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extended_process
fpc/compiler/systems/t_nds.pas
florian be401422fd * more warnings after last commit fixed
2022-10-24 22:52:52 +02:00

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{
This unit implements support import,export,link routines
for the (arm) Nintendo DS target
Copyright (c) 2001-2002 by Peter Vreman
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit t_nds;
{$i fpcdefs.inc}
interface
implementation
uses
aasmbase,
SysUtils,
cutils,cfileutl,cclasses,
globtype,globals,systems,verbose,cscript,fmodule,i_nds,link;
type
TlinkerNDS=class(texternallinker)
private
Function WriteResponseFile: Boolean;
public
constructor Create; override;
procedure SetDefaultInfo; override;
function MakeExecutable:boolean; override;
end;
{*****************************************************************************
TLINKERNDS
*****************************************************************************}
Constructor TLinkerNDS.Create;
begin
Inherited Create;
SharedLibFiles.doubles:=true;
StaticLibFiles.doubles:=true;
// set arm9 as default apptype
if (apptype <> app_arm9) and (apptype <> app_arm7) then
apptype:=app_arm9;
end;
procedure TLinkerNDS.SetDefaultInfo;
begin
with Info do
begin
ExeCmd[1]:='ld -g $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -L. -o $EXE -T $RES';
end;
end;
Function TLinkerNDS.WriteResponseFile: Boolean;
Var
linkres : TLinkRes;
i : longint;
HPath : TCmdStrListItem;
s,s1,s2 : TCmdStr;
prtobj,
cprtobj : string[80];
linklibc,
linklibgcc : boolean;
found1,
found2 : boolean;
begin
s:='';
WriteResponseFile:=False;
linklibc:=(SharedLibFiles.Find('c')<>nil);
linklibgcc:=(SharedLibFiles.Find('gcc')<>nil);
prtobj:='';
cprtobj:='';
case apptype of
app_arm9:
begin
prtobj:='prt09';
cprtobj:='cprt09';
end;
app_arm7:
begin
prtobj:='prt07';
cprtobj:='cprt07';
end;
else
internalerror(2019050935);
end;
if (linklibc or linklibgcc) then
prtobj:=cprtobj;
{ Open link.res file }
LinkRes:=TLinkRes.Create(outputexedir+Info.ResName,true);
{ Write path to search libraries }
HPath:=TCmdStrListItem(current_module.locallibrarysearchpath.First);
while assigned(HPath) do
begin
s:=HPath.Str;
if (cs_link_on_target in current_settings.globalswitches) then
s:=ScriptFixFileName(s);
LinkRes.Add('-L'+s);
HPath:=TCmdStrListItem(HPath.Next);
end;
HPath:=TCmdStrListItem(LibrarySearchPath.First);
while assigned(HPath) do
begin
s:=HPath.Str;
if s<>'' then
LinkRes.Add('SEARCH_DIR("'+s+'")');
HPath:=TCmdStrListItem(HPath.Next);
end;
LinkRes.Add('INPUT (');
{ add objectfiles, start with prt0 always }
if prtobj<>'' then
s:=FindObjectFile(prtobj,'',false);
LinkRes.AddFileName(s);
{ try to add crti and crtbegin if linking to C }
if linklibc then
begin
if librarysearchpath.FindFile('crti.o',false,s) then
LinkRes.AddFileName(s);
end;
if linklibgcc then
begin
if librarysearchpath.FindFile('crtbegin.o',false,s) then
LinkRes.AddFileName(s);
end;
while not ObjectFiles.Empty do
begin
s:=ObjectFiles.GetFirst;
if s<>'' then
begin
{ vlink doesn't use SEARCH_DIR for object files }
