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// Copyright 2012 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.
/*
* Apple still insists on underscore prefixes for C function names.
*/
#if defined(__APPLE__)
#define EXT(s) _##s
#else
#define EXT(s) s
#endif
/*
* void crosscall_arm2(void (*fn)(void), void *g, void *m)
*
* Calling into the 5c tool chain, where all registers are caller save.
* Called from standard ARM EABI, where r4-r11 are callee-save, so they
* must be saved explicitly.
*/
.globl EXT(crosscall_arm2)
EXT(crosscall_arm2):
push {r4, r5, r6, r7, r8, r9, r10, r11, ip, lr}
mov r10, r1 // g
mov r9, r2 // m
mov r3, r0 // save r0, cgo_tls_set_gm will clobber it
bl EXT(x_cgo_save_gm) // save current g and m into TLS variable
mov lr, pc
mov pc, r3
pop {r4, r5, r6, r7, r8, r9, r10, r11, ip, pc}
.globl EXT(__stack_chk_fail_local)
EXT(__stack_chk_fail_local):
1:
b 1b
#ifdef __ELF__
.section .note.GNU-stack,"",%progbits
#endif
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