-
Notifications
You must be signed in to change notification settings - Fork 1
/
glibc-rh593686.patch
179 lines (172 loc) · 5.09 KB
/
glibc-rh593686.patch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
2010-05-26 Andreas Schwab <[email protected]>
* elf/Makefile: Add rules to build and run unload8 test.
* elf/unload8.c: New file.
* elf/unload8mod1.c: New file.
* elf/unload8mod1x.c: New file.
* elf/unload8mod2.c: New file.
* elf/unload8mod3.c: New file.
* elf/dl-close.c (_dl_close_worker): Reset private search list if
it wasn't used.
Index: glibc-2.12-2-gc4ccff1/elf/Makefile
===================================================================
--- glibc-2.12-2-gc4ccff1.orig/elf/Makefile
+++ glibc-2.12-2-gc4ccff1/elf/Makefile
@@ -89,6 +89,7 @@ distribute := rtld-Rules \
unload4mod1.c unload4mod2.c unload4mod3.c unload4mod4.c \
unload6mod1.c unload6mod2.c unload6mod3.c \
unload7mod1.c unload7mod2.c \
+ unload8mod1.c unload8mod1x.c unload8mod2.c unload8mod3.c \
tst-audit1.c tst-audit2.c tst-audit3.c tst-audit4.c \
tst-auditmod1.c tst-auditmod3a.c tst-auditmod3b.c \
tst-auditmod4a.c tst-auditmod4b.c \
@@ -196,7 +197,7 @@ tests += loadtest restest1 preloadtest l
tst-align tst-align2 $(tests-execstack-$(have-z-execstack)) \
tst-dlmodcount tst-dlopenrpath tst-deep1 \
tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
- unload3 unload4 unload5 unload6 unload7 tst-global1 order2 \
+ unload3 unload4 unload5 unload6 unload7 unload8 tst-global1 order2 \
tst-audit1 tst-audit2 \
tst-stackguard1 tst-addr1 tst-thrlock \
tst-unique1 tst-unique2
@@ -247,6 +248,7 @@ modules-names = testobj1 testobj2 testob
unload4mod1 unload4mod2 unload4mod3 unload4mod4 \
unload6mod1 unload6mod2 unload6mod3 \
unload7mod1 unload7mod2 \
+ unload8mod1 unload8mod1x unload8mod2 unload8mod3 \
order2mod1 order2mod2 order2mod3 order2mod4 \
tst-unique1mod1 tst-unique1mod2 \
tst-unique2mod1 tst-unique2mod2
@@ -522,6 +524,9 @@ $(objpfx)unload6mod2.so: $(libdl)
$(objpfx)unload6mod3.so: $(libdl)
$(objpfx)unload7mod1.so: $(libdl)
$(objpfx)unload7mod2.so: $(objpfx)unload7mod1.so
+$(objpfx)unload8mod1.so: $(objpfx)unload8mod2.so
+$(objpfx)unload8mod2.so: $(objpfx)unload8mod3.so
+$(objpfx)unload8mod3.so: $(libdl)
LDFLAGS-tst-tlsmod5.so = -nostdlib
LDFLAGS-tst-tlsmod6.so = -nostdlib
@@ -823,6 +828,9 @@ $(objpfx)unload7: $(libdl)
$(objpfx)unload7.out: $(objpfx)unload7mod1.so $(objpfx)unload7mod2.so
unload7-ENV = MALLOC_PERTURB_=85
+$(objpfx)unload8: $(libdl)
+$(objpfx)unload8.out: $(objpfx)unload8mod1.so $(objpfx)unload8mod1x.so
+
ifdef libdl
$(objpfx)tst-tls9-static: $(common-objpfx)dlfcn/libdl.a
$(objpfx)tst-tls9-static.out: $(objpfx)tst-tlsmod5.so $(objpfx)tst-tlsmod6.so
Index: glibc-2.12-2-gc4ccff1/elf/dl-close.c
===================================================================
--- glibc-2.12-2-gc4ccff1.orig/elf/dl-close.c
+++ glibc-2.12-2-gc4ccff1/elf/dl-close.c
@@ -421,6 +421,13 @@ _dl_close_worker (struct link_map *map)
imap->l_scope_max = new_size;
}
+ else if (new_list != NULL)
+ {
+ /* We didn't change the scope array, so reset the search
+ list. */
+ imap->l_searchlist.r_list = NULL;
+ imap->l_searchlist.r_nlist = 0;
+ }
/* The loader is gone, so mark the object as not having one.
Note: l_idx != IDX_STILL_USED -> object will be removed. */
Index: glibc-2.12-2-gc4ccff1/elf/unload8.c
===================================================================
--- /dev/null
+++ glibc-2.12-2-gc4ccff1/elf/unload8.c
@@ -0,0 +1,33 @@
+#include <dlfcn.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+ void *h = dlopen ("$ORIGIN/unload8mod1.so", RTLD_LAZY);
+ if (h == NULL)
+ {
+ puts ("dlopen unload8mod1.so failed");
+ return 1;
+ }
+
+ void *h2 = dlopen ("$ORIGIN/unload8mod1x.so", RTLD_LAZY);
+ if (h2 == NULL)
+ {
+ puts ("dlopen unload8mod1x.so failed");
+ return 1;
+ }
+ dlclose (h2);
+
+ int (*mod1) (void) = dlsym (h, "mod1");
+ if (mod1 == NULL)
+ {
+ puts ("dlsym failed");
+ return 1;
+ }
+
+ mod1 ();
+ dlclose (h);
+
+ return 0;
+}
Index: glibc-2.12-2-gc4ccff1/elf/unload8mod1.c
===================================================================
--- /dev/null
+++ glibc-2.12-2-gc4ccff1/elf/unload8mod1.c
@@ -0,0 +1,7 @@
+extern void mod2 (void);
+
+void
+mod1 (void)
+{
+ mod2 ();
+}
Index: glibc-2.12-2-gc4ccff1/elf/unload8mod1x.c
===================================================================
--- /dev/null
+++ glibc-2.12-2-gc4ccff1/elf/unload8mod1x.c
@@ -0,0 +1 @@
+int mod1x;
Index: glibc-2.12-2-gc4ccff1/elf/unload8mod2.c
===================================================================
--- /dev/null
+++ glibc-2.12-2-gc4ccff1/elf/unload8mod2.c
@@ -0,0 +1,7 @@
+extern void mod3 (void);
+
+void
+mod2 (void)
+{
+ mod3 ();
+}
Index: glibc-2.12-2-gc4ccff1/elf/unload8mod3.c
===================================================================
--- /dev/null
+++ glibc-2.12-2-gc4ccff1/elf/unload8mod3.c
@@ -0,0 +1,27 @@
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+mod3_fini2 (void)
+{
+}
+
+void
+mod3_fini (void)
+{
+ mod3_fini2 ();
+}
+
+void
+mod3 (void)
+{
+ void *h = dlopen ("$ORIGIN/unload8mod2.so", RTLD_LAZY);
+ if (h == NULL)
+ {
+ puts ("dlopen unload8mod2.so failed");
+ exit (1);
+ }
+
+ atexit (mod3_fini);
+}