if not(cs_link_on_target in current_settings.globalswitches) then
s:=FindObjectFile(s,'',false);
LinkRes.AddFileName((maybequoted(s)));
end;
end;
{ Write staticlibraries }
if not StaticLibFiles.Empty then
begin
{ vlink doesn't need, and doesn't support GROUP }
if (cs_link_on_target in current_settings.globalswitches) then
begin
LinkRes.Add(')');
LinkRes.Add('GROUP(');
end;
while not StaticLibFiles.Empty do
begin
S:=StaticLibFiles.GetFirst;
LinkRes.AddFileName((maybequoted(s)));
end;
end;
if (cs_link_on_target in current_settings.globalswitches) then
begin
LinkRes.Add(')');
{ Write sharedlibraries like -l<lib>, also add the needed dynamic linker
here to be sure that it gets linked this is needed for glibc2 systems (PFV) }
linklibc:=false;
linklibgcc:=false;
while not SharedLibFiles.Empty do
begin
S:=SharedLibFiles.GetFirst;
if s<>'c' then
begin
i:=Pos(target_info.sharedlibext,S);
if i>0 then
Delete(S,i,255);
LinkRes.Add('-l'+s);
end
else
begin
LinkRes.Add('-l'+s);
linklibc:=true;
linklibgcc:=true;
end;
end;
{ be sure that libc&libgcc is the last lib }
if linklibgcc then
begin
LinkRes.Add('-lgcc');
end;
if linklibc then
begin
LinkRes.Add('-lc');
end;
end
else
begin
while not SharedLibFiles.Empty do
begin
S:=SharedLibFiles.GetFirst;
LinkRes.Add('lib'+s+target_info.staticlibext);
end;
LinkRes.Add(')');
end;
{ objects which must be at the end }
if linklibgcc then
begin
found1:=librarysearchpath.FindFile('crtend.o',false,s1);
if found1 then
begin
LinkRes.Add('INPUT(');
if found1 then
LinkRes.AddFileName(s1);
LinkRes.Add(')');
end;
end;
if linklibc then
begin
found2:=librarysearchpath.FindFile('crtn.o',false,s2);
if found2 then
begin
LinkRes.Add('INPUT(');
if found2 then
LinkRes.AddFileName(s2);
LinkRes.Add(')');
end;
end;
with linkres do
begin
if apptype=app_arm9 then //ARM9
begin
add('MEMORY {');
add(' ewram : ORIGIN = 0x02000000, LENGTH = 4M - 512k');
add(' dtcm : ORIGIN = 0x0b000000, LENGTH = 16K');
add(' vectors : ORIGIN = 0x01000000, LENGTH = 256');
add(' itcm : ORIGIN = 0x01000100, LENGTH = 32K - 256');
add('}');
add('/*--------------------------------------------------------------------------------');
add(' This Source Code Form is subject to the terms of the Mozilla Public License,');
add(' v. 2.0. If a copy of the MPL was not distributed with this file, You can');
add(' obtain one at https://mozilla.org/MPL/2.0/.');
add('--------------------------------------------------------------------------------*/');
add('OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")');
add('OUTPUT_ARCH(arm)');
add('ENTRY(_start)');
add('');
add('__ewram_end = ORIGIN(ewram) + LENGTH(ewram);');
add('__eheap_end = ORIGIN(ewram) + LENGTH(ewram);');
add('');
add('__dtcm_top = ORIGIN(dtcm) + LENGTH(dtcm);');
add('__irq_flags = __dtcm_top - 0x08;');
add('__irq_vector = __dtcm_top - 0x04;');
add('');
add('__sp_svc = __dtcm_top - 0x100;');
add('__sp_irq = __sp_svc - 0x100;');
add('__sp_usr = __sp_irq - 0x100;');
add('');
add('PHDRS {');
add(' main PT_LOAD FLAGS(7);');
add(' dtcm PT_LOAD FLAGS(7);');
add(' itcm PT_LOAD FLAGS(7);');
add(' vectors PT_LOAD FLAGS(7);');
