[Buildroot] [PATCH] arch/Config.in: Allow arm7tdmi to select BR2_BINFMT_FLAT
Axel Lin
axel.lin at ingics.com
Fri Sep 6 05:45:49 UTC 2013
Allow BR2_arm7tdmi to select BR2_BINFMT_FLAT by adding BR2_arm7tdmi to
BR2_BINFMT_FLAT dependency.
Remove BR2_m68k dependency for BR2_BINFMT_FDPIC because m68k does not support
FDPIC.
Also update BR2_BINFMT_ELF dependency to exclude BR2_arm7tdmi. So users of
MMU-capable ARM variants wouldn't be confused by the availability of FLAT and
ELF as binary formats.
Signed-off-by: Axel Lin <axel.lin at ingics.com>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Cc: Thomas De Schampheleire <thomas.de.schampheleire at gmail.com>
---
This is v2 of "[PATCH 2/2] arch/Config.in: Allow ARM to select BR2_BINFMT_FLAT",
I change the subject line because it actually allows arm7tdmi to select
BR2_BINFMT_FLAT.
The changes in v2:
Add BR2_arm7tdmi rather than BR2_arm to BR2_BINFMT_FLAT dependency.
Remove BR2_m68k dependency for BR2_BINFMT_FDPIC.
Also update BR2_BINFMT_ELF dependency to exclude BR2_arm7tdmi.
Note:
I didn't add BR2_arm_cortex_m3 and BR2_arm_cortex_m4 to the dependency in this
patch because they are not exist in current build system. And I think it's ok
to have an incremental patch for adding them when they are supported by
buildroot.
I think further improvement for using !BR2_USE_MMU dependency suggested by
Thomas Petazzoni or having "ARCH_HAS_MMU and/or ARCH_SUPPORTS_FLAT_BINARY"
suggested by Thomas De Schampheleire can also be in incremental patchs.
Regards,
Axel
Signed-off-by: Axel Lin <axel.lin at ingics.com>
---
arch/Config.in | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/Config.in b/arch/Config.in
index 3fd8c1c..f88594c 100644
--- a/arch/Config.in
+++ b/arch/Config.in
@@ -225,12 +225,13 @@ config BR2_GCC_TARGET_MODE
# Set up target binary format
choice
prompt "Target Binary Format"
- depends on BR2_bfin || BR2_m68k
- default BR2_BINFMT_FDPIC
+ depends on BR2_arm7tdmi || BR2_m68k || BR2_bfin
+ default BR2_BINFMT_FLAT if BR2_arm7tdmi || BR2_m68k
+ default BR2_BINFMT_FDPIC if BR2_bfin
config BR2_BINFMT_ELF
bool "ELF"
- depends on !BR2_bfin && !BR2_m68k
+ depends on !BR2_arm7tdmi && !BR2_bfin && !BR2_m68k
help
ELF (Executable and Linkable Format) is a format for libraries and
executables used across different architectures and operating
@@ -238,7 +239,7 @@ config BR2_BINFMT_ELF
config BR2_BINFMT_FDPIC
bool "FDPIC"
- depends on BR2_bfin || BR2_m68k
+ depends on BR2_bfin
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
@@ -247,7 +248,7 @@ config BR2_BINFMT_FDPIC
config BR2_BINFMT_FLAT
bool "FLAT"
- depends on BR2_bfin || BR2_m68k
+ depends on BR2_arm7tdmi || BR2_bfin || BR2_m68k
select BR2_PREFER_STATIC_LIB
help
FLAT binary is a relatively simple and lightweight executable format
--
1.8.1.2
More information about the buildroot
mailing list