/* File format for coverage information
|
/* File format for coverage information
|
Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2007
|
Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2007
|
Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Contributed by Bob Manson <manson@cygnus.com>.
|
Contributed by Bob Manson <manson@cygnus.com>.
|
Completely remangled by Nathan Sidwell <nathan@codesourcery.com>.
|
Completely remangled by Nathan Sidwell <nathan@codesourcery.com>.
|
|
|
This file is part of GCC.
|
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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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
|
the terms of the GNU General Public License as published by the Free
|
Software Foundation; either version 3, or (at your option) any later
|
Software Foundation; either version 3, or (at your option) any later
|
version.
|
version.
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|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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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
|
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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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
for more details.
|
for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
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|
|
/* Routines declared in gcov-io.h. This file should be #included by
|
/* Routines declared in gcov-io.h. This file should be #included by
|
another source file, after having #included gcov-io.h. */
|
another source file, after having #included gcov-io.h. */
|
|
|
#if !IN_GCOV
|
#if !IN_GCOV
|
static void gcov_write_block (unsigned);
|
static void gcov_write_block (unsigned);
|
static gcov_unsigned_t *gcov_write_words (unsigned);
|
static gcov_unsigned_t *gcov_write_words (unsigned);
|
#endif
|
#endif
|
static const gcov_unsigned_t *gcov_read_words (unsigned);
|
static const gcov_unsigned_t *gcov_read_words (unsigned);
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
static void gcov_allocate (unsigned);
|
static void gcov_allocate (unsigned);
|
#endif
|
#endif
|
|
|
static inline gcov_unsigned_t from_file (gcov_unsigned_t value)
|
static inline gcov_unsigned_t from_file (gcov_unsigned_t value)
|
{
|
{
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
if (gcov_var.endian)
|
if (gcov_var.endian)
|
{
|
{
|
value = (value >> 16) | (value << 16);
|
value = (value >> 16) | (value << 16);
|
value = ((value & 0xff00ff) << 8) | ((value >> 8) & 0xff00ff);
|
value = ((value & 0xff00ff) << 8) | ((value >> 8) & 0xff00ff);
|
}
|
}
|
#endif
|
#endif
|
return value;
|
return value;
|
}
|
}
|
|
|
/* Open a gcov file. NAME is the name of the file to open and MODE
|
/* Open a gcov file. NAME is the name of the file to open and MODE
|
indicates whether a new file should be created, or an existing file
|
indicates whether a new file should be created, or an existing file
|
opened for modification. If MODE is >= 0 an existing file will be
|
opened for modification. If MODE is >= 0 an existing file will be
|
opened, if possible, and if MODE is <= 0, a new file will be
|
