[Buildroot] [PATCH v6 4/7] arch: toolchain: Introduce binary format FLAT types.
Sonic Zhang
sonic.adi at gmail.com
Thu Apr 18 10:06:29 UTC 2013
From: Sonic Zhang <sonic.zhang at analog.com>
Just introduce the symbol and options in arch generic Config.in.
Add FLAT types specific compiling flags into package makefile.
Signed-off-by: Sonic Zhang <sonic.zhang at analog.com>
---
v5-change:
- Move FLAT types specific compiling flags back to package makefile.
The flags can't be set to compile Linux kernel.
v3-changes:
- Add dependancy to bfin and m68k
- Add help text for FLAT binary types.
- Split shared flat flags.
---
arch/Config.in | 26 ++++++++++++++++++++++++++
package/Makefile.in | 11 +++++++++++
2 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/arch/Config.in b/arch/Config.in
index 175add5..3ffe82e 100644
--- a/arch/Config.in
+++ b/arch/Config.in
@@ -211,6 +211,32 @@ config BR2_BINFMT_FLAT
endchoice
+# Set up flat binary type
+choice
+ prompt "FLAT Binary type"
+ depends on BR2_BINFMT_FLAT
+ default BR2_BINFMT_FLAT_ONE
+
+config BR2_BINFMT_FLAT_ONE
+ bool "One memory region"
+ help
+ All segments are linked into one memory region.
+
+config BR2_BINFMT_FLAT_SEP_DATA
+ bool "Separate data and code region"
+ depends on BR2_bfin || BR2_m68k
+ help
+ Allow for the data and text segments to be separated and placed in
+ different regions of memory.
+
+config BR2_BINFMT_FLAT_SHARED
+ bool "Shared binary"
+ depends on BR2_bfin || BR2_m68k
+ help
+ Allow to load and link indiviual FLAT binaries at run time.
+
+endchoice
+
if BR2_arm || BR2_armeb
source "arch/Config.in.arm"
endif
diff --git a/package/Makefile.in b/package/Makefile.in
index a8bf36b..dd3bc7d 100644
--- a/package/Makefile.in
+++ b/package/Makefile.in
@@ -103,6 +103,17 @@ TARGET_CFLAGS = $(TARGET_CPPFLAGS) $(TARGET_ABI) $(TARGET_OPTIMIZATION) $(TARGET
TARGET_CXXFLAGS = $(TARGET_CFLAGS)
TARGET_LDFLAGS = $(call qstrip,$(BR2_TARGET_LDFLAGS))
+ifeq ($(BR2_BINFMT_FLAT_SHARED),y)
+TARGET_LDFLAGS += -mid-shared-library -mshared-library-id=0
+TARGET_CFLAGS += -mid-shared-library -mshared-library-id=0
+TARGET_CXXFLAGS += -mid-shared-library -mshared-library-id=0
+endif
+ifeq ($(BR2_BINFMT_FLAT_SEP_DATA),y)
+TARGET_LDFLAGS += -msep-data
+TARGET_CFLAGS += -msep-data
+TARGET_CXXFLAGS += -msep-data
+endif
+
ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_CTNG),y)
TARGET_CROSS=$(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-
else
--
1.7.0.4
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