glibc/isomac.c
Ulrich Drepper c131718ccc Update.
1997-04-09 01:24  Ulrich Drepper  <drepper@cygnus.com>

	* rellns-sh: Rewrite to work also in presence of symlinks.

	* arpg/argp-fmtstream.c: Add casts to prevent warnings.
	* argp/argp-fmtstream.h: Likewise.
	* argp/argp-help.c: Likewise.

	* elf/dl-minimal.c: Add definition of calloc.
	* elf/version.c: Add casts to prevent warnings.
	(_dl_check_map_versions): Use calloc instead of malloc+memset.

	* locale/setlocale.c (_nl_current): Add element with index LC_ALL.
	Reported by Greg McGary <gkm@eng.ascend.com>.

	* manual/libc.texinfo: Update malloc documentation for new malloc.
	* manual/memory.texi: Likewise.
	Patch by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.

	* math/libm-test.c (check_long): New function.
	(check_longlong): New function.
	(rinttol_test): New function.
	(rinttoll_test): New function.

	* nis/nss_compat/compat-grp.c (in_blacklist): Improve a bit.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.

	* stdlib/erand48_r.c (erand48_r): Build double value using
	ieee754_double union and use random bits in different order to
	increase effect of seed.
	Reported by David Mosberger-Tang <davidm@AZStarNet.com>.

	* sunrpc/svc_auth.c: Moved to ...
	* sysdeps/generic/svc_auth.c: ...here.

	* time/time.h: Pretty print.

1997-04-08 07:19  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* libio/genops.c (_IO_flush_all_linebuffered): don't flush on
	a read-only stream.

1997-04-09 01:19  Ulrich Drepper  <drepper@cygnus.com>

	* malloc/malloc.c (mALLOC_STATs) [MALLOC_DEBUG>1]: Put declaration
	in correct place.
	Patch by Marcus G. Daniels <marcus@cathcart.sysc.pdx.edu>.

1997-04-07 15:34  Ulrich Drepper  <drepper@cygnus.com>

	* stdio-common/Makefile (tests): Add tst-ferror.
	* stdio-common/tst-ferror.c: New file.  Some tests for error
	indicator of streams.
	* stdio-common/tst-ferror.input: New file.

	* isomac.c: Let tests not fail because the compiler defines itself
	symbols which violate the name space rules.  gcc defines symbols
	for the architecture which are not protected by an underscore
	character.

	* math/Makefile (libm-support): Add s_rinttol and s_rinttoll.
	(libm-calls): Add s_clog.
	* sysdeps/libm-ieee754/s_clog.c: New file.  Implementation of
	logarithm of complex value.
	* sysdeps/libm-ieee754/s_clogf.c: New file.
	* sysdeps/libm-ieee754/s_clogl.c: New file.
	* math/libm-test.c (clog_test): Compile this function.  Fix a few
	typos.
	(main): Call clog_test.

	* sysdeps/libm-ieee754/s_rinttol.c: New file.  Round long double
	value to long int.
	* sysdeps/libm-i387/s_rinttol.S: New file.
	* sysdeps/libm-ieee754/s_rinttoll.c: new file.  Round long double
	value to long long int.
	* sysdeps/libm-i387/s_rinttoll.S: New file.

	* sysdeps/libm-ieee754/s_rintl.c: Many corrections.  The previous
	version was full of errors.

	* math/math.h (rinttol): Argument is of type `long double' not
	`double'.
	(rinttoll): Likewise.
	(roundtol): Likewise.
	(roundtoll): Likewise.

1997-04-06 11:32  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* posix/getopt.c (_getopt_initialize): Preserve optind.
	(_getopt_internal): Set optind to 1 if optind == 0 before
	calling _getopt_initialize ().

1997-04-05 16:45  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/rpcsvc/nislib.h: Change const nis_name to new type
	const_nis_name.
	* nis/nis_intern.c: Likewise.
	* nis/nis_intern.h: Likewise.
	* nis/nis_server.c: Likewise.
	* nis/nis_subr.c: Likewise.
	* nis/nis_table.c: Likewise.
	* nis/nis_names.c: Likewise.  Fill out ns_request structure in
	nis_add().

