alex/agb
1
0
Fork 0
mirror of https://github.com/italicsjenga/agb.git synced 2024-12-23 08:11:33 +11:00
Code Issues Packages Projects Releases Wiki Activity

fixup the multiboot

Browse source
This commit is contained in:
Corwin 2023-10-17 21:54:54 +01:00
parent 8e547c6783
commit 0b747508a8
No known key found for this signature in database
9 changed files with 154 additions and 185 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
agb/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

3
agb/src/crt0.s
View file

@ -10,7 +10,8 @@ __start:
.fill 188, 1, 0 .fill 188, 1, 0
@ multiboot launch point @ multiboot launch point
b .Initialise_mb __mb_entry:
b .Initialise_mb
.byte 0 @ boot mode, BIOS overwrites this value .byte 0 @ boot mode, BIOS overwrites this value
.byte 0 @ slave ID number .byte 0 @ slave ID number

40
book/games/pong/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

40
examples/amplitude/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

40
examples/combo/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

40
examples/hyperspace-roll/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

40
examples/the-dungeon-puzzlers-lament/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

40
examples/the-purple-night/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)

40
template/gba_mb.ld
View file

@ -1,15 +1,19 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm) OUTPUT_ARCH(arm)
ENTRY(__start) ENTRY(__mb_entry)
EXTERN(__RUST_INTERRUPT_HANDLER) EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset) EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy) EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY { MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
} }
__text_start = ORIGIN(ewram); __text_start = ORIGIN(ewram);
@ -22,7 +26,7 @@ SECTIONS {
*(.crt0 .crt0*); *(.crt0 .crt0*);
*(.text .text*); *(.text .text*);
. = ALIGN(4); . = ALIGN(4);
} > rom } > ewram
__text_end = .; __text_end = .;
.rodata : { .rodata : {
@ -30,45 +34,37 @@ SECTIONS {
. = ALIGN(4); . = ALIGN(4);
} > ewram } > ewram
__iwram_rom_start = .;
.iwram : { .iwram : {
__iwram_data_start = ABSOLUTE(.);
*(.iwram .iwram.*); *(.iwram .iwram.*);
. = ALIGN(4); . = ALIGN(4);
*(.text_iwram .text_iwram.*); *(.text_iwram .text_iwram.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_data_end = ABSOLUTE(.);
} > iwram AT>ewram } > iwram AT>ewram
__iwram_data_start = ADDR(.iwram);
__iwram_rom_start = LOADADDR(.iwram);
__iwram_rom_length_halfwords = (SIZEOF(.iwram) + 1) / 2;
__iwram_end = __iwram_data_start + SIZEOF(.iwram);
. = __iwram_rom_start + (__iwram_data_end - __iwram_data_start);
__ewram_rom_start = .;
.ewram : { .ewram : {
__ewram_data_start = ABSOLUTE(.);
*(.ewram .ewram.*); *(.ewram .ewram.*);
. = ALIGN(4); . = ALIGN(4);
*(.data .data.*); *(.data .data.*);
. = ALIGN(4); . = ALIGN(4);
__ewram_data_end = ABSOLUTE(.); } > ewram
} > ewram AT>ewram __ewram_data_start = ADDR(.ewram);
__ewram_rom_start = LOADADDR(.ewram);
__ewram_rom_length_halfwords = (SIZEOF(.ewram) + 1) / 2;
.bss : { .bss : {
*(.bss .bss.*); *(.bss .bss.*);
. = ALIGN(4); . = ALIGN(4);
__iwram_end = ABSOLUTE(.); = ABSOLUTE(.);
} > iwram } > ewram
__iwram_rom_length_bytes = __iwram_data_end - __iwram_data_start; __ewram_data_end = __ewram_data_start + SIZEOF(.ewram) + SIZEOF(.bss);
__iwram_rom_length_halfwords = (__iwram_rom_length_bytes + 1) / 2;
__ewram_rom_length_bytes = __ewram_data_end - __ewram_data_start;
__ewram_rom_length_halfwords = (__ewram_rom_length_bytes + 1) / 2;
.shstrtab : { .shstrtab : {
*(.shstrtab) *(.shstrtab)