diff options
| author | mo khan <mo@mokhan.ca> | 2025-05-11 21:12:57 -0600 |
|---|---|---|
| committer | mo khan <mo@mokhan.ca> | 2025-05-11 21:12:57 -0600 |
| commit | 60440f90dca28e99a31dd328c5f6d5dc0f9b6a2e (patch) | |
| tree | 2f54adf55086516f162f0a55a5347e6b25f7f176 /vendor/github.com/ebitengine/purego/sys_arm64.s | |
| parent | 05ca9b8d3a9c7203a3a3b590beaa400900bd9007 (diff) | |
chore: vendor go dependencies
Diffstat (limited to 'vendor/github.com/ebitengine/purego/sys_arm64.s')
| -rw-r--r-- | vendor/github.com/ebitengine/purego/sys_arm64.s | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/vendor/github.com/ebitengine/purego/sys_arm64.s b/vendor/github.com/ebitengine/purego/sys_arm64.s new file mode 100644 index 0000000..a68fdb9 --- /dev/null +++ b/vendor/github.com/ebitengine/purego/sys_arm64.s @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: Apache-2.0 +// SPDX-FileCopyrightText: 2022 The Ebitengine Authors + +//go:build darwin || freebsd || linux || windows + +#include "textflag.h" +#include "go_asm.h" +#include "funcdata.h" + +#define STACK_SIZE 64 +#define PTR_ADDRESS (STACK_SIZE - 8) + +// syscall15X calls a function in libc on behalf of the syscall package. +// syscall15X takes a pointer to a struct like: +// struct { +// fn uintptr +// a1 uintptr +// a2 uintptr +// a3 uintptr +// a4 uintptr +// a5 uintptr +// a6 uintptr +// a7 uintptr +// a8 uintptr +// a9 uintptr +// a10 uintptr +// a11 uintptr +// a12 uintptr +// a13 uintptr +// a14 uintptr +// a15 uintptr +// r1 uintptr +// r2 uintptr +// err uintptr +// } +// syscall15X must be called on the g0 stack with the +// C calling convention (use libcCall). +GLOBL ·syscall15XABI0(SB), NOPTR|RODATA, $8 +DATA ·syscall15XABI0(SB)/8, $syscall15X(SB) +TEXT syscall15X(SB), NOSPLIT, $0 + SUB $STACK_SIZE, RSP // push structure pointer + MOVD R0, PTR_ADDRESS(RSP) + MOVD R0, R9 + + FMOVD syscall15Args_f1(R9), F0 // f1 + FMOVD syscall15Args_f2(R9), F1 // f2 + FMOVD syscall15Args_f3(R9), F2 // f3 + FMOVD syscall15Args_f4(R9), F3 // f4 + FMOVD syscall15Args_f5(R9), F4 // f5 + FMOVD syscall15Args_f6(R9), F5 // f6 + FMOVD syscall15Args_f7(R9), F6 // f7 + FMOVD syscall15Args_f8(R9), F7 // f8 + + MOVD syscall15Args_a1(R9), R0 // a1 + MOVD syscall15Args_a2(R9), R1 // a2 + MOVD syscall15Args_a3(R9), R2 // a3 + MOVD syscall15Args_a4(R9), R3 // a4 + MOVD syscall15Args_a5(R9), R4 // a5 + MOVD syscall15Args_a6(R9), R5 // a6 + MOVD syscall15Args_a7(R9), R6 // a7 + MOVD syscall15Args_a8(R9), R7 // a8 + MOVD syscall15Args_arm64_r8(R9), R8 // r8 + + MOVD syscall15Args_a9(R9), R10 + MOVD R10, 0(RSP) // push a9 onto stack + MOVD syscall15Args_a10(R9), R10 + MOVD R10, 8(RSP) // push a10 onto stack + MOVD syscall15Args_a11(R9), R10 + MOVD R10, 16(RSP) // push a11 onto stack + MOVD syscall15Args_a12(R9), R10 + MOVD R10, 24(RSP) // push a12 onto stack + MOVD syscall15Args_a13(R9), R10 + MOVD R10, 32(RSP) // push a13 onto stack + MOVD syscall15Args_a14(R9), R10 + MOVD R10, 40(RSP) // push a14 onto stack + MOVD syscall15Args_a15(R9), R10 + MOVD R10, 48(RSP) // push a15 onto stack + + MOVD syscall15Args_fn(R9), R10 // fn + BL (R10) + + MOVD PTR_ADDRESS(RSP), R2 // pop structure pointer + ADD $STACK_SIZE, RSP + + MOVD R0, syscall15Args_a1(R2) // save r1 + MOVD R1, syscall15Args_a2(R2) // save r3 + FMOVD F0, syscall15Args_f1(R2) // save f0 + FMOVD F1, syscall15Args_f2(R2) // save f1 + FMOVD F2, syscall15Args_f3(R2) // save f2 + FMOVD F3, syscall15Args_f4(R2) // save f3 + + RET |
