From 50cf94da7e57a9e83d7c0753dd55eae5fd55455a Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 20 Mar 1998 17:16:31 +0000 Subject: SH port submitted from Ralf Corsepius . --- c/src/lib/libbsp/sh/gensh1/startup/Makefile.in | 59 ++++++ c/src/lib/libbsp/sh/gensh1/startup/bspclean.c | 40 ++++ c/src/lib/libbsp/sh/gensh1/startup/bspstart.c | 278 +++++++++++++++++++++++++ c/src/lib/libbsp/sh/gensh1/startup/linkcmds | 203 ++++++++++++++++++ 4 files changed, 580 insertions(+) create mode 100644 c/src/lib/libbsp/sh/gensh1/startup/Makefile.in create mode 100644 c/src/lib/libbsp/sh/gensh1/startup/bspclean.c create mode 100644 c/src/lib/libbsp/sh/gensh1/startup/bspstart.c create mode 100644 c/src/lib/libbsp/sh/gensh1/startup/linkcmds (limited to 'c/src/lib/libbsp/sh/gensh1/startup') diff --git a/c/src/lib/libbsp/sh/gensh1/startup/Makefile.in b/c/src/lib/libbsp/sh/gensh1/startup/Makefile.in new file mode 100644 index 0000000000..d162cbdc92 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh1/startup/Makefile.in @@ -0,0 +1,59 @@ +# +# $Id$ +# + +@SET_MAKE@ +srcdir = @srcdir@ +VPATH=@srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared +RTEMS_ROOT = @top_srcdir@ +PROJECT_ROOT = @PROJECT_ROOT@ + +PGM=${ARCH}/startup.rel + +# C source names, if any, go here -- minus the .c +C_PIECES=bspstart bspclean sbrk setvec main +C_FILES=$(C_PIECES:%=%.c) +C_O_FILES=$(C_PIECES:%=${ARCH}/%.o) + +H_FILES= + +# Assembly source names, if any, go here -- minus the .s +S_PIECES= +S_FILES=$(S_PIECES:%=%.s) +S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o) + +SRCS=linkcmds $(C_FILES) $(H_FILES) $(S_FILES) +OBJS=$(C_O_FILES) $(S_O_FILES) + +include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg +include $(RTEMS_ROOT)/make/leaf.cfg + +# +# (OPTIONAL) Add local stuff here using += +# + +DEFINES += +CPPFLAGS += +CFLAGS += + +LD_PATHS += +LD_LIBS += +LDFLAGS += + +# +# Add your list of files to delete here. The config files +# already know how to delete some stuff, so you may want +# to just run 'make clean' first to see what gets missed. +# 'make clobber' already includes 'make clean' +# + +CLEAN_ADDITIONS += +CLOBBER_ADDITIONS += + +${PGM}: ${SRCS} ${OBJS} + $(make-rel) + +all: ${ARCH} $(SRCS) $(PGM) + $(INSTALL) $(srcdir)/linkcmds ${PROJECT_RELEASE}/lib + +# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile diff --git a/c/src/lib/libbsp/sh/gensh1/startup/bspclean.c b/c/src/lib/libbsp/sh/gensh1/startup/bspclean.c new file mode 100644 index 0000000000..27b767f373 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh1/startup/bspclean.c @@ -0,0 +1,40 @@ +/* bsp_cleanup() + * + * This routine normally is part of start.s and usually returns + * control to a monitor. + * + * INPUT: NONE + * + * OUTPUT: NONE + * + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * You should have received a copy of the GNU General Public License + * along with this program; If not, write to the Free Software Foundation, + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * COPYRIGHT (c) 1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * 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. + * + * $Id$ + */ + +#include +#include + +void bsp_cleanup( void ) +{ +} diff --git a/c/src/lib/libbsp/sh/gensh1/startup/bspstart.c b/c/src/lib/libbsp/sh/gensh1/startup/bspstart.c new file mode 100644 index 0000000000..1a3cc2737f --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh1/startup/bspstart.c @@ -0,0 +1,278 @@ +/* bsp_start() + * + * This routine starts the application. It includes application, + * board, and monitor specific initialization and configuration. + * The generic CPU dependent initialization has been performed + * before this routine is invoked. + * + * INPUT: NONE + * + * OUTPUT: NONE + * + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * + * COPYRIGHT (c) 1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * 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. + * + * $Id$ + */ + +#include +#include + +#include + +#include +#include + +#ifdef STACK_CHECKER_ON +#include +#endif + +/* + * The original table from the application and our copy of it with + * some changes. + */ + +extern