Add backtrace_string and export to libmemunreachable
Add backtrace_string to convert a malloc_debug backtrace to a string.
Also move the backtrace functions to libc_malloc_debug_backtrace so that
libmemunreachable can reuse them.
Change-Id: I5ad67001c0b4d184903c762863a8588181d4873b
diff --git a/libc/malloc_debug/debug_log.h b/libc/malloc_debug/debug_log.h
index 67f584d..4df0408 100644
--- a/libc/malloc_debug/debug_log.h
+++ b/libc/malloc_debug/debug_log.h
@@ -38,6 +38,8 @@
__libc_format_log(ANDROID_LOG_DEBUG, "malloc_debug", (format), ##__VA_ARGS__ )
#define error_log(format, ...) \
__libc_format_log(ANDROID_LOG_ERROR, "malloc_debug", (format), ##__VA_ARGS__ )
+#define error_log_string(str) \
+ __libc_write_log(ANDROID_LOG_ERROR, "malloc_debug", (str))
#define info_log(format, ...) \
__libc_format_log(ANDROID_LOG_INFO, "malloc_debug", (format), ##__VA_ARGS__ )