diff options
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/elfload.c | 2 | ||||
| -rw-r--r-- | linux-user/main.c | 45 | ||||
| -rw-r--r-- | linux-user/signal.c | 159 | ||||
| -rw-r--r-- | linux-user/syscall.c | 10 | ||||
| -rw-r--r-- | linux-user/syscall_defs.h | 11 | ||||
| -rw-r--r-- | linux-user/tilegx/syscall.h | 3 |
6 files changed, 210 insertions, 20 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index fdae6a6cd1..d68f5a16ca 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2853,7 +2853,7 @@ static int fill_note_info(struct elf_note_info *info, TaskState *ts = (TaskState *)cpu->opaque; int i; - info->notes = g_malloc0(NUMNOTES * sizeof (struct memelfnote)); + info->notes = g_new0(struct memelfnote, NUMNOTES); if (info->notes == NULL) return (-ENOMEM); info->prstatus = g_malloc0(sizeof (*info->prstatus)); diff --git a/linux-user/main.c b/linux-user/main.c index 6599a41404..8acfe0fdf4 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -215,7 +215,7 @@ void cpu_list_unlock(void) uint64_t cpu_get_tsc(CPUX86State *env) { - return cpu_get_real_ticks(); + return cpu_get_host_ticks(); } static void write_dt(void *ptr, unsigned long addr, unsigned long limit, @@ -1425,7 +1425,7 @@ void cpu_loop (CPUSPARCState *env) #ifdef TARGET_PPC static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env) { - return cpu_get_real_ticks(); + return cpu_get_host_ticks(); } uint64_t cpu_ppc_load_tbl(CPUPPCState *env) @@ -3414,28 +3414,47 @@ void cpu_loop(CPUS390XState *env) #ifdef TARGET_TILEGX -static void gen_sigsegv_maperr(CPUTLGState *env, target_ulong addr) +static void gen_sigill_reg(CPUTLGState *env) { target_siginfo_t info; - info.si_signo = TARGET_SIGSEGV; + info.si_signo = TARGET_SIGILL; info.si_errno = 0; - info.si_code = TARGET_SEGV_MAPERR; - info._sifields._sigfault._addr = addr; + info.si_code = TARGET_ILL_PRVREG; + info._sifields._sigfault._addr = env->pc; queue_signal(env, info.si_signo, &info); } -static void gen_sigill_reg(CPUTLGState *env) +static void do_signal(CPUTLGState *env, int signo, int sigcode) { target_siginfo_t info; - info.si_signo = TARGET_SIGILL; + info.si_signo = signo; info.si_errno = 0; - info.si_code = TARGET_ILL_PRVREG; info._sifields._sigfault._addr = env->pc; + + if (signo == TARGET_SIGSEGV) { + /* The passed in sigcode is a dummy; check for a page mapping + and pass either MAPERR or ACCERR. */ + target_ulong addr = env->excaddr; + info._sifields._sigfault._addr = addr; + if (page_check_range(addr, 1, PAGE_VALID) < 0) { + sigcode = TARGET_SEGV_MAPERR; + } else { + sigcode = TARGET_SEGV_ACCERR; + } + } + info.si_code = sigcode; + queue_signal(env, info.si_signo, &info); } +static void gen_sigsegv_maperr(CPUTLGState *env, target_ulong addr) +{ + env->excaddr = addr; + do_signal(env, TARGET_SIGSEGV, 0); +} + static void set_regval(CPUTLGState *env, uint8_t reg, uint64_t val) { if (unlikely(reg >= TILEGX_R_COUNT)) { @@ -3622,13 +3641,13 @@ void cpu_loop(CPUTLGState *env) case TILEGX_EXCP_OPCODE_FETCHOR4: do_fetch(env, trapnr, false); break; + case TILEGX_EXCP_SIGNAL: + do_signal(env, env->signo, env->sigcode); + break; case TILEGX_EXCP_REG_IDN_ACCESS: case TILEGX_EXCP_REG_UDN_ACCESS: gen_sigill_reg(env); break; - case TILEGX_EXCP_SEGV: - gen_sigsegv_maperr(env, env->excaddr); - break; default: fprintf(stderr, "trapnr is %d[0x%x].