[Xen-devel] [PATCH v3 08/17] livepatch/tests: Make sure all .livepatch.funcs sections are read-only

[Konrad Rzeszutek Wilk <konrad@xxxxxxxxxx>]

Instead of being writable (.data). This mimics the behavior of what
livepatch-build-tools do.

Other approaches such as 'struct const livepatch_funcs' still result
in the WA section attributes.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 xen/test/livepatch/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/test/livepatch/Makefile b/xen/test/livepatch/Makefile
index 9e73861732..6e5b9a3a75 100644
--- a/xen/test/livepatch/Makefile
+++ b/xen/test/livepatch/Makefile
@@ -54,6 +54,7 @@ xen_hello_world.o: config.h livepatch_depends.h
 $(LIVEPATCH): xen_hello_world_func.o xen_hello_world.o
        $(LD) $(LDFLAGS) $(build_id_linker) -r -o $(LIVEPATCH) $^
        $(OBJCOPY) --strip-debug --strip-symbol=$(NOTE_SYMBOL) $@
+       $(OBJCOPY) --set-section-flags .livepatch.funcs=alloc,readonly $@
 
 #
 # This target is only accessible if CONFIG_LIVEPATCH is defined, which
@@ -90,6 +91,7 @@ xen_bye_world.o: config.h hello_world_livepatch_depends.h
 $(LIVEPATCH_BYE): xen_bye_world_func.o xen_bye_world.o
        $(LD) $(LDFLAGS) $(build_id_linker) -r -o $(LIVEPATCH_BYE) $^
        $(OBJCOPY) --strip-debug --strip-symbol=$(NOTE_SYMBOL) $@
+       $(OBJCOPY) --set-section-flags .livepatch.funcs=alloc,readonly $@
 
 xen_replace_world.o: config.h livepatch_depends.h
 
@@ -97,6 +99,7 @@ xen_replace_world.o: config.h livepatch_depends.h
 $(LIVEPATCH_REPLACE): xen_replace_world_func.o xen_replace_world.o
        $(LD) $(LDFLAGS) $(build_id_linker) -r -o $(LIVEPATCH_REPLACE) $^
        $(OBJCOPY) --strip-debug --strip-symbol=$(NOTE_SYMBOL) $@
+       $(OBJCOPY) --set-section-flags .livepatch.funcs=alloc,readonly $@
 
 xen_nop.o: config.h livepatch_depends.h
 
@@ -104,6 +107,7 @@ xen_nop.o: config.h livepatch_depends.h
 $(LIVEPATCH_NOP): xen_nop.o
        $(LD) $(LDFLAGS) $(build_id_linker) -r -o $(LIVEPATCH_NOP) $^
        $(OBJCOPY) --strip-debug --strip-symbol=$(NOTE_SYMBOL) $@
+       $(OBJCOPY) --set-section-flags .livepatch.funcs=alloc,readonly $@
 
 .PHONY: livepatch
 livepatch: $(LIVEPATCH) $(LIVEPATCH_BYE) $(LIVEPATCH_REPLACE) $(LIVEPATCH_NOP)
-- 
2.13.3


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