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authorRoland McGrath <roland@gnu.org>1996-06-13 04:06:45 +0000
committerRoland McGrath <roland@gnu.org>1996-06-13 04:06:45 +0000
commit4d6acc61fa6892b40eaf94de4ff506ff83e37490 (patch)
treec8a1bd7697d78a986db11ef2204bfff40cff58b6
parent4d5da9a6546481656ec72f31aa2d766ca5a83226 (diff)
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Thu Jun 13 00:02:25 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* elf/dl-lookup.c (_dl_lookup_symbol): If no value and *REF is null, consider it a strong reference and give the error. Wed Jun 12 15:52:46 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * elf/dl-open.c (_dl_open): Correctly terminate relocating loop after relocating NEW when it's the only new object. * elf/dl-init.c (_dl_init_next): When out of initializers, set _r_debug.r_state to RT_CONSISTENT and call _dl_debug_state just before return. * elf/rtld.c (dl_main): Move _dl_debug_initialize call after relocation. Call it unconditionally and only fill in DT_DEBUG if it's present. Then call _dl_debug_state with r_state RT_ADD before running initializers. * elf/dl-open.c (_dl_open): Call _dl_debug_initialize and then call _dl_debug_state with r_state RT_ADD before running initializers * elf/dl-close.c (_dl_close): Call _dl_debug_state with r_state RT_DELETE before running finalizers and with RT_CONSISTENT just before return. * elf/Makefile (dl-routines): Add dl-debug. * elf/dl-debug.c: New file. * elf/rtld.c (_dl_r_debug): Rename to _r_debug and move to dl-debug.c. (_dl_r_debug_state): Rename to _dl_debug_state and likewise move. (dl_main): Use _dl_debug_initialize. * elf/link.h: Fix name to _dl_debug_state in decl. (_dl_debug_initialize): Declare new function from dl-debug.c. (_r_debug): Declare it. * Makerules (distinfo-vars): Add install-{lib,data,bin,sbin,others}. In distinfo set $(subdir)-VAR and then set VAR to $($(subdir)-VAR). * Makeconfig (rpath-link): New variable; add $(elfobjdir). (default-rpath): Use it. (built-program-cmd): Use it in LD_LIBRARY_PATH. * Makeconfig (sysdep-configures): Prepend $(sysdep_dir) to names tried. * sysdeps/unix/Dist: Add make-syscalls.sh. * misc/Makefile (headers): Add sys/swap.h. * posix/unistd.h: Remove decls for swapon, swapoff. * sysdeps/generic/sys/swap.h: New file. * sysdeps/unix/sysv/linux/sys/swap.h: New file. * sysdeps/unix/sysv/linux/gnu/types.h: Remove temporary hack #define of __kernel_fsid_t. It is correctly defines in <linux/types.h> now.
-rw-r--r--ChangeLog53
-rw-r--r--Makeconfig21
-rw-r--r--Makerules15
-rw-r--r--elf/Makefile2
-rw-r--r--elf/dl-close.c8
-rw-r--r--elf/dl-debug.c56
-rw-r--r--elf/dl-init.c5
-rw-r--r--elf/dl-lookup.c3
-rw-r--r--elf/dl-open.c15
-rw-r--r--elf/link.h10
-rw-r--r--elf/rtld.c34
-rw-r--r--misc/Makefile2
-rw-r--r--posix/unistd.h7
-rw-r--r--sysdeps/generic/sys/swap.h33
-rw-r--r--sysdeps/unix/Dist1
-rw-r--r--sysdeps/unix/sysv/linux/gnu/types.h1
-rw-r--r--sysdeps/unix/sysv/linux/sys/swap.h37
17 files changed, 256 insertions, 47 deletions
diff --git a/ChangeLog b/ChangeLog
index be4fe22..78a3ea7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,56 @@
+Thu Jun 13 00:02:25 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * elf/dl-lookup.c (_dl_lookup_symbol): If no value and *REF is
+ null, consider it a strong reference and give the error.
