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- /*
- This file is part of the Free Pascal run time library.
- Copyright (c) 1999-2009 by Michael Van Canneyt and David Zhang
- Startup code for elf32-mipsel
- See the file COPYING.FPC, included in this distribution,
- for details about the copyright.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- */
- .section ".text"
- .align 4
- .global _dynamic_start
- .type _dynamic_start,#function
- _dynamic_start:
- /* TODO: need to set __dl_fini here */
- b _start
- .align 4
- .global _start
- .type _start,#function
- _start:
- 0: 03a0f021 move s8,sp
- 4: 2401fff8 li at,-8
- 8: 03a1e824 and sp,sp,at
- c: 27bdffe0 addiu sp,sp,-32
- 10: 3c17003d lui s7,0x3d
- 14: 26f70900 addiu s7,s7,2304
- 18: 2401fff8 li at,-8
- 1c: 02e1b824 and s7,s7,at
- 20: 26f7ffe0 addiu s7,s7,-32
- 24: 8fc40000 lw a0,0(s8)
- 28: 3c050000 lui a1,0x0
- 2c: aca40000 sw a0,0(a1)
- 30: 27c50004 addiu a1,s8,4
- 34: 3c060000 lui a2,0x0
- 38: acc50000 sw a1,0(a2)
- 3c: 24860001 addiu a2,a0,1
- 40: 00063080 sll a2,a2,0x2
- 44: 00c53021 addu a2,a2,a1
- 48: 3c070000 lui a3,0x0
- 4c: 0c000000 jal 0 <__start>
- 50: ace60000 sw a2,0(a3)
- 54: 00000000 nop
- /* Terminate the stack frame, and reserve space for functions to
- drop their arguments. */
- mov %g0, %fp
- sub %sp, 6*4, %sp
- /* Extract the arguments and environment as encoded on the stack. The
- argument info starts after one register window (16 words) past the SP. */
- ld [%sp+22*4], %o2
- sethi %hi(operatingsystem_parameter_argc),%o1
- or %o1,%lo(operatingsystem_parameter_argc),%o1
- st %o2, [%o1]
- add %sp, 23*4, %o0
- sethi %hi(operatingsystem_parameter_argv),%o1
- or %o1,%lo(operatingsystem_parameter_argv),%o1
- st %o0, [%o1]
- /* envp=(argc+1)*4+argv */
- inc %o2
- sll %o2, 2, %o2
- add %o2, %o0, %o2
- sethi %hi(operatingsystem_parameter_envp),%o1
- or %o1,%lo(operatingsystem_parameter_envp),%o1
- st %o2, [%o1]
- /* Save initial stackpointer */
- sethi %hi(__stkptr),%o1
- or %o1,%lo(__stkptr),%o1
- st %sp, [%o1]
- /* Call the user program entry point. */
- call PASCALMAIN
- nop
- .globl _haltproc
- .type _haltproc,@function
- _haltproc:
- /* TODO: need to check whether __dl_fini is non-zero and call the function pointer in case */
- li v0,4001
- lui a0,0x0
- lw a0,0(a0)
- syscall
- b _haltproc
- nop
- .size _start, .-_start
- .comm __stkptr,4
- .comm __dl_fini,4
- .comm operatingsystem_parameter_envp,4
- .comm operatingsystem_parameter_argc,4
- .comm operatingsystem_parameter_argv,4
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