1337 lines
31 KiB
C
1337 lines
31 KiB
C
/* m32r exception, interrupt, and trap (EIT) support
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Copyright (C) 1998-2022 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions & Renesas.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This must come before any other includes. */
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#include "defs.h"
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#include "portability.h"
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#include "sim-main.h"
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#include "sim-signal.h"
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#include "sim-syscall.h"
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#include "sim/callback.h"
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#include "syscall.h"
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include <utime.h>
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/* TODO: The Linux syscall emulation needs work to support non-Linux hosts.
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Use an OS hack for now so the CPU emulation is available everywhere.
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NB: The emulation is also missing argument conversion (endian & bitsize)
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even on Linux hosts. */
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#ifdef __linux__
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#include <sys/mman.h>
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#include <sys/poll.h>
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#include <sys/resource.h>
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#include <sys/sysinfo.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/timeb.h>
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#include <sys/timex.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <sys/utsname.h>
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#include <sys/vfs.h>
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#include <linux/sysctl.h>
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#include <linux/types.h>
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#include <linux/unistd.h>
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#endif
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#define TRAP_LINUX_SYSCALL 2
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#define TRAP_FLUSH_CACHE 12
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/* The semantic code invokes this for invalid (unrecognized) instructions. */
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SEM_PC
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sim_engine_invalid_insn (SIM_CPU *current_cpu, IADDR cia, SEM_PC pc)
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{
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SIM_DESC sd = CPU_STATE (current_cpu);
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#if 0
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if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
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{
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h_bsm_set (current_cpu, h_sm_get (current_cpu));
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h_bie_set (current_cpu, h_ie_get (current_cpu));
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h_bcond_set (current_cpu, h_cond_get (current_cpu));
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/* sm not changed */
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h_ie_set (current_cpu, 0);
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h_cond_set (current_cpu, 0);
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h_bpc_set (current_cpu, cia);
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sim_engine_restart (CPU_STATE (current_cpu), current_cpu, NULL,
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EIT_RSVD_INSN_ADDR);
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}
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else
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#endif
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sim_engine_halt (sd, current_cpu, NULL, cia, sim_stopped, SIM_SIGILL);
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return pc;
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}
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/* Process an address exception. */
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void
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m32r_core_signal (SIM_DESC sd, SIM_CPU *current_cpu, sim_cia cia,
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unsigned int map, int nr_bytes, address_word addr,
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transfer_type transfer, sim_core_signals sig)
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{
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if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
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{
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m32rbf_h_cr_set (current_cpu, H_CR_BBPC,
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m32rbf_h_cr_get (current_cpu, H_CR_BPC));
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switch (MACH_NUM (CPU_MACH (current_cpu)))
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{
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case MACH_M32R:
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m32rbf_h_bpsw_set (current_cpu, m32rbf_h_psw_get (current_cpu));
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/* sm not changed. */
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m32rbf_h_psw_set (current_cpu, m32rbf_h_psw_get (current_cpu) & 0x80);
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break;
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case MACH_M32RX:
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m32rxf_h_bpsw_set (current_cpu, m32rxf_h_psw_get (current_cpu));
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/* sm not changed. */
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m32rxf_h_psw_set (current_cpu, m32rxf_h_psw_get (current_cpu) & 0x80);
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break;
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case MACH_M32R2:
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m32r2f_h_bpsw_set (current_cpu, m32r2f_h_psw_get (current_cpu));
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/* sm not changed. */
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m32r2f_h_psw_set (current_cpu, m32r2f_h_psw_get (current_cpu) & 0x80);
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break;
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default:
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abort ();
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}
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m32rbf_h_cr_set (current_cpu, H_CR_BPC, cia);
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sim_engine_restart (CPU_STATE (current_cpu), current_cpu, NULL,
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EIT_ADDR_EXCP_ADDR);
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}
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else
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sim_core_signal (sd, current_cpu, cia, map, nr_bytes, addr,
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transfer, sig);
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}
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/* Translate target's address to host's address. */
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static void *
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t2h_addr (host_callback *cb, struct cb_syscall *sc,
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unsigned long taddr)
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{
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void *addr;
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SIM_DESC sd = (SIM_DESC) sc->p1;
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SIM_CPU *cpu = (SIM_CPU *) sc->p2;
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if (taddr == 0)
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return NULL;
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return sim_core_trans_addr (sd, cpu, read_map, taddr);
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}
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/* TODO: These functions are a big hack and assume that the host runtime has
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type sizes and struct layouts that match the target. So the Linux emulation
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probaly only really works in 32-bit runtimes. */
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static void
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translate_endian_h2t (void *addr, size_t size)
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{
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unsigned int *p = (unsigned int *) addr;
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int i;
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for (i = 0; i <= size - 4; i += 4,p++)
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*p = H2T_4 (*p);
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if (i <= size - 2)
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*((unsigned short *) p) = H2T_2 (*((unsigned short *) p));
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}
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static void
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translate_endian_t2h (void *addr, size_t size)
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{
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unsigned int *p = (unsigned int *) addr;
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int i;
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for (i = 0; i <= size - 4; i += 4,p++)
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*p = T2H_4 (*p);
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if (i <= size - 2)
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*((unsigned short *) p) = T2H_2 (*((unsigned short *) p));
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}
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/* Trap support.
