binutils-gdb/ld/scripttempl/elf32msp430.sc
Nick Clifton 0d832c8ea7 Provide the __bssstart and __bsssize symbols needed by the MSP430's crt0.o code.
PR target/20134
	* scripttempl/elf32msp430.sc (.bss): Provide __bssstart and
	__bsssize.
	* scripttempl/elf32msp430_3.sc (.bss): Likewise.
2016-05-26 11:43:38 +01:00

336 lines
9.6 KiB
Scala

# Copyright (C) 2014-2016 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.
HEAP_SECTION_MSP430=" "
HEAP_MEMORY_MSP430=" "
if test ${GOT_HEAP_MSP-0} -ne 0
then
HEAP_SECTION_MSP430=".heap ${RELOCATING-0} :
{
${RELOCATING+ PROVIDE (__heap_data_start = .) ; }
*(.heap*)
${RELOCATING+ PROVIDE (_heap_data_end = .) ; }
${RELOCATING+. = ALIGN(2);}
${RELOCATING+ PROVIDE (__heap_bottom = .) ; }
${RELOCATING+ PROVIDE (__heap_top = ${HEAP_START} + ${HEAP_LENGTH}) ; }
} ${RELOCATING+ > heap}"
HEAP_MEMORY_MSP430="heap(rwx) : ORIGIN = $HEAP_START, LENGTH = $HEAP_LENGTH"
fi
cat <<EOF
/* Copyright (C) 2014-2016 Free Software Foundation, Inc.
Copying and distribution of this script, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. */
OUTPUT_FORMAT("${OUTPUT_FORMAT}","${OUTPUT_FORMAT}","${OUTPUT_FORMAT}")
OUTPUT_ARCH(${ARCH})
MEMORY
{
text (rx) : ORIGIN = $ROM_START, LENGTH = $ROM_SIZE
data (rwx) : ORIGIN = $RAM_START, LENGTH = $RAM_SIZE
vectors (rw) : ORIGIN = 0xffe0, LENGTH = 0x20
bootloader(rx) : ORIGIN = 0x0c00, LENGTH = 1K
infomem(rx) : ORIGIN = 0x1000, LENGTH = 256
infomemnobits(rx) : ORIGIN = 0x1000, LENGTH = 256
${HEAP_MEMORY_MSP430}
}
SECTIONS
{
/* Bootloader. */
.bootloader ${RELOCATING-0} :
{
${RELOCATING+ PROVIDE (__boot_start = .) ; }
*(.bootloader)
${RELOCATING+. = ALIGN(2);}
*(.bootloader.*)
} ${RELOCATING+ > bootloader}
/* Information memory. */
.infomem ${RELOCATING-0} :
{
*(.infomem)
${RELOCATING+. = ALIGN(2);}
*(.infomem.*)
} ${RELOCATING+ > infomem}
/* Information memory (not loaded into MPU). */
.infomemnobits ${RELOCATING-0} :
{
*(.infomemnobits)
${RELOCATING+. = ALIGN(2);}
*(.infomemnobits.*)
} ${RELOCATING+ > infomemnobits}
/* Read-only sections, merged into text segment. */
${TEXT_DYNAMIC+${DYNAMIC}}
.hash ${RELOCATING-0} : { *(.hash) }
.dynsym ${RELOCATING-0} : { *(.dynsym) }
.dynstr ${RELOCATING-0} : { *(.dynstr) }
.gnu.version ${RELOCATING-0} : { *(.gnu.version) }
.gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) }
.gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) }
.rel.init ${RELOCATING-0} : { *(.rel.init) }
.rela.init ${RELOCATING-0} : { *(.rela.init) }
.rel.text ${RELOCATING-0} :
{
*(.rel.text)
${RELOCATING+*(.rel.text.*)}
${RELOCATING+*(.rel.gnu.linkonce.t*)}
}
.rela.text ${RELOCATING-0} :
{
*(.rela.text)
${RELOCATING+*(.rela.text.*)}
${RELOCATING+*(.rela.gnu.linkonce.t*)}
}
.rel.fini ${RELOCATING-0} : { *(.rel.fini) }
