mirror of
https://github.com/openhwgroup/cva6.git
synced 2025-04-24 06:07:19 -04:00
311 lines
11 KiB
Text
311 lines
11 KiB
Text
/* Script for -z combreloc */
|
|
/* Copyright (C) 2014-2020 Free Software Foundation, Inc.
|
|
Copyright (C) 2019 ETH Zürich and University of Bologna
|
|
Copyright (C) 2020 OpenHW Group
|
|
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. */
|
|
|
|
/* This linker script is adapted from the default linker script for upstream
|
|
RISC-V GCC. It has been modified for use in verification of CORE-V cores.
|
|
*/
|
|
|
|
OUTPUT_FORMAT("elf32-littleriscv", "elf32-littleriscv",
|
|
"elf32-littleriscv")
|
|
OUTPUT_ARCH(riscv)
|
|
ENTRY(_start)
|
|
|
|
/* CORE-V */
|
|
MEMORY
|
|
{
|
|
/* Our testbench is a bit weird in that we initialize the RAM (thus
|
|
allowing initialized sections to be placed there). Infact we dump all
|
|
sections to ram. */
|
|
|
|
ram (rwxai) : ORIGIN = 0x00000000, LENGTH = 0x400000
|
|
dbg (rwxai) : ORIGIN = 0x1A110800, LENGTH = 0x1000
|
|
}
|
|
|
|
SECTIONS
|
|
{
|
|
/* CORE-V Debugger Code: This section address must be the same as the
|
|
DM_HaltAddress parameter in the RTL */
|
|
.debugger (ORIGIN(dbg)):
|
|
{
|
|
KEEP(*(.debugger));
|
|
} >dbg
|
|
.debugger_exception (0x1A111000):
|
|
{
|
|
KEEP(*(.debugger_exception));
|
|
} >dbg
|
|
/* Debugger Stack*/
|
|
.debugger_stack : ALIGN(16)
|
|
{
|
|
PROVIDE(__debugger_stack_start = .);
|
|
. = 0x80;
|
|
} >dbg
|
|
|
|
/* CORE-V: we want a fixed entry point */
|
|
PROVIDE(__boot_address = 0x80);
|
|
|
|
/* CORE-V: interrupt vectors */
|
|
.vectors (ORIGIN(ram)):
|
|
{
|
|
PROVIDE(__vector_start = .);
|
|
KEEP(*(.vectors));
|
|
} >ram
|
|
|
|
/* CORE-V: crt0 init code */
|
|
.init (__boot_address):
|
|
{
|
|
KEEP (*(SORT_NONE(.init)))
|
|
KEEP (*(.text.start))
|
|
} >ram
|
|
|
|
/* Read-only sections, merged into text segment: */
|
|
PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x10000)); . = SEGMENT_START("text-segment", 0x10000) + SIZEOF_HEADERS;
|
|
.interp : { *(.interp) } >ram
|
|
.note.gnu.build-id : { *(.note.gnu.build-id) } >ram
|
|
.hash : { *(.hash) } >ram
|
|
.gnu.hash : { *(.gnu.hash) } >ram
|
|
.dynsym : { *(.dynsym) } >ram
|
|
.dynstr : { *(.dynstr) } >ram
|
|
.gnu.version : { *(.gnu.version) } >ram
|
|
.gnu.version_d : { *(.gnu.version_d) } >ram
|
|
.gnu.version_r : { *(.gnu.version_r) } >ram
|
|
.rela.dyn :
|
|
{
|
|
*(.rela.init)
|
|
*(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
|
|
*(.rela.fini)
|
|
*(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
|
|
*(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
|
|
*(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
|
|
*(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
|
|
*(.rela.ctors)
|
|
*(.rela.dtors)
|
|
*(.rela.got)
|
|
*(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*)
|
|
*(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*)
|
|
*(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*)
|
|
*(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*)
|
|
*(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
|
|
PROVIDE_HIDDEN (__rela_iplt_start = .);
|
|
*(.rela.iplt)
|
|
PROVIDE_HIDDEN (__rela_iplt_end = .);
|
|
} >ram
|
|
.rela.plt :
|
|
{
|
|
*(.rela.plt)
|
|
} >ram
|
|
|
|
.plt : { *(.plt) }
|
|
.iplt : { *(.iplt) }
|
|
.text :
|
|
{
|
|
*(.text.unlikely .text.*_unlikely .text.unlikely.*)
|
|
*(.text.exit .text.exit.*)
|
|
*(.text.startup .text.startup.*)
|
|
*(.text.hot .text.hot.*)
|
|
*(SORT(.text.sorted.*))
|
|
*(.text .stub .text.* .gnu.linkonce.t.*)
|
|
/* .gnu.warning sections are handled specially by elf.em. */
|
|
*(.gnu.warning)
|
|
} >ram
|
|
.fini :
|
|
{
|
|
KEEP (*(SORT_NONE(.fini)))
|
|
} >ram
|
|
PROVIDE (__etext = .);
|
|
PROVIDE (_etext = .);
