105 lines
2.5 KiB
Bash
105 lines
2.5 KiB
Bash
# This is for embedded products (no MMU) with ELF.
|
|
MACHINE=
|
|
SCRIPT_NAME=elf
|
|
TEMPLATE_NAME=elf32
|
|
|
|
# Symbols have underscore prepended.
|
|
OUTPUT_FORMAT="elf32-us-cris"
|
|
ARCH=cris
|
|
MAXPAGESIZE=32
|
|
ENTRY=__start
|
|
EMBEDDED=yes
|
|
ALIGNMENT=32
|
|
TEXT_START_ADDR=0
|
|
|
|
# Put crt0 for flash/eprom etc. in this section.
|
|
INITIAL_READONLY_SECTIONS='.startup : { KEEP(*(.startup)) }'
|
|
|
|
# Setting __Stext to . in TEXT_START_SYMBOLS doesn't get what we want
|
|
# most of the time, which is the start of all read-only sections;
|
|
# there's at least .startup and .init before it. We have to resort to
|
|
# trickery. Note that __Stext is always defined, not PROVIDE:d, since
|
|
# external tools look for it.
|
|
TEXT_START_SYMBOLS='__Stext = ADDR (.startup);'
|
|
|
|
# The __start dance is to get us through assumptions about entry
|
|
# symbols, and to clear _start for normal use with sane programs.
|
|
EXECUTABLE_SYMBOLS='
|
|
__start = DEFINED(__start) ? __start :
|
|
DEFINED(_start) ? _start :
|
|
DEFINED(start) ? start :
|
|
DEFINED(.startup) ? .startup + 2 : 2;
|
|
'
|
|
|
|
# Smuggle an "OTHER_TEXT_END_SYMBOLS" here.
|
|
OTHER_READONLY_SECTIONS="${RELOCATING+PROVIDE (__Etext = .);}"
|
|
DATA_START_SYMBOLS='PROVIDE (__Sdata = .);'
|
|
|
|
# Smuggle an "OTHER_DATA_END_SYMBOLS" here.
|
|
OTHER_SDATA_SECTIONS="${RELOCATING+PROVIDE (__Edata = .);}"
|
|
|
|
# If .bss does not immediately follow .data but has its own start
|
|
# address, we can't get to it with OTHER_BSS_SYMBOLS, neither can we
|
|
# use ADDR(.bss) there. Instead, we use the symbol support for the
|
|
# end symbol.
|
|
OTHER_BSS_END_SYMBOLS='
|
|
PROVIDE (__Ebss = .);
|
|
PROVIDE (__end = .);
|
|
__Sbss = ADDR (.bss);
|
|
PROVIDE (_bss_start = __Sbss);
|
|
'
|
|
|
|
INIT_START='
|
|
. = ALIGN(2);
|
|
___init__start = .;
|
|
PROVIDE (___do_global_ctors = .);
|
|
SHORT (0xe1fc); /* push srp */
|
|
SHORT (0xbe7e);
|
|
'
|
|
|
|
INIT_END='
|
|
SHORT (0x0d3e); /* jump [sp+] */
|
|
PROVIDE (__init__end = .);
|
|
PROVIDE (___init__end = .);
|
|
'
|
|
|
|
FINI_START='
|
|
. = ALIGN (2);
|
|
___fini__start = .;
|
|
PROVIDE (___do_global_dtors = .);
|
|
SHORT (0xe1fc); /* push srp */
|
|
SHORT (0xbe7e);
|
|
'
|
|
|
|
FINI_END='
|
|
SHORT (0x0d3e); /* jump [sp+] */
|
|
PROVIDE (__fini__end = .);
|
|
___fini__end = .;
|
|
'
|
|
|
|
CTOR_START='
|
|
PROVIDE (___ctors = .);
|
|
___elf_ctors_dtors_begin = .;
|
|
'
|
|
|
|
CTOR_END='
|
|
PROVIDE (___ctors_end = .);
|
|
'
|
|
|
|
DTOR_START='
|
|
PROVIDE (___dtors = .);
|
|
'
|
|
|
|
CTOR_END='
|
|
PROVIDE (___dtors_end = .);
|
|
___elf_ctors_dtors_end = .;
|
|
'
|
|
|
|
# Also add the other symbols provided for rsim/xsim and elinux.
|
|
OTHER_END_SYMBOLS='
|
|
PROVIDE (__Eall = .);
|
|
PROVIDE (__Endmem = 0x10000000);
|
|
PROVIDE (__Stacksize = 0);
|
|
'
|
|
NO_SMALL_DATA=yes
|