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The result is the pc address to continue at.
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Preprocessing like saving the various registers has already been done. */
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USI
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m32r_trap (SIM_CPU *current_cpu, PCADDR pc, int num)
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{
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SIM_DESC sd = CPU_STATE (current_cpu);
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host_callback *cb = STATE_CALLBACK (sd);
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if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
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goto case_default;
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switch (num)
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{
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case TRAP_SYSCALL:
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{
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long result, result2;
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int errcode;
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sim_syscall_multi (current_cpu,
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m32rbf_h_gr_get (current_cpu, 0),
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m32rbf_h_gr_get (current_cpu, 1),
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m32rbf_h_gr_get (current_cpu, 2),
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m32rbf_h_gr_get (current_cpu, 3),
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m32rbf_h_gr_get (current_cpu, 4),
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&result, &result2, &errcode);
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m32rbf_h_gr_set (current_cpu, 2, errcode);
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m32rbf_h_gr_set (current_cpu, 0, result);
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m32rbf_h_gr_set (current_cpu, 1, result2);
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break;
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}
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#ifdef __linux__
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case TRAP_LINUX_SYSCALL:
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{
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CB_SYSCALL s;
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unsigned int func, arg1, arg2, arg3, arg4, arg5, arg6, arg7;
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int result, result2, errcode;
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if (STATE_ENVIRONMENT (sd) != USER_ENVIRONMENT)
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goto case_default;
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func = m32rbf_h_gr_get (current_cpu, 7);
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arg1 = m32rbf_h_gr_get (current_cpu, 0);
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arg2 = m32rbf_h_gr_get (current_cpu, 1);
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arg3 = m32rbf_h_gr_get (current_cpu, 2);
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arg4 = m32rbf_h_gr_get (current_cpu, 3);
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arg5 = m32rbf_h_gr_get (current_cpu, 4);
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arg6 = m32rbf_h_gr_get (current_cpu, 5);
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arg7 = m32rbf_h_gr_get (current_cpu, 6);
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CB_SYSCALL_INIT (&s);
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s.func = func;
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s.arg1 = arg1;
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s.arg2 = arg2;
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s.arg3 = arg3;
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s.arg4 = arg4;
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s.arg5 = arg5;
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s.arg6 = arg6;
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s.arg7 = arg7;
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s.p1 = sd;
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s.p2 = current_cpu;
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s.read_mem = sim_syscall_read_mem;
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s.write_mem = sim_syscall_write_mem;
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result = 0;
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result2 = 0;
