diff options
| author | majiang <ma.jiang@zte.com.cn> | 2018-11-16 15:39:59 +0000 |
|---|---|---|
| committer | Lynn Boger <laboger@linux.vnet.ibm.com> | 2018-11-20 14:50:09 +0000 |
| commit | 1135071b47b1c9c0069d384c136e94d2883282bc (patch) | |
| tree | 171c9974d402694882265d1e647d1f1ab3140b91 /src/runtime/asm_ppc64x.s | |
| parent | 2cc6d62d666f49d91c6d088bcba3ef18072d093f (diff) | |
| download | go-1135071b47b1c9c0069d384c136e94d2883282bc.tar.gz go-1135071b47b1c9c0069d384c136e94d2883282bc.zip | |
cmd/link, runtime: add initial cgo support for ppc64
We should be able to build docker after this get applied.
Updates #13192
Change-Id: I5378d3518fac52d6bd4c97828884c1b382b7ace5
GitHub-Last-Rev: 210b7bc2e172f641f1102982e04542bf73a1aa46
GitHub-Pull-Request: golang/go#28546
Reviewed-on: https://go-review.googlesource.com/c/146898
Reviewed-by: Jiang Ma <ma.jiang@zte.com.cn>
Reviewed-by: Clément Chigot <clement.chigot@atos.net>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/runtime/asm_ppc64x.s')
| -rw-r--r-- | src/runtime/asm_ppc64x.s | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/runtime/asm_ppc64x.s b/src/runtime/asm_ppc64x.s index fb0003c9b2..0a89b57cd8 100644 --- a/src/runtime/asm_ppc64x.s +++ b/src/runtime/asm_ppc64x.s @@ -36,6 +36,12 @@ TEXT runtime·rt0_go(SB),NOSPLIT,$0 MOVD _cgo_init(SB), R12 CMP R0, R12 BEQ nocgo +#ifdef GOARCH_ppc64 + // ppc64 use elf ABI v1. we must get the real entry address from + // first slot of the function descriptor before call. + MOVD 8(R12), R2 + MOVD (R12), R12 +#endif MOVD R12, CTR // r12 = "global function entry point" MOVD R13, R5 // arg 2: TLS base pointer MOVD $setg_gcc<>(SB), R4 // arg 1: setg @@ -597,6 +603,16 @@ g0: #endif // This is a "global call", so put the global entry point in r12 MOVD R3, R12 + +#ifdef GOARCH_ppc64 + // ppc64 use elf ABI v1. we must get the real entry address from + // first slot of the function descriptor before call. +#ifndef GOOS_aix + // aix just passes the function pointer for the moment, see golang.org/cl/146898 for details. + MOVD 8(R12), R2 + MOVD (R12), R12 +#endif +#endif MOVD R12, CTR MOVD R4, R3 // arg in r3 BL (CTR) @@ -754,9 +770,20 @@ TEXT runtime·setg(SB), NOSPLIT, $0-8 BL runtime·save_g(SB) RET +#ifdef GOARCH_ppc64 +TEXT setg_gcc<>(SB),NOSPLIT|NOFRAME,$0-0 + DWORD $_setg_gcc<>(SB) + DWORD $0 + DWORD $0 +#endif + // void setg_gcc(G*); set g in C TLS. // Must obey the gcc calling convention. +#ifdef GOARCH_ppc64le TEXT setg_gcc<>(SB),NOSPLIT|NOFRAME,$0-0 +#else +TEXT _setg_gcc<>(SB),NOSPLIT|NOFRAME,$0-0 +#endif // The standard prologue clobbers R31, which is callee-save in // the C ABI, so we have to use $-8-0 and save LR ourselves. MOVD LR, R4 |