rtems_configuration_table Configuration; + +rtems_configuration_table BSP_Configuration; + +rtems_cpu_table Cpu_table; + +char *rtems_progname; + +/* Initialize whatever libc we are using + * called from postdriver hook + */ + + +void bsp_libc_init() +{ + /* + * The last parameter to RTEMS_Malloc_Initialize is the "chunk" + * size which a multiple of will be requested on each sbrk() + * call by malloc(). A value of 0 indicates that sbrk() should + * not be called to extend the heap. + */ + + RTEMS_Malloc_Initialize(&HeapStart, sizeof(unsigned32) * (&HeapEnd - &HeapStart), 0); + + /* + * Init the RTEMS libio facility to provide UNIX-like system + * calls for use by newlib (ie: provide __rtems_open, __rtems_close, etc) + * Uses malloc() to get area for the iops, so must be after malloc init + */ + + rtems_libio_init(); + + /* + * Set up for the libc handling. + */ + + if (BSP_Configuration.ticks_per_timeslice > 0) + libc_init(1); /* reentrant if possible */ + else + libc_init(0); /* non-reentrant */ +} + +/* + * Function: bsp_pretasking_hook + * + * Description: + * BSP pretasking hook. Called just before drivers are initialized. + * Used to setup libc and install any BSP extensions. + * + * NOTES: + * Must not use libc (to do io) from here, since drivers are + * not yet initialized. + * + */ + +void +bsp_pretasking_hook(void) +{ + bsp_libc_init(); + +#ifdef STACK_CHECKER_ON + /* + * Initialize the stack bounds checker + * We can either turn it on here or from the app. + */ + + Stack_check_Initialize(); +#endif + +#ifdef RTEMS_DEBUG + rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); +#endif +} + + +/* + * After drivers are setup, register some "filenames" + * and open stdin, stdout, stderr files + * + * Newlib will automatically associate the files with these + * (it hardcodes the numbers) + */ + +void +bsp_postdriver_hook(void) +{ + int stdin_fd, stdout_fd, stderr_fd; + int error_code; + + error_code = 'S' << 24 | 'T' << 16; + + if ((stdin_fd = __rtems_open("/dev/console", O_RDONLY, 0)) == -1) + rtems_fatal_error_occurred( error_code | 'D' << 8 | '0' ); + + if ((stdout_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) + rtems_fatal_error_occurred( error_code | 'D' << 8 | '1' ); + + if ((stderr_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) + rtems_fatal_error_occurred( error_code | 'D' << 8 | '2' ); + + if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2)) + rtems_fatal_error_occurred( error_code | 'I' << 8 | 'O' ); +} + +int bsp_start( + int argc, + char **argv, + char **environp +) +{ + /* + For real boards you need to setup the hardware + and need to copy the vector table from rom to ram. + + Depending on the board this can ether be done from inside the rom + startup code, rtems startup code or here. + */ + + if ((argc > 0) && argv && argv[0]) + rtems_progname = argv[0]; + else + rtems_progname = "RTEMS"; + + /* + * Allocate the memory for the RTEMS Work Space. This can come from + * a variety of places: hard coded address, malloc'ed from outside + * RTEMS world (e.g. simulator or primitive memory manager), or (as + * typically done by stock BSPs) by subtracting the required amount + * of work space from the last physical address on the CPU board. + */ + + /* + * Copy the Configuration Table .. so we can change it + */ + + BSP_Configuration = Configuration; + + /* + * Add 1 region for the RTEMS Malloc + */ + + BSP_Configuration.RTEMS_api_configuration->maximum_regions++; + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + +#ifdef STACK_CHECKER_ON + /* + * Add 1 extension for stack checker + */ + + BSP_Configuration.maximum_extensions++; +#endif + + /* + * Need to "allocate" the memory for the RTEMS Workspace and + * tell the RTEMS configuration where it is. This memory is + * not malloc'ed. It is just "pulled from the air". + */ + + BSP_Configuration.work_space_start = (void *) &WorkSpaceStart ; + BSP_Configuration.work_space_size = + (unsigned32) &WorkSpaceEnd - + (unsigned32) &WorkSpaceStart ; + + /* + * initialize the CPU table for this BSP + */ + +#if ( CPU_ALLOCATE_INTERRUPT_STACK == FALSE ) + _CPU_Interrupt_stack_low = &CPU_Interrupt_stack_low ; + _CPU_Interrupt_stack_high = &CPU_Interrupt_stack_high ; + + /* This isn't used anywhere */ + Cpu_table.interrupt_stack_size = + (unsigned32) (&CPU_Interrupt_stack_high) - + (unsigned32) (&CPU_Interrupt_stack_low) ; +#endif + + + Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ + + Cpu_table.predriver_hook = NULL; + + Cpu_table.postdriver_hook = bsp_postdriver_hook; + + Cpu_table.idle_task = NULL; /* do not override system IDLE task */ + + Cpu_table.do_zero_of_workspace = TRUE; + +#if ( CPU_ALLOCATE_INTERRUPT_STACK == TRUE ) + Cpu_table.interrupt_stack_size = 4096; +#endif + + Cpu_table.extra_mpci_receive_server_stack = 0; + + /* + * Don't forget the other CPU Table entries. + */ + + /* + * Tell libio how many fd's we want and allow it to tweak config + */ + + rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS); + + /* + * Start RTEMS + */ + + rtems_initialize_executive( &BSP_Configuration, &Cpu_table ); + + bsp_cleanup(); + + return 0; +} diff --git a/c/src/lib/libbsp/sh/gensh1/startup/linkcmds b/c/src/lib/libbsp/sh/gensh1/startup/linkcmds new file mode 100644 index 0000000000..e20551efe7 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh1/startup/linkcmds @@ -0,0 +1,203 @@ +/* + * This is an adapted linker script from egcs-1.0.1 + * + * Memory layout for an SH 7032 with main memory in area 2 + * This memory layout it very similar to that used for Hitachi's + * EVB with CMON in rom + * + * NOTE: The ram start address may vary, all other start addresses are fixed + * Not suiteable for gdb's simulator + * + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * + * COPYRIGHT (c) 1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * 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("coff-sh") +OUTPUT_ARCH(sh) +ENTRY(_start) + +MEMORY +{ + rom : o = 0x00000000, l = 128k + onchip_peri : o = 0x05000000, l = 512 + ram : o = 0x0A040000, l = 256k + + onchip_ram : o = 0x0f000000, l = 8k +} + +SECTIONS +{ + /* boot vector table */ + .monvects 0x00000000 (NOLOAD): { + _monvects = . ; + } > rom + + /* monitor play area */ + .monram 0x0A040000 (NOLOAD) : + { + _ramstart = .; + } > ram + + /* monitor vector table */ + .vects 0x0A042000 (NOLOAD) : { + _vectab = . ; + *(.vects); + } + + /* Read-only sections, merged into text segment: */ + + . = 0x0a044000 ; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + .rel.text : + { *(.rel.text) *(.rel.gnu.linkonce.t*) } + .rela.text : + { *(.rela.text) *(.rela.gnu.linkonce.t*) } + .rel.data : + { *(.rel.data) *(.rel.gnu.linkonce.d*) } + .rela.data : + { *(.rela.data) *(.rela.gnu.linkonce.d*) } + .rel.rodata : + { *(.rel.rodata) *(.rel.gnu.linkonce.r*) } + .rela.rodata : + { *(.rela.rodata) *(.rela.gnu.linkonce.r*) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.init : { *(.rel.init) } + .rela.init : { *(.rela.init) } + .rel.fini : { *(.rel.fini) } + .rela.fini : { *(.rela.fini) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } =0 + .plt : { *(.plt) } + .text . : + { + *(.text) + *(.stub) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.gnu.linkonce.t*) + } > ram + _etext = .; + PROVIDE (etext = .); + .fini . : { *(.fini) } =0 + .rodata . : { *(.rodata) *(.gnu.linkonce.r*) } + .rodata1 . : { *(.rodata1) } + /* 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 . : + { + *(.data) + *(.gnu.linkonce.d*) + CONSTRUCTORS + } > ram + .data1 . : { *(.data1) } + .ctors . : + { + ___ctors = .; + *(.ctors) + ___ctors_end = .; + } + .dtors . : + { + ___dtors = .; + *(.dtors) + ___dtors_end = .; + } + .got . : { *(.got.plt) *(.got) } + .dynamic . : { *(.dynamic) } + /* 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) } + _edata = .; + PROVIDE (edata = .); + __bss_start = .; + .sbss . : { *(.sbss) *(.scommon) } + .bss . : + { + *(.dynbss) + *(.bss) + *(COMMON) + } > ram + _end = . ; + PROVIDE (end = .); + + _HeapStart = . ; + . = . + 1024 * 20 ; + PROVIDE( _HeapEnd = . ); + + _WorkSpaceStart = . ; + . = 0x0a080000 ; + PROVIDE(_WorkSpaceEnd = .); + + _CPU_Interrupt_stack_low = 0x0f000000 ; + _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 0x0f001ff0 : { _stack = .; *(.stack) } > onchip_ram + /* These must appear regardless of . */ +} -- cgit v1.2.3