mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-01-24 12:35:55 +08:00
64b63c2993
__{preinit,init,fini}_array_start symbols must be word aligned in
linker scripts. If the section preceding the __*_array_start symbol
has an odd size, then a NULL byte will be present between the start
symbol and the .*_array section itself, when the section gets
automatically word-aligned.
This results in a branch to an invalid address when the CRT startup
code tries to run through the functions listed in the array sections.
Some MSP430 linker scripts do not align the __*_array start symbols, so
this added warning will catch that problem and help the user avoid
the potential incorrect execution of the program.
ld/ChangeLog:
* emultempl/msp430.em (input_section_exists): New.
(check_array_section_alignment): New.
(gld${EMULATION_NAME}_finish): New.
* scripttempl/elf32msp430.sc: Add ALIGN directives before the
definition of __*_array_start symbols.
* testsuite/ld-msp430-elf/finiarray-warn.ld: New test.
* testsuite/ld-msp430-elf/finiarray-warn.r: New test.
* testsuite/ld-msp430-elf/initarray-nowarn.ld: New test.
* testsuite/ld-msp430-elf/initarray-warn.ld: New test.
* testsuite/ld-msp430-elf/initarray-warn.r: New test.
* testsuite/ld-msp430-elf/initarray.s: New test.
* testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests.
* testsuite/ld-msp430-elf/preinitarray-warn.ld: New test.
* testsuite/ld-msp430-elf/preinitarray-warn.r: New test.
356 lines
9.9 KiB
Scala
356 lines
9.9 KiB
Scala
# Copyright (C) 2014-2020 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 = $HEAP_LENGTH"
|
|
fi
|
|
|
|
|
|
cat <<EOF
|
|
/* Copyright (C) 2014-2020 Free Software Foundation, Inc.
|
|
|
|
Copying and distribution of this script, with or without modification,
|
|
are permitted in any medium without royalty provided the copyright
|
|
notice and this notice are preserved. */
|
|
|
|
OUTPUT_FORMAT("${OUTPUT_FORMAT}","${OUTPUT_FORMAT}","${OUTPUT_FORMAT}")
|
|
OUTPUT_ARCH(${ARCH})
|
|
|
|
EOF
|
|
|
|
test -n "${RELOCATING}" && cat <<EOF
|
|
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}
|
|
}
|
|
|
|
EOF
|
|
|
|
cat <<EOF
|
|
SECTIONS
|
|
{
|
|
/* Bootloader. */
|
|
.bootloader ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+ PROVIDE (__boot_start = .) ; }
|
|
*(.bootloader)
|
|
${RELOCATING+. = ALIGN(2);}
|
|
${RELOCATING+*(.bootloader.*)}
|
|
} ${RELOCATING+ > bootloader}
|
|
|
|
/* Information memory. */
|
|
.infomem ${RELOCATING-0} :
|
|
{
|
|
*(.infomem)
|
|
${RELOCATING+. = ALIGN(2);}
|
|
${RELOCATING+*(.infomem.*)}
|
|
} ${RELOCATING+ > infomem}
|
|
|
|
/* Information memory (not loaded into MPU). */
|
|
.infomemnobits ${RELOCATING-0} :
|
|
{
|
|
*(.infomemnobits)
|
|
${RELOCATING+. = ALIGN(2);}
|
|
${RELOCATING+*(.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-0} :
|
|
{
|
|
${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)
|
|
|
|
. = ALIGN(2);}
|
|
*(.text)
|
|
${RELOCATING+. = ALIGN(2);
|
|
*(.text.*)
|
|
. = ALIGN(2);
|
|
*(.text:*)
|
|
|
|
*(.either.text.* .either.text)
|
|
|
|
*(.upper.text.* .upper.text)
|
|
|
|
. = 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-0} :
|
|
{
|
|
${RELOCATING+. = ALIGN(2);
|
|
*(.lower.rodata.* .lower.rodata)
|
|
|
|
. = ALIGN(2);
|
|
*(.plt)}
|
|
*(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.* .const .const:*})
|
|
${RELOCATING+*(.rodata1)
|
|
|
|
*(.either.rodata.*) *(.either.rodata)
|
|
|
|
*(.upper.rodata.* .upper.rodata)
|
|
|
|
*(.eh_frame_hdr)
|
|
KEEP (*(.eh_frame))
|
|
|
|
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
|
|
|
|
. = ALIGN(2);
|
|
PROVIDE (__preinit_array_start = .);
|
|
KEEP (*(.preinit_array))
|
|
PROVIDE (__preinit_array_end = .);
|
|
|
|
. = ALIGN(2);
|
|
PROVIDE (__init_array_start = .);
|
|
KEEP (*(SORT(.init_array.*)))
|
|
KEEP (*(.init_array))
|
|
PROVIDE (__init_array_end = .);
|
|
|
|
. = ALIGN(2);
|
|
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+*})
|
|
${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)
|
|
|
|
. = ALIGN(2);
|
|
*(.lower.data.* .lower.data)}
|
|
|
|
*(.data)
|
|
${RELOCATING+*(.data.*)
|
|
*(.gnu.linkonce.d*)
|
|
KEEP (*(.gnu.linkonce.d.*personality*))
|
|
*(.data1)
|
|
|
|
*(.either.data.* .either.data)
|
|
|
|
*(.upper.data.* .upper.data)
|
|
|
|
*(.got.plt) *(.got)
|
|
. = ALIGN(2);
|
|
*(.sdata .sdata.* .gnu.linkonce.s.*)
|
|
. = ALIGN(2);
|
|
_edata = .;}
|
|
} ${RELOCATING+ > data AT> text}
|
|
|
|
${RELOCATING+__romdatastart = LOADADDR(.data);
|
|
__romdatacopysize = SIZEOF(.data);}
|
|
|
|
.bss ${RELOCATING-0}${RELOCATING+SIZEOF(.data) + ADDR(.data)} :
|
|
{
|
|
${RELOCATING+. = ALIGN(2);}
|
|
${RELOCATING+ PROVIDE (__bss_start = .); }
|
|
${RELOCATING+ PROVIDE (__bssstart = .);
|
|
*(.lower.bss.* .lower.bss)
|
|
. = ALIGN(2);}
|
|
*(.bss)
|
|
${RELOCATING+*(.either.bss.* .either.bss)
|
|
*(.upper.bss.* .upper.bss)
|
|
*(COMMON)
|
|
PROVIDE (__bss_end = .);}
|
|
} ${RELOCATING+ > data}
|
|
${RELOCATING+ PROVIDE (__bsssize = SIZEOF(.bss)); }
|
|
|
|
.noinit ${RELOCATING-0}${RELOCATING+SIZEOF(.bss) + ADDR(.bss)} :
|
|
{
|
|
${RELOCATING+ PROVIDE (__noinit_start = .) ; }
|
|
*(.noinit)
|
|
${RELOCATING+ PROVIDE (__noinit_end = .) ; }
|
|
} ${RELOCATING+ > data}
|
|
|
|
.persistent ${RELOCATING-0}${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
|
|
|
|
. $srcdir/scripttempl/DWARF.sc
|
|
|
|
test -n "${RELOCATING}" && 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
|
|
|
|
cat <<EOF
|
|
}
|
|
EOF
|