+
+Wed Jun 12 15:52:46 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+
+ * elf/dl-open.c (_dl_open): Correctly terminate relocating loop
+ after relocating NEW when it's the only new object.
+
+ * elf/dl-init.c (_dl_init_next): When out of initializers, set
+ _r_debug.r_state to RT_CONSISTENT and call _dl_debug_state just
+ before return.
+
+ * elf/rtld.c (dl_main): Move _dl_debug_initialize call after
+ relocation. Call it unconditionally and only fill in DT_DEBUG
+ if it's present. Then call _dl_debug_state with r_state RT_ADD
+ before running initializers.
+
+ * elf/dl-open.c (_dl_open): Call _dl_debug_initialize and then call
+ _dl_debug_state with r_state RT_ADD before running initializers
+ * elf/dl-close.c (_dl_close): Call _dl_debug_state with r_state
+ RT_DELETE before running finalizers and with RT_CONSISTENT just
+ before return.
+
+ * elf/Makefile (dl-routines): Add dl-debug.
+ * elf/dl-debug.c: New file.
+ * elf/rtld.c (_dl_r_debug): Rename to _r_debug and move to dl-debug.c.
+ (_dl_r_debug_state): Rename to _dl_debug_state and likewise move.
+ (dl_main): Use _dl_debug_initialize.
+ * elf/link.h: Fix name to _dl_debug_state in decl.
+ (_dl_debug_initialize): Declare new function from dl-debug.c.
+ (_r_debug): Declare it.
+
+ * Makerules (distinfo-vars): Add install-{lib,data,bin,sbin,others}.
+ In distinfo set $(subdir)-VAR and then set VAR to $($(subdir)-VAR).
+
+ * Makeconfig (rpath-link): New variable; add $(elfobjdir).
+ (default-rpath): Use it.
+ (built-program-cmd): Use it in LD_LIBRARY_PATH.
+
+ * Makeconfig (sysdep-configures): Prepend $(sysdep_dir) to names tried.
+
+ * sysdeps/unix/Dist: Add make-syscalls.sh.
+
+ * misc/Makefile (headers): Add sys/swap.h.
+ * posix/unistd.h: Remove decls for swapon, swapoff.
+ * sysdeps/generic/sys/swap.h: New file.
+ * sysdeps/unix/sysv/linux/sys/swap.h: New file.
+
+ * sysdeps/unix/sysv/linux/gnu/types.h: Remove temporary hack #define
+ of __kernel_fsid_t. It is correctly defines in <linux/types.h> now.
+
Tue Jun 11 23:23:30 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* Makerules (LDFLAGS-c.so): Use __libc_main instead of
diff --git a/Makeconfig b/Makeconfig
index 0bb64bc..1d53458 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -88,11 +88,12 @@ $(common-objpfx)config.make: $(common-objpfx)config.status $(..)config.h.in
# Find all the sysdeps configure fragments, to make sure we re-run
# configure when any of them changes.
-sysdep-configures = $(foreach dir,$(config-sysdirs),\
- $(patsubst %.in,%,\
- $(firstword $(wildcard \
- $(dir)/configure \
- $(dir)/configure.in))))
+sysdep-configures = \
+ $(foreach dir,$(config-sysdirs),\
+ $(patsubst %.in,%,\
+ $(firstword $(wildcard \
+ $(sysdep_dir)/$(dir)/configure \
+ $(sysdep_dir)/$(dir)/configure.in))))
# Force the user to configure before making.
$(common-objpfx)config.status: $(..)configure $(sysdep-configures)
@@ -312,7 +313,7 @@ ifeq (yes,$(build-shared))
# We need the versioned name of libc.so in the deps of $(others) et al
# so that the symlink to libc.so is created before anything tries to
# run the linked programs.
-link-libc = -Wl,-rpath-link=$(common-objdir):$(elfobjdir) \
+link-libc = -Wl,-rpath-link=$(rpath-link) \
$(common-objpfx)libc.so$(libc.so-version) \
$(elfobjdir)/$(rtld-installed-name) \
$(common-objpfx)libc.a $(gnulib)
@@ -323,6 +324,8 @@ default-rpath = $(slibdir):$(libdir)
else
default-rpath = $(libdir)
endif
+# This is how to find at build-time things that will be installed there.
