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authorUlrich Drepper <drepper@redhat.com>2004-11-26 08:16:33 +0000
committerUlrich Drepper <drepper@redhat.com>2004-11-26 08:16:33 +0000
commit28f367c4e3da4bd7515d11390514dbf2b751eda9 (patch)
tree9b7d054c4707f0528f80eaf7d46e26c84e9f0b67 /posix
parent90692538658ce0c42abacb0c053c7e88bc5d649d (diff)
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Update.
* posix/Makefile (install-others): Add $(inst_libexecdir)/getconf. (CFLAGS-sysconf.c): Add -D_GETCONF_DIR. (CFLAGS-getconf.c): New. ($(inst_libexecdir)/getconf): New. * posix/confstr.c (confstr): Use __sysconf to query specifications that don't have _POSIX_V6_* macros defined. Use __*_{C,LD}FLAGS macros defined in bits/environments.h. * sysdeps/posix/sysconf.c: Include stdlib.h, string.h and sys/stat.h. (__sysconf_check_spec): New routine. (__sysconf): Use it. * posix/getconf.c (specs): Change into structure array. (main): If -v is not given, try to get default from $(libexecdir)/getconf/default. If specification is not supported by this getconf, try to execute $(libexecdir)/getconf/$(specification). * sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h: New file. * sysdeps/unix/sysv/linux/s390/bits/environments.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/environments.h: New file. * sysdeps/unix/sysv/linux/sparc/bits/environments.h: New file. * sysdeps/unix/sysv/linux/i386/bits/environments.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/environments.h: New file. * sysdeps/generic/bits/environments.h (__ILP32_OFFBIG_CFLAGS): Define. 2004-11-26 Jakub Jelinek <jakub@redhat.com>
Diffstat (limited to 'posix')
-rw-r--r--posix/Makefile14
-rw-r--r--posix/confstr.c185
-rw-r--r--posix/getconf.c73
3 files changed, 211 insertions, 61 deletions
diff --git a/posix/Makefile b/posix/Makefile
index c89cfc0b41..faee4bbd54 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -91,6 +91,7 @@ tests += wordexp-test tst-exec tst-spawn
endif
others := getconf
install-bin := getconf
+install-others := $(inst_libexecdir)/getconf
before-compile := testcases.h ptestcases.h
@@ -138,7 +139,7 @@ CFLAGS-waitid.c = -fexceptions
CFLAGS-waitpid.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-getopt.c = -fexceptions
CFLAGS-wordexp.c = -fexceptions
-CFLAGS-sysconf.c = -fexceptions
+CFLAGS-sysconf.c = -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
CFLAGS-pathconf.c = -fexceptions
CFLAGS-fpathconf.c = -fexceptions
CFLAGS-spawn.c = -fexceptions
@@ -147,6 +148,7 @@ CFLAGS-spawni.c = -fexceptions
CFLAGS-pause.c = -fexceptions
CFLAGS-glob.c = $(uses-callbacks) -fexceptions
CFLAGS-glob64.c = $(uses-callbacks) -fexceptions
+CFLAGS-getconf.c = -DGETCONF_DIR='"$(libexecdir)/getconf"'
tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
--none random --col --color --colour
@@ -260,3 +262,13 @@ bug-glob2-ENV = MALLOC_TRACE=$(objpfx)bug-glob2.mtrace
$(objpfx)bug-glob2-mem: $(objpfx)bug-glob2.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-glob2.mtrace > $@
+
+$(inst_libexecdir)/getconf: $(objpfx)getconf FORCE
+ $(addprefix $(..)./scripts/mkinstalldirs ,\
+ $(filter-out $(wildcard $@),$@))
+ for spec in `LC_ALL=C GETCONF_DIR=/dev/null \
+ $(run-program-prefix) $< \
+ _POSIX_V6_WIDTH_RESTRICTED_ENVS`; do \
+ $(INSTALL_PROGRAM) $< $@/$$spec.new; \
+ mv -f $@/$$spec.new $@/$$spec; \
+ done
