On 08/18/2014 02:08 PM, Denys Dmytriyenko wrote:
From: Denys Dmytriyenko <[email protected]>
Since we are re-using the Linux cross-compiler to compile Cortex-M3 firmware
code and not a dedicated bare-metal compiler, we have to match the float ABI
for the compiler to find the correct gnu/stubs.h files. In other words, if we
built a hardfp compiler, it doesn't have the corresponding gnu/stubs-soft.h
header and fails when building anything non-hardfp. Even though float ABI
flag doesn't make any sense for Cortex-M3 build. The error looks like this:
Just as a heads-up: A recent patch to OE core might affect this re-use
of the cross-compiler.
See:
http://www.mail-archive.com/[email protected]/msg55590.html
If you're using the cross-compiler to build applications for a less
capable architecture than the target you might need to provide an
explicit -mcpu=cortex-m3 parameter as it won't default to armv5t anymore.
There's some background on why this change was made at:
http://www.mail-archive.com/openembedded-core%40lists.openembedded.org/msg55489.html
Peter
| CC src/sys_exec/trace.o
| CC src/sys_exec/sys_init.o
| In file included from /OE/sysroots/am335x-evm/usr/include/features.h:402:0,
| from /OE/sysroots/am335x-evm/usr/include/stdint.h:25,
| from
/OE/sysroots/x86_64-linux/usr/lib/arm-oe-linux-gnueabi/gcc/arm-oe-linux-gnueabi/4.9.1/include/stdint.h:9,
| from src/sys_exec/rsc_table.h:13,
| from src/sys_exec/sys_init.c:19:
| /OE/sysroots/am335x-evm/usr/include/gnu/stubs.h:7:29: fatal error:
gnu/stubs-soft.h: No such file or directory
| # include <gnu/stubs-soft.h>
| ^
| compilation terminated.
| Makefile:51: recipe for target 'src/sys_exec/sys_init.o' failed
| make: *** [src/sys_exec/sys_init.o] Error 1
Signed-off-by: Denys Dmytriyenko <[email protected]>
---
recipes-bsp/am33x-cm3/am33x-cm3_git.bb | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/recipes-bsp/am33x-cm3/am33x-cm3_git.bb
b/recipes-bsp/am33x-cm3/am33x-cm3_git.bb
index 51ec9bd..7731992 100644
--- a/recipes-bsp/am33x-cm3/am33x-cm3_git.bb
+++ b/recipes-bsp/am33x-cm3/am33x-cm3_git.bb
@@ -14,8 +14,10 @@ SRC_URI =
"git://git.ti.com/ti-cm3-pm-firmware/amx3-cm3.git;protocol=git;branch=
S = "${WORKDIR}/git"
+FLOATABI = "${@base_contains("TUNE_FEATURES", "vfp", base_contains("TUNE_FEATURES", "callconvention-hard", " -mfloat-abi=hard", " -mfloat-abi=softfp", d), "" ,d)}"
+
do_compile() {
- make CROSS_COMPILE="${TARGET_PREFIX}"
+ make CROSS_COMPILE="${TARGET_PREFIX}" CC="${TARGET_PREFIX}gcc
${FLOATABI}"
}
do_install() {
--
_______________________________________________
meta-ti mailing list
[email protected]
https://lists.yoctoproject.org/listinfo/meta-ti
