mirror of https://github.com/acidanthera/audk.git
e1458aaded
GCC in LTO mode interoperates poorly with non-standard libraries that provide implementations of compiler intrinsics such as memcpy/memset or the stack protector entry points. Such libraries need to be built in non-LTO mode, and then referenced explicitly on the linker command line using a -plugin-opt=-pass-through=-lxxx linker option. However, if these intrinsics are also referenced directly, the LTO version of the code will be pulled in, and will happily satisfy all other references to the same symbol. So add a pair of glue libraries, for ARM and AARCH64, that reference the known intrinsics. Since the binaries live under ArmPkg directly, we can reference them in tools_def.txt. Under LD garbage collection, the object itself will be pruned, and so will the intrinsics that end up unused by the module. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> |
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| liblto-aarch64.a | ||
| liblto-aarch64.s | ||
| liblto-arm.a | ||
| liblto-arm.s | ||