mirror of
https://github.com/LNH-team/pico-launcher.git
synced 2025-12-05 13:16:06 +01:00
341 lines
11 KiB
Plaintext
341 lines
11 KiB
Plaintext
/* Copyright (C) 2014-2024 Free Software Foundation, Inc.
|
|
Copying and distribution of this script, with or without modification,
|
|
are permitted in any medium without royalty provided the copyright
|
|
notice and this notice are preserved. */
|
|
|
|
/* SPDX-License-Identifier: MPL-2.0 AND FSFAP */
|
|
|
|
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
|
|
OUTPUT_ARCH(arm)
|
|
ENTRY(_start)
|
|
|
|
/* User-configurable symbols. */
|
|
|
|
/* The size, in bytes, of the amount of shared WRAM used by ARM7 code. */
|
|
/* Only 0 and 32768 are valid values. */
|
|
PROVIDE(__shared_wram_size = 16384);
|
|
ASSERT(__shared_wram_size == 0 || __shared_wram_size == 16384, "ARM7 shared WRAM size must be 0 KB or 32 KB");
|
|
|
|
/* The size, in bytes, of the reserved section at the end of IWRAM. */
|
|
/* Traditionally, ARM7 reserves 0x40 bytes here. */
|
|
PROVIDE(__iwram_reserved_size = 0x40);
|
|
ASSERT((__iwram_reserved_size & 3) == 0, "__iwram_reserved_size must be a multiple of 4");
|
|
|
|
/* ARM supervisor (SWI calls) stack size. */
|
|
PROVIDE(__svc_stack_size = 0x100);
|
|
ASSERT((__svc_stack_size & 3) == 0, "__svc_stack_size must be a multiple of 4");
|
|
|
|
/* ARM interrupt handler stack size. */
|
|
PROVIDE(__irq_stack_size = 0x100);
|
|
ASSERT((__irq_stack_size & 3) == 0, "__irq_stack_size must be a multiple of 4");
|
|
|
|
PHDRS {
|
|
crt0 PT_LOAD FLAGS(7);
|
|
arm7 PT_LOAD FLAGS(7);
|
|
arm7i PT_LOAD FLAGS(0x100007); /* (DSi flag for ndstool | 7) */
|
|
}
|
|
|
|
MEMORY {
|
|
ewram : ORIGIN = 0x02380000, LENGTH = 12M - 512K
|
|
iwram : ORIGIN = 0x03800000 - __shared_wram_size, LENGTH = 65536 + __shared_wram_size
|
|
|
|
twl_ewram : ORIGIN = 0x02e80000, LENGTH = 512K - 64K
|
|
twl_iwram : ORIGIN = 0x03000000, LENGTH = 256K
|
|
}
|
|
|
|
__iwram_start = ORIGIN(iwram);
|
|
__iwram_top = ORIGIN(iwram) + LENGTH(iwram);
|
|
|
|
__sp_irq = __iwram_top - __iwram_reserved_size;
|
|
__sp_svc = __sp_irq - __irq_stack_size;
|
|
__sp_usr = __sp_svc - __svc_stack_size;
|
|
|
|
__irq_flags = 0x04000000 - 8;
|
|
__irq_flagsaux = 0x04000000 - 0x40;
|
|
__irq_vector = 0x04000000 - 4;
|
|
|
|
SECTIONS
|
|
{
|
|
|
|
.twl :
|
|
{
|
|
__arm7i_lma__ = LOADADDR(.twl);
|
|
__arm7i_start__ = .;
|
|
*(.twl)
|
|
*(.twl.text .twl.text.*)
|
|
*(.twl.rodata .twl.rodata.*)
|
|
*(.twl.data .twl.data.*)
|
|
*.twl*(.text .stub .text.* .gnu.linkonce.t.*)
|
|
*.twl*(.rodata)
|
|
*.twl*(.roda)
|
|
*.twl*(.rodata.*)
|
|
*.twl*(.data)
|
|
*.twl*(.data.*)
|
|
*.twl*(.gnu.linkonce.d*)
|
|
. = ALIGN(4);
|
|
__arm7i_end__ = .;
|
|
} >twl_iwram AT>twl_ewram :arm7i
|
|
|
|
.twl_bss ALIGN(4) (NOLOAD) :
|
|
{
|
|
__twl_bss_start__ = .;
|
|
*(.twl_bss .twl_bss.*)
|
|
*(.twl.bss .twl.bss.*)
|
|
*.twl.*(.dynbss)
|
|
*.twl.*(.gnu.linkonce.b*)
|
|
*.twl.*(.bss*)
|
|
*.twl.*(COMMON)
|
|
. = ALIGN(4);
|
|
__twl_bss_end__ = .;
|
|
} >twl_iwram :NONE
|
|
|
|
.twl_noinit ALIGN(4) (NOLOAD):
|
|
{
|
|
__twl_noinit_start__ = ABSOLUTE(.);
|
|
*(.twl_noinit .twl_noinit.*)
|
|
*(.twl.noinit .twl.noinit.*)
|
|
*.twl*(.noinit)
|
|
*.twl*(.noinit.*)
|
|
*.twl*(.gnu.linkonce.n.*)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
__twl_noinit_end__ = ABSOLUTE(.);
|
|
__twl_end__ = ABSOLUTE(.);
|
|
} >twl_iwram :NONE
|
|
|
|
.crt0 :
|
|
{
|
|
KEEP (*(.crt0))
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >ewram :crt0
|
|
|
|
.text :
|
|
{
|
|
__arm7_lma__ = LOADADDR(.text);
|
|
