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/* When we enter this piece of code, the program stack looks like this:
        argc            argument counter (integer)
        argv[0]         program name (pointer)
        argv[1...N]     program args (pointers)
        argv[argc-1]    end of args (integer)
        NULL
        env[0...N]      environment variables (pointers)
        NULL
*/

#include <features.h>
#include <sys/regdef.h>

.text
        .global __start
        .type   __start,%function
        .type   __uClibc_start_main,%function
        .weak   _init
        .weak   _fini
        .type   __uClibc_start_main,%function
/* Stick in a dummy reference to main(), so that if an application
 * is linking when the main() function is in a static library (.a)
 * we can be sure that main() actually gets linked in */
        .type   main,%function

__start:              
#ifdef __PIC__
        .set noreorder
        bltzal zero,0f
        nop
0:      .cpload $31
        .set reorder
#endif

        move $31, zero      /* no return, but since the jal kills $31, skip this */
        lw   a0, 0($29)     /* argc */
        addu a1, $29, 4     /* get to start of argv */
        addu a2, a0, 1      /* argv[0] program name (ordinal->cardinal) */
        sll  a2, a2, 2      /* multiple by 4 */
        add  a2, a2, a1     /* a2 now points to start of envp */
        la   a3, _init      /* a3 is address of _init */
        addiu sp, sp, -24   /* 16 + 4 rounded up to multiple of 8 */
                            /* multiple of 8 for longlong/double support */
        la   v0, _fini
        sw   v0, 16(sp)     /* stack has 5th argument, address of _fini */
        
        /* Ok, now run uClibc's main() -- shouldn't return */
        jal  __uClibc_start_main

        addiu sp, sp, 24    /* undo stack argument */

        /* Crash if somehow `exit' returns anyways.  */
hlt:
        b   hlt

        .section ".data"
        .globl __data_start
__data_start: