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dingyu pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
new d5f1d25 Fix switchless sample code
new 3eeaf9a Merge pull request #260 from xu-cheng/switchless
d5f1d25 is described below
commit d5f1d2540488e5e36ff5887499ad527e0379a284
Author: Cheng XU <[email protected]>
AuthorDate: Sat Aug 1 01:48:26 2020 +0000
Fix switchless sample code
In order to use the switchless feature of the SGX, the app binary needs
to be linked with the following flags.
```
-Wl,--whole-archive -lsgx_uswitchless -Wl,--no-whole-archive
````
Noted that there is currently no proper way to pass custom link flags to
all the binaries in a cargo project. As such, the `link_args` macro need
to be set for each of Rust files with `main` methods.
References:
* Build flags used in Intel SGX sample code:
https://github.com/intel/linux-sgx/blob/ce4a18d9a0963b14f717cc7462241cfadd233f55/SampleCode/Switchless/Makefile#L104
* Rust tracking issue on `link_args`:
https://github.com/rust-lang/rust/issues/29596
* PR for `cargo:rustc-link-arg-bins` in cargo build script:
https://github.com/rust-lang/cargo/pull/8441
---
samplecode/switchless/app/src/main.rs | 3 +++
1 file changed, 3 insertions(+)
diff --git a/samplecode/switchless/app/src/main.rs
b/samplecode/switchless/app/src/main.rs
index aa08f6a..4de1afd 100644
--- a/samplecode/switchless/app/src/main.rs
+++ b/samplecode/switchless/app/src/main.rs
@@ -15,6 +15,9 @@
// specific language governing permissions and limitations
// under the License..
+#![feature(link_args)]
+#![link_args = "-Wl,--whole-archive -lsgx_uswitchless -Wl,--no-whole-archive"]
+
extern crate sgx_types;
extern crate sgx_urts;
use sgx_types::*;
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