X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Flttv%2Flttv%2Fstate.c;h=18518e87f557fcb5636df6c17fdf9c6c65a3051d;hb=fecfcfdcae6306201df726be35f6c568468b3f3f;hp=86847728b155b69cec8e32ce0ca0fed475f186d5;hpb=d4942a23e9af529bb00d29af0f3b07ce58aae358;p=lttv.git diff --git a/ltt/branches/poly/lttv/lttv/state.c b/ltt/branches/poly/lttv/lttv/state.c index 86847728..18518e87 100644 --- a/ltt/branches/poly/lttv/lttv/state.c +++ b/ltt/branches/poly/lttv/lttv/state.c @@ -35,6 +35,7 @@ GQuark LTT_FACILITY_KERNEL, + LTT_FACILITY_KERNEL_ARCH, LTT_FACILITY_PROCESS, LTT_FACILITY_FS; @@ -47,6 +48,8 @@ GQuark LTT_EVENT_TRAP_EXIT, LTT_EVENT_IRQ_ENTRY, LTT_EVENT_IRQ_EXIT, + LTT_EVENT_SOFT_IRQ_ENTRY, + LTT_EVENT_SOFT_IRQ_EXIT, LTT_EVENT_SCHEDCHANGE, LTT_EVENT_FORK, LTT_EVENT_EXIT, @@ -59,6 +62,7 @@ GQuark LTT_FIELD_SYSCALL_ID, LTT_FIELD_TRAP_ID, LTT_FIELD_IRQ_ID, + LTT_FIELD_SOFT_IRQ_ID, LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, @@ -72,7 +76,8 @@ LttvExecutionMode LTTV_STATE_USER_MODE, LTTV_STATE_SYSCALL, LTTV_STATE_TRAP, - LTTV_STATE_IRQ; + LTTV_STATE_IRQ, + LTTV_STATE_SOFT_IRQ; LttvExecutionSubmode LTTV_STATE_SUBMODE_UNKNOWN, @@ -85,7 +90,8 @@ LttvProcessStatus LTTV_STATE_EXIT, LTTV_STATE_ZOMBIE, LTTV_STATE_WAIT, - LTTV_STATE_RUN; + LTTV_STATE_RUN, + LTTV_STATE_DEAD; static GQuark LTTV_STATE_TRACEFILES, @@ -726,6 +732,7 @@ typedef struct _LttvNameTables { GQuark *syscall_names; GQuark *trap_names; GQuark *irq_names; + GQuark *soft_irq_names; } LttvNameTables; @@ -767,7 +774,7 @@ create_name_tables(LttvTraceState *tcs) } #endif //0 if(lttv_trace_find_hook(tcs->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, LTT_FIELD_SYSCALL_ID, 0, 0, NULL, NULL, &h)) return; @@ -779,20 +786,17 @@ create_name_tables(LttvTraceState *tcs) lttv_trace_hook_destroy(&h); - /* CHECK syscalls should be an enum but currently are not! name_tables->syscall_names = g_new(GQuark, nb); for(i = 0 ; i < nb ; i++) { - name_tables->syscall_names[i] = g_quark_from_string( - ltt_enum_string_get(t, i)); + name_tables->syscall_names[i] = ltt_enum_string_get(t, i); } - */ - name_tables->syscall_names = g_new(GQuark, 256); - for(i = 0 ; i < 256 ; i++) { - g_string_printf(fe_name, "syscall %d", i); - name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); - } + //name_tables->syscall_names = g_new(GQuark, 256); + //for(i = 0 ; i < 256 ; i++) { + // g_string_printf(fe_name, "syscall %d", i); + // name_tables->syscall_names[i] = g_quark_from_string(fe_name->str); + //} if(lttv_trace_find_hook(tcs->parent.t, LTT_FACILITY_KERNEL, LTT_EVENT_TRAP_ENTRY, @@ -803,7 +807,7 @@ create_name_tables(LttvTraceState *tcs) thf = lttv_trace_hook_get_first(&h); t = ltt_field_type(thf->f1); - nb = ltt_type_element_number(t); + //nb = ltt_type_element_number(t); lttv_trace_hook_destroy(&h); @@ -830,7 +834,7 @@ create_name_tables(LttvTraceState *tcs) thf = lttv_trace_hook_get_first(&h); t = ltt_field_type(thf->f1); - nb = ltt_type_element_number(t); + //nb = ltt_type_element_number(t); lttv_trace_hook_destroy(&h); @@ -847,6 +851,20 @@ create_name_tables(LttvTraceState *tcs) name_tables->irq_names[i] = g_quark_from_string(fe_name->str); } + /* + name_tables->soft_irq_names = g_new(GQuark, nb); + for(i = 0 ; i < nb ; i++) { + name_tables->soft_irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i)); + } + */ + + name_tables->soft_irq_names = g_new(GQuark, 256); + for(i = 0 ; i < 256 ; i++) { + g_string_printf(fe_name, "softirq %d", i); + name_tables->soft_irq_names[i] = g_quark_from_string(fe_name->str); + } + + g_string_free(fe_name, TRUE); } @@ -866,6 +884,7 @@ get_name_tables(LttvTraceState *tcs) tcs->syscall_names = name_tables->syscall_names; tcs->trap_names = name_tables->trap_names; tcs->irq_names = name_tables->irq_names; + tcs->soft_irq_names = name_tables->soft_irq_names; } @@ -885,6 +904,7 @@ free_name_tables(LttvTraceState *tcs) g_free(name_tables->syscall_names); g_free(name_tables->trap_names); g_free(name_tables->irq_names); + g_free(name_tables->soft_irq_names); g_free(name_tables); } @@ -1178,6 +1198,37 @@ static gboolean irq_exit(void *hook_data, void *call_data) return FALSE; } +static gboolean soft_irq_entry(void *hook_data, void *call_data) +{ + LttvTracefileState *s = (LttvTracefileState *)call_data; + LttEvent *e = ltt_tracefile_get_event(s->parent.tf); + guint8 fac_id = ltt_event_facility_id(e); + guint8 ev_id = ltt_event_eventtype_id(e); + LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; + // g_assert(lttv_trace_hook_get_first((LttvTraceHook *)hook_data)->f1 != NULL); + g_assert(thf->f1 != NULL); + // g_assert(thf == lttv_trace_hook_get_first((LttvTraceHook *)hook_data)); + LttField *f = thf->f1; + + LttvExecutionSubmode submode; + + submode = ((LttvTraceState *)(s->parent.t_context))->soft_irq_names[ + ltt_event_get_unsigned(e, f)]; + + /* Do something with the info about being in user or system mode when int? */ + push_state(s, LTTV_STATE_SOFT_IRQ, submode); + return FALSE; +} + + +static gboolean soft_irq_exit(void *hook_data, void *call_data) +{ + LttvTracefileState *s = (LttvTracefileState *)call_data; + + pop_state(s, LTTV_STATE_SOFT_IRQ); + return FALSE; +} + static gboolean schedchange(void *hook_data, void *call_data) { @@ -1211,18 +1262,16 @@ static gboolean schedchange(void *hook_data, void *call_data) 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; - } /* FIXME : we do not remove process here, because the kernel - * still has them : they may be zombies. We need to know - * exactly when release_task is executed on the PID to - * know when the zombie is destroyed. - */ - //else - // exit_process(s, process); - - process->state->change = s->parent.timestamp; + process->state->change = s->parent.timestamp; + } + + 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( @@ -1263,7 +1312,7 @@ static gboolean process_fork(void *hook_data, void *call_data) * in a SMP case where we don't have enough precision on the clocks. * * Test reenabled after precision fixes on time. (Mathieu) */ - +#if 0 zombie_process = lttv_state_find_process(ts, ANY_CPU, child_pid); if(unlikely(zombie_process != NULL)) { @@ -1273,12 +1322,12 @@ static gboolean process_fork(void *hook_data, void *call_data) guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); guint i; for(i=0; i< num_cpus; i++) { - g_assert(process != ts->running_process[i]); + g_assert(zombie_process != ts->running_process[i]); } exit_process(s, zombie_process); } - +#endif //0 g_assert(process->pid != child_pid); // FIXME : Add this test in the "known state" section // g_assert(process->pid == parent_pid); @@ -1288,10 +1337,13 @@ static gboolean process_fork(void *hook_data, void *call_data) child_pid, &s->parent.timestamp); } else { /* The process has already been created : due to time imprecision between - * multiple CPUs : it has been scheduled in before creation. + * multiple CPUs : it has been scheduled in before creation. Note that we + * shouldn't have this kind of imprecision. * * Simply put a correct parent. */ + g_assert(0); /* This is a problematic case : the process has been created + before the fork event */ child_process->ppid = process->pid; } @@ -1346,15 +1398,21 @@ static gboolean process_free(void *hook_data, void *call_data) //Clearly due to time imprecision, we disable it. (Mathieu) //If this weird case happen, we have no choice but to put the //Currently running process on the cpu to 0. + //I re-enable it following time precision fixes. (Mathieu) + //Well, in the case where an process is freed by a process on another CPU + //and still scheduled, it happens that this is the schedchange that will + //drop the last reference count. Do not free it here! guint num_cpus = ltt_trace_get_num_cpu(ts->parent.t); guint i; for(i=0; i< num_cpus; i++) { //g_assert(process != ts->running_process[i]); if(process == ts->running_process[i]) { - ts->running_process[i] = lttv_state_find_process(ts, i, 0); + //ts->running_process[i] = lttv_state_find_process(ts, i, 0); + break; } } - exit_process(s, process); + if(i == num_cpus) /* process is not scheduled */ + exit_process(s, process); } return FALSE; @@ -1367,15 +1425,22 @@ static gboolean process_exec(void *hook_data, void *call_data) LttvTraceState *ts = (LttvTraceState*)s->parent.t_context; LttEvent *e = ltt_tracefile_get_event(s->parent.tf); LttvTraceHookByFacility *thf = (LttvTraceHookByFacility *)hook_data; - gchar *name; + //gchar *name; guint cpu = ltt_tracefile_num(s->parent.tf); LttvProcessState *process = ts->running_process[cpu]; /* PID of the process to release */ - name = ltt_event_get_string(e, thf->f1); - - process->name = g_quark_from_string(name); - + guint64 name_len = ltt_event_field_element_number(e, thf->f1); + //name = ltt_event_get_string(e, thf->f1); + LttField *child = ltt_event_field_element_select(e, thf->f1, 0); + gchar *name_begin = + (gchar*)(ltt_event_data(e)+ltt_event_field_offset(e, child)); + gchar *null_term_name = g_new(gchar, name_len+1); + memcpy(null_term_name, name_begin, name_len); + null_term_name[name_len] = '\0'; + + process->name = g_quark_from_string(null_term_name); + g_free(null_term_name); return FALSE; } @@ -1418,17 +1483,17 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) /* Find the eventtype id for the following events and register the associated by id hooks. */ - hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 11); - hooks = g_array_set_size(hooks, 11); + hooks = g_array_sized_new(FALSE, FALSE, sizeof(LttvTraceHook), 13); + hooks = g_array_set_size(hooks, 13); ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_ENTRY, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_ENTRY, LTT_FIELD_SYSCALL_ID, 0, 0, syscall_entry, NULL, &g_array_index(hooks, LttvTraceHook, 0)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, - LTT_FACILITY_KERNEL, LTT_EVENT_SYSCALL_EXIT, + LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_SYSCALL_EXIT, 0, 0, 0, syscall_exit, NULL, &g_array_index(hooks, LttvTraceHook, 1)); g_assert(!ret); @@ -1457,34 +1522,46 @@ void lttv_state_add_event_hooks(LttvTracesetState *self) irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, 5)); g_assert(!ret); + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY, + LTT_FIELD_SOFT_IRQ_ID, 0, 0, + soft_irq_entry, NULL, &g_array_index(hooks, LttvTraceHook, 6)); + g_assert(!ret); + + ret = lttv_trace_find_hook(ts->parent.t, + LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT, + 0, 0, 0, + soft_irq_exit, NULL, &g_array_index(hooks, LttvTraceHook, 7)); + g_assert(!ret); + ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_PROCESS, LTT_EVENT_SCHEDCHANGE, LTT_FIELD_OUT, LTT_FIELD_IN, LTT_FIELD_OUT_STATE, - schedchange, NULL, &g_array_index(hooks, LttvTraceHook, 