+rpath-link = $(common-objdir):$(elfobjdir)
else
link-libc = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
endif
@@ -356,9 +359,9 @@ built-program-cmd = $(built-program-file)
else
comma = ,
define built-program-cmd
-LD_LIBRARY_PATH=$(common-objdir)$(patsubst -Wl$(comma)-rpath-link=%,:%,\
- $(filter -Wl$(comma)-rpath-link=%,\
- $(sysdep-LDFLAGS))) \
+LD_LIBRARY_PATH=$(rpath-link)$(patsubst -Wl$(comma)-rpath-link=%,:%,\
+ $(filter -Wl$(comma)-rpath-link=%,\
+ $(sysdep-LDFLAGS))) \
$(elf-objpfx)ld.so $(built-program-file)
endef
endif
diff --git a/Makerules b/Makerules
index 412b217..4ea38ed 100644
--- a/Makerules
+++ b/Makerules
@@ -420,10 +420,15 @@ endif
define o-iterator-doit
$(common-objpfx)$(patsubst %,$(libtype$o),c)($(ar-symtab-name)): \
$(common-objpfx)$(patsubst %,$(libtype$o),c)(\
- $(patsubst $(objpfx)%,%,$(o-objects))) \
- $(filter subdir_lib,$(firstword $(subdir) subdir_lib)); \
+ $(patsubst $(objpfx)%,%,$(o-objects))) $(subdirs-stamp-o); \
$$(RANLIB) $$(common-objpfx)$$(patsubst %,$$(libtype$o),c)
endef
+ifndef subdir
+subdirs-stamps := $(foreach d,$(subdirs),\
+ $(firstword $(objdir) $(subdir))/stamp%-$d)
+subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
+$(subdirs-stamps): subdir_lib;
+endif
object-suffixes-left = $(object-suffixes)
include $(o-iterator)
@@ -810,8 +815,10 @@ define distinfo-vars
rm -f $@.new
$(foreach var,subdir subdir-dirs sources elided-routines sysdep_routines \
headers sysdep_headers distribute dont_distribute generated \
- others tests extra-libs $(extra-libs:%=%-routines),
-echo >> $@.new '$(var) := $($(var))')
+ others tests extra-libs $(extra-libs:%=%-routines) \
+ $(addprefix install-,lib data bin sbin others),
+echo >> $@.new '$(subdir)-$(var) := $($(var))'
+echo >> $@.new '$(var) = $$($(subdir)-$(var))')
endef
ifneq (,$(strip $(gpl2lgpl)))
diff --git a/elf/Makefile b/elf/Makefile
index 07ffbd8..be7604d 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -26,7 +26,7 @@ routines = $(dl-routines) dl-open dl-close dl-symbol dl-support
# The core dynamic linking functions are in libc for the static and
# profiled libraries.
dl-routines = $(addprefix dl-,load lookup object reloc deps \
- runtime error init fini)
+ runtime error init fini debug)
# But they are absent from the shared libc, because that code is in ld.so.
elide-routines.so = $(dl-routines) dl-support
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 70d7ab4..184d382 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -41,6 +41,10 @@ _dl_close (struct link_map *map)
/* There are still references to this object. Do nothing more. */
return;
+ /* Notify the debugger we are about to remove some loaded objects. */
+ _r_debug.r_state = RT_DELETE;
+ _dl_debug_state ();
+
list = map->l_searchlist;
/* The search list contains a counted reference to each object it
@@ -105,4 +109,8 @@ _dl_close (struct link_map *map)
}
free (list);
+
+ /* Notify the debugger those objects are finalized and gone. */
+ _r_debug.r_state = RT_CONSISTENT;
+ _dl_debug_state ();
}
diff --git a/elf/dl-debug.c b/elf/dl-debug.c
new file mode 100644
index 0000000..861e001
--- /dev/null
+++ b/elf/dl-debug.c
@@ -0,0 +1,56 @@
+/* Communicate dynamic linker state to the debugger at runtime.