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errcode = 0;
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switch (func)
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{
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case TARGET_LINUX_SYS_exit:
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sim_engine_halt (sd, current_cpu, NULL, pc, sim_exited, arg1);
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break;
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case TARGET_LINUX_SYS_read:
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result = read (arg1, t2h_addr (cb, &s, arg2), arg3);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_write:
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result = write (arg1, t2h_addr (cb, &s, arg2), arg3);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_open:
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result = open ((char *) t2h_addr (cb, &s, arg1), arg2, arg3);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_close:
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result = close (arg1);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_creat:
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result = creat ((char *) t2h_addr (cb, &s, arg1), arg2);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_link:
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result = link ((char *) t2h_addr (cb, &s, arg1),
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(char *) t2h_addr (cb, &s, arg2));
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_unlink:
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result = unlink ((char *) t2h_addr (cb, &s, arg1));
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_chdir:
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result = chdir ((char *) t2h_addr (cb, &s, arg1));
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_time:
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{
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time_t t;
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if (arg1 == 0)
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{
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result = (int) time (NULL);
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errcode = errno;
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}
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else
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{
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result = (int) time (&t);
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errcode = errno;
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if (result != 0)
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break;
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t = H2T_4 (t);
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if ((s.write_mem) (cb, &s, arg1, (char *) &t, sizeof(t)) != sizeof(t))
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{
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result = -1;
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errcode = EINVAL;
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}
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}
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}
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break;
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case TARGET_LINUX_SYS_mknod:
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result = mknod ((char *) t2h_addr (cb, &s, arg1),
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(mode_t) arg2, (dev_t) arg3);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_chmod:
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result = chmod ((char *) t2h_addr (cb, &s, arg1), (mode_t) arg2);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_lchown32:
|
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case TARGET_LINUX_SYS_lchown:
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result = lchown ((char *) t2h_addr (cb, &s, arg1),
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(uid_t) arg2, (gid_t) arg3);
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errcode = errno;
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break;
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case TARGET_LINUX_SYS_lseek:
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result = (int) lseek (arg1, (off_t) arg2, arg3);
|
||
errcode = errno;
|
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break;
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||
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case TARGET_LINUX_SYS_getpid:
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result = getpid ();
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errcode = errno;
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break;
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||
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case TARGET_LINUX_SYS_getuid32:
|
||
case TARGET_LINUX_SYS_getuid:
|
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result = getuid ();
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errcode = errno;
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break;
|
||
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case TARGET_LINUX_SYS_utime:
|
||
{
|
||
struct utimbuf buf;
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if (arg2 == 0)
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{
|
||
result = utime ((char *) t2h_addr (cb, &s, arg1), NULL);
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||
errcode = errno;
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||
}
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else
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||
{
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||
buf = *((struct utimbuf *) t2h_addr (cb, &s, arg2));
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translate_endian_t2h (&buf, sizeof(buf));
|
||
result = utime ((char *) t2h_addr (cb, &s, arg1), &buf);
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errcode = errno;
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}
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}
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break;
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|
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case TARGET_LINUX_SYS_access:
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result = access ((char *) t2h_addr (cb, &s, arg1), arg2);
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||
errcode = errno;
|
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break;
|
||
|
||
case TARGET_LINUX_SYS_ftime:
|
||
{
|
||
struct timeb t;
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||
|
||
result = ftime (&t);
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errcode = errno;
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||
|
||
if (result != 0)
|
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break;
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||
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||
t.time = H2T_4 (t.time);
|
||
t.millitm = H2T_2 (t.millitm);
|
||
t.timezone = H2T_2 (t.timezone);
|
||
t.dstflag = H2T_2 (t.dstflag);
|
||
if ((s.write_mem) (cb, &s, arg1, (char *) &t, sizeof(t))
|
||
!= sizeof(t))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
|
||
case TARGET_LINUX_SYS_sync:
|
||
sync ();
|
||
result = 0;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_rename:
|
||
result = rename ((char *) t2h_addr (cb, &s, arg1),
|
||
(char *) t2h_addr (cb, &s, arg2));
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_mkdir:
|
||
result = mkdir ((char *) t2h_addr (cb, &s, arg1), arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_rmdir:
|
||
result = rmdir ((char *) t2h_addr (cb, &s, arg1));
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_dup:
|
||
result = dup (arg1);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_brk:
|
||
result = brk ((void *) arg1);
|
||
errcode = errno;
|
||
//result = arg1;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getgid32:
|
||
case TARGET_LINUX_SYS_getgid:
|
||
result = getgid ();
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_geteuid32:
|
||
case TARGET_LINUX_SYS_geteuid:
|
||
result = geteuid ();
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getegid32:
|
||
case TARGET_LINUX_SYS_getegid:
|
||
result = getegid ();
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_ioctl:
|
||
result = ioctl (arg1, arg2, arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fcntl:
|
||
result = fcntl (arg1, arg2, arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_dup2:
|
||
result = dup2 (arg1, arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getppid:
|
||
result = getppid ();
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getpgrp:
|
||
result = getpgrp ();
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getrlimit:
|
||
{
|
||
struct rlimit rlim;
|
||
|
||
result = getrlimit (arg1, &rlim);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&rlim, sizeof(rlim));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &rlim, sizeof(rlim))
|
||
!= sizeof(rlim))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getrusage:
|
||
{
|
||
struct rusage usage;
|
||
|
||
result = getrusage (arg1, &usage);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&usage, sizeof(usage));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &usage, sizeof(usage))
|
||
!= sizeof(usage))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_gettimeofday:
|
||
{
|
||
struct timeval tv;
|
||
struct timezone tz;
|
||
|
||
result = gettimeofday (&tv, &tz);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&tv, sizeof(tv));
|
||
if ((s.write_mem) (cb, &s, arg1, (char *) &tv, sizeof(tv))
|
||
!= sizeof(tv))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
|
||
translate_endian_h2t (&tz, sizeof(tz));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &tz, sizeof(tz))
|
||
!= sizeof(tz))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getgroups32:
|
||
case TARGET_LINUX_SYS_getgroups:
|
||
{
|
||
gid_t *list;
|
||
|
||
if (arg1 > 0)
|
||
list = (gid_t *) malloc (arg1 * sizeof(gid_t));
|
||
|
||
result = getgroups (arg1, list);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (list, arg1 * sizeof(gid_t));
|
||
if (arg1 > 0)
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) list, arg1 * sizeof(gid_t))
|
||
!= arg1 * sizeof(gid_t))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_select:
|
||
{
|
||
int n;
|
||
fd_set readfds;
|
||
fd_set *treadfdsp;
|
||
fd_set *hreadfdsp;
|
||
fd_set writefds;
|
||
fd_set *twritefdsp;
|
||
fd_set *hwritefdsp;
|
||
fd_set exceptfds;
|
||
fd_set *texceptfdsp;
|
||
fd_set *hexceptfdsp;
|
||
struct timeval *ttimeoutp;
|
||
struct timeval timeout;
|
||
|
||
n = arg1;
|
||
|
||
treadfdsp = (fd_set *) arg2;
|
||
if (treadfdsp != NULL)
|
||
{
|
||
readfds = *((fd_set *) t2h_addr (cb, &s, (unsigned int) treadfdsp));
|
||
translate_endian_t2h (&readfds, sizeof(readfds));
|
||
hreadfdsp = &readfds;
|
||
}
|
||
else
|
||
hreadfdsp = NULL;
|
||
|
||
twritefdsp = (fd_set *) arg3;
|
||
if (twritefdsp != NULL)
|
||
{
|
||
writefds = *((fd_set *) t2h_addr (cb, &s, (unsigned int) twritefdsp));
|
||
translate_endian_t2h (&writefds, sizeof(writefds));
|
||
hwritefdsp = &writefds;
|
||
}
|
||
else
|
||
hwritefdsp = NULL;
|
||
|
||
texceptfdsp = (fd_set *) arg4;
|
||
if (texceptfdsp != NULL)
|
||
{
|
||
exceptfds = *((fd_set *) t2h_addr (cb, &s, (unsigned int) texceptfdsp));
|
||
translate_endian_t2h (&exceptfds, sizeof(exceptfds));
|
||
hexceptfdsp = &exceptfds;
|
||
}
|
||
else
|
||
hexceptfdsp = NULL;
|
||
|
||
ttimeoutp = (struct timeval *) arg5;
|
||
timeout = *((struct timeval *) t2h_addr (cb, &s, (unsigned int) ttimeoutp));
|
||
translate_endian_t2h (&timeout, sizeof(timeout));
|
||
|
||
result = select (n, hreadfdsp, hwritefdsp, hexceptfdsp, &timeout);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
if (treadfdsp != NULL)
|
||
{
|
||
translate_endian_h2t (&readfds, sizeof(readfds));
|
||
if ((s.write_mem) (cb, &s, (unsigned long) treadfdsp,
|
||
(char *) &readfds, sizeof(readfds)) != sizeof(readfds))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
|
||
if (twritefdsp != NULL)
|
||
{
|
||
translate_endian_h2t (&writefds, sizeof(writefds));
|
||
if ((s.write_mem) (cb, &s, (unsigned long) twritefdsp,
|
||
(char *) &writefds, sizeof(writefds)) != sizeof(writefds))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
|
||
if (texceptfdsp != NULL)
|
||
{
|
||
translate_endian_h2t (&exceptfds, sizeof(exceptfds));
|
||
if ((s.write_mem) (cb, &s, (unsigned long) texceptfdsp,
|
||
(char *) &exceptfds, sizeof(exceptfds)) != sizeof(exceptfds))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
|
||
translate_endian_h2t (&timeout, sizeof(timeout));
|
||
if ((s.write_mem) (cb, &s, (unsigned long) ttimeoutp,
|
||
(char *) &timeout, sizeof(timeout)) != sizeof(timeout))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_symlink:
|
||
result = symlink ((char *) t2h_addr (cb, &s, arg1),
|
||
(char *) t2h_addr (cb, &s, arg2));
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_readlink:
|
||
result = readlink ((char *) t2h_addr (cb, &s, arg1),
|
||
(char *) t2h_addr (cb, &s, arg2),
|
||
arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_readdir:
|
||
result = (int) readdir ((DIR *) t2h_addr (cb, &s, arg1));
|
||
errcode = errno;
|
||
break;
|
||
|
||
#if 0
|
||
case TARGET_LINUX_SYS_mmap:
|
||
{
|
||
result = (int) mmap ((void *) t2h_addr (cb, &s, arg1),
|
||
arg2, arg3, arg4, arg5, arg6);
|
||
errcode = errno;
|
||
|
||
if (errno == 0)
|
||
{
|
||
sim_core_attach (sd, NULL,
|
||
0, access_read_write_exec, 0,
|
||
result, arg2, 0, NULL, NULL);
|
||
}
|
||
}
|
||
break;
|
||
#endif
|
||
case TARGET_LINUX_SYS_mmap2:
|
||
{
|
||
void *addr;
|
||
