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14 changes: 10 additions & 4 deletions external/ippcp_internal/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -7,13 +7,19 @@ In order to build your own IPP crypto, please follow below steps:
2. Read the ipp-crypto README to prepare your build environment.
3. Make sure ipp-crypto source code are prepared.
4. Build the target ippcp library with the prepared Makefile:
a. Build the target ippcp library with All-Loads-Mitigation:
1. Build the target ippcp library with All-Loads-Mitigation:
```shell
$ make MITIGATION-CVE-2020-0551=LOAD
b. Build the target ippcp library with Branch-Mitigation:
```
2. Build the target ippcp library with Branch-Mitigation:
```shell
$ make MITIGATION-CVE-2020-0551=CF
c. Build the target ippcp library with No-Mitigation:
```
3. Build the target ippcp library with No-Mitigation:
```shell
$ make
```
The built-out static library `libippcp.a` and header files will be copied into the right place.
Remember to "make clean" before switching the build.
Remember to `make clean` before switching the build.

For IPP crypto reproducible build, please follow the instructions in [reproducibility README.md](../../linux/reproducibility/README.md) to reproduce the prebuilt IPP crypto.