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boardloader: simplify linker script (#27)

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mcudev 2017-10-09 11:43:38 -04:00 committed by Pavol Rusnak
parent fda9f584e8
commit b0c54e2a4b
1 changed files with 15 additions and 35 deletions
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50
embed/boardloader/memory.ld
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@ -3,15 +3,13 @@
ENTRY(reset_handler) ENTRY(reset_handler)
MEMORY { MEMORY {
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 32K
CCMRAM (wal) : ORIGIN = 0x10000000, LENGTH = 64K CCMRAM (wal) : ORIGIN = 0x10000000, LENGTH = 64K
SRAM (wal) : ORIGIN = 0x20000000, LENGTH = 128K /* note: the boardloader uses mostly CCMRAM */ SRAM (wal) : ORIGIN = 0x20000000, LENGTH = 128K
} }
main_stack_base = ORIGIN(CCMRAM) + LENGTH(CCMRAM); /* 8-byte aligned full descending stack */ main_stack_base = ORIGIN(CCMRAM) + LENGTH(CCMRAM); /* 8-byte aligned full descending stack */
minimum_stack_size = 4K; /* reserve a chunk for stack space */
/* used by the startup code to populate variables used by the C code */ /* used by the startup code to populate variables used by the C code */
data_lma = LOADADDR(.data); data_lma = LOADADDR(.data);
data_vma = ADDR(.data); data_vma = ADDR(.data);
@ -25,50 +23,32 @@ ccmram_end = ORIGIN(CCMRAM) + LENGTH(CCMRAM);
sram_start = ORIGIN(SRAM); sram_start = ORIGIN(SRAM);
sram_end = ORIGIN(SRAM) + LENGTH(SRAM); sram_end = ORIGIN(SRAM) + LENGTH(SRAM);
/* alignment references refer to sections in the ARM v7-M Architecture Reference Manual */
SECTIONS { SECTIONS {
.vector_table : ALIGN(512) { /* B1.5.3 and Table 61 of STM32F405 Reference Manual (RM0090) */ .vector_table : ALIGN(512) {
KEEP(*(.vector_table)) KEEP(*(.vector_table));
} >FLASH AT>FLASH } >FLASH AT>FLASH
.text : ALIGN(4) { /* A3.3.1 - needs at least 2 */ .text : ALIGN(4) {
KEEP(*(.text)) /* does not match all .text*, but influences their positioning */ *(.text*);
. = ALIGN(4); /* force the section to end on an word-aligned boundary */ . = ALIGN(4); /* make the section size a multiple of the word size */
} >FLASH AT>FLASH } >FLASH AT>FLASH
.rodata : ALIGN(4) { .rodata : ALIGN(4) {
KEEP(*(.rodata)) /* does not match all .rodata*, but influences their positioning */ *(.rodata*);
. = ALIGN(4); /* force the section to end on an word-aligned boundary */ . = ALIGN(4); /* make the section size a multiple of the word size */
} >FLASH AT>FLASH } >FLASH AT>FLASH
.data : ALIGN(4) { .data : ALIGN(4) {
KEEP(*(.data*)) /* combine all the .data* so that the startup code can copy it in all at once */ *(.data*);
. = ALIGN(4); /* force the section to end on an word-aligned boundary */ . = ALIGN(4); /* make the section size a multiple of the word size */
} >CCMRAM AT>FLASH } >CCMRAM AT>FLASH
.bss : ALIGN(4) { .bss : ALIGN(4) {
KEEP(*(.bss)) /* does not match all .bss*, but influences their positioning */ *(.bss*);
. = ALIGN(4); /* force the section to end on an word-aligned boundary */ . = ALIGN(4); /* make the section size a multiple of the word size */
} >CCMRAM } >CCMRAM
.stack : ALIGN(8) { /* B1.5.7 */ .stack : ALIGN(8) {
. += minimum_stack_size; . = 4K; /* this acts as a build time assertion that at least this much memory is available for stack use */
. = ALIGN(8); /* force the section to end on an double word-aligned boundary */
} >CCMRAM } >CCMRAM
/* todo: reduce unused stuff being linked and garbage collected */
/* requires moving code around and updating build scripts. */
/DISCARD/ : {
*/embed/extmod/modtrezorui/display.o (.text.get_glyph)
*/embed/extmod/modtrezorui/display.o (.text.display_image)
*/embed/extmod/modtrezorui/display.o (.text.display_avatar)
*/embed/extmod/modtrezorui/display.o (.text.display_icon)
*/embed/extmod/modtrezorui/display.o (.text.display_qrcode)
*/embed/extmod/modtrezorui/display.o (.text.display_loader)
*/embed/extmod/modtrezorui/display.o (.text.display_text)
*/embed/extmod/modtrezorui/display.o (.text.display_text_width)
*/embed/extmod/modtrezorui/display.o (.text.display_text_center)
*/embed/extmod/modtrezorui/display.o (.text.display_text_right)
}
} }