From 9b27cf7bbb8b31461f7d91e737b026b6cbea640d Mon Sep 17 00:00:00 2001 From: "Frank Ch. Eigler" Date: Wed, 30 Dec 1998 12:17:10 +0000 Subject: * eCos->devo merge; am30 sanitization tags removed 1998-12-29 Frank Ch. Eigler * Makefile.in (WITH_COMMON_OBJS): Build also dv-sockser.o. * interp.c (sim_open): Add stub mn103002 cache control memory regions. Set OPERATING_ENVIRONMENT on "stdeval1" board. (mn10300_core_signal): New function to intercept memory errors. (program_interrupt): New function to dispatch to exception vector (mn10300_exception_*): New functions to snapshot pre/post exception state. * sim-main.h (SIM_CORE_SIGNAL): Define hook - call mn10300_core_signal. (SIM_ENGINE_HALT_HOOK): Do nothing. (SIM_CPU_EXCEPTION*): Define hooks to call mn10300_cpu_exception*(). (_sim_cpu): Add exc_* fields to store register value snapshots. * dv-mn103ser.c (*): Support dv-sockser backend for UART I/O. Various endianness and warning fixes. * mn10300.igen (illegal): Call program_interrupt on error. (break): Call program_interrupt on breakpoint Several changes from and merged in: * dv-mn103int.c (mn103int_ioctl): New function for NMI generation. (mn103int_finish): Install it as ioctl handler. * dv-mn103tim.c: Support timer 6 specially. Endianness fixes. --- sim/mn10300/.Sanitize | 1 + sim/mn10300/configure.in | 2 - sim/mn10300/interp.c | 367 ++++++++++++++++++++++++++++++++--------------- 3 files changed, 255 insertions(+), 115 deletions(-) diff --git a/sim/mn10300/.Sanitize b/sim/mn10300/.Sanitize index 4b973b8..973b44f 100644 --- a/sim/mn10300/.Sanitize +++ b/sim/mn10300/.Sanitize @@ -52,6 +52,7 @@ mn10300.dc sim-main.h sim-main.c op_utils.c +tconfig.in Things-to-lose: diff --git a/sim/mn10300/configure.in b/sim/mn10300/configure.in index 38ee941..8160609 100644 --- a/sim/mn10300/configure.in +++ b/sim/mn10300/configure.in @@ -13,10 +13,8 @@ SIM_AC_OPTION_WARNINGS SIM_AC_OPTION_RESERVED_BITS SIM_AC_OPTION_BITSIZE(32,31) SIM_AC_OPTION_INLINE() -# start-sanitize-am30 SIM_AC_OPTION_HARDWARE(yes,,mn103cpu mn103int mn103tim mn103ser mn103iop) -# end-sanitize-am30 AC_CHECK_FUNCS(time chmod utime fork execve execv chown) AC_CHECK_HEADERS(unistd.h stdlib.h string.h strings.h utime.h time.h) diff --git a/sim/mn10300/interp.c b/sim/mn10300/interp.c index 9d84cc0..3da22af 100644 --- a/sim/mn10300/interp.c +++ b/sim/mn10300/interp.c @@ -3,9 +3,7 @@ #if WITH_COMMON #include "sim-main.h" #include "sim-options.h" -/* start-sanitize-am30 */ #include "sim-hw.h" -/* end-sanitize-am30 */ #else #include "mn10300_sim.h" #endif @@ -40,6 +38,7 @@ host_callback *mn10300_callback; int mn10300_debug; +struct _state State; /* simulation target board. NULL=default configuration */ @@ -78,13 +77,11 @@ mn10300_option_handler (sd, cpu, opt, arg, is_command) static const OPTION mn10300_options[] = { -/* start-sanitize-am30 */ #define BOARD_AM32 "stdeval1" { {"board", required_argument, NULL, OPTION_BOARD}, '\0', "none" /* rely on compile-time string concatenation for other options */ "|" BOARD_AM32 , "Customize simulation for a particular board.", mn10300_option_handler }, -/* end-sanitize-am30 */ { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL } }; @@ -887,6 +884,7 @@ sim_stop_reason (sd, reason, sigrc) *reason = sim_exited; else *reason = sim_stopped; + if (State.exception == SIGQUIT) *sigrc = 0; else @@ -973,7 +971,7 @@ sim_open (kind, cb, abfd, argv) /* Allocate core managed memory */ sim_do_command (sd, "memory region 0,0x100000"); - sim_do_command (sd, "memory region 0x40000000,0x100000"); + sim_do_command (sd, "memory region 0x40000000,0x200000"); /* getopt will print the error message so we just have to exit if this fails. FIXME: Hmmm... in the case of gdb we need getopt to call @@ -986,118 +984,144 @@ sim_open (kind, cb, abfd, argv) return 0; } - /* start-sanitize-am30 */ if ( NULL != board && (strcmp(board, BOARD_AM32) == 0 ) ) - { - /* device support for mn1030002 */ - /* interrupt controller */ - - sim_hw_parse (sd, "/mn103int@0x34000100/reg 0x34000100 0x7C 0x34000200 0x8 0x34000280 0x8"); - - /* DEBUG: NMI input's */ - sim_hw_parse (sd, "/glue@0x30000000/reg 0x30000000 12"); - sim_hw_parse (sd, "/glue@0x30000000 > int0 nmirq /mn103int"); - sim_hw_parse (sd, "/glue@0x30000000 > int1 watchdog /mn103int"); - sim_hw_parse (sd, "/glue@0x30000000 > int2 syserr /mn103int"); - - /* DEBUG: ACK input */ - sim_hw_parse (sd, "/glue@0x30002000/reg 0x30002000 4"); - sim_hw_parse (sd, "/glue@0x30002000 > int ack /mn103int"); - - /* DEBUG: LEVEL output */ - sim_hw_parse (sd, "/glue@0x30004000/reg 0x30004000 8"); - sim_hw_parse (sd, "/mn103int > nmi int0 /glue@0x30004000"); - sim_hw_parse (sd, "/mn103int > level int1 /glue@0x30004000"); - - /* DEBUG: A bunch of interrupt inputs */ - sim_hw_parse (sd, "/glue@0x30006000/reg 0x30006000 32"); - sim_hw_parse (sd, "/glue@0x30006000 > int0 irq-0 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int1 irq-1 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int2 irq-2 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int3 irq-3 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int4 irq-4 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int5 irq-5 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int6 irq-6 /mn103int"); - sim_hw_parse (sd, "/glue@0x30006000 > int7 irq-7 /mn103int"); - - /* processor interrupt device */ - - /* the device */ - sim_hw_parse (sd, "/mn103cpu@0x20000000"); - sim_hw_parse (sd, "/mn103cpu@0x20000000/reg 0x20000000 0x42"); - - /* DEBUG: ACK output wired upto a glue device */ - sim_hw_parse (sd, "/glue@0x20002000"); - sim_hw_parse (sd, "/glue@0x20002000/reg 0x20002000 4"); - sim_hw_parse (sd, "/mn103cpu > ack int0 /glue@0x20002000"); - - /* DEBUG: RESET/NMI/LEVEL wired up to a glue device */ - sim_hw_parse (sd, "/glue@0x20004000"); - sim_hw_parse (sd, "/glue@0x20004000/reg 0x20004000 12"); - sim_hw_parse (sd, "/glue@0x20004000 > int0 reset /mn103cpu"); - sim_hw_parse (sd, "/glue@0x20004000 > int1 nmi /mn103cpu"); - sim_hw_parse (sd, "/glue@0x20004000 > int2 level /mn103cpu"); - - /* REAL: The processor wired up to the real interrupt controller */ - sim_hw_parse (sd, "/mn103cpu > ack ack /mn103int"); - sim_hw_parse (sd, "/mn103int > level level /mn103cpu"); - sim_hw_parse (sd, "/mn103int > nmi nmi /mn103cpu"); - - - /* PAL */ - - /* the device */ - sim_hw_parse (sd, "/pal@0x31000000"); - sim_hw_parse (sd, "/pal@0x31000000/reg 0x31000000 64"); - sim_hw_parse (sd, "/pal@0x31000000/poll? true"); - - /* DEBUG: PAL wired up to a glue device */ - sim_hw_parse (sd, "/glue@0x31002000"); - sim_hw_parse (sd, "/glue@0x31002000/reg 0x31002000 16"); - sim_hw_parse (sd, "/pal@0x31000000 > countdown int0 /glue@0x31002000"); - sim_hw_parse (sd, "/pal@0x31000000 > timer int1 /glue@0x31002000"); - sim_hw_parse (sd, "/pal@0x31000000 > int int2 /glue@0x31002000"); - sim_hw_parse (sd, "/glue@0x31002000 > int0 int3 /glue@0x31002000"); - sim_hw_parse (sd, "/glue@0x31002000 > int1 int3 /glue@0x31002000"); - sim_hw_parse (sd, "/glue@0x31002000 > int2 int3 /glue@0x31002000"); - - /* REAL: The PAL wired up to the real interrupt controller */ - sim_hw_parse (sd, "/pal@0x31000000 > countdown irq-0 /mn103int"); - sim_hw_parse (sd, "/pal@0x31000000 > timer irq-1 /mn103int"); - sim_hw_parse (sd, "/pal@0x31000000 > int irq-2 /mn103int"); - - /* 8 and 16 bit timers */ - sim_hw_parse (sd, "/mn103tim@0x34001000/reg 0x34001000 36 0x34001080 100"); - - /* Hook timer interrupts up to interrupt controller */ - sim_hw_parse (sd, "/mn103tim > timer-0-underflow timer-0-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-1-underflow timer-1-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-2-underflow timer-2-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-3-underflow timer-3-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-4-underflow timer-4-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-5-underflow timer-5-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-6-underflow timer-6-underflow /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-6-compare-a timer-6-compare-a /mn103int"); - sim_hw_parse (sd, "/mn103tim > timer-6-compare-b timer-6-compare-b /mn103int"); - - - /* Serial devices 0,1,2 */ - sim_hw_parse (sd, "/mn103ser@0x34000800/reg 0x34000800 48"); - sim_hw_parse (sd, "/mn103ser@0x34000800/poll? true"); + { + /* environment */ + STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; + + sim_do_command (sd, "memory region 0x44000000,0x40000"); + sim_do_command (sd, "memory region 0x48000000,0x400000"); + + /* device support for mn1030002 */ + /* interrupt controller */ + + sim_hw_parse (sd, "/mn103int@0x34000100/reg 0x34000100 0x7C 0x34000200 0x8 0x34000280 0x8"); + + /* DEBUG: NMI input's */ + sim_hw_parse (sd, "/glue@0x30000000/reg 0x30000000 12"); + sim_hw_parse (sd, "/glue@0x30000000 > int0 nmirq /mn103int"); + sim_hw_parse (sd, "/glue@0x30000000 > int1 watchdog /mn103int"); + sim_hw_parse (sd, "/glue@0x30000000 > int2 syserr /mn103int"); + + /* DEBUG: ACK input */ + sim_hw_parse (sd, "/glue@0x30002000/reg 0x30002000 4"); + sim_hw_parse (sd, "/glue@0x30002000 > int ack /mn103int"); + + /* DEBUG: LEVEL output */ + sim_hw_parse (sd, "/glue@0x30004000/reg 0x30004000 8"); + sim_hw_parse (sd, "/mn103int > nmi int0 /glue@0x30004000"); + sim_hw_parse (sd, "/mn103int > level int1 /glue@0x30004000"); + + /* DEBUG: A bunch of interrupt inputs */ + sim_hw_parse (sd, "/glue@0x30006000/reg 0x30006000 32"); + sim_hw_parse (sd, "/glue@0x30006000 > int0 irq-0 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int1 irq-1 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int2 irq-2 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int3 irq-3 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int4 irq-4 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int5 irq-5 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int6 irq-6 /mn103int"); + sim_hw_parse (sd, "/glue@0x30006000 > int7 irq-7 /mn103int"); + + /* processor interrupt device */ + + /* the device */ + sim_hw_parse (sd, "/mn103cpu@0x20000000"); + sim_hw_parse (sd, "/mn103cpu@0x20000000/reg 0x20000000 0x42"); + + /* DEBUG: ACK output wired upto a glue device */ + sim_hw_parse (sd, "/glue@0x20002000"); + sim_hw_parse (sd, "/glue@0x20002000/reg 0x20002000 4"); + sim_hw_parse (sd, "/mn103cpu > ack int0 /glue@0x20002000"); + + /* DEBUG: RESET/NMI/LEVEL wired up to a glue device */ + sim_hw_parse (sd, "/glue@0x20004000"); + sim_hw_parse (sd, "/glue@0x20004000/reg 0x20004000 12"); + sim_hw_parse (sd, "/glue@0x20004000 > int0 reset /mn103cpu"); + sim_hw_parse (sd, "/glue@0x20004000 > int1 nmi /mn103cpu"); + sim_hw_parse (sd, "/glue@0x20004000 > int2 level /mn103cpu"); + + /* REAL: The processor wired up to the real interrupt controller */ + sim_hw_parse (sd, "/mn103cpu > ack ack /mn103int"); + sim_hw_parse (sd, "/mn103int > level level /mn103cpu"); + sim_hw_parse (sd, "/mn103int > nmi nmi /mn103cpu"); + + + /* PAL */ + + /* the device */ + sim_hw_parse (sd, "/pal@0x31000000"); + sim_hw_parse (sd, "/pal@0x31000000/reg 0x31000000 64"); + sim_hw_parse (sd, "/pal@0x31000000/poll? true"); + + /* DEBUG: PAL wired up to a glue device */ + sim_hw_parse (sd, "/glue@0x31002000"); + sim_hw_parse (sd, "/glue@0x31002000/reg 0x31002000 16"); + sim_hw_parse (sd, "/pal@0x31000000 > countdown int0 /glue@0x31002000"); + sim_hw_parse (sd, "/pal@0x31000000 > timer int1 /glue@0x31002000"); + sim_hw_parse (sd, "/pal@0x31000000 > int int2 /glue@0x31002000"); + sim_hw_parse (sd, "/glue@0x31002000 > int0 int3 /glue@0x31002000"); + sim_hw_parse (sd, "/glue@0x31002000 > int1 int3 /glue@0x31002000"); + sim_hw_parse (sd, "/glue@0x31002000 > int2 int3 /glue@0x31002000"); + + /* REAL: The PAL wired up to the real interrupt controller */ + sim_hw_parse (sd, "/pal@0x31000000 > countdown irq-0 /mn103int"); + sim_hw_parse (sd, "/pal@0x31000000 > timer irq-1 /mn103int"); + sim_hw_parse (sd, "/pal@0x31000000 > int irq-2 /mn103int"); + + /* 8 and 16 bit timers */ + sim_hw_parse (sd, "/mn103tim@0x34001000/reg 0x34001000 36 0x34001080 100 0x34004000 16"); + + /* Hook timer interrupts up to interrupt controller */ + sim_hw_parse (sd, "/mn103tim > timer-0-underflow timer-0-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-1-underflow timer-1-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-2-underflow timer-2-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-3-underflow timer-3-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-4-underflow timer-4-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-5-underflow timer-5-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-6-underflow timer-6-underflow /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-6-compare-a timer-6-compare-a /mn103int"); + sim_hw_parse (sd, "/mn103tim > timer-6-compare-b timer-6-compare-b /mn103int"); + + + /* Serial devices 0,1,2 */ + sim_hw_parse (sd, "/mn103ser@0x34000800/reg 0x34000800 48"); + sim_hw_parse (sd, "/mn103ser@0x34000800/poll? true"); + + /* Hook serial interrupts up to interrupt controller */ + sim_hw_parse (sd, "/mn103ser > serial-0-receive serial-0-receive /mn103int"); + sim_hw_parse (sd, "/mn103ser > serial-0-transmit serial-0-transmit /mn103int"); + sim_hw_parse (sd, "/mn103ser > serial-1-receive serial-1-receive /mn103int"); + sim_hw_parse (sd, "/mn103ser > serial-1-transmit serial-1-transmit /mn103int"); + sim_hw_parse (sd, "/mn103ser > serial-2-receive serial-2-receive /mn103int"); + sim_hw_parse (sd, "/mn103ser > serial-2-transmit serial-2-transmit /mn103int"); + + sim_hw_parse (sd, "/mn103iop@0x36008000/reg 0x36008000 8 0x36008020 8 0x36008040 0xc 0x36008060 8 0x36008080 8"); + + /* Memory control registers */ + sim_do_command (sd, "memory region 0x32000020,0x30"); + /* Cache control register */ + sim_do_command (sd, "memory region 0x20000070,0x4"); + /* Cache purge regions */ + sim_do_command (sd, "memory region 0x28400000,0x800"); + sim_do_command (sd, "memory region 0x28401000,0x800"); + /* DMA registers */ + sim_do_command (sd, "memory region 0x32000100,0xF"); + sim_do_command (sd, "memory region 0x32000200,0xF"); + sim_do_command (sd, "memory region 0x32000400,0xF"); + sim_do_command (sd, "memory region 0x32000800,0xF"); + } + else + { + if ( NULL != board ) + { + printf("Error: invalid --board option.