Report errors to the log, not just stderr.
In particular this affects assert(3) and __cxa_pure_virtual, both of
which have managed to confuse people this week by apparently aborting
without reason. (Because stderr goes nowhere, normally.)
Bug: 6852995
Bug: 6840813
Change-Id: I7f5d17d5ddda439e217b7932096702dc013b9142
diff --git a/libc/bionic/stubs.c b/libc/bionic/stubs.c
index cc4c04e..1aeb581 100644
--- a/libc/bionic/stubs.c
+++ b/libc/bionic/stubs.c
@@ -25,17 +25,19 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
-#include <grp.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <pwd.h>
-#include <netdb.h>
-#include <mntent.h>
-#include <private/android_filesystem_config.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <errno.h>
+
#include <ctype.h>
+#include <errno.h>
+#include <grp.h>
+#include <mntent.h>
+#include <netdb.h>
+#include <private/android_filesystem_config.h>
+#include <private/logd.h>
+#include <pthread.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
static int do_getpw_r(int by_name, const char* name, uid_t uid,
struct passwd* dst, char* buf, size_t byte_count, struct passwd** result)
@@ -438,65 +440,62 @@
return app_id_to_group( app_id_from_name(name), state );
}
-
-struct netent* getnetbyname(const char *name)
-{
- fprintf(stderr, "FIX ME! implement getgrnam() %s:%d\n", __FILE__, __LINE__);
- return NULL;
+static void unimplemented_stub(const char* function) {
+ const char* fmt = "%s(3) is not implemented on Android\n";
+ __libc_android_log_print(ANDROID_LOG_WARN, "libc", fmt, function);
+ fprintf(stderr, fmt, function);
}
-void endpwent(void)
-{
+#define UNIMPLEMENTED unimplemented_stub(__PRETTY_FUNCTION__)
+
+struct netent* getnetbyname(const char* name) {
+ UNIMPLEMENTED;
+ return NULL;
}
-struct mntent* getmntent(FILE* f)
-{
- fprintf(stderr, "FIX ME! implement getmntent() %s:%d\n", __FILE__, __LINE__);
- return NULL;
+void endpwent(void) {
+ UNIMPLEMENTED;
}
-char* ttyname(int fd)
-{
- fprintf(stderr, "FIX ME! implement ttyname() %s:%d\n", __FILE__, __LINE__);
- return NULL;
+struct mntent* getmntent(FILE* f) {
+ UNIMPLEMENTED;
+ return NULL;
}
-int ttyname_r(int fd, char *buf, size_t buflen)
-{
- fprintf(stderr, "FIX ME! implement ttyname_r() %s:%d\n", __FILE__, __LINE__);
- return -ERANGE;
+char* ttyname(int fd) {
+ UNIMPLEMENTED;
+ return NULL;
}
-struct netent *getnetbyaddr(uint32_t net, int type)
-{
- fprintf(stderr, "FIX ME! implement %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
- return NULL;
+int ttyname_r(int fd, char* buf, size_t buflen) {
+ UNIMPLEMENTED;
+ return -ERANGE;
}
-struct protoent *getprotobyname(const char *name)
-{
- fprintf(stderr, "FIX ME! implement %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
- return NULL;
+struct netent* getnetbyaddr(uint32_t net, int type) {
+ UNIMPLEMENTED;
+ return NULL;
}
-struct protoent *getprotobynumber(int proto)
-{
- fprintf(stderr, "FIX ME! implement %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
- return NULL;
+struct protoent* getprotobyname(const char* name) {
+ UNIMPLEMENTED;
+ return NULL;
}
-char* getusershell(void)
-{
- fprintf(stderr, "FIX ME! implement %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
- return NULL;
+struct protoent* getprotobynumber(int proto) {
+ UNIMPLEMENTED;
+ return NULL;
}
-void setusershell(void)
-{
- fprintf(stderr, "FIX ME! implement %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
+char* getusershell(void) {
+ UNIMPLEMENTED;
+ return NULL;
}
-void endusershell(void)
-{
- fprintf(stderr, "FIX ME! implement %s() %s:%d\n", __FUNCTION__, __FILE__, __LINE__);
+void setusershell(void) {
+ UNIMPLEMENTED;
+}
+
+void endusershell(void) {
+ UNIMPLEMENTED;
}
diff --git a/libc/private/bionic_atomic_inline.h b/libc/private/bionic_atomic_inline.h
index 0b348c3..6819af6 100644
--- a/libc/private/bionic_atomic_inline.h
+++ b/libc/private/bionic_atomic_inline.h
@@ -50,13 +50,13 @@
#define __ATOMIC_INLINE__ static __inline__ __attribute__((always_inline))
#ifdef __arm__
-# include <bionic_atomic_arm.h>
+# include "bionic_atomic_arm.h"
#elif defined(__i386__)
-# include <bionic_atomic_x86.h>
+# include "bionic_atomic_x86.h"
#elif defined(__mips__)
-# include <bionic_atomic_mips.h>
+# include "bionic_atomic_mips.h"
#else
-# include <bionic_atomic_gcc_builtin.h>
+# include "bionic_atomic_gcc_builtin.h"
#endif
#define ANDROID_MEMBAR_FULL __bionic_memory_barrier
diff --git a/libc/stdlib/assert.c b/libc/stdlib/assert.c
index 816b050..7c0a860 100644
--- a/libc/stdlib/assert.c
+++ b/libc/stdlib/assert.c
@@ -32,23 +32,23 @@
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
+#include <private/logd.h>
-void
-__assert(const char *file, int line, const char *failedexpr)
-{
- (void)fprintf(stderr,
- "assertion \"%s\" failed: file \"%s\", line %d\n",
- failedexpr, file, line);
- abort();
- /* NOTREACHED */
+// We log to stderr for the benefit of "adb shell" users, and the log for the benefit
+// of regular app developers who want to see their asserts.
