Use PR_SET_VMA_ANON_NAME to name the abort message mapping.
This makes it easier for tools to find the mapping. I am planning
to use this in crashpad to add HWASAN reports to the minidump.
Bug: http://crbug.com/crashpad/287
Change-Id: I600e551ef26d6ff62849319365d77912afa82fde
diff --git a/libc/bionic/android_set_abort_message.cpp b/libc/bionic/android_set_abort_message.cpp
index 56e6771..2ea12ee 100644
--- a/libc/bionic/android_set_abort_message.cpp
+++ b/libc/bionic/android_set_abort_message.cpp
@@ -33,6 +33,7 @@
#include <stddef.h>
#include <string.h>
#include <sys/mman.h>
+#include <sys/prctl.h>
#include "private/bionic_defs.h"
#include "private/bionic_globals.h"
@@ -82,6 +83,10 @@
return;
}
+ // Name the abort message mapping to make it easier for tools to find the
+ // mapping.
+ prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, map, size, "abort message");
+
magic_abort_msg_t* new_magic_abort_message = reinterpret_cast<magic_abort_msg_t*>(map);
fill_abort_message_magic(new_magic_abort_message);
new_magic_abort_message->msg.size = size;