fpc/rtl/linux/powerpc64/si_dll.inc
Michael VAN CANNEYT 4c2b54ee0d * Char -> AnsiChar
2023-07-14 17:26:09 +02:00

707 lines
14 KiB
PHP

{*
* This file is part of the Free Pascal run time library.
* Portions copyright (c) 2005 by Thomas Schatzl,
* member of the Free Pascal development team.
*
* Startup code for normal programs, PowerPC64 version.
*
* See the file COPYING.FPC, included in this distribution,
* for details about the copyright.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*}
{$goto on}
{$ifndef _CALL_ELF or (_CALL_ELF = 1)}
{*
* "ptrgl" glue code for calls via pointer. This function
* sequence loads the data from the function descriptor
* referenced by R11 into the CTR register (function address),
* R2 (GOT/TOC pointer), and R11 (the outer frame pointer).
*
* On entry, R11 must be set to point to the function descriptor.
*
* See also the 64-bit PowerPC ABI specification for more
* information, chapter 3.5.11 (in v1.7).
*}
procedure ptrgl; cdecl; public; assembler; nostackframe;
asm
ld r0, 0(r11)
std r2, 40(r1)
mtctr r0
ld r2, 8(r11)
ld r11, 16(r11)
bctr
end;
{$endif _CALL_ELF}
{*
* Function prolog/epilog helpers, which are part of the 64-bit
* PowerPC ABI.
*
* See also the 64-bit PowerPC ABI specification for more
* information, chapter 3.5.5, "Register saving and restoring
* function" (in v1.7).
*}
{* Each _savegpr0_N routine saves the general registers from rN to r31,
* inclusive. When the routine is called, r1 must point to the start
* of the general register save area. R0 must contain the old LR on
* entry.
*}
label
_savegpr0_15,
_savegpr0_16,
_savegpr0_17,
_savegpr0_18,
_savegpr0_19,
_savegpr0_20,
_savegpr0_21,
_savegpr0_22,
_savegpr0_23,
_savegpr0_24,
_savegpr0_25,
_savegpr0_26,
_savegpr0_27,
_savegpr0_28,
_savegpr0_29,
_savegpr0_30,
_savegpr0_31;
procedure _savegpr0_14; cdecl; public; assembler; nostackframe;
asm
.globl _savegpr0_15
.globl _savegpr0_16
.globl _savegpr0_17
.globl _savegpr0_18
.globl _savegpr0_19
.globl _savegpr0_20
.globl _savegpr0_21
.globl _savegpr0_22
.globl _savegpr0_23
.globl _savegpr0_24
.globl _savegpr0_25
.globl _savegpr0_26
.globl _savegpr0_27
.globl _savegpr0_28
.globl _savegpr0_29
.globl _savegpr0_30
.globl _savegpr0_31
std r14,-144(r1)
_savegpr0_15:
std r15,-136(r1)
_savegpr0_16:
std r16,-128(r1)
_savegpr0_17:
std r17,-120(r1)
_savegpr0_18:
std r18,-112(r1)
_savegpr0_19:
std r19,-104(r1)
_savegpr0_20:
std r20,-96(r1)
_savegpr0_21:
std r21,-88(r1)
_savegpr0_22:
std r22,-80(r1)
_savegpr0_23:
std r23,-72(r1)
_savegpr0_24:
std r24,-64(r1)
_savegpr0_25:
std r25,-56(r1)
_savegpr0_26:
std r26,-48(r1)
_savegpr0_27:
std r27,-40(r1)
_savegpr0_28:
std r28,-32(r1)
_savegpr0_29:
std r29,-24(r1)
_savegpr0_30:
std r30,-16(r1)
_savegpr0_31:
std r31,-8(r1)
std r0, 16(r1)
blr
end;
label
_restgpr0_15,
_restgpr0_16,
_restgpr0_17,
_restgpr0_18,
_restgpr0_19,
_restgpr0_20,
_restgpr0_21,
_restgpr0_22,
_restgpr0_23,
_restgpr0_24,
_restgpr0_25,
_restgpr0_26,
_restgpr0_27,
_restgpr0_28,
_restgpr0_29,
_restgpr0_31;
{* Each _restgpr0_N routine restores the general registers from rN to r31,
* inclusive. When the routine is called, r1 must point to the start
* of the general register save area.
