-# Copyright (C) 2014-2015 Free Software Foundation, Inc.
+# Copyright (C) 2014-2017 Free Software Foundation, Inc.
#
# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.
+# RODATA_PM_OFFSET
+# If empty, .rodata sections will be part of .data. This is for
+# devices where it is not possible to use LD* instructions to read
+# from flash.
+#
+# If non-empty, .rodata is not part of .data and the .rodata
+# objects are assigned addresses at an offest of RODATA_PM_OFFSET.
+# This is for devices that feature reading from flash by means of
+# LD* instructions, provided the addresses are offset by
+# __RODATA_PM_OFFSET__ (which defaults to RODATA_PM_OFFSET).
+
cat <<EOF
-/* Copyright (C) 2014-2015 Free Software Foundation, Inc.
+/* Copyright (C) 2014-2017 Free Software Foundation, Inc.
Copying and distribution of this script, with or without modification,
are permitted in any medium without royalty provided the copyright
OUTPUT_FORMAT("${OUTPUT_FORMAT}","${OUTPUT_FORMAT}","${OUTPUT_FORMAT}")
OUTPUT_ARCH(${ARCH})
+__TEXT_REGION_LENGTH__ = DEFINED(__TEXT_REGION_LENGTH__) ? __TEXT_REGION_LENGTH__ : $TEXT_LENGTH;
+__DATA_REGION_LENGTH__ = DEFINED(__DATA_REGION_LENGTH__) ? __DATA_REGION_LENGTH__ : $DATA_LENGTH;
+${EEPROM_LENGTH+__EEPROM_REGION_LENGTH__ = DEFINED(__EEPROM_REGION_LENGTH__) ? __EEPROM_REGION_LENGTH__ : $EEPROM_LENGTH;}
+__FUSE_REGION_LENGTH__ = DEFINED(__FUSE_REGION_LENGTH__) ? __FUSE_REGION_LENGTH__ : $FUSE_LENGTH;
+__LOCK_REGION_LENGTH__ = DEFINED(__LOCK_REGION_LENGTH__) ? __LOCK_REGION_LENGTH__ : $LOCK_LENGTH;
+__SIGNATURE_REGION_LENGTH__ = DEFINED(__SIGNATURE_REGION_LENGTH__) ? __SIGNATURE_REGION_LENGTH__ : $SIGNATURE_LENGTH;
+${USER_SIGNATURE_LENGTH+__USER_SIGNATURE_REGION_LENGTH__ = DEFINED(__USER_SIGNATURE_REGION_LENGTH__) ? __USER_SIGNATURE_REGION_LENGTH__ : $USER_SIGNATURE_LENGTH;}
+${RODATA_PM_OFFSET+__RODATA_PM_OFFSET__ = DEFINED(__RODATA_PM_OFFSET__) ? __RODATA_PM_OFFSET__ : $RODATA_PM_OFFSET;}
MEMORY
{
- text (rx) : ORIGIN = 0, LENGTH = $TEXT_LENGTH
- data (rw!x) : ORIGIN = $DATA_ORIGIN, LENGTH = $DATA_LENGTH
- eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 64K
- fuse (rw!x) : ORIGIN = 0x820000, LENGTH = 1K
- lock (rw!x) : ORIGIN = 0x830000, LENGTH = 1K
- signature (rw!x) : ORIGIN = 0x840000, LENGTH = 1K
+ text (rx) : ORIGIN = 0, LENGTH = __TEXT_REGION_LENGTH__
+ data (rw!x) : ORIGIN = $DATA_ORIGIN, LENGTH = __DATA_REGION_LENGTH__
+${EEPROM_LENGTH+ eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__}
+ $FUSE_NAME (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
+ lock (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
+ signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
+${USER_SIGNATURE_LENGTH+ user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__}
}
SECTIONS
${RELOCATING+ *(.trampolines*)}
${CONSTRUCTING+ __trampolines_end = . ; }
- ${RELOCATING+ *(.progmem*)}
+ /* avr-libc expects these data to reside in lower 64K. */
+ ${RELOCATING+ *libprintf_flt.a:*(.progmem.data)}
+ ${RELOCATING+ *libc.a:*(.progmem.data)}
+
+ ${RELOCATING+ *(.progmem.*)}
${RELOCATING+. = ALIGN(2);}
- /* For future tablejump instruction arrays for 3 byte pc devices.
