mirror of
https://gitlab.com/freepascal.org/fpc/source.git
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94 lines
2.7 KiB
ActionScript
94 lines
2.7 KiB
ActionScript
/*
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$Id$
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*/
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.section ".text"
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.align 4
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.global _start
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.type _start,#function
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_start:
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/* Terminate the stack frame, and reserve space for functions to
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drop their arguments. */
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mov %g0, %fp
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sub %sp, 6*4, %sp
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/* Extract the arguments and environment as encoded on the stack. The
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argument info starts after one register window (16 words) past the SP. */
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ld [%sp+22*4], %o2
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sethi %hi(operatingsystem_parameter_argc),%o1
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or %o1,%lo(operatingsystem_parameter_argc),%o1
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st %o2, [%o1]
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add %sp, 23*4, %o0
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sethi %hi(operatingsystem_parameter_argv),%o1
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or %o1,%lo(operatingsystem_parameter_argv),%o1
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st %o0, [%o1]
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/* envp=(argc+1)*4+argv */
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inc %o2
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sll %o2, 2, %o2
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add %o2, %o0, %o2
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sethi %hi(operatingsystem_parameter_envp),%o1
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or %o1,%lo(operatingsystem_parameter_envp),%o1
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st %o2, [%o1]
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/* reload the addresses for C startup code */
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ld [%sp+22*4], %o1
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add %sp, 23*4, %o2
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/* Load the addresses of the user entry points. */
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sethi %hi(PASCALMAIN), %o0
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sethi %hi(_init), %o3
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sethi %hi(_fini), %o4
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or %o0, %lo(PASCALMAIN), %o0
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or %o3, %lo(_init), %o3
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or %o4, %lo(_fini), %o4
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/* When starting a binary via the dynamic linker, %g1 contains the
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address of the shared library termination function, which will be
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registered with atexit(). If we are statically linked, this will
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be NULL. */
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mov %g1, %o5
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/* Let libc do the rest of the initialization, and call main. */
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call __libc_start_main
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nop
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/* Die very horribly if exit returns. */
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unimp
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.size _start, .-_start
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.globl _haltproc
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.type _haltproc,@function
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_haltproc:
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mov 1, %g1 /* "exit" system call */
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sethi %hi(operatingsystem_result),%o0
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or %o0,%lo(operatingsystem_result),%o0
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ldsh [%o0], %o0 /* give exit status to parent process*/
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ta 0x10 /* dot the system call */
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nop /* delay slot */
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/* Die very horribly if exit returns. */
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unimp
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.data
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.comm ___fpc_brk_addr,4 /* heap management */
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.comm operatingsystem_parameter_envp,4
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.comm operatingsystem_parameter_argc,4
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.comm operatingsystem_parameter_argv,4
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/*
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$Log$
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Revision 1.5 2004-09-25 18:43:45 florian
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* fixed symbol names
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Revision 1.4 2004/09/25 12:25:32 florian
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* first implementation
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Revision 1.3 2003/05/23 21:09:14 florian
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+ dummy implementation readded to satisfy makefile
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*/
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