diff --git a/posix/confstr.c b/posix/confstr.c
index ace60fd273..6b0dcf0c20 100644
--- a/posix/confstr.c
+++ b/posix/confstr.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991,96,97,2000-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 1997, 2000-2002, 2003, 2004
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -54,50 +55,153 @@ confstr (name, buf, len)
Currently this means all environment which the system allows. */
{
- static const char restenvs[] =
-#if _POSIX_V6_ILP32_OFF32 > 0
- "_POSIX_V6_ILP32_OFF32"
+ char restenvs[4 * sizeof "_POSIX_V6_LPBIG_OFFBIG"];
+
+ string_len = 0;
+#ifndef _POSIX_V6_ILP32_OFF32
+ if (__sysconf (_SC_V6_ILP32_OFF32) > 0)
#endif
-#if _POSIX_V6_ILP32_OFFBIG > 0
-# if _POSIX_V6_ILP32_OFF32 > 0
- "\n"
-# endif
- "_POSIX_V6_ILP32_OFFBIG"
+#if !defined _POSIX_V6_ILP32_OFF32 || _POSIX_V6_ILP32_OFF32 > 0
+ {
+ memcpy (restenvs + string_len, "_POSIX_V6_ILP32_OFF32",
+ sizeof "_POSIX_V6_ILP32_OFF32" - 1);
+ string_len += sizeof "_POSIX_V6_ILP32_OFF32" - 1;
+ }
#endif
-#if _POSIX_V6_LP64_OFF64 > 0
-# if _POSIX_V6_ILP32_OFF32 > 0 || _POSIX_V6_ILP32_OFFBIG > 0
- "\n"
-# endif
- "_POSIX_V6_LP64_OFF64"
+#ifndef _POSIX_V6_ILP32_OFFBIG
+ if (__sysconf (_SC_V6_ILP32_OFFBIG) > 0)
#endif
-#if _POSIX_V6_LPBIG_OFFBIG > 0
-# if _POSIX_V6_ILP32_OFF32 > 0 || _POSIX_V6_ILP32_OFFBIG > 0 \
- || _POSIX_V6_LP64_OFF64 > 0
- "\n"
-# endif
- "_POSIX_V6_LPBIG_OFFBIG"
+#if !defined _POSIX_V6_ILP32_OFFBIG || _POSIX_V6_ILP32_OFFBIG > 0
+ {
+ if (string_len)
+ restenvs[string_len++] = '\n';
+ memcpy (restenvs + string_len, "_POSIX_V6_ILP32_OFFBIG",
+ sizeof "_POSIX_V6_ILP32_OFFBIG" - 1);
+ string_len += sizeof "_POSIX_V6_ILP32_OFFBIG" - 1;
+ }
+#endif
+#ifndef _POSIX_V6_LP64_OFF64
+ if (__sysconf (_SC_V6_LP64_OFF64) > 0)
+#endif
+#if !defined _POSIX_V6_LP64_OFF64 || _POSIX_V6_LP64_OFF64 > 0
+ {
+ if (string_len)
+ restenvs[string_len++] = '\n';
+ memcpy (restenvs + string_len, "_POSIX_V6_LP64_OFF64",
+ sizeof "_POSIX_V6_LP64_OFF64" - 1);
+ string_len += sizeof "_POSIX_V6_LP64_OFF64" - 1;
+ }
+#endif
+#ifndef _POSIX_V6_LPBIG_OFFBIG
+ if (__sysconf (_SC_V6_LPBIG_OFFBIG) > 0)
+#endif
+#if !defined _POSIX_V6_LPBIG_OFFBIG || _POSIX_V6_LPBIG_OFFBIG > 0
+ {
+ if (string_len)
+ restenvs[string_len++] = '\n';
+ memcpy (restenvs + string_len, "_POSIX_V6_LPBIG_OFFBIG",
+ sizeof "_POSIX_V6_LPBIG_OFFBIG" - 1);
+ string_len += sizeof "_POSIX_V6_LPBIG_OFFBIG" - 1;
+ }
#endif
- ;
+ restenvs[string_len++] = '\0';
string = restenvs;
- string_len = sizeof (restenvs);
}
break;
+ case _CS_XBS5_ILP32_OFF32_CFLAGS:
+ case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
+#ifdef __ILP32_OFF32_CFLAGS
+# if _POSIX_V6_ILP32_OFF32 == -1
+# error __ILP32_OFF32_CFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFF32
+ if (__sysconf (_SC_V6_ILP32_OFF32) < 0)
+ break;
+# endif
+ string = __ILP32_OFF32_CFLAGS;
+ string_len = sizeof (__ILP32_OFF32_CFLAGS);
+#endif
+ break;
+
case _CS_XBS5_ILP32_OFFBIG_CFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS:
+#ifdef __ILP32_OFFBIG_CFLAGS
+# if _POSIX_V6_ILP32_OFFBIG == -1
+# error __ILP32_OFFBIG_CFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFFBIG
+ if (__sysconf (_SC_V6_ILP32_OFFBIG) < 0)
+ break;
+# endif
+ string = __ILP32_OFFBIG_CFLAGS;
+ string_len = sizeof (__ILP32_OFFBIG_CFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_LP64_OFF64_CFLAGS:
