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Test for ELF IFUNC functionality.

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This commit is contained in:
H.J. Lu 2009-06-03 16:21:40 -07:00 committed by Ulrich Drepper
parent fbb04b35e7
commit 2f083d7511
25 changed files with 673 additions and 1 deletions
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46
ChangeLog
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@ -1,3 +1,49 @@
2009-06-02 H.J. Lu <hongjiu.lu@intel.com>
* elf/Makefile (distribute): Add ifuncmain1.c, ifuncmain1pic.c,
ifuncmain1vis.c, ifuncmain1vispic.c, ifuncmain1static.c,
ifuncmain1staticpic.c, ifuncmain1picstatic.c, ifuncdep1.c,
ifuncdep1pic.c, ifuncmod1.c, ifuncmain1pie.c, ifuncmain1vispie.c,
ifuncmain2.c, ifuncmain2static.c, ifuncdep2.c,
funcmain2pic.c, ifuncmain2picstatic.c, ifuncdep2pic.c,
ifuncmain3.c, ifuncmod3.c,.
ifuncmain4.c, ifuncmain4static.c, ifuncmain4picstatic.c.
(tests-static): Add ifuncmain1static, ifuncmain1picstatic,
ifuncmain2static, ifuncmain2picstatic, ifuncmain4static,
ifuncmain4picstatic.
(tests): Add ifuncmain1, ifuncmain1pic, ifuncmain1vis,
ifuncmain1vispic, ifuncmain1staticpic, ifuncmain2, ifuncmain2pic,
ifuncmain3, ifuncmain4.
(tests): Depend on $(objpfx)ifuncmain1pie.out and
$(objpfx)ifuncmain1vispie.out.
(modules-names): Add ifuncmod1 ifuncmod3.
(generated): Add ifuncmain1pie ifuncmain1pie.out
ifuncmain1vispie ifuncmain1vispie.out.
Define rules to build and run the tests.
* elf/ifuncdep1.c: New file.
* elf/ifuncdep1pic.c: New file.
* elf/ifuncdep2.c: New file.
* elf/ifuncdep2pic.c: New file.
* elf/ifuncmain1.c: New file.
* elf/ifuncmain1pic.c: New file.
* elf/ifuncmain1picstatic.c: New file.
* elf/ifuncmain1pie.c: New file.
* elf/ifuncmain1static.c: New file.
* elf/ifuncmain1staticpic.c: New file.
* elf/ifuncmain1vis.c: New file..
* elf/ifuncmain1vispic.c: New file..
* elf/ifuncmain1vispie.c: New file.
* elf/ifuncmain2.c: New file.
* elf/ifuncmain2pic.c: New file.
* elf/ifuncmain2picstatic.c: New file.
* elf/ifuncmain2static.c: New file.
* elf/ifuncmain3.c: New file.
* elf/ifuncmain4.c: New file.
* elf/ifuncmain4picstatic.c: New file.
* elf/ifuncmain4static.c: New file.
* elf/ifuncmod1.c: New file.
* elf/ifuncmod3.c: New file.
2009-06-03 Ulrich Drepper <drepper@redhat.com>
* elf/dl-sysdep.c (_dl_show_auxv): Terminate correct string.

