| // Copyright 2016 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| #include "textflag.h" | |
| #include "asm_ppc64x.h" | |
| DEFINE_PPC64X_FUNCDESC(_rt0_ppc64_linux, _main<>) | |
| DEFINE_PPC64X_FUNCDESC(main, _main<>) | |
| TEXT _main<>(SB),NOSPLIT,$-8 | |
| // In a statically linked binary, the stack contains argc, | |
| // argv as argc string pointers followed by a NULL, envv as a | |
| // sequence of string pointers followed by a NULL, and auxv. | |
| // There is no TLS base pointer. | |
| // | |
| // TODO(austin): Support ABI v1 dynamic linking entry point | |
| XOR R0, R0 // Note, newer kernels may not always set R0 to 0. | |
| MOVD $runtime·rt0_go(SB), R12 | |
| MOVD R12, CTR | |
| MOVBZ runtime·iscgo(SB), R5 | |
| CMP R5, $0 | |
| BEQ nocgo | |
| BR (CTR) | |
| nocgo: | |
| MOVD 0(R1), R3 // argc | |
| ADD $8, R1, R4 // argv | |
| BR (CTR) |