mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-16 01:39:27 +02:00
+ compiler has the linker script now embedded
+ gba linker takes care of binutilsprefix + objcopy is called by the compiler git-svn-id: trunk@4938 -
This commit is contained in:
florian
parent
d4dcbeec4a
commit
efa4967d37
@ -32,8 +32,8 @@ unit i_gba;
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system : system_arm_gba;
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name : 'GameBoy Advance';
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shortname : 'gba';
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flags : [tf_needs_symbol_size,tf_files_case_sensitive,tf_use_function_relative_addresses,
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tf_smartlink_sections];
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flags : [tf_needs_symbol_size,tf_files_case_sensitive,tf_use_function_relative_addresses
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,tf_smartlink_sections];
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cpu : cpu_arm;
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unit_env : '';
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extradefines : '';
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@ -1,7 +1,7 @@
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{
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This unit implements support import,export,link routines
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for the (arm) GameBoy Advance target
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Copyright (c) 2001-2002 by Peter Vreman
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This program is free software; you can redistribute it and/or modify
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@ -62,7 +62,7 @@ procedure TLinkerGba.SetDefaultInfo;
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begin
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with Info do
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begin
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ExeCmd[1]:='ld $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -L. -o $EXE $RES';
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ExeCmd[1]:='ld -g $OPT $DYNLINK $STATIC $GCSECTIONS $STRIP -L. -o $EXE -T $RES';
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end;
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end;
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@ -76,7 +76,7 @@ Var
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linklibc : boolean;
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begin
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WriteResponseFile:=False;
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{ Open link.res file }
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LinkRes:=TLinkRes.Create(outputexedir+Info.ResName);
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@ -119,7 +119,7 @@ begin
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if not StaticLibFiles.Empty then
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begin
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{ vlink doesn't need, and doesn't support GROUP }
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if (cs_link_on_target in aktglobalswitches) then
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if (cs_link_on_target in aktglobalswitches) then
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begin
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LinkRes.Add(')');
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LinkRes.Add('GROUP(');
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@ -130,8 +130,8 @@ begin
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LinkRes.AddFileName((maybequoted(s)));
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end;
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end;
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if (cs_link_on_target in aktglobalswitches) then
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if (cs_link_on_target in aktglobalswitches) then
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begin
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LinkRes.Add(')');
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@ -168,9 +168,321 @@ begin
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S:=SharedLibFiles.GetFirst;
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LinkRes.Add('lib'+s+target_info.staticlibext);
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end;
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LinkRes.Add(')');
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LinkRes.Add(')');
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end;
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with linkres do
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begin
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add('/* Linker Script Original v1.3 by Jeff Frohwein */');
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add('/* v1.0 - Original release */');
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add('/* v1.1 - Added proper .data section support */');
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add('/* v1.2 - Added support for c++ & iwram overlays */');
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add('/* - Major contributions by Jason Wilkins. */');
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add('/* v1.3 - .ewram section now can be used when */');
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add('/* compiling for MULTIBOOT mode. This fixes */');
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add('/* malloc() in DevKitAdvance which depends */');
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add('/* on __eheap_start instead of end to define*/');
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add('/* the starting location of heap space. */');
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add('/* External global variable __gba_iwram_heap*/');
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add('/* support added to allow labels end, _end, */');
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add('/* & __end__ to point to end of iwram or */');
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add('/* the end of ewram. */');
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add('/* Additions by WinterMute */');
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add('/* v1.4 - .sbss section added for unitialised */');
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add('/* data in ewram */');
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add('/* v1.5 - padding section added to stop EZF */');
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add('/* stripping important data */');
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add('');
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add('/* This file is released into the public domain */');
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add('/* for commercial or non-commercial use with no */');
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add('/* restrictions placed upon it. */');
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add('');
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add('/* NOTE!!!: This linker script defines the RAM & */');
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add('/* ROM start addresses. In order for it to work */');
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add('/* properly, remove -Ttext and -Tbss linker */');
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add('/* options from your makefile if they are */');
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add('/* present. */');
