diff options
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/m68k/sim68000/startup/.cvsignore | 2 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/sim68000/startup/Makefile.am | 40 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/sim68000/startup/bspstart.c | 85 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/sim68000/startup/linkcmds | 129 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/sim68000/startup/spurious_assistant.c | 29 |
5 files changed, 285 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/sim68000/startup/.cvsignore b/c/src/lib/libbsp/m68k/sim68000/startup/.cvsignore new file mode 100644 index 0000000000..282522db03 --- /dev/null +++ b/c/src/lib/libbsp/m68k/sim68000/startup/.cvsignore @@ -0,0 +1,2 @@ +Makefile +Makefile.in diff --git a/c/src/lib/libbsp/m68k/sim68000/startup/Makefile.am b/c/src/lib/libbsp/m68k/sim68000/startup/Makefile.am new file mode 100644 index 0000000000..7215533447 --- /dev/null +++ b/c/src/lib/libbsp/m68k/sim68000/startup/Makefile.am @@ -0,0 +1,40 @@ +## +## $Id$ +## + +AUTOMAKE_OPTIONS = foreign 1.4 + +VPATH = @srcdir@:@srcdir@/../../shared:@srcdir@/../../../shared + +PGM = $(ARCH)/startup.rel + +C_FILES = bspclean.c bsplibc.c bsppost.c bspstart.c bootcard.c \ + m68kpretaskinghook.c main.c sbrk.c setvec.c gnatinstallhandler.c \ + bspspuriousinit.c m68000spurious.c spurious_assistant.c +C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o) + +OBJS = $(C_O_FILES) + +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg +include $(top_srcdir)/../../../../../../automake/lib.am + +# +# (OPTIONAL) Add local stuff here using += +# + +$(PGM): $(OBJS) + $(make-rel) + +$(PROJECT_RELEASE)/lib/linkcmds: linkcmds + $(INSTALL_DATA) $< $@ + +# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile +TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/linkcmds + +all-local: $(ARCH) $(OBJS) $(PGM) $(TMPINSTALL_FILES) + +.PRECIOUS: $(PGM) + +EXTRA_DIST = bspclean.c bspstart.c exit.c linkcmds setvec.c + +include $(top_srcdir)/../../../../../../automake/local.am diff --git a/c/src/lib/libbsp/m68k/sim68000/startup/bspstart.c b/c/src/lib/libbsp/m68k/sim68000/startup/bspstart.c new file mode 100644 index 0000000000..60c417496c --- /dev/null +++ b/c/src/lib/libbsp/m68k/sim68000/startup/bspstart.c @@ -0,0 +1,85 @@ +/* + * 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. + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * 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 <bsp.h> +#include <rtems/libio.h> + +#include <libcsupport.h> + +#include <string.h> + +/* + * 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; + +/* + * Use the shared implementations of the following routines + */ + +void bsp_postdriver_hook(void); +void bsp_libc_init( void *, unsigned32, int ); +void bsp_pretasking_hook(void); /* m68k version */ + +void bsp_predriver_hook(void) +{ + void bsp_spurious_initialize(); + bsp_spurious_initialize(); +} +/* + * bsp_start + * + * This routine does the bulk of the system initialization. + */ + +void bsp_start( void ) +{ + unsigned8 dummy; + extern void * _WorkspaceBase; + extern void *_RamSize; + extern unsigned long _M68k_Ramsize; + + _M68k_Ramsize = (unsigned long)&_RamSize; /* RAM size set in linker script */ + + /* + * Clear interrupt sources. + */ + + Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ + Cpu_table.predriver_hook = bsp_predriver_hook; + Cpu_table.postdriver_hook = bsp_postdriver_hook; + +/* XXX address shutdown + if ( BSP_Configuration.work_space_size >(128*1024) ) + _sys_exit( 1 ); +*/ + + BSP_Configuration.work_space_start = (void *) &_WorkspaceBase; +} + +#include <bspIo.h> + +int debug_putc( char c ) { write( 2, &c, 1 ); return 0; } +BSP_output_char_function_type BSP_output_char = debug_putc; +BSP_polling_getchar_function_type BSP_poll_char = NULL; diff --git a/c/src/lib/libbsp/m68k/sim68000/startup/linkcmds b/c/src/lib/libbsp/m68k/sim68000/startup/linkcmds new file mode 100644 index 0000000000..82f44ba523 --- /dev/null +++ b/c/src/lib/libbsp/m68k/sim68000/startup/linkcmds @@ -0,0 +1,129 @@ +/* + * $Id$ + * + * MC68302 Linker command file + * + */ + +/* + * Declare some sizes. + */ +_RomBase = DEFINED(_RomBase) ? _RomBase : 0x0; +_RomSize = DEFINED(_RomSize) ? _RomSize : 256K; +_RamBase = DEFINED(_RamBase) ? _RamBase : 0x40000; +_RamSize = DEFINED(_RamSize) ? _RamSize : 128K; +_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 32K; +_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000; + +/* + * Declare on-board memory. + */ +MEMORY { + eprom : ORIGIN = 0x00000000, LENGTH = 256K + ram : ORIGIN = 0x00040000, LENGTH = 128K +} +SECTIONS +{ + ram : { + . = .; + } >ram + + /* + * Text, data and bss segments + */ + .text 0x0 : { + *(.text) + + /* + * C++ constructors/destructors + */ + *(.gnu.linkonce.t.*) + + /* + * Initialization and finalization code. + * + * Various files can provide initialization and finalization + * functions. crtbegin.o and crtend.o are two instances. The + * body of these functions are in .init and .fini sections. We + * accumulate the bodies here, and prepend function prologues + * from crti.o and function epilogues from crtn.o. crti.o must + * be linked first; crtn.o must be linked last. Because these + * are wildcards, it doesn't matter if the user does not + * actually link against crti.o and crtn.o; the linker won't + * look for a file to match a wildcard. The wildcard also + * means that it doesn't matter which directory crti.o and + * crtn.o are in. + */ + PROVIDE (_init = .); + *crti.o(.init) + *(.init) + *crtn.o(.init) + PROVIDE (_fini = .); + *crti.o(.fini) + *(.fini) + *crtn.o(.fini) + + /* + * C++ constructors/destructors + * + * gcc uses crtbegin.o to find the start of the constructors + * and destructors 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. The + * constructor and destructor list are terminated in + * crtend.o. The same comments apply to it. + */ + . = ALIGN (16); + *crtbegin.o(.ctors) + *(.ctors) + *crtend.o(.ctors) + *crtbegin.o(.dtors) + *(.dtors) + *crtend.o(.dtors) + + /* + * Exception frame info + */ + . = ALIGN (16); + *(.eh_frame) + + /* + * Read-only data + */ + . = ALIGN (16); + _rodata_start = . ; + *(.rodata) + *(.gnu.linkonce.r*) + + . = ALIGN (16); + PROVIDE (_etext = .); + } + .data 0x40000 : AT (ADDR(.text) + SIZEOF (.text)) { + PROVIDE (_copy_start = .); + *(.data) + *(.gnu.linkonce.d*) + *(.gcc_except_table) + . = ALIGN (16); + PROVIDE (_edata = .); + PROVIDE (_copy_end = .); + } + .bss ADDR(.data) + SIZEOF(.data) : { + _clear_start = .; + *(.bss) + *(COMMON) + . = ALIGN (16); + PROVIDE (end = .); + + . += _StackSize; + . = ALIGN (16); + _stack_init = .; + _clear_end = .; + + _WorkspaceBase = .; + } +} + +_VBR = 0xFFFFFFFF; /* indicates VBR table is in ROM */ + diff --git a/c/src/lib/libbsp/m68k/sim68000/startup/spurious_assistant.c b/c/src/lib/libbsp/m68k/sim68000/startup/spurious_assistant.c new file mode 100644 index 0000000000..eef49b7fa0 --- /dev/null +++ b/c/src/lib/libbsp/m68k/sim68000/startup/spurious_assistant.c @@ -0,0 +1,29 @@ +/* + * Spurious Trap Handler Assistant + * + * COPYRIGHT (c) 1989-2000. + * On-Line Applications Research Corporation (OAR). + * + * 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 <bsp.h> +#include <bspIo.h> + +/* + * bsp_spurious_handler_assistant + * + * We can't recover so just return to gdb. + */ + +void bsp_spurious_handler_assistant( + rtems_vector_number vector/* , + CPU_Interrupt_frame *isf */ +) +{ + /* XXX do something here */ +} |