184 lines
No EOL
3.4 KiB
Text
184 lines
No EOL
3.4 KiB
Text
/*
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* Universalisos Linker Script
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* PikeOS 5.0 Feature Parity - Memory Layout Definition
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*
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* Defines memory regions for ARM and RISC-V architectures
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* with proper alignment and section placement for safety-critical systems.
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*/
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/*
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* Entry point
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*/
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ENTRY(kernel_main)
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/*
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* Memory regions for QEMU virt machine
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*/
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MEMORY
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{
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/* QEMU virt machine memory layout */
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RAM (rwxai) : ORIGIN = 0x40000000, LENGTH = 128M
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FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 64M
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}
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/*
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* Stack sizes
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*/
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__stack_size = 0x4000; /* 16KB stack */
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__irq_stack_size = 0x1000; /* 4KB IRQ stack */
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__fiq_stack_size = 0x1000; /* 4KB FIQ stack */
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__system_stack_size = 0x2000; /* 8KB system stack */
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/*
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* Heap configuration
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*/
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__heap_start = 0x60000000;
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__heap_end = 0x60800000; /* 8MB heap */
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__heap_size = __heap_end - __heap_start;
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/*
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* Section definitions
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*/
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SECTIONS
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{
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/*
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* Exception vector table (must be at offset 0x00000000)
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*/
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.vectors : {
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. = ALIGN(4);
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KEEP(*(.text.vectors))
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. = ALIGN(4);
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} > FLASH
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/*
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* Code and read-only data
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*/
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.text : {
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. = ALIGN(4);
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*(.text)
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*(.text*)
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*(.rodata)
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*(.rodata*)
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. = ALIGN(4);
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} > RAM AT> FLASH
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/*
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* Constructor and destructor tables
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*/
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.ctors : {
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. = ALIGN(4);
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__ctor_start = .;
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KEEP(*(.ctors))
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KEEP(*(SORT(.ctors.*)))
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__ctor_end = .;
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. = ALIGN(4);
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} > RAM
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.dtors : {
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. = ALIGN(4);
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__dtor_start = .;
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KEEP(*(.dtors))
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KEEP(*(SORT(.dtors.*)))
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__dtor_end = .;
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. = ALIGN(4);
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} > RAM
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/*
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* Exception vectors (data section)
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*/
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.data : {
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. = ALIGN(4);
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*(.data)
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*(.data*)
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. = ALIGN(4);
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} > RAM
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/*
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* KDEV driver descriptors (self-registered via UOS_DRV_REGISTER)
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*/
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.uos_drv : {
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__uos_drv_start = .;
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KEEP(*(.uos_drv))
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__uos_drv_end = .;
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} > RAM
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/*
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* Embedded configuration manifest (config/cfg_blob.S .incbin)
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*/
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.uoscfg : {
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. = ALIGN(4);
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_uos_cfg_start = .;
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KEEP(*(.uoscfg))
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. = ALIGN(4);
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_uos_cfg_end = .;
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} > RAM
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/*
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* BSS section (zero-initialized data)
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*/
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.bss : {
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. = ALIGN(4);
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__bss_start = .;
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*(.bss)
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*(.bss*)
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*(COMMON)
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. = ALIGN(4);
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__bss_end = .;
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} > RAM
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/*
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* Stack definitions
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*/
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.stack : {
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. = ALIGN(16);
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. = . + __stack_size;
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__stack_top = .;
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} > RAM
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.irq_stack : {
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. = ALIGN(16);
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. = . + __irq_stack_size;
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__irq_stack_top = .;
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} > RAM
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.fiq_stack : {
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. = ALIGN(16);
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. = . + __fiq_stack_size;
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__fiq_stack_top = .;
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} > RAM
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.system_stack : {
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. = ALIGN(16);
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. = . + __system_stack_size;
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__system_stack_top = .;
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} > RAM
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/*
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* Heap definition
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*/
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.heap : {
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. = ALIGN(8);
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__heap_start = .;
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. = . + __heap_size;
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__heap_end = .;
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. = ALIGN(8);
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} > RAM
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/*
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* Debug sections
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*/
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/DISCARD/ : {
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*(.comment)
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*(.ARM.attributes)
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*(.note.*)
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}
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/*
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* Stack protection (optional for safety)
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*/
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.stack_protector : {
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. = ALIGN(8);
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__stack_chk_guard = .;
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. = . + 8;
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} > RAM
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} |