glibc/glibc-rh179072.patch
2012-05-23 12:18:07 -06:00

159 lines
4.8 KiB
Diff

diff -Nrup c/elf/dl-close.c d/elf/dl-close.c
--- c/elf/dl-close.c 2012-05-21 00:08:02.410897531 -0600
+++ d/elf/dl-close.c 2012-05-21 00:08:40.874716006 -0600
@@ -31,6 +31,7 @@
#include <sys/mman.h>
#include <sysdep-cancel.h>
#include <tls.h>
+#include <stap-probe.h>
/* Type of the constructor functions. */
@@ -468,6 +469,7 @@ _dl_close_worker (struct link_map *map)
struct r_debug *r = _dl_debug_initialize (0, nsid);
r->r_state = RT_DELETE;
_dl_debug_state ();
+ LIBC_PROBE (rtld_unmap_start, 2, nsid, r);
if (unload_global)
{
@@ -737,6 +739,7 @@ _dl_close_worker (struct link_map *map)
/* Notify the debugger those objects are finalized and gone. */
r->r_state = RT_CONSISTENT;
_dl_debug_state ();
+ LIBC_PROBE (rtld_unmap_complete, 2, nsid, r);
/* Recheck if we need to retry, release the lock. */
out:
diff -Nrup c/elf/dl-load.c d/elf/dl-load.c
--- c/elf/dl-load.c 2012-05-21 00:08:02.219898432 -0600
+++ d/elf/dl-load.c 2012-05-21 00:08:40.876715997 -0600
@@ -35,6 +35,7 @@
#include <stackinfo.h>
#include <caller.h>
#include <sysdep.h>
+#include <stap-probe.h>
#include <dl-dst.h>
@@ -880,7 +881,7 @@ _dl_init_paths (const char *llp)
static void
__attribute__ ((noreturn, noinline))
lose (int code, int fd, const char *name, char *realname, struct link_map *l,
- const char *msg, struct r_debug *r)
+ const char *msg, struct r_debug *r, Lmid_t nsid)
{
/* The file might already be closed. */
if (fd != -1)
@@ -894,6 +895,7 @@ lose (int code, int fd, const char *name
{
r->r_state = RT_CONSISTENT;
_dl_debug_state ();
+ LIBC_PROBE (rtld_map_complete, 2, nsid, r);
}
_dl_signal_error (code, name, NULL, msg);
@@ -932,7 +934,7 @@ _dl_map_object_from_fd (const char *name
errval = errno;
call_lose:
lose (errval, fd, name, realname, l, errstring,
- make_consistent ? r : NULL);
+ make_consistent ? r : NULL, nsid);
}
/* Look again to see if the real name matched another already loaded. */
@@ -1039,6 +1041,7 @@ _dl_map_object_from_fd (const char *name
linking has not been used before. */
r->r_state = RT_ADD;
_dl_debug_state ();
+ LIBC_PROBE (rtld_map_start, 2, nsid, r);
make_consistent = true;
}
else
@@ -1734,7 +1737,7 @@ open_verify (const char *name, struct fi
name = strdupa (realname);
free (realname);
}
- lose (errval, fd, name, NULL, NULL, errstring, NULL);
+ lose (errval, fd, name, NULL, NULL, errstring, NULL, 0);
}
/* See whether the ELF header is what we expect. */
diff -Nrup c/elf/dl-open.c d/elf/dl-open.c
--- c/elf/dl-open.c 2012-05-20 19:47:38.000000000 -0600
+++ d/elf/dl-open.c 2012-05-21 00:11:29.229920776 -0600
@@ -32,6 +32,7 @@
#include <caller.h>
#include <sysdep-cancel.h>
#include <tls.h>
+#include <stap-probe.h>
#include <dl-dst.h>
@@ -291,6 +292,7 @@ dl_open_worker (void *a)
struct r_debug *r = _dl_debug_initialize (0, args->nsid);
r->r_state = RT_CONSISTENT;
_dl_debug_state ();
+ LIBC_PROBE (rtld_map_complete, 2, args->nsid, r);
/* Print scope information. */
if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_SCOPES, 0))
@@ -376,10 +378,19 @@ dl_open_worker (void *a)
}
}
+ int relocation_in_progress = 0;
+
for (size_t i = nmaps; i-- > 0; )
{
l = maps[i];
+ if (! relocation_in_progress)
+ {
+ /* Notify the debugger that relocations are about to happen. */
+ LIBC_PROBE (rtld_reloc_start, 2, args->nsid, r);
+ relocation_in_progress = 1;
+ }
+
#ifdef SHARED
if (__builtin_expect (GLRO(dl_profile) != NULL, 0))
{
@@ -544,6 +555,10 @@ cannot load any more object with static
}
}
+ /* Notify the debugger all new objects have been relocated. */
+ if (relocation_in_progress)
+ LIBC_PROBE (rtld_reloc_complete, 2, args->nsid, r);
+
/* Run the initializer functions of new objects. */
_dl_init (new, args->argc, args->argv, args->env);
diff -Nrup c/elf/rtld.c d/elf/rtld.c
--- c/elf/rtld.c 2012-05-21 00:08:02.415897505 -0600
+++ d/elf/rtld.c 2012-05-21 00:08:40.917715803 -0600
@@ -39,6 +39,7 @@
#include <dl-osinfo.h>
#include <dl-procinfo.h>
#include <tls.h>
+#include <stap-probe.h>
#include <stackinfo.h>
#include <assert.h>
@@ -1681,6 +1682,7 @@ ERROR: ld.so: object '%s' cannot be load
/* We start adding objects. */
r->r_state = RT_ADD;
_dl_debug_state ();
+ LIBC_PROBE (rtld_init_start, 2, LM_ID_BASE, r);
/* Auditing checkpoint: we are ready to signal that the initial map
is being constructed. */
@@ -2398,6 +2400,7 @@ ERROR: ld.so: object '%s' cannot be load
r = _dl_debug_initialize (0, LM_ID_BASE);
r->r_state = RT_CONSISTENT;
_dl_debug_state ();
+ LIBC_PROBE (rtld_init_complete, 2, LM_ID_BASE, r);
#ifndef MAP_COPY
/* We must munmap() the cache file. */