__arm7_start__ = .;
|
|
KEEP (*(SORT_NONE(.init)))
|
|
*(.plt)
|
|
*(.text .stub .text.* .gnu.linkonce.t.*)
|
|
KEEP (*(.text.*personality*))
|
|
/* .gnu.warning sections are handled specially by elf32.em. */
|
|
*(.gnu.warning)
|
|
*(.glue_7t) *(.glue_7) *(.v4_bx)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >iwram AT>ewram :arm7
|
|
|
|
.fini :
|
|
{
|
|
KEEP (*(.fini))
|
|
} >iwram AT>ewram
|
|
|
|
.rodata :
|
|
{
|
|
*(.rodata)
|
|
*all.rodata*(*)
|
|
*(.roda)
|
|
*(.rodata.*)
|
|
*(.gnu.linkonce.r*)
|
|
SORT(CONSTRUCTORS)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >iwram AT>ewram
|
|
|
|
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >iwram AT>ewram
|
|
|
|
.ARM.exidx : {
|
|
__exidx_start = .;
|
|
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
|
|
__exidx_end = .;
|
|
} >iwram AT>ewram
|
|
|
|
/* Ensure the __preinit_array_start label is properly aligned. We
|
|
could instead move the label definition inside the section, but
|
|
the linker would then create the section even if it turns out to
|
|
be empty, which isn't pretty. */
|
|
. = ALIGN(32 / 8);
|
|
.init_array :
|
|
{
|
|
PROVIDE (__preinit_array_start = .);
|
|
PROVIDE (__bothinit_array_start = .);
|
|
KEEP (*(.preinit_array))
|
|
PROVIDE (__preinit_array_end = .);
|
|
|
|
PROVIDE (__init_array_start = .);
|
|
KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
|
|
KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
|
|
PROVIDE (__init_array_end = .);
|
|
PROVIDE (__bothinit_array_end = .);
|
|
} >iwram AT>ewram
|
|
.fini_array :
|
|
{
|
|
PROVIDE (__fini_array_start = .);
|
|
KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
|
|
KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
|
|
/* Required by pico-exitprocs.c. */
|
|
KEEP (*(.fini_array*))
|
|
PROVIDE (__fini_array_end = .);
|
|
} >iwram AT>ewram
|
|
|
|
.ctors :
|
|
{
|
|
/* gcc uses crtbegin.o to find the start of
|
|
the constructors, so we make sure it is
|
|
first. Because this is a wildcard, it
|
|
doesn't matter if the user does not
|
|
actually link against crtbegin.o; the
|
|
linker won't look for a file to match a
|
|
wildcard. The wildcard also means that it
|
|
doesn't matter which directory crtbegin.o
|
|
is in. */
|
|
KEEP (*crtbegin.o(.ctors))
|
|
KEEP (*crtbegin?.o(.ctors))
|
|
/* We don't want to include the .ctor section from
|
|
the crtend.o file until after the sorted ctors.
|
|
The .ctor section from the crtend file contains the
|
|
end of ctors marker and it must be last */
|
|
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
|
|
KEEP (*(SORT(.ctors.*)))
|
|
KEEP (*(.ctors))
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >iwram AT>ewram
|
|
|
|
.dtors :
|
|
{
|
|
KEEP (*crtbegin.o(.dtors))
|
|
KEEP (*crtbegin?.o(.dtors))
|
|
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
|
|
KEEP (*(SORT(.dtors.*)))
|
|
KEEP (*(.dtors))
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >iwram AT>ewram
|
|
|
|
.eh_frame :
|
|
{
|
|
KEEP (*(.eh_frame))
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >iwram AT>ewram
|
|
|
|
.gcc_except_table :
|
|
{
|
|
*(.gcc_except_table .gcc_except_table.*)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
} >iwram AT>ewram
|
|
.got : { *(.got.plt) *(.got) } >iwram AT>ewram
|
|
|
|
.data ALIGN(4) : {
|
|
__data_start = ABSOLUTE(.);
|
|
*(.data)
|
|
*(.data.*)
|
|
*(.gnu.linkonce.d*)
|
|
CONSTRUCTORS
|
|
. = ALIGN(4);
|
|
} >iwram AT>ewram
|
|
|
|
.tdata ALIGN(4) :
|
|
{
|
|
__tdata_start = ABSOLUTE(.);
|
|
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
