diff options
Diffstat (limited to 'contrib/gcc/gcov-io.h')
| -rw-r--r-- | contrib/gcc/gcov-io.h | 133 |
1 files changed, 121 insertions, 12 deletions
diff --git a/contrib/gcc/gcov-io.h b/contrib/gcc/gcov-io.h index 7352429..50d04a3 100644 --- a/contrib/gcc/gcov-io.h +++ b/contrib/gcc/gcov-io.h @@ -19,23 +19,42 @@ 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. */ +/* As a special exception, if you link this library with other files, + some of which are compiled with GCC, to produce an executable, + this library does not by itself cause the resulting executable + to be covered by the GNU General Public License. + This exception does not however invalidate any other reasons why + the executable file might be covered by the GNU General Public + License. */ + #ifndef GCC_GCOV_IO_H #define GCC_GCOV_IO_H #include <stdio.h> #include <sys/types.h> -static int __fetch_long PARAMS ((long *, char *, size_t)) ATTRIBUTE_UNUSED; -static int __read_long PARAMS ((long *, FILE *, size_t)) ATTRIBUTE_UNUSED; -static int __write_long PARAMS ((long, FILE *, size_t)) ATTRIBUTE_UNUSED; -static int __fetch_gcov_type PARAMS ((gcov_type *, char *, size_t)) ATTRIBUTE_UNUSED; -static int __store_gcov_type PARAMS ((gcov_type, char *, size_t)) ATTRIBUTE_UNUSED; -static int __read_gcov_type PARAMS ((gcov_type *, FILE *, size_t)) ATTRIBUTE_UNUSED; -static int __write_gcov_type PARAMS ((gcov_type, FILE *, size_t)) ATTRIBUTE_UNUSED; +static int __fetch_long PARAMS ((long *, char *, size_t)) + ATTRIBUTE_UNUSED; +static int __read_long PARAMS ((long *, FILE *, size_t)) + ATTRIBUTE_UNUSED; +static int __write_long PARAMS ((long, FILE *, size_t)) + ATTRIBUTE_UNUSED; +static int __fetch_gcov_type PARAMS ((gcov_type *, char *, size_t)) + ATTRIBUTE_UNUSED; +static int __store_gcov_type PARAMS ((gcov_type, char *, size_t)) + ATTRIBUTE_UNUSED; +static int __read_gcov_type PARAMS ((gcov_type *, FILE *, size_t)) + ATTRIBUTE_UNUSED; +static int __write_gcov_type PARAMS ((gcov_type, FILE *, size_t)) + ATTRIBUTE_UNUSED; +static int __write_gcov_string PARAMS ((const char *, size_t, FILE*, long)) + ATTRIBUTE_UNUSED; +static int __read_gcov_string PARAMS ((char *, size_t, FILE*, long)) + ATTRIBUTE_UNUSED; /* These routines only work for signed values. */ /* Store a portable representation of VALUE in DEST using BYTES*8-1 bits. - Return a non-zero value if VALUE requires more than BYTES*8-1 bits + Return a nonzero value if VALUE requires more than BYTES*8-1 bits to store. */ static int @@ -63,14 +82,14 @@ __store_gcov_type (value, dest, bytes) if (value && value != -1) return 1; - for(; i < bytes ; i++) + for(; i < bytes ; i++) dest[i] = 0; dest[bytes - 1] |= upper_bit; return 0; } /* Retrieve a quantity containing BYTES*8-1 bits from SOURCE and store - the result in DEST. Returns a non-zero value if the value in SOURCE + the result in DEST. Returns a nonzero value if the value in SOURCE will not fit in DEST. */ static int @@ -119,7 +138,7 @@ __fetch_long (dest, source, bytes) return 0; } -/* Write a BYTES*8-bit quantity to FILE, portably. Returns a non-zero +/* Write a BYTES*8-bit quantity to FILE, portably. Returns a nonzero value if the write fails, or if VALUE can't be stored in BYTES*8 bits. @@ -157,7 +176,7 @@ __write_long (value, file, bytes) } /* Read a quantity containing BYTES bytes from FILE, portably. Return - a non-zero value if the read fails or if the value will not fit + a nonzero value if the read fails or if the value will not fit in DEST. Note that DEST may not be large enough to hold all of the requested @@ -193,4 +212,94 @@ __read_long (dest, file, bytes) return __fetch_long (dest, c, bytes); } + +/* Writes string in gcov format. */ + +static int +__write_gcov_string (string, length, file, delim) + const char *string; + size_t length; + FILE *file; + long delim; +{ + size_t temp = length + 1; + + /* delimiter */ + if (__write_long (delim, file, 4) != 0) + return 1; + + if (__write_long (length, file, 4) != 0) + return 1; + + if (fwrite (string, temp, 1, file) != 1) + return 1; + + temp &= 3; + + if (temp) + { + char c[4]; + + c[0] = c[1] = c[2] = c[3] = 0; + + if (fwrite (c, sizeof (char), 4 - temp, file) != 4 - temp) + return 1; + } + + if (__write_long (delim, file, 4) != 0) + return 1; + + return 0; +} + +/* Reads string in gcov format. */ + + +static int +__read_gcov_string (string, max_length, file, delim) + char *string; + size_t max_length; + FILE *file; + long delim; +{ + long delim_from_file; + long length; + long read_length; + long tmp; + + if (__read_long (&delim_from_file, file, 4) != 0) + return 1; + + if (delim_from_file != delim) + return 1; + + if (__read_long (&length, file, 4) != 0) + return 1; + + if (length > (long) max_length) + read_length = max_length; + else + read_length = length; + + tmp = (((length + 1) - 1) / 4 + 1) * 4; + /* This is the size occupied by the string in the file */ + + if (fread (string, read_length, 1, file) != 1) + return 1; + + string[read_length] = 0; + + if (fseek (file, tmp - read_length, SEEK_CUR) < 0) + return 1; + + if (__read_long (&delim_from_file, file, 4) != 0) + return 1; + + if (delim_from_file != delim) + return 1; + + return 0; +} + + #endif /* ! GCC_GCOV_IO_H */ |
