+ Tom,
Hi Simon,
On Mon, Nov 6, 2023 at 12:29 AM Simon Glass sjg@chromium.org wrote:
Hi Bin,
On Sun, 5 Nov 2023 at 14:05, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Mon, Oct 2, 2023 at 9:15 AM Simon Glass sjg@chromium.org wrote:
This is needed to support Truetype fonts. In any case, the compiler expects SSE to be available in 64-bit mode. Enable it.
Signed-off-by: Simon Glass sjg@chromium.org Suggested-by: Bin Meng bmeng.cn@gmail.com
(no changes since v1)
arch/x86/config.mk | 1 - arch/x86/cpu/x86_64/cpu.c | 11 +++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-)
I didn't suggest we enable SSE for x86. This is the wrong approach.
We should rewrite the Truetype support codes to avoid using float/double types.
This way the Truetype codes can be used on any other architectures without the need for the compiler to emit explicit floating instructions.
I am not aware of any such library. At present, enabling truetype on coreboot64 causes a hang.
If that's the case, we will have to either:
- Switch all U-Boot builds' to use software float (e.g. -msoft-float) which unfortunately depends on the compiler runtime intrinsics. - Introduce a Kconfig option for hard float enabling and let each architecture to decide whether it implements it or not, and update Truetype to depend on the hard float.
Regards, Bin