Make LD_PRELOAD failures just warnings.
This matches glibc and makes life easier for developers who want to
sometimes preload a library from init (which has no conditionals); they
can simply move/remove the library to disable.
Change-Id: I579b8633f958235af6e46bb53b378b9e363afb1f
diff --git a/linker/linker.h b/linker/linker.h
index 61d623a..200a682 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -43,7 +43,16 @@
__libc_format_buffer(linker_get_error_buffer(), linker_get_error_buffer_size(), fmt, ##x); \
/* If LD_DEBUG is set high enough, log every dlerror(3) message. */ \
DEBUG("%s\n", linker_get_error_buffer()); \
- } while(0)
+ } while (false)
+
+#define DL_WARN(fmt, x...) \
+ do { \
+ __libc_format_log(ANDROID_LOG_WARN, "linker", fmt, ##x); \
+ __libc_format_fd(2, "WARNING: linker: "); \
+ __libc_format_fd(2, fmt, ##x); \
+ __libc_format_fd(2, "\n"); \
+ } while (false)
+
// Returns the address of the page containing address 'x'.
#define PAGE_START(x) ((x) & PAGE_MASK)