diff options
Diffstat (limited to 'gcc-4.9/libgcc/libgcov.h')
| -rw-r--r-- | gcc-4.9/libgcc/libgcov.h | 205 |
1 files changed, 180 insertions, 25 deletions
diff --git a/gcc-4.9/libgcc/libgcov.h b/gcc-4.9/libgcc/libgcov.h index 1e831de69..25534acd5 100644 --- a/gcc-4.9/libgcc/libgcov.h +++ b/gcc-4.9/libgcc/libgcov.h @@ -32,6 +32,13 @@ #ifndef xcalloc #define xcalloc calloc #endif +#ifndef xrealloc +#define xrealloc realloc +#endif + +#ifndef IN_GCOV_TOOL +/* About the target. */ +/* This path will be used by libgcov runtime. */ #include "tconfig.h" #include "tsystem.h" @@ -39,38 +46,61 @@ #include "tm.h" #include "libgcc_tm.h" +#undef FUNC_ID_WIDTH +#undef FUNC_ID_MASK + #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))); +#define FUNC_ID_WIDTH 32 +#define FUNC_ID_MASK ((1ll << FUNC_ID_WIDTH) - 1) #else typedef signed gcov_type __attribute__ ((mode (SI))); typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI))); +#define FUNC_ID_WIDTH 16 +#define FUNC_ID_MASK ((1 << FUNC_ID_WIDTH) - 1) #endif -#else +#else /* BITS_PER_UNIT != 8 */ #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))); +#define FUNC_ID_WIDTH 32 +#define FUNC_ID_MASK ((1ll << FUNC_ID_WIDTH) - 1) #else typedef signed gcov_type __attribute__ ((mode (HI))); typedef unsigned gcov_type_unsigned __attribute__ ((mode (HI))); +#define FUNC_ID_WIDTH 16 +#define FUNC_ID_MASK ((1 << FUNC_ID_WIDTH) - 1) #endif -#else +#else /* BITS_PER_UNIT != 16 */ 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))); +#define FUNC_ID_WIDTH 32 +#define FUNC_ID_MASK ((1ll << FUNC_ID_WIDTH) - 1) #else typedef signed gcov_type __attribute__ ((mode (QI))); typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI))); +#define FUNC_ID_WIDTH 16 +#define FUNC_ID_MASK ((1 << FUNC_ID_WIDTH) - 1) #endif -#endif +#endif /* BITS_PER_UNIT == 16 */ +#endif /* BITS_PER_UNIT == 8 */ + +#if LONG_LONG_TYPE_SIZE > 32 +#define GCOV_TYPE_ATOMIC_FETCH_ADD_FN __atomic_fetch_add_8 +#define GCOV_TYPE_ATOMIC_FETCH_ADD BUILT_IN_ATOMIC_FETCH_ADD_8 +#else +#define GCOV_TYPE_ATOMIC_FETCH_ADD_FN __atomic_fetch_add_4 +#define GCOV_TYPE_ATOMIC_FETCH_ADD BUILT_IN_ATOMIC_FETCH_ADD_4 #endif #if defined (TARGET_POSIX_IO) @@ -79,6 +109,58 @@ typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI))); #define GCOV_LOCKED 0 #endif +#else /* IN_GCOV_TOOL */ +/* About the host. */ +/* This path will be compiled for the host and linked into + gcov-tool binary. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" + +typedef unsigned gcov_unsigned_t; +typedef unsigned gcov_position_t; +/* gcov_type is typedef'd elsewhere for the compiler */ +#if defined (HOST_HAS_F_SETLKW) +#define GCOV_LOCKED 1 +#else +#define GCOV_LOCKED 0 +#endif + +/* xur??? */ +#define FUNC_ID_WIDTH 32 +#define FUNC_ID_MASK ((1ll << FUNC_ID_WIDTH) - 1) + +/* Some Macros specific to gcov-tool. */ + +#define L_gcov 1 +#define L_gcov_merge_add 1 +#define L_gcov_merge_single 1 +#define L_gcov_merge_delta 1 +#define L_gcov_merge_ior 1 +#define L_gcov_merge_time_profile 1 +#define L_gcov_merge_icall_topn 1 +#define L_gcov_merge_dc 1 + +/* Make certian internal functions/variables in libgcov available for + gcov-tool access. */ +#define GCOV_TOOL_LINKAGE + +extern gcov_type gcov_read_counter_mem (); +extern unsigned gcov_get_merge_weight (); + +#endif /* !IN_GCOV_TOOL */ + +#undef EXTRACT_MODULE_ID_FROM_GLOBAL_ID +#undef EXTRACT_FUNC_ID_FROM_GLOBAL_ID +#undef GEN_FUNC_GLOBAL_ID +#define EXTRACT_MODULE_ID_FROM_GLOBAL_ID(gid) \ + (gcov_unsigned_t)(((gid) >> FUNC_ID_WIDTH) & FUNC_ID_MASK) +#define EXTRACT_FUNC_ID_FROM_GLOBAL_ID(gid) \ + (gcov_unsigned_t)((gid) & FUNC_ID_MASK) +#define GEN_FUNC_GLOBAL_ID(m,f) ((((gcov_type) (m)) << FUNC_ID_WIDTH) | (f)) + #if defined(inhibit_libc) #define IN_LIBGCOV (-1) #else @@ -98,13 +180,17 @@ typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI))); #define gcov_position __gcov_position #define gcov_seek __gcov_seek #define gcov_rewrite __gcov_rewrite +#define gcov_truncate __gcov_truncate #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_write_module_info __gcov_write_module_info #define gcov_read_unsigned __gcov_read_unsigned #define gcov_read_counter __gcov_read_counter #define gcov_read_summary __gcov_read_summary +#define gcov_read_module_info __gcov_read_module_info +#define gcov_sort_n_vals __gcov_sort_n_vals /* Poison these, so they don't accidentally slip in. */ #pragma GCC poison gcov_write_string gcov_write_tag