6)); + schedchange, NULL, &g_array_index(hooks, LttvTraceHook, 8)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_PROCESS, LTT_EVENT_FORK, LTT_FIELD_PARENT_PID, LTT_FIELD_CHILD_PID, 0, - process_fork, NULL, &g_array_index(hooks, LttvTraceHook, 7)); + process_fork, NULL, &g_array_index(hooks, LttvTraceHook, 9)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_PROCESS, LTT_EVENT_EXIT, LTT_FIELD_PID, 0, 0, - process_exit, NULL, &g_array_index(hooks, LttvTraceHook, 8)); + process_exit, NULL, &g_array_index(hooks, LttvTraceHook, 10)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_PROCESS, LTT_EVENT_FREE, LTT_FIELD_PID, 0, 0, - process_free, NULL, &g_array_index(hooks, LttvTraceHook, 9)); + process_free, NULL, &g_array_index(hooks, LttvTraceHook, 11)); g_assert(!ret); ret = lttv_trace_find_hook(ts->parent.t, LTT_FACILITY_FS, LTT_EVENT_EXEC, LTT_FIELD_FILENAME, 0, 0, - process_exec, NULL, &g_array_index(hooks, LttvTraceHook, 10)); + process_exec, NULL, &g_array_index(hooks, LttvTraceHook, 12)); g_assert(!ret); @@ -1858,7 +1935,7 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) ts = (LttvTraceState *)self->parent.traces[i]; nb_tracefile = ts->parent.tracefiles->len; - guint *event_count; + guint *event_count = NULL; for(j = 0 ; j < nb_tracefile ; j++) { tfs = @@ -1867,7 +1944,7 @@ void lttv_state_save_remove_event_hooks(LttvTracesetState *self) event_count = lttv_hooks_remove(tfs->parent.event, state_save_event_hook); } - g_free(event_count); + if(event_count) g_free(event_count); } } @@ -2117,6 +2194,7 @@ static void module_init() LTTV_STATE_SYSCALL = g_quark_from_string("system call"); LTTV_STATE_TRAP = g_quark_from_string("trap"); LTTV_STATE_IRQ = g_quark_from_string("irq"); + LTTV_STATE_SOFT_IRQ = g_quark_from_string("softirq"); LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("unknown submode"); LTTV_STATE_SUBMODE_NONE = g_quark_from_string("(no submode)"); LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu"); @@ -2124,6 +2202,7 @@ static void module_init() LTTV_STATE_ZOMBIE = g_quark_from_string("zombie"); LTTV_STATE_WAIT = g_quark_from_string("wait for I/O"); LTTV_STATE_RUN = g_quark_from_string("running"); + LTTV_STATE_DEAD = g_quark_from_string("dead"); LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles"); LTTV_STATE_PROCESSES = g_quark_from_string("processes"); LTTV_STATE_PROCESS = g_quark_from_string("process"); @@ -2139,6 +2218,7 @@ static void module_init() LTT_FACILITY_KERNEL = g_quark_from_string("kernel"); + LTT_FACILITY_KERNEL_ARCH = g_quark_from_string("kernel_arch"); LTT_FACILITY_PROCESS = g_quark_from_string("process"); LTT_FACILITY_FS = g_quark_from_string("fs"); @@ -2149,6 +2229,8 @@ static void module_init() LTT_EVENT_TRAP_EXIT = g_quark_from_string("trap_exit"); LTT_EVENT_IRQ_ENTRY = g_quark_from_string("irq_entry"); LTT_EVENT_IRQ_EXIT = g_quark_from_string("irq_exit"); + LTT_EVENT_SOFT_IRQ_ENTRY = g_quark_from_string("soft_irq_entry"); + LTT_EVENT_SOFT_IRQ_EXIT = g_quark_from_string("soft_irq_exit"); LTT_EVENT_SCHEDCHANGE = g_quark_from_string("schedchange"); LTT_EVENT_FORK = g_quark_from_string("fork"); LTT_EVENT_EXIT = g_quark_from_string("exit"); @@ -2159,6 +2241,7 @@ static void module_init() LTT_FIELD_SYSCALL_ID = g_quark_from_string("syscall_id"); LTT_FIELD_TRAP_ID = g_quark_from_string("trap_id"); LTT_FIELD_IRQ_ID = g_quark_from_string("irq_id"); + LTT_FIELD_SOFT_IRQ_ID = g_quark_from_string("softirq_id"); LTT_FIELD_OUT = g_quark_from_string("out"); LTT_FIELD_IN = g_quark_from_string("in"); LTT_FIELD_OUT_STATE = g_quark_from_string("out_state");