diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-08-08 12:46:50 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-08-09 10:08:35 +0200 |
| commit | 78d706e23512435c8166afe88600c4de493e0e68 (patch) | |
| tree | a915fc104b19ef6cf9b1c188dc53d6d6c9e2a4d4 | |
| parent | 0f73cca02b645267cb11ab8ddf1ba88af5ec3246 (diff) | |
| download | edk2-platforms-78d706e23512435c8166afe88600c4de493e0e68.tar.xz | |
StdLib/LibC: avoid LTO code for compiler intrinsics
The softfloat routines and some other routines supplied by LibC
will satisfy references to compiler intrinsics that are emitted
by the compiler backend, which under LTO means that the link-time
code generation may emit references to symbols that have been
optimized away already.
Work around this by building the ARM and AARCH64 versions of LibC
and the softfloat library without LTO.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
| -rw-r--r-- | StdLib/LibC/LibC.inf | 1 | ||||
| -rw-r--r-- | StdLib/LibC/Softfloat/Softfloat.inf | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/StdLib/LibC/LibC.inf b/StdLib/LibC/LibC.inf index f136306485..6039bb81c7 100644 --- a/StdLib/LibC/LibC.inf +++ b/StdLib/LibC/LibC.inf @@ -120,3 +120,4 @@ #
[BuildOptions]
MSFT:*_*_IA32_CC_FLAGS = /GL-
+ GCC:*_*_ARM_CC_FLAGS = -fno-lto
diff --git a/StdLib/LibC/Softfloat/Softfloat.inf b/StdLib/LibC/Softfloat/Softfloat.inf index 99763bcb57..460406c38f 100644 --- a/StdLib/LibC/Softfloat/Softfloat.inf +++ b/StdLib/LibC/Softfloat/Softfloat.inf @@ -71,4 +71,4 @@ # Nasty things could happen if you do.
[BuildOptions]
- GCC:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare -fno-tree-vrp
+ GCC:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare -fno-tree-vrp -fno-lto
|