	* nis/nss_compat/compat-pwd.c: Use reentrant netgroup functions.
	* nis/nss_compat/compat-spwd.c: Likewise.

1997-03-27 07:37  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* libio/fileops.c (_IO_file_overflow): Set error when try to write
	on a read-only stream.

	* sysdeps/gnu/utmpbits.h (ut_xtime): New symbol.
	(ut_time): Define it only if _NO_UT_TIME is not defined.

1997-04-06 00:42  Ulrich Drepper  <drepper@cygnus.com>

	* misc/tst-tsearch.c: Include <string.h>.  Define _GNU_SOURCE only
	if not already defined.

1997-04-05 16:14  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/netatalk/at.h: Include <sys/socket.h> to
	get definition of sa_family_t for <linux/atalk.h>.
	Reported by a sun <asun@zoology.washington.edu>.

	* malloc/malloc.c (cALLOc): Little optimization.
1997-04-08 23:42:08 +00:00

411 lines
13 KiB
C

/* Check system header files for ISO 9899:1990 (ISO C) compliance.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jens Schweikhardt <schweikh@noc.dfn.de>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
as published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
The GNU C Library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place -
Suite 330, Boston, MA 02111-1307, USA. */
/* This is a simple minded program that tries to find illegal macro
definitions in system header files. Illegal macro definitions are
those not from the implementation namespace (i.e. not starting with
an underscore) or not matching any identifier mandated by The
Standard. Some common macro names are considered okay, e.g. all those
beginning with E (which may be defined in <errno.h>) or ending in
_MAX. See the arrays prefix[] and suffix[] below for details.
In a compliant implementation no other macros can be defined, because
you could write strictly conforming programs that may fail to compile
due to syntax errors: suppose <stdio.h> defines PIPE_BUF, then the
conforming
#include <assert.h>
#include <stdio.h> <- or where the bogus macro is defined
#include <string.h>
#define STR(x) #x
#define XSTR(x) STR(x)
int main (void)
{
int PIPE_BUF = 0;
assert (strcmp ("PIPE_BUF", XSTR (PIPE_BUF)) == 0);
return 0;
}
is expected to compile and meet the assertion. If it does not, your
compiler compiles some other language than Standard C.
REQUIREMENTS:
This program calls gcc to get the list of defined macros. If you
don't have gcc you're probably out of luck unless your compiler or
preprocessor has something similar to gcc's -dM option. Tune
PRINT_MACROS in this case. This program assumes headers are found
under /usr/include and that there is a writable /tmp directory.
Tune SYSTEM_INCLUDE and TMPFILE if your system differs.
#define BROKEN_SYSTEM if system(NULL) bombs -- one more violation
of ISO C, by the way.
OUTPUT:
Each header file name is printed, followed by illegal macro names
and their definition. For the above example, you would see
...
/usr/include/stdio.h
#define PIPE_BUF 5120
...
If your implementation does not yet incorporate Amendment 1 you
will see messages about iso646.h, wctype.h and wchar.h not being
found. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define TMPFILE "/tmp/macros"
#define HEADER_MAX 256
/* ISO C header names including Amendment 1 (without ".h" suffix). */
static char *header[] =
{
"assert", "ctype", "errno", "float", "iso646", "limits", "locale",
"math", "setjmp", "signal", "stdarg", "stddef", "stdio", "stdlib",
"string", "time", "wchar", "wctype"
};
/* Macros with these prefixes are considered okay. */
static char *prefix[] =
{
"_", "E", "is", "str", "mem", "SIG", "FLT_", "DBL_", "LDBL_",
"LC_", "wmem", "wcs"
};
/* Macros with these suffixes are considered okay. Will not work for
parametrized macros with arguments. */
static char *suffix[] =
{
"_MAX", "_MIN"
};
/* These macros are considered okay. In fact, these are just more prefixes. */
static char *macros[] =
{
"BUFSIZ", "CHAR_BIT", "CHAR_MAX", "CHAR_MIN", "CLOCKS_PER_SEC",
"DBL_DIG", "DBL_EPSILON", "DBL_MANT_DIG", "DBL_MAX",
"DBL_MAX_10_EXP", "DBL_MAX_EXP", "DBL_MIN", "DBL_MIN_10_EXP",
"DBL_MIN_EXP", "EDOM", "EILSEQ", "EOF", "ERANGE", "EXIT_FAILURE",
"EXIT_SUCCESS", "FILENAME_MAX", "FLT_DIG", "FLT_EPSILON",
"FLT_MANT_DIG", "FLT_MAX", "FLT_MAX_10_EXP", "FLT_MAX_EXP",
"FLT_MIN", "FLT_MIN_10_EXP", "FLT_MIN_EXP", "FLT_RADIX",
"FLT_ROUNDS", "FOPEN_MAX", "HUGE_VAL", "INT_MAX", "INT_MIN",
"LC_ALL", "LC_COLLATE", "LC_CTYPE", "LC_MONETARY", "LC_NUMERIC",
"LC_TIME", "LDBL_DIG", "LDBL_EPSILON", "LDBL_MANT_DIG", "LDBL_MAX",
"LDBL_MAX_10_EXP", "LDBL_MAX_EXP", "LDBL_MIN", "LDBL_MIN_10_EXP",
"LDBL_MIN_EXP", "LONG_MAX", "LONG_MIN", "L_tmpnam", "MB_CUR_MAX",
"MB_LEN_MAX", "NDEBUG", "NULL", "RAND_MAX", "SCHAR_MAX",
"SCHAR_MIN", "SEEK_CUR", "SEEK_END", "SEEK_SET", "SHRT_MAX",
"SHRT_MIN", "SIGABRT", "SIGFPE", "SIGILL", "SIGINT", "SIGSEGV",
"SIGTERM", "SIG_DFL", "SIG_ERR", "SIG_IGN", "TMP_MAX", "UCHAR_MAX",
"UINT_MAX", "ULONG_MAX", "USHRT_MAX", "WCHAR_MAX", "WCHAR_MIN",
"WEOF", "_IOFBF", "_IOLBF", "_IONBF", "abort", "abs", "acos",
"acosf", "acosl", "and", "and_eq", "asctime", "asin", "asinf",
"asinl", "assert", "atan", "atan2", "atan2f", "atan2l", "atanf",
"atanl", "atexit", "atof", "atoi", "atol", "bitand", "bitor",
"bsearch", "btowc", "calloc", "ceil", "ceilf", "ceill", "clearerr",
"clock", "clock_t", "compl", "cos", "cosf", "cosh", "coshf",
"coshl", "cosl", "ctime", "difftime", "div", "div_t", "errno",
"exit", "exp", "expf", "expl", "fabs", "fabsf", "fabsl", "fclose",
"feof", "ferror", "fflush", "fgetc", "fgetpos", "fgets", "fgetwc",
"fgetws", "floor", "floorf", "floorl", "fmod", "fmodf", "fmodl",
"fopen", "fprintf", "fputc", "fputs", "fputwc", "fputws", "fread",
"free", "freopen", "frexp", "frexpf", "frexpl", "fscanf", "fseek",
"fsetpos", "ftell", "fwide", "fwprintf", "fwrite", "fwscanf",
"getc", "getchar", "getenv", "gets", "getwc", "getwchar", "gmtime",
"isalnum", "isalpha", "iscntrl", "isdigit", "isgraph", "islower",
"isprint", "ispunct", "isspace", "isupper", "iswalnum", "iswalpha",
"iswcntrl", "iswctype", "iswdigit", "iswgraph", "iswlower",
"iswprint", "iswpunct", "iswspace", "iswupper", "iswxdigit",
"isxdigit", "labs", "ldexp", "ldexpf", "ldexpl", "ldiv", "ldiv_t",
"localeconv", "localtime", "log", "log10", "log10f", "log10l",
