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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/linux-syscalls.h>
.text
.type __pthread_clone, #function
.global __pthread_clone
.align 4
__pthread_clone:
@ insert the args onto the new stack
str r0, [r1, #-4]
str r3, [r1, #-8]
@ do the system call
@ get flags
mov r0, r2
@ new sp is already in r1
#if __ARM_EABI__
stmfd sp!, {r4, r7}
ldr r7, =__NR_clone
swi #0
#else
swi #__NR_clone
#endif
movs r0, r0
#if __ARM_EABI__
ldmnefd sp!, {r4, r7}
#endif
blt __error
bxne lr
@ pick the function arg and call address off the stack and jump
@ to the C __thread_entry function which does some setup and then
@ calls the thread's start function
ldr r0, [sp, #-4]
ldr r1, [sp, #-8]
mov r2, sp @ __thread_entry needs the TLS pointer
b __thread_entry
__error:
mov r0, #-1
bx lr
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