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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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