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authorUlrich Drepper <drepper@redhat.com>2005-01-09 08:29:25 +0000
committerUlrich Drepper <drepper@redhat.com>2005-01-09 08:29:25 +0000
commit29f976542bf6589ebad2ee60b855e01ad3c33016 (patch)
tree6e85fd0dc26fca9984a42fb603efa41403b20b35
parent4e2d549137c8e9990f446fee58ad78a1c6495fa9 (diff)
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Update.
2005-01-09 Ulrich Drepper <drepper@redhat.com> * elf/dl-debug.c (_dl_debug_initialize): Take extra parameter and use it to select the r_debug structure for that namespace. * elf/dl-close.c (_dl_close): Adjust call to _dl_debug_initialize. * elf/dl-load.c (_dl_map_object_from_fd): Likewise. * elf/dl-open.c (_dl_open): Likewise. * elf/rtld.c (dl_main): Likewise. * sysdeps/generic/ldsodefs.h (struct link_namespaces): Add _ns_debug member. (_dl_debug_initialize): Add new parameter in declaration. * elf/dl-close.c (_dl_close): Make sure auditing callbacks are not called for the auditing objects themselves. * elf/dl-load.c (_dl_map_object_from_fd): Likewise.
-rw-r--r--ChangeLog16
-rw-r--r--elf/dl-close.c13
-rw-r--r--elf/dl-debug.c25
-rw-r--r--elf/dl-load.c7
-rw-r--r--elf/dl-open.c18
-rw-r--r--elf/rtld.c5
-rw-r--r--sysdeps/generic/ldsodefs.h4
7 files changed, 58 insertions, 30 deletions
diff --git a/ChangeLog b/ChangeLog
index 562dd67..bd563f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+2005-01-09 Ulrich Drepper <drepper@redhat.com>
+
+ * elf/dl-debug.c (_dl_debug_initialize): Take extra parameter and
+ use it to select the r_debug structure for that namespace.
+ * elf/dl-close.c (_dl_close): Adjust call to _dl_debug_initialize.
+ * elf/dl-load.c (_dl_map_object_from_fd): Likewise.
+ * elf/dl-open.c (_dl_open): Likewise.
+ * elf/rtld.c (dl_main): Likewise.
+ * sysdeps/generic/ldsodefs.h (struct link_namespaces): Add _ns_debug
+ member.
+ (_dl_debug_initialize): Add new parameter in declaration.
+
+ * elf/dl-close.c (_dl_close): Make sure auditing callbacks are not
+ called for the auditing objects themselves.
+ * elf/dl-load.c (_dl_map_object_from_fd): Likewise.
+
2005-01-07 Ulrich Drepper <drepper@redhat.com>
* sysdeps/powerpc/powerpc64/dl-machine.h
diff --git a/elf/dl-close.c b/elf/dl-close.c
index cf926ae..eb5e805 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -1,5 +1,5 @@
/* Close a shared object opened by `_dl_open'.
- Copyright (C) 1996-2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1996-2002, 2003, 2004, 2005 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
@@ -266,6 +266,9 @@ _dl_close (void *_map)
assert (new_opencount[0] == 0);
/* Call all termination functions at once. */
+#ifdef SHARED
+ bool do_audit = GLRO(dl_naudit) > 0 && !GL(dl_ns)[ns]._ns_loaded->l_auditing;
+#endif
for (i = 0; list[i] != NULL; ++i)
{
struct link_map *imap = list[i];
@@ -306,7 +309,7 @@ _dl_close (void *_map)
#ifdef SHARED
/* Auditing checkpoint: we have a new object. */
- if (__builtin_expect (GLRO(dl_naudit) > 0, 0))
+ if (__builtin_expect (do_audit, 0))
{
struct audit_ifaces *afct = GLRO(dl_audit);
for (unsigned int cnt = 0; cnt < GLRO(dl_naudit); ++cnt)
@@ -388,7 +391,7 @@ _dl_close (void *_map)
#ifdef SHARED
/* Auditing checkpoint: we will start deleting objects. */
- if (__builtin_expect (GLRO(dl_naudit) > 0, 0))
+ if (__builtin_expect (do_audit, 0))
{
struct link_map *head = GL(dl_ns)[ns]._ns_loaded;
struct audit_ifaces *afct = GLRO(dl_audit);
@@ -407,7 +410,7 @@ _dl_close (void *_map)
#endif
/* Notify the debugger we are about to remove some loaded objects. */
- struct r_debug *r = _dl_debug_initialize (0);
+ struct r_debug *r = _dl_debug_initialize (0, ns);
r->r_state = RT_DELETE;
_dl_debug_state ();
@@ -629,7 +632,7 @@ _dl_close (void *_map)
#ifdef SHARED
/* Auditing checkpoint: we have deleted all objects. */
- if (__builtin_expect (GLRO(dl_naudit) > 0, 0))
+ if (__builtin_expect (do_audit, 0))
{
struct link_map *head = GL(dl_ns)[ns]._ns_loaded;
/* Do not call the functions for any auditing object. */
diff --git a/elf/dl-debug.c b/elf/dl-debug.c
index 3923472..bc7d793 100644
--- a/elf/dl-debug.c
+++ b/elf/dl-debug.c
@@ -1,5 +1,5 @@
/* Communicate dynamic linker state to the debugger at runtime.