*}
procedure _restgpr0_14; cdecl; public; assembler; nostackframe;
asm
.globl _restgpr0_15
.globl _restgpr0_16
.globl _restgpr0_17
.globl _restgpr0_18
.globl _restgpr0_19
.globl _restgpr0_20
.globl _restgpr0_21
.globl _restgpr0_22
.globl _restgpr0_23
.globl _restgpr0_24
.globl _restgpr0_25
.globl _restgpr0_26
.globl _restgpr0_27
.globl _restgpr0_28
.globl _restgpr0_29
ld r14,-144(r1)
_restgpr0_15:
ld r15,-136(r1)
_restgpr0_16:
ld r16,-128(r1)
_restgpr0_17:
ld r17,-120(r1)
_restgpr0_18:
ld r18,-112(r1)
_restgpr0_19:
ld r19,-104(r1)
_restgpr0_20:
ld r20,-96(r1)
_restgpr0_21:
ld r21,-88(r1)
_restgpr0_22:
ld r22,-80(r1)
_restgpr0_23:
ld r23,-72(r1)
_restgpr0_24:
ld r24,-64(r1)
_restgpr0_25:
ld r25,-56(r1)
_restgpr0_26:
ld r26,-48(r1)
_restgpr0_27:
ld r27,-40(r1)
_restgpr0_28:
ld r28,-32(r1)
_restgpr0_29:
ld r0, 16(r1)
ld r29,-24(r1)
mtlr r0
ld r30,-16(r1)
ld r31,-8(r1)
blr
end;
procedure _restgpr0_30; cdecl; public; assembler; nostackframe;
asm
ld r30,-16(r1)
_restgpr0_31:
ld r0, 16(r1)
ld r31,-8(r1)
mtlr 0
blr
end;
{* Each _savegpr1_N routine saves the general registers from rN to r31,
* inclusive. When the routine is called, r12
* must point to the start of the general register save area.
*}
label
_savegpr1_15,
_savegpr1_16,
_savegpr1_17,
_savegpr1_18,
_savegpr1_19,
_savegpr1_20,
_savegpr1_21,
_savegpr1_22,
_savegpr1_23,
_savegpr1_24,
_savegpr1_25,
_savegpr1_26,
_savegpr1_27,
_savegpr1_28,
_savegpr1_29,
_savegpr1_30,
_savegpr1_31;
procedure _savegpr1_14; cdecl; public; assembler; nostackframe;
asm
.globl _savegpr1_15
.globl _savegpr1_16
.globl _savegpr1_17
.globl _savegpr1_18
.globl _savegpr1_19
.globl _savegpr1_20
.globl _savegpr1_21
.globl _savegpr1_22
.globl _savegpr1_23
.globl _savegpr1_24
.globl _savegpr1_25
.globl _savegpr1_26
.globl _savegpr1_27
.globl _savegpr1_28
.globl _savegpr1_29
.globl _savegpr1_30
.globl _savegpr1_31
std r14,-144(r12)
_savegpr1_15:
std r15,-136(r12)
_savegpr1_16:
std r16,-128(r12)
_savegpr1_17:
std r17,-120(r12)
_savegpr1_18:
std r18,-112(r12)
_savegpr1_19:
std r19,-104(r12)
_savegpr1_20:
std r20,-96(r12)
_savegpr1_21:
std r21,-88(r12)
_savegpr1_22:
std r22,-80(r12)
_savegpr1_23:
std r23,-72(r12)
_savegpr1_24:
std r24,-64(r12)
_savegpr1_25:
std r25,-56(r12)
_savegpr1_26:
std r26,-48(r12)
_savegpr1_27:
std r27,-40(r12)
_savegpr1_28:
std r28,-32(r12)
_savegpr1_29:
std r29,-24(r12)
_savegpr1_30:
std r30,-16(r12)
_savegpr1_31:
std r31,-8(r12)
blr
end;
{* The _restgpr1_N routines restore the general registers from rN to r31.
* When the routine is called, r12 must point to the start of the general
* register save area.
*}
label
_restgpr1_15,
_restgpr1_16,
_restgpr1_17,
_restgpr1_18,
_restgpr1_19,
_restgpr1_20,
_restgpr1_21,
_restgpr1_22,
_restgpr1_23,
_restgpr1_24,
_restgpr1_25,
_restgpr1_26,
_restgpr1_27,
_restgpr1_28,
_restgpr1_29,
_restgpr1_30,
_restgpr1_31;
procedure _restgpr1_14; cdecl; public; assembler; nostackframe;
asm
.globl _restgpr1_15
.globl _restgpr1_16
.globl _restgpr1_17
.globl _restgpr1_18
.globl _restgpr1_19
.globl _restgpr1_20
.globl _restgpr1_21
.globl _restgpr1_22
.globl _restgpr1_23
.globl _restgpr1_24
.globl _restgpr1_25
.globl _restgpr1_26
.globl _restgpr1_27
.globl _restgpr1_28
.globl _restgpr1_29
.globl _restgpr1_30
.globl _restgpr1_31
ld r14,-144(r12)
_restgpr1_15:
ld r15,-136(r12)
_restgpr1_16:
ld r16,-128(r12)
_restgpr1_17:
ld r17,-120(r12)
_restgpr1_18:
ld r18,-112(r12)
_restgpr1_19:
ld r19,-104(r12)
_restgpr1_20:
ld r20,-96(r12)
_restgpr1_21:
ld r21,-88(r12)
_restgpr1_22:
ld r22,-80(r12)
_restgpr1_23:
ld r23,-72(r12)
_restgpr1_24:
ld r24,-64(r12)
_restgpr1_25:
ld r25,-56(r12)
_restgpr1_26:
ld r26,-48(r12)
_restgpr1_27:
ld r27,-40(r12)
_restgpr1_28:
ld r28,-32(r12)
_restgpr1_29:
ld r29,-24(r12)
_restgpr1_30:
ld r30,-16(r12)
_restgpr1_31:
ld r31,-8(r12)
blr
end;
{* Each _savefpr_M routine saves the floating point registers from fM to f31,
* inclusive. When the routine is called, r1 must point to the start of the
* floating point register save area, and r0 must contain the value of LR on
* function entry.
