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Reapply 5955dbc752

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Author: Leland Lucius <github@homerow.net>
    Date:   Wed Oct 2 10:17:00 2019 -0500

        Possible fix for bug #590

        This change reduces the risk of LADSPA plugins referencing
        Audacity symbols by using the RTLD_DEEPBIND flag when loading
        the plugins.

        It also addresses an issue specific to the "blop" plugins where
        they load their own libraries (without RTLD_DEEPBIND).

        A much better solution would be to change Audacity's default
        symbol visibility to "hidden" which would expose ONLY symbols
        specificially marked as visible.
This commit is contained in:
Leland Lucius
2019-12-15 23:24:59 -06:00
parent 2870d0c8d7
commit 9d465c69de
3 changed files with 7 additions and 7 deletions
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4
lib-src/libnyquist/nyquist/cmt/seqread.c
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@@ -471,7 +471,7 @@ private void docall()
if (fieldx == 1) fferror("Routine name expected");
else if (token[fieldx] != '(') fferror("Open paren expected");
else {
desc = &HASHENTRY(lookup(symbol));
desc = &HASHENTRY(hash_lookup(symbol));
if (!desc->symb_type) {
fieldx = 0;
fferror("Function not defined");
@@ -1038,7 +1038,7 @@ private void doset(vec_flag)
linex += scan();
if (!token[0]) fferror("Variable name expected");
else {
struct symb_descr *desc = &HASHENTRY(lookup(token));
struct symb_descr *desc = &HASHENTRY(hash_lookup(token));
if (!desc->symb_type) fferror("Called function not defined");
else if (vec_flag && (desc->symb_type != vec_symb_type)) {
fferror("This is not an array");