add(' twl PT_LOAD FLAGS(0x100007);');
add('}');
add('');
add('SECTIONS');
add('{');
add(' /* Secure area crap */');
add(' .secure : { *(.secure) } >ewram :main = 0');
add('');
add(' .crt0 :');
add(' {');
add(' __text_start = . ;');
add(' KEEP (*(.crt0))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0x00');
add('');
add(' .plt : { *(.plt) } >ewram :main = 0xff');
add('');
add(' .init :');
add(' {');
add(' KEEP (*(SORT_NONE(.init)))');
add(' } >ewram :main');
add('');
add(' .text : /* ALIGN (4): */');
add(' {');
add(' *(EXCLUDE_FILE(*.itcm* *.vectors* *.twl*) .text)');
add(' *(EXCLUDE_FILE(*.itcm* *.vectors* *.twl*) .stub)');
add(' *(EXCLUDE_FILE(*.itcm* *.vectors* *.twl*) .text.*)');
add(' /* .gnu.warning sections are handled specially by elf32.em. */');
add(' *(EXCLUDE_FILE(*.twl*) .gnu.warning)');
add(' *(EXCLUDE_FILE(*.twl*) .gnu.linkonce.t*)');
add(' *(.glue_7)');
add(' *(.glue_7t)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add('');
add(' .fini :');
add(' {');
add(' KEEP (*(.fini))');
add(' } >ewram :main =0xff');
add('');
add(' __text_end = . ;');
add('');
add(' .rodata :');
add(' {');
add(' *(EXCLUDE_FILE(*.twl*) .rodata)');
add(' *all.rodata*(*)');
add(' *(EXCLUDE_FILE(*.twl*) .roda)');
add(' *(EXCLUDE_FILE(*.twl*) .rodata.*)');
add(' *(EXCLUDE_FILE(*.twl*) .gnu.linkonce.r*)');
add(' SORT(CONSTRUCTORS)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add('');
add(' .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >ewram :main');
add(' __exidx_start = .;');
add(' ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } >ewram :main');
add(' __exidx_end = .;');
add('');
add(' /* Ensure the __preinit_array_start label is properly aligned. We');
add(' could instead move the label definition inside the section, but');
add(' the linker would then create the section even if it turns out to');
add(' be empty, which isn''t pretty. */');
add('');
add(' . = ALIGN(32 / 8);');
add('');
add(' PROVIDE (__preinit_array_start = .);');
add(' .preinit_array : { KEEP (*(.preinit_array)) } >ewram :main = 0xff');
add(' PROVIDE (__preinit_array_end = .);');
add(' PROVIDE (__init_array_start = .);');
add(' .init_array :');
add(' {');
add(' KEEP (*(SORT(.init_array.*)))');
add(' KEEP (*(.init_array))');
add(' } >ewram :main = 0xff');
add(' PROVIDE (__init_array_end = .);');
add(' PROVIDE (__fini_array_start = .);');
add(' .fini_array :');
add(' {');
add(' KEEP (*(.fini_array))');
add(' KEEP (*(SORT(.fini_array.*)))');
add(' } >ewram :main = 0xff');
add('');
add(' PROVIDE (__fini_array_end = .);');
add('');
add(' .ctors :');
add(' {');
add(' /* gcc uses crtbegin.o to find the start of the constructors, so');
add(' we make sure it is first. Because this is a wildcard, it');
add(' doesn''t matter if the user does not actually link against');
add(' crtbegin.o; the linker won''t look for a file to match a');
add(' wildcard. The wildcard also means that it doesn''t matter which');
add(' directory crtbegin.o is in. */');
add(' KEEP (*crtbegin.o(.ctors))');
add(' KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))');
add(' KEEP (*(SORT(.ctors.*)))');