- We don't relax jump/call instructions within these sections. */
- *(.jumptables)
- ${RELOCATING+ *(.jumptables*)}
-
/* For code that needs to reside in the lower 128k progmem. */
*(.lowtext)
${RELOCATING+ *(.lowtext*)}
KEEP (*(.fini1))
*(.fini0) /* Infinite loop after program termination. */
KEEP (*(.fini0))
+
+ /* For code that needs not to reside in the lower progmem. */
+ *(.hightext)
+ ${RELOCATING+ *(.hightext*)}
+
+ ${RELOCATING+ *(.progmemx.*)}
+
+ ${RELOCATING+. = ALIGN(2);}
+
+ /* For tablejump instruction arrays. We don't relax
+ JMP / CALL instructions within these sections. */
+ *(.jumptables)
+ ${RELOCATING+ *(.jumptables*)}
+
${RELOCATING+ _etext = . ; }
} ${RELOCATING+ > text}
+EOF
+
+# Devices like ATtiny816 allow to read from flash memory by means of LD*
+# instructions provided we add an offset of __RODATA_PM_OFFSET__ to the
+# flash addresses.
+
+if test -n "$RODATA_PM_OFFSET"; then
+ cat <<EOF
+ .rodata ${RELOCATING+ ADDR(.text) + SIZEOF (.text) + __RODATA_PM_OFFSET__ } ${RELOCATING-0} :
+ {
+ *(.rodata)
+ ${RELOCATING+ *(.rodata*)}
+ *(.gnu.linkonce.r*)
+ } ${RELOCATING+AT> text}
+EOF
+fi
+cat <<EOF
.data ${RELOCATING-0} :
{
${RELOCATING+ PROVIDE (__data_start = .) ; }
*(.data)
${RELOCATING+ *(.data*)}
+ *(.gnu.linkonce.d*)
+EOF
+
+# Classical devices that don't show flash memory in the SRAM address space
+# need .rodata to be part of .data because the compiler will use LD*
+# instructions and LD* cannot access flash.
+
+if test -z "$RODATA_PM_OFFSET"; then
+ cat <<EOF
*(.rodata) /* We need to include .rodata here if gcc is used */
${RELOCATING+ *(.rodata*)} /* with -fdata-sections. */
- *(.gnu.linkonce.d*)
+ *(.gnu.linkonce.r*)
+EOF
+fi
+
+cat <<EOF
${RELOCATING+. = ALIGN(2);}
${RELOCATING+ _edata = . ; }
${RELOCATING+ PROVIDE (__data_end = .) ; }
${RELOCATING+ __data_load_end = __data_load_start + SIZEOF(.data); }
/* Global data not cleared after reset. */
- .noinit ${RELOCATING-0}:
+ .noinit ${RELOCATING+ ADDR(.bss) + SIZEOF (.bss)} ${RELOCATING-0}: ${RELOCATING+ AT (ADDR (.noinit))}
{
${RELOCATING+ PROVIDE (__noinit_start = .) ; }
*(.noinit*)
${RELOCATING+ _end = . ; }
${RELOCATING+ PROVIDE (__heap_start = .) ; }
} ${RELOCATING+ > data}
+EOF
+
+if test -n "${EEPROM_LENGTH}"; then
+cat <<EOF
.eeprom ${RELOCATING-0}:
{
KEEP(*(.eeprom*))
${RELOCATING+ __eeprom_end = . ; }
} ${RELOCATING+ > eeprom}
+EOF
+fi
+
+if test "$FUSE_NAME" = "fuse" ; then
+cat <<EOF
.fuse ${RELOCATING-0}:
{
KEEP(*(.hfuse))
KEEP(*(.efuse))
} ${RELOCATING+ > fuse}
+EOF
+fi
+
+cat <<EOF
.lock ${RELOCATING-0}:
{
{
KEEP(*(.signature*))
} ${RELOCATING+ > signature}
+EOF
+
+if test "$FUSE_NAME" = "config" ; then
+cat <<EOF
+
+ .config ${RELOCATING-0}:
+ {
+ KEEP(*(.config*))
+ } ${RELOCATING+ > config}
+EOF
+fi
+
+cat <<EOF
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
projects / binutils-gdb.git / blobdiff