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exo2: reorganize to save >0x300 bytes and 0x100 of stack in main

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This commit is contained in:
Michael Scire 2020-05-13 18:10:54 -07:00 • committed by SciresM
parent ad664daea5
commit b7ff9e8fcc
10 changed files with 146 additions and 135 deletions
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31
exosphere2/program/program.ld
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@ -12,10 +12,10 @@ MEMORY
/* However, we can't know for sure how big warmboot is, so we'll just say it's 2K. */
warmboot_text : ORIGIN = ORIGIN(tzram) + 10K, LENGTH = 2K
main : ORIGIN = 0x1F00C0000, LENGTH = 48K
tzram_boot_code : ORIGIN = 0x1F01C0800, LENGTH = 6K
main : ORIGIN = 0x1F00C0000, LENGTH = 48K
tzram_boot : ORIGIN = 0x1F01C0000, LENGTH = 8K
glob : ORIGIN = 0x040032000, LENGTH = 64K
glob : ORIGIN = 0x040032000, LENGTH = 64K
}
SECTIONS
@ -88,6 +88,17 @@ SECTIONS
__bootcode_end__ = ABSOLUTE(.);
__program_start__ = ABSOLUTE(.);
.tzram_boot_volatile_data : {
KEEP (*(.volatile_keys .volatile_keys.*))
} >tzram_boot AT>glob
.tzram_boot_volatile_data.fill : {
FILL(0x00000000);
. = ORIGIN(tzram_boot) + 0x7FF;
BYTE(0x00);
} >tzram_boot AT>glob
.tzram_boot_code :
{
KEEP(secmon_main.o(.text*))
@ -96,23 +107,20 @@ SECTIONS
KEEP(secmon_boot_config.o(.text*))
KEEP(secmon_boot_setup.o(.text*))
KEEP(secmon_package2.o(.text*))
KEEP(secmon_key_data.o(.text*))
secmon_main.o(.rodata*)
secmon_boot_functions.o(.rodata*)
secmon_boot_cache.o(.rodata*)
secmon_boot_config.o(.rodata*)
secmon_boot_setup.o(.rodata*)
secmon_package2.o(.rodata*)
secmon_key_data.o(.rodata*)
secmon_main.o(.data*)
secmon_boot_functions.o(.data*)
secmon_boot_cache.o(.data*)
secmon_boot_config.o(.data*)
secmon_boot_setup.o(.data*)
secmon_package2.o(.data*)
secmon_key_data.o(.data*)
. = ALIGN(8);
} >tzram_boot_code AT>glob
} >tzram_boot AT>glob
.tzram_boot_code.bss :
{
@ -123,16 +131,15 @@ SECTIONS
secmon_boot_config.o(.bss* COMMON)
secmon_boot_setup.o(.bss* COMMON)
secmon_package2.o(.bss* COMMON)
secmon_key_data.o(.bss* COMMON)
__boot_bss_end__ = ABSOLUTE(.);
} >tzram_boot_code AT>glob
} >tzram_boot AT>glob
.tzram_boot_code.fill :
{
FILL(0x00000000);
. = ORIGIN(tzram_boot_code) + LENGTH(tzram_boot_code) - 1;
. = ORIGIN(tzram_boot) + LENGTH(tzram_boot) - 1;
BYTE(0x00);
} > tzram_boot_code AT>glob
} > tzram_boot AT>glob
.vectors :
{
@ -155,7 +162,7 @@ SECTIONS
KEEP(tsec_*.o(.data*))
} >warmboot_text AT>glob
.text :
.text ORIGIN(main) + SIZEOF(.vectors) + SIZEOF(.warmboot) :
{
*(.text.unlikely .text.*_unlikely .text.unlikely.*)
*(.text.exit .text.exit.*)