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-rw-r--r--ChangeLog13
-rw-r--r--bits/confname.h4
-rw-r--r--nptl/ChangeLog8
-rw-r--r--nptl/sysdeps/i386/i686/Makefile13
-rw-r--r--posix/getconf.c3
-rw-r--r--sysdeps/generic/bits/confname.h4
-rw-r--r--sysdeps/posix/fpathconf.c7
-rw-r--r--sysdeps/posix/pathconf.c7
-rw-r--r--sysdeps/unix/sysv/linux/fpathconf.c7
-rw-r--r--sysdeps/unix/sysv/linux/linux_fsinfo.h6
-rw-r--r--sysdeps/unix/sysv/linux/pathconf.c7
-rw-r--r--sysdeps/unix/sysv/linux/pathconf.h41
12 files changed, 108 insertions, 12 deletions
diff --git a/ChangeLog b/ChangeLog
index 0e2eb34e0e..caaeed936c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2003-03-13 Ulrich Drepper <drepper@redhat.com>
+
+ * posix/getconf.c: Recognize POSIX2_SYMLINKS.
+ * sysdeps/generic/bits/confname.h: Define _PC_2_SYMLINKS.
+ * sysdeps/posix/fpathconf.c: Handle _PC_2_SYMLINKS.
+ * sysdeps/posix/pathconf.c: Likewise.
+ * sysdeps/unix/sysv/linux/fpathconf.c: Likewise.
+ * sysdeps/unix/sysv/linux/pathconf.c: Likewise.
+ * sysdeps/unix/sysv/linux/pathconf.h: Define statfs_symlinks.
+
+ * sysdeps/unix/sysv/linux/linux_fsinfo.h: Define some more magic
+ words.
+
2003-03-14 Alexandre Oliva <aoliva@redhat.com>
* include/gmp.h: Include/gmp-mparam.h.
diff --git a/bits/confname.h b/bits/confname.h
index 8fecb8a40f..a12edab698 100644
--- a/bits/confname.h
+++ b/bits/confname.h
@@ -62,8 +62,10 @@ enum
#define _PC_REC_XFER_ALIGN _PC_REC_XFER_ALIGN
_PC_ALLOC_SIZE_MIN,
#define _PC_ALLOC_SIZE_MIN _PC_ALLOC_SIZE_MIN
- _PC_SYMLINK_MAX
+ _PC_SYMLINK_MAX,
#define _PC_SYMLINK_MAX _PC_SYMLINK_MAX
+ _PC_2_SYMLINKS
+#define _PC_2_SYMLINKS _PC_2_SYMLINKS
};
/* Values for the argument to `sysconf'. */
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 37464db175..c24573a2c4 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,11 @@
+2003-03-13 Ulrich Drepper <drepper@redhat.com>
+
+ * allocatestack.c (allocate_stack): If MULTI_PAGE_ALIASING is defined
+ and the size of the stack which must be allocated is a multiple,
+ allocate one more page.
+ * sysdeps/i386/i686/Makefile: Don't define COLORING_INCREMENT, but
+ MULTI_PAGE_ALIASING.
+
2003-03-13 Roland McGrath <roland@redhat.com>
* pthread_create.c (start_thread): Set EXITING_BIT after the
diff --git a/nptl/sysdeps/i386/i686/Makefile b/nptl/sysdeps/i386/i686/Makefile
index 493a7ec49f..137c0a2f0c 100644
--- a/nptl/sysdeps/i386/i686/Makefile
+++ b/nptl/sysdeps/i386/i686/Makefile
@@ -18,6 +18,15 @@
# 02111-1307 USA.
ifeq ($(subdir),nptl)
-# For P4 processors we color the stack in 128 bit steps.
-CFLAGS-pthread_create.c += -DCOLORING_INCREMENT=128
+# It turns out that stack coloring is in general not good on P4s. Some
+# applications will benefit. We will probably have a configuration option
+# at some point. Enabling coloring can be done with
+#
+# -DCOLORING_INCREMENT=128
+#
+# What is useful is to avoid the 64k aliasing problem which reliably
+# happens if all stacks use sizes which are a multiple of 64k. Tell
+# the stack allocator to disturb this by allocation one more page if
+# necessary.