size_t len;
|
||
int prot, flags, fildes;
|
||
off_t off;
|
||
|
||
addr = (void *) t2h_addr (cb, &s, arg1);
|
||
len = arg2;
|
||
prot = arg3;
|
||
flags = arg4;
|
||
fildes = arg5;
|
||
off = arg6 << 12;
|
||
|
||
result = (int) mmap (addr, len, prot, flags, fildes, off);
|
||
errcode = errno;
|
||
if (result != -1)
|
||
{
|
||
char c;
|
||
if (sim_core_read_buffer (sd, NULL, read_map, &c, result, 1) == 0)
|
||
sim_core_attach (sd, NULL,
|
||
0, access_read_write_exec, 0,
|
||
result, len, 0, NULL, NULL);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_mmap:
|
||
{
|
||
void *addr;
|
||
size_t len;
|
||
int prot, flags, fildes;
|
||
off_t off;
|
||
|
||
addr = *((void **) t2h_addr (cb, &s, arg1));
|
||
len = *((size_t *) t2h_addr (cb, &s, arg1 + 4));
|
||
prot = *((int *) t2h_addr (cb, &s, arg1 + 8));
|
||
flags = *((int *) t2h_addr (cb, &s, arg1 + 12));
|
||
fildes = *((int *) t2h_addr (cb, &s, arg1 + 16));
|
||
off = *((off_t *) t2h_addr (cb, &s, arg1 + 20));
|
||
|
||
addr = (void *) T2H_4 ((unsigned int) addr);
|
||
len = T2H_4 (len);
|
||
prot = T2H_4 (prot);
|
||
flags = T2H_4 (flags);
|
||
fildes = T2H_4 (fildes);
|
||
off = T2H_4 (off);
|
||
|
||
//addr = (void *) t2h_addr (cb, &s, (unsigned int) addr);
|
||
result = (int) mmap (addr, len, prot, flags, fildes, off);
|
||
errcode = errno;
|
||
|
||
//if (errno == 0)
|
||
if (result != -1)
|
||
{
|
||
char c;
|
||
if (sim_core_read_buffer (sd, NULL, read_map, &c, result, 1) == 0)
|
||
sim_core_attach (sd, NULL,
|
||
0, access_read_write_exec, 0,
|
||
result, len, 0, NULL, NULL);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_munmap:
|
||
result = munmap ((void *)arg1, arg2);
|
||
errcode = errno;
|
||
if (result != -1)
|
||
sim_core_detach (sd, NULL, 0, arg2, result);
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_truncate:
|
||
result = truncate ((char *) t2h_addr (cb, &s, arg1), arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_ftruncate:
|
||
result = ftruncate (arg1, arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fchmod:
|
||
result = fchmod (arg1, arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fchown32:
|
||
case TARGET_LINUX_SYS_fchown:
|
||
result = fchown (arg1, arg2, arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_statfs:
|
||
{
|
||
struct statfs statbuf;
|
||
|
||
result = statfs ((char *) t2h_addr (cb, &s, arg1), &statbuf);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&statbuf, sizeof(statbuf));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &statbuf, sizeof(statbuf))
|
||
!= sizeof(statbuf))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fstatfs:
|
||
{
|
||
struct statfs statbuf;
|
||
|
||
result = fstatfs (arg1, &statbuf);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&statbuf, sizeof(statbuf));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &statbuf, sizeof(statbuf))
|
||
!= sizeof(statbuf))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_syslog:
|
||
result = syslog (arg1, (char *) t2h_addr (cb, &s, arg2));
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_setitimer:
|
||
{
|
||
struct itimerval value, ovalue;
|
||
|
||
value = *((struct itimerval *) t2h_addr (cb, &s, arg2));
|
||
translate_endian_t2h (&value, sizeof(value));
|
||
|
||
if (arg2 == 0)
|
||
{
|
||
result = setitimer (arg1, &value, NULL);
|
||
errcode = errno;
|
||
}
|
||
else
|
||
{
|
||
result = setitimer (arg1, &value, &ovalue);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&ovalue, sizeof(ovalue));
|
||
if ((s.write_mem) (cb, &s, arg3, (char *) &ovalue, sizeof(ovalue))
|
||
!= sizeof(ovalue))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getitimer:
|
||
{
|
||
struct itimerval value;
|
||
|
||
result = getitimer (arg1, &value);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&value, sizeof(value));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &value, sizeof(value))
|
||
!= sizeof(value))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_stat:
|
||
{
|
||
char *buf;
|
||
int buflen;
|
||
struct stat statbuf;
|
||
|
||
result = stat ((char *) t2h_addr (cb, &s, arg1), &statbuf);
|
||
errcode = errno;
|
||
if (result < 0)
|
||
break;
|
||
|
||
buflen = cb_host_to_target_stat (cb, NULL, NULL);
|
||
buf = xmalloc (buflen);
|
||
if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
|
||
{
|
||
/* The translation failed. This is due to an internal
|
||
host program error, not the target's fault. */
|
||
free (buf);
|
||
result = -1;
|
||
errcode = ENOSYS;
|
||
break;
|
||
}
|
||
if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
|
||
{
|
||
free (buf);
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
break;
|
||
}