add(' KEEP (*(.ctors))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add('');
add(' .dtors :');
add(' {');
add(' KEEP (*crtbegin.o(.dtors))');
add(' KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))');
add(' KEEP (*(SORT(.dtors.*)))');
add(' KEEP (*(.dtors))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add('');
add(' .eh_frame :');
add(' {');
add(' KEEP (*(.eh_frame))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add('');
add(' .gcc_except_table :');
add(' {');
add(' *(.gcc_except_table)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add(' .jcr : { KEEP (*(.jcr)) } >ewram :main = 0');
add(' .got : { *(.got.plt) *(.got) *(.rel.got) } >ewram :main = 0');
add('');
add(' .ewram ALIGN(4) :');
add(' {');
add(' __ewram_start = ABSOLUTE(.) ;');
add(' *(.ewram)');
add(' *ewram.*(.text)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :main = 0xff');
add('');
add('');
add(' .data ALIGN(4) :');
add(' {');
add(' __data_start = ABSOLUTE(.);');
add(' *(EXCLUDE_FILE(*.twl*) .data)');
add(' *(EXCLUDE_FILE(*.twl*) .data.*)');
add(' *(EXCLUDE_FILE(*.twl*) .gnu.linkonce.d*)');
add(' CONSTRUCTORS');
add(' . = ALIGN(4);');
add(' __data_end = ABSOLUTE(.) ;');
add(' } >ewram :main = 0xff');
add('');
add(' __bss_vma = . ;');
add('');
add(' .dtcm :');
add(' {');
add(' __dtcm_lma = LOADADDR(.dtcm);');
add(' __dtcm_start = ABSOLUTE(.);');
add(' *(.dtcm)');
add(' *(.dtcm.*)');
add(' . = ALIGN(4);');
add(' __dtcm_end = ABSOLUTE(.);');
add(' } >dtcm AT>ewram :dtcm = 0xff');
add('');
add(' .itcm :');
add(' {');
add(' __itcm_lma = LOADADDR(.itcm);');
add(' __itcm_start = ABSOLUTE(.);');
add(' *(.itcm)');
add(' *.itcm*(.text .stub .text.*)');
add(' . = ALIGN(4);');
add(' __itcm_end = ABSOLUTE(.);');
add(' } >itcm AT>ewram :itcm = 0xff');
add('');
add(' .vectors :');
add(' {');
add(' __vectors_lma = LOADADDR(.vectors);');
add(' __vectors_start = ABSOLUTE(.);');
add(' KEEP(*(.vectors .vectors.*))');
add(' . = ALIGN(4);');
add(' __vectors_end = ABSOLUTE(.);');
add(' } >vectors AT>ewram :vectors = 0xff');
add(' ');
add(' .sbss __dtcm_end (NOLOAD):');
add(' {');
add(' __sbss_start = ABSOLUTE(.);');
add(' __sbss_start__ = ABSOLUTE(.);');
add(' *(.sbss)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' __sbss_end = ABSOLUTE(.);');
add(' } >dtcm :NONE');
add('');
add(' .bss __bss_vma (NOLOAD):');
add(' {');
add(' __bss_start = ABSOLUTE(.);');
add(' __bss_start__ = ABSOLUTE(.);');
add(' *(EXCLUDE_FILE(*.twl*) .dynbss)');
add(' *(EXCLUDE_FILE(*.twl*) .gnu.linkonce.b*)');
add(' *(EXCLUDE_FILE(*.twl*) .bss*)');
add(' *(EXCLUDE_FILE(*.twl*) COMMON)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' __bss_end__ = ABSOLUTE(.) ;');
add(' __end__ = ABSOLUTE(.) ;');
add(' } >ewram :NONE');
add('');
add(' .twl __end__ : AT(MAX(0x2400000,MAX(__end__,LOADADDR(.vectors)+SIZEOF(.vectors))))');
add(' {');
add(' __arm9i_lma__ = LOADADDR(.twl);');
add(' __arm9i_start__ = ABSOLUTE(.);');
add(' *(.twl)');
add(' *.twl*(.text .stub .text.* .gnu.linkonce.t.*)');
add(' *.twl*(.rodata)');
add(' *.twl*(.roda)');
add(' *.twl*(.rodata.*)');
