diff options
Diffstat (limited to 'gcc/gcov-io.h')
| -rw-r--r-- | gcc/gcov-io.h | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/gcc/gcov-io.h b/gcc/gcov-io.h index 972dc93..e1532d7 100644 --- a/gcc/gcov-io.h +++ b/gcc/gcov-io.h @@ -139,7 +139,9 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see counts: header int64:count* summary: int32:checksum {count-summary}GCOV_COUNTERS_SUMMABLE count-summary: int32:num int32:runs int64:sum - int64:max int64:sum_max + int64:max int64:sum_max histogram + histogram: {int32:bitvector}8 histogram-buckets* + histogram-buckets: int32:num int64:min int64:sum The ANNOUNCE_FUNCTION record is the same as that in the note file, but without the source location. The COUNTS gives the @@ -171,8 +173,10 @@ typedef unsigned gcov_unsigned_t __attribute__ ((mode (SI))); typedef unsigned gcov_position_t __attribute__ ((mode (SI))); #if LONG_LONG_TYPE_SIZE > 32 typedef signed gcov_type __attribute__ ((mode (DI))); +typedef unsigned gcov_type_unsigned __attribute__ ((mode (DI))); #else typedef signed gcov_type __attribute__ ((mode (SI))); +typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI))); #endif #else #if BITS_PER_UNIT == 16 @@ -180,16 +184,20 @@ typedef unsigned gcov_unsigned_t __attribute__ ((mode (HI))); typedef unsigned gcov_position_t __attribute__ ((mode (HI))); #if LONG_LONG_TYPE_SIZE > 32 typedef signed gcov_type __attribute__ ((mode (SI))); +typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI))); #else typedef signed gcov_type __attribute__ ((mode (HI))); +typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI))); #endif #else typedef unsigned gcov_unsigned_t __attribute__ ((mode (QI))); typedef unsigned gcov_position_t __attribute__ ((mode (QI))); #if LONG_LONG_TYPE_SIZE > 32 typedef signed gcov_type __attribute__ ((mode (HI))); +typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI))); #else typedef signed gcov_type __attribute__ ((mode (QI))); +typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI))); #endif #endif #endif @@ -210,6 +218,7 @@ typedef unsigned gcov_position_t; #if IN_GCOV #define GCOV_LINKAGE static typedef HOST_WIDEST_INT gcov_type; +typedef unsigned HOST_WIDEST_INT gcov_type_unsigned; #if IN_GCOV > 0 #include <sys/types.h> #endif @@ -309,8 +318,9 @@ typedef HOST_WIDEST_INT gcov_type; #define GCOV_TAG_COUNTER_NUM(LENGTH) ((LENGTH) / 2) #define GCOV_TAG_OBJECT_SUMMARY ((gcov_unsigned_t)0xa1000000) /* Obsolete */ #define GCOV_TAG_PROGRAM_SUMMARY ((gcov_unsigned_t)0xa3000000) -#define GCOV_TAG_SUMMARY_LENGTH \ - (1 + GCOV_COUNTERS_SUMMABLE * (2 + 3 * 2)) +#define GCOV_TAG_SUMMARY_LENGTH(NUM) \ + (1 + GCOV_COUNTERS_SUMMABLE * (10 + 3 * 2) + (NUM) * 5) + /* Counters that are collected. */ #define GCOV_COUNTER_ARCS 0 /* Arc transitions. */ @@ -389,6 +399,29 @@ typedef HOST_WIDEST_INT gcov_type; /* Structured records. */ +/* Structure used for each bucket of the log2 histogram of counter values. */ +typedef struct +{ + /* Number of counters whose profile count falls within the bucket. */ + gcov_unsigned_t num_counters; + /* Smallest profile count included in this bucket. */ + gcov_type min_value; + /* Cumulative value of the profile counts in this bucket. */ + gcov_type cum_value; +} gcov_bucket_type; + +/* For a log2 scale histogram with each range split into 4 + linear sub-ranges, there will be at most 64 (max gcov_type bit size) - 1 log2 + ranges since the lowest 2 log2 values share the lowest 4 linear + sub-range (values 0 - 3). This is 252 total entries (63*4). */ + +#define GCOV_HISTOGRAM_SIZE 252 + +/* How many unsigned ints are required to hold a bit vector of non-zero + histogram entries when the histogram is written to the gcov file. + This is essentially a ceiling divide by 32 bits. */ +#define GCOV_HISTOGRAM_BITVECTOR_SIZE (GCOV_HISTOGRAM_SIZE + 31) / 32 + /* Cumulative counter data. */ struct gcov_ctr_summary { @@ -397,6 +430,8 @@ struct gcov_ctr_summary gcov_type sum_all; /* sum of all counters accumulated. */ gcov_type run_max; /* maximum value on a single run. */ gcov_type sum_max; /* sum of individual run max values. */ + gcov_bucket_type histogram[GCOV_HISTOGRAM_SIZE]; /* histogram of + counter values. */ }; /* Object & program summary record. */ |