diff options
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index b453a3985..5c14c1e87 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -309,7 +309,6 @@ void cpu_loop(CPUX86State *env) env->regs[8], env->regs[9], 0, 0); - env->eip = env->exception_next_eip; break; #endif case EXCP0B_NOSEG: @@ -1007,7 +1006,6 @@ void cpu_loop(CPUARMState *env) CPUState *cs = CPU(arm_env_get_cpu(env)); int trapnr, sig; target_siginfo_t info; - uint32_t addr; for (;;) { cpu_exec_start(cs); @@ -1043,12 +1041,11 @@ void cpu_loop(CPUARMState *env) /* fall through for segv */ case EXCP_PREFETCH_ABORT: case EXCP_DATA_ABORT: - addr = env->exception.vaddress; info.si_signo = SIGSEGV; info.si_errno = 0; /* XXX: check env->error_code */ info.si_code = TARGET_SEGV_MAPERR; - info._sifields._sigfault._addr = addr; + info._sifields._sigfault._addr = env->exception.vaddress; queue_signal(env, info.si_signo, &info); break; case EXCP_DEBUG: @@ -3459,8 +3456,7 @@ CPUArchState *cpu_copy(CPUArchState *env) cpu_breakpoint_insert(new_cpu, bp->pc, bp->flags, NULL); } QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) { - cpu_watchpoint_insert(new_cpu, wp->vaddr, (~wp->len_mask) + 1, - wp->flags, NULL); + cpu_watchpoint_insert(new_cpu, wp->vaddr, wp->len, wp->flags, NULL); } #endif @@ -3548,6 +3544,17 @@ static void handle_arg_pagesize(const char *arg) } } +static void handle_arg_randseed(const char *arg) +{ + unsigned long long seed; + + if (parse_uint_full(arg, &seed, 0) != 0 || seed > UINT_MAX) { + fprintf(stderr, "Invalid seed number: %s\n", arg); + exit(1); + } + srand(seed); +} + static void handle_arg_gdb(const char *arg) { gdbstub_port = atoi(arg); @@ -3676,6 +3683,8 @@ static const struct qemu_argument arg_table[] = { "", "run in singlestep mode"}, {"strace", "QEMU_STRACE", false, handle_arg_strace, "", "log system calls"}, + {"seed", "QEMU_RAND_SEED", true, handle_arg_randseed, + "", "Seed for pseudo-random number generator"}, {"version", "QEMU_VERSION", false, handle_arg_version, "", "display version information and exit"}, {NULL, NULL, false, NULL, NULL, NULL} @@ -3858,6 +3867,8 @@ int main(int argc, char **argv, char **envp) cpudef_setup(); /* parse cpu definitions in target config file (TBD) */ #endif + srand(time(NULL)); + optind = parse_args(argc, argv); /* Zero out regs */ @@ -3928,6 +3939,10 @@ int main(int argc, char **argv, char **envp) do_strace = 1; } + if (getenv("QEMU_RAND_SEED")) { + handle_arg_randseed(getenv("QEMU_RAND_SEED")); + } + target_environ = envlist_to_environ(envlist, NULL); envlist_free(envlist); |