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authorUlrich Drepper <drepper@redhat.com>1997-04-08 23:42:08 +0000
committerUlrich Drepper <drepper@redhat.com>1997-04-08 23:42:08 +0000
commitc131718ccc1db101df54fb04f34f5611c3678450 (patch)
tree14fd2f6b9e1cc7f3cfbf03da2f95bb56c8be94af /isomac.c
parent26dee9c49cbbec8826db4c29e99fb50d9392a047 (diff)
downloadglibc-c131718ccc1db101df54fb04f34f5611c3678450.tar.gz
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.
Diffstat (limited to 'isomac.c')
-rw-r--r--isomac.c138
1 files changed, 114 insertions, 24 deletions
diff --git a/isomac.c b/isomac.c
index fc6de89558..11d0ecdcb7 100644
--- a/isomac.c
+++ b/isomac.c
@@ -67,6 +67,10 @@
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>
@@ -168,18 +172,28 @@ static char *macros[] =
#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 int check_header (const char *);
+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] : "";
@@ -190,44 +204,107 @@ main (int argc, char *argv[])
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);
+ result |= check_header (file_name, ignore_list);
}
-
-#if 0
/* 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;
-#else
- if (result)
- fputs ("\
-##########################################################################\n\
-# The test suite found some problems with your system (see the generated #\n\
-# isomac.out file). These are all violations of the ISO C rules and #\n\
-# should be corrected. If the problem is in the libc, report it using #\n\
-# the glibcbug script to <bugs@gnu.ai.mit.edu>. If it is a problem with #\n\
-# your compiler, contact the compiler manufacturer. #\n\
-##########################################################################\n",
- stderr);
-
- return 0;
-#endif
}
+
+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)
+check_header (const char *file_name, const char **except)
{
char line[BUFSIZ], *command;
FILE *input;
int result = 0;
- static const char fmt[] = "\
-echo \"#include <%s>\" |\
-%s -E -dM -ansi -pedantic %s -D_LIBC -I. -I `%s --print-prog-name=include` -\
-> %s";
command = malloc (sizeof fmt + strlen (file_name) + 2 * strlen (CC)
+ strlen (INC) + strlen (TMPFILE));
@@ -260,6 +337,7 @@ echo \"#include <%s>\" |\
{
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",
@@ -278,7 +356,7 @@ echo \"#include <%s>\" |\
continue;
for (i = 0; i < NUMBER_OF_MACROS; ++i)
{
- if (!strncmp (line+8, macros[i], strlen (macros[i])))
+ if (!strncmp (line + 8, macros[i], strlen (macros[i])))
{
++okay;
break;
@@ -305,6 +383,18 @@ echo \"#include <%s>\" |\
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);