.rela.fini ${RELOCATING-0} : { *(.rela.fini) }
.rel.rodata ${RELOCATING-0} :
{
*(.rel.rodata)
${RELOCATING+*(.rel.rodata.*)}
${RELOCATING+*(.rel.gnu.linkonce.r*)}
}
.rela.rodata ${RELOCATING-0} :
{
*(.rela.rodata)
${RELOCATING+*(.rela.rodata.*)}
${RELOCATING+*(.rela.gnu.linkonce.r*)}
}
.rel.data ${RELOCATING-0} :
{
*(.rel.data)
${RELOCATING+*(.rel.data.*)}
${RELOCATING+*(.rel.gnu.linkonce.d*)}
}
.rela.data ${RELOCATING-0} :
{
*(.rela.data)
${RELOCATING+*(.rela.data.*)}
${RELOCATING+*(.rela.gnu.linkonce.d*)}
}
.rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
.rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
.rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
.rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
.rel.got ${RELOCATING-0} : { *(.rel.got) }
.rela.got ${RELOCATING-0} : { *(.rela.got) }
.rel.bss ${RELOCATING-0} : { *(.rel.bss) }
.rela.bss ${RELOCATING-0} : { *(.rela.bss) }
.rel.plt ${RELOCATING-0} : { *(.rel.plt) }
.rela.plt ${RELOCATING-0} : { *(.rela.plt) }
/* Internal text space. */
.text :
{
${RELOCATING+. = ALIGN(2);}
*(SORT_NONE(.init))
*(SORT_NONE(.init0)) /* Start here after reset. */
*(SORT_NONE(.init1))
*(SORT_NONE(.init2)) /* Copy data loop */
*(SORT_NONE(.init3))
*(SORT_NONE(.init4)) /* Clear bss */
*(SORT_NONE(.init5))
*(SORT_NONE(.init6)) /* C++ constructors. */
*(SORT_NONE(.init7))
*(SORT_NONE(.init8))
*(SORT_NONE(.init9)) /* Call main(). */
${CONSTRUCTING+ __ctors_start = . ; }
${CONSTRUCTING+ *(.ctors) }
${CONSTRUCTING+ __ctors_end = . ; }
${CONSTRUCTING+ __dtors_start = . ; }
${CONSTRUCTING+ *(.dtors) }
${CONSTRUCTING+ __dtors_end = . ; }
${RELOCATING+. = ALIGN(2);}
*(.lower.text.* .lower.text)
${RELOCATING+. = ALIGN(2);}
*(.text)
${RELOCATING+. = ALIGN(2);}
*(.text.*)
${RELOCATING+. = ALIGN(2);}
*(.text:*)
*(.either.text.* .either.text)
${RELOCATING+. = ALIGN(2);}
*(SORT_NONE(.fini9))
*(SORT_NONE(.fini8))
*(SORT_NONE(.fini7))
*(SORT_NONE(.fini6)) /* C++ destructors. */
*(SORT_NONE(.fini5))
*(SORT_NONE(.fini4))
*(SORT_NONE(.fini3))
*(SORT_NONE(.fini2))
*(SORT_NONE(.fini1))
*(SORT_NONE(.fini0)) /* Infinite loop after program termination. */
*(SORT_NONE(.fini))
_etext = .;
} ${RELOCATING+ > text}
.rodata :
{
${RELOCATING+. = ALIGN(2);}
*(.lower.rodata.* .lower.rodata)
. = ALIGN(2);
*(.plt)
*(.rodata .rodata.* .gnu.linkonce.r.* .const .const:*)
*(.rodata1)
*(.either.rodata.*) *(.either.rodata)
*(.eh_frame_hdr)
KEEP (*(.eh_frame))
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
PROVIDE (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
/* gcc uses crtbegin.o to find the start of the constructors, so
we make sure it is first. Because this is a wildcard, it
doesn't matter if the user does not actually link against