94
elf/Makefile
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@ -93,7 +93,16 @@ distribute := rtld-Rules \
order2mod1.c order2mod2.c order2mod3.c order2mod4.c \
tst-stackguard1.c tst-stackguard1-static.c \
tst-array5.c tst-array5-static.c tst-array5dep.c \
tst-array5.exp tst-leaks1.c check-execstack.c
tst-array5.exp tst-leaks1.c check-execstack.c \
ifuncmain1.c ifuncmain1pic.c ifuncmain1vis.c \
ifuncmain1vispic.c ifuncmain1static.c \
ifuncmain1staticpic.c ifuncmain1picstatic.c \
ifuncdep1.c ifuncdep1pic.c ifuncmod1.c \
ifuncmain1pie.c ifuncmain1vispie.c \
ifuncmain2.c ifuncmain2static.c ifuncdep2.c \
ifuncmain2pic.c ifuncmain2picstatic.c ifuncdep2pic.c \
ifuncmain3.c ifuncmod3.c \
ifuncmain4.c ifuncmain4static.c ifuncmain4picstatic.c
CFLAGS-dl-runtime.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-dl-lookup.c = -fexceptions -fasynchronous-unwind-tables
@ -232,6 +241,22 @@ test-extras += $(modules-names)
# filtmod1.so has a special rule
modules-names-nobuild := filtmod1
ifeq (yes,$(multi-arch))
tests-static += ifuncmain1static ifuncmain1picstatic \
ifuncmain2static ifuncmain2picstatic \
ifuncmain4static ifuncmain4picstatic
ifeq (yes,$(build-shared))
tests += ifuncmain1 ifuncmain1pic ifuncmain1vis ifuncmain1vispic \
ifuncmain1staticpic \
ifuncmain2 ifuncmain2pic ifuncmain3 ifuncmain4
ifeq (yes,$(have-fpie))
tests: $(objpfx)ifuncmain1pie.out $(objpfx)ifuncmain1vispie.out
endif
modules-names += ifuncmod1 ifuncmod3
endif
endif
include ../Rules
@ -504,6 +529,7 @@ reldep8mod2.so-no-z-defs = yes
reldep9mod1.so-no-z-defs = yes
unload3mod4.so-no-z-defs = yes
unload4mod1.so-no-z-defs = yes
ifuncmod1.so-no-z-defs = yes
ifeq ($(build-shared),yes)
# Build all the modules even when not actually running test programs.
@ -951,3 +977,69 @@ tst-leaks1-ENV = MALLOC_TRACE=$(objpfx)tst-leaks1.mtrace
$(objpfx)tst-addr1: $(libdl)
$(objpfx)tst-thrlock: $(libdl) $(shared-thread-library)
CFLAGS-ifuncmain1pic.c += $(pic-ccflag)
CFLAGS-ifuncmain1picstatic.c += $(pic-ccflag)
CFLAGS-ifuncmain1staticpic.c += $(pic-ccflag)
CFLAGS-ifuncdep1pic.c += $(pic-ccflag)
CFLAGS-ifuncmain1vispic.c += $(pic-ccflag)
CFLAGS-ifuncmain2pic.c += $(pic-ccflag)
CFLAGS-ifuncmain2picstatic.c += $(pic-ccflag)
CFLAGS-ifuncdep2pic.c += $(pic-ccflag)
CFLAGS-ifuncmain4picstatic.c += $(pic-ccflag)
LDFLAGS-ifuncmain3 = -Wl,-export-dynamic
ifeq (yesyes,$(have-fpie)$(build-shared))
CFLAGS-ifuncmain1pie.c += $(pie-ccflag)
CFLAGS-ifuncmain1vispie.c += $(pie-ccflag)
$(objpfx)ifuncmain1pie.out: $(objpfx)ifuncmain1pie
$(elf-objpfx)$(rtld-installed-name) \
--library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
$< > $@
$(objpfx)ifuncmain1pie: $(objpfx)ifuncmain1pie.o $(objpfx)ifuncmod1.so
$(LINK.o) -pie -Wl,-O1 \
$(sysdep-LDFLAGS) $(config-LDFLAGS) \
$(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
$(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
$(LDFLAGS) $(LDFLAGS-$(@F)) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
-o $@ $(objpfx)tst-pie1.o $(objpfx)tst-piemod1.so \
$(common-objpfx)libc_nonshared.a
generated += ifuncmain1pie ifuncmain1pie.out
$(objpfx)ifuncmain1vispie.out: $(objpfx)ifuncmain1vispie
$(elf-objpfx)$(rtld-installed-name) \
--library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
$< > $@
$(objpfx)ifuncmain1vispie: $(objpfx)ifuncmain1vispie.o $(objpfx)ifuncmod1.so
$(LINK.o) -pie -Wl,-O1 \
$(sysdep-LDFLAGS) $(config-LDFLAGS) \
$(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
$(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
$(LDFLAGS) $(LDFLAGS-$(@F)) \
-L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
-o $@ $(objpfx)tst-pie1.o $(objpfx)tst-piemod1.so \
$(common-objpfx)libc_nonshared.a
generated += ifuncmain1vispie ifuncmain1vispie.out
endif
$(objpfx)ifuncmain1: $(addprefix $(objpfx),ifuncmod1.so)
$(objpfx)ifuncmain1pic: $(addprefix $(objpfx),ifuncmod1.so)
$(objpfx)ifuncmain1staticpic: $(addprefix $(objpfx),ifuncdep1pic.o)
$(objpfx)ifuncmain1static: $(addprefix $(objpfx),ifuncdep1.o)
$(objpfx)ifuncmain1picstatic: $(addprefix $(objpfx),ifuncdep1pic.o)
$(objpfx)ifuncmain1vis: $(addprefix $(objpfx),ifuncmod1.so)
$(objpfx)ifuncmain1vispic: $(addprefix $(objpfx),ifuncmod1.so)
$(objpfx)ifuncmain2: $(addprefix $(objpfx),ifuncdep2.o)
$(objpfx)ifuncmain2pic: $(addprefix $(objpfx),ifuncdep2pic.o)
$(objpfx)ifuncmain2static: $(addprefix $(objpfx),ifuncdep2.o)
$(objpfx)ifuncmain2picstatic: $(addprefix $(objpfx),ifuncdep2pic.o)
$(objpfx)ifuncmain3: $(libdl)
$(objpfx)ifuncmain3.out: $(objpfx)ifuncmod3.so