+ case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
+#ifdef __LP64_OFF64_CFLAGS
+# if _POSIX_V6_LP64_OFF64 == -1
+# error __LP64_OFF64_CFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_LP64_OFF64
+ if (__sysconf (_SC_V6_LP64_OFF64) < 0)
+ break;
+# endif
+ string = __LP64_OFF64_CFLAGS;
+ string_len = sizeof (__LP64_OFF64_CFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_ILP32_OFF32_LDFLAGS:
+ case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
+#ifdef __ILP32_OFF32_LDFLAGS
+# if _POSIX_V6_ILP32_OFF32 == -1
+# error __ILP32_OFF32_LDFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFF32
+ if (__sysconf (_SC_V6_ILP32_OFF32) < 0)
+ break;
+# endif
+ string = __ILP32_OFF32_LDFLAGS;
+ string_len = sizeof (__ILP32_OFF32_LDFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_ILP32_OFFBIG_LDFLAGS:
+ case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
+#ifdef __ILP32_OFFBIG_LDFLAGS
+# if _POSIX_V6_ILP32_OFFBIG == -1
+# error __ILP32_OFFBIG_LDFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFFBIG
+ if (__sysconf (_SC_V6_ILP32_OFFBIG) < 0)
+ break;
+# endif
+ string = __ILP32_OFFBIG_LDFLAGS;
+ string_len = sizeof (__ILP32_OFFBIG_LDFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_LP64_OFF64_LDFLAGS:
+ case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
+#ifdef __LP64_OFF64_LDFLAGS
+# if _POSIX_V6_LP64_OFF64 == -1
+# error __LP64_OFF64_LDFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_LP64_OFF64
+ if (__sysconf (_SC_V6_LP64_OFF64) < 0)
+ break;
+# endif
+ string = __LP64_OFF64_LDFLAGS;
+ string_len = sizeof (__LP64_OFF64_LDFLAGS);
+#endif
+ break;
+
case _CS_LFS_CFLAGS:
case _CS_LFS_LINTFLAGS:
-#if _XBS5_LP64_OFF64 == -1 && _XBS5_LPBIG_OFFBIG == -1 && _XBS5_ILP32_OFFBIG == 1
+#if _POSIX_V6_ILP32_OFF32 == 1 && _POSIX_V6_ILP32_OFFBIG == 1
+# define __LFS_CFLAGS "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
/* Signal that we want the new ABI. */
- {
- static const char file_offset[]
- = "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";
- string = file_offset;
- string_len = sizeof (file_offset);
- }
- break;
+ string = __LFS_CFLAGS;
+ string_len = sizeof (__LFS_CFLAGS);
#endif
- /* FALLTHROUGH */
+ break;
case _CS_LFS_LDFLAGS:
case _CS_LFS_LIBS:
@@ -106,12 +210,9 @@ confstr (name, buf, len)
case _CS_LFS64_CFLAGS:
case _CS_LFS64_LINTFLAGS:
- if (sizeof (off_t) != sizeof (off64_t))
- {
- static const char lf64_source[] = "-D_LARGEFILE64_SOURCE";
- string = lf64_source;
- string_len = sizeof (lf64_source);
- }
+#define __LFS64_CFLAGS "-D_LARGEFILE64_SOURCE"
+ string = __LFS64_CFLAGS;
+ string_len = sizeof (__LFS64_CFLAGS);
break;
case _CS_LFS64_LDFLAGS:
@@ -119,15 +220,10 @@ confstr (name, buf, len)
/* No special libraries or linker flags needed. */
break;
- case _CS_XBS5_ILP32_OFF32_CFLAGS:
- case _CS_XBS5_ILP32_OFF32_LDFLAGS:
case _CS_XBS5_ILP32_OFF32_LIBS:
case _CS_XBS5_ILP32_OFF32_LINTFLAGS:
- case _CS_XBS5_ILP32_OFFBIG_LDFLAGS:
case _CS_XBS5_ILP32_OFFBIG_LIBS:
case _CS_XBS5_ILP32_OFFBIG_LINTFLAGS:
- case _CS_XBS5_LP64_OFF64_CFLAGS:
- case _CS_XBS5_LP64_OFF64_LDFLAGS:
case _CS_XBS5_LP64_OFF64_LIBS:
case _CS_XBS5_LP64_OFF64_LINTFLAGS:
case _CS_XBS5_LPBIG_OFFBIG_CFLAGS:
@@ -135,15 +231,10 @@ confstr (name, buf, len)
case _CS_XBS5_LPBIG_OFFBIG_LIBS:
case _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS:
