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Commit 8808f6c1 authored by Josh Gao's avatar Josh Gao
Browse files

libdebuggerd: decode fdsan owner tags. 

Test: debuggerd `pidof system_server` | grep " fd "
Change-Id: Ic4bb30b8602acf5912e776a61825d9645ec93c65
parent bf06a40a

debuggerd/libdebuggerd/open_files_list.cpp

+5 −2
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 


#include "libdebuggerd/open_files_list.h"



#include <android/fdsan.h>

#include <dirent.h>

#include <errno.h>

#include <stdio.h>
@@ -122,8 +123,10 @@ void dump_open_files_list(log_t* log, const OpenFilesList& files, const char* pr 
    const std::optional<std::string>& path = entry.path;

    const std::optional<uint64_t>& fdsan_owner = entry.fdsan_owner;

    if (path && fdsan_owner) {

      _LOG(log, logtype::OPEN_FILES, "%sfd %i: %s (owned by %#" PRIx64 ")\n", prefix, fd,

           path->c_str(), *fdsan_owner);

      const char* type = android_fdsan_get_tag_type(*fdsan_owner);

      uint64_t value = android_fdsan_get_tag_value(*fdsan_owner);

      _LOG(log, logtype::OPEN_FILES, "%sfd %i: %s (owned by %s %#" PRIx64 ")\n", prefix, fd,

           path->c_str(), type, value);

    } else if (path && !fdsan_owner) {

      _LOG(log, logtype::OPEN_FILES, "%sfd %i: %s (unowned)\n", prefix, fd, path->c_str());

    } else if (!path && fdsan_owner) {