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| author | Alan Jenkins <alan-jenkins@tuffmail.co.uk> | 2009-11-08 00:03:54 +0300 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-12-15 08:58:26 +0300 |
| commit | 9e1b9b80721661bd63b3662453767b22cd614fe7 (patch) | |
| tree | e1b53708f4b65c990db3b8b732dc3d984574c756 /include | |
| parent | 3e7b19efe621bcf8bfef896c9c4cc5c99c52c3ec (diff) | |
| download | linux-9e1b9b80721661bd63b3662453767b22cd614fe7.tar.xz | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 8 | ||||
| -rw-r--r-- | include/linux/module.h | 6 |
2 files changed, 10 insertions, 4 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index b6e818f4b247..67e652068e0e 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -52,8 +52,12 @@ #define LOAD_OFFSET 0 #endif -#ifndef VMLINUX_SYMBOL -#define VMLINUX_SYMBOL(_sym_) _sym_ +#ifndef SYMBOL_PREFIX +#define VMLINUX_SYMBOL(sym) sym +#else +#define PASTE2(x,y) x##y +#define PASTE(x,y) PASTE2(x,y) +#define VMLINUX_SYMBOL(sym) PASTE(SYMBOL_PREFIX, sym) #endif /* Align . to a 8 byte boundary equals to maximum function alignment. */ diff --git a/include/linux/module.h b/include/linux/module.h index 482efc865acf..6cb1a3cab5d3 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -25,8 +25,10 @@ /* Not Yet Implemented */ #define MODULE_SUPPORTED_DEVICE(name) -/* some toolchains uses a `_' prefix for all user symbols */ -#ifndef MODULE_SYMBOL_PREFIX +/* Some toolchains use a `_' prefix for all user symbols. */ +#ifdef CONFIG_SYMBOL_PREFIX +#define MODULE_SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX +#else #define MODULE_SYMBOL_PREFIX "" #endif |