/* File format for coverage information
Copyright (C) 1996, 1997, 1998, 2000, 2002,
- 2003 Free Software Foundation, Inc.
+ 2003, 2004, 2005 Free Software Foundation, Inc.
Contributed by Bob Manson <manson@cygnus.com>.
Completely remangled by Nathan Sidwell <nathan@codesourcery.com>.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
/* As a special exception, if you link this library with other files,
some of which are compiled with GCC, to produce an executable,
the executable file might be covered by the GNU General Public License. */
/* Coverage information is held in two files. A notes file, which is
- generated by the compiler, and a data file, which is generated
- by the program under test. Both files use a similar structure. We
- do not attempt to make these files backwards compatible with
- previous versions, as you only need coverage information when
- developing a program. We do hold version information, so that
- mismatches can be detected, and we use a format that allows tools
- to skip information they do not understand or are not interested
- in.
+ generated by the compiler, and a data file, which is generated by
+ the program under test. Both files use a similar structure. We do
+ not attempt to make these files backwards compatible with previous
+ versions, as you only need coverage information when developing a
+ program. We do hold version information, so that mismatches can be
+ detected, and we use a format that allows tools to skip information
+ they do not understand or are not interested in.
Numbers are recorded in the 32 bit unsigned binary form of the
endianness of the machine generating the file. 64 bit numbers are
stored as two 32 bit numbers, the low part first. Strings are
padded with 1 to 4 NUL bytes, to bring the length up to a multiple
of 4. The number of 4 bytes is stored, followed by the padded
- string. Zero length and NULL strings are simply stored as
- a length of zero (they have no trailing NUL or padding).
+ string. Zero length and NULL strings are simply stored as a length
+ of zero (they have no trailing NUL or padding).
int32: byte3 byte2 byte1 byte0 | byte0 byte1 byte2 byte3
int64: int32:low int32:high
#if IN_LIBGCOV
/* About the target */
+#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
#else
typedef signed gcov_type __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)));
+#else
+typedef signed gcov_type __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)));
+#else
+typedef signed gcov_type __attribute__ ((mode (QI)));
+#endif
+#endif
+#endif
+
-#if defined (TARGET_HAS_F_SETLKW)
+#if defined (TARGET_POSIX_IO)
#define GCOV_LOCKED 1
#else
#define GCOV_LOCKED 0
#include <sys/types.h>
#endif
#else /*!IN_GCOV */
-#if LONG_LONG_TYPE_SIZE > 32
-#define GCOV_TYPE_NODE intDI_type_node
-#else
-#define GCOV_TYPE_NODE intSI_type_node
-#endif
+#define GCOV_TYPE_SIZE (LONG_LONG_TYPE_SIZE > 32 ? 64 : 32)
#endif
#if defined (HOST_HAS_F_SETLKW)
#endif /* !IN_LIBGCOV */
-/* In gcov we want function linkage to be static. In libgcov we need
- these functions to be extern, so prefix them with __gcov. In the
- compiler we want it extern, so that they can be accessed from
- elsewhere. */
+/* In gcov we want function linkage to be static. In the compiler we want
+ it extern, so that they can be accessed from elsewhere. 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. */
