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Make BigBuf take dynamically the available space with a fixed (4K) stack

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This commit is contained in:
slurdge 2020-06-10 12:41:18 +02:00
commit c89fc81fcf
4 changed files with 35 additions and 16 deletions
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4
common_arm/ldscript.common
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@ -9,6 +9,8 @@ ms of the GNU GPL, version 2 or,
-----------------------------------------------------------------------------
*/
stacksize = DEFINED(stacksize) ? stacksize : 4K;
/* AT91SAM7S256 has 256k Flash and 64k RAM */
/* AT91SAM7S512 has 512k Flash and 64k RAM */
/* boot space = 8192bytes (0x2000) */
@ -19,6 +21,7 @@ MEMORY
bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
osimage : ORIGIN = 0x00102000, LENGTH = 512K - 0x2000 /* Place where the main OS will end up */
ram : ORIGIN = 0x00200000, LENGTH = 64K - 0x20 /* RAM, minus small common area */
stack : ORIGIN = 0x00200000 + 64K - 4K - 0x20, LENGTH = stacksize /* Stack */
commonarea : ORIGIN = 0x00200000 + 64K - 0x20, LENGTH = 0x20 /* Communication between bootloader and main OS */
}
@ -29,4 +32,5 @@ _bootrom_start = ORIGIN(bootphase1);
_bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2);
_flash_start = ORIGIN(bootphase1);
_flash_end = ORIGIN(osimage) + LENGTH(osimage);
_stack_start = ORIGIN(stack);
_stack_end = ORIGIN(ram) + LENGTH(ram) - 8;