diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 10:35:35 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 13:52:14 +0200 |
commit | 99648958668d3a33ee57974479b36201fe303f34 (patch) | |
tree | 6f27ea790e2823c6156e71219a4f54680263fac6 /bsps/m68k/gen68340 | |
parent | bsps: Move start files to bsps (diff) | |
download | rtems-99648958668d3a33ee57974479b36201fe303f34.tar.bz2 |
bsps: Move startup files to bsps
Adjust build support files to new directory layout.
This patch is a part of the BSP source reorganization.
Update #3285.
Diffstat (limited to 'bsps/m68k/gen68340')
-rw-r--r-- | bsps/m68k/gen68340/start/bsp_specs | 10 | ||||
-rw-r--r-- | bsps/m68k/gen68340/start/dumpanic.c | 190 | ||||
-rw-r--r-- | bsps/m68k/gen68340/start/init68340.c | 38 | ||||
-rw-r--r-- | bsps/m68k/gen68340/start/linkcmds | 248 |
4 files changed, 486 insertions, 0 deletions
diff --git a/bsps/m68k/gen68340/start/bsp_specs b/bsps/m68k/gen68340/start/bsp_specs new file mode 100644 index 0000000000..3a20757667 --- /dev/null +++ b/bsps/m68k/gen68340/start/bsp_specs @@ -0,0 +1,10 @@ +%rename endfile old_endfile +%rename startfile old_startfile + +*startfile: +%{!qrtems: %(old_startfile)} \ +%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}} + +*endfile: +%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s crtn.o%s} + diff --git a/bsps/m68k/gen68340/start/dumpanic.c b/bsps/m68k/gen68340/start/dumpanic.c new file mode 100644 index 0000000000..7f82ab3a77 --- /dev/null +++ b/bsps/m68k/gen68340/start/dumpanic.c @@ -0,0 +1,190 @@ +/* + * M68340/349 registers and stack dump if an exception is raised + */ + +/* + * Author: + * Pascal Cadic + * France Telecom - CNET/DSM/TAM/CAT + * 4, rue du Clos Courtel + * 35512 CESSON-SEVIGNE + * FRANCE + * + * 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.rtems.org/license/LICENSE. + */ + +#include <bsp.h> +#include <rtems/bspIo.h> + +const char *exceptionName[] = { + "INITIAL STACK POINTER", + "INITIAL PROGRAM COUNTER", + "BUS ERROR", + "ADDRESS ERROR", + "ILLEGAL INSTRUCTION", + "DIVISION BY ZERO", + "CHK, CHK2", + "TRAPcc, TRAPv", + "PRIVILEGE VIOLATION", + "TRACE", + "LINE A EMULATOR", + "LINE F EMULATOR", + "HARDWARE BREAK", + "COPROCESSOR PROTOCOL VIOLATION", + "FORMAT ERROR", + "UNINITIALIZED INTERRUPT", + "RESERVED 16", + "RESERVED 17", + "RESERVED 18", + "RESERVED 19", + "RESERVED 20", + "RESERVED 21", + "RESERVED 22", + "RESERVED 23", + "SPURIOUS INTERRUPT", + "LEVEL 1 AUTOVECTOR", + "LEVEL 2 AUTOVECTOR", + "LEVEL 3 AUTOVECTOR", + "LEVEL 4 AUTOVECTOR", + "LEVEL 5 AUTOVECTOR", + "LEVEL 6 AUTOVECTOR", + "LEVEL 7 AUTOVECTOR", + "TRAP 1", + "TRAP 2", + "TRAP 3", + "TRAP 4", + "TRAP 5", + "TRAP 6", + "TRAP 7", + "TRAP 8", + "TRAP 9", + "TRAP 10", + "TRAP 11", + "TRAP 12", + "TRAP 13", + "TRAP 14", + "TRAP 15", + "VECTOR 48", + "VECTOR 49", + "VECTOR 50", + "VECTOR 51", + "VECTOR 52", + "VECTOR 53", + "VECTOR 54", + "VECTOR 55", + "VECTOR 56", + "VECTOR 57", + "VECTOR 58", + "VECTOR 59", + "VECTOR 60", + "VECTOR 61", + "VECTOR 62", + "VECTOR 63", + }; + +typedef struct { + unsigned long pc; + unsigned short sr; + unsigned short format_id; + unsigned long d0, d1, d2, d3, d4, d5, d6, d7; + unsigned long a0, a1, a2, a3, a4, a5, a6, a7; + unsigned long sfc, dfc, vbr; +} boot_panic_registers_t; + +boot_panic_registers_t _boot_panic_registers; + +/****************************************************** + Name: _dbug_dump + Input parameters: sr, pc, stack pointer, + size to display + Output parameters: - + Description: display the supervisor stack + *****************************************************/ +static void _dbug_dump( + unsigned short sr, + void* pc, + unsigned short *stack, + int size +) +{ + int i; + + printk("%x : %x \t%x",0,sr,(unsigned short)(((unsigned)pc)>>16)); + for (i=2; i<size; i++) { + if ((i%8)==0) printk("\n%x :",i/8); + printk(" %x\t",stack[i-2]); + } + printk("\n"); +} + +/****************************************************** + Name: _dbug_dump + Input parameters: - + Output parameters: - + Description: display microcontroler state. Registers + values are stored in _boot_panic_registers + which is filled in _uhoh ASM routine + *****************************************************/ +void _dbug_dumpanic(void) +{ + int c; + void *faultedAddr, *pc; + unsigned short vector, status; + unsigned char frametype, *stack; + #define ESCAPE 27 + + stack = (unsigned char*)(_boot_panic_registers.a7); + do { + status = _boot_panic_registers.sr; + pc = (void*)_boot_panic_registers.pc; + faultedAddr = *(void**)(stack+4); + vector = (_boot_panic_registers.format_id&0x0FFF)>>2; + frametype = (_boot_panic_registers.format_id&0xF000)>>12; + + printk("\n---------------------------------------------\n"); + if (vector<64) + printk("%s",exceptionName[vector]); + else { + printk("RESERVED USER"); + } + printk(" exception (vector %x, type %x)\n",vector,frametype); + printk("---------------------------------------------\n"); + printk("PC : %p ",pc); + printk("A7 : 0x%lx ",_boot_panic_registers.a7); + printk("SR : 0x%x\n",status); + if (frametype==0x0c) { + printk("\nfaulted address = %p\n",faultedAddr); + } + printk("---------------------------------------------\n"); + printk(" panic regs\n"); + printk("---------------------------------------------\n"); + printk("D[0..3] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.d0,_boot_panic_registers.d1, + _boot_panic_registers.d2,_boot_panic_registers.d3); + printk("D[4..7] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.d4,_boot_panic_registers.d5, + _boot_panic_registers.d6,_boot_panic_registers.d7); + printk("A[0..3] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.a0,_boot_panic_registers.a1, + _boot_panic_registers.a2,_boot_panic_registers.a3); + printk("A[4..7] : %lx \t%lx \t%lx \t%lx\n", + _boot_panic_registers.a4,_boot_panic_registers.a5, + _boot_panic_registers.a6,_boot_panic_registers.a7); + + printk(" SFC : %lx",_boot_panic_registers.sfc); + printk(" DFC : %lx\n",_boot_panic_registers.dfc); + printk(" VBR : %lx\n",_boot_panic_registers.vbr); + printk("---------------------------------------------\n"); + printk(" panic stack\n"); + printk("---------------------------------------------\n"); + _dbug_dump(status, pc, (unsigned short*)stack,64*2); + + printk("---------------------------------------------\n"); + printk("press escape to reboot\n"); + } while ((c=getchark())!=ESCAPE); +} diff --git a/bsps/m68k/gen68340/start/init68340.c b/bsps/m68k/gen68340/start/init68340.c new file mode 100644 index 0000000000..ee30f415e9 --- /dev/null +++ b/bsps/m68k/gen68340/start/init68340.c @@ -0,0 +1,38 @@ +/* + * MC68340/349 support routines + * + * Geoffroy Montel + * France Telecom - CNET/DSM/TAM/CAT + * 4, rue du Clos Courtel + * 35512 CESSON-SEVIGNE + * FRANCE + * + * e-mail: g_montel@yahoo.com + */ + +#include <rtems.h> +#include <bsp.h> + +extern void _CopyDataClearBSSAndStart (void); + +/* + * Initialize MC68340 + */ +void _Init68340 (void) +{ + rtems_isr_entry *vbr; + int i; + + /* + * Copy the exception vector table to system RAM + */ + m68k_get_vbr (vbr); + for (i = 0; i < 256; ++i) + M68Kvec[i] = vbr[i]; + m68k_set_vbr (M68Kvec); + + /* + * Copy data, clear BSS, switch stacks and call main() + */ + _CopyDataClearBSSAndStart (); +} diff --git a/bsps/m68k/gen68340/start/linkcmds b/bsps/m68k/gen68340/start/linkcmds new file mode 100644 index 0000000000..860115930e --- /dev/null +++ b/bsps/m68k/gen68340/start/linkcmds @@ -0,0 +1,248 @@ +/* + * This file contains GNU linker directives for a generic MC68340/349 board. + * Variations in hardware type and dynamic memory size can be made + * by overriding some values with linker command-line arguments. + * + * ATTENTION: RAM and ROM placement must accord those in start340.S!! + * (next time I'll use some shared variables :) ) + * + * Geoffroy Montel + * France Telecom - CNET/DSM/TAM/CAT + * 4, rue du Clos Courtel + * 35512 CESSON-SEVIGNE + * FRANCE + * + * e-mail: g_montel@yahoo.com + */ + +/* + * Declare some sizes. + */ +RamBase = DEFINED(RamBase) ? RamBase : 0x10000000; +RamSize = DEFINED(RamSize) ? RamSize : 4M; +HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0; +_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000; + +/* + * Declare on-board memory. + * It would be nice if the ram length could be given as + * LENGTH=RamSize, but gld doesn't allow non-constant + * values in the LENGTH expression. + */ +MEMORY { + ram : ORIGIN = 0x10000000, LENGTH = 4M + rom : ORIGIN = 0x01000000, LENGTH = 4M +/* dpram : ORIGIN = 0xFE000000, LENGTH = 8k */ +} + +ENTRY(start) +STARTUP(start.o) + +/* + * Declare low-order three octets of Ethernet address. + */ +ETHERNET_ADDRESS = DEFINED(ETHERNET_ADDRESS) ? ETHERNET_ADDRESS : 0xDEAD12; + +/* + * Load objects + */ +SECTIONS { + + /* + * Boot PROM + */ + rom : { + _RomBase = .; + __RomBase = .; + } >rom + + /* + * Dynamic RAM + */ + ram : { + . = .; + } >ram + + /* + * Text, data and bss segments + */ + .text : { + *(.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) + + /* + * Special FreeBSD sysctl sections. + */ + . = ALIGN (16); + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = ABSOLUTE(.); + *(set_domain_*); + *(set_pseudo_*); + + /* + * 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*) + KEEP (*(SORT(.rtemsroset.*))) + *(.gnu.linkonce.r*) + + . = ALIGN (16); + PROVIDE (_etext = .); + } >ram + + .tdata : { + _TLS_Data_begin = .; + *(.tdata .tdata.* .gnu.linkonce.td.*) + _TLS_Data_end = .; + } >ram + + .tbss : { + _TLS_BSS_begin = .; + *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) + _TLS_BSS_end = .; + } >ram + + _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin; + _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin; + _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin; + _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin; + _TLS_Size = _TLS_BSS_end - _TLS_Data_begin; + _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss)); + + .data : { + PROVIDE (_copy_start = .); + *(.data*) + KEEP (*(SORT(.rtemsrwset.*))) + *(.gnu.linkonce.d*) + *(.gcc_except_table*) + *(.jcr) + . = ALIGN (16); + PROVIDE (_edata = .); + PROVIDE (_copy_end = .); + } >ram + .bss : { + M68Kvec = .; + . += (256 * 4); + _clear_start = .; + *(.dynbss) + *(.bss* .gnu.linkonce.b.*) + *(COMMON) + . = ALIGN (16); + PROVIDE (end = .); + + . += _StackSize; + . = ALIGN (16); + _stack_init = .; + _clear_end = .; + + WorkAreaBase = .; + } >ram + + /* + * On-chip memory/peripherals + * + */ + dpram : { + m340 = .; + _m340 = .; + . += (8 * 1024); + } >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) } + + /* 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) } + /* These must appear regardless of . */ +} |