f4680b57ed
Change-Id: I63c217b73203b44b1a2e74950b58f2ec12989cab Author: H.J. Lu <hjl.tools@gmail.com> Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
54 lines
1.2 KiB
ArmAsm
54 lines
1.2 KiB
ArmAsm
#include <sys/linux-syscalls.h>
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.text
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/*
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* int __pthread_clone(int (*fn)(void*), void *tls, int flags,
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* void *arg);
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*/
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.globl __pthread_clone
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.type __pthread_clone, @function
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.align 4
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__pthread_clone:
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pushl %ebx
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pushl %ecx
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movl 16(%esp), %ecx
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movl 20(%esp), %ebx
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# insert arguments onto the child stack
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movl 12(%esp), %eax
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movl %eax, -12(%ecx)
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movl 24(%esp), %eax
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movl %eax, -8(%ecx)
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movl %ecx, -4(%ecx)
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movl $__NR_clone, %eax
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int $0x80
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test %eax, %eax
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jns 1f
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# an error occured, set errno and return -1
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negl %eax
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call __set_errno
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orl $-1, %eax
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jmp 2f
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1:
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jnz 2f
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# we're in the child thread now, call __thread_entry
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# with the appropriate arguments on the child stack
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# we already placed most of them
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subl $16, %esp
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jmp __thread_entry
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hlt
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2:
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popl %ecx
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popl %ebx
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ret
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/* XXX: TODO: Add __bionic_clone here
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* See bionic/bionic_clone.c and arch-arm/bionic/clone.S
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* for more details...
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*/
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