Fix libdl build warnings, turn on -Werror.
Change-Id: I71c39b77ac1e9a92482ce71a829449100945ec86
This commit is contained in:
Elliott Hughes
parent
d971f72905
commit
7ac975146e
@ -23,8 +23,9 @@ LOCAL_LDFLAGS += -Wl,--exclude-libs=libgcc_eh.a
|
|||||||
endif
|
endif
|
||||||
|
|
||||||
LOCAL_SRC_FILES:= libdl.c
|
LOCAL_SRC_FILES:= libdl.c
|
||||||
|
LOCAL_CFLAGS := -Wall -Wextra -Werror
|
||||||
|
|
||||||
LOCAL_MODULE:= libdl
|
LOCAL_MODULE := libdl
|
||||||
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
|
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
|
||||||
|
|
||||||
# NOTE: libdl needs __aeabi_unwind_cpp_pr0 from libgcc.a but libgcc.a needs a
|
# NOTE: libdl needs __aeabi_unwind_cpp_pr0 from libgcc.a but libgcc.a needs a
|
||||||
@ -36,23 +37,3 @@ LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
|
|||||||
LOCAL_SYSTEM_SHARED_LIBRARIES :=
|
LOCAL_SYSTEM_SHARED_LIBRARIES :=
|
||||||
|
|
||||||
include $(BUILD_SHARED_LIBRARY)
|
include $(BUILD_SHARED_LIBRARY)
|
||||||
|
|
||||||
BUILD_DLTEST:=0
|
|
||||||
ifeq ($(BUILD_DLTEST),1)
|
|
||||||
|
|
||||||
#
|
|
||||||
# dltest
|
|
||||||
#
|
|
||||||
|
|
||||||
include $(CLEAR_VARS)
|
|
||||||
|
|
||||||
LOCAL_SRC_FILES:= dltest.c
|
|
||||||
|
|
||||||
LOCAL_MODULE:= dltest
|
|
||||||
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
|
|
||||||
|
|
||||||
LOCAL_SHARED_LIBRARIES := libdl
|
|
||||||
|
|
||||||
include $(BUILD_EXECUTABLE)
|
|
||||||
|
|
||||||
endif
|
|
||||||
|
|||||||
28
libdl/NOTICE
28
libdl/NOTICE
@ -14,31 +14,3 @@ limitations under the License.
|
|||||||
|
|
||||||
-------------------------------------------------------------------
|
-------------------------------------------------------------------
|
||||||
|
|
||||||
Copyright (C) 2008 The Android Open Source Project
|
|
||||||
All rights reserved.
|
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without
|
|
||||||
modification, are permitted provided that the following conditions
|
|
||||||
are met:
|
|
||||||
Redistributions of source code must retain the above copyright
|
|
||||||
notice, this list of conditions and the following disclaimer.
|
|
||||||
Redistributions in binary form must reproduce the above copyright
|
|
||||||
notice, this list of conditions and the following disclaimer in
|
|
||||||
the documentation and/or other materials provided with the
|
|
||||||
distribution.
|
|
||||||
|
|
||||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
||||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
||||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
||||||
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
||||||
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
||||||
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
||||||
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
||||||
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
||||||
AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
||||||
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
||||||
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
||||||
SUCH DAMAGE.
|
|
||||||
|
|
||||||
-------------------------------------------------------------------
|
|
||||||
|
|
||||||
|
|||||||
147
libdl/dltest.c
147
libdl/dltest.c
@ -1,147 +0,0 @@
|
|||||||
/*
|
|
||||||
* Copyright (C) 2008 The Android Open Source Project
|
|
||||||
* All rights reserved.
|
|
||||||
*
|
|
||||||
* Redistribution and use in source and binary forms, with or without
|
|
||||||
* modification, are permitted provided that the following conditions
|
|
||||||
* are met:
|
|
||||||
* * Redistributions of source code must retain the above copyright
|
|
||||||
* notice, this list of conditions and the following disclaimer.