|
||
free (buf);
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_lstat:
|
||
{
|
||
char *buf;
|
||
int buflen;
|
||
struct stat statbuf;
|
||
|
||
result = lstat ((char *) t2h_addr (cb, &s, arg1), &statbuf);
|
||
errcode = errno;
|
||
if (result < 0)
|
||
break;
|
||
|
||
buflen = cb_host_to_target_stat (cb, NULL, NULL);
|
||
buf = xmalloc (buflen);
|
||
if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
|
||
{
|
||
/* The translation failed. This is due to an internal
|
||
host program error, not the target's fault. */
|
||
free (buf);
|
||
result = -1;
|
||
errcode = ENOSYS;
|
||
break;
|
||
}
|
||
if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
|
||
{
|
||
free (buf);
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
break;
|
||
}
|
||
free (buf);
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fstat:
|
||
{
|
||
char *buf;
|
||
int buflen;
|
||
struct stat statbuf;
|
||
|
||
result = fstat (arg1, &statbuf);
|
||
errcode = errno;
|
||
if (result < 0)
|
||
break;
|
||
|
||
buflen = cb_host_to_target_stat (cb, NULL, NULL);
|
||
buf = xmalloc (buflen);
|
||
if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen)
|
||
{
|
||
/* The translation failed. This is due to an internal
|
||
host program error, not the target's fault. */
|
||
free (buf);
|
||
result = -1;
|
||
errcode = ENOSYS;
|
||
break;
|
||
}
|
||
if ((s.write_mem) (cb, &s, arg2, buf, buflen) != buflen)
|
||
{
|
||
free (buf);
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
break;
|
||
}
|
||
free (buf);
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_sysinfo:
|
||
{
|
||
struct sysinfo info;
|
||
|
||
result = sysinfo (&info);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
info.uptime = H2T_4 (info.uptime);
|
||
info.loads[0] = H2T_4 (info.loads[0]);
|
||
info.loads[1] = H2T_4 (info.loads[1]);
|
||
info.loads[2] = H2T_4 (info.loads[2]);
|
||
info.totalram = H2T_4 (info.totalram);
|
||
info.freeram = H2T_4 (info.freeram);
|
||
info.sharedram = H2T_4 (info.sharedram);
|
||
info.bufferram = H2T_4 (info.bufferram);
|
||
info.totalswap = H2T_4 (info.totalswap);
|
||
info.freeswap = H2T_4 (info.freeswap);
|
||
info.procs = H2T_2 (info.procs);
|
||
#if LINUX_VERSION_CODE >= 0x20400
|
||
info.totalhigh = H2T_4 (info.totalhigh);
|
||
info.freehigh = H2T_4 (info.freehigh);
|
||
info.mem_unit = H2T_4 (info.mem_unit);
|
||
#endif
|
||
if ((s.write_mem) (cb, &s, arg1, (char *) &info, sizeof(info))
|
||
!= sizeof(info))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
#if 0
|
||
case TARGET_LINUX_SYS_ipc:
|
||
{
|
||
result = ipc (arg1, arg2, arg3, arg4,
|
||
(void *) t2h_addr (cb, &s, arg5), arg6);
|
||
errcode = errno;
|
||
}
|
||
break;
|
||
#endif
|
||
|
||
case TARGET_LINUX_SYS_fsync:
|
||
result = fsync (arg1);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_uname:
|
||
/* utsname contains only arrays of char, so it is not necessary
|
||
to translate endian. */
|
||
result = uname ((struct utsname *) t2h_addr (cb, &s, arg1));
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_adjtimex:
|
||
{
|
||
struct timex buf;
|
||
|
||
result = adjtimex (&buf);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&buf, sizeof(buf));
|
||
if ((s.write_mem) (cb, &s, arg1, (char *) &buf, sizeof(buf))
|
||
!= sizeof(buf))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_mprotect:
|
||
result = mprotect ((void *) arg1, arg2, arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fchdir:
|
||
result = fchdir (arg1);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_setfsuid32:
|
||
case TARGET_LINUX_SYS_setfsuid:
|
||
result = setfsuid (arg1);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_setfsgid32:
|
||
case TARGET_LINUX_SYS_setfsgid:
|
||
result = setfsgid (arg1);
|
||
errcode = errno;
|
||
break;
|
||
|
||
#if 0
|
||
case TARGET_LINUX_SYS__llseek:
|
||
{
|
||
loff_t buf;
|
||
|
||
result = _llseek (arg1, arg2, arg3, &buf, arg5);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&buf, sizeof(buf));
|
||
if ((s.write_mem) (cb, &s, t2h_addr (cb, &s, arg4),
|
||
(char *) &buf, sizeof(buf)) != sizeof(buf))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getdents:
|
||
{
|
||
struct dirent dir;
|
||
|
||
result = getdents (arg1, &dir, arg3);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
dir.d_ino = H2T_4 (dir.d_ino);
|
||
dir.d_off = H2T_4 (dir.d_off);
|
||
dir.d_reclen = H2T_2 (dir.d_reclen);
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &dir, sizeof(dir))
|
||
!= sizeof(dir))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
#endif
|
||
|
||
case TARGET_LINUX_SYS_flock:
|
||
result = flock (arg1, arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_msync:
|
||
result = msync ((void *) arg1, arg2, arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_readv:
|
||
{
|
||
struct iovec vector;
|
||
|
||
vector = *((struct iovec *) t2h_addr (cb, &s, arg2));
|
||
translate_endian_t2h (&vector, sizeof(vector));
|
||
|
||
result = readv (arg1, &vector, arg3);
|
||
errcode = errno;
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_writev:
|
||
{
|
||
struct iovec vector;
|
||
|
||
vector = *((struct iovec *) t2h_addr (cb, &s, arg2));
|
||
translate_endian_t2h (&vector, sizeof(vector));
|
||
|
||
result = writev (arg1, &vector, arg3);
|
||
errcode = errno;
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_fdatasync:
|
||
result = fdatasync (arg1);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_mlock:
|
||
result = mlock ((void *) t2h_addr (cb, &s, arg1), arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_munlock:
|
||
result = munlock ((void *) t2h_addr (cb, &s, arg1), arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_nanosleep:
|
||
{
|
||
struct timespec req, rem;
|
||
|
||
req = *((struct timespec *) t2h_addr (cb, &s, arg2));
|
||
translate_endian_t2h (&req, sizeof(req));
|
||
|
||
result = nanosleep (&req, &rem);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
translate_endian_h2t (&rem, sizeof(rem));
|
||
if ((s.write_mem) (cb, &s, arg2, (char *) &rem, sizeof(rem))
|
||
!= sizeof(rem))
|
||
{
|
||
result = -1;
|
||
errcode = EINVAL;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_mremap: /* FIXME */
|
||
result = (int) mremap ((void *) t2h_addr (cb, &s, arg1), arg2, arg3, arg4);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getresuid32:
|
||
case TARGET_LINUX_SYS_getresuid:
|
||
{
|
||
uid_t ruid, euid, suid;
|
||
|
||
result = getresuid (&ruid, &euid, &suid);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
*((uid_t *) t2h_addr (cb, &s, arg1)) = H2T_4 (ruid);
|
||
*((uid_t *) t2h_addr (cb, &s, arg2)) = H2T_4 (euid);
|
||
*((uid_t *) t2h_addr (cb, &s, arg3)) = H2T_4 (suid);
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_poll:
|
||
{
|
||
struct pollfd ufds;
|
||
|
||
ufds = *((struct pollfd *) t2h_addr (cb, &s, arg1));
|
||
ufds.fd = T2H_4 (ufds.fd);
|
||
ufds.events = T2H_2 (ufds.events);
|
||
ufds.revents = T2H_2 (ufds.revents);
|
||
|
||
result = poll (&ufds, arg2, arg3);
|
||
errcode = errno;
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getresgid32:
|
||
case TARGET_LINUX_SYS_getresgid:
|
||
{
|
||
uid_t rgid, egid, sgid;
|
||
|
||
result = getresgid (&rgid, &egid, &sgid);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
*((uid_t *) t2h_addr (cb, &s, arg1)) = H2T_4 (rgid);
|
||
*((uid_t *) t2h_addr (cb, &s, arg2)) = H2T_4 (egid);
|
||
*((uid_t *) t2h_addr (cb, &s, arg3)) = H2T_4 (sgid);
|
||
}
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_pread:
|
||
result = pread (arg1, (void *) t2h_addr (cb, &s, arg2), arg3, arg4);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_pwrite:
|
||
result = pwrite (arg1, (void *) t2h_addr (cb, &s, arg2), arg3, arg4);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_chown32:
|
||
case TARGET_LINUX_SYS_chown:
|
||
result = chown ((char *) t2h_addr (cb, &s, arg1), arg2, arg3);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_getcwd:
|
||
result = (int) getcwd ((char *) t2h_addr (cb, &s, arg1), arg2);
|
||
errcode = errno;
|
||
break;
|
||
|
||
case TARGET_LINUX_SYS_sendfile:
|
||
{
|
||
off_t offset;
|
||
|
||
offset = *((off_t *) t2h_addr (cb, &s, arg3));
|
||
offset = T2H_4 (offset);
|
||
|
||
result = sendfile (arg1, arg2, &offset, arg3);
|
||
errcode = errno;
|
||
|
||
if (result != 0)
|
||
break;
|
||
|
||
*((off_t *) t2h_addr (cb, &s, arg3)) = H2T_4 (offset);
|
||
}
|
||
break;
|
||
|
||
default:
|
||
result = -1;
|
||
errcode = ENOSYS;
|
||
break;
|
||
}
|
||
|
||
if (result == -1)
|
||
m32rbf_h_gr_set (current_cpu, 0, -errcode);
|
||
else
|
||
m32rbf_h_gr_set (current_cpu, 0, result);
|
||
break;
|
||
}
|
||
#endif
|
||
|
||
case TRAP_BREAKPOINT:
|
||
sim_engine_halt (sd, current_cpu, NULL, pc,
|
||
sim_stopped, SIM_SIGTRAP);
|
||
break;
|
||
|
||
case TRAP_FLUSH_CACHE:
|
||
/* Do nothing. */
|
||
break;
|
||
|
||
case_default:
|
||
default:
|
||
{
|
||
/* The new pc is the trap vector entry.
|
||
We assume there's a branch there to some handler.
|
||
Use cr5 as EVB (EIT Vector Base) register. */
|
||
/* USI new_pc = EIT_TRAP_BASE_ADDR + num * 4; */
|
||
USI new_pc = m32rbf_h_cr_get (current_cpu, 5) + 0x40 + num * 4;
|
||
return new_pc;
|
||
}
|
||
}
|
||
|
||
/* Fake an "rte" insn. */
|
||
/* FIXME: Should duplicate all of rte processing. */
|
||
return (pc & -4) + 4;
|
||
}
|