__tdata_end = ABSOLUTE(.);
|
|
__data_end = . ;
|
|
} >iwram AT>ewram
|
|
|
|
__tdata_size = __tdata_end - __tdata_start ;
|
|
|
|
.tbss ALIGN(4) (NOLOAD) :
|
|
{
|
|
__tbss_start = ABSOLUTE(.);
|
|
*(.tbss .tbss.* .gnu.linkonce.tb.*)
|
|
*(.tcommon)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
__tbss_end = ABSOLUTE(.);
|
|
} >iwram AT>ewram
|
|
|
|
__tbss_size = __tbss_end - __tbss_start ;
|
|
|
|
.bss ALIGN(4) (NOLOAD) :
|
|
{
|
|
__arm7_end__ = .;
|
|
__bss_start = ABSOLUTE(.);
|
|
__bss_start__ = ABSOLUTE(.);
|
|
*(.dynbss)
|
|
*(.gnu.linkonce.b*)
|
|
*(.bss*)
|
|
*(COMMON)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
__bss_end__ = ABSOLUTE(.);
|
|
} >iwram
|
|
|
|
.noinit (NOLOAD):
|
|
{
|
|
__noinit_start = ABSOLUTE(.);
|
|
*(.noinit .noinit.* .gnu.linkonce.n.*)
|
|
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
|
|
__noinit_end = ABSOLUTE(.);
|
|
} >iwram
|
|
|
|
/* Space reserved for the thread local storage of main() */
|
|
.tls ALIGN(4) (NOLOAD) :
|
|
{
|
|
__tls_start = ABSOLUTE(.);
|
|
. = . + __tdata_size + __tbss_size;
|
|
__tls_end = ABSOLUTE(.);
|
|
__end__ = ABSOLUTE(.);
|
|
} >iwram
|
|
|
|
__tls_size = __tls_end - __tls_start;
|
|
|
|
HIDDEN(__arm7_size__ = __arm7_end__ - __arm7_start__);
|
|
HIDDEN(__arm7i_size__ = __arm7i_end__ - __arm7i_start__);
|
|
HIDDEN(__bss_size__ = __bss_end__ - __bss_start__);
|
|
HIDDEN(__twl_bss_size__ = __twl_bss_end__ - __twl_bss_start__);
|
|
|
|
/* Stabs debugging sections. */
|
|
.stab 0 : { *(.stab) }
|
|
.stabstr 0 : { *(.stabstr) }
|
|
.stab.excl 0 : { *(.stab.excl) }
|
|
.stab.exclstr 0 : { *(.stab.exclstr) }
|
|
.stab.index 0 : { *(.stab.index) }
|
|
.stab.indexstr 0 : { *(.stab.indexstr) }
|
|
.comment 0 (INFO) : { *(.comment); LINKER_VERSION; }
|
|
.gnu.build.attributes : { *(.gnu.build.attributes .gnu.build.attributes.*) }
|
|
/* DWARF debug sections.
|
|
Symbols in the DWARF debugging sections are relative to the beginning
|
|
of the section so we begin them at 0. */
|
|
/* DWARF 1. */
|
|
.debug 0 : { *(.debug) }
|
|
.line 0 : { *(.line) }
|
|
/* GNU DWARF 1 extensions. */
|
|
.debug_srcinfo 0 : { *(.debug_srcinfo) }
|
|
.debug_sfnames 0 : { *(.debug_sfnames) }
|
|
/* DWARF 1.1 and DWARF 2. */
|
|
.debug_aranges 0 : { *(.debug_aranges) }
|
|
.debug_pubnames 0 : { *(.debug_pubnames) }
|
|
/* DWARF 2. */
|
|
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
|
.debug_abbrev 0 : { *(.debug_abbrev) }
|
|
.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end) }
|
|
.debug_frame 0 : { *(.debug_frame) }
|
|
.debug_str 0 : { *(.debug_str) }
|
|
.debug_loc 0 : { *(.debug_loc) }
|
|
.debug_macinfo 0 : { *(.debug_macinfo) }
|
|
/* SGI/MIPS DWARF 2 extensions. */
|
|
.debug_weaknames 0 : { *(.debug_weaknames) }
|
|
.debug_funcnames 0 : { *(.debug_funcnames) }
|
|
.debug_typenames 0 : { *(.debug_typenames) }
|
|
.debug_varnames 0 : { *(.debug_varnames) }
|
|
/* DWARF 3. */
|
|
.debug_pubtypes 0 : { *(.debug_pubtypes) }
|
|
.debug_ranges 0 : { *(.debug_ranges) }
|
|
/* DWARF 5. */
|
|
.debug_addr 0 : { *(.debug_addr) }
|
|
.debug_line_str 0 : { *(.debug_line_str) }
|
|
.debug_loclists 0 : { *(.debug_loclists) }
|
|
.debug_macro 0 : { *(.debug_macro) }
|
|
.debug_names 0 : { *(.debug_names) }
|
|
.debug_rnglists 0 : { *(.debug_rnglists) }
|
|
.debug_str_offsets 0 : { *(.debug_str_offsets) }
|
|
.debug_sup 0 : { *(.debug_sup) }
|
|
.ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }
|
|
.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
|
|
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
|
|
}
|