X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Fstate.c;h=405f3d0214ccb9b590eadd0db98b5cd175da1dba;hb=c4a725690071a04eb0b118d9061d9e4a7ec2d397;hp=c9b2b5ca1b7aac658413e28edd38c8574dd38133;hpb=a89931d6eb5035884800aa1bd96b3a00d23e5a6f;p=lttv.git diff --git a/ltt/branches/poly/lttv/lttv/state.c b/ltt/branches/poly/lttv/lttv/state.c index c9b2b5ca..405f3d02 100644 --- a/ltt/branches/poly/lttv/lttv/state.c +++ b/ltt/branches/poly/lttv/lttv/state.c @@ -112,7 +112,6 @@ LttvExecutionSubmode LttvProcessStatus LTTV_STATE_UNNAMED, - LTTV_STATE_UNBRANDED, LTTV_STATE_WAIT_FORK, LTTV_STATE_WAIT_CPU, LTTV_STATE_EXIT, @@ -121,6 +120,9 @@ LttvProcessStatus LTTV_STATE_RUN, LTTV_STATE_DEAD; +GQuark + LTTV_STATE_UNBRANDED; + LttvProcessType LTTV_STATE_USER_THREAD, LTTV_STATE_KERNEL_THREAD; @@ -255,8 +257,9 @@ restore_init_state(LttvTraceState *self) &g_array_index(self->running_process[i]->execution_stack, LttvExecutionState, 0); es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; - self->running_process[i]->state->s = LTTV_STATE_RUN; + //self->running_process[i]->state->s = LTTV_STATE_RUN; self->running_process[i]->cpu = i; } @@ -1821,6 +1824,7 @@ lttv_state_find_process_or_create(LttvTraceState *ts, guint cpu, guint pid, process->state = es = &g_array_index(process->execution_stack, LttvExecutionState, 0); es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; } return process; } @@ -2140,24 +2144,30 @@ static gboolean schedchange(void *hook_data, void *call_data) //if(unlikely(process->pid != pid_out)) { // g_assert(process->pid == 0); //} - if(process->pid == 0 && process->state->t == LTTV_STATE_MODE_UNKNOWN) { - /* Scheduling out of pid 0 at beginning of the trace : - * we know for sure it is in syscall mode at this point. */ - g_assert(process->execution_stack->len == 1); - process->state->t = LTTV_STATE_SYSCALL; - } - if(unlikely(process->state->s == LTTV_STATE_EXIT)) { - process->state->s = LTTV_STATE_ZOMBIE; - process->state->change = s->parent.timestamp; + if(process->pid == 0 + && process->state->t == LTTV_STATE_MODE_UNKNOWN) { + if(pid_out == 0) { + /* Scheduling out of pid 0 at beginning of the trace : + * we know for sure it is in syscall mode at this point. */ + g_assert(process->execution_stack->len == 1); + process->state->t = LTTV_STATE_SYSCALL; + process->state->s = LTTV_STATE_WAIT; + process->state->change = s->parent.timestamp; + } } else { - if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU; - else process->state->s = LTTV_STATE_WAIT; - process->state->change = s->parent.timestamp; + if(unlikely(process->state->s == LTTV_STATE_EXIT)) { + process->state->s = LTTV_STATE_ZOMBIE; + process->state->change = s->parent.timestamp; + } else { + if(unlikely(state_out == 0)) process->state->s = LTTV_STATE_WAIT_CPU; + else process->state->s = LTTV_STATE_WAIT; + process->state->change = s->parent.timestamp; + } + + if(state_out == 32) + exit_process(s, process); /* EXIT_DEAD */ + /* see sched.h for states */ } - - if(state_out == 32) - exit_process(s, process); /* EXIT_DEAD */ - /* see sched.h for states */ } process = ts->running_process[cpu] = lttv_state_find_process_or_create( @@ -2396,11 +2406,12 @@ static void fix_process(gpointer key, gpointer value, es = &g_array_index(process->execution_stack, LttvExecutionState, 0); if(es->t == LTTV_STATE_MODE_UNKNOWN) { es->t = LTTV_STATE_SYSCALL; - es->s = LTTV_STATE_WAIT; es->n = LTTV_STATE_SUBMODE_NONE; es->entry = *timestamp; es->change = *timestamp; es->cum_cpu_time = ltt_time_zero; + if(es->s == LTTV_STATE_UNNAMED) + es->s = LTTV_STATE_WAIT; } } else { es = &g_array_index(process->execution_stack, LttvExecutionState, 0); @@ -2411,7 +2422,8 @@ static void fix_process(gpointer key, gpointer