#if IN_LIBGCOV
+
+#include "tconfig.h"
+
#define gcov_var __gcov_var
#define gcov_open __gcov_open
#define gcov_close __gcov_close
#define gcov_seek __gcov_seek
#define gcov_rewrite __gcov_rewrite
#define gcov_is_error __gcov_is_error
-#define gcov_is_eof __gcov_is_eof
#define gcov_write_unsigned __gcov_write_unsigned
#define gcov_write_counter __gcov_write_counter
#define gcov_write_summary __gcov_write_summary
#pragma GCC poison gcov_write_string gcov_write_tag gcov_write_length
#pragma GCC poison gcov_read_string gcov_sync gcov_time gcov_magic
+#ifdef HAVE_GAS_HIDDEN
+#define ATTRIBUTE_HIDDEN __attribute__ ((__visibility__ ("hidden")))
+#else
+#define ATTRIBUTE_HIDDEN
+#endif
+
+#else
+
+#define ATTRIBUTE_HIDDEN
+
#endif
#ifndef GCOV_LINKAGE
/* The record tags. Values [1..3f] are for tags which may be in either
file. Values [41..9f] for those in the note file and [a1..ff] for
- the data file. */
+ the data file. The tag value zero is used as an explicit end of
+ file marker -- it is not required to be present. */
#define GCOV_TAG_FUNCTION ((gcov_unsigned_t)0x01000000)
#define GCOV_TAG_FUNCTION_LENGTH (2)
#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_LAST_VALUE_COUNTER 4 /* The last of counters used for value
+
+#define GCOV_COUNTER_V_INDIR 5 /* The most common indirect address */
+#define GCOV_COUNTER_AVERAGE 6 /* Compute average value passed to the
+ counter. */
+#define GCOV_COUNTER_IOR 7 /* IOR of the all values passed to
+ counter. */
+#define GCOV_LAST_VALUE_COUNTER 7 /* The last of counters used for value
profiling. */
-#define GCOV_COUNTERS 5
+#define GCOV_COUNTERS 8
/* Number of counters used for value profiling. */
#define GCOV_N_VALUE_COUNTERS \
(GCOV_LAST_VALUE_COUNTER - GCOV_FIRST_VALUE_COUNTER + 1)
/* A list of human readable names of the counters */
-#define GCOV_COUNTER_NAMES {"arcs", "interval", "pow2", "single", "delta"}
+#define GCOV_COUNTER_NAMES {"arcs", "interval", "pow2", "single", \
+ "delta","indirect_call", "average", "ior"}
/* 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"}
+ "__gcov_merge_delta", \
+ "__gcov_merge_single", \
+ "__gcov_merge_add", \
+ "__gcov_merge_ior"}
/* Convert a counter index to a tag. */
#define GCOV_TAG_FOR_COUNTER(COUNT) \
};
/* Register a new object file module. */
-extern void __gcov_init (struct gcov_info *);
+extern void __gcov_init (struct gcov_info *) ATTRIBUTE_HIDDEN;
/* Called before fork, to avoid double counting. */
-extern void __gcov_flush (void);
+extern void __gcov_flush (void) ATTRIBUTE_HIDDEN;
/* The merge function that just sums the counters. */
-extern void __gcov_merge_add (gcov_type *, unsigned);
+extern void __gcov_merge_add (gcov_type *, unsigned) ATTRIBUTE_HIDDEN;
/* The merge function to choose the most common value. */
-extern void __gcov_merge_single (gcov_type *, unsigned);
+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);
+extern void __gcov_merge_delta (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_average_profiler (gcov_type *, gcov_type);
+extern void __gcov_ior_profiler (gcov_type *, gcov_type);
+extern void __gcov_merge_ior (gcov_type *, unsigned);
+
+#ifndef inhibit_libc
+/* The wrappers around some library functions.. */
+extern pid_t __gcov_fork (void);
+extern int __gcov_execl (const char *, const char *, ...) ATTRIBUTE_HIDDEN;
