diff options
Diffstat (limited to 'contrib/gcc/gcov-io.h')
-rw-r--r-- | contrib/gcc/gcov-io.h | 112 |
1 files changed, 83 insertions, 29 deletions
diff --git a/contrib/gcc/gcov-io.h b/contrib/gcc/gcov-io.h index d2605fe..7352429 100644 --- a/contrib/gcc/gcov-io.h +++ b/contrib/gcc/gcov-io.h @@ -1,43 +1,46 @@ /* Machine-independent I/O routines for gcov. - Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc. Contributed by Bob Manson <manson@cygnus.com>. -This file is part of GNU CC. +This file is part of GCC. -GNU CC 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 2, or (at your option) -any later version. +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 2, or (at your option) any later +version. -GNU CC 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. +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. You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +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. */ -#ifndef GCOV_IO_H -#define GCOV_IO_H +#ifndef GCC_GCOV_IO_H +#define GCC_GCOV_IO_H #include <stdio.h> #include <sys/types.h> -static int __fetch_long PROTO ((long *, char *, size_t)); -static int __store_long PROTO ((long, char *, size_t)); -static int __read_long PROTO ((long *, FILE *, size_t)); -static int __write_long PROTO ((long, FILE *, size_t)); +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; -/* These routines only work for signed values. */ +/* 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 - to store. */ + to store. */ static int -__store_long (value, dest, bytes) - long value; +__store_gcov_type (value, dest, bytes) + gcov_type value; char *dest; size_t bytes; { @@ -46,7 +49,7 @@ __store_long (value, dest, bytes) if (value < 0) { - long oldvalue = value; + gcov_type oldvalue = value; value = -value; if (oldvalue != -value) return 1; @@ -68,7 +71,30 @@ __store_long (value, dest, bytes) /* 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 - will not fit in DEST. */ + will not fit in DEST. */ + +static int +__fetch_gcov_type (dest, source, bytes) + gcov_type *dest; + char *source; + size_t bytes; +{ + gcov_type value = 0; + int i; + + for (i = bytes - 1; (size_t) i > (sizeof (*dest) - 1); i--) + if (source[i] & ((size_t) i == (bytes - 1) ? 127 : 255 )) + return 1; + + for (; i >= 0; i--) + value = value * 256 + (source[i] & ((size_t)i == (bytes - 1) ? 127 : 255)); + + if ((source[bytes - 1] & 128) && (value > 0)) + value = - value; + + *dest = value; + return 0; +} static int __fetch_long (dest, source, bytes) @@ -100,7 +126,21 @@ __fetch_long (dest, source, bytes) Note that VALUE may not actually be large enough to hold BYTES*8 bits, but BYTES characters will be written anyway. - BYTES may be a maximum of 10. */ + BYTES may be a maximum of 10. */ + +static int +__write_gcov_type (value, file, bytes) + gcov_type value; + FILE *file; + size_t bytes; +{ + char c[10]; + + if (bytes > 10 || __store_gcov_type (value, c, bytes)) + return 1; + else + return fwrite(c, 1, bytes, file) != bytes; +} static int __write_long (value, file, bytes) @@ -110,7 +150,7 @@ __write_long (value, file, bytes) { char c[10]; - if (bytes > 10 || __store_long (value, c, bytes)) + if (bytes > 10 || __store_gcov_type ((gcov_type)value, c, bytes)) return 1; else return fwrite(c, 1, bytes, file) != bytes; @@ -123,7 +163,21 @@ __write_long (value, file, bytes) Note that DEST may not be large enough to hold all of the requested data, but the function will read BYTES characters anyway. - BYTES may be a maximum of 10. */ + BYTES may be a maximum of 10. */ + +static int +__read_gcov_type (dest, file, bytes) + gcov_type *dest; + FILE *file; + size_t bytes; +{ + char c[10]; + + if (bytes > 10 || fread(c, 1, bytes, file) != bytes) + return 1; + else + return __fetch_gcov_type (dest, c, bytes); +} static int __read_long (dest, file, bytes) @@ -139,4 +193,4 @@ __read_long (dest, file, bytes) return __fetch_long (dest, c, bytes); } -#endif +#endif /* ! GCC_GCOV_IO_H */ |