|
|
PROVIDE (etext = .);
|
|
.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } >ram
|
|
.rodata1 : { *(.rodata1) } >ram
|
|
.sdata2 :
|
|
{
|
|
*(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
|
|
} >ram
|
|
.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } >ram
|
|
.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) } >ram
|
|
.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) } >ram
|
|
.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } >ram
|
|
.gnu_extab : ONLY_IF_RO { *(.gnu_extab*) } >ram
|
|
/* These sections are generated by the Sun/Oracle C++ compiler. */
|
|
.exception_ranges : ONLY_IF_RO { *(.exception_ranges*) }
|
|
/* Adjust the address for the data segment. We want to adjust up to
|
|
the same address within the page on the next page up. */
|
|
. = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
|
|
/* Exception handling */
|
|
.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) *(.eh_frame.*) } >ram
|
|
.gnu_extab : ONLY_IF_RW { *(.gnu_extab) } >ram
|
|
.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } >ram
|
|
.exception_ranges : ONLY_IF_RW { *(.exception_ranges*) } >ram
|
|
/* Thread Local Storage sections */
|
|
.tdata :
|
|
{
|
|
PROVIDE_HIDDEN (__tdata_start = .);
|
|
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
|
} >ram
|
|
.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } >ram
|
|
.preinit_array :
|
|
{
|
|
PROVIDE_HIDDEN (__preinit_array_start = .);
|
|
KEEP (*(.preinit_array))
|
|
PROVIDE_HIDDEN (__preinit_array_end = .);
|
|
} >ram
|
|
.init_array :
|
|
{
|
|
PROVIDE_HIDDEN (__init_array_start = .);
|
|
KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
|
|
KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
|
|
PROVIDE_HIDDEN (__init_array_end = .);
|
|
} >ram
|
|
.fini_array :
|
|
{
|
|
PROVIDE_HIDDEN (__fini_array_start = .);
|
|
KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
|
|
KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
|
|
PROVIDE_HIDDEN (__fini_array_end = .);
|
|
} >ram
|
|
.ctors :
|
|
{
|
|
/* 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))
|
|
KEEP (*crtbegin?.o(.ctors))
|
|
/* We don't want to include the .ctor section 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 *crtend?.o ) .ctors))
|
|
KEEP (*(SORT(.ctors.*)))
|
|
KEEP (*(.ctors))
|
|
} >ram
|
|
.dtors :
|
|
{
|
|
KEEP (*crtbegin.o(.dtors))
|
|
KEEP (*crtbegin?.o(.dtors))
|
|
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
|
|
KEEP (*(SORT(.dtors.*)))
|
|
KEEP (*(.dtors))
|
|
} >ram
|
|
.jcr : { KEEP (*(.jcr)) }
|
|
.data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
|
|
.dynamic : { *(.dynamic) }
|
|
. = DATA_SEGMENT_RELRO_END (0, .);
|
|
.data :
|
|
{
|
|
__DATA_BEGIN__ = .;
|
|
*(.data .data.* .gnu.linkonce.d.*)
|
|
SORT(CONSTRUCTORS)
|
|
} >ram
|
|
.data1 : { *(.data1) } >ram
|
|
.got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }
|
|
/* We want the small data sections together, so single-instruction offsets
|
|
can access them all, and initialized data all before uninitialized, so
|
|
we can shorten the on-disk segment size. */
|
|
.sdata :
|
|
{
|
|
__SDATA_BEGIN__ = .;
|
|
*(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata .srodata.*)
|
|
*(.sdata .sdata.* .gnu.linkonce.s.*)
|
|
} >ram
|
|
_edata = .; PROVIDE (edata = .);
|
|
. = .;
|
|
__bss_start = .;
|
|
.sbss :
|
|
{
|
|
*(.dynsbss)
|
|
*(.sbss .sbss.* .gnu.linkonce.sb.*)
|
|
*(.scommon)
|
|
} >ram
|
|
.bss :
|
|
{
|
|
*(.dynbss)
|
|
*(.bss .bss.* .gnu.linkonce.b.*)
|
|
*(COMMON)
|
|
/* Align here to ensure that the .bss section occupies space up to
|
|
_end. Align after .bss to ensure correct alignment even if the
|
|
.bss section disappears because there are no input sections.
