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DC: Ensure creation of output sections .{c,d}tors

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Add an object with an empty .ctors and .dtors section to the build
of each plugin.  This ensures that there will be an output section
.ctors and one .dtors in the output file (they could be empty though).
If these output sections were to be removed, the symbols defined inside
by the linker script could disappear as well, and we don't want that.

svn-id: r55149
This commit is contained in:
Marcus Comstedt 2011-01-07 16:25:05 +00:00
parent 31ffb39939
commit 176be9adad
2 changed files with 8 additions and 2 deletions
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6
backends/platform/dc/plugin_head.S Normal file
View File

@ -0,0 +1,6 @@
.section .ctors,"aw",@progbits
.section .dtors,"aw",@progbits
.end

4
configure vendored
View File

@ -2140,9 +2140,9 @@ _mak_plugins='
DYNAMIC_MODULES := 1
PLUGIN_PREFIX :=
PLUGIN_SUFFIX := .plg
PLUGIN_EXTRA_DEPS = $(abspath $(srcdir)/backends/platform/dc/plugin.x $(srcdir)/backends/platform/dc/plugin.syms) $(EXECUTABLE)
PLUGIN_EXTRA_DEPS = $(abspath $(srcdir)/backends/platform/dc/plugin.x $(srcdir)/backends/platform/dc/plugin.syms) $(EXECUTABLE) backends/platform/dc/plugin_head.o
CXXFLAGS += -DDYNAMIC_MODULES
PLUGIN_LDFLAGS = -ml -m4-single-only -nostartfiles -Wl,-q,-T$(srcdir)/backends/platform/dc/plugin.x,--just-symbols,$(EXECUTABLE),--retain-symbols-file,$(srcdir)/backends/platform/dc/plugin.syms -L$(ronindir)/lib
PLUGIN_LDFLAGS = -ml -m4-single-only -nostartfiles -Wl,-q,-T$(srcdir)/backends/platform/dc/plugin.x,--just-symbols,$(EXECUTABLE),--retain-symbols-file,$(srcdir)/backends/platform/dc/plugin.syms -L$(ronindir)/lib backends/platform/dc/plugin_head.o
PRE_OBJS_FLAGS := -Wl,--whole-archive
POST_OBJS_FLAGS := -Wl,--no-whole-archive
'