+Copyright (C) 1996 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
+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., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <link.h>
+
+/* This structure communicates dl state to the debugger. The debugger
+ normally finds it via the DT_DEBUG entry in the dynamic section, but in
+ a statically-linked program there is no dynamic section for the debugger
+ to examine and it looks for this particular symbol name. */
+struct r_debug _r_debug;
+
+
+/* Initialize _r_debug if it has not already been done. The argument is
+ the run-time load address of the dynamic linker, to be put in
+ _r_debug.r_ldbase. Returns the address of _r_debug. */
+
+struct r_debug *
+_dl_debug_initialize (ElfW(Addr) ldbase)
+{
+ if (_r_debug.r_brk == 0)
+ {
+ /* Tell the debugger where to find the map of loaded objects. */
+ _r_debug.r_version = 1 /* R_DEBUG_VERSION XXX */;
+ _r_debug.r_ldbase = _dl_rtld_map.l_addr; /* Record our load address. */
+ _r_debug.r_map = _dl_loaded;
+ _r_debug.r_brk = (ElfW(Addr)) &_dl_debug_state;
+ }
+
+ return &_r_debug;
+}
+
+
+/* This function exists solely to have a breakpoint set on it by the
+ debugger. The debugger is supposed to find this function's address by
+ examining the r_brk member of struct r_debug, but GDB 4.15 in fact looks
+ for this particular symbol name in the PT_INTERP file. */
+void
+_dl_debug_state (void)
+{
+}
diff --git a/elf/dl-init.c b/elf/dl-init.c
index 66ef83e..6259c35 100644
--- a/elf/dl-init.c
+++ b/elf/dl-init.c
@@ -65,5 +65,10 @@ _dl_init_next (struct link_map *map)
l->l_init_called = 1;
}
+
+ /* Notify the debugger all new objects are now ready to go. */
+ _r_debug.r_state = RT_CONSISTENT;
+ _dl_debug_state ();
+
return 0;
}
diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c
index bbccbc0..7ceffa2 100644
--- a/elf/dl-lookup.c
+++ b/elf/dl-lookup.c
@@ -129,7 +129,8 @@ _dl_lookup_symbol (const char *undef_name, const ElfW(Sym) **ref,
}
}
- if (weak_value.s == NULL && ELFW(ST_BIND) ((*ref)->st_info) != STB_WEAK)
+ if (weak_value.s == NULL &&
+ !*ref || ELFW(ST_BIND) ((*ref)->st_info) != STB_WEAK)
{
/* We could find no value for a strong reference. */
const char msg[] = "undefined symbol: ";
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 9389303..373d32d 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -29,6 +29,7 @@ _dl_open (struct link_map *parent, const char *file, int mode)
{
struct link_map *new, *l;
ElfW(Addr) init;
+ struct r_debug *r;
/* Load the named object. */
@@ -47,7 +48,7 @@ _dl_open (struct link_map *parent, const char *file, int mode)
l = new;
while (l->l_next)
l = l->l_next;
- do
+ while (1)
{
if (! l->l_relocated)
{
@@ -56,8 +57,10 @@ _dl_open (struct link_map *parent, const char *file, int mode)
*_dl_global_scope_end = NULL;
}
+ if (l == new)
+ break;
l = l->l_prev;
- } while (l != new);
+ }
new->l_global = (mode & RTLD_GLOBAL);
if (new->l_global)
@@ -108,6 +111,14 @@ _dl_open (struct link_map *parent, const char *file, int mode)
}
}
+
+ /* Notify the debugger we have added some objects. We need to call
+ _dl_debug_initialize in a static program in case dynamic linking has
+ not been used before. */
+ r = _dl_debug_initialize (0);
+ r->r_state = RT_ADD;
+ _dl_debug_state ();
+
/* Run the initializer functions of new objects. */
while (init = _dl_init_next (new))
(*(void (*) (void)) init) ();
diff --git a/elf/link.h b/elf/link.h
index 6910445..f43ec41 100644
--- a/elf/link.h
+++ b/elf/link.h
@@ -62,6 +62,9 @@ struct r_debug
ElfW(Addr) r_ldbase; /* Base address the linker is loaded at. */
};
+/* This is the instance of that structure used by the dynamic linker. */
+extern struct r_debug _r_debug;
+
/* This symbol refers to the "dynamic structure" in the `.dynamic' section
