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67790d3787
The stage3b loader memory layout must not be larger than 0x10000 bytes. Let's check this in the linker script. Reviewed-by: Steffen Eiden <seiden@linux.ibm.com> Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
84 lines
1.6 KiB
ArmAsm
84 lines
1.6 KiB
ArmAsm
/*
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* Memory layout for stage 3b
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* ==========================
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*
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* General memory layout
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* ---------------------
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*
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* 0x00000 - 0x01fff Lowcore
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* 0x02000 - 0x05fff Memory allocation (heap)
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* 0x0a000 - 0x0efff Stage3b code
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* 0x0f000 - 0x0ffff Stack
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*/
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#include "stage3b.h"
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#include "common_memory_layout.h"
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OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
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OUTPUT_ARCH(s390:64-bit)
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ENTRY(_start)
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SECTIONS
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{
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. = HEAP_ADDRESS;
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__heap_start = .;
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.heap : {
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. = . + HEAP_SIZE;
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ASSERT(__heap_stop - __heap_start == HEAP_SIZE,
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"Heap section doesn't conform to the described memory layout");
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}
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__heap_stop = .;
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. = STAGE3B_ENTRY;
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.text : {
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*(.text.start)
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*(.text .text.*)
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}
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.ex_table ALIGN(16) : {
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__ex_table_start = .;
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*(.ex_table)
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__ex_table_stop = .;
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}
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.bss ALIGN(16) : {
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__bss_start = .;
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*(.bss)
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__bss_stop = .;
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}
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.rodata ALIGN(16) : {
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*(.rodata)
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*(.rodata*)
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}
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.data ALIGN(16) : {
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*(.data)
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. = ALIGN(16);
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__loader_parms_start = .;
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KEEP(*(.loader_parms));
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__loader_parms_end = .;
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ASSERT(__loader_parms_end - __loader_parms_start == 3 * 16 + 16,
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"Data size must be equal to 'sizeof(struct stage3b_args)'");
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}
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. = STACK_ADDRESS;
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__stack_start = .;
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.stack : {
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. = . + STACK_SIZE;
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ASSERT(__stack_end - __stack_start == STACK_SIZE,
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"Stack section doesn't conform to the described memory layout");
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}
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__stack_end = .;
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ASSERT(. <= IMAGE_ENTRY, "stage3b size must be smaller than 0x10000 bytes")
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/* Sections to be discarded */
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/DISCARD/ : {
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*(.eh_frame)
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*(.interp)
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*(.note.GNU-stack)
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}
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}
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