diff options
| author | Jens Wiklander <jens.wiklander@linaro.org> | 2015-12-11 16:35:10 +0100 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2016-02-04 15:39:53 +0100 |
| commit | 0de9a5fb2f86132c703c27f603125e1e5f29b5a2 (patch) | |
| tree | f69f1d85c7d9684c355d8701f2e7e30ae1cf581a /mk/config.mk | |
| parent | 3276098dd4bfdd21da5b85e992a5bbd9a35ea69e (diff) | |
arm: add TA hard-float support
Adds support for hard-float in TAs. Hard-float is enabled by default for
all platforms which are capable, currently all. Soft-float is still
available if needed.
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (QEMU, FVP)
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'mk/config.mk')
| -rw-r--r-- | mk/config.mk | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mk/config.mk b/mk/config.mk index 88f572a4..fcd33f75 100644 --- a/mk/config.mk +++ b/mk/config.mk @@ -104,5 +104,13 @@ TA_SIGN_KEY ?= keys/default_ta.pem # may not because they obtain the isoc functions from elsewhere CFG_LIBUTILS_WITH_ISOC ?= y -# Floating point support for TAs default on only for arm32 core -CFG_TA_FLOAT_SUPPORT ?= $(CFG_ARM32_core) +# Enables floating point support for user TAs +# ARM32: EABI defines both a soft-float ABI and a hard-float ABI, +# hard-float is basically a super set of soft-float. Hard-float +# requires all the support routines provided for soft-float, but the +# compiler may choose to optimize to not use some of them and use +# the floating-point registers instead. +# ARM64: EABI doesn't define a soft-float ABI, everything is hard-float (or +# nothing with ` -mgeneral-regs-only`) +# With CFG_TA_FLOAT_SUPPORT enabled TA code is free use floating point types +CFG_TA_FLOAT_SUPPORT ?= y |