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| author | Dmitry Torokhov <dtor@vmware.com> | 2010-12-15 23:00:19 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2011-01-24 05:02:51 +0100 |
| commit | e94965ed5beb23c6fabf7ed31f625e66d7ff28de (patch) | |
| tree | 842e4cab961b568bcb98d8ab80d7d399110598a4 /include/asm-generic | |
| parent | Linux 2.6.38-rc2 (diff) | |
| download | linux-e94965ed5beb23c6fabf7ed31f625e66d7ff28de.tar.xz linux-e94965ed5beb23c6fabf7ed31f625e66d7ff28de.zip | |
module: show version information for built-in modules in sysfs
Currently only drivers that are built as modules have their versions
shown in /sys/module/<module_name>/version, but this information might
also be useful for built-in drivers as well. This especially important
for drivers that do not define any parameters - such drivers, if
built-in, are completely invisible from userspace.
This patch changes MODULE_VERSION() macro so that in case when we are
compiling built-in module, version information is stored in a separate
section. Kernel then uses this data to create 'version' sysfs attribute
in the same fashion it creates attributes for module parameters.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 68649336c4ad..6ebb81030d2d 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -364,6 +364,13 @@ VMLINUX_SYMBOL(__start___param) = .; \ *(__param) \ VMLINUX_SYMBOL(__stop___param) = .; \ + } \ + \ + /* Built-in module versions. */ \ + __modver : AT(ADDR(__modver) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___modver) = .; \ + *(__modver) \ + VMLINUX_SYMBOL(__stop___modver) = .; \ . = ALIGN((align)); \ VMLINUX_SYMBOL(__end_rodata) = .; \ } \ |