+CFLAGS-pthread_create.c += -DMULTI_PAGE_ALIASING=65536
endif
diff --git a/posix/getconf.c b/posix/getconf.c
index e687225434..afe36018ce 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -865,6 +865,9 @@ static const struct conf vars[] =
#ifdef _CS_GNU_LIBPTHREAD_VERSION
{ "GNU_LIBPTHREAD_VERSION", _CS_GNU_LIBPTHREAD_VERSION, CONFSTR },
#endif
+#ifdef _PC_2_SYMLINKS
+ { "POSIX2_SYMLINKS", _PC_2_SYMLINKS, PATHCONF },
+#endif
{ NULL, 0, SYSCONF }
};
diff --git a/sysdeps/generic/bits/confname.h b/sysdeps/generic/bits/confname.h
index 8fecb8a40f..a12edab698 100644
--- a/sysdeps/generic/bits/confname.h
+++ b/sysdeps/generic/bits/confname.h
@@ -62,8 +62,10 @@ enum
#define _PC_REC_XFER_ALIGN _PC_REC_XFER_ALIGN
_PC_ALLOC_SIZE_MIN,
#define _PC_ALLOC_SIZE_MIN _PC_ALLOC_SIZE_MIN
- _PC_SYMLINK_MAX
+ _PC_SYMLINK_MAX,
#define _PC_SYMLINK_MAX _PC_SYMLINK_MAX
+ _PC_2_SYMLINKS
+#define _PC_2_SYMLINKS _PC_2_SYMLINKS
};
/* Values for the argument to `sysconf'. */
diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
index 642bedaa0c..605cd171d0 100644
--- a/sysdeps/posix/fpathconf.c
+++ b/sysdeps/posix/fpathconf.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991,1995,1996,1998,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995,1996,1998,2000,2001,2003
+ 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
@@ -229,6 +230,10 @@ __fpathconf (fd, name)
/* In general there are no limits. If a system has one it should
overwrite this case. */
return -1;
+
+ case _PC_2_SYMLINKS:
+ /* Unix systems generally have symlinks. */
+ return 1;
}
}
diff --git a/sysdeps/posix/pathconf.c b/sysdeps/posix/pathconf.c
index 7e3fd0371c..75c99ee5c0 100644
--- a/sysdeps/posix/pathconf.c
+++ b/sysdeps/posix/pathconf.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991,1995,1996,1998,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995,1996,1998,2000,2001,2003
+ 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
@@ -225,6 +226,10 @@ __pathconf (const char *path, int name)
/* In general there are no limits. If a system has one it should
overwrite this case. */
return -1;
+
+ case _PC_2_SYMLINKS:
+ /* Unix systems generally have symlinks. */
+ return 1;
}
}
diff --git a/sysdeps/unix/sysv/linux/fpathconf.c b/sysdeps/unix/sysv/linux/fpathconf.c
index 4dd6059974..9eca7175cc 100644
--- a/sysdeps/unix/sysv/linux/fpathconf.c
+++ b/sysdeps/unix/sysv/linux/fpathconf.c
@@ -1,5 +1,5 @@
/* Get file-specific information about descriptor FD. Linux version.
- Copyright (C) 1991,95,96,98,99,2000,2001,2002 Free Software Foundation, Inc.
+ Copyright (C) 1991,1995,1996,1998-2002,2003 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
@@ -38,8 +38,13 @@ __fpathconf (fd, name)
{
case _PC_LINK_MAX:
return statfs_link_max (__fstatfs (fd, &fsbuf), &fsbuf);
+
case _PC_FILESIZEBITS:
return statfs_filesize_max (__fstatfs (fd, &fsbuf), &fsbuf);
+
+ case _PC_2_SYMLINKS:
+ return statfs_symlinks (__fstatfs (fd, &fsbuf), &fsbuf);
+
default:
return posix_fpathconf (fd, name);
}
diff --git a/sysdeps/unix/sysv/linux/linux_fsinfo.h b/sysdeps/unix/sysv/linux/linux_fsinfo.h
index 0e67fe7245..d108753085 100644
--- a/sysdeps/unix/sysv/linux/linux_fsinfo.h
+++ b/sysdeps/unix/sysv/linux/linux_fsinfo.h
@@ -1,5 +1,5 @@
/* Constants from kernel header for various FSes.
- Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1998,1999,2000,2001,2002,2003 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
@@ -40,6 +40,9 @@
/* Constants that identify the `coherent' filesystem. */
#define COH_SUPER_MAGIC 0x012ff7b7
+/* Constant that identifies the `ramfs' filesystem. */
+#define CRAMFS_MAGIC 0x28cd3d45
+
/* Constant that identifies the `devfs' filesystem. */
#define DEVFS_SUPER_MAGIC 0x1373
@@ -48,6 +51,7 @@
/* Constant that identifies the `efs' filesystem. */
#define EFS_SUPER_MAGIC 0x414A53
+#define EFS_MAGIC 0x072959
/* Constant that identifies the `ext2' and `ext3' filesystems. */
#define EXT2_SUPER_MAGIC 0xef53
diff --git a/sysdeps/unix/sysv/linux/pathconf.c b/sysdeps/unix/sysv/linux/pathconf.c
index 6115335334..b4886158f3 100644
--- a/sysdeps/unix/sysv/linux/pathconf.c
+++ b/sysdeps/unix/sysv/linux/pathconf.c
@@ -1,5 +1,5 @@
/* Get file-specific information about a file. Linux version.
- Copyright (C) 1991,95,96,98,99,2000,2001,2002 Free Software Foundation, Inc.
+ Copyright (C) 1991,1995,1996,1998-2002,2003 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
@@ -36,8 +36,13 @@ __pathconf (const char *file, int name)
{
case _PC_LINK_MAX:
return statfs_link_max (__statfs (file, &fsbuf), &fsbuf);
+
case _PC_FILESIZEBITS:
return statfs_filesize_max (__statfs (file, &fsbuf), &fsbuf);
+
+ case _PC_2_SYMLINKS:
+ return statfs_symlinks (__statfs (file, &fsbuf), &fsbuf);
+
default:
return posix_pathconf (file, name);
}
diff --git a/sysdeps/unix/sysv/linux/pathconf.h b/sysdeps/unix/sysv/linux/pathconf.h
index b7f201d436..80ec8fa4e0 100644
--- a/sysdeps/unix/sysv/linux/pathconf.h
+++ b/sysdeps/unix/sysv/linux/pathconf.h
@@ -1,5 +1,5 @@
/* Common parts of Linux implementation of pathconf and fpathconf.
- Copyright (C) 1991,95,96,98,99,2000,2001,2002 Free Software Foundation, Inc.
+ Copyright (C) 1991,1995,1996,1998-2002,2003 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
@@ -22,8 +22,8 @@
#include <sys/statfs.h>
#include "linux_fsinfo.h"
-/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */
+/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */
static inline long int
statfs_link_max (int result, const struct statfs *fsbuf)
{
@@ -75,8 +75,8 @@ statfs_link_max (int result, const struct statfs *fsbuf)
}
}
-/* Used like: return statfs_filesize_max (__statfs (name, &buf), &buf); */
+/* Used like: return statfs_filesize_max (__statfs (name, &buf), &buf); */
static inline long int
statfs_filesize_max (int result, const struct statfs *fsbuf)
{
@@ -114,3 +114,38 @@ statfs_filesize_max (int result, const struct statfs *fsbuf)
return 32;
}
}
+
+
+/* Used like: return statfs_link_max (__statfs (name, &buf), &buf); */
+static inline long int
+statfs_symlinks (int result, const struct statfs *fsbuf)
+{
+ if (result < 0)
+ {
+ if (errno == ENOSYS)
+ /* Not possible, return the default value. */
+ return 1;
+
+ /* Some error occured. */
+ return -1;
+ }
+
+ switch (fsbuf->f_type)
+ {
+ case ADFS_SUPER_MAGIC:
+ case BFS_MAGIC:
+ case CRAMFS_MAGIC:
+ case DEVPTS_SUPER_MAGIC:
+ case EFS_SUPER_MAGIC:
+ case EFS_MAGIC:
+ case MSDOS_SUPER_MAGIC:
+ case NTFS_SUPER_MAGIC:
+ case QNX4_SUPER_MAGIC:
+ case ROMFS_SUPER_MAGIC:
+ /* No symlink support. */
+ return 0;
+
+ default:
+ return 1;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-12 17:57:17 +0000