\n"); + return 0; + } + } - /* Hook serial interrupts up to interrupt controller */ - sim_hw_parse (sd, "/mn103ser > serial-0-receive serial-0-receive /mn103int"); - sim_hw_parse (sd, "/mn103ser > serial-0-transmit serial-0-transmit /mn103int"); - sim_hw_parse (sd, "/mn103ser > serial-1-receive serial-0-receive /mn103int"); - sim_hw_parse (sd, "/mn103ser > serial-1-transmit serial-0-transmit /mn103int"); - sim_hw_parse (sd, "/mn103ser > serial-2-receive serial-0-receive /mn103int"); - sim_hw_parse (sd, "/mn103ser > serial-2-transmit serial-0-transmit /mn103int"); - - sim_hw_parse (sd, "/mn103iop@0x36008000/reg 0x36008000 8 0x36008020 8 0x36008040 0xc 0x36008060 8 0x36008080 8"); - } - /* end-sanitize-am30 */ /* check for/establish the a reference program image */ if (sim_analyze_program (sd, @@ -1259,3 +1283,120 @@ sim_store_register (sd, rn, memory, length) State.regs[rn] = get_word (memory); return -1; } + + +void +mn10300_core_signal (SIM_DESC sd, + sim_cpu *cpu, + sim_cia cia, + unsigned map, + int nr_bytes, + address_word addr, + transfer_type transfer, + sim_core_signals sig) +{ + const char *copy = (transfer == read_transfer ? "read" : "write"); + address_word ip = CIA_ADDR (cia); + + switch (sig) + { + case sim_core_unmapped_signal: + sim_io_eprintf (sd, "mn10300-core: %d byte %s to unmapped address 0x%lx at 0x%lx\n", + nr_bytes, copy, + (unsigned long) addr, (unsigned long) ip); + program_interrupt(sd, cpu, cia, SIM_SIGSEGV); + break; + + case sim_core_unaligned_signal: + sim_io_eprintf (sd, "mn10300-core: %d byte %s to unaligned address 0x%lx at 0x%lx\n", + nr_bytes, copy, + (unsigned long) addr, (unsigned long) ip); + program_interrupt(sd, cpu, cia, SIM_SIGBUS); + break; + + default: + sim_engine_abort (sd, cpu, cia, + "mn10300_core_signal - internal error - bad switch"); + } +} + + +void +program_interrupt (SIM_DESC sd, + sim_cpu *cpu, + sim_cia cia, + SIM_SIGNAL sig) +{ + int status; + struct hw *device; + +#ifdef SIM_CPU_EXCEPTION_TRIGGER + SIM_CPU_EXCEPTION_TRIGGER(sd,cpu,cia); +#endif + + /* copy NMI handler code from dv-mn103cpu.c */ + /* XXX: possible infinite recursion if these store_*() calls fail! */ + store_word (SP - 4, CIA_GET (cpu)); + store_half (SP - 8, PSW); + PSW &= ~PSW_IE; + SP = SP - 8; + CIA_SET (cpu, 0x40000008); + + sim_engine_halt(sd, cpu, NULL, cia, sim_stopped, sig); +} + + +void +mn10300_cpu_exception_trigger(SIM_DESC sd, sim_cpu* cpu, address_word cia) +{ + ASSERT(cpu != NULL); + + if(State.exc_suspended > 0) + sim_io_eprintf(sd, "Warning, nested exception triggered (%d)\n", State.exc_suspended); + + CIA_SET (cpu, cia); + memcpy(State.exc_trigger_regs, State.regs, sizeof(State.exc_trigger_regs)); + State.exc_suspended = 0; +} + +void +mn10300_cpu_exception_suspend(SIM_DESC sd, sim_cpu* cpu, int exception) +{ + ASSERT(cpu != NULL); + + if(State.exc_suspended > 0) + sim_io_eprintf(sd, "Warning, nested exception signal (%d then %d)\n", + State.exc_suspended, exception); + + memcpy(State.exc_suspend_regs, State.regs, sizeof(State.exc_suspend_regs)); + memcpy(State.regs, State.exc_trigger_regs, sizeof(State.regs)); + CIA_SET (cpu, PC); /* copy PC back from new State.regs */ + State.exc_suspended = exception; +} + +void +mn10300_cpu_exception_resume(SIM_DESC sd, sim_cpu* cpu, int exception) +{ + ASSERT(cpu != NULL); + + if(exception == 0 && State.exc_suspended > 0) + { + if(State.exc_suspended != SIGTRAP) /* warn not for breakpoints */ + sim_io_eprintf(sd, "Warning, resuming but ignoring pending exception signal (%d)\n", + State.exc_suspended); + } + else if(exception != 0 && State.exc_suspended > 0) + { + if(exception != State.exc_suspended) + sim_io_eprintf(sd, "Warning, resuming with unmatching exception signal (%d vs %d)\n", + State.exc_suspended, exception); + + memcpy(State.regs, State.exc_suspend_regs, sizeof(State.regs)); + CIA_SET (cpu, PC); /* copy PC back from new State.regs */ + } + else if(exception != 0 && State.exc_suspended == 0) + { + sim_io_eprintf(sd, "Warning, ignoring spontanous exception signal (%d)\n", exception); + } + State.exc_suspended = 0; +} -- cgit v1.1