strip: Deal with ARM data marker symbols pointing to debug sections.
ARM data marker symbols "$d" indicate the start of a sequence of data
items in a section. For data only sections no data marker symbol is
necessary, but may be put pointing to the start of the section.
binutils however has a bug which places a data marker symbol somewhere
inside the section (at least for .debug_frame).
https://sourceware.org/bugzilla/show_bug.cgi?id=21809
When strip finds a symbol pointing to a debug section that would be
put into the .debug file then it will copy over the whole symbol table.
This isn't necessary because the symbol is redundant.
Add an ebl hook to recognize data marker symbols with implementations
for arm and aarch64. Use it in strip to strip such symbols from the
symbol table if they point to a debug section.
Signed-off-by: Mark Wielaard <mark@klomp.org>
diff --git a/libebl/ChangeLog b/libebl/ChangeLog
index 506915b..f447449 100644
--- a/libebl/ChangeLog
+++ b/libebl/ChangeLog
@@ -1,3 +1,12 @@
+2017-07-20 Mark Wielaard <mark@klomp.org>
+
+ * Makefile.am (gen_SOURCES): Add ebl_data_marker_symbol.c.
+ * ebl-hooks.h (data_marker_symbol): New hook.
+ * ebl_data_marker_symbol.c: New file.
+ * eblopenbackend.c (default_data_marker_symbol): New function.
+ (fill_defaults): Add default_data_marker_symbol.
+ * libebl.h (ebl_data_marker_symbol): New function.
+
2017-04-20 Ulf Hermann <ulf.hermann@qt.io>
* libebl.h: Use __pure_attribute__.