crtbegin.o; the linker won't look for a file to match a
wildcard. The wildcard also means that it doesn't matter which
directory crtbegin.o is in. */
KEEP (*crtbegin*.o(.ctors))
/* We don't want to include the .ctor section from from the
crtend.o file until after the sorted ctors. The .ctor section
from the crtend file contains the end of ctors marker and it
must be last */
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
KEEP (*crtbegin*.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} ${RELOCATING+ > text}
.vectors ${RELOCATING-0}:
{
${RELOCATING+ PROVIDE (__vectors_start = .) ; }
*(.vectors*)
${RELOCATING+ _vectors_end = . ; }
} ${RELOCATING+ > vectors}
.data ${RELOCATING-0} :
{
${RELOCATING+ PROVIDE (__data_start = .) ; }
${RELOCATING+ PROVIDE (__datastart = .) ; }
${RELOCATING+. = ALIGN(2);}
KEEP (*(.jcr))
*(.data.rel.ro.local) *(.data.rel.ro*)
*(.dynamic)
${RELOCATING+. = ALIGN(2);}
*(.lower.data.* .lower.data)
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
KEEP (*(.gnu.linkonce.d.*personality*))
*(.data1)
*(.either.data.* .either.data)
*(.got.plt) *(.got)
${RELOCATING+. = ALIGN(2);}
*(.sdata .sdata.* .gnu.linkonce.s.*)
${RELOCATING+. = ALIGN(2);}
${RELOCATING+ _edata = . ; }
} ${RELOCATING+ > data ${RELOCATING+AT> text}}
__romdatastart = LOADADDR(.data);
__romdatacopysize = SIZEOF(.data);
.bss ${RELOCATING+ SIZEOF(.data) + ADDR(.data)} :
{
${RELOCATING+. = ALIGN(2);}
${RELOCATING+ PROVIDE (__bss_start = .); }
${RELOCATING+ PROVIDE (__bssstart = .); }
*(.lower.bss.* .lower.bss)
${RELOCATING+. = ALIGN(2);}
*(.bss)
*(.either.bss.* .either.bss)
*(COMMON)
${RELOCATING+ PROVIDE (__bss_end = .) ; }
} ${RELOCATING+ > data}
${RELOCATING+ PROVIDE (__bsssize = SIZEOF(.bss)); }
.noinit ${RELOCATING+ SIZEOF(.bss) + ADDR(.bss)} :
{
${RELOCATING+ PROVIDE (__noinit_start = .) ; }
*(.noinit)
${RELOCATING+ PROVIDE (__noinit_end = .) ; }
} ${RELOCATING+ > data}
.persistent ${RELOCATING+ SIZEOF(.noinit) + ADDR(.noinit)} :
{
${RELOCATING+ PROVIDE (__persistent_start = .) ; }
*(.persistent)
${RELOCATING+ PROVIDE (__persistent_end = .) ; }
} ${RELOCATING+ > data}
${RELOCATING+ _end = . ; }
${HEAP_SECTION_MSP430}
/* Stabs for profiling information*/
.profiler 0 : { *(.profiler) }
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
EOF
. $srcdir/scripttempl/DWARF.sc
cat <<EOF
.MSP430.attributes 0 :
{
KEEP (*(.MSP430.attributes))
KEEP (*(.gnu.attributes))
KEEP (*(__TI_build_attributes))
}
PROVIDE (__stack = ${STACK}) ;
PROVIDE (__data_start_rom = _etext) ;
PROVIDE (__data_end_rom = _etext + SIZEOF (.data)) ;
PROVIDE (__noinit_start_rom = _etext + SIZEOF (.data)) ;
PROVIDE (__noinit_end_rom = _etext + SIZEOF (.data) + SIZEOF (.noinit)) ;
PROVIDE (__subdevice_has_heap = ${GOT_HEAP_MSP-0}) ;
}
EOF