blob: 8a5722f0069030126e2957f9d8c25cf09533d6db [file] [log] [blame]
// 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┬Ěrt0_go(SB)