\n", trapnr, trapnr); g_assert_not_reached(); @@ -4251,7 +4270,7 @@ int main(int argc, char **argv, char **envp) } target_argv[target_argc] = NULL; - ts = g_malloc0 (sizeof(TaskState)); + ts = g_new0(TaskState, 1); init_task_state(ts); /* build Task State */ ts->info = info; diff --git a/linux-user/signal.c b/linux-user/signal.c index ac82baa0f0..9d62e027e3 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -5537,6 +5537,163 @@ long do_rt_sigreturn(CPUAlphaState *env) force_sig(TARGET_SIGSEGV); } +#elif defined(TARGET_TILEGX) + +struct target_sigcontext { + union { + /* General-purpose registers. */ + abi_ulong gregs[56]; + struct { + abi_ulong __gregs[53]; + abi_ulong tp; /* Aliases gregs[TREG_TP]. */ + abi_ulong sp; /* Aliases gregs[TREG_SP]. */ + abi_ulong lr; /* Aliases gregs[TREG_LR]. */ + }; + }; + abi_ulong pc; /* Program counter. */ + abi_ulong ics; /* In Interrupt Critical Section? */ + abi_ulong faultnum; /* Fault number. */ + abi_ulong pad[5]; +}; + +struct target_ucontext { + abi_ulong tuc_flags; + abi_ulong tuc_link; + target_stack_t tuc_stack; + struct target_sigcontext tuc_mcontext; + target_sigset_t tuc_sigmask; /* mask last for extensibility */ +}; + +struct target_rt_sigframe { + unsigned char save_area[16]; /* caller save area */ + struct target_siginfo info; + struct target_ucontext uc; +}; + +static void setup_sigcontext(struct target_sigcontext *sc, + CPUArchState *env, int signo) +{ + int i; + + for (i = 0; i < TILEGX_R_COUNT; ++i) { + __put_user(env->regs[i], &sc->gregs[i]); + } + + __put_user(env->pc, &sc->pc); + __put_user(0, &sc->ics); + __put_user(signo, &sc->faultnum); +} + +static void restore_sigcontext(CPUTLGState *env, struct target_sigcontext *sc) +{ + int i; + + for (i = 0; i < TILEGX_R_COUNT; ++i) { + __get_user(env->regs[i], &sc->gregs[i]); + } + + __get_user(env->pc, &sc->pc); +} + +static abi_ulong get_sigframe(struct target_sigaction *ka, CPUArchState *env, + size_t frame_size) +{ + unsigned long sp = env->regs[TILEGX_R_SP]; + + if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size))) { + return -1UL; + } + + if ((ka->sa_flags & SA_ONSTACK) && !sas_ss_flags(sp)) { + sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; + } + + sp -= frame_size; + sp &= -16UL; + return sp; +} + +static void setup_rt_frame(int sig, struct target_sigaction *ka, + target_siginfo_t *info, + target_sigset_t *set, CPUArchState *env) +{ + abi_ulong frame_addr; + struct target_rt_sigframe *frame; + unsigned long restorer; + + frame_addr = get_sigframe(ka, env, sizeof(*frame)); + if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) { + goto give_sigsegv; + } + + /* Always write at least the signal number for the stack backtracer. */ + if (ka->sa_flags & TARGET_SA_SIGINFO) { + /* At sigreturn time, restore the callee-save registers too. */ + tswap_siginfo(&frame->info, info); + /* regs->flags |= PT_FLAGS_RESTORE_REGS; FIXME: we can skip it? */ + } else { + __put_user(info->si_signo, &frame->info.si_signo); + } + + /* Create the ucontext. */ + __put_user(0, &frame->uc.tuc_flags); + __put_user(0, &frame->uc.tuc_link); + __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp); + __put_user(sas_ss_flags(env->regs[TILEGX_R_SP]), + &frame->uc.tuc_stack.ss_flags); + __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size); + setup_sigcontext(&frame->uc.tuc_mcontext, env, info->si_signo); + + restorer = (unsigned long) do_rt_sigreturn; + if (ka->sa_flags & TARGET_SA_RESTORER) { + restorer = (unsigned long) ka->sa_restorer; + } + env->pc = (unsigned long) ka->_sa_handler; + env->regs[TILEGX_R_SP] = (unsigned long) frame; + env->regs[TILEGX_R_LR] = restorer; + env->regs[0] = (unsigned long) sig; + env->regs[1] = (unsigned long) &frame->info; + env->regs[2] = (unsigned long) &frame->uc; + /* regs->flags |= PT_FLAGS_CALLER_SAVES; FIXME: we can skip it? */ + + unlock_user_struct(frame, frame_addr, 1); + return; + +give_sigsegv: + if (sig == TARGET_SIGSEGV) { + ka->_sa_handler = TARGET_SIG_DFL; + } + force_sig(TARGET_SIGSEGV /* , current */); +} + +long do_rt_sigreturn(CPUTLGState *env) +{ + abi_ulong frame_addr = env->regs[TILEGX_R_SP]; + struct target_rt_sigframe *frame; + sigset_t set; + + if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) { + goto badframe; + } + target_to_host_sigset(&set, &frame->uc.tuc_sigmask); + do_sigprocmask(SIG_SETMASK, &set, NULL); + + restore_sigcontext(env, &frame->uc.tuc_mcontext); + if (do_sigaltstack(frame_addr + offsetof(struct target_rt_sigframe, + uc.tuc_stack), + 