value, //g_assert(timestamp->tv_sec != 0); es->change = *timestamp; es->cum_cpu_time = ltt_time_zero; - es->s = LTTV_STATE_RUN; + if(es->s == LTTV_STATE_UNNAMED) + es->s = LTTV_STATE_RUN; if(process->execution_stack->len == 1) { /* Still in user mode, means never scheduled */ @@ -2465,6 +2477,7 @@ static gboolean enum_process_state(void *hook_data, void *call_data) LttField *f4, *f5, *f6, *f7, *f8; GQuark type, mode, submode, status; LttvExecutionState *es; + guint i, nb_cpus; /* PID */ pid = ltt_event_get_unsigned(e, thf->f1); @@ -2501,88 +2514,111 @@ static gboolean enum_process_state(void *hook_data, void *call_data) if(f8) tgid = ltt_event_get_unsigned(e, f8); else tgid = 0; - /* The process might exist if a process was forked while performing the state - * dump. */ - process = lttv_state_find_process(ts, ANY_CPU, pid); - if(process == NULL) { - parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); - process = lttv_state_create_process(ts, parent_process, cpu, - pid, tgid, g_quark_from_string(command), - &s->parent.timestamp); - - /* Keep the stack bottom : a running user mode */ - /* Disabled because of inconsistencies in the current statedump states. */ - if(type == LTTV_STATE_KERNEL_THREAD) { - /* Only keep the bottom - * FIXME Kernel thread : can be in syscall or interrupt or trap. */ - /* Will cause expected trap when in fact being syscall (even after end of - * statedump event) - * Will cause expected interrupt when being syscall. (only before end of - * statedump event) */ - // This will cause a "popping last state on stack, ignoring it." - process->execution_stack = g_array_set_size(process->execution_stack, 1); - es = process->state = &g_array_index(process->execution_stack, - LttvExecutionState, 0); + + if(pid == 0) { + nb_cpus = ltt_trace_get_num_cpu(ts->parent.t); + for(i=0; ippid = parent_pid; + process->tgid = tgid; + process->name = g_quark_from_string(command); + es = + &g_array_index(process->execution_stack, LttvExecutionState, 0); process->type = LTTV_STATE_KERNEL_THREAD; - es->t = LTTV_STATE_MODE_UNKNOWN; - es->s = LTTV_STATE_UNNAMED; - es->n = LTTV_STATE_SUBMODE_UNKNOWN; -#if 0 - es->t = LTTV_STATE_SYSCALL; - es->s = status; - es->n = submode; -#endif //0 + } + + } else { + /* The process might exist if a process was forked while performing the + * state dump. */ + process = lttv_state_find_process(ts, ANY_CPU, pid); + if(process == NULL) { + parent_process = lttv_state_find_process(ts, ANY_CPU, parent_pid); + process = lttv_state_create_process(ts, parent_process, cpu, + pid, tgid, g_quark_from_string(command), + &s->parent.timestamp); + + /* Keep the stack bottom : a running user mode */ + /* Disabled because of inconsistencies in the current statedump states. */ + if(type == LTTV_STATE_KERNEL_THREAD) { + /* Only keep the bottom + * FIXME Kernel thread : can be in syscall or interrupt or trap. */ + /* Will cause expected trap when in fact being syscall (even after end of + * statedump event) + * Will cause expected interrupt when being syscall. (only before end of + * statedump event) */ + // This will cause a "popping last state on stack, ignoring it." + process->execution_stack = g_array_set_size(process->execution_stack, 1); + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 0); + process->type = LTTV_STATE_KERNEL_THREAD; + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + es->n = LTTV_STATE_SUBMODE_UNKNOWN; + #if 0 + es->t = LTTV_STATE_SYSCALL; + es->s = status; + es->n = submode; + #endif //0 + } else { + /* User space process : + * bottom : user mode + * either currently running or scheduled out. + * can be scheduled out because interrupted in (user mode or in syscall) + * or because of an explicit call to the scheduler