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| author | Paul Mundt <lethal@linux-sh.org> | 2009-10-01 15:43:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-01 16:11:11 -0700 |
| commit | 3ae91c21dd29e413f4111978152c14061f0984b0 (patch) | |
| tree | 64b4867e2ee81180661c287fa38d068975d1d37f | |
| parent | 817b33d38f81c8736d39283c35c886ae4668f1af (diff) | |
| download | linux-3ae91c21dd29e413f4111978152c14061f0984b0.tar.gz linux-3ae91c21dd29e413f4111978152c14061f0984b0.tar.bz2 linux-3ae91c21dd29e413f4111978152c14061f0984b0.zip | |
module: fix up CONFIG_KALLSYMS=n build.
Starting from commit 4a4962263f07d14660849ec134ee42b63e95ea9a "reduce
symbol table for loaded modules (v2)", the kernel/module.c build is broken
with CONFIG_KALLSYMS disabled.
CC kernel/module.o
kernel/module.c:1995: warning: type defaults to 'int' in declaration of 'Elf_Hdr'
kernel/module.c:1995: error: expected ';', ',' or ')' before '*' token
kernel/module.c: In function 'load_module':
kernel/module.c:2203: error: 'strmap' undeclared (first use in this function)
kernel/module.c:2203: error: (Each undeclared identifier is reported only once
kernel/module.c:2203: error: for each function it appears in.)
kernel/module.c:2239: error: 'symoffs' undeclared (first use in this function)
kernel/module.c:2239: error: implicit declaration of function 'layout_symtab'
kernel/module.c:2240: error: 'stroffs' undeclared (first use in this function)
make[1]: *** [kernel/module.o] Error 1
make: *** [kernel/module.o] Error 2
There are three different issues:
- layout_symtab() takes a const Elf_Ehdr
- layout_symtab() needs to return a value
- symoffs/stroffs/strmap are referenced by the load_module() code
despite being ifdefed out, which seems unnecessary given the noop
behaviour of layout_symtab()/add_kallsyms() in the case of
CONFIG_KALLSYMS=n.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | kernel/module.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/module.c b/kernel/module.c index fe748a86d452..8b7d8805819d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1992,12 +1992,14 @@ static inline unsigned long layout_symtab(struct module *mod, Elf_Shdr *sechdrs, unsigned int symindex, unsigned int strindex, - const Elf_Hdr *hdr, + const Elf_Ehdr *hdr, const char *secstrings, unsigned long *pstroffs, unsigned long *strmap) { + return 0; } + static inline void add_kallsyms(struct module *mod, Elf_Shdr *sechdrs, unsigned int shnum, @@ -2081,9 +2083,8 @@ static noinline struct module *load_module(void __user *umod, struct module *mod; long err = 0; void *percpu = NULL, *ptr = NULL; /* Stops spurious gcc warning */ -#ifdef CONFIG_KALLSYMS unsigned long symoffs, stroffs, *strmap; -#endif + mm_segment_t old_fs; DEBUGP("load_module: umod=%p, len=%lu, uargs=%p\n", |