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add('');
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add('/* You can use the following to view section */');
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add('/* addresses in your .elf file: */');
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add('/* objdump -h file.elf */');
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add('/* Please note that empty sections may incorrectly*/');
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add('/* list the lma address as the vma address for */');
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add('/* some versions of objdump. */');
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add('');
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add('OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")');
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add('OUTPUT_ARCH(arm)');
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add('ENTRY(_start)');
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add('/* SEARCH_DIR(/bin/arm); */');
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add('');
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add('/* The linker script function "var1 += var2;" sometimes */');
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add('/* reports incorrect values in the *.map file but the */');
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add('/* actual value it calculates is usually, if not always, */');
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add('/* correct. If you leave out the ". = ALIGN(4);" at the */');
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add('/* end of each section then the return value of SIZEOF() */');
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add('/* is sometimes incorrect and "var1 += var2;" appears to */');
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add('/* not work as well. "var1 += var2" style functions are */');
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add('/* avoided below as a result. */');
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add('');
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add('MEMORY {');
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add('');
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add('rom : ORIGIN = 0x08000000, LENGTH = 32M');
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add('iwram : ORIGIN = 0x03000000, LENGTH = 32K');
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add('ewram : ORIGIN = 0x02000000, LENGTH = 256K');
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add('}');
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add('');
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add('/*');
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add('__text_start = 0x8000000;');
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add('__eheap_end = 0x2040000;');
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add('__iwram_start = 0x3000000;');
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add('__iwram_end = 0x3008000;');
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add('');
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add('__sp_irq = __iwram_end - 0x100;');
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add('__sp_usr = __sp_irq - 0x100;');
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add('*/');
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add('__text_start = ORIGIN(rom);');
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add('/* __eheap_end = ORIGIN(ewram) + 0x40000; */');
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add('__eheap_end = ORIGIN(ewram) + LENGTH(ewram);');
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add('__iwram_start = ORIGIN(iwram);');
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add('/* __iwram_end = ORIGIN(iwram) + 0x8000; */');
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add('__iwram_end = ORIGIN(iwram) + LENGTH(iwram); ');
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add('__sp_irq = __iwram_end - 0x100;');
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add('__sp_usr = __sp_irq - 0x100;');
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add('');
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add('');
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add('SECTIONS');
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add('{');
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add('. = __text_start;');
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add('.init :');
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add('{');
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add('KEEP (*(.init))');
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add('. = ALIGN(4);');
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add('} >rom =0xff');
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add('');
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add('.plt :');
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add('{');
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add('*(.plt)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom');
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add('');
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add('.text : /* ALIGN (4): */');
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add('{');
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add('*(EXCLUDE_FILE (*.iwram*) .text)');
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add('*(.text.*)');
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add('*(.stub)');
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add('/* .gnu.warning sections are handled specially by elf32.em. */');
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add('*(.gnu.warning)');
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add('*(.gnu.linkonce.t*)');
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add('*(.glue_7)');
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add('*(.glue_7t)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom = 0xff');
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add('');
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add('__text_end = .;');
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add('.fini :');
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add('{');
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add('KEEP (*(.fini))');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom =0');
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add('');
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add('.rodata :');
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add('{');
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add('*(.rodata)');
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add('*all.rodata*(*)');
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add('*(.roda)');
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add('*(.rodata.*)');
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add('*(.gnu.linkonce.r*)');
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add('SORT(CONSTRUCTORS)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom = 0xff');
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add('');
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add('.ctors :');
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add('{');
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add('/* gcc uses crtbegin.o to find the start of the constructors, so');
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add('we make sure it is first. Because this is a wildcard, it');
