47e55476be
* arm/Makefile.in: Add Linux syscall interface.
* arm/linux-crt0.S: New file.
* arm/linux-syscall.h: New file.
* arm/linux-syscalls0.S: New file.
* arm/linux-syscalls1.c: New file.
47 lines
850 B
ArmAsm
47 lines
850 B
ArmAsm
/** Linux startup code for the ARM processor.
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* Written by Shaun Jackman <sjackman@gmail.com>.
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* Copyright 2006 Pathway Connectivity
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*
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* Permission to use, copy, modify, and distribute this software
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* is freely granted, provided that this notice is preserved.
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*/
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.global _start
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.type _start, %function
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_start:
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#if __thumb__
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/* Switch to Thumb mode. */
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adr r0, _start_thumb+1
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bx r0
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.size _start, .-_start
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.global _start_thumb
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.thumb_func
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_start_thumb:
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#endif
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#if 0
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/* Clear the BSS. This task is normally handled by the kernel. */
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ldr r0, =__bss_start
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mov r1, #0
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ldr r2, =_end
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sub r2, r2, r0
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bl memset
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#endif
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pop {r0} @ argc
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mov r1, sp @ argv
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lsl r2, r0, #2
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add r2, r1
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add r2, #4 @ envp
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ldr r3, =environ
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str r2, [r3]
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bl main
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bl exit
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b .
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#if __thumb__
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.size _start_thumb, .-_start_thumb
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#else
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.size _start, .-_start
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#endif
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