3
elf/ifuncdep1.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols without -fPIC. */
#include "ifuncmod1.c"

3
elf/ifuncdep1pic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC. */
#include "ifuncmod1.c"

72
elf/ifuncdep2.c Normal file
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@ -0,0 +1,72 @@
/* Test 3 STT_GNU_IFUNC symbols. */
extern int global;
static int
one (void)
{
return 1;
}
static int
minus_one (void)
{
return -1;
}
static int
zero (void)
{
return 0;
}
void * foo1_ifunc (void) __asm__ ("foo1");
__asm__(".type foo1, %gnu_indirect_function");
void *
foo1_ifunc (void)
{
switch (global)
{
case 1:
return one;
case -1:
return minus_one;
default:
return zero;
}
}
void * foo2_ifunc (void) __asm__ ("foo2");
__asm__(".type foo2, %gnu_indirect_function");
void *
foo2_ifunc (void)
{
switch (global)
{
case 1:
return minus_one;
case -1:
return one;
default:
return zero;
}
}
void * foo3_ifunc (void) __asm__ ("foo3");
__asm__(".type foo3, %gnu_indirect_function");
void *
foo3_ifunc (void)
{
switch (global)
{
case 1:
return one;
case -1:
return zero;
default:
return minus_one;
}
}

3
elf/ifuncdep2pic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC. */
#include "ifuncdep2.c"

66
elf/ifuncmain1.c Normal file
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@ -0,0 +1,66 @@
/* Test STT_GNU_IFUNC symbols:
1. Direct function call.
2. Function pointer.
3. Visibility without override.
*/
#include <stdlib.h>
int global = -1;
int ret_foo;
int ret_foo_hidden;
int ret_foo_protected;
extern int foo (void);
extern int foo_protected (void);
#ifndef FOO_P
typedef int (*foo_p) (void);
#endif
foo_p foo_ptr = foo;
foo_p foo_procted_ptr = foo_protected;
extern foo_p get_foo_p (void);
extern foo_p get_foo_hidden_p (void);
extern foo_p get_foo_protected_p (void);
int
main (void)
{
foo_p p;
if (foo_ptr != foo)
abort ();
if (foo () != -1)
abort ();
if ((*foo_ptr) () != -1)
abort ();
if (foo_procted_ptr != foo_protected)
abort ();
if (foo_protected () != 0)
abort ();
if ((*foo_procted_ptr) () != 0)
abort ();
p = get_foo_p ();
if (p != foo)
abort ();
if (ret_foo != -1 || (*p) () != ret_foo)
abort ();
p = get_foo_hidden_p ();
if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden)
abort ();
p = get_foo_protected_p ();
if (p != foo_protected)
abort ();
if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
abort ();
return 0;
}

