/* Header file for libgcov-*.c. Copyright (C) 1996-2014 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see . */ #ifndef GCC_LIBGCOV_H #define GCC_LIBGCOV_H /* work around the poisoned malloc/calloc in system.h. */ #ifndef xmalloc #define xmalloc malloc #endif #ifndef xcalloc #define xcalloc calloc #endif #include "tconfig.h" #include "tsystem.h" #include "coretypes.h" #include "tm.h" #include "libgcc_tm.h" #if BITS_PER_UNIT == 8 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 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 #if defined (TARGET_POSIX_IO) #define GCOV_LOCKED 1 #else #define GCOV_LOCKED 0 #endif #if defined(inhibit_libc) #define IN_LIBGCOV (-1) #else #define IN_LIBGCOV 1 #if defined(L_gcov) #define GCOV_LINKAGE /* nothing */ #endif #endif /* In libgcov we need these functions to be extern, so prefix them with __gcov. In libgcov they must also be hidden so that the instance in the executable is not also used in a DSO. */ #define gcov_var __gcov_var #define gcov_open __gcov_open #define gcov_close __gcov_close #define gcov_write_tag_length __gcov_write_tag_length #define gcov_position __gcov_position #define gcov_seek __gcov_seek #define gcov_rewrite __gcov_rewrite #define gcov_is_error __gcov_is_error #define gcov_write_unsigned __gcov_write_unsigned #define gcov_write_counter __gcov_write_counter #define gcov_write_summary __gcov_write_summary #define gcov_read_unsigned __gcov_read_unsigned #define gcov_read_counter __gcov_read_counter #define gcov_read_summary __gcov_read_summary /* 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_time gcov_magic #ifdef HAVE_GAS_HIDDEN #define ATTRIBUTE_HIDDEN __attribute__ ((__visibility__ ("hidden"))) #else #define ATTRIBUTE_HIDDEN #endif #include "gcov-io.h" /* Structures embedded in coveraged program. The structures generated by write_profile must match these. */ /* Information about counters for a single function. */ struct gcov_ctr_info { gcov_unsigned_t num; /* number of counters. */ gcov_type *values; /* their values. */ }; /* Information about a single function. This uses the trailing array idiom. The number of counters is determined from the merge pointer array in gcov_info. The key is used to detect which of a set of comdat functions was selected -- it points to the gcov_info object of the object file containing the selected comdat function. */ struct gcov_fn_info { const struct gcov_info *key; /* comdat key */ gcov_unsigned_t ident; /* unique ident of function */ gcov_unsigned_t lineno_checksum; /* function lineo_checksum */ gcov_unsigned_t cfg_checksum; /* function cfg checksum */ struct gcov_ctr_info ctrs[0]; /* instrumented counters */ }; /* Type of function used to merge counters. */ typedef void (*gcov_merge_fn) (gcov_type *, gcov_unsigned_t); /* Information about a single object file. */ struct gcov_info { gcov_unsigned_t version; /* expected version number */ struct gcov_info *next; /* link to next, used by libgcov */ gcov_unsigned_t stamp; /* uniquifying time stamp */ const char *filename; /* output file name */ gcov_merge_fn merge[GCOV_COUNTERS]; /* merge functions (null for unused) */ unsigned n_functions; /* number of functions */ const struct gcov_fn_info *const *functions; /* pointer to pointers to function information */ }; /* Register a new object file module. */ extern void __gcov_init (struct gcov_info *) ATTRIBUTE_HIDDEN; /* Called before fork, to avoid double counting. */ extern void __gcov_flush (void) ATTRIBUTE_HIDDEN; /* Function to reset all counters to 0. */ extern void __gcov_reset (void); /* Function to enable early write of profile information so far. */ extern void __gcov_dump (void); /* The merge function that just sums the counters. */ extern void __gcov_merge_add (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; /* The merge function to select the minimum valid counter value. */ extern void __gcov_merge_time_profile (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; /* The merge function to choose the most common value. */ extern void __gcov_merge_single (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; /* The merge function to choose the most common difference between consecutive values. */ extern void __gcov_merge_delta (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; /* The merge function that just ors the counters together. */ extern void __gcov_merge_ior (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; /* The profiler functions. */ extern void __gcov_interval_profiler (gcov_type *, gcov_type, int, unsigned); extern void __gcov_pow2_profiler (gcov_type *, gcov_type); extern void __gcov_one_value_profiler (gcov_type *, gcov_type); extern void __gcov_indirect_call_profiler (gcov_type*, gcov_type, void*, void*); extern void __gcov_indirect_call_profiler_v2 (gcov_type, void *); extern void __gcov_time_profiler (gcov_type *); extern void __gcov_average_profiler (gcov_type *, gcov_type); extern void __gcov_ior_profiler (gcov_type *, gcov_type); #ifndef inhibit_libc /* The wrappers around some library functions.. */ extern pid_t __gcov_fork (void) ATTRIBUTE_HIDDEN; extern int __gcov_execl (const char *, char *, ...) ATTRIBUTE_HIDDEN; extern int __gcov_execlp (const char *, char *, ...) ATTRIBUTE_HIDDEN; extern int __gcov_execle (const char *, char *, ...) ATTRIBUTE_HIDDEN; extern int __gcov_execv (const char *, char *const []) ATTRIBUTE_HIDDEN; extern int __gcov_execvp (const char *, char *const []) ATTRIBUTE_HIDDEN; extern int __gcov_execve (const char *, char *const [], char *const []) ATTRIBUTE_HIDDEN; /* Functions that only available in libgcov. */ GCOV_LINKAGE int gcov_open (const char */*name*/) ATTRIBUTE_HIDDEN; GCOV_LINKAGE void gcov_write_counter (gcov_type) ATTRIBUTE_HIDDEN; GCOV_LINKAGE void gcov_write_tag_length (gcov_unsigned_t, gcov_unsigned_t) ATTRIBUTE_HIDDEN; GCOV_LINKAGE void gcov_write_summary (gcov_unsigned_t /*tag*/, const struct gcov_summary *) ATTRIBUTE_HIDDEN; GCOV_LINKAGE void gcov_seek (gcov_position_t /*position*/) ATTRIBUTE_HIDDEN; GCOV_LINKAGE inline void gcov_rewrite (void); #endif /* !inhibit_libc */ #endif /* GCC_LIBGCOV_H */