0, env->regs[TILEGX_R_SP]) == -EFAULT) { + goto badframe; + } + + unlock_user_struct(frame, frame_addr, 0); + return env->regs[TILEGX_R_RE]; + + + badframe: + unlock_user_struct(frame, frame_addr, 0); + force_sig(TARGET_SIGSEGV); +} + #else static void setup_frame(int sig, struct target_sigaction *ka, @@ -5657,7 +5814,7 @@ void process_pending_signals(CPUArchState *cpu_env) #endif /* prepare the stack frame of the virtual CPU */ #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64) \ - || defined(TARGET_OPENRISC) + || defined(TARGET_OPENRISC) || defined(TARGET_TILEGX) /* These targets do not have traditional signals. */ setup_rt_frame(sig, sa, &q->info, &target_old_set, cpu_env); #else diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 98b5766d4a..8bfb24f05b 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2728,8 +2728,9 @@ static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, } static inline abi_long do_semctl(int semid, int semnum, int cmd, - union target_semun target_su) + abi_ulong target_arg) { + union target_semun target_su = { .buf = target_arg }; union semun arg; struct semid_ds dsarg; unsigned short *array = NULL; @@ -3251,8 +3252,7 @@ static abi_long do_ipc(unsigned int call, abi_long first, * ptr argument. */ abi_ulong atptr; get_user_ual(atptr, ptr); - ret = do_semctl(first, second, third, - (union target_semun) atptr); + ret = do_semctl(first, second, third, atptr); break; } @@ -4566,7 +4566,7 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, new_thread_info info; pthread_attr_t attr; - ts = g_malloc0(sizeof(TaskState)); + ts = g_new0(TaskState, 1); init_task_state(ts); /* we create a new CPU instance. */ new_env = cpu_copy(env); @@ -7550,7 +7550,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_NR_semctl case TARGET_NR_semctl: - ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4); + ret = do_semctl(arg1, arg2, arg3, arg4); break; #endif #ifdef TARGET_NR_msgctl diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 7ca33a6f62..f996acf945 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -748,6 +748,10 @@ typedef struct target_siginfo { #define TARGET_ILL_PRVREG (6) /* privileged register */ #define TARGET_ILL_COPROC (7) /* coprocessor error */ #define TARGET_ILL_BADSTK (8) /* internal stack error */ +#ifdef TARGET_TILEGX +#define TARGET_ILL_DBLFLT (9) /* double fault */ +#define TARGET_ILL_HARDWALL (10) /* user networks hardwall violation */ +#endif /* * SIGFPE si_codes @@ -767,6 +771,7 @@ typedef struct target_siginfo { */ #define TARGET_SEGV_MAPERR (1) /* address not mapped to object */ #define TARGET_SEGV_ACCERR (2) /* invalid permissions for mapped object */ +#define TARGET_SEGV_BNDERR (3) /* failed address bound checks */ /* * SIGBUS si_codes @@ -774,12 +779,18 @@ typedef struct target_siginfo { #define TARGET_BUS_ADRALN (1) /* invalid address alignment */ #define TARGET_BUS_ADRERR (2) /* non-existent physical address */ #define TARGET_BUS_OBJERR (3) /* object specific hardware error */ +/* hardware memory error consumed on a machine check: action required */ +#define TARGET_BUS_MCEERR_AR (4) +/* hardware memory error detected in process but not consumed: action optional*/ +#define TARGET_BUS_MCEERR_AO (5) /* * SIGTRAP si_codes */ #define TARGET_TRAP_BRKPT (1) /* process breakpoint */ #define TARGET_TRAP_TRACE (2) /* process trace trap */ +#define TARGET_TRAP_BRANCH (3) /* process taken branch trap */ +#define TARGET_TRAP_HWBKPT (4) /* hardware breakpoint/watchpoint */ #endif /* defined(TARGET_I386) || defined(TARGET_ARM) */ diff --git a/linux-user/tilegx/syscall.h b/linux-user/tilegx/syscall.h index 653ece13d8..a938d4e90c 100644 --- a/linux-user/tilegx/syscall.h +++ b/linux-user/tilegx/syscall.h @@ -37,4 +37,7 @@ struct target_pt_regs { #define TARGET_MLOCKALL_MCL_CURRENT 1 #define TARGET_MLOCKALL_MCL_FUTURE 2 +/* For faultnum */ +#define TARGET_INT_SWINT_1 14 + #endif |