3
elf/ifuncmain1pic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC. */
#include "ifuncmain1.c"

3
elf/ifuncmain1picstatic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC and -static. */
#include "ifuncmain1.c"

3
elf/ifuncmain1pie.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with PIE. */
#include "ifuncmain1.c"

3
elf/ifuncmain1static.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -static. */
#include "ifuncmain1.c"

3
elf/ifuncmain1staticpic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC and no DSO. */
#include "ifuncmain1.c"

89
elf/ifuncmain1vis.c Normal file
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@ -0,0 +1,89 @@
/* Test STT_GNU_IFUNC symbols:
1. Direct function call.
2. Function pointer.
3. Visibility with override.
*/
#include <stdlib.h>
int global = -1;
int ret_foo;
int ret_foo_hidden;
int ret_foo_protected;
extern int foo (void);
extern int foo_protected (void);
#ifndef FOO_P
typedef int (*foo_p) (void);
#endif
foo_p foo_ptr = foo;
foo_p foo_procted_ptr = foo_protected;
extern foo_p get_foo_p (void);
extern foo_p get_foo_hidden_p (void);
extern foo_p get_foo_protected_p (void);
int
__attribute__ ((noinline))
foo (void)
{
return -30;
}
int
__attribute__ ((noinline))
foo_hidden (void)
{
return -20;
}
int
__attribute__ ((noinline))
foo_protected (void)
{
return -40;
}
int
main (void)
{
foo_p p;
if (foo_ptr != foo)
abort ();
if ((*foo_ptr) () != -30)
abort ();
if (foo_procted_ptr != foo_protected)
abort ();
if ((*foo_procted_ptr) () != -40)
abort ();
p = get_foo_p ();
if (p != foo)
abort ();
if (foo () != -30)
abort ();
if (ret_foo != -30 || (*p) () != ret_foo)
abort ();
p = get_foo_hidden_p ();
if (foo_hidden () != -20)
abort ();
if (ret_foo_hidden != 1 || (*p) () != ret_foo_hidden)
abort ();
p = get_foo_protected_p ();
if (p == foo_protected)
abort ();
if (foo_protected () != -40)
abort ();
if (ret_foo_protected != 0 || (*p) () != ret_foo_protected)
abort ();
return 0;
}

3
elf/ifuncmain1vispic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC. */
#include "ifuncmain1vis.c"

3
elf/ifuncmain1vispie.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with PIE. */
#include "ifuncmain1vis.c"

16
elf/ifuncmain2.c Normal file
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@ -0,0 +1,16 @@
/* Test calling one STT_GNU_IFUNC function with 3 different
STT_GNU_IFUNC definitions. */
#include <stdlib.h>
int global = -1;
extern int foo1 (void);
int
main (void)
{
if (foo1 () != -1)
abort ();
return 0;
}

3
elf/ifuncmain2pic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC. */
#include "ifuncmain2.c"

3
elf/ifuncmain2picstatic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC and -static. */
#include "ifuncmain2.c"

3
elf/ifuncmain2static.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -static. */
#include "ifuncmain2.c"

