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Diffstat (limited to 'package/busybox/config/modutils/Config.in')
| -rw-r--r-- | package/busybox/config/modutils/Config.in | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/package/busybox/config/modutils/Config.in b/package/busybox/config/modutils/Config.in index 82500e18a..2e23c7b84 100644 --- a/package/busybox/config/modutils/Config.in +++ b/package/busybox/config/modutils/Config.in @@ -121,6 +121,22 @@ config BUSYBOX_FEATURE_2_4_MODULES This increases size considerably. Say N unless you plan to run ancient kernels. +config BUSYBOX_FEATURE_INSMOD_TRY_MMAP + bool "Try to load module from a mmap'ed area" + default n + depends on BUSYBOX_INSMOD || BUSYBOX_MODPROBE_SMALL + help + This option causes module loading code to try to mmap + module first. If it does not work (for example, + it does not work for compressed modules), module will be read + (and unpacked if needed) into a memory block allocated by malloc. + + The only case when mmap works but malloc does not is when + you are trying to load a big module on a very memory-constrained + machine. Malloc will momentarily need 2x as much memory as mmap. + + Choosing N saves about 250 bytes of code (on 32-bit x86). + config BUSYBOX_FEATURE_INSMOD_VERSION_CHECKING bool "Enable module version checking" default n |