|
|
||||||
* * Redistributions in binary form must reproduce the above copyright
|
|
||||||
* notice, this list of conditions and the following disclaimer in
|
|
||||||
* the documentation and/or other materials provided with the
|
|
||||||
* distribution.
|
|
||||||
*
|
|
||||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
||||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
||||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
||||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
||||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
||||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
||||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
||||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
||||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
||||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
||||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
||||||
* SUCH DAMAGE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <getopt.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <dlfcn.h>
|
|
||||||
|
|
||||||
extern char *optarg;
|
|
||||||
extern int optind, opterr, optopt;
|
|
||||||
|
|
||||||
static struct option long_options[] = {
|
|
||||||
{"library", required_argument, 0, 'l'},
|
|
||||||
{"symbol", required_argument, 0, 's'},
|
|
||||||
{"help", no_argument, 0, 'h'},
|
|
||||||
{0, 0, 0, 0},
|
|
||||||
};
|
|
||||||
|
|
||||||
/* This array must parallel long_options[] */
|
|
||||||
static const char *descriptions[] = {
|
|
||||||
"specify a library path to look up symbol",
|
|
||||||
"specify symbol to look up",
|
|
||||||
"print this help screen",
|
|
||||||
};
|
|
||||||
|
|
||||||
void print_help(const char *name) {
|
|
||||||
fprintf(stdout,
|
|
||||||
"invokation:\n"
|
|
||||||
"\t%s [-l <libname>] -s <symbol name>\n"
|
|
||||||
"\t%s -h\n\n", name, name);
|
|
||||||
fprintf(stdout, "options:\n");
|
|
||||||
struct option *opt = long_options;
|
|
||||||
const char **desc = descriptions;
|
|
||||||
while (opt->name) {
|
|
||||||
fprintf(stdout, "\t-%c/--%s%s: %s\n",
|
|
||||||
opt->val,
|
|
||||||
opt->name,
|
|
||||||
(opt->has_arg ? " (argument)" : ""),
|
|
||||||
*desc);
|
|
||||||
opt++;
|
|
||||||
desc++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
int get_options(int argc, char **argv, char **lib, char **sym)
|
|
||||||
{
|
|
||||||
int c;
|
|
||||||
|
|
||||||
*lib = 0;
|
|
||||||
*sym = 0;
|
|
||||||
|
|
||||||
while (1) {
|
|
||||||
/* getopt_long stores the option index here. */
|
|
||||||
int option_index = 0;
|
|
||||||
|
|
||||||
c = getopt_long (argc, argv,
|
|
||||||
"l:s:h",
|
|
||||||
long_options,
|
|
||||||
&option_index);
|
|
||||||
/* Detect the end of the options. */
|
|
||||||
if (c == -1) break;
|
|
||||||
|
|
||||||
switch (c) {
|
|
||||||
case 'l':
|
|
||||||
*lib = strdup(optarg);
|
|
||||||
break;
|
|
||||||
case 's':
|
|
||||||
*sym = strdup(optarg);
|
|
||||||
break;
|
|
||||||
case 'h': print_help(argv[0]); exit(EXIT_FAILURE); break;
|
|
||||||
case '?':
|
|
||||||
/* getopt_long already printed an error message. */
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
fprintf(stderr, "Unknown option");
|
|
||||||
exit(EXIT_FAILURE);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return optind;
|
|
||||||
}
|
|
||||||
|
|
||||||
int main(int argc, char **argv)
|
|
||||||
{
|
|
||||||
char *libname, *symname, *prog = *argv;
|
|
||||||
|
|
||||||
