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.section ".text"
.align 4
.global _start
.type _start,#function
_start:
/* 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]
/* reload the addresses for C startup code */
ld [%sp+22*4], %o1
add %sp, 23*4, %o2
/* Load the addresses of the user entry points. */
sethi %hi(main_stub), %o0
sethi %hi(_init), %o3
sethi %hi(_fini), %o4
or %o0, %lo(main_stub), %o0
or %o3, %lo(_init), %o3
or %o4, %lo(_fini), %o4
/* When starting a binary via the dynamic linker, %g1 contains the
address of the shared library termination function, which will be
registered with atexit(). If we are statically linked, this will
be NULL. */
mov %g1, %o5
/* Let libc do the rest of the initialization, and call main. */
call __libc_start_main
nop
/* Die very horribly if exit returns. */
unimp
.size _start, .-_start
main_stub:
/* Initialize gmon */
sethi %hi(_start), %o0
sethi %hi(_etext), %o1
or %o0, %lo(_start), %o0
or %o1, %lo(_etext), %o1
call monstartup
nop
sethi %hi(_mcleanup), %o0
or %o0, %lo(_mcleanup), %o0
call atexit
nop
/* start the program */
call PASCALMAIN
nop
ba _haltproc
nop
.globl _haltproc
.type _haltproc,@function
_haltproc:
mov 188, %g1 /* "exit" system call */
ta 0x10 /* dot the system call */
nop /* delay slot */
/* Die very horribly if exit returns. */
unimp
.data
.comm __stkptr,4
.comm operatingsystem_parameter_envp,4
.comm operatingsystem_parameter_argc,4
.comm operatingsystem_parameter_argv,4
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