- case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
- case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
case _CS_POSIX_V6_ILP32_OFF32_LIBS:
case _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS:
- case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_LIBS:
case _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS:
- case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
- case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
case _CS_POSIX_V6_LP64_OFF64_LIBS:
case _CS_POSIX_V6_LP64_OFF64_LINTFLAGS:
case _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS:
diff --git a/posix/getconf.c b/posix/getconf.c
index 2f68003ff3..6175dfec26 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -917,12 +917,12 @@ static const struct conf vars[] =
};
-static const char *specs[] =
+static struct { const char *name; int num; } specs[] =
{
- "POSIX_V6_ILP32_OFF32",
- "POSIX_V6_ILP32_OFFBIG",
- "POSIX_V6_LP64_OFF64",
- "POSIX_V6_LPBIG_OFFBIG"
+ { "POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32 },
+ { "POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG },
+ { "POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64 },
+ { "POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG }
};
static const int nspecs = sizeof (specs) / sizeof (specs[0]);
@@ -963,11 +963,14 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
return 0;
}
+ const char *getconf_dir = getenv ("GETCONF_DIR") ?: GETCONF_DIR;
+ size_t getconf_dirlen = strlen (getconf_dir);
+
+ const char *spec = NULL;
+ char buf[sizeof "POSIX_V6_LPBIG_OFFBIG"];
+ char *argv0 = argv[0];
if (argc > 1 && strncmp (argv[1], "-v", 2) == 0)
{
- const char *spec;
- int i;
-
if (argv[1][2] == '\0')
{
if (argc < 3)
@@ -983,18 +986,62 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
argv += 1;
argc += 1;
}
+ }
+ else
+ {
+ char default_name[getconf_dirlen + sizeof "/default"];
+ memcpy (mempcpy (default_name, getconf_dir, getconf_dirlen),
+ "/default", sizeof "/default");
+ int len = readlink (default_name, buf, sizeof buf - 1);
+ if (len > 0)
+ {
+ buf[len] = '\0';
+ spec = buf;
+ }
+ }
- /* Check for the specifications we know. This is simple in the
- moment. */
+ /* Check for the specifications we know. */
+ if (spec != NULL)
+ {
+ int i;
for (i = 0; i < nspecs; ++i)
- if (strcmp (spec, specs[i]) == 0)
+ if (strcmp (spec, specs[i].name) == 0)
break;
if (i == nspecs)
error (2, 0, _("unknown specification \"%s\""), spec);
- /* And now we forget the specification. We don't do anything different
- with or without it. */
+ switch (specs[i].num)
+ {
+#ifndef _POSIX_V6_ILP32_OFF32
+ case _SC_V6_ILP32_OFF32:
+#endif
+#ifndef _POSIX_V6_ILP32_OFFBIG
+ case _SC_V6_ILP32_OFFBIG:
+#endif
+#ifndef _POSIX_V6_LP64_OFF64
+ case _SC_V6_LP64_OFF64:
+#endif
+#ifndef _POSIX_V6_LPBIG_OFFBIG
+ case _SC_V6_LPBIG_OFFBIG:
+#endif
+ {
+ const char *args[argc + 3];
+ size_t spec_len = strlen (spec);
+ char getconf_name[getconf_dirlen + 2 + spec_len + 1];
+ memcpy (mempcpy (mempcpy (getconf_name, getconf_dir,
+ getconf_dirlen),
+ "/_", 2), spec, spec_len + 1);
+ args[0] = argv0;
+ args[1] = "-v";
+ args[2] = spec;
+ memcpy (&args[3], &argv[1], argc * sizeof (argv[1]));
+ execv (getconf_name, (char * const *) args);
+ error (4, errno, _("Couldn't execute %s"), getconf_name);
+ }
+ default:
+ break;
+ }
}
if (argc < 2 || argc > 3)