add(' *.twl*(.data)');
add(' *.twl*(.data.*)');
add(' *.twl*(.gnu.linkonce.d*)');
add(' __arm9i_end__ = ABSOLUTE(.);');
add(' } :twl');
add('');
add(' .twl_bss __arm9i_end__ (NOLOAD):');
add(' {');
add(' __twl_bss_start__ = ABSOLUTE(.);');
add(' *(.twl_bss)');
add(' *.twl*(.dynbss)');
add(' *.twl*(.gnu.linkonce.b*)');
add(' *.twl*(.bss*)');
add(' *.twl*(COMMON)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' __twl_bss_end__ = ABSOLUTE(.);');
add(' __twl_end__ = ABSOLUTE(.);');
add(' } :NONE');
add('');
add(' /* Stabs debugging sections. */');
add(' .stab 0 : { *(.stab) }');
add(' .stabstr 0 : { *(.stabstr) }');
add(' .stab.excl 0 : { *(.stab.excl) }');
add(' .stab.exclstr 0 : { *(.stab.exclstr) }');
add(' .stab.index 0 : { *(.stab.index) }');
add(' .stab.indexstr 0 : { *(.stab.indexstr) }');
add(' .comment 0 : { *(.comment) }');
add(' /* DWARF debug sections.');
add(' Symbols in the DWARF debugging sections are relative to the beginning');
add(' of the section so we begin them at 0. */');
add(' /* DWARF 1 */');
add(' .debug 0 : { *(.debug) }');
add(' .line 0 : { *(.line) }');
add(' /* GNU DWARF 1 extensions */');
add(' .debug_srcinfo 0 : { *(.debug_srcinfo) }');
add(' .debug_sfnames 0 : { *(.debug_sfnames) }');
add(' /* DWARF 1.1 and DWARF 2 */');
add(' .debug_aranges 0 : { *(.debug_aranges) }');
add(' .debug_pubnames 0 : { *(.debug_pubnames) }');
add(' /* DWARF 2 */');
add(' .debug_info 0 : { *(.debug_info) }');
add(' .debug_abbrev 0 : { *(.debug_abbrev) }');
add(' .debug_line 0 : { *(.debug_line) }');
add(' .debug_frame 0 : { *(.debug_frame) }');
add(' .debug_str 0 : { *(.debug_str) }');
add(' .debug_loc 0 : { *(.debug_loc) }');
add(' .debug_macinfo 0 : { *(.debug_macinfo) }');
add(' /* SGI/MIPS DWARF 2 extensions */');
add(' .debug_weaknames 0 : { *(.debug_weaknames) }');
add(' .debug_funcnames 0 : { *(.debug_funcnames) }');
add(' .debug_typenames 0 : { *(.debug_typenames) }');
add(' .debug_varnames 0 : { *(.debug_varnames) }');
add(' .stack 0x80000 : { _stack = .; *(.stack) }');
add(' /* These must appear regardless of . */');
add('}');
end;
if apptype=app_arm7 then
begin
add('/*--------------------------------------------------------------------------------');
add(' This Source Code Form is subject to the terms of the Mozilla Public License,');
add(' v. 2.0. If a copy of the MPL was not distributed with this file, You can');
add(' obtain one at https://mozilla.org/MPL/2.0/.');
add('--------------------------------------------------------------------------------*/');
add('OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")');
add('OUTPUT_ARCH(arm)');
add('ENTRY(_start)');
add('');
add('');
add('PHDRS {');
add(' crt0 PT_LOAD FLAGS(7);');
add(' arm7 PT_LOAD FLAGS(7);');
add(' arm7i PT_LOAD FLAGS(0x100007);');
add('}');
add('');
add('');
add('MEMORY {');
add(' ewram : ORIGIN = 0x02380000, LENGTH = 12M - 512K');
add(' rom : ORIGIN = 0x08000000, LENGTH = 32M');
add(' iwram : ORIGIN = 0x037f8000, LENGTH = 96K');
add('');
add(' twl_ewram : ORIGIN = 0x02e80000, LENGTH = 512K - 64K');
add(' twl_iwram : ORIGIN = 0x03000000, LENGTH = 256K');
