From: Konrad Rzeszutek Wilk <konrad@kernel.org>
To: xen-devel@lists.xenproject.org, ross.lagerwall@citrix.com,
konrad.wilk@oracle.com, julien.grall@arm.com,
sstabellini@kernel.org
Cc: andrew.cooper3@citrix.com, jbeulich@suse.com
Subject: [PATCH v3 08/17] livepatch/tests: Make sure all .livepatch.funcs sections are read-only
Date: Mon, 11 Sep 2017 20:37:17 -0400 [thread overview]
Message-ID: <20170912003726.368-9-konrad.wilk@oracle.com> (raw)
In-Reply-To: <20170912003726.368-1-konrad.wilk@oracle.com>
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@oracle.com>
---
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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next prev parent reply other threads:[~2017-09-12 0:37 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 0:37 [PATCH v3] Livepatching patch set for 4.10 Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 01/17] livepatch: Expand check for safe_for_reapply if livepatch has only .rodata Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 02/17] livepatch: Tighten alignment checks Konrad Rzeszutek Wilk
2017-09-12 14:28 ` Jan Beulich
2017-09-12 0:37 ` [PATCH v3 03/17] livepatch: Include sizes when an mismatch occurs Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 04/17] xen/livepatch/ARM32: Don't load and crash on livepatches loaded with wrong text alignment Konrad Rzeszutek Wilk
2017-09-14 11:36 ` Julien Grall
2017-09-12 0:37 ` [PATCH v3 05/17] alternative/x86/arm32: Align altinstructions (and altinstr_replacement) sections Konrad Rzeszutek Wilk
2017-09-12 14:40 ` Jan Beulich
2017-09-12 0:37 ` [PATCH v3 06/17] xen/livepatch/x86/arm32: Force .livepatch.depends section to be uint32_t aligned Konrad Rzeszutek Wilk
2017-09-14 12:27 ` Julien Grall
2017-09-19 0:32 ` Konrad Rzeszutek Wilk
2017-09-19 11:05 ` Julien Grall
2017-09-20 14:01 ` Wei Liu
2017-09-20 21:17 ` Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 07/17] livepatch/arm/x86: Strip note_depends symbol from test-cases Konrad Rzeszutek Wilk
2017-09-12 14:48 ` Jan Beulich
2017-09-12 23:46 ` Konrad Rzeszutek Wilk
2017-09-13 8:51 ` Jan Beulich
2017-09-13 16:28 ` Konrad Rzeszutek Wilk
2017-09-12 0:37 ` Konrad Rzeszutek Wilk [this message]
2017-09-12 14:49 ` [PATCH v3 08/17] livepatch/tests: Make sure all .livepatch.funcs sections are read-only Jan Beulich
2017-09-19 0:36 ` Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 09/17] livepatch/arm[32, 64]: Modify livepatch_funcs Konrad Rzeszutek Wilk
2017-09-14 13:20 ` Julien Grall
2017-09-19 0:35 ` Konrad Rzeszutek Wilk
2017-09-19 11:09 ` Julien Grall
2017-09-12 0:37 ` [PATCH v3 10/17] livepatch: Declare live patching as a supported feature Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 11/17] livepatch/x86/arm[32, 64]: Use common vmap code for applying Konrad Rzeszutek Wilk
2017-09-12 14:50 ` Andrew Cooper
2017-09-12 0:37 ` [PATCH v3 12/17] livepatch/x86/arm[32, 64]: Unify arch_livepatch_revert Konrad Rzeszutek Wilk
2017-09-14 13:23 ` Julien Grall
2017-09-12 0:37 ` [PATCH v3 13/17] livepatch: Expand spin_debug_disable in [apply|revert]_payload Konrad Rzeszutek Wilk
2017-09-14 13:47 ` Julien Grall
2017-09-12 0:37 ` [PATCH v3 14/17] livepatch/x86/arm: arch/x86/mm: generalize do_page_walk() and implement arch_livepatch_lookup_mfn Konrad Rzeszutek Wilk
2017-09-12 14:54 ` Jan Beulich
2017-09-13 0:23 ` Konrad Rzeszutek Wilk
2017-09-13 8:54 ` Jan Beulich
2017-09-14 13:54 ` Julien Grall
2017-09-12 0:37 ` [PATCH v3 15/17] livepatch/x86/arm: Utilize the arch_livepatch_lookup_mfn Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 16/17] livepatch: Add local and global symbol resolution Konrad Rzeszutek Wilk
2017-09-12 0:37 ` [PATCH v3 17/17] livepatch: Add xen_local_symbols test-case Konrad Rzeszutek Wilk
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