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| // Copyright 2018 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"
|
| // _rt0_ppc64_aix is a function descriptor of the entrypoint function
| // __start. This name is needed by cmd/link.
| DATA _rt0_ppc64_aix+0(SB)/8, $__start<>(SB)
| DATA _rt0_ppc64_aix+8(SB)/8, $TOC(SB)
| GLOBL _rt0_ppc64_aix(SB), NOPTR, $16
|
|
| // The starting function must return in the loader to
| // initialise some librairies, especially libthread which
| // creates the main thread and adds the TLS in R13
| // R19 contains a function descriptor to the loader function
| // which needs to be called.
| // This code is similar to the __start function in C
| TEXT __start<>(SB),NOSPLIT,$-8
| XOR R0, R0
| MOVD $libc___n_pthreads(SB), R4
| MOVD 0(R4), R4
| MOVD $libc___mod_init(SB), R5
| MOVD 0(R5), R5
| MOVD 0(R19), R0
| MOVD R2, 40(R1)
| MOVD 8(R19), R2
| MOVD R18, R3
| MOVD R0, CTR
| BL (CTR) // Return to AIX loader
|
| // Launch rt0_go
| MOVD 40(R1), R2
| MOVD R14, R3 // argc
| MOVD R15, R4 // argv
| MOVD $runtime·rt0_go(SB), R12
| MOVD R12, CTR
| BR (CTR)
|
|
