bug: AARCH64 not correct process VFP #16
Comments
|
此问题在更新升级工具链以后出现的问题
解决方案: 尝试搜索过cargo 支持不同target构建 方案不适合我们场景， 建议方案： VFP.S 作为独立的汇编文件，在 |
guoweikang
added a commit
that referenced
this issue
Jul 26, 2024
issue: #16 -------- 1 Exception doesn't save VFP registers 2 kernel generate code shouldn't use VFP registers, need close -neon and -fp-armv8 3 taskctx need save/restore user application VFP ctx, need access VFP registers After rustc update, it would complain when 2&3 happend, on this commit :65a4f5896317115cf1edc74800f0da5d92923243, opened neon when fp_smid enable,it broken 2, so it create bug; after return user from kernel trap, usr vfp registers ctx are changed; This commit close neon when complie kernel, taskctx need access VFP registers through build.rs to fix Signed-off-by: guoweikang <[email protected]>
guoweikang
added a commit
that referenced
this issue
Jul 26, 2024
issue: #16 -------- 1 Exception doesn't save VFP registers 2 kernel generate code shouldn't use VFP registers, need close -neon and -fp-armv8 3 taskctx need save/restore user application VFP ctx, need access VFP registers After rustc update, it would complain when 2&3 happend, on this commit :65a4f5896317115cf1edc74800f0da5d92923243, opened neon when fp_smid enable,it broken 2, so it create bug; after return user from kernel trap, usr vfp registers ctx are changed; This commit close neon when complie kernel, taskctx need access VFP registers through build.rs to fix Signed-off-by: guoweikang <[email protected]>
Azure-stars
added a commit
that referenced
this issue
Jul 31, 2024
Guoweikang/aarch64 vfp fix for #16
Azure-stars
pushed a commit
that referenced
this issue
Jul 31, 2024
issue: #16 -------- 1 Exception doesn't save VFP registers 2 kernel generate code shouldn't use VFP registers, need close -neon and -fp-armv8 3 taskctx need save/restore user application VFP ctx, need access VFP registers After rustc update, it would complain when 2&3 happend, on this commit :65a4f5896317115cf1edc74800f0da5d92923243, opened neon when fp_smid enable,it broken 2, so it create bug; after return user from kernel trap, usr vfp registers ctx are changed; This commit close neon when complie kernel, taskctx need access VFP registers through build.rs to fix Signed-off-by: guoweikang <[email protected]>
Azure-stars
pushed a commit
that referenced
this issue
Jul 31, 2024
issue: #16 -------- 1 Exception doesn't save VFP registers 2 kernel generate code shouldn't use VFP registers, need close -neon and -fp-armv8 3 taskctx need save/restore user application VFP ctx, need access VFP registers After rustc update, it would complain when 2&3 happend, on this commit :65a4f5896317115cf1edc74800f0da5d92923243, opened neon when fp_smid enable,it broken 2, so it create bug; after return user from kernel trap, usr vfp registers ctx are changed; This commit close neon when complie kernel, taskctx need access VFP registers through build.rs to fix Signed-off-by: guoweikang <[email protected]>
guoweikang
added a commit
that referenced
this issue
Aug 14, 2024
issue: #16 -------- 1 Exception doesn't save VFP registers 2 kernel generate code shouldn't use VFP registers, need close -neon and -fp-armv8 3 taskctx need save/restore user application VFP ctx, need access VFP registers After rustc update, it would complain when 2&3 happend, on this commit :65a4f5896317115cf1edc74800f0da5d92923243, opened neon when fp_smid enable,it broken 2, so it create bug; after return user from kernel trap, usr vfp registers ctx are changed; This commit close neon when complie kernel, taskctx need access VFP registers through build.rs to fix Signed-off-by: guoweikang <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
AARCH64 动态库用例失败
郑友捷：
Starry 在65a4f5896317115cf1edc74800f0da5d92923243这次更新中将启用 fp_simd 时的平台更改为 aarch64-unknown-none，原先是aarch64-unknown-none-softfloat，然后导致运行到 memset 的时候 q0 的值发生了变化
但是如果我打开了fp_simd，同时指定了TARGET := aarch64-unknown-none-softfloat，会报这个错误
The text was updated successfully, but these errors were encountered: