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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
- .ifdef PIC
- /* Set %l7 to _GLOBAL_OFFSET_TABLE value */
- sethi %hi(_GLOBAL_OFFSET_TABLE_-8),%l7
- or %l7,%lo(_GLOBAL_OFFSET_TABLE_-4),%l7
- call FPC_GETGOT
- nop
- .endif
- /* 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
- .ifdef PIC
- ld [%o1+%l7],%o1
- .endif
- st %o2, [%o1]
- add %sp, 23*4, %o0
- sethi %hi(operatingsystem_parameter_argv),%o1
- or %o1,%lo(operatingsystem_parameter_argv),%o1
- .ifdef PIC
- ld [%o1+%l7],%o1
- .endif
- 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
- .ifdef PIC
- ld [%o1+%l7],%o1
- .endif
- st %o2, [%o1]
- /* Save initial stackpointer */
- sethi %hi(__stkptr),%o1
- or %o1,%lo(__stkptr),%o1
- .ifdef PIC
- ld [%o1+%l7],%o1
- .endif
- 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(PASCALMAIN), %o0
- sethi %hi(_init), %o3
- sethi %hi(_fini), %o4
- or %o0, %lo(PASCALMAIN), %o0
- .ifdef PIC
- ld [%o0+%l7],%o0
- .endif
- or %o3, %lo(_init), %o3
- .ifdef PIC
- ld [%o3+%l7],%o3
- .endif
- or %o4, %lo(_fini), %o4
- .ifdef PIC
- ld [%o4+%l7],%o4
- .endif
- /* 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
- .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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