freedom/bootrom/sdboot/linker/sdboot.elf.lds

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2017-08-19 03:21:04 +02:00
OUTPUT_ARCH("riscv")
ENTRY(_prog_start)
INCLUDE memory.lds
PHDRS
{
text PT_LOAD;
data PT_LOAD;
bss PT_LOAD;
}
SECTIONS
{
PROVIDE(_ram = ORIGIN(memory_mem));
PROVIDE(_ram_end = _ram + LENGTH(memory_mem));
.text ALIGN((ORIGIN(maskrom_mem) + 0x0), 8) : AT(ALIGN((ORIGIN(maskrom_mem) + 0x0), 8)) {
PROVIDE(_ftext = .);
*(.text.init)
*(.text.unlikely .text.unlikely.*)
*(.text .text.* .gnu.linkonce.t.*)
PROVIDE(_etext = .);
. += 0x40; /* to create a gap between .text and .data b/c ifetch can fetch ahead from .data */
} >maskrom_mem :text
.eh_frame ALIGN((ADDR(.text) + SIZEOF(.text)), 8) : AT(ALIGN((LOADADDR(.text) + SIZEOF(.text)), 8)) {
*(.eh_frame)
} >maskrom_mem :text
.rodata ALIGN((ADDR(.eh_frame) + SIZEOF(.eh_frame)), 8) : AT(ALIGN((LOADADDR(.eh_frame) + SIZEOF(.eh_frame)), 8)) ALIGN_WITH_INPUT {
*(.rodata .rodata.* .gnu.linkonce.r.*)
} >maskrom_mem :data
.srodata ALIGN((ADDR(.rodata) + SIZEOF(.rodata)), 8) : AT(ALIGN((LOADADDR(.rodata) + SIZEOF(.rodata)), 8)) ALIGN_WITH_INPUT {
*(.srodata.cst16)
*(.srodata.cst8)
*(.srodata.cst4)
*(.srodata.cst2)
*(.srodata.*)
} >maskrom_mem :data
.data ALIGN((ADDR(.srodata) + SIZEOF(.srodata)), 8) : AT(ALIGN((LOADADDR(.srodata) + SIZEOF(.srodata)), 8)) ALIGN_WITH_INPUT {
*(.data .data.* .gnu.linkonce.d.*)
*(.tohost) /* TODO: Support sections that aren't explicitly listed in this linker script */
} >maskrom_mem :data
.sdata ALIGN((ADDR(.data) + SIZEOF(.data)), 8) : AT(ALIGN((LOADADDR(.data) + SIZEOF(.data)), 8)) ALIGN_WITH_INPUT {
*(.sdata .sdata.* .gnu.linkonce.s.*)
} >maskrom_mem :data
PROVIDE(_data = ADDR(.rodata));
PROVIDE(_data_lma = LOADADDR(.rodata));
PROVIDE(_edata = .);
.bss ALIGN((ORIGIN(memory_mem) + 0x0), 8) : AT(ALIGN((ORIGIN(memory_mem) + 0x0), 8)) ALIGN(8) {
PROVIDE(_fbss = .);
PROVIDE(__global_pointer$ = . + 0x7C0);
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.bss .bss.* .gnu.linkonce.b.*)
. = ALIGN(8);
PROVIDE(_ebss = .);
} >memory_mem :bss
PROVIDE(_end = .);
/*
* heap_stack_region_usable_end: (ORIGIN(memory_mem) + LENGTH(memory_mem))
* heap_stack_min_size: 4096
* heap_stack_max_size: 1048576
*/
PROVIDE(_sp = ALIGN(MIN((ORIGIN(memory_mem) + LENGTH(memory_mem)), _ebss + 1048576) - 7, 8));
PROVIDE(_heap_end = _sp - 2048);
/* This section is a noop and is only used for the ASSERT */
.stack : {
ASSERT(_sp >= (_ebss + 4096), "Error: No room left for the heap and stack");
}
}