"logf", "logl", "longjmp", "malloc", "mblen", "mbrlen", "mbrtowc",
"mbsinit", "mbsrtowcs", "mbstate_t", "mbstowcs", "mbtowc", "memchr",
"memcmp", "memcpy", "memmove", "memset", "mktime", "modf", "modff",
"modfl", "not", "not_eq", "offsetof", "or", "or_eq", "perror",
"pow", "powf", "powl", "printf", "ptrdiff_t", "putc", "putchar",
"puts", "putwc", "putwchar", "qsort", "raise", "rand", "realloc",
"remove", "rename", "rewind", "scanf", "setbuf", "setjmp",
"setlocale", "setvbuf", "sig_atomic_t", "signal", "sin", "sinf",
"sinh", "sinhf", "sinhl", "sinl", "size_t", "sprintf", "sqrt",
"sqrtf", "sqrtl", "srand", "sscanf", "stderr", "stdin", "stdout",
"strcat", "strchr", "strcmp", "strcoll", "strcpy", "strcspn",
"strerror", "strftime", "strlen", "strncat", "strncmp", "strncpy",
"strpbrk", "strrchr", "strspn", "strstr", "strtod", "strtok",
"strtol", "strtoul", "strxfrm", "swprintf", "swscanf", "system",
"tan", "tanf", "tanh", "tanhf", "tanhl", "tanl", "time", "time_t",
"tmpfile", "tmpnam", "tolower", "toupper", "towctrans", "towlower",
"towupper", "ungetc", "ungetwc", "va_arg", "va_end", "va_start",
"vfprintf", "vfwprintf", "vprintf", "vsprintf", "vswprintf",
"vwprintf", "wchar_t", "wcrtomb", "wcscat", "wcschr", "wcscmp",
"wcscoll", "wcscpy", "wcscspn", "wcsftime", "wcslen", "wcsncat",
"wcsncmp", "wcsncpy", "wcspbrk", "wcsrchr", "wcsrtombs", "wcsspn",
"wcsstr", "wcstod", "wcstok", "wcstol", "wcstombs", "wcstoul",
"wcsxfrm", "wctob", "wctomb", "wctrans", "wctrans_t", "wctype",
"wctype_t", "wint_t", "wmemchr", "wmemcmp", "wmemcpy", "wmemmove",
"wmemset", "wprintf", "wscanf", "xor", "xor_eq"
};
#define NUMBER_OF_HEADERS (sizeof header / sizeof *header)
#define NUMBER_OF_PREFIXES (sizeof prefix / sizeof *prefix)
#define NUMBER_OF_SUFFIXES (sizeof suffix / sizeof *suffix)
#define NUMBER_OF_MACROS (sizeof macros / sizeof *macros)
/* Format string to build command to invoke compiler. */
static const char fmt[] = "\
echo \"#include <%s>\" |\
%s -E -dM -ansi -pedantic %s -D_LIBC -I. -I `%s --print-prog-name=include` -\
> %s";
/* The compiler we use (given on the command line). */
char *CC;
/* The -I parameters for CC to find all headers. */
char *INC;
static const char **get_null_defines (void);
static int check_header (const char *, const char **);
int
main (int argc, char *argv[])
{
int h;
int result = 0;
const char **ignore_list;
CC = argc > 1 ? argv[1] : "gcc";
INC = argc > 2 ? argv[2] : "";
if (system (NULL) == 0)
{
puts ("Sorry, no command processor.");
return EXIT_FAILURE;
}
/* First get list of symbols which are defined by the compiler. */
ignore_list = get_null_defines ();
for (h = 0; h < NUMBER_OF_HEADERS; ++h)
{
char file_name[HEADER_MAX];
sprintf (file_name, "%s.h", header[h]);
result |= check_header (file_name, ignore_list);
}
/* The test suite should return errors but for now this is not
practical. Give a warning and ask the user to correct the bugs. */
return result;
}
static const char **
get_null_defines (void)
{
char line[BUFSIZ], *command;
char **result = NULL;
size_t result_len = 0;
size_t result_max = 0;
FILE *input;
int first = 1;