opened, if possible, and if MODE is <= 0, a new file will be
|
created. Use MODE=0 to attempt to reopen an existing file and then
|
created. Use MODE=0 to attempt to reopen an existing file and then
|
fall back on creating a new one. Return zero on failure, >0 on
|
fall back on creating a new one. Return zero on failure, >0 on
|
opening an existing file and <0 on creating a new one. */
|
opening an existing file and <0 on creating a new one. */
|
|
|
GCOV_LINKAGE int
|
GCOV_LINKAGE int
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
gcov_open (const char *name)
|
gcov_open (const char *name)
|
#else
|
#else
|
gcov_open (const char *name, int mode)
|
gcov_open (const char *name, int mode)
|
#endif
|
#endif
|
{
|
{
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
const int mode = 0;
|
const int mode = 0;
|
#endif
|
#endif
|
#if GCOV_LOCKED
|
#if GCOV_LOCKED
|
struct flock s_flock;
|
struct flock s_flock;
|
int fd;
|
int fd;
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|
|
s_flock.l_type = F_WRLCK;
|
s_flock.l_type = F_WRLCK;
|
s_flock.l_whence = SEEK_SET;
|
s_flock.l_whence = SEEK_SET;
|
s_flock.l_start = 0;
|
s_flock.l_start = 0;
|
s_flock.l_len = 0; /* Until EOF. */
|
s_flock.l_len = 0; /* Until EOF. */
|
s_flock.l_pid = getpid ();
|
s_flock.l_pid = getpid ();
|
#endif
|
#endif
|
|
|
gcc_assert (!gcov_var.file);
|
gcc_assert (!gcov_var.file);
|
gcov_var.start = 0;
|
gcov_var.start = 0;
|
gcov_var.offset = gcov_var.length = 0;
|
gcov_var.offset = gcov_var.length = 0;
|
gcov_var.overread = -1u;
|
gcov_var.overread = -1u;
|
gcov_var.error = 0;
|
gcov_var.error = 0;
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
gcov_var.endian = 0;
|
gcov_var.endian = 0;
|
#endif
|
#endif
|
#if GCOV_LOCKED
|
#if GCOV_LOCKED
|
if (mode > 0)
|
if (mode > 0)
|
fd = open (name, O_RDWR);
|
fd = open (name, O_RDWR);
|
else
|
else
|
fd = open (name, O_RDWR | O_CREAT, 0666);
|
fd = open (name, O_RDWR | O_CREAT, 0666);
|
if (fd < 0)
|
if (fd < 0)
|
return 0;
|
return 0;
|
|
|
while (fcntl (fd, F_SETLKW, &s_flock) && errno == EINTR)
|
while (fcntl (fd, F_SETLKW, &s_flock) && errno == EINTR)
|
continue;
|
continue;
|
|
|
gcov_var.file = fdopen (fd, "r+b");
|
gcov_var.file = fdopen (fd, "r+b");
|
if (!gcov_var.file)
|
if (!gcov_var.file)
|
{
|
{
|
close (fd);
|
close (fd);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
if (mode > 0)
|
if (mode > 0)
|
gcov_var.mode = 1;
|
gcov_var.mode = 1;
|
else if (mode == 0)
|
else if (mode == 0)
|
{
|
{
|
struct stat st;
|
struct stat st;
|
|
|
if (fstat (fd, &st) < 0)
|
if (fstat (fd, &st) < 0)
|
{
|
{
|
fclose (gcov_var.file);
|
fclose (gcov_var.file);
|
gcov_var.file = 0;
|
gcov_var.file = 0;
|
return 0;
|
return 0;
|
}
|
}
|
if (st.st_size != 0)
|
if (st.st_size != 0)
|
gcov_var.mode = 1;
|
gcov_var.mode = 1;
|
else
|
else
|
gcov_var.mode = mode * 2 + 1;
|
gcov_var.mode = mode * 2 + 1;
|
}
|
}
|
else
|
else
|
gcov_var.mode = mode * 2 + 1;
|
gcov_var.mode = mode * 2 + 1;
|
#else
|
#else
|
if (mode >= 0)
|
if (mode >= 0)
|
gcov_var.file = fopen (name, "r+b");
|
gcov_var.file = fopen (name, "r+b");
|
if (gcov_var.file)
|
if (gcov_var.file)
|
gcov_var.mode = 1;
|
gcov_var.mode = 1;
|
else if (mode <= 0)
|
else if (mode <= 0)
|
{
|
{
|
gcov_var.file = fopen (name, "w+b");
|
