[PATCH v2 5/5] T360-symbol-hiding: Use nm instead of objdump.
Charles Celerier
cceleri at cs.stanford.edu
Thu May 8 08:03:05 PDT 2014
David Bremner <david at tethera.net> writes:
> Charles Celerier <cceleri at cs.stanford.edu> writes:
>> test_begin_subtest 'comparing existing to exported symbols'
>> -objdump -t $TEST_DIRECTORY/../lib/*.o | awk '$4 == ".text" && $6 ~ "^notmuch" {print $6}' | sort | uniq > ACTUAL
>> +nm -g $TEST_DIRECTORY/../lib/*.o | sed -n 's/.*\s\+T\s\+_\(notmuch_.*\)/\1/p' | sort | uniq > ACTUAL
>> sed -n 's/[[:blank:]]*\(notmuch_[^;]*\);/\1/p' $TEST_DIRECTORY/../notmuch.sym | sort | uniq > EXPORTED
>
> Hmm. It seems like the _ there is wrong. It grabs all of the symbols
> starting with _notmuch, which are symbols we _don't_ want exported.
> It makes me wonder what ends up in "notmuch.sym" on MacOS, if that test
> passes for you.
Ok. Apologies in advance for the verbose content of this email. Here is my notmuch.sym:
$ cat notmuch.sym
{
global:
__ZTIN6Xapian10LogicErrorE;
__ZTIN6Xapian12RuntimeErrorE;
__ZTIN6Xapian16DocNotFoundErrorE;
__ZTIN6Xapian20InvalidArgumentErrorE;
__ZTIN6Xapian5ErrorE;
__ZTSN6Xapian10LogicErrorE;
__ZTSN6Xapian12RuntimeErrorE;
__ZTSN6Xapian16DocNotFoundErrorE;
__ZTSN6Xapian20InvalidArgumentErrorE;
__ZTSN6Xapian5ErrorE;
notmuch_status_to_string;
notmuch_database_create;
notmuch_database_open;
notmuch_database_close;
notmuch_database_compact;
notmuch_database_destroy;
notmuch_database_get_path;
notmuch_database_get_version;
notmuch_database_needs_upgrade;
notmuch_database_upgrade;
notmuch_database_begin_atomic;
notmuch_database_end_atomic;
notmuch_database_get_directory;
notmuch_database_add_message;
notmuch_database_remove_message;
notmuch_database_find_message;
notmuch_database_find_message_by_filename;
notmuch_database_get_all_tags;
notmuch_query_create;
notmuch_query_get_query_string;
notmuch_query_set_omit_excluded;
notmuch_query_set_sort;
notmuch_query_get_sort;
notmuch_query_add_tag_exclude;
notmuch_query_search_threads;
notmuch_query_search_messages;
notmuch_query_destroy;
notmuch_threads_valid;
notmuch_threads_get;
notmuch_threads_move_to_next;
notmuch_threads_destroy;
notmuch_query_count_messages;
notmuch_query_count_threads;
notmuch_thread_get_thread_id;
notmuch_thread_get_total_messages;
notmuch_thread_get_toplevel_messages;
notmuch_thread_get_messages;
notmuch_thread_get_matched_messages;
notmuch_thread_get_authors;
notmuch_thread_get_subject;
notmuch_thread_get_oldest_date;
notmuch_thread_get_newest_date;
notmuch_thread_get_tags;
notmuch_thread_destroy;
notmuch_messages_valid;
notmuch_messages_get;
notmuch_messages_move_to_next;
notmuch_messages_destroy;
notmuch_messages_collect_tags;
notmuch_message_get_message_id;
notmuch_message_get_thread_id;
notmuch_message_get_replies;
notmuch_message_get_filename;
notmuch_message_get_filenames;
notmuch_message_get_flag;
notmuch_message_set_flag;
notmuch_message_get_date;
notmuch_message_get_header;
notmuch_message_get_tags;
notmuch_message_add_tag;
notmuch_message_remove_tag;
notmuch_message_remove_all_tags;
notmuch_message_maildir_flags_to_tags;
notmuch_message_tags_to_maildir_flags;
notmuch_message_freeze;
notmuch_message_thaw;
notmuch_message_destroy;
notmuch_tags_valid;
notmuch_tags_get;
notmuch_tags_move_to_next;
notmuch_tags_destroy;
notmuch_directory_set_mtime;
notmuch_directory_get_mtime;
notmuch_directory_get_child_files;
notmuch_directory_get_child_directories;
notmuch_directory_destroy;
notmuch_filenames_valid;
notmuch_filenames_get;
notmuch_filenames_move_to_next;
notmuch_filenames_destroy;
local: *;
};
The output of the test in question (T360-symbol-hiding) after
applying all of the patches in this series is
T360-symbol-hiding: Testing exception symbol hiding
PASS running test
PASS checking output
FAIL comparing existing to exported symbols
--- T360-symbol-hiding.3.EXPORTED 2014-05-08
14:48:52.000000000 +0000
+++ T360-symbol-hiding.3.ACTUAL 2014-05-08 14:48:52.000000000
+0000
@@ -26,7 +26,11 @@
notmuch_filenames_valid
notmuch_message_add_tag
notmuch_message_destroy
+notmuch_message_file_close
+notmuch_message_file_get_header
+notmuch_message_file_open
notmuch_message_freeze
+notmuch_message_get_author
notmuch_message_get_date
notmuch_message_get_filename
notmuch_message_get_filenames
@@ -39,6 +43,7 @@
notmuch_message_maildir_flags_to_tags
notmuch_message_remove_all_tags
notmuch_message_remove_tag
+notmuch_message_set_author
notmuch_message_set_flag
notmuch_message_tags_to_maildir_flags
notmuch_message_thaw
@@ -58,6 +63,8 @@
notmuch_query_search_threads
notmuch_query_set_omit_excluded
notmuch_query_set_sort
+notmuch_sha1_of_file
+notmuch_sha1_of_string
notmuch_status_to_string
notmuch_tags_destroy
notmuch_tags_get
This output was a clear motivation for the patch in
id:1399402716-13714-1-git-send-email-cceleri at cs.stanford.edu.
Here is some of output of the matches made on the output of nm:
$ nm -g test/../lib/*.o | sed -n '/.*\s\+T\s\+_\(notmuch_.*\)/p'
00000000000028c0 T _notmuch_database_add_message
0000000000002280 T _notmuch_database_begin_atomic
0000000000001af0 T _notmuch_database_close
0000000000001de0 T _notmuch_database_compact
0000000000000300 T _notmuch_database_create
0000000000001db0 T _notmuch_database_destroy
0000000000002300 T _notmuch_database_end_atomic
...
chuck
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