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ArmPkg/CompilerIntrinsicsLib: provide atomics intrinsics

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Gary reports the GCC 10 will emit calls to atomics intrinsics routines
unless -mno-outline-atomics is specified. This means GCC-10 introduces
new intrinsics, and even though it would be possible to work around this
by specifying the command line option, this would require a new GCC10
toolchain profile to be created, which we prefer to avoid.

So instead, add the new intrinsics to our library so they are provided
when necessary.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Tested-by: Gary Lin <glin@suse.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
This commit is contained in:
Ard Biesheuvel
2020-05-20 13:44:48 +02:00
committed by mergify[bot]
parent 4403bbd7c0
commit ca407c7246
2 changed files with 145 additions and 0 deletions
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3
ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
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@@ -79,6 +79,9 @@
Arm/ldivmod.asm | MSFT
Arm/llsr.asm | MSFT
[Sources.AARCH64]
AArch64/Atomics.S | GCC
[Packages]
MdePkg/MdePkg.dec
ArmPkg/ArmPkg.dec