of whatever module refers to `_DYNAMIC'. So, to find its own
`struct r_debug', a program could do:
@@ -291,7 +294,12 @@ extern void _dl_fini (void);
any shared object mappings. The `r_state' member of `struct r_debug'
says what change is taking place. This function's address is
the value of the `r_brk' member. */
-extern void _dl_r_debug_state (void);
+extern void _dl_debug_state (void);
+
+/* Initialize `struct r_debug' if it has not already been done. The
+ argument is the run-time load address of the dynamic linker, to be put
+ in the `r_ldbase' member. Returns the address of the structure. */
+extern struct r_debug *_dl_debug_initialize (ElfW(Addr) ldbase);
#endif /* link.h */
diff --git a/elf/rtld.c b/elf/rtld.c
index c9ddfb5..7befc0a 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -46,8 +46,6 @@ int _dl_argc;
char **_dl_argv;
const char *_dl_rpath;
-struct r_debug _dl_r_debug;
-
static void dl_main (const ElfW(Phdr) *phdr,
ElfW(Half) phent,
ElfW(Addr) *user_entry);
@@ -229,12 +227,6 @@ of this helper program; chances are you did not intend to run this program.\n",
/* Set up our cache of pointers into the hash table. */
_dl_setup_hash (l);
- if (l->l_info[DT_DEBUG])
- /* There is a DT_DEBUG entry in the dynamic section. Fill it in
- with the run-time address of the r_debug structure, which we
- will set up later to communicate with the debugger. */
- l->l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) &_dl_r_debug;
-
/* Put the link_map for ourselves on the chain so it can be found by
name. */
_dl_rtld_map.l_name = (char *) _dl_rtld_map.l_libname = interpreter_name;
@@ -343,11 +335,20 @@ of this helper program; chances are you did not intend to run this program.\n",
_dl_relocate_object (&_dl_rtld_map, &_dl_default_scope[2], 0);
}
- /* Tell the debugger where to find the map of loaded objects. */
- _dl_r_debug.r_version = 1 /* R_DEBUG_VERSION XXX */;
- _dl_r_debug.r_ldbase = _dl_rtld_map.l_addr; /* Record our load address. */
- _dl_r_debug.r_map = _dl_loaded;
- _dl_r_debug.r_brk = (ElfW(Addr)) &_dl_r_debug_state;
+ {
+ /* Initialize _r_debug. */
+ struct r_debug *r = _dl_debug_initialize (_dl_rtld_map.l_addr);
+
+ l = _dl_loaded;
+ if (l->l_info[DT_DEBUG])
+ /* There is a DT_DEBUG entry in the dynamic section. Fill it in
+ with the run-time address of the r_debug structure */
+ l->l_info[DT_DEBUG]->d_un.d_ptr = (ElfW(Addr)) r;
+
+ /* Notify the debugger that all objects are now mapped in. */
+ r->r_state = RT_ADD;
+ _dl_debug_state ();
+ }
if (_dl_rtld_map.l_info[DT_INIT])
{
@@ -365,10 +366,3 @@ of this helper program; chances are you did not intend to run this program.\n",
/* Once we return, _dl_sysdep_start will invoke
the DT_INIT functions and then *USER_ENTRY. */
}
-
-/* This function exists solely to have a breakpoint set on it by the
- debugger. */
-void
-_dl_r_debug_state (void)
-{
-}
diff --git a/misc/Makefile b/misc/Makefile
index 741b04c..3dff4ae 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -27,7 +27,7 @@ headers := sys/uio.h iovec.h sys/ioctl.h ioctls.h ioctl-types.h \
a.out.h nlist.h stab.h stab.def sgtty.h sys/dir.h sys/cdefs.h \
ttyent.h syslog.h sys/syslog.h paths.h sys/reboot.h \
sys/mman.h sys/param.h fstab.h mntent.h search.h err.h error.h\
- sys/queue.h sysexits.h syscall.h sys/syscall.h
+ sys/queue.h sysexits.h syscall.h sys/syscall.h sys/swap.h
routines := brk sbrk sstk ioctl \
readv writev \
diff --git a/posix/unistd.h b/posix/unistd.h
index 72ecd96..8c8a488 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -662,13 +662,6 @@ extern int acct __P ((__const char *__name));
This call is restricted to the super-user. */
extern int chroot __P ((__const char *__path));
-/* Make the block special device PATH available to the system for swapping.