120
elf/ifuncmain3.c Normal file
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@ -0,0 +1,120 @@
/* Test STT_GNU_IFUNC symbols with dlopen:
1. Direct function call.
2. Function pointer.
3. Visibility with override.
*/
#include <dlfcn.h>
#include <stdlib.h>
#include <stdio.h>
typedef int (*foo_p) (void);
int
__attribute__ ((noinline))
foo (void)
{
return -30;
}
int
__attribute__ ((noinline))
foo_hidden (void)
{
return -20;
}
int
__attribute__ ((noinline))
foo_protected (void)
{
return -40;
}
int
main (void)
{
foo_p p;
foo_p (*f) (void);
int *ret;
void *h = dlopen ("ifuncmod3.so", RTLD_LAZY);
if (h == NULL)
{
printf ("cannot load: %s\n", dlerror ());
return 1;
}
f = dlsym (h, "get_foo_p");
if (f == NULL)
{
printf ("symbol not found: %s\n", dlerror ());
return 1;
}
ret = dlsym (h, "ret_foo");
if (ret == NULL)
{
printf ("symbol not found: %s\n", dlerror ());
return 1;
}
p = (*f) ();
if (p != foo)
abort ();
if (foo () != -30)
abort ();
if (*ret != -30 || (*p) () != *ret)
abort ();
f = dlsym (h, "get_foo_hidden_p");
if (f == NULL)
{
printf ("symbol not found: %s\n", dlerror ());
return 1;
}
ret = dlsym (h, "ret_foo_hidden");
if (ret == NULL)
{
printf ("symbol not found: %s\n", dlerror ());
return 1;
}
p = (*f) ();
if (foo_hidden () != -20)
abort ();
if (*ret != 1 || (*p) () != *ret)
abort ();
f = dlsym (h, "get_foo_protected_p");
if (f == NULL)
{
printf ("symbol not found: %s\n", dlerror ());
return 1;
}
ret = dlsym (h, "ret_foo_protected");
if (ret == NULL)
{
printf ("symbol not found: %s\n", dlerror ());
return 1;
}
p = (*f) ();
if (p == foo_protected)
abort ();
if (foo_protected () != -40)
abort ();
if (*ret != 0 || (*p) () != *ret)
abort ();
if (dlclose (h) != 0)
{
printf ("cannot close: %s\n", dlerror ());
return 1;
}
return 0;
}

4
elf/ifuncmain4.c Normal file
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@ -0,0 +1,4 @@
/* Test STT_GNU_IFUNC symbols in a single source file. */
#include "ifuncmod1.c"
#include "ifuncmain1.c"

3
elf/ifuncmain4picstatic.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -fPIC and -static. */
#include "ifuncmain4.c"

3
elf/ifuncmain4static.c Normal file
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@ -0,0 +1,3 @@
/* Test STT_GNU_IFUNC symbols with -static. */
#include "ifuncmain4.c"

114
elf/ifuncmod1.c Normal file
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@ -0,0 +1,114 @@
/* Test STT_GNU_IFUNC symbols:
1. Direct function call.
2. Function pointer.
3. Visibility.
*/
extern int global;
static int
one (void)
{
return 1;
}
static int
minus_one (void)
{
return -1;
}
static int
zero (void)
{
return 0;
}
void * foo_ifunc (void) __asm__ ("foo");
__asm__(".type foo, %gnu_indirect_function");
void *
foo_ifunc (void)
{
switch (global)
{
case 1:
return one;
case -1:
return minus_one;
default:
return zero;
}
}
void * foo_hidden_ifunc (void) __asm__ ("foo_hidden");
__asm__(".type foo_hidden, %gnu_indirect_function");
void *
foo_hidden_ifunc (void)
{
switch (global)
{
case 1:
return minus_one;
case -1:
return one;
default:
return zero;
}
}
void * foo_protected_ifunc (void) __asm__ ("foo_protected");
__asm__(".type foo_protected, %gnu_indirect_function");
void *
foo_protected_ifunc (void)
{
switch (global)
{
case 1:
return one;
case -1:
return zero;
default:
return minus_one;
}
}
/* Test hidden indirect function. */
__asm__(".hidden foo_hidden");
/* Test protected indirect function. */
__asm__(".protected foo_protected");
extern int foo (void);
extern int foo_hidden (void);
extern int foo_protected (void);
extern int ret_foo;
extern int ret_foo_hidden;
extern int ret_foo_protected;
#define FOO_P
typedef int (*foo_p) (void);
foo_p
get_foo_p (void)
{
ret_foo = foo ();
return foo;
}
foo_p
get_foo_hidden_p (void)
{
ret_foo_hidden = foo_hidden ();
return foo_hidden;
}
foo_p
get_foo_protected_p (void)
{
ret_foo_protected = foo_protected ();
return foo_protected;
}

8
elf/ifuncmod3.c Normal file
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@ -0,0 +1,8 @@
/* Test STT_GNU_IFUNC symbols with dlopen. */
#include "ifuncmod1.c"
int ret_foo;
int ret_foo_hidden;
int ret_foo_protected;
int global = -1;