github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/mobile/app/android_arm.c (about) 1 // Copyright 2014 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build android,arm 6 7 #include <android/log.h> 8 #include <stdint.h> 9 #include <string.h> 10 #include "_cgo_export.h" 11 12 #define AT_PLATFORM 15 13 #define AT_HWCAP 16 14 #define HWCAP_VFP (1 << 6) 15 #define HWCAP_VFPv3 (1 << 13) 16 17 void build_auxv(uint32_t *auxv, size_t len) { 18 // Minimum auxv required by runtime/os_linux_arm.go. 19 int i; 20 if (len < 5) { 21 __android_log_print(ANDROID_LOG_FATAL, "Go", "auxv len %d too small", len); 22 } 23 auxv[0] = AT_PLATFORM; 24 *(char**)&auxv[1] = strdup("v7l"); 25 26 auxv[2] = AT_HWCAP; 27 auxv[3] = HWCAP_VFP | HWCAP_VFPv3; 28 for (i = 4; i < len; i++) { 29 auxv[i] = 0; 30 } 31 }