command = malloc (sizeof fmt + sizeof "/dev/null" + 2 * strlen (CC)
+ strlen (INC) + strlen (TMPFILE));
if (command == NULL)
{
puts ("No more memory.");
exit (1);
}
sprintf (command, fmt, "/dev/null", CC, INC, CC, TMPFILE);
if (system (command))
{
puts ("system() returned nonzero");
return NULL;
}
free (command);
input = fopen (TMPFILE, "r");
if (input == NULL)
{
printf ("Could not read %s: ", TMPFILE);
perror (NULL);
return NULL;
}
while (fgets (line, sizeof line, input) != NULL)
{
int i, okay = 0;
size_t endmac;
char *start, *end;
if (strlen (line) < 9 || line[7] != ' ')
{ /* "#define A" */
printf ("Malformed input, expected '#define MACRO'\ngot '%s'\n",
line);
continue;
}
if (line[8] == '_')
/* It's a safe identifier. */
continue;
if (result_len == result_max)
{
result_max += 10;
result = realloc (result, result_max * sizeof (char **));
if (result == NULL)
{
puts ("No more memory.");
exit (1);
}
}
start = &line[8];
for (end = start + 1; !isspace (*end) && *end != '\0'; ++end)
;
result[result_len++] = strndup (start, end - start);
if (first)
{
fputs ("The following identifiers will be ignored since the compiler defines them\nby default:\n", stdout);
first = 0;
}
puts (result[result_len - 1]);
}
fclose (input);
remove (TMPFILE);
return (const char **) result;
}
static int
check_header (const char *file_name, const char **except)
{
char line[BUFSIZ], *command;
FILE *input;
int result = 0;
command = malloc (sizeof fmt + strlen (file_name) + 2 * strlen (CC)
+ strlen (INC) + strlen (TMPFILE));
if (command == NULL)
{
puts ("No more memory.");
exit (1);
}
puts (file_name);
sprintf (command, fmt, file_name, CC, INC, CC, TMPFILE);
if (system (command))
{
puts ("system() returned nonzero");
result = 1;
}
free (command);
input = fopen (TMPFILE, "r");
if (input == NULL)
{
printf ("Could not read %s: ", TMPFILE);
perror (NULL);
return 1;
}
while (fgets (line, sizeof line, input) != NULL)
{
int i, okay = 0;
size_t endmac;
const char **cpp;
if (strlen (line) < 9 || line[7] != ' ')
{ /* "#define A" */
printf ("Malformed input, expected '#define MACRO'\ngot '%s'\n",
line);
result = 1;
continue;
}
for (i = 0; i < NUMBER_OF_PREFIXES; ++i)
{
if (!strncmp (line+8, prefix[i], strlen (prefix[i]))) {
++okay;
break;
}
}
if (okay)
continue;
for (i = 0; i < NUMBER_OF_MACROS; ++i)
{
if (!strncmp (line + 8, macros[i], strlen (macros[i])))
{
++okay;
break;
}
}
if (okay)
continue;
/* Find next char after the macro identifier; this can be either
a space or an open parenthesis. */
endmac = strcspn (line + 8, " (");
if (line[8+endmac] == '\0')
{
printf ("malformed input, expected '#define MACRO VALUE'\n"
"got '%s'\n", line);
result = 1;
continue;
}
for (i = 0; i < NUMBER_OF_SUFFIXES; ++i)
{
size_t len = strlen (suffix[i]);
if (!strncmp (line + 8 + endmac - len, suffix[i], len))
{
++okay;
break;
}
}
if (okay)
continue;
if (except != NULL)
for (cpp = except; *cpp != NULL; ++cpp)
{
size_t len = strlen (*cpp);
if (!strncmp (line + 8, *cpp, len) && isspace (line[8 + len]))
{
++okay;
break;
}
}
if (!okay)
{
fputs (line, stdout);
result = 2;
}
}
fclose (input);
remove (TMPFILE);
return result;
}
/* EOF */