From 96462044ce9a80c6caed1ce06466cbc2ae911780 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Thu, 11 Oct 2001 19:04:12 +0000 Subject: 2001-10-11 Alexandra Kossovsky * Makefile.am, README, bsp_specs, .cvsignore, include/Makefile.am, include/bsp.h, include/coverhd.h, include/sdram.h, include/.cvsignore, start/Makefile.am, start/start.S, start/.cvsignore, startup/Makefile.am, startup/bspstart.c, startup/linkcmds, startup/linkcmds.rom, startup/linkcmds.rom2ram, startup/.cvsignore, wrapup/Makefile.am, wrapup/.cvsignore, hw_init/Makefile.am, hw_init/hw_init.c, hw_init/.cvsignore, times, configure.ac: New files. Reviewed and updated to latest automake and autoconf standards by Ralf Corsepius . --- c/src/lib/libbsp/sh/gensh4/startup/linkcmds | 187 ++++++++++++++++++++++++++++ 1 file changed, 187 insertions(+) create mode 100644 c/src/lib/libbsp/sh/gensh4/startup/linkcmds (limited to 'c/src/lib/libbsp/sh/gensh4/startup/linkcmds') diff --git a/c/src/lib/libbsp/sh/gensh4/startup/linkcmds b/c/src/lib/libbsp/sh/gensh4/startup/linkcmds new file mode 100644 index 0000000000..6a0342b538 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh4/startup/linkcmds @@ -0,0 +1,187 @@ +/* + * This file contains GNU linker directives for an general SH4 + * board. + * + * Variations in memory size and allocation can be made by + * overriding some values with linker command-line arguments. + * + * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia + * Author: Victor V. Vengerov + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + + +OUTPUT_FORMAT("elf32-shl", "elf32-shl", + "elf32-shl") +OUTPUT_ARCH(sh) +ENTRY(_start) +/* Do we need any of these for elf? + __DYNAMIC = 0; */ + +_HeapSize = DEFINED(_HeapSize) ? _HeapSize : (2 * 1024 * 1024); +_WorkspaceSize = DEFINED(_WorkspaceSize) ? _WorkspaceSize : (1024 * 1024); + +/* + * Area assignments: + * Area 0: Flash memory, SRAM interface + * Area 1: GDC + * Area 2: SDRAM + * Area 3-6: unused + */ +MEMORY +{ + ram : o = 0x88100000, l = 7M + rom : o = 0x80000000, l = 4M +} + +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + .init : + { + KEEP (*(.init)) + } =0 + .text : + { + *(.text) + *(.text.*) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t*) + } > ram + _etext = .; + PROVIDE (etext = .); + .fini : + { + KEEP (*(.fini)) + } =0 + .rodata : + { + *(.rodata) + *(.rodata.*) + *(.gnu.linkonce.r*) + } > ram + .ctors : + { + ___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)) + /* 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)) + ___ctors_end = .; + } > ram + .dtors : + { + ___dtors = .; + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + ___dtors_end = .; + copy_start_in_rom = .; + } > ram + + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. */ + . = ALIGN(128) + (. & (128 - 1)); + .data : + { + copy_start = .; + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + SORT(CONSTRUCTORS) + copy_end = .; + } > ram + .eh_frame : { *(.eh_frame) } > ram + /* 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. */ + .bss : + { + __bss_start = .; + *(.dynbss) + *(.bss) + *(.bss.*) + *(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. */ + . = ALIGN(32 / 8); + __bss_end = .; + } > ram + + . = ALIGN(16); + _HeapStart = . ; + . = . + _HeapSize ; + PROVIDE( _HeapEnd = . ); + + . = ALIGN(16); + _WorkSpaceStart = . ; + . = . + _WorkspaceSize ; + PROVIDE(_WorkSpaceEnd = .); + + . = ALIGN(16); + .stack . : { + . = . + 4096; + } + + . = ALIGN(16); + _CPU_Interrupt_stack_low = . ; + _CPU_Interrupt_stack_high = _CPU_Interrupt_stack_low + 4096 ; + + /* 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) } + /* 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) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .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) } + .stack : { _stack = .; *(.stack) } + /* These must appear regardless of . */ +} -- cgit v1.2.3