in syscall. Note that + * the scheduler call comes after the irq_exit, so never in interrupt + * context. */ + // temp workaround : set size to 1 : only have user mode bottom of stack. + // will cause g_info message of expected syscall mode when in fact being + // in user mode. Can also cause expected trap when in fact being user + // mode in the event of a page fault reenabling interrupts in the handler. + // Expected syscall and trap can also happen after the end of statedump + // This will cause a "popping last state on stack, ignoring it." + process->execution_stack = g_array_set_size(process->execution_stack, 1); + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 0); + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + es->n = LTTV_STATE_SUBMODE_UNKNOWN; + #if 0 + es->t = LTTV_STATE_USER_MODE; + es->s = status; + es->n = submode; + #endif //0 + } + #if 0 + /* UNKNOWN STATE */ + { + es = process->state = &g_array_index(process->execution_stack, + LttvExecutionState, 1); + es->t = LTTV_STATE_MODE_UNKNOWN; + es->s = LTTV_STATE_UNNAMED; + es->n = LTTV_STATE_SUBMODE_UNKNOWN; + } + #endif //0 } else { - /* User space process : - * bottom : user mode - * either currently running or scheduled out. - * can be scheduled out because interrupted in (user mode or in syscall) - * or because of an explicit call to the scheduler in syscall. Note that - * the scheduler call comes after the irq_exit, so never in interrupt - * context. */ - // temp workaround : set size to 1 : only have user mode bottom of stack. - // will cause g_info message of expected syscall mode when in fact being - // in user mode. Can also cause expected trap when in fact being user - // mode in the event of a page fault reenabling interrupts in the handler. - // Expected syscall and trap can also happen after the end of statedump - // This will cause a "popping last state on stack, ignoring it." - process->execution_stack = g_array_set_size(process->execution_stack, 1); - es = process->state = &g_array_index(process->execution_stack, - LttvExecutionState, 0); - es->t = LTTV_STATE_MODE_UNKNOWN; - es->s = LTTV_STATE_UNNAMED; - es->n = LTTV_STATE_SUBMODE_UNKNOWN; + /* The process has already been created : + * Probably was forked while dumping the process state or + * was simply scheduled in prior to get the state dump event. + */ + process->ppid = parent_pid; + process->tgid = tgid; + process->name = g_quark_from_string(command); + process->type = type; + es = + &g_array_index(process->execution_stack, LttvExecutionState, 0); #if 0 - es->t = LTTV_STATE_USER_MODE; - es->s = status; - es->n = submode; + if(es->t == LTTV_STATE_MODE_UNKNOWN) { + if(type == LTTV_STATE_KERNEL_THREAD) + es->t = LTTV_STATE_SYSCALL; + else + es->t = LTTV_STATE_USER_MODE; + } #endif //0 + /* Don't mess around with the stack, it will eventually become + * ok after the end of state dump. */ } -#if 0 - /* UNKNOWN STATE */ - { - es = process->state = &g_array_index(process->execution_stack, - LttvExecutionState, 1); - es->t = LTTV_STATE_MODE_UNKNOWN; - es->s = LTTV_STATE_UNNAMED; - es->n = LTTV_STATE_SUBMODE_UNKNOWN; - } -#endif //0 - } else { - /* The process has already been created : - * Probably was forked while dumping the process state or - * was simply scheduled in prior to get the state dump event. - * We know for sure if it is a user space thread. - */ - process->ppid = parent_pid; - process->tgid = tgid; - process->name = g_quark_from_string(command); - es = - &g_array_index(process->execution_stack, LttvExecutionState, 0); - if(type != LTTV_STATE_KERNEL_THREAD) - es->t = LTTV_STATE_USER_MODE; - /* Don't mess around with the stack, it will eventually become - * ok after the end of state dump. */ } return FALSE;