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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [libgloss/] [bfin/] [crt0.S] - Blame information for rev 207

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Line No. Rev Author Line
1 207 jeremybenn
/*
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 * crt0.S for the Blackfin processor
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 *
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 * Copyright (C) 2006 Analog Devices, Inc.
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 *
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 * The authors hereby grant permission to use, copy, modify, distribute,
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 * and license this software and its documentation for any purpose, provided
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 * that existing copyright notices are retained in all copies and that this
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 * notice is included verbatim in any distributions. No written agreement,
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 * license, or royalty fee is required for any of the authorized uses.
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 * Modifications to this software may be copyrighted by their authors
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 * and need not follow the licensing terms described here, provided that
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 * the new terms are clearly indicated on the first page of each file where
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 * they apply.
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 */
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        .text
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        .align  2
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        .global __start
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__start:
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        /* Start by setting up a stack */
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        link 0xc;
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        /* Zero the memory in the .bss section.  */
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        p0.l = __edata;
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        p0.h = __edata;
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        p1.l = __end;
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        p1.h = __end;
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        p1 -= p0;
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        r0 = 0;
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        lsetup (L$L$clear_bss, L$L$clear_bss) lc0 = p1;
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L$L$clear_bss:
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        B [p0++] = r0;
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#ifdef __BFIN_FDPIC__
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        /* Set up GOT pointer.  */
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        P0.L = __ROFIXUP_END__;
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        P0.H = __ROFIXUP_END__;
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        P4 = [P0 - 4];
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#endif
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        /* Need to set up standard file handles */
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        /*  Parse string at r1 */
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        p0.l = __init;
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        p0.h = __init;
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        P3 = P4;
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        call    (p0)
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        p0.l = _atexit;
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        p0.h = _atexit;
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#ifdef __BFIN_FDPIC__
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        r0 = [P4 + __fini@FUNCDESC_GOT17M4]  ;
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        P3 = P4;
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#else
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        r0.l = __fini;
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        r0.h = __fini;
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#endif
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        call    (p0)
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        p0.l = ___setup_argv_and_call_main;
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        p0.h = ___setup_argv_and_call_main;
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        P3 = P4;
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        call    (p0)
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        p0.l = _exit;
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        p0.h = _exit;
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        P3 = P4;
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        jump    (p0)            /* Should not return.  */
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        nop;

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