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-rw-r--r--ChangeLog15
-rw-r--r--elf/Makefile16
-rw-r--r--elf/loadtest.c17
-rw-r--r--elf/preloadtest.c19
-rw-r--r--elf/testobj1.c11
-rw-r--r--elf/testobj2.c11
-rw-r--r--elf/testobj3.c11
-rw-r--r--elf/testobj4.c22
-rw-r--r--elf/testobj5.c22
-rw-r--r--elf/testobj6.c17
10 files changed, 157 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog
index 86a8b7af38..4e9912194e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,18 @@
+1999-01-20 Ulrich Drepper <drepper@cygnus.com>
+
+ * elf/Makefile (tests): Add preloadtest. Add rules to build more test
+ modules and the preloadtest binary.
+ * elf/loadtest.c (TEST_ROUNDS): Increase to 1000.
+ (testobjs): Add more modules.
+ (tests): Add entries for new modules.
+ * elf/preloadtest.c: New file. Test for LD_PRELOAD.
+ * elf/testobj1.c: Add 'preload' function.
+ * elf/testobj2.c: Likewise.
+ * elf/testobj3.c: Likewise.
+ * elf/testobj4.c: New file.
+ * elf/testobj5.c: New file.
+ * elf/testobj6.c: New file.
+
1999-01-19 Ulrich Drepper <drepper@cygnus.com>
* elf/dl-object.c (_dl_new_object): Micro-optimization.
diff --git a/elf/Makefile b/elf/Makefile
index f6da5c47a0..c46c22933b 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -75,7 +75,7 @@ others += ldconfig
install-rootsbin += ldconfig
endif
-tests = loadtest restest1
+tests = loadtest restest1 preloadtest
include ../Rules
@@ -214,14 +214,20 @@ $(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
$(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
endef
-modules-names = testobj1 testobj2 testobj3 testobj1_1
+modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
+ testobj1_1
test-modules = $(addprefix $(objpfx),$(addsuffix .so,$(modules-names)))
generated += $(test-modules)
+LDLIBS-testobj1.so = -ldl
$(objpfx)testobj1_1.so: $(objpfx)testobj1.so
LDLIBS-testobj1_1.so = $(objpfx)testobj1.so
$(objpfx)testobj2.so: $(objpfx)testobj1.so
-LDLIBS-testobj2.so = $(objpfx)testobj1.so
+LDLIBS-testobj2.so = $(objpfx)testobj1.so -ldl
+LDLIBS-testobj3.so = -ldl
+LDLIBS-testobj4.so = -ldl
+LDLIBS-testobj5.so = -ldl
+LDLIBS-testobj6.so = -ldl
$(test-modules): $(objpfx)%.so: %.c
$(build-module)
@@ -235,6 +241,10 @@ $(objpfx)restest1: $(objpfx)libdl.so
LDFLAGS-restest1 = -rdynamic $(objpfx)testobj1.so $(objpfx)testobj1_1.so
$(objpfx)restest1.out: $(test-modules)
+
+$(objpfx)preloadtest.out: $(test-modules)
+LDFLAGS-preloadtest = -rdynamic $(objpfx)testobj6.so
+preloadtest-ENV = LD_PRELOAD=testobj1.so:testobj2.so:testobj3.so:testobj4.so:testobj5.so
# muwahaha
diff --git a/elf/loadtest.c b/elf/loadtest.c
index 209f420141..5b9e116987 100644
--- a/elf/loadtest.c
+++ b/elf/loadtest.c
@@ -7,7 +7,7 @@
/* How many load/unload operations do we do. */
-#define TEST_ROUNDS 100
+#define TEST_ROUNDS 1000
static struct
@@ -21,6 +21,9 @@ static struct
{ "testobj1.so", NULL },
{ "testobj2.so", NULL },
{ "testobj3.so", NULL },
+ { "testobj4.so", NULL },
+ { "testobj5.so", NULL },
+ { "testobj6.so", NULL },
};
#define NOBJS (sizeof (testobjs) / sizeof (testobjs[0]))
@@ -47,6 +50,18 @@ static const struct
{ "obj3func1", 2, RTLD_LAZY | RTLD_GLOBAL },
{ "obj3func1", 2, RTLD_NOW },
{ "obj3func2", 2, RTLD_NOW | RTLD_GLOBAL },
+ { "obj4func2", 3, RTLD_LAZY },