gcov_var.file = fopen (name, "w+b");
|
if (gcov_var.file)
|
if (gcov_var.file)
|
gcov_var.mode = mode * 2 + 1;
|
gcov_var.mode = mode * 2 + 1;
|
}
|
}
|
if (!gcov_var.file)
|
if (!gcov_var.file)
|
return 0;
|
return 0;
|
#endif
|
#endif
|
|
|
setbuf (gcov_var.file, (char *)0);
|
setbuf (gcov_var.file, (char *)0);
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Close the current gcov file. Flushes data to disk. Returns nonzero
|
/* Close the current gcov file. Flushes data to disk. Returns nonzero
|
on failure or error flag set. */
|
on failure or error flag set. */
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|
|
GCOV_LINKAGE int
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GCOV_LINKAGE int
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gcov_close (void)
|
gcov_close (void)
|
{
|
{
|
if (gcov_var.file)
|
if (gcov_var.file)
|
{
|
{
|
#if !IN_GCOV
|
#if !IN_GCOV
|
if (gcov_var.offset && gcov_var.mode < 0)
|
if (gcov_var.offset && gcov_var.mode < 0)
|
gcov_write_block (gcov_var.offset);
|
gcov_write_block (gcov_var.offset);
|
#endif
|
#endif
|
fclose (gcov_var.file);
|
fclose (gcov_var.file);
|
gcov_var.file = 0;
|
gcov_var.file = 0;
|
gcov_var.length = 0;
|
gcov_var.length = 0;
|
}
|
}
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
free (gcov_var.buffer);
|
free (gcov_var.buffer);
|
gcov_var.alloc = 0;
|
gcov_var.alloc = 0;
|
gcov_var.buffer = 0;
|
gcov_var.buffer = 0;
|
#endif
|
#endif
|
gcov_var.mode = 0;
|
gcov_var.mode = 0;
|
return gcov_var.error;
|
return gcov_var.error;
|
}
|
}
|
|
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
/* Check if MAGIC is EXPECTED. Use it to determine endianness of the
|
/* Check if MAGIC is EXPECTED. Use it to determine endianness of the
|
file. Returns +1 for same endian, -1 for other endian and zero for
|
file. Returns +1 for same endian, -1 for other endian and zero for
|
not EXPECTED. */
|
not EXPECTED. */
|
|
|
GCOV_LINKAGE int
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GCOV_LINKAGE int
|
gcov_magic (gcov_unsigned_t magic, gcov_unsigned_t expected)
|
gcov_magic (gcov_unsigned_t magic, gcov_unsigned_t expected)
|
{
|
{
|
if (magic == expected)
|
if (magic == expected)
|
return 1;
|
return 1;
|
magic = (magic >> 16) | (magic << 16);
|
magic = (magic >> 16) | (magic << 16);
|
magic = ((magic & 0xff00ff) << 8) | ((magic >> 8) & 0xff00ff);
|
magic = ((magic & 0xff00ff) << 8) | ((magic >> 8) & 0xff00ff);
|
if (magic == expected)
|
if (magic == expected)
|
{
|
{
|
gcov_var.endian = 1;
|
gcov_var.endian = 1;
|
return -1;
|
return -1;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
static void
|
static void
|
gcov_allocate (unsigned length)
|
gcov_allocate (unsigned length)
|
{
|
{
|
size_t new_size = gcov_var.alloc;
|
size_t new_size = gcov_var.alloc;
|
|
|
if (!new_size)
|
if (!new_size)
|
new_size = GCOV_BLOCK_SIZE;
|
new_size = GCOV_BLOCK_SIZE;
|
new_size += length;
|
new_size += length;
|
new_size *= 2;
|
new_size *= 2;
|
|
|
gcov_var.alloc = new_size;
|
gcov_var.alloc = new_size;
|
gcov_var.buffer = xrealloc (gcov_var.buffer, new_size << 2);
|
gcov_var.buffer = xrealloc (gcov_var.buffer, new_size << 2);
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !IN_GCOV
|
#if !IN_GCOV
|
/* Write out the current block, if needs be. */
|
/* Write out the current block, if needs be. */
|
|
|
static void
|
static void
|
gcov_write_block (unsigned size)
|
gcov_write_block (unsigned size)
|
{
|
{
|
if (fwrite (gcov_var.buffer, size << 2, 1, gcov_var.file) != 1)
|
if (fwrite (gcov_var.buffer, size << 2, 1, gcov_var.file) != 1)
|
gcov_var.error = 1;
|
gcov_var.error = 1;
|
gcov_var.start += size;
|
gcov_var.start += size;
|
gcov_var.offset -= size;
|
gcov_var.offset -= size;
|
}
|
}
|
|
|
/* Allocate space to write BYTES bytes to the gcov file. Return a
|
/* Allocate space to write BYTES bytes to the gcov file. Return a
|
pointer to those bytes, or NULL on failure. */
|
pointer to those bytes, or NULL on failure. */
|
|
|
static gcov_unsigned_t *
|
static gcov_unsigned_t *
|
gcov_write_words (unsigned words)
|
gcov_write_words (unsigned words)
|
{
|
{
|
gcov_unsigned_t *result;
|
gcov_unsigned_t *result;
|
|
|
gcc_assert (gcov_var.mode < 0);
|
gcc_assert (gcov_var.mode < 0);
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
if (gcov_var.offset >= GCOV_BLOCK_SIZE)
|
if (gcov_var.offset >= GCOV_BLOCK_SIZE)
|
{
|
{
|
gcov_write_block (GCOV_BLOCK_SIZE);
|
gcov_write_block (GCOV_BLOCK_SIZE);
|
if (gcov_var.offset)
|
if (gcov_var.offset)
|
{
|
{
|
gcc_assert (gcov_var.offset == 1);
|
gcc_assert (gcov_var.offset == 1);
|
memcpy (gcov_var.buffer, gcov_var.buffer + GCOV_BLOCK_SIZE, 4);
|
memcpy (gcov_var.buffer, gcov_var.buffer + GCOV_BLOCK_SIZE, 4);
|
}
|
}
|
}
|
}
|
#else
|
#else
|
if (gcov_var.offset + words > gcov_var.alloc)
|
if (gcov_var.offset + words > gcov_var.alloc)
|
gcov_allocate (gcov_var.offset + words);
|
gcov_allocate (gcov_var.offset + words);
|
#endif
|
#endif
|
result = &gcov_var.buffer[gcov_var.offset];
|
result = &gcov_var.buffer[gcov_var.offset];
|
gcov_var.offset += words;
|
gcov_var.offset += words;
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Write unsigned VALUE to coverage file. Sets error flag
|
/* Write unsigned VALUE to coverage file. Sets error flag
|
appropriately. */
|
appropriately. */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_write_unsigned (gcov_unsigned_t value)
|
gcov_write_unsigned (gcov_unsigned_t value)
|
{
|
{
|
gcov_unsigned_t *buffer = gcov_write_words (1);
|
gcov_unsigned_t *buffer = gcov_write_words (1);
|
|
|
buffer[0] = value;
|
buffer[0] = value;
|
}
|
}
|
|
|
/* Write counter VALUE to coverage file. Sets error flag
|
/* Write counter VALUE to coverage file. Sets error flag
|
appropriately. */
|
appropriately. */
|
|
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_write_counter (gcov_type value)
|
gcov_write_counter (gcov_type value)
|
{
|
{
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
|
|
buffer[0] = (gcov_unsigned_t) value;
|
buffer[0] = (gcov_unsigned_t) value;
|
if (sizeof (value) > sizeof (gcov_unsigned_t))
|
if (sizeof (value) > sizeof (gcov_unsigned_t))
|
buffer[1] = (gcov_unsigned_t) (value >> 32);
|
buffer[1] = (gcov_unsigned_t) (value >> 32);
|
else
|
else
|
buffer[1] = 0;
|
buffer[1] = 0;
|
}
|
}
|
#endif /* IN_LIBGCOV */
|
#endif /* IN_LIBGCOV */
|
|
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
/* Write STRING to coverage file. Sets error flag on file
|
/* Write STRING to coverage file. Sets error flag on file
|
error, overflow flag on overflow */
|
error, overflow flag on overflow */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_write_string (const char *string)
|
gcov_write_string (const char *string)
|
{
|
{
|
unsigned length = 0;
|
unsigned length = 0;
|
unsigned alloc = 0;
|
unsigned alloc = 0;
|
gcov_unsigned_t *buffer;
|
gcov_unsigned_t *buffer;
|
|
|
if (string)
|
if (string)
|
{
|
{
|
length = strlen (string);
|
length = strlen (string);
|
alloc = (length + 4) >> 2;
|
alloc = (length + 4) >> 2;
|
}
|
}
|
|
|
buffer = gcov_write_words (1 + alloc);
|
buffer = gcov_write_words (1 + alloc);
|
|
|
buffer[0] = alloc;
|
buffer[0] = alloc;
|
buffer[alloc] = 0;
|
buffer[alloc] = 0;
|
memcpy (&buffer[1], string, length);
|
memcpy (&buffer[1], string, length);
|
}
|
}
|
#endif
|
#endif
|
|
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
/* Write a tag TAG and reserve space for the record length. Return a
|
/* Write a tag TAG and reserve space for the record length. Return a
|
value to be used for gcov_write_length. */
|
value to be used for gcov_write_length. */
|
|
|
GCOV_LINKAGE gcov_position_t
|
GCOV_LINKAGE gcov_position_t
|
gcov_write_tag (gcov_unsigned_t tag)
|
gcov_write_tag (gcov_unsigned_t tag)
|
{
|
{
|
gcov_position_t result = gcov_var.start + gcov_var.offset;
|
gcov_position_t result = gcov_var.start + gcov_var.offset;
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
|
|
buffer[0] = tag;
|
buffer[0] = tag;
|
buffer[1] = 0;
|
buffer[1] = 0;
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Write a record length using POSITION, which was returned by
|
/* Write a record length using POSITION, which was returned by
|
gcov_write_tag. The current file position is the end of the
|
gcov_write_tag. The current file position is the end of the
|
record, and is restored before returning. Returns nonzero on
|
record, and is restored before returning. Returns nonzero on
|
overflow. */
|
overflow. */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_write_length (gcov_position_t position)
|
gcov_write_length (gcov_position_t position)
|
{
|
{
|
unsigned offset;
|
unsigned offset;
|
gcov_unsigned_t length;
|
gcov_unsigned_t length;
|
gcov_unsigned_t *buffer;
|
gcov_unsigned_t *buffer;
|
|
|
gcc_assert (gcov_var.mode < 0);
|
gcc_assert (gcov_var.mode < 0);
|
gcc_assert (position + 2 <= gcov_var.start + gcov_var.offset);
|
gcc_assert (position + 2 <= gcov_var.start + gcov_var.offset);
|
gcc_assert (position >= gcov_var.start);
|
gcc_assert (position >= gcov_var.start);
|
offset = position - gcov_var.start;
|
offset = position - gcov_var.start;
|
length = gcov_var.offset - offset - 2;
|
length = gcov_var.offset - offset - 2;
|
buffer = (gcov_unsigned_t *) &gcov_var.buffer[offset];
|
buffer = (gcov_unsigned_t *) &gcov_var.buffer[offset];
|
buffer[1] = length;
|
buffer[1] = length;
|
if (gcov_var.offset >= GCOV_BLOCK_SIZE)
|
if (gcov_var.offset >= GCOV_BLOCK_SIZE)
|
gcov_write_block (gcov_var.offset);
|
gcov_write_block (gcov_var.offset);
|
}
|
}
|
|
|
#else /* IN_LIBGCOV */
|
#else /* IN_LIBGCOV */
|
|
|
/* Write a tag TAG and length LENGTH. */
|
/* Write a tag TAG and length LENGTH. */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_write_tag_length (gcov_unsigned_t tag, gcov_unsigned_t length)