gcov_write_length @@ -120,12 +206,11 @@ typedef unsigned gcov_type_unsigned __attribute__ ((mode (QI))); /* 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. */ + gcov_unsigned_t num; /* number of counters. */ + gcov_type *values; /* their values. */ }; /* Information about a single function. This uses the trailing array @@ -136,11 +221,11 @@ struct gcov_ctr_info 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 */ + 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[1]; /* instrumented counters */ }; /* Type of function used to merge counters. */ @@ -149,38 +234,50 @@ 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_unsigned_t version; /* expected version number */ + struct gcov_module_info *mod_info; /* addtional module info. */ + struct gcov_info *next; /* link to next, used by libgcov */ + gcov_unsigned_t stamp; /* uniquifying time stamp */ + const char *filename; /* output file name */ + gcov_unsigned_t eof_pos; /* end position of profile data */ gcov_merge_fn merge[GCOV_COUNTERS]; /* merge functions (null for - unused) */ - - unsigned n_functions; /* number of functions */ + unused) */ + + unsigned n_functions; /* number of functions */ + +#ifndef IN_GCOV_TOOL const struct gcov_fn_info *const *functions; /* pointer to pointers - to function information */ + to function information */ +#else + const struct gcov_fn_info **functions; +#endif /* !IN_GCOV_TOOL */ +}; + +/* Information about a single imported module. */ +struct dyn_imp_mod +{ + const struct gcov_info *imp_mod; + double weight; }; /* Register a new object file module. */ extern void __gcov_init (struct gcov_info *) ATTRIBUTE_HIDDEN; +/* Set sampling rate to RATE. */ +extern void __gcov_set_sampling_rate (unsigned int rate); + /* 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; @@ -191,6 +288,14 @@ 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 merge function used for direct call counters. */ +extern void __gcov_merge_dc (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; + +/* The merge function used for indirect call counters. */ +extern void __gcov_merge_icall_topn (gcov_type *, unsigned) ATTRIBUTE_HIDDEN; + +extern void __gcov_merge_time_profile (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); @@ -198,9 +303,12 @@ 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_indirect_call_topn_profiler (void *, void *, gcov_unsigned_t) ATTRIBUTE_HIDDEN; +extern void __gcov_direct_call_profiler (void *, void *, gcov_unsigned_t) ATTRIBUTE_HIDDEN; extern void __gcov_average_profiler (gcov_type *, gcov_type); extern void __gcov_ior_profiler (gcov_type *, gcov_type); +extern void __gcov_sort_n_vals (gcov_type *value_array, int n); +extern void __gcov_time_profiler (gcov_type *); #ifndef inhibit_libc /* The wrappers around some library functions.. */ @@ -213,6 +321,7 @@ 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; @@ -222,8 +331,54 @@ 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 void gcov_truncate (void) ATTRIBUTE_HIDDEN; +GCOV_LINKAGE void gcov_write_module_infos (struct gcov_info *mod_info) + ATTRIBUTE_HIDDEN; +GCOV_LINKAGE const struct dyn_imp_mod ** +gcov_get_sorted_import_module_array (struct gcov_info *mod_info, unsigned *len) + ATTRIBUTE_HIDDEN; GCOV_LINKAGE inline void gcov_rewrite (void); +/* "Counts" stored in gcda files can be a real counter value, or + an target address. When differentiate these two types because + when manipulating counts, we should only change real counter values, + rather target addresses. */ + +static inline gcov_type +gcov_get_counter (void) +{ +#ifndef IN_GCOV_TOOL + /* This version is for reading count values in libgcov runtime: + we read from gcda files. */ + + return gcov_read_counter (); +#else + /* This version is for gcov-tool. We read the value from memory and + multiply it by the merge weight. */ + + return gcov_read_counter_mem () * gcov_get_merge_weight (); +#endif +} + +/* Similar function as gcov_get_counter(), but handles target address + counters. */ + +static inline gcov_type +gcov_get_counter_target (void) +{ +#ifndef IN_GCOV_TOOL + /* This version is for reading count target values in libgcov runtime: + we read from gcda files. */ + + return gcov_read_counter (); +#else + /* This version is for gcov-tool. We read the value from memory and we do NOT + multiply it by the merge weight. */ + + return gcov_read_counter_mem (); +#endif +} + #endif /* !inhibit_libc */ #endif /* GCC_LIBGCOV_H */ |