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add('doesn''t matter if the user does not actually link against');
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add('crtbegin.o; the linker won''t look for a file to match a');
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add('wildcard. The wildcard also means that it doesn''t matter which');
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add('directory crtbegin.o is in. */');
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add('KEEP (*crtbegin.o(.ctors))');
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add('KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))');
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add('KEEP (*(SORT(.ctors.*)))');
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add('KEEP (*(.ctors))');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom = 0');
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add('');
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add('.dtors :');
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add('{');
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add('KEEP (*crtbegin.o(.dtors))');
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add('KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))');
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add('KEEP (*(SORT(.dtors.*)))');
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add('KEEP (*(.dtors))');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom = 0');
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add('');
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add('.jcr : { KEEP (*(.jcr)) } >rom ');
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add('');
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add('.eh_frame :');
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add('{');
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add('KEEP (*(.eh_frame))');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom = 0');
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add('');
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add('.gcc_except_table :');
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add('{');
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add('*(.gcc_except_table)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >rom = 0');
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add('');
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add('__iwram_lma = .;');
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add('');
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add('.iwram __iwram_start : AT (__iwram_lma)');
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add('{');
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add('__iwram_start = ABSOLUTE(.) ;');
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add('*(.iwram)');
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add('*iwram.*(.text)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >iwram = 0xff');
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add('');
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add('__data_lma = __iwram_lma + SIZEOF(.iwram) ;');
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add('__iwram_end = . ;');
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add('');
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add('.bss ALIGN(4) :');
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add('{');
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add('__bss_start = ABSOLUTE(.);');
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add('__bss_start__ = ABSOLUTE(.);');
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add('*(.dynbss)');
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add('*(.gnu.linkonce.b*)');
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add('*(.bss*)');
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add('*(COMMON)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('} >iwram');
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add('');
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add('__bss_end = . ;');
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add('__bss_end__ = . ;');
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add('');
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add('.data ALIGN(4) : AT (__data_lma)');
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add('{');
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add('__data_start = ABSOLUTE(.);');
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add('*(.data)');
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add('*(.data.*)');
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add('*(.gnu.linkonce.d*)');
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add('CONSTRUCTORS');
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add('. = ALIGN(4);');
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add('} >iwram = 0xff');
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add('');
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add('__iwram_overlay_lma = __data_lma + SIZEOF(.data);');
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add('');
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add('__data_end = .;');
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add('__iwram_overlay_start = . ;');
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add('');
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add('OVERLAY ALIGN(4) : NOCROSSREFS AT (__iwram_overlay_lma)');
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add('{');
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add('.iwram0 { *(.iwram0) . = ALIGN(4);}');
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add('.iwram1 { *(.iwram1) . = ALIGN(4);}');
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add('.iwram2 { *(.iwram2) . = ALIGN(4);}');
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add('.iwram3 { *(.iwram3) . = ALIGN(4);}');
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add('.iwram4 { *(.iwram4) . = ALIGN(4);}');
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add('.iwram5 { *(.iwram5) . = ALIGN(4);}');
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add('.iwram6 { *(.iwram6) . = ALIGN(4);}');
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add('.iwram7 { *(.iwram7) . = ALIGN(4);}');
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add('.iwram8 { *(.iwram8) . = ALIGN(4);}');
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add('.iwram9 { *(.iwram9) . = ALIGN(4);}');
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add('}>iwram = 0xff');
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add('');
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add('__ewram_lma = LOADADDR(.iwram0) + SIZEOF(.iwram0)+SIZEOF(.iwram1)+SIZEOF(.iwram2)+SIZEOF(.iwram3)+SIZEOF(.iwram4)+SIZEOF(.iwram5)+SIZEOF(.iwram6)+SIZEOF(.iwram7)+SIZEOF(.iwram8)+SIZEOF(.iwram9);');
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add('');
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add('__iwram_overlay_end = . ;');
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add('__iheap_start = . ;');
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add('');
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add('__ewram_start = 0x2000000;');
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add('.ewram __ewram_start : AT (__ewram_lma)');
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add('{');
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add('*(.ewram)');
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add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
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add('}>ewram = 0xff');