add('}');
add('');
add('__iwram_start = ORIGIN(iwram);');
add('__iwram_top = ORIGIN(iwram)+ LENGTH(iwram);');
add('');
add('__sp_irq = __iwram_top - 0x100;');
add('__sp_svc = __sp_irq - 0x100;');
add('__sp_usr = __sp_svc - 0x100;');
add('');
add('__irq_flags = 0x04000000 - 8;');
add('__irq_flagsaux = 0x04000000 - 0x40;');
add('__irq_vector = 0x04000000 - 4;');
add('');
add('SECTIONS');
add('{');
add('');
add(' .twl :');
add(' {');
add(' __arm7i_lma__ = LOADADDR(.twl);');
add(' __arm7i_start__ = .;');
add(' *(.twl)');
add(' *.twl*(.text .stub .text.* .gnu.linkonce.t.*)');
add(' *.twl*(.rodata)');
add(' *.twl*(.roda)');
add(' *.twl*(.rodata.*)');
add(' *.twl*(.data)');
add(' *.twl*(.data.*)');
add(' *.twl*(.gnu.linkonce.d*)');
add(' . = ALIGN(4);');
add(' __arm7i_end__ = .;');
add(' } >twl_iwram AT>twl_ewram :arm7i');
add('');
add(' .twl_bss ALIGN(4) (NOLOAD) :');
add(' {');
add(' __twl_bss_start__ = .;');
add(' *(.twl_bss)');
add(' *.twl.*(.dynbss)');
add(' *.twl.*(.gnu.linkonce.b*)');
add(' *.twl.*(.bss*)');
add(' *.twl.*(COMMON)');
add(' . = ALIGN(4);');
add(' __twl_bss_end__ = .;');
add(' } >twl_iwram :NONE');
add('');
add(' .crt0 :');
add(' {');
add(' KEEP (*(.crt0))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >ewram :crt0');
add('');
add(' .text :');
add(' {');
add(' __arm7_lma__ = LOADADDR(.text);');
add(' __arm7_start__ = .;');
add(' KEEP (*(SORT_NONE(.init)))');
add(' *(.plt)');
add(' *(.text .stub .text.* .gnu.linkonce.t.*)');
add(' KEEP (*(.text.*personality*))');
add(' /* .gnu.warning sections are handled specially by elf32.em. */');
add(' *(.gnu.warning)');
add(' *(.glue_7t) *(.glue_7) *(.vfp11_veneer)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >iwram AT>ewram :arm7');
add('');
add(' .fini :');
add(' {');
add(' KEEP (*(.fini))');
add(' } >iwram AT>ewram');
add('');
add(' .rodata :');
add(' {');
add(' *(.rodata)');
add(' *all.rodata*(*)');
add(' *(.roda)');
add(' *(.rodata.*)');
add(' *(.gnu.linkonce.r*)');
add(' SORT(CONSTRUCTORS)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >iwram AT>ewram');
add('');
add(' .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >iwram AT>ewram');
add('');
add(' .ARM.exidx : {');
add(' __exidx_start = .;');
add(' *(.ARM.exidx* .gnu.linkonce.armexidx.*)');
add(' __exidx_end = .;');
add(' } >iwram AT>ewram');
add('');
add('/* Ensure the __preinit_array_start label is properly aligned. We');
add(' could instead move the label definition inside the section, but');
add(' the linker would then create the section even if it turns out to');
add(' be empty, which isn''t pretty. */');
add(' .preinit_array : {');
add(' . = ALIGN(32 / 8);');
add(' PROVIDE (__preinit_array_start = .);');
add(' KEEP (*(.preinit_array))');
add(' PROVIDE (__preinit_array_end = .);');
add(' } >iwram AT>ewram');
add('');
add(' .init_array : {');
add(' PROVIDE (__init_array_start = .);');
add(' KEEP (*(.init_array))');
add(' PROVIDE (__init_array_end = .);');
add(' } >iwram AT>ewram');
add('');
add(' .fini_array : {');
add(' PROVIDE (__fini_array_start = .);');
