diff options
| -rw-r--r-- | kernel/trace/trace_events_filter.c | 80 |
1 files changed, 48 insertions, 32 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index e1c7e2cdc240..1ba7a6b86f55 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -145,34 +145,50 @@ struct pred_stack { /* If not of not match is equal to not of not, then it is a match */ #define DEFINE_COMPARISON_PRED(type) \ -static int filter_pred_##type(struct filter_pred *pred, void *event) \ +static int filter_pred_LT_##type(struct filter_pred *pred, void *event) \ { \ type *addr = (type *)(event + pred->offset); \ type val = (type)pred->val; \ - int match = 0; \ - \ - switch (pred->op) { \ - case OP_LT: \ - match = (*addr < val); \ - break; \ - case OP_LE: \ - match = (*addr <= val); \ - break; \ - case OP_GT: \ - match = (*addr > val); \ - break; \ - case OP_GE: \ - match = (*addr >= val); \ - break; \ - case OP_BAND: \ - match = (*addr & val); \ - break; \ - default: \ - break; \ - } \ - \ + int match = (*addr < val); \ return !!match == !pred->not; \ -} +} \ +static int filter_pred_LE_##type(struct filter_pred *pred, void *event) \ +{ \ + type *addr = (type *)(event + pred->offset); \ + type val = (type)pred->val; \ + int match = (*addr <= val); \ + return !!match == !pred->not; \ +} \ +static int filter_pred_GT_##type(struct filter_pred *pred, void *event) \ +{ \ + type *addr = (type *)(event + pred->offset); \ + type val = (type)pred->val; \ + int match = (*addr > val); \ + return !!match == !pred->not; \ +} \ +static int filter_pred_GE_##type(struct filter_pred *pred, void *event) \ +{ \ + type *addr = (type *)(event + pred->offset); \ + type val = (type)pred->val; \ + int match = (*addr >= val); \ + return !!match == !pred->not; \ +} \ +static int filter_pred_BAND_##type(struct filter_pred *pred, void *event) \ +{ \ + type *addr = (type *)(event + pred->offset); \ + type val = (type)pred->val; \ + int match = !!(*addr & val); \ + return match == !pred->not; \ +} \ +static const filter_pred_fn_t pred_funcs_##type[] = { \ + filter_pred_LT_##type, \ + filter_pred_LE_##type, \ + filter_pred_GT_##type, \ + filter_pred_GE_##type, \ + filter_pred_BAND_##type, \ +}; + +#define PRED_FUNC_START OP_LT #define DEFINE_EQUALITY_PRED(size) \ static int filter_pred_##size(struct filter_pred *pred, void *event) \ @@ -982,33 +998,33 @@ static filter_pred_fn_t select_comparison_fn(int op, int field_size, if (op == OP_EQ || op == OP_NE) fn = filter_pred_64; else if (field_is_signed) - fn = filter_pred_s64; + fn = pred_funcs_s64[op - PRED_FUNC_START]; else - fn = filter_pred_u64; + fn = pred_funcs_u64[op - PRED_FUNC_START]; break; case 4: if (op == OP_EQ || op == OP_NE) fn = filter_pred_32; else if (field_is_signed) - fn = filter_pred_s32; + fn = pred_funcs_s32[op - PRED_FUNC_START]; else - fn = filter_pred_u32; + fn = pred_funcs_u32[op - PRED_FUNC_START]; break; case 2: if (op == OP_EQ || op == OP_NE) fn = filter_pred_16; else if (field_is_signed) - fn = filter_pred_s16; + fn = pred_funcs_s16[op - PRED_FUNC_START]; else - fn = filter_pred_u16; + fn = pred_funcs_u16[op - PRED_FUNC_START]; break; case 1: if (op == OP_EQ || op == OP_NE) fn = filter_pred_8; else if (field_is_signed) - fn = filter_pred_s8; + fn = pred_funcs_s8[op - PRED_FUNC_START]; else - fn = filter_pred_u8; + fn = pred_funcs_u8[op - PRED_FUNC_START]; break; } |