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Alessandro Rubini authored
If the Kconfig option is not set, there's no effect on code size. If set, .bss increases by 256 bytes (the buffer) and .text by another 200 bytes. This adds timestamping support, so we know the duration of the interrupt (because we found it's an important thing when problems occur). Signed-off-by:
Alessandro Rubini <rubini@gnudd.com>
68ebc2e8
ram.ld.S 2.12 KiB
/*
* Link script for Lattice Mico32. Very loosely based on
* code contributed by Jon Beniston <jon@beniston.com>
*
* Jon's license (BSD-style):
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
OUTPUT_FORMAT("elf32-lm32")
ENTRY(_start)
MEMORY
{
ram :
ORIGIN = 0x00000000,
LENGTH = CONFIG_RAMSIZE - CONFIG_STACKSIZE
stack :
ORIGIN = CONFIG_RAMSIZE - CONFIG_STACKSIZE,
LENGTH = CONFIG_STACKSIZE
}
SECTIONS
{
.boot : { *(.boot) } > ram
.text : { *(.text .text.*) } > ram =0
.rodata : { *(.rodata .rodata.*) } > ram
.data : {
*(.data .data.*)
*(.stats)
} > ram
.bss : {
_fbss = .;
*(.bss .bss.*)
*(COMMON)
_ebss = .;
} > ram
/* End of RAM for checking stack overflows */
PROVIDE(_endram = ORIGIN(stack));
/* First location in stack is highest address in STACK */
PROVIDE(_fstack = ORIGIN(stack) + LENGTH(stack) - 4);
/* This may be missing, according to .config */
PROVIDE(fifo_log = 0);
}