diff options
| author | Joel Sing <joel@sing.id.au> | 2023-03-14 20:50:38 +1100 |
|---|---|---|
| committer | Joel Sing <joel@sing.id.au> | 2023-03-18 06:28:23 +0000 |
| commit | 6827f0d7722ae08cf25cf2212f78bfc6ab8bfd0d (patch) | |
| tree | f53e2c6c72a84ab0eaf4ab5aaee07bd2a17a86fd /src/runtime/cgo | |
| parent | ada6ffca8399af9ad24e82502db1429b85b7405f (diff) | |
| download | go-6827f0d7722ae08cf25cf2212f78bfc6ab8bfd0d.tar.xz | |
runtime: provide and use a GO_PPC64X_HAS_FUNCDESC define
Rather than implying that all ppc64 GOARCHs use function descriptors,
provide a define for platforms that make use of function descriptors.
Condition on GO_PPC64X_HAS_FUNCDESC when choosing whether or not
to load the entry address from the first slot of the function
descriptor.
Updates #56001.
Change-Id: I9cdc788f2de70a1262c17d8485b555383d1374b5
Reviewed-on: https://go-review.googlesource.com/c/go/+/476117
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Joel Sing <joel@sing.id.au>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Diffstat (limited to 'src/runtime/cgo')
| -rw-r--r-- | src/runtime/cgo/asm_ppc64x.s | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/runtime/cgo/asm_ppc64x.s b/src/runtime/cgo/asm_ppc64x.s index c201005044..fea749670b 100644 --- a/src/runtime/cgo/asm_ppc64x.s +++ b/src/runtime/cgo/asm_ppc64x.s @@ -30,10 +30,8 @@ TEXT crosscall2(SB),NOSPLIT|NOFRAME,$0 BL runtime·reginit(SB) BL runtime·load_g(SB) -#ifdef GOARCH_ppc64 - // ppc64 use elf ABI v1. we must get the real entry address from - // first slot of the function descriptor before call. - // Same for AIX. +#ifdef GO_PPC64X_HAS_FUNCDESC + // Load the real entry address from the first slot of the function descriptor. MOVD 8(R3), R2 MOVD (R3), R3 #endif |