|
gcov_write_tag_length (gcov_unsigned_t tag, gcov_unsigned_t length)
|
{
|
{
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
|
|
buffer[0] = tag;
|
buffer[0] = tag;
|
buffer[1] = length;
|
buffer[1] = length;
|
}
|
}
|
|
|
/* Write a summary structure to the gcov file. Return nonzero on
|
/* Write a summary structure to the gcov file. Return nonzero on
|
overflow. */
|
overflow. */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_write_summary (gcov_unsigned_t tag, const struct gcov_summary *summary)
|
gcov_write_summary (gcov_unsigned_t tag, const struct gcov_summary *summary)
|
{
|
{
|
unsigned ix;
|
unsigned ix;
|
const struct gcov_ctr_summary *csum;
|
const struct gcov_ctr_summary *csum;
|
|
|
gcov_write_tag_length (tag, GCOV_TAG_SUMMARY_LENGTH);
|
gcov_write_tag_length (tag, GCOV_TAG_SUMMARY_LENGTH);
|
gcov_write_unsigned (summary->checksum);
|
gcov_write_unsigned (summary->checksum);
|
for (csum = summary->ctrs, ix = GCOV_COUNTERS_SUMMABLE; ix--; csum++)
|
for (csum = summary->ctrs, ix = GCOV_COUNTERS_SUMMABLE; ix--; csum++)
|
{
|
{
|
gcov_write_unsigned (csum->num);
|
gcov_write_unsigned (csum->num);
|
gcov_write_unsigned (csum->runs);
|
gcov_write_unsigned (csum->runs);
|
gcov_write_counter (csum->sum_all);
|
gcov_write_counter (csum->sum_all);
|
gcov_write_counter (csum->run_max);
|
gcov_write_counter (csum->run_max);
|
gcov_write_counter (csum->sum_max);
|
gcov_write_counter (csum->sum_max);
|
}
|
}
|
}
|
}
|
#endif /* IN_LIBGCOV */
|
#endif /* IN_LIBGCOV */
|
|
|
#endif /*!IN_GCOV */
|
#endif /*!IN_GCOV */
|
|
|
/* Return a pointer to read BYTES bytes from the gcov file. Returns
|
/* Return a pointer to read BYTES bytes from the gcov file. Returns
|
NULL on failure (read past EOF). */
|
NULL on failure (read past EOF). */
|
|
|
static const gcov_unsigned_t *
|
static const gcov_unsigned_t *
|
gcov_read_words (unsigned words)
|
gcov_read_words (unsigned words)
|
{
|
{
|
const gcov_unsigned_t *result;
|
const gcov_unsigned_t *result;
|
unsigned excess = gcov_var.length - gcov_var.offset;
|
unsigned excess = gcov_var.length - gcov_var.offset;
|
|
|
gcc_assert (gcov_var.mode > 0);
|
gcc_assert (gcov_var.mode > 0);
|
if (excess < words)
|
if (excess < words)
|
{
|
{
|
gcov_var.start += gcov_var.offset;
|
gcov_var.start += gcov_var.offset;
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
if (excess)
|
if (excess)
|
{
|
{
|
gcc_assert (excess == 1);
|
gcc_assert (excess == 1);
|
memcpy (gcov_var.buffer, gcov_var.buffer + gcov_var.offset, 4);
|
memcpy (gcov_var.buffer, gcov_var.buffer + gcov_var.offset, 4);
|
}
|
}
|
#else
|
#else
|
memmove (gcov_var.buffer, gcov_var.buffer + gcov_var.offset, excess * 4);
|
memmove (gcov_var.buffer, gcov_var.buffer + gcov_var.offset, excess * 4);
|
#endif
|
#endif
|
gcov_var.offset = 0;
|
gcov_var.offset = 0;
|
gcov_var.length = excess;
|
gcov_var.length = excess;
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
gcc_assert (!gcov_var.length || gcov_var.length == 1);
|
gcc_assert (!gcov_var.length || gcov_var.length == 1);
|
excess = GCOV_BLOCK_SIZE;
|
excess = GCOV_BLOCK_SIZE;
|
#else
|
#else
|
if (gcov_var.length + words > gcov_var.alloc)
|
if (gcov_var.length + words > gcov_var.alloc)