+extern int __gcov_execlp (const char *, const char *, ...) ATTRIBUTE_HIDDEN;
+extern int __gcov_execle (const char *, const 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;
+#endif
+
#endif /* IN_LIBGCOV */
#if IN_LIBGCOV >= 0
size_t alloc;
gcov_unsigned_t *buffer;
#endif
-} gcov_var;
+} gcov_var ATTRIBUTE_HIDDEN;
/* Functions for reading and writing gcov files. In libgcov you can
open the file for reading then writing. Elsewhere you can open the
functions for writing. Your file may become corrupted if you break
these invariants. */
#if IN_LIBGCOV
-GCOV_LINKAGE int gcov_open (const char */*name*/);
+GCOV_LINKAGE int gcov_open (const char */*name*/) ATTRIBUTE_HIDDEN;
#else
GCOV_LINKAGE int gcov_open (const char */*name*/, int /*direction*/);
GCOV_LINKAGE int gcov_magic (gcov_unsigned_t, gcov_unsigned_t);
#endif
-GCOV_LINKAGE int gcov_close (void);
+GCOV_LINKAGE int gcov_close (void) ATTRIBUTE_HIDDEN;
/* Available everywhere. */
static gcov_position_t gcov_position (void);
static int gcov_is_error (void);
-static int gcov_is_eof (void);
-GCOV_LINKAGE gcov_unsigned_t gcov_read_unsigned (void);
-GCOV_LINKAGE gcov_type gcov_read_counter (void);
-GCOV_LINKAGE void gcov_read_summary (struct gcov_summary *);
+GCOV_LINKAGE gcov_unsigned_t gcov_read_unsigned (void) ATTRIBUTE_HIDDEN;
+GCOV_LINKAGE gcov_type gcov_read_counter (void) ATTRIBUTE_HIDDEN;
+GCOV_LINKAGE void gcov_read_summary (struct gcov_summary *) ATTRIBUTE_HIDDEN;
#if IN_LIBGCOV
/* Available only in libgcov */
-GCOV_LINKAGE void gcov_write_counter (gcov_type);
-GCOV_LINKAGE void gcov_write_tag_length (gcov_unsigned_t, gcov_unsigned_t);
+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 *);
-static void gcov_truncate (void);
+ const struct gcov_summary *)
+ ATTRIBUTE_HIDDEN;
static void gcov_rewrite (void);
-GCOV_LINKAGE void gcov_seek (gcov_position_t /*position*/);
+GCOV_LINKAGE void gcov_seek (gcov_position_t /*position*/) ATTRIBUTE_HIDDEN;
#else
/* Available outside libgcov */
GCOV_LINKAGE const char *gcov_read_string (void);
#if !IN_GCOV
/* Available outside gcov */
-GCOV_LINKAGE void gcov_write_unsigned (gcov_unsigned_t);
+GCOV_LINKAGE void gcov_write_unsigned (gcov_unsigned_t) ATTRIBUTE_HIDDEN;
#endif
#if !IN_GCOV && !IN_LIBGCOV
GCOV_LINKAGE time_t gcov_time (void);
#endif
-/* Make sure the library is used correctly. */
-#if ENABLE_CHECKING
-#define GCOV_CHECK(expr) ((expr) ? (void)0 : (void)abort ())
-#else
-#define GCOV_CHECK(expr)
-#endif
-#define GCOV_CHECK_READING() GCOV_CHECK(gcov_var.mode > 0)
-#define GCOV_CHECK_WRITING() GCOV_CHECK(gcov_var.mode < 0)
-
/* Save the current position in the gcov file. */
static inline gcov_position_t
gcov_position (void)
{
- GCOV_CHECK_READING ();
+ gcc_assert (gcov_var.mode > 0);
return gcov_var.start + gcov_var.offset;
}
-/* Return nonzero if we read to end of file. */
-
-static inline int
-gcov_is_eof (void)
-{
- return !gcov_var.overread;
-}
-
/* Return nonzero if the error flag is set. */
static inline int
static inline void
gcov_rewrite (void)
{
- GCOV_CHECK_READING ();
+ gcc_assert (gcov_var.mode > 0);
gcov_var.mode = -1;
gcov_var.start = 0;
gcov_var.offset = 0;
fseek (gcov_var.file, 0L, SEEK_SET);
}
-
-static inline void
-gcov_truncate (void)
-{
- ftruncate (fileno (gcov_var.file), 0L);
-}
#endif
#endif /* IN_LIBGCOV >= 0 */
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