add(' KEEP (*(.fini_array))');
add(' PROVIDE (__fini_array_end = .);');
add(' } >iwram AT>ewram');
add('');
add(' .ctors :');
add(' {');
add(' /* gcc uses crtbegin.o to find the start of the constructors, so');
add(' we make sure it is first. Because this is a wildcard, it');
add(' doesn''t matter if the user does not actually link against');
add(' crtbegin.o; the linker won''t look for a file to match a');
add(' wildcard. The wildcard also means that it doesn''t matter which');
add(' directory crtbegin.o is in. */');
add(' KEEP (*crtbegin.o(.ctors))');
add(' KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))');
add(' KEEP (*(SORT(.ctors.*)))');
add(' KEEP (*(.ctors))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >iwram AT>ewram');
add('');
add(' .dtors :');
add(' {');
add(' KEEP (*crtbegin.o(.dtors))');
add(' KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))');
add(' KEEP (*(SORT(.dtors.*)))');
add(' KEEP (*(.dtors))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >iwram AT>ewram');
add('');
add(' .eh_frame :');
add(' {');
add(' KEEP (*(.eh_frame))');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >iwram AT>ewram');
add('');
add(' .gcc_except_table :');
add(' {');
add(' *(.gcc_except_table)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' } >iwram AT>ewram');
add(' .jcr : { KEEP (*(.jcr)) } >iwram AT>ewram');
add(' .got : { *(.got.plt) *(.got) } >iwram AT>ewram');
add('');
add(' .data ALIGN(4) : {');
add(' __data_start = ABSOLUTE(.);');
add(' *(.data)');
add(' *(.data.*)');
add(' *(.gnu.linkonce.d*)');
add(' CONSTRUCTORS');
add(' . = ALIGN(4);');
add(' __data_end = ABSOLUTE(.) ;');
add(' } >iwram AT>ewram');
add('');
add(' .bss ALIGN(4) (NOLOAD) :');
add(' {');
add(' __arm7_end__ = .;');
add(' __bss_start = ABSOLUTE(.);');
add(' __bss_start__ = ABSOLUTE(.);');
add(' *(.dynbss)');
add(' *(.gnu.linkonce.b*)');
add(' *(.bss*)');
add(' *(COMMON)');
add(' . = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
add(' __bss_end__ = ABSOLUTE(.);');
add(' __end__ = ABSOLUTE(.);');
add(' } >iwram');
add('');
add(' /* Stabs debugging sections. */');
add(' .stab 0 : { *(.stab) }');
add(' .stabstr 0 : { *(.stabstr) }');
add(' .stab.excl 0 : { *(.stab.excl) }');
add(' .stab.exclstr 0 : { *(.stab.exclstr) }');
add(' .stab.index 0 : { *(.stab.index) }');
add(' .stab.indexstr 0 : { *(.stab.indexstr) }');
add(' .comment 0 : { *(.comment) }');
add(' /* DWARF debug sections.');
add(' Symbols in the DWARF debugging sections are relative to the beginning');
add(' of the section so we begin them at 0. */');
add(' /* DWARF 1 */');
add(' .debug 0 : { *(.debug) }');
add(' .line 0 : { *(.line) }');
add(' /* GNU DWARF 1 extensions */');
add(' .debug_srcinfo 0 : { *(.debug_srcinfo) }');
add(' .debug_sfnames 0 : { *(.debug_sfnames) }');
add(' /* DWARF 1.1 and DWARF 2 */');
add(' .debug_aranges 0 : { *(.debug_aranges) }');
add(' .debug_pubnames 0 : { *(.debug_pubnames) }');
add(' /* DWARF 2 */');
add(' .debug_info 0 : { *(.debug_info) }');
add(' .debug_abbrev 0 : { *(.debug_abbrev) }');
add(' .debug_line 0 : { *(.debug_line) }');
