From b4e7d630bc6fbf654a20a4bebda94a8150811bea Mon Sep 17 00:00:00 2001 From: Mark Ryan Date: Tue, 7 Nov 2023 10:09:49 +0100 Subject: cmd/go: add GORISCV64 environment variable The variable represents the RISC-V user-mode application profile for which to compile. Valid values are rva20u64 (the default) and rva22u64. Setting GORISCV64=rva20u64 defines the riscv64.rva20u64 build tag, sets the internal variable buildcfg.GORISCV64 to 20 and defines the macro GORISCV64_rva20u64 for use in assembly language code. Setting GORISCV64=rva22u64 defines the riscv64.rva20u64 and riscv64.rva22u64 build tags, sets the internal variable buildcfg.GORISCV64 to 22 and defines the macro GORISCV64_rva22u64 for use in assembly language code. This patch only provides a mechanism for the compiler and hand-coded assembly language functions to take advantage of the RISC-V extensions mandated by the application profiles. Further patches will be required to get the compiler/assembler and assembly language functions to actually generate and use these extensions. Fixes #61476 Change-Id: I9195ae6ee71703cd2112160e89157ab63b8391af Reviewed-on: https://go-review.googlesource.com/c/go/+/541135 Reviewed-by: M Zhuo Reviewed-by: Joel Sing LUCI-TryBot-Result: Go LUCI Reviewed-by: Wang Yaduo Reviewed-by: Cherry Mui Reviewed-by: Bryan Mills Run-TryBot: M Zhuo TryBot-Result: Gopher Robot --- src/cmd/internal/testdir/testdir_test.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/cmd/internal/testdir/testdir_test.go') diff --git a/src/cmd/internal/testdir/testdir_test.go b/src/cmd/internal/testdir/testdir_test.go index 0fb56e6c78..a26733d856 100644 --- a/src/cmd/internal/testdir/testdir_test.go +++ b/src/cmd/internal/testdir/testdir_test.go @@ -1468,7 +1468,7 @@ var ( "ppc64x": {}, // A pseudo-arch representing both ppc64 and ppc64le "s390x": {}, "wasm": {}, - "riscv64": {}, + "riscv64": {"GORISCV64", "rva20u64", "rva22u64"}, } ) -- cgit v1.3