-# Copyright (C) 2014-2016 Free Software Foundation, Inc.
-#
+# Copyright (C) 2014-2021 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) 2014-2016 Free Software Foundation, Inc.
+/* Copyright (C) 2014-2021 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})
+EOF
+test -n "${RELOCATING}" && cat <<EOF
__TEXT_REGION_LENGTH__ = DEFINED(__TEXT_REGION_LENGTH__) ? __TEXT_REGION_LENGTH__ : $TEXT_LENGTH;
__DATA_REGION_LENGTH__ = DEFINED(__DATA_REGION_LENGTH__) ? __DATA_REGION_LENGTH__ : $DATA_LENGTH;
-__EEPROM_REGION_LENGTH__ = DEFINED(__EEPROM_REGION_LENGTH__) ? __EEPROM_REGION_LENGTH__ : 64K;
-__FUSE_REGION_LENGTH__ = DEFINED(__FUSE_REGION_LENGTH__) ? __FUSE_REGION_LENGTH__ : 1K;
-__LOCK_REGION_LENGTH__ = DEFINED(__LOCK_REGION_LENGTH__) ? __LOCK_REGION_LENGTH__ : 1K;
-__SIGNATURE_REGION_LENGTH__ = DEFINED(__SIGNATURE_REGION_LENGTH__) ? __SIGNATURE_REGION_LENGTH__ : 1K;
-__USER_SIGNATURE_REGION_LENGTH__ = DEFINED(__USER_SIGNATURE_REGION_LENGTH__) ? __USER_SIGNATURE_REGION_LENGTH__ : 1K;
-
+${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_REGION_LENGTH__
data (rw!x) : ORIGIN = $DATA_ORIGIN, LENGTH = __DATA_REGION_LENGTH__
- eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__
- fuse (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
+${EEPROM_LENGTH+ eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__}
+ $FUSE_NAME (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
lock (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
- user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__
+${USER_SIGNATURE_LENGTH+ user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__}
}
+EOF
+cat <<EOF
SECTIONS
{
/* Read-only sections, merged into text segment: */
/* Internal text space or external memory. */
.text ${RELOCATING-0} :
{
- *(.vectors)
+ ${RELOCATING+*(.vectors)
KEEP(*(.vectors))
/* For data that needs to reside in the lower 64k of progmem. */
- ${RELOCATING+ *(.progmem.gcc*)}
+ *(.progmem.gcc*)
/* PR 13812: Placing the trampolines here gives a better chance
that they will be in range of the code that uses them. */
- ${RELOCATING+. = ALIGN(2);}
- ${CONSTRUCTING+ __trampolines_start = . ; }
+ . = ALIGN(2);
+ __trampolines_start = . ;
/* The jump trampolines for the 16-bit limited relocs will reside here. */
*(.trampolines)
- ${RELOCATING+ *(.trampolines*)}
- ${CONSTRUCTING+ __trampolines_end = . ; }
+ *(.trampolines*)
+ __trampolines_end = . ;
- ${RELOCATING+ *(.progmem*)}
-
- ${RELOCATING+. = ALIGN(2);}
+ /* avr-libc expects these data to reside in lower 64K. */
+ *libprintf_flt.a:*(.progmem.data)
+ *libc.a:*(.progmem.data)
+
+ *(.progmem.*)
- /* For future tablejump instruction arrays for 3 byte pc devices.
- We don't relax jump/call instructions within these sections. */
- *(.jumptables)
- ${RELOCATING+ *(.jumptables*)}
+ . = ALIGN(2);
/* For code that needs to reside in the lower 128k progmem. */
*(.lowtext)
- ${RELOCATING+ *(.lowtext*)}
+ *(.lowtext*)}
${CONSTRUCTING+ __ctors_start = . ; }
${CONSTRUCTING+ *(.ctors) }
${CONSTRUCTING+ __dtors_start = . ; }
${CONSTRUCTING+ *(.dtors) }
${CONSTRUCTING+ __dtors_end = . ; }
- KEEP(SORT(*)(.ctors))
+ ${RELOCATING+KEEP(SORT(*)(.ctors))
KEEP(SORT(*)(.dtors))
- /* From this point on, we don't bother about wether the insns are
+ /* From this point on, we do not bother about whether the insns are
below or above the 16 bits boundary. */
*(.init0) /* Start here after reset. */
KEEP (*(.init0))
*(.init8)
KEEP (*(.init8))
*(.init9) /* Call main(). */
- KEEP (*(.init9))
+ KEEP (*(.init9))}
*(.text)
- ${RELOCATING+. = ALIGN(2);}
- ${RELOCATING+ *(.text.*)}
- ${RELOCATING+. = ALIGN(2);}
+ ${RELOCATING+. = ALIGN(2);
+ *(.text.*)
+ . = ALIGN(2);
*(.fini9) /* _exit() starts here. */
KEEP (*(.fini9))
*(.fini8)
KEEP (*(.fini1))
*(.fini0) /* Infinite loop after program termination. */
KEEP (*(.fini0))
- ${RELOCATING+ _etext = . ; }
+
+ /* For code that needs not to reside in the lower progmem. */
+ *(.hightext)
+ *(.hightext*)
+
+ *(.progmemx.*)
+
+ . = ALIGN(2);
+
+ /* For tablejump instruction arrays. We do not relax
+ JMP / CALL instructions within these sections. */
+ *(.jumptables)
+ *(.jumptables*)
+
+ _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*)}
+ ${RELOCATING+ *(.data*)
+ *(.gnu.linkonce.d*)}
+EOF
+
+# Classical devices that don't show flash memory in the SRAM address space
+# need .rodata to be part of .data because the compiler will use LD*
+# instructions and LD* cannot access flash.
+
+if test -z "$RODATA_PM_OFFSET" && test -n "${RELOCATING}"; then
+ cat <<EOF
*(.rodata) /* We need to include .rodata here if gcc is used */
- ${RELOCATING+ *(.rodata*)} /* with -fdata-sections. */
- *(.gnu.linkonce.d*)
+ *(.rodata*) /* with -fdata-sections. */
+ *(.gnu.linkonce.r*)
+EOF
+fi
+
+cat <<EOF
${RELOCATING+. = ALIGN(2);}
${RELOCATING+ _edata = . ; }
${RELOCATING+ PROVIDE (__data_end = .) ; }
${RELOCATING+ PROVIDE (__bss_start = .) ; }
*(.bss)
${RELOCATING+ *(.bss*)}
- *(COMMON)
+ ${RELOCATING+ *(COMMON)}
${RELOCATING+ PROVIDE (__bss_end = .) ; }
} ${RELOCATING+ > data}
.noinit ${RELOCATING+ ADDR(.bss) + SIZEOF (.bss)} ${RELOCATING-0}: ${RELOCATING+ AT (ADDR (.noinit))}
{
${RELOCATING+ PROVIDE (__noinit_start = .) ; }
- *(.noinit*)
+ *(.noinit${RELOCATING+ .noinit.* .gnu.linkonce.n.*})
${RELOCATING+ PROVIDE (__noinit_end = .) ; }
${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(*(.fuse))
- KEEP(*(.lfuse))
+ ${RELOCATING+KEEP(*(.lfuse))
KEEP(*(.hfuse))
- KEEP(*(.efuse))
+ 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) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
- .note.gnu.build-id : { *(.note.gnu.build-id) }
+ .comment 0 : { *(.comment) }
+ .note.gnu.build-id ${RELOCATING-0} : { *(.note.gnu.build-id) }
EOF
. $srcdir/scripttempl/DWARF.sc
projects / thirdparty / binutils-gdb.git / blobdiff