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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
- __start:
- #ifdef __PIC__
- .set noreorder
- bltzal zero,0f
- nop
- 0: .cpload $31
- .set reorder
- #endif
- move $31, zero
- lw a0, 0($29) /* argc */
- addu a1, $29, 4 /* argv */
- addu a2, a0, 1 /* load envp */
- sll a2, a2, 2
- add a2, a2, a1
- /* Store the address of _init in a3 as an argument to __uClibc_start_main() */
- la a3, _init
- /* Push _fini onto the stack as the final argument to __uClibc_start_main()
- I don't think I am doing this properly but it at least compiles...
- */
- la t0, _fini
- sw t0,16(sp)
-
- /* Ok, now run uClibc's main() -- shouldn't return */
- jal __uClibc_start_main
- /* Crash if somehow `exit' returns anyways. */
- hlt:
- b hlt
- /* 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 */
- L_dummy_main_reference:
- .long main
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