99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/* Copyright (C) 1996-2018 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/**
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* This file has excerpts from gcc libgcc/libgcov.h and gcc/gcov-io.h.
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* Which is governed by section 7 of additional permissions.
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*/
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#ifndef _COVERAGE_H_
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#define _COVERAGE_H_
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#if (__GNUC__ >= 8)
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#define GCOV_COUNTERS 9U
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#else
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#define GCOV_COUNTERS 10U
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#endif
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typedef u64_t gcov_type;
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#define GCOV_TAG_FUNCTION_LENGTH 3
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#define GCOV_DATA_MAGIC (0x67636461)
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#define GCOV_TAG_FUNCTION (0x01000000)
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#define GCOV_TAG_COUNTER_BASE (0x01a10000)
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#define GCOV_TAG_FOR_COUNTER(count) \
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(GCOV_TAG_COUNTER_BASE + ((u32_t) (count) << 17))
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#define FILE_START_INDICATOR '*'
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#define GCOV_DUMP_SEPARATOR '<'
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/**Information about counters for a single function
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*
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* This data is generated by gcc during compilation and doesn't change
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* at run-time with the exception of the values array.
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*/
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struct gcov_ctr_info {
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unsigned int num; /* number of counter values for this type */
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gcov_type *values; /* array of counter values for this type */
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};
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/**
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* Profiling meta data per function
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*
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* This data is generated by gcc during compilation and doesn't change
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* at run-time.
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*
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* Information about a single function. This uses the trailing array
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* idiom. The number of counters is determined from the merge pointer
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* array in gcov_info. The key is used to detect which of a set of
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* comdat functions was selected -- it points to the gcov_info object
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* of the object file containing the selected comdat function.
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*/
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struct gcov_fn_info {
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const struct gcov_info *key; /* comdat key */
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unsigned int ident; /* unique ident of function */
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unsigned int lineno_checksum; /* function lineo_checksum */
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unsigned int cfg_checksum; /* function cfg checksum */
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struct gcov_ctr_info ctrs[0]; /* instrumented counters */
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};
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/** Profiling data per object file
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*
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* This data is generated by gcc during compilation and doesn't change
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* at run-time with the exception of the next pointer.
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*/
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struct gcov_info {
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unsigned int version; /* Gcov version (same as GCC version) */
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struct gcov_info *next; /* List head for a singly-linked list */
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unsigned int stamp; /* Uniquifying time stamp */
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const char *filename; /* Name of the associated gcda data file */
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/* merge functions, null for unused*/
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void (*merge[GCOV_COUNTERS])(gcov_type *, unsigned int);
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unsigned int n_functions; /* number of instrumented functions */
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struct gcov_fn_info **functions; /* function information */
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};
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#endif /* _COVERAGE_H_ */
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