diff options
Diffstat (limited to 'tools/perf/util/parse-events.l')
| -rw-r--r-- | tools/perf/util/parse-events.l | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 6deb70c25984..7629af3d5c7c 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -190,11 +190,16 @@ name [a-zA-Z_*?\[\]][a-zA-Z0-9_*?.\[\]!\-]* name_tag [\'][a-zA-Z_*?\[\]][a-zA-Z0-9_*?\-,\.\[\]:=]*[\'] name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.:]* drv_cfg_term [a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)? -/* If you add a modifier you need to update check_modifier() */ +/* + * If you add a modifier you need to update check_modifier(). + * Also, the letters in modifier_event must not be in modifier_bp. + */ modifier_event [ukhpPGHSDIWeb]+ modifier_bp [rwx]{1,3} lc_type (L1-dcache|l1-d|l1d|L1-data|L1-icache|l1-i|l1i|L1-instruction|LLC|L2|dTLB|d-tlb|Data-TLB|iTLB|i-tlb|Instruction-TLB|branch|branches|bpu|btb|bpc|node) lc_op_result (load|loads|read|store|stores|write|prefetch|prefetches|speculative-read|speculative-load|refs|Reference|ops|access|misses|miss) +digit [0-9] +non_digit [^0-9] %% @@ -304,8 +309,20 @@ r0x{num_raw_hex} { return str(yyscanner, PE_RAW); } <mem>{ {modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); } -: { return ':'; } -"/" { return '/'; } + /* + * The colon before memory access modifiers can get mixed up with the + * colon before event modifiers. Fortunately none of the option letters + * are the same, so trailing context can be used disambiguate the two + * cases. + */ +":"/{modifier_bp} { return str(yyscanner, PE_BP_COLON); } + /* + * The slash before memory length can get mixed up with the slash before + * config terms. Fortunately config terms do not start with a numeric + * digit, so trailing context can be used disambiguate the two cases. + */ +"/"/{digit} { return str(yyscanner, PE_BP_SLASH); } +"/"/{non_digit} { BEGIN(config); return '/'; } {num_dec} { return value(yyscanner, 10); } {num_hex} { return value(yyscanner, 16); } /* |