+ { "obj4func1", 3, RTLD_LAZY | RTLD_GLOBAL },
+ { "obj4func1", 3, RTLD_NOW },
+ { "obj4func2", 3, RTLD_NOW | RTLD_GLOBAL },
+ { "obj5func2", 4, RTLD_LAZY },
+ { "obj5func1", 4, RTLD_LAZY | RTLD_GLOBAL },
+ { "obj5func1", 4, RTLD_NOW },
+ { "obj5func2", 4, RTLD_NOW | RTLD_GLOBAL },
+ { "obj6func2", 5, RTLD_LAZY },
+ { "obj6func1", 5, RTLD_LAZY | RTLD_GLOBAL },
+ { "obj6func1", 5, RTLD_NOW },
+ { "obj6func2", 5, RTLD_NOW | RTLD_GLOBAL },
};
#define NTESTS (sizeof (tests) / sizeof (tests[0]))
diff --git a/elf/preloadtest.c b/elf/preloadtest.c
new file mode 100644
index 0000000000..ac27f67150
--- /dev/null
+++ b/elf/preloadtest.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+extern int preload (int);
+
+int
+main (void)
+{
+ int res = preload (42);
+
+ printf ("preload (42) = %d, %s\n", res, res == 92 ? "ok" : "wrong");
+
+ return res != 92;
+}
+
+int
+foo (int a)
+{
+ return a;
+}
diff --git a/elf/testobj1.c b/elf/testobj1.c
index 9f64d675c4..b88a8d0ce6 100644
--- a/elf/testobj1.c
+++ b/elf/testobj1.c
@@ -1,3 +1,5 @@
+#include <dlfcn.h>
+
int
obj1func1 (int a __attribute__ ((unused)))
{
@@ -9,3 +11,12 @@ obj1func2 (int a)
{
return foo (a) + 10;
}
+
+int
+preload (int a)
+{
+ int (*fp) (int) = dlsym (RTLD_NEXT, "preload");
+ if (fp != NULL)
+ return fp (a) + 10;
+ return 10;
+}
diff --git a/elf/testobj2.c b/elf/testobj2.c
index 5c89d33c8c..ba91fe873d 100644
--- a/elf/testobj2.c
+++ b/elf/testobj2.c
@@ -1,3 +1,5 @@
+#include <dlfcn.h>
+
int
obj2func1 (int a __attribute__ ((unused)))
{
@@ -9,3 +11,12 @@ obj2func2 (int a)
{
return obj1func1 (a) + 10;
}
+
+int
+preload (int a)
+{
+ int (*fp) (int) = dlsym (RTLD_NEXT, "preload");
+ if (fp != NULL)
+ return fp (a) + 10;
+ return 10;
+}
diff --git a/elf/testobj3.c b/elf/testobj3.c
index 8e3d8865f7..f89b904cd4 100644
--- a/elf/testobj3.c
+++ b/elf/testobj3.c
@@ -1,3 +1,5 @@
+#include <dlfcn.h>
+
int
obj3func1 (int a __attribute__ ((unused)))
{
@@ -9,3 +11,12 @@ obj3func2 (int a)
{
return foo (a) + 42;
}
+
+int
+preload (int a)
+{
+ int (*fp) (int) = dlsym (RTLD_NEXT, "preload");
+ if (fp != NULL)
+ return fp (a) + 10;
+ return 10;
+}
diff --git a/elf/testobj4.c b/elf/testobj4.c
new file mode 100644
index 0000000000..38905c824a
--- /dev/null
+++ b/elf/testobj4.c
@@ -0,0 +1,22 @@
+#include <dlfcn.h>
+
+int
+obj4func1 (int a __attribute__ ((unused)))
+{
+ return 55;
+}
+
+int
+obj4func2 (int a)
+{
+ return foo (a) + 43;
+}
+
+int
+preload (int a)
+{
+ int (*fp) (int) = dlsym (RTLD_NEXT, "preload");
+ if (fp != NULL)
+ return fp (a) + 10;
+ return 10;
+}
diff --git a/elf/testobj5.c b/elf/testobj5.c
new file mode 100644
index 0000000000..0a2bbe07db
--- /dev/null
+++ b/elf/testobj5.c
@@ -0,0 +1,22 @@
+#include <dlfcn.h>
+
+int
+obj5func1 (int a __attribute__ ((unused)))
+{
+ return 66;
+}
+
+int
+obj5func2 (int a)
+{
+ return foo (a) + 44;
+}
+
+int
+preload (int a)
+{
+ int (*fp) (int) = dlsym (RTLD_NEXT, "preload");
+ if (fp != NULL)
+ return fp (a) + 10;
+ return 10;
+}
diff --git a/elf/testobj6.c b/elf/testobj6.c
new file mode 100644
index 0000000000..42bfc8e14b
--- /dev/null
+++ b/elf/testobj6.c
@@ -0,0 +1,17 @@
+int
+obj6func1 (int a __attribute__ ((unused)))
+{
+ return 77;
+}
+
+int
+obj6func2 (int a)
+{
+ return foo (a) + 46;
+}
+
+int
+preload (int a)
+{
+ return a;
+}