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add('');
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add('__ewram_overlay_lma = __ewram_lma + SIZEOF(.ewram);');
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add('');
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add('.sbss ALIGN(4):');
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add('{');
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add('__sbss_start = ABSOLUTE(.);');
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add('*(.sbss)');
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add('. = ALIGN(4);');
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add('} >ewram');
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add(' ');
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add('__sbss_end = .;');
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add('');
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add('__ewram_end = . ;');
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add('__ewram_overlay_start = . ;');
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add('');
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add('OVERLAY ALIGN(4): NOCROSSREFS AT (__ewram_overlay_lma)');
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add('{');
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add('.ewram0 { *(.ewram0) . = ALIGN(4);}');
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add('.ewram1 { *(.ewram1) . = ALIGN(4);}');
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add('.ewram2 { *(.ewram2) . = ALIGN(4);}');
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add('.ewram3 { *(.ewram3) . = ALIGN(4);}');
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add('.ewram4 { *(.ewram4) . = ALIGN(4);}');
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add('.ewram5 { *(.ewram5) . = ALIGN(4);}');
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add('.ewram6 { *(.ewram6) . = ALIGN(4);}');
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add('.ewram7 { *(.ewram7) . = ALIGN(4);}');
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add('.ewram8 { *(.ewram8) . = ALIGN(4);}');
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add('.ewram9 { *(.ewram9) . = ALIGN(4);}');
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add('}>ewram = 0xff');
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add('');
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add('__pad_lma = LOADADDR(.ewram0) + SIZEOF(.ewram0)+SIZEOF(.ewram1)+SIZEOF(.ewram2)+SIZEOF(.ewram3)+SIZEOF(.ewram4)+SIZEOF(.ewram5)+SIZEOF(.ewram6)+SIZEOF(.ewram7)+SIZEOF(.ewram8)+SIZEOF(.ewram9);');
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add('');
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add('/* EZF Advance strips trailing 0xff bytes, add a pad section so nothing important is removed */');
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||||
add('.pad ALIGN(4) : AT (__pad_lma)');
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||||
add('{');
|
||||
add('LONG(0x52416b64)');
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||||
add('LONG(0x4d)');
|
||||
add('. = ALIGN(4); /* REQUIRED. LD is flaky without it. */');
|
||||
add('} = 0xff');
|
||||
add('');
|
||||
add('__ewram_overlay_end = . ;');
|
||||
add('__eheap_start = . ;');
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||||
add('');
|
||||
add('_end = .;');
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||||
add('__end__ = _end ; /* v1.3 */');
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||||
add('PROVIDE (end = _end); /* v1.3 */');
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||||
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) }');
|
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add('/* DWARF debug sections.');
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||||
add('Symbols in the DWARF debugging sections are relative to the beginning');
|
||||
add('of the section so we begin them at 0. */');
|
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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) }');
|
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add('/* SGI/MIPS DWARF 2 extensions */');
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add('.debug_weaknames 0 : { *(.debug_weaknames) }');
|
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add('.debug_funcnames 0 : { *(.debug_funcnames) }');
|
||||
add('.debug_typenames 0 : { *(.debug_typenames) }');
|
||||
add('.debug_varnames 0 : { *(.debug_varnames) }');
|
||||
add('.stack 0x80000 : { _stack = .; *(.stack) }');
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||||
add('/* These must appear regardless of . */');
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||||
add('}');
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||||
end;
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||||
|
||||
{ Write and Close response }
|
||||
linkres.writetodisk;
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||||
@ -186,8 +498,17 @@ var
|
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binstr : string;
|
||||
cmdstr : TCmdStr;
|
||||
success : boolean;
|
||||
StripStr: string[40];
|
||||
StaticStr,
|
||||
GCSectionsStr,
|
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DynLinkStr,
|
||||
StripStr: string;
|
||||
begin
|
||||
{ for future use }
|
||||
StaticStr:='';
|
||||
StripStr:='';
|
||||
DynLinkStr:='';
|
||||
|
||||
GCSectionsStr:='--gc-sections';
|
||||
//if not(cs_link_extern in aktglobalswitches) then
|
||||
if not(cs_link_nolink in aktglobalswitches) then
|
||||
Message1(exec_i_linking,current_module.exefilename^);
|
||||
@ -200,28 +521,40 @@ begin
|
||||
Replace(cmdstr,'$OPT',Info.ExtraOptions);
|
||||
if not(cs_link_on_target in aktglobalswitches) then
|
||||
begin
|
||||
Replace(cmdstr,'$EXE',(maybequoted(ScriptFixFileName(current_module.exefilename^))));
|
||||
Replace(cmdstr,'$EXE',(maybequoted(ScriptFixFileName(ForceExtension(current_module.exefilename^,'.elf')))));
|
||||
Replace(cmdstr,'$RES',(maybequoted(ScriptFixFileName(outputexedir+Info.ResName))));
|
||||
Replace(cmdstr,'$STATIC',StaticStr);
|
||||
Replace(cmdstr,'$STRIP',StripStr);
|
||||
Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
|
||||
Replace(cmdstr,'$DYNLINK',DynLinkStr);
|
||||
end
|
||||
else
|
||||
begin
|
||||
Replace(cmdstr,'$EXE',maybequoted(ScriptFixFileName(current_module.exefilename^)));
|
||||
Replace(cmdstr,'$EXE',maybequoted(ScriptFixFileName(ForceExtension(current_module.exefilename^,'.elf'))));
|
||||
Replace(cmdstr,'$RES',maybequoted(ScriptFixFileName(outputexedir+Info.ResName)));
|
||||
Replace(cmdstr,'$STATIC',StaticStr);
|
||||
Replace(cmdstr,'$STRIP',StripStr);
|
||||
Replace(cmdstr,'$GCSECTIONS',GCSectionsStr);
|
||||
Replace(cmdstr,'$DYNLINK',DynLinkStr);
|
||||
end;
|
||||
success:=DoExec(FindUtil(BinStr),cmdstr,true,false);
|
||||
success:=DoExec(FindUtil(utilsprefix+BinStr),cmdstr,true,false);
|
||||
|
||||
{ Remove ReponseFile }
|
||||
if (success) and not(cs_link_nolink in aktglobalswitches) then
|
||||
RemoveFile(outputexedir+Info.ResName);
|
||||
|
||||
{ Post process }
|
||||
if success then
|
||||
begin
|
||||
success:=DoExec(FindUtil(utilsprefix+'objcopy'),'-O binary '+
|
||||
ForceExtension(current_module.exefilename^,'.elf')+' '+
|
||||
current_module.exefilename^,true,false);
|
||||
end;
|
||||
|
||||
MakeExecutable:=success; { otherwise a recursive call to link method }
|
||||
|
||||
|
||||
end;
|
||||
|
||||
|
||||
|
||||
{*****************************************************************************
|
||||
Initialize
|
||||
*****************************************************************************}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user