diff options
Diffstat (limited to 'gcc/gcov-io.h')
| -rw-r--r-- | gcc/gcov-io.h | 49 |
1 files changed, 33 insertions, 16 deletions
diff --git a/gcc/gcov-io.h b/gcc/gcov-io.h index e512783e89d..769fd8a276f 100644 --- a/gcc/gcov-io.h +++ b/gcc/gcov-io.h @@ -223,7 +223,7 @@ typedef HOST_WIDEST_INT gcov_type; #define gcov_read_counter __gcov_read_counter #define gcov_read_summary __gcov_read_summary -/* Poison these, so they don't accidentally slip in. */ +/* Poison these, so they don't accidentally slip in. */ #pragma GCC poison gcov_write_string gcov_write_tag gcov_write_length #pragma GCC poison gcov_read_string gcov_sync gcov_time @@ -268,16 +268,26 @@ typedef HOST_WIDEST_INT gcov_type; /* Counters that are collected. */ #define GCOV_COUNTER_ARCS 0 /* Arc transitions. */ #define GCOV_COUNTERS_SUMMABLE 1 /* Counters which can be - summaried. */ -#define GCOV_COUNTERS 1 - -/* A list of human readable names of the counters */ -#define GCOV_COUNTER_NAMES {"arcs"} - -/* Names of merge functions for counters. */ -#define GCOV_MERGE_FUNCTIONS {"__gcov_merge_add"} - -/* Convert a counter index to a tag. */ + summaried. */ +#define GCOV_COUNTER_V_INTERVAL 1 /* Histogram of value inside an interval. */ +#define GCOV_COUNTER_V_POW2 2 /* Histogram of exact power2 logarithm + of a value. */ +#define GCOV_COUNTER_V_SINGLE 3 /* The most common value of expression. */ +#define GCOV_COUNTER_V_DELTA 4 /* The most common difference between + consecutive values of expression. */ +#define GCOV_COUNTERS 5 + + /* A list of human readable names of the counters */ +#define GCOV_COUNTER_NAMES {"arcs", "interval", "pow2", "single", "delta"} + + /* Names of merge functions for counters. */ +#define GCOV_MERGE_FUNCTIONS {"__gcov_merge_add", \ + "__gcov_merge_add", \ + "__gcov_merge_add", \ + "__gcov_merge_single", \ + "__gcov_merge_delta"} + +/* Convert a counter index to a tag. */ #define GCOV_TAG_FOR_COUNTER(COUNT) \ (GCOV_TAG_COUNTER_BASE + ((gcov_unsigned_t)(COUNT) << 17)) /* Convert a tag to a counter. */ @@ -316,9 +326,9 @@ struct gcov_ctr_summary { gcov_unsigned_t num; /* number of counters. */ gcov_unsigned_t runs; /* number of program runs */ - gcov_type sum_all; /* sum of all counters accumulated. */ + 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_type sum_max; /* sum of individual run max values. */ }; /* Object & program summary record. */ @@ -380,6 +390,13 @@ extern void __gcov_flush (void); /* The merge function that just sums the counters. */ extern void __gcov_merge_add (gcov_type *, unsigned); + +/* The merge function to choose the most often value. */ +extern void __gcov_merge_single (gcov_type *, unsigned); + +/* The merge function to choose the most often difference between consecutive + values. */ +extern void __gcov_merge_delta (gcov_type *, unsigned); #endif /* IN_LIBGCOV */ #if IN_LIBGCOV >= 0 @@ -391,8 +408,8 @@ GCOV_LINKAGE struct gcov_var { FILE *file; gcov_position_t start; /* Position of first byte of block */ - unsigned offset; /* Read/write position within the block. */ - unsigned length; /* Read limit in the block. */ + unsigned offset; /* Read/write position within the block. */ + unsigned length; /* Read limit in the block. */ unsigned overread; /* Number of bytes overread. */ int error; /* < 0 overflow, > 0 disk error. */ int mode; /* < 0 writing, > 0 reading */ @@ -417,7 +434,7 @@ GCOV_LINKAGE struct gcov_var may use the gcov_write functions, gcov_seek & gcov_error. When a file is to be rewritten you use the functions for reading, then gcov_rewrite then the functions for writing. Your file may become - corrupted if you break these invariants. */ + corrupted if you break these invariants. */ GCOV_LINKAGE int gcov_open (const char */*name*/, int /*truncate*/); GCOV_LINKAGE int gcov_close (void); |