On 6/28/16 9:18 AM, Shi, Steven wrote:
Introduce three new toolchains in edk2. The first two ones support Link Time
Optimization (LTO) for aggressive code size improvement and the third one is
for static analysis.
CLANG38 : Enable LLVM Link Time Optimization (LTO) and code size
optimization flag (-Os) by default for aggressive code size improvement.
> X64 code is small code model + position independent code (PIE).
One problem I've run into trying to build with clang is that we have a
set of files which are the same across platforms, and they use varargs.
With gcc, we can just set -mabi=ms and be done with it, but it appears
clang doesn't have that option. Do you know of a way to set the default
ABI with clang, or would we need to add an __attribute__((ms_abi))
anywhere we need to use varargs?
--
Bruce Cran
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