get_options(argc, argv, &libname, &symname);
|
|
||||||
|
|
||||||
if (symname == NULL) {
|
|
||||||
fprintf(stderr, "You must specify a symbol!\n");
|
|
||||||
print_help(prog);
|
|
||||||
exit(EXIT_FAILURE);
|
|
||||||
}
|
|
||||||
|
|
||||||
{
|
|
||||||
const char *dlerr;
|
|
||||||
void *handle, *symbol;
|
|
||||||
|
|
||||||
printf("opening library [%s]\n", libname);
|
|
||||||
dlerr = dlerror();
|
|
||||||
handle = libname ? dlopen(libname, RTLD_NOW) : RTLD_DEFAULT;
|
|
||||||
dlerr = dlerror();
|
|
||||||
if (dlerr != NULL) fprintf(stderr, "dlopen() error: %s\n", dlerr);
|
|
||||||
|
|
||||||
printf("opening symbol [%s]\n", symname);
|
|
||||||
symbol = dlsym(handle, symname);
|
|
||||||
dlerr = dlerror();
|
|
||||||
if (dlerr != NULL) fprintf(stderr, "dlsym() error: %s\n", dlerr);
|
|
||||||
|
|
||||||
printf("closing library [%s]\n", libname);
|
|
||||||
dlclose(handle);
|
|
||||||
dlerr = dlerror();
|
|
||||||
if (dlerr != NULL) fprintf(stderr, "dlclose() error: %s\n", dlerr);
|
|
||||||
else printf("successfully opened symbol\n");
|
|
||||||
}
|
|
||||||
|
|
||||||
if (libname != NULL) free(libname);
|
|
||||||
if (symname != NULL) free(symname);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
@ -15,26 +15,23 @@
|
|||||||
*/
|
*/
|
||||||
|
|
||||||
#include <dlfcn.h>
|
#include <dlfcn.h>
|
||||||
|
#include <link.h>
|
||||||
#include <stdlib.h>
|
#include <stdlib.h>
|
||||||
|
|
||||||
/* These are stubs for functions that are actually defined
|
// These are stubs for functions that are actually defined
|
||||||
* in the dynamic linker (dlfcn.c), and hijacked at runtime.
|
// in the dynamic linker and hijacked at runtime.
|
||||||
*/
|
|
||||||
void *dlopen(const char *filename, int flag) { return 0; }
|
|
||||||
const char *dlerror(void) { return 0; }
|
|
||||||
void *dlsym(void *handle, const char *symbol) { return 0; }
|
|
||||||
int dladdr(const void *addr, Dl_info *info) { return 0; }
|
|
||||||
int dlclose(void *handle) { return 0; }
|
|
||||||
|
|
||||||
void android_get_LD_LIBRARY_PATH(char* buffer, size_t buffer_size) { }
|
void* dlopen(const char* filename __unused, int flag __unused) { return 0; }
|
||||||
void android_update_LD_LIBRARY_PATH(const char* ld_library_path) { }
|
const char* dlerror(void) { return 0; }
|
||||||
|
void* dlsym(void* handle __unused, const char* symbol __unused) { return 0; }
|
||||||
|
int dladdr(const void* addr __unused, Dl_info* info __unused) { return 0; }
|
||||||
|
int dlclose(void* handle __unused) { return 0; }
|
||||||
|
|
||||||
|
void android_get_LD_LIBRARY_PATH(char* buffer __unused, size_t buffer_size __unused) { }
|
||||||
|
void android_update_LD_LIBRARY_PATH(const char* ld_library_path __unused) { }
|
||||||
|
|
||||||
#if defined(__arm__)
|
#if defined(__arm__)
|
||||||
|
_Unwind_Ptr dl_unwind_find_exidx(_Unwind_Ptr pc __unused, int* pcount __unused) { return 0; }
|
||||||
void *dl_unwind_find_exidx(void *pc, int *pcount) { return 0; }
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/* we munge the cb definition so we don't have to include any headers here.
|
int dl_iterate_phdr(int (*cb)(struct dl_phdr_info* info, size_t size, void* data) __unused, void* data __unused) { return 0; }
|
||||||
* It won't affect anything since these are just symbols anyway */
|
|
||||||
int dl_iterate_phdr(int (*cb)(void *info, void *size, void *data), void *data) { return 0; }
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user