39 lines
713 B
ArmAsm
39 lines
713 B
ArmAsm
#
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# socketcall.S
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#
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# On i386, the main (only?) user of socketcall(2), the memory array
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# socketcall(2) needs is conveniently already assembled for us on
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# the stack. Capitalize on that to make a common socketcall stub.
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#
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#include <asm/unistd.h>
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#ifdef __i386__
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.text
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.align 4
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.globl __socketcall_common
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.type __socketcall_common, @function
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__socketcall_common:
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pushl %ebx
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movzbl %al,%ebx # The socketcall number is passed in in %al
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leal 8(%esp),%ecx # Argument pointer
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movl $__NR_socketcall, %eax
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int $0x80
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cmpl $-125,%eax # Error return?
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popl %ebx
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jb 1f
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neg %eax
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movl %eax,errno
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xorl %eax,%eax
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decl %eax # Return = -1
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1:
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ret
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.size __socketcall_common,.-__socketcall_common
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#endif
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