add(' .debug_frame 0 : { *(.debug_frame) }');
add(' .debug_str 0 : { *(.debug_str) }');
add(' .debug_loc 0 : { *(.debug_loc) }');
add(' .debug_macinfo 0 : { *(.debug_macinfo) }');
add(' /* SGI/MIPS DWARF 2 extensions */');
add(' .debug_weaknames 0 : { *(.debug_weaknames) }');
add(' .debug_funcnames 0 : { *(.debug_funcnames) }');
add(' .debug_typenames 0 : { *(.debug_typenames) }');
add(' .debug_varnames 0 : { *(.debug_varnames) }');
add(' /* These must appear regardless of . */');
add('}');
end;
end;
{ Write and Close response }
linkres.writetodisk;
linkres.free;
WriteResponseFile:=True;
end;
function TLinkerNDS.MakeExecutable:boolean;
var
binstr,
cmdstr : TCmdStr;
success : boolean;
StaticStr,
GCSectionsStr,
DynLinkStr,
MapStr,
StripStr: string;
preName: string;
begin
{ for future use }
StaticStr:='';
StripStr:='';
MapStr:='';
DynLinkStr:='';
GCSectionsStr:='';
preName:='';
case apptype of
app_arm9: preName:='.nef';
app_arm7: preName:='.nlf';
else
internalerror(2019050934);
end;
if (cs_link_strip in current_settings.globalswitches) and
not(cs_link_separate_dbg_file in current_settings.globalswitches) then
StripStr:='-s';
if (cs_link_map in current_settings.globalswitches) then
StripStr:='-Map '+maybequoted(ChangeFileExt(current_module.exefilename,'.map'));
if create_smartlink_sections then
GCSectionsStr:='--gc-sections';
if not(cs_link_nolink in current_settings.globalswitches) then
Message1(exec_i_linking,current_module.exefilename);
{ Write used files and libraries }
WriteResponseFile();
{ Call linker }
SplitBinCmd(Info.ExeCmd[1],binstr,cmdstr);
Replace(cmdstr,'$OPT',Info.ExtraOptions);
Replace(cmdstr,'$EXE',(maybequoted(ScriptFixFileName(ChangeFileExt(current_module.exefilename,preName)))));
Replace(cmdstr,'$RES',(maybequoted(ScriptFixFileName(outputexedir+Info.ResName))));
Replace(cmdstr,'$STATIC',StaticStr);
Replace(cmdstr,'$STRIP',StripStr);
Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
Replace(cmdstr,'$MAP',MapStr);
Replace(cmdstr,'$DYNLINK',DynLinkStr);
success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
{ Remove ReponseFile }
if (success) and not(cs_link_nolink in current_settings.globalswitches) then
DeleteFile(outputexedir+Info.ResName);
{ Post process }
if success then
begin
success:=DoExec(FindUtil(utilsprefix + 'objcopy'), '-O binary '+
ChangeFileExt(current_module.exefilename, preName) + ' ' +
ChangeFileExt(current_module.exefilename, preName+target_info.exeext),
true,false);
end;
if success and (apptype=app_arm9) then
begin
success:=DoExec(FindUtil('ndstool'), '-c ' +
ChangeFileExt(current_module.exefilename, '.nds') + ' -9 ' +
ChangeFileExt(current_module.exefilename, preName+target_info.exeext),
true,false);
end;
MakeExecutable:=success; { otherwise a recursive call to link method }
end;
{*****************************************************************************
Initialize
*****************************************************************************}
initialization
RegisterLinker(ld_nds,TLinkerNDS);
RegisterTarget(system_arm_nds_info);
end.
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