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modutils: add FEATURE_INSMOD_TRY_MMAP option

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function                                             old     new   delta
try_to_mmap_module                                     -     121    +121
bb_init_module_24                                   4514    4578     +64
bb_init_module                                       119     173     +54
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(add/remove: 1/0 grow/shrink: 2/0 up/down: 239/0)             Total: 239 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2009-10-25 04:35:22 +01:00
parent 30f3c1d5fd
commit 77c066ea5c
4 changed files with 92 additions and 16 deletions
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6
modutils/modutils.h
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@@ -51,6 +51,12 @@ enum {
#endif
};
#if ENABLE_FEATURE_INSMOD_TRY_MMAP
void* FAST_FUNC try_to_mmap_module(const char *filename, size_t *image_size_p);
#else
# define try_to_mmap_module(filename, image_size) NULL
#endif
/* Return:
* 0 on success,
* -errno on open/read error,