIC_LIB
+ help
+ FLAT binary is a relatively simple and lightweight executable format
+ based on the original a.out format. It is widely used in environment
+ where no MMU is available.
+
+endchoice
+
if BR2_arm || BR2_armeb
source "arch/Config.in.arm"
endif
diff --git a/arch/Config.in.bfin b/arch/Config.in.bfin
index 0b137ae..2a7ff54 100644
--- a/arch/Config.in.bfin
+++ b/arch/Config.in.bfin
@@ -1,14 +1,3 @@
-choice
- prompt "Target ABI"
- depends on BR2_bfin
- default BR2_BFIN_FDPIC
-config BR2_BFIN_FDPIC
- bool "FDPIC"
-config BR2_BFIN_FLAT
- bool "FLAT"
- select BR2_PREFER_STATIC_LIB
-endchoice
-
config BR2_ARCH
default "bfin"
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 5b26aa9..6cf29aa 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -758,12 +758,12 @@ config BR2_TOOLCHAIN_EXTERNAL_PREFIX
default "i686-pc-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201109
default "i686-pc-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201203
default "i686-pc-linux-gnu" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_201209
- default "bfin-uclinux" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1 && !BR2_BFIN_FDPIC
- default "bfin-linux-uclibc" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1 && BR2_BFIN_FDPIC
- default "bfin-uclinux" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1 && !BR2_BFIN_FDPIC
- default "bfin-linux-uclibc" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1 && BR2_BFIN_FDPIC
- default "bfin-uclinux" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2 && !BR2_BFIN_FDPIC
- default "bfin-linux-uclibc" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2 && BR2_BFIN_FDPIC
+ default "bfin-uclinux" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1 && BR2_BINFMT_FLAT
+ default "bfin-linux-uclibc" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2011R1 && BR2_BINFMT_FDPIC
+ default "bfin-uclinux" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1 && BR2_BINFMT_FLAT
+ default "bfin-linux-uclibc" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R1 && BR2_BINFMT_FDPIC
+ default "bfin-uclinux" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2 && BR2_BINFMT_FLAT
+ default "bfin-linux-uclibc" if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2 && BR2_BINFMT_FDPIC
default $(BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX) \
if BR2_TOOLCHAIN_EXTERNAL_CUSTOM
diff --git a/toolchain/toolchain-external/ext-tool.mk b/toolchain/toolchain-external/ext-tool.mk
index b477bc0..92183a4 100644
--- a/toolchain/toolchain-external/ext-tool.mk
+++ b/toolchain/toolchain-external/ext-tool.mk
@@ -160,6 +160,10 @@ ifneq ($(CC_TARGET_ABI_),)
TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(CC_TARGET_ABI_)
TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
endif
+ifeq ($(BR2_BINFMT_FLAT),y)
+TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt
+TOOLCHAIN_EXTERNAL_WRAPPER_ARGS += -DBR_BINFMT_FLAT
+endif
ifneq ($(BR2_TARGET_OPTIMIZATION),)
TOOLCHAIN_EXTERNAL_CFLAGS += $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
diff --git a/toolchain/toolchain-external/ext-toolchain-wrapper.c b/toolchain/toolchain-external/ext-toolchain-wrapper.c
index a92bada..9a2fc70 100644
--- a/toolchain/toolchain-external/ext-toolchain-wrapper.c
+++ b/toolchain/toolchain-external/ext-toolchain-wrapper.c
@@ -47,6 +47,9 @@ static char *predef_args[] = {
#ifdef BR_64
"-m64",
#endif
+#ifdef BR_BINFMT_FLAT
+ "-Wl,-elf2flt",
+#endif
#ifdef BR_ADDITIONAL_CFLAGS
BR_ADDITIONAL_CFLAGS
#endif
--
1.7.0.4
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