- This call is restricted to the super-user. */
-extern int swapon __P ((__const char *__path));
-
-/* Stop using block special device PATH for swapping. */
-extern int swapoff __P ((__const char *__path));
-
/* Successive calls return the shells listed in `/etc/shells'. */
extern char *getusershell __P ((void));
diff --git a/sysdeps/generic/sys/swap.h b/sysdeps/generic/sys/swap.h
new file mode 100644
index 0000000..17003a8
--- /dev/null
+++ b/sysdeps/generic/sys/swap.h
@@ -0,0 +1,33 @@
+/* Calls to enable and disable swapping on specified locations. Unix version.
+Copyright (C) 1996 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
+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. */
+
+#ifndef __SYS_SWAP_H
+
+#define __SYS_SWAP_H 1
+#include <features.h>
+
+
+/* Make the block special device PATH available to the system for swapping.
+ This call is restricted to the super-user. */
+extern int swapon __P ((__const char *__path));
+
+/* Stop using block special device PATH for swapping. */
+extern int swapoff __P ((__const char *__path));
+
+#endif /* sys/swap.h */
diff --git a/sysdeps/unix/Dist b/sysdeps/unix/Dist
index f3b02e6..9f4ecc4 100644
--- a/sysdeps/unix/Dist
+++ b/sysdeps/unix/Dist
@@ -3,3 +3,4 @@ ioctls-tmpl.c ioctls.awk snarf-ioctls
make_errlist.c
mk-local_lim.c
s-proto.S
+make-syscalls.sh
diff --git a/sysdeps/unix/sysv/linux/gnu/types.h b/sysdeps/unix/sysv/linux/gnu/types.h
index 719d136..402df2a 100644
--- a/sysdeps/unix/sysv/linux/gnu/types.h
+++ b/sysdeps/unix/sysv/linux/gnu/types.h
@@ -54,7 +54,6 @@ typedef __kernel_nlink_t __nlink_t; /* Type of file link counts. */
typedef __kernel_off_t __off_t; /* Type of file sizes and offsets. */
typedef __kernel_pid_t __pid_t; /* Type of process identifications. */
typedef __kernel_ssize_t __ssize_t; /* Type of a byte count, or error. */
-#define __kernel_fsid_t long long /* XXX */
typedef __kernel_fsid_t __fsid_t; /* Type of file system IDs. */
/* Everythin' else. */
diff --git a/sysdeps/unix/sysv/linux/sys/swap.h b/sysdeps/unix/sysv/linux/sys/swap.h
new file mode 100644
index 0000000..f454c8c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/swap.h
@@ -0,0 +1,37 @@
+/* Calls to enable and disable swapping on specified locations. Linux version.
+Copyright (C) 1996 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
+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. */
+
+#ifndef __SYS_SWAP_H
+
+#define __SYS_SWAP_H 1
+#include <features.h>
+
+/* Get constants from kernel headers. */
+#include <linux/swap.h>
+
+
+/* Make the block special device PATH available to the system for swapping.
+ This call is restricted to the super-user. */
+extern int swapon __P ((__const char *__path, int __flags));
+
+/* Stop using block special device PATH for swapping. */
+extern int swapoff __P ((__const char *__path));
+
+
+#endif /* sys/swap.h */