1 // Copyright 2009 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 #include "textflag.h" 6 7 TEXT _rt0_arm_linux(SB),NOSPLIT,$-4 8 MOVW (R13), R0 // argc 9 MOVW $4(R13), R1 // argv 10 MOVW $_rt0_arm_linux1(SB), R4 11 B (R4) 12 13 // When building with -buildmode=c-shared, this symbol is called when the shared 14 // library is loaded. 15 TEXT _rt0_arm_linux_lib(SB),NOSPLIT,$0 16 B _rt0_arm_lib(SB) 17 18 TEXT _rt0_arm_linux1(SB),NOSPLIT,$-4 19 // We first need to detect the kernel ABI, and warn the user 20 // if the system only supports OABI. 21 // The strategy here is to call some EABI syscall to see if 22 // SIGILL is received. 23 // If you get a SIGILL here, you have the wrong kernel. 24 25 // Save argc and argv (syscall will clobber at least R0). 26 MOVM.DB.W [R0-R1], (R13) 27 28 // do an EABI syscall 29 MOVW $20, R7 // sys_getpid 30 SWI $0 // this will trigger SIGILL on OABI systems 31 32 MOVM.IA.W (R13), [R0-R1] 33 B runtimert0_go(SB) 34