|
|
FIXME: Why do we need it? When there is no .bss section, we do not
|
|
pad the .data section. */
|
|
. = ALIGN(. != 0 ? 32 / 8 : 1);
|
|
} >ram
|
|
. = ALIGN(32 / 8);
|
|
. = SEGMENT_START("ldata-segment", .);
|
|
. = ALIGN(32 / 8);
|
|
__bss_end = .;
|
|
__global_pointer$ = MIN(__SDATA_BEGIN__ + 0x800,
|
|
MAX(__DATA_BEGIN__ + 0x800, __bss_end - 0x800));
|
|
_end = .; PROVIDE (end = .);
|
|
. = DATA_SEGMENT_END (.);
|
|
|
|
/* Heap grows upward towards end of ram */
|
|
.heap : ALIGN(16)
|
|
{
|
|
PROVIDE(__heap_start = .);
|
|
/* If end of ram is not 16-byte aligned, align to previous 16-byte
|
|
boundary */
|
|
PROVIDE(__heap_end = ALIGN(ORIGIN(ram) + LENGTH(ram) - __heap_start - 15, 16));
|
|
. = __heap_end;
|
|
} >ram
|
|
|
|
/* Stack grows downward from end of ram */
|
|
.stack (__heap_start) : ALIGN(16) /* this is a requirement of the ABI(?) */
|
|
{
|
|
PROVIDE(__stack_start = __heap_start);
|
|
. = __heap_end;
|
|
PROVIDE(__stack_end = .);
|
|
} >ram
|
|
|
|
/* 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) }
|
|
.gnu.build.attributes : { *(.gnu.build.attributes .gnu.build.attributes.*) }
|
|
/* DWARF debug sections.
|
|
Symbols in the DWARF debugging sections are relative to the beginning
|
|
of the section so we begin them at 0. */
|
|
/* DWARF 1 */
|
|
.debug 0 : { *(.debug) }
|
|
.line 0 : { *(.line) }
|
|
/* GNU DWARF 1 extensions */
|
|
.debug_srcinfo 0 : { *(.debug_srcinfo) }
|
|
.debug_sfnames 0 : { *(.debug_sfnames) }
|
|
/* DWARF 1.1 and DWARF 2 */
|
|
.debug_aranges 0 : { *(.debug_aranges) }
|
|
.debug_pubnames 0 : { *(.debug_pubnames) }
|
|
/* DWARF 2 */
|
|
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
|
.debug_abbrev 0 : { *(.debug_abbrev) }
|
|
.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end) }
|
|
.debug_frame 0 : { *(.debug_frame) }
|
|
.debug_str 0 : { *(.debug_str) }
|
|
.debug_loc 0 : { *(.debug_loc) }
|
|
.debug_macinfo 0 : { *(.debug_macinfo) }
|
|
/* SGI/MIPS DWARF 2 extensions */
|
|
.debug_weaknames 0 : { *(.debug_weaknames) }
|
|
.debug_funcnames 0 : { *(.debug_funcnames) }
|
|
.debug_typenames 0 : { *(.debug_typenames) }
|
|
.debug_varnames 0 : { *(.debug_varnames) }
|
|
/* DWARF 3 */
|
|
.debug_pubtypes 0 : { *(.debug_pubtypes) }
|
|
.debug_ranges 0 : { *(.debug_ranges) }
|
|
/* DWARF Extension. */
|
|
.debug_macro 0 : { *(.debug_macro) }
|
|
.debug_addr 0 : { *(.debug_addr) }
|
|
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
|
|
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
|
|
}
|
|
|