46 lines
718 B
ArmAsm
46 lines
718 B
ArmAsm
#
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# exit and _exit get included in *every* program, and gcc generates
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# horrible code for them. Yes, this only saves a few bytes, but
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# it does it in every program.
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#
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#include <asm/unistd.h>
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.data
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.align 4
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.globl __exit_handler
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.type __exit_handler,@object
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__exit_handler:
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.long _exit
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.size __exit_handler,4
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.text
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.align 4
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.globl exit
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.type exit,@function
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exit:
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jmp *(__exit_handler)
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.size exit,.-exit
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/* No need to save any registers... we're exiting! */
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.text
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.align 4
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.globl _exit
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.type _exit,@function
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_exit:
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#ifdef REGPARM
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movl %eax,%ebx
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#else
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popl %ebx
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popl %ebx
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#endif
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#if __NR_exit == 1
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xorl %eax,%eax
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incl %eax
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#else
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movl $__NR_exit,%eax
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#endif
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int $0x80
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hlt
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.size _exit,.-exit
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