*}
label
_savefpr_15,
_savefpr_16,
_savefpr_17,
_savefpr_18,
_savefpr_19,
_savefpr_20,
_savefpr_21,
_savefpr_22,
_savefpr_23,
_savefpr_24,
_savefpr_25,
_savefpr_26,
_savefpr_27,
_savefpr_28,
_savefpr_29,
_savefpr_30,
_savefpr_31;
procedure _savefpr_14; cdecl; public; assembler; nostackframe;
asm
.globl _savefpr_15
.globl _savefpr_16
.globl _savefpr_17
.globl _savefpr_18
.globl _savefpr_19
.globl _savefpr_20
.globl _savefpr_21
.globl _savefpr_22
.globl _savefpr_23
.globl _savefpr_24
.globl _savefpr_25
.globl _savefpr_26
.globl _savefpr_27
.globl _savefpr_28
.globl _savefpr_29
.globl _savefpr_30
.globl _savefpr_31
stfd r14,-144(r1)
_savefpr_15:
stfd r15,-136(r1)
_savefpr_16:
stfd r16,-128(r1)
_savefpr_17:
stfd r17,-120(r1)
_savefpr_18:
stfd r18,-112(r1)
_savefpr_19:
stfd r19,-104(r1)
_savefpr_20:
stfd r20,-96(r1)
_savefpr_21:
stfd r21,-88(r1)
_savefpr_22:
stfd r22,-80(r1)
_savefpr_23:
stfd r23,-72(r1)
_savefpr_24:
stfd r24,-64(r1)
_savefpr_25:
stfd r25,-56(r1)
_savefpr_26:
stfd r26,-48(r1)
_savefpr_27:
stfd r27,-40(r1)
_savefpr_28:
stfd r28,-32(r1)
_savefpr_29:
stfd r29,-24(r1)
_savefpr_30:
stfd r30,-16(r1)
_savefpr_31:
stfd r31,-8(r1)
std r0, 16(r1)
blr
end;
{* The _restfpr_M routines restore the floating point registers from fM to f31.
* When the routine is called, r1 must point to the start of the floating point
* register save area.
*}
label
_restfpr_15,
_restfpr_16,
_restfpr_17,
_restfpr_18,
_restfpr_19,
_restfpr_20,
_restfpr_21,
_restfpr_22,
_restfpr_23,
_restfpr_24,
_restfpr_25,
_restfpr_26,
_restfpr_27,
_restfpr_28,
_restfpr_29,
_restfpr_31;
procedure _restfpr_14; cdecl; public; assembler; nostackframe;
asm
.globl _restfpr_15
.globl _restfpr_16
.globl _restfpr_17
.globl _restfpr_18
.globl _restfpr_19
.globl _restfpr_20
.globl _restfpr_21
.globl _restfpr_22
.globl _restfpr_23
.globl _restfpr_24
.globl _restfpr_25
.globl _restfpr_26
.globl _restfpr_27
.globl _restfpr_28
.globl _restfpr_29
lfd r14,-144(r1)
_restfpr_15:
lfd r15,-136(r1)
_restfpr_16:
lfd r16,-128(r1)
_restfpr_17:
lfd r17,-120(r1)
_restfpr_18:
lfd r18,-112(r1)
_restfpr_19:
lfd r19,-104(r1)
_restfpr_20:
lfd r20,-96(r1)
_restfpr_21:
lfd r21,-88(r1)
_restfpr_22:
lfd r22,-80(r1)
_restfpr_23:
lfd r23,-72(r1)
_restfpr_24:
lfd r24,-64(r1)
_restfpr_25:
lfd r25,-56(r1)
_restfpr_26:
lfd r26,-48(r1)
_restfpr_27:
lfd r27,-40(r1)
_restfpr_28:
lfd r28,-32(r1)
_restfpr_29:
ld r0, 16(r1)
lfd r29,-24(r1)
mtlr r0
lfd r30,-16(r1)
lfd r31,-8(r1)
blr
end;
procedure _restfpr_30; cdecl; public; assembler; nostackframe;
asm
.globl _restfpr_31
lfd r30,-16(r1)
_restfpr_31:
ld r0, 16(r1)
lfd r31,-8(r1)
mtlr r0
blr
end;
{* Each _savevr_M routine saves the vector registers from vM to v31, inclusive.