- Copyright (C) 1996, 1998, 2000, 2002, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1998,2000,2002,2004,2005 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
@@ -32,20 +32,25 @@ struct r_debug _r_debug;
struct r_debug *
internal_function
-_dl_debug_initialize (ElfW(Addr) ldbase)
+_dl_debug_initialize (ElfW(Addr) ldbase, Lmid_t ns)
{
- if (_r_debug.r_brk == 0 || ldbase != 0)
+ struct r_debug *r;
+
+ if (ns == LM_ID_BASE)
+ r = &_r_debug;
+ else
+ r = &GL(dl_ns)[ns]._ns_debug;
+
+ if (r->r_brk == 0 || ldbase != 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 = ldbase;
- // XXX This is problematic. It means we cannot tell the debugger
- // XXX about namespaces other than the main one.
- _r_debug.r_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
- _r_debug.r_brk = (ElfW(Addr)) &_dl_debug_state;
+ r->r_version = 1 /* R_DEBUG_VERSION XXX */;
+ r->r_ldbase = ldbase ?: _r_debug.r_ldbase;
+ r->r_map = GL(dl_ns)[ns]._ns_loaded;
+ r->r_brk = (ElfW(Addr)) &_dl_debug_state;
}
- return &_r_debug;
+ return r;
}
diff --git a/elf/dl-load.c b/elf/dl-load.c
index 7f11b62..363f77b 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -1,5 +1,5 @@
/* Map in a shared object's segments from the file.
- Copyright (C) 1995-2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1995-2002, 2003, 2004, 2005 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
@@ -827,7 +827,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
/* Initialize to keep the compiler happy. */
const char *errstring = NULL;
int errval = 0;
- struct r_debug *r = _dl_debug_initialize (0);
+ struct r_debug *r = _dl_debug_initialize (0, nsid);
bool make_consistent = false;
/* Get file information. */
@@ -1467,7 +1467,8 @@ cannot enable executable stack as shared object requires");
#ifdef SHARED
/* Auditing checkpoint: we have a new object. */
- if (__builtin_expect (GLRO(dl_naudit) > 0, 0))
+ if (__builtin_expect (GLRO(dl_naudit) > 0, 0)
+ && !GL(dl_ns)[l->l_ns]._ns_loaded->l_auditing)
{
struct audit_ifaces *afct = GLRO(dl_audit);
for (unsigned int cnt = 0; cnt < GLRO(dl_naudit); ++cnt)
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 9da7523..c2cf1db 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -1,5 +1,5 @@
/* Load a shared object at runtime, relocate it, and run its initializer.
- Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1996-2004, 2005 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
@@ -174,8 +174,6 @@ dl_open_worker (void *a)
#endif
struct link_map *call_map = NULL;
- assert (_dl_debug_initialize (0)->r_state == RT_CONSISTENT);
-
/* Check whether _dl_open() has been called from a valid DSO. */
if (__check_caller (args->caller_dl_open,
allow_libc|allow_libdl|allow_ldso) != 0)
@@ -220,6 +218,8 @@ dl_open_worker (void *a)
}
}
+ assert (_dl_debug_initialize (0, args->nsid)->r_state == RT_CONSISTENT);
+
/* Maybe we have to expand a DST. */
if (__builtin_expect (dst != NULL, 0))
{
@@ -298,7 +298,7 @@ dl_open_worker (void *a)
/* Increment just the reference counter of the object. */
++new->l_opencount;
- assert (_dl_debug_initialize (0)->r_state == RT_CONSISTENT);
+ assert (_dl_debug_initialize (0, args->nsid)->r_state == RT_CONSISTENT);
return;
}
@@ -338,7 +338,7 @@ dl_open_worker (void *a)
#endif
/* Notify the debugger all new objects are now ready to go. */
- struct r_debug *r = _dl_debug_initialize (0);
+ struct r_debug *r = _dl_debug_initialize (0, args->nsid);
r->r_state = RT_CONSISTENT;
_dl_debug_state ();
@@ -525,8 +525,6 @@ _dl_open (const char *file, int mode, const void *caller_dlopen, Lmid_t nsid,
/* Make sure we are alone. */
__rtld_lock_lock_recursive (GL(dl_load_lock));
- assert (_dl_debug_initialize (0)->r_state == RT_CONSISTENT);
-
if (nsid == LM_ID_NEWLM)
{
/* Find a new namespace. */
@@ -542,6 +540,8 @@ _dl_open (const char *file, int mode, const void *caller_dlopen, Lmid_t nsid,
_dl_signal_error (EINVAL, file, NULL, N_("\
no more namespaces available for dlmopen()"));
}
+
+ _dl_debug_initialize (0, nsid)->r_state = RT_CONSISTENT;
}
/* Never allow loading a DSO in a namespace which is empty. Such
direct placements is only causing problems. Also don't allow
@@ -621,13 +621,13 @@ no more namespaces available for dlmopen()"));
if (errstring != INTUSE(_dl_out_of_memory))
free ((char *) errstring);
- assert (_dl_debug_initialize (0)->r_state == RT_CONSISTENT);
+ assert (_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT);
/* Reraise the error. */
_dl_signal_error (errcode, objname, NULL, local_errstring);
}
- assert (_dl_debug_initialize (0)->r_state == RT_CONSISTENT);
+ assert (_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT);
#ifndef SHARED
DL_STATIC_INIT (args.map);
diff --git a/elf/rtld.c b/elf/rtld.c
index c9ed64a..77903bf 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -1208,7 +1208,8 @@ ld.so does not support TLS, but program uses it!\n");
_dl_init_paths (library_path);
/* Initialize _r_debug. */
- struct r_debug *r = _dl_debug_initialize (GL(dl_rtld_map).l_addr);
+ struct r_debug *r = _dl_debug_initialize (GL(dl_rtld_map).l_addr,
+ LM_ID_BASE);
r->r_state = RT_CONSISTENT;
/* Put the link_map for ourselves on the chain so it can be found by
@@ -2257,7 +2258,7 @@ ERROR: ld.so: object '%s' from %s cannot be preloaded: ignored.\n",
/* Notify the debugger all new objects are now ready to go. We must re-get
the address since by now the variable might be in another object. */
- r = _dl_debug_initialize (0);
+ r = _dl_debug_initialize (0, LM_ID_BASE);
r->r_state = RT_CONSISTENT;
_dl_debug_state ();
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index 909f309..7364f32 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -296,6 +296,8 @@ struct rtld_global
allocated by rtld. Later it keeps the size of the map. It might be
reset if in _dl_close if the last global object is removed. */
size_t _ns_global_scope_alloc;
+ /* Keep track of changes to each namespace' list. */
+ struct r_debug _ns_debug;
} _dl_ns[DL_NNS];
/* During the program run we must not modify the global data of
@@ -844,7 +846,7 @@ rtld_hidden_proto (_dl_debug_state)
/* 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)
+extern struct r_debug *_dl_debug_initialize (ElfW(Addr) ldbase, Lmid_t ns)
internal_function;
/* Initialize the basic data structure for the search paths. */