module: make MODULE_SYMBOL_PREFIX into a CONFIG option
The next commit will require the use of MODULE_SYMBOL_PREFIX in
.tmp_exports-asm.S. Currently it is mixed in with C structure
definitions in "asm/module.h". Move the definition of this arch option
into Kconfig, so it can be easily accessed by any code.
This also lets modpost.c use the same definition. Previously modpost
relied on a hardcoded list of architectures in mk_elfconfig.c.
A build test for blackfin, one of the two MODULE_SYMBOL_PREFIX archs,
showed the generated code was unchanged. vmlinux was identical save
for build ids, and an apparently randomized suffix on a single "__key"
symbol in the kallsyms data).
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Acked-by: Mike Frysinger <vapier@gentoo.org> (blackfin)
CC: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
index 11d69c3..ff954f8 100644
--- a/scripts/mod/Makefile
+++ b/scripts/mod/Makefile
@@ -8,7 +8,7 @@
$(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
quiet_cmd_elfconfig = MKELF $@
- cmd_elfconfig = $(obj)/mk_elfconfig $(ARCH) < $< > $@
+ cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@
$(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
$(call if_changed,elfconfig)