* When the routine is called, r0 must point to the word just beyound the end
* of the vector register save area. On return the value of r0 is unchanged
* while r12 may be modified.
*}
{* commented out for now, unused
_savevr_20: addi r12,r0,-192
stvx v20,r12,r0
_savevr_21: addi r12,r0,-176
stvx v21,r12,r0
_savevr_22: addi r12,r0,-160
stvx v22,r12,r0
_savevr_23: addi r12,r0,-144
stvx v23,r12,r0
_savevr_24: addi r12,r0,-128
stvx v24,r12,r0
_savevr_25: addi r12,r0,-112
stvx v25,r12,r0
_savevr_26: addi r12,r0,-96
stvx v26,r12,r0
_savevr_27: addi r12,r0,-80
stvx v27,r12,r0
_savevr_28: addi r12,r0,-64
stvx v28,r12,r0
_savevr_29: addi r12,r0,-48
stvx v29,r12,r0
_savevr_30: addi r12,r0,-32
stvx v30,r12,r0
_savevr_31: addi r12,r0,-16
stvx v31,r12,r0
blr
*}
{* The _restvr_M routines restore the vector registers from vM to v31. When the
* routine is called, r0 must point to the word just beyound the end of the
* vector register save area. On return the value of r0 is unchanged while r12
* may be modified.
*}
{* commented out for now, unused
_restvr_20: addi r12,r0,-192
lvx v20,r12,r0
_restvr_21: addi r12,r0,-176
lvx v21,r12,r0
_restvr_22: addi r12,r0,-160
lvx v22,r12,r0
_restvr_23: addi r12,r0,-144
lvx v23,r12,r0
_restvr_24: addi r12,r0,-128
lvx v24,r12,r0
_restvr_25: addi r12,r0,-112
lvx v25,r12,r0
_restvr_26: addi r12,r0,-96
lvx v26,r12,r0
_restvr_27: addi r12,r0,-80
lvx v27,r12,r0
_restvr_28: addi r12,r0,-64
lvx v28,r12,r0
_restvr_29: addi r12,r0,-48
lvx v29,r12,r0
_restvr_30: addi r12,r0,-32
lvx v30,r12,r0
_restvr_31: addi r12,r0,-16
lvx v31,r12,r0
blr
*}
{******************************************************************************
Process start/halt
******************************************************************************}
var
TOCSTART: pointer; external name '.TOC.';
procedure save_argc_argv_envp_stkptr_fpcret(argc: longint; argv, envp: PPAnsiChar; stkptr: pointer);
begin
operatingsystem_parameter_argc:=argc;
operatingsystem_parameter_argv:=argv;
operatingsystem_parameter_envp:=envp;
initialstkptr:=stkptr;
end;
{*
* Main program entry point label (function), called by the loader
*
* The document "64-bit PowerPC ELF Application Binary Interface Supplement 1.9"
* pg. 24f specifies the register contents.
*}
procedure _FPC_shared_lib_start(argc: longint; argv, envp: PPAnsiChar); cdecl; public name 'FPC_SHARED_LIB_START'; public name '_start'; assembler; nostackframe;
asm
{$if defined(_CALL_ELF) and (_CALL_ELF = 2)}
.L1:
addis r2,r12,(TOCSTART-.L1)@ha
addi r2,r2,(TOCSTART-.L1)@l
.localentry _FPC_shared_lib_start, . - _FPC_shared_lib_start
{$endif}
mflr r0
std r0, 16(r1) { save LR }
stdu r1, -144(r1) { save back chain, make frame }
mr r6, r1
bl save_argc_argv_envp_stkptr_fpcret
nop
{* call library initialization *}
bl PASCALMAIN
nop
{ return to the caller }
addi r1,r1,144 { restore stack }
ld r0,16(r1) { prepare for method return }
mtlr r0
blr
end;
label
__data_start,
data_start;
{* this routine is only called when the halt() routine of the RTL embedded in
the shared library is called *}
procedure _haltproc; cdecl; public;
var
localres: longint;
begin
localres:=ExitCode;
asm
lwz r3,localres
li r0, syscall_nr_exit_group
sc
lwz r3,localres
li r0,syscall_nr_exit
sc
{ we should not reach here. Crash horribly }
{ trap }
.long 0xffe00008
{ Define a symbol for the first piece of initialized data. }
.section ".data"
.globl __data_start
__data_start:
data_start:
.text
end;
end;