+
+void __assert(const char* file, int line, const char* failed_expression) {
+ const char* fmt = "%s:%d: assertion \"%s\" failed\n";
+ __libc_android_log_print(ANDROID_LOG_FATAL, "libc", fmt, file, line, failed_expression);
+ fprintf(stderr, fmt, file, line, failed_expression);
+ abort();
+ /* NOTREACHED */
}
-void
-__assert2(const char *file, int line, const char *func, const char *failedexpr)
-{
- (void)fprintf(stderr,
- "assertion \"%s\" failed: file \"%s\", line %d, function \"%s\"\n",
- failedexpr, file, line, func);
- abort();
- /* NOTREACHED */
+void __assert2(const char* file, int line, const char* function, const char* failed_expression) {
+ const char* fmt = "%s:%d: %s: assertion \"%s\" failed\n";
+ __libc_android_log_print(ANDROID_LOG_FATAL, "libc", fmt, file, line, function, failed_expression);
+ fprintf(stderr, fmt, file, line, function, failed_expression);
+ abort();
+ /* NOTREACHED */
}
diff --git a/libc/unistd/abort.c b/libc/unistd/abort.c
index 58d620d..4dffbae 100644
--- a/libc/unistd/abort.c
+++ b/libc/unistd/abort.c
@@ -34,11 +34,6 @@
#include "thread_private.h"
#include "atexit.h"
-/* temporary, for bug hunting */
-#include "logd.h"
-#define debug_log(format, ...) \
- __libc_android_log_print(ANDROID_LOG_DEBUG, "libc-abort", (format), ##__VA_ARGS__ )
-
#ifdef __arm__
__LIBC_HIDDEN__ void
__libc_android_abort(void)
@@ -51,7 +46,7 @@
static int cleanup_called = 0;
sigset_t mask;
-
+
sigfillset(&mask);
/*
* don't block SIGABRT to give any handler a chance; we ignore
diff --git a/libstdc++/Android.mk b/libstdc++/Android.mk
index 8bc181f..7d27aa8 100644
--- a/libstdc++/Android.mk
+++ b/libstdc++/Android.mk
@@ -3,7 +3,7 @@
# Common C++ flags to build this library.
# Note that we need to access private Bionic headers
# and define ANDROID_SMP accordingly.
-libstdc++_cflags := -Ibionic/libc/private
+libstdc++_cflags := -Ibionic/libc/
ifeq ($(TARGET_CPU_SMP),true)
libstdc++_cflags += -DANDROID_SMP=1
else
diff --git a/libstdc++/src/one_time_construction.cpp b/libstdc++/src/one_time_construction.cpp
index 1eac3b1..3cfb213 100644
--- a/libstdc++/src/one_time_construction.cpp
+++ b/libstdc++/src/one_time_construction.cpp
@@ -11,8 +11,8 @@
#include <stddef.h>
#include <sys/atomics.h>
#include <endian.h>
-#include <bionic_futex.h>
-#include <bionic_atomic_inline.h>
+#include <private/bionic_futex.h>
+#include <private/bionic_atomic_inline.h>
// ARM C++ ABI and Itanium/x86 C++ ABI has different definition for
// one time construction:
diff --git a/libstdc++/src/pure_virtual.cpp b/libstdc++/src/pure_virtual.cpp
index 663c1e9..affb80f 100644
--- a/libstdc++/src/pure_virtual.cpp
+++ b/libstdc++/src/pure_virtual.cpp
@@ -1,10 +1,8 @@
+#undef NDEBUG
+#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-extern "C" void __cxa_pure_virtual()
-{
- fprintf(stderr, "Pure virtual function called. Are you calling virtual methods from a destructor?\n");
- abort();
+extern "C" void __cxa_pure_virtual() {
+ // We can't call __libc_android_log_write from libstdc++ because it's private, so cheat.
+ assert(!"Pure virtual function called. Are you calling virtual methods from a destructor?");
+ /* NOTREACHED */
}
-