Editando: rt0_linux_arm.s
// Copyright 2009 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" TEXT _rt0_arm_linux(SB),NOSPLIT|NOFRAME,$0 MOVW (R13), R0 // argc MOVW $4(R13), R1 // argv MOVW $_rt0_arm_linux1(SB), R4 B (R4) // When building with -buildmode=c-shared, this symbol is called when the shared // library is loaded. TEXT _rt0_arm_linux_lib(SB),NOSPLIT,$0 B _rt0_arm_lib(SB) TEXT _rt0_arm_linux1(SB),NOSPLIT|NOFRAME,$0 // We first need to detect the kernel ABI, and warn the user // if the system only supports OABI. // The strategy here is to call some EABI syscall to see if // SIGILL is received. // If you get a SIGILL here, you have the wrong kernel. // Save argc and argv (syscall will clobber at least R0). MOVM.DB.W [R0-R1], (R13) // do an EABI syscall MOVW $20, R7 // sys_getpid SWI $0 // this will trigger SIGILL on OABI systems MOVM.IA.W (R13), [R0-R1] B runtime·rt0_go(SB)
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