|
gcov_allocate (gcov_var.length + words);
|
gcov_allocate (gcov_var.length + words);
|
excess = gcov_var.alloc - gcov_var.length;
|
excess = gcov_var.alloc - gcov_var.length;
|
#endif
|
#endif
|
excess = fread (gcov_var.buffer + gcov_var.length,
|
excess = fread (gcov_var.buffer + gcov_var.length,
|
1, excess << 2, gcov_var.file) >> 2;
|
1, excess << 2, gcov_var.file) >> 2;
|
gcov_var.length += excess;
|
gcov_var.length += excess;
|
if (gcov_var.length < words)
|
if (gcov_var.length < words)
|
{
|
{
|
gcov_var.overread += words - gcov_var.length;
|
gcov_var.overread += words - gcov_var.length;
|
gcov_var.length = 0;
|
gcov_var.length = 0;
|
return 0;
|
return 0;
|
}
|
}
|
}
|
}
|
result = &gcov_var.buffer[gcov_var.offset];
|
result = &gcov_var.buffer[gcov_var.offset];
|
gcov_var.offset += words;
|
gcov_var.offset += words;
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Read unsigned value from a coverage file. Sets error flag on file
|
/* Read unsigned value from a coverage file. Sets error flag on file
|
error, overflow flag on overflow */
|
error, overflow flag on overflow */
|
|
|
GCOV_LINKAGE gcov_unsigned_t
|
GCOV_LINKAGE gcov_unsigned_t
|
gcov_read_unsigned (void)
|
gcov_read_unsigned (void)
|
{
|
{
|
gcov_unsigned_t value;
|
gcov_unsigned_t value;
|
const gcov_unsigned_t *buffer = gcov_read_words (1);
|
const gcov_unsigned_t *buffer = gcov_read_words (1);
|
|
|
if (!buffer)
|
if (!buffer)
|
return 0;
|
return 0;
|
value = from_file (buffer[0]);
|
value = from_file (buffer[0]);
|
return value;
|
return value;
|
}
|
}
|
|
|
/* Read counter value from a coverage file. Sets error flag on file
|
/* Read counter value from a coverage file. Sets error flag on file
|
error, overflow flag on overflow */
|
error, overflow flag on overflow */
|
|
|
GCOV_LINKAGE gcov_type
|
GCOV_LINKAGE gcov_type
|
gcov_read_counter (void)
|
gcov_read_counter (void)
|
{
|
{
|
gcov_type value;
|
gcov_type value;
|
const gcov_unsigned_t *buffer = gcov_read_words (2);
|
const gcov_unsigned_t *buffer = gcov_read_words (2);
|
|
|
if (!buffer)
|
if (!buffer)
|
return 0;
|
return 0;
|
value = from_file (buffer[0]);
|
value = from_file (buffer[0]);
|
if (sizeof (value) > sizeof (gcov_unsigned_t))
|
if (sizeof (value) > sizeof (gcov_unsigned_t))
|
value |= ((gcov_type) from_file (buffer[1])) << 32;
|
value |= ((gcov_type) from_file (buffer[1])) << 32;
|
else if (buffer[1])
|
else if (buffer[1])
|
gcov_var.error = -1;
|
gcov_var.error = -1;
|
|
|
return value;
|
return value;
|
}
|
}
|
|
|
/* Read string from coverage file. Returns a pointer to a static
|
/* Read string from coverage file. Returns a pointer to a static
|
buffer, or NULL on empty string. You must copy the string before
|
buffer, or NULL on empty string. You must copy the string before
|
calling another gcov function. */
|
calling another gcov function. */
|
|
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
GCOV_LINKAGE const char *
|
GCOV_LINKAGE const char *
|
gcov_read_string (void)
|
gcov_read_string (void)
|
{
|
{
|
unsigned length = gcov_read_unsigned ();
|
unsigned length = gcov_read_unsigned ();
|
|
|
if (!length)
|
if (!length)
|
return 0;
|
return 0;
|
|
|
return (const char *) gcov_read_words (length);
|
return (const char *) gcov_read_words (length);
|
}
|
}
|
#endif
|
#endif
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_read_summary (struct gcov_summary *summary)
|
gcov_read_summary (struct gcov_summary *summary)
|
{
|
{
|
unsigned ix;
|
unsigned ix;
|
struct gcov_ctr_summary *csum;
|
struct gcov_ctr_summary *csum;
|
|
|
summary->checksum = gcov_read_unsigned ();
|
summary->checksum = gcov_read_unsigned ();
|
for (csum = summary->ctrs, ix = GCOV_COUNTERS_SUMMABLE; ix--; csum++)
|
for (csum = summary->ctrs, ix = GCOV_COUNTERS_SUMMABLE; ix--; csum++)
|
{
|
{
|
csum->num = gcov_read_unsigned ();
|
csum->num = gcov_read_unsigned ();
|
csum->runs = gcov_read_unsigned ();
|
csum->runs = gcov_read_unsigned ();
|
csum->sum_all = gcov_read_counter ();
|
csum->sum_all = gcov_read_counter ();
|
csum->run_max = gcov_read_counter ();
|
csum->run_max = gcov_read_counter ();
|
csum->sum_max = gcov_read_counter ();
|
csum->sum_max = gcov_read_counter ();
|
}
|
}
|
}
|
}
|
|
|
#if !IN_LIBGCOV
|
#if !IN_LIBGCOV
|
/* Reset to a known position. BASE should have been obtained from
|
/* Reset to a known position. BASE should have been obtained from
|
gcov_position, LENGTH should be a record length. */
|
gcov_position, LENGTH should be a record length. */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_sync (gcov_position_t base, gcov_unsigned_t length)
|
gcov_sync (gcov_position_t base, gcov_unsigned_t length)
|
{
|
{
|
gcc_assert (gcov_var.mode > 0);
|
gcc_assert (gcov_var.mode > 0);
|
base += length;
|
base += length;
|
if (base - gcov_var.start <= gcov_var.length)
|
if (base - gcov_var.start <= gcov_var.length)
|
gcov_var.offset = base - gcov_var.start;
|
gcov_var.offset = base - gcov_var.start;
|
else
|
else
|
{
|
{
|
gcov_var.offset = gcov_var.length = 0;
|
gcov_var.offset = gcov_var.length = 0;
|
fseek (gcov_var.file, base << 2, SEEK_SET);
|
fseek (gcov_var.file, base << 2, SEEK_SET);
|
gcov_var.start = ftell (gcov_var.file) >> 2;
|
gcov_var.start = ftell (gcov_var.file) >> 2;
|
}
|
}
|
}
|
}
|
#endif
|
#endif
|
|
|
#if IN_LIBGCOV
|
#if IN_LIBGCOV
|
/* Move to the a set position in a gcov file. */
|
/* Move to the a set position in a gcov file. */
|
|
|
GCOV_LINKAGE void
|
GCOV_LINKAGE void
|
gcov_seek (gcov_position_t base)
|
gcov_seek (gcov_position_t base)
|
{
|
{
|
gcc_assert (gcov_var.mode < 0);
|
gcc_assert (gcov_var.mode < 0);
|
if (gcov_var.offset)
|
if (gcov_var.offset)
|
gcov_write_block (gcov_var.offset);
|
gcov_write_block (gcov_var.offset);
|
fseek (gcov_var.file, base << 2, SEEK_SET);
|
fseek (gcov_var.file, base << 2, SEEK_SET);
|
gcov_var.start = ftell (gcov_var.file) >> 2;
|
gcov_var.start = ftell (gcov_var.file) >> 2;
|
}
|
}
|
#endif
|
#endif
|
|
|
#if IN_GCOV > 0
|
#if IN_GCOV > 0
|
/* Return the modification time of the current gcov file. */
|
/* Return the modification time of the current gcov file. */
|
|
|
GCOV_LINKAGE time_t
|
GCOV_LINKAGE time_t
|
gcov_time (void)
|
gcov_time (void)
|
{
|
{
|
struct stat status;
|
struct stat status;
|
|
|
if (fstat (fileno (gcov_var.file), &status))
|
if (fstat (fileno (gcov_var.file), &status))
|
return 0;
|
return 0;
|
else
|
else
|
return status.st_mtime;
|
return status.st_mtime;
|
}